CA1328402C - Somatostatins - Google Patents
SomatostatinsInfo
- Publication number
- CA1328402C CA1328402C CA000571592A CA571592A CA1328402C CA 1328402 C CA1328402 C CA 1328402C CA 000571592 A CA000571592 A CA 000571592A CA 571592 A CA571592 A CA 571592A CA 1328402 C CA1328402 C CA 1328402C
- Authority
- CA
- Canada
- Prior art keywords
- alkyl
- hydrogen
- amino
- benzyl
- alpha
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
- C07K14/655—Somatostatins
- C07K14/6555—Somatostatins at least 1 amino acid in D-form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/31—Somatostatins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/12—Carboxylic acids; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2123/00—Preparations for testing in vivo
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S930/00—Peptide or protein sequence
- Y10S930/01—Peptide or protein sequence
- Y10S930/16—Somatostatin; related peptides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S930/00—Peptide or protein sequence
- Y10S930/01—Peptide or protein sequence
- Y10S930/26—Containing cys-cys disulfide bridge between nonadjacent cysteine residues
Abstract
IMPROVEMENTS IN OR RELATING TO SOMATOSTATINS
Abstract of the Invention The invention provides a pharmaceutical composition comprising a somatostatin analogue, and its use in the treatment of breast cancer.
The pharmaceutical composition preferably contains lactic acid in addition to the somatostatin analogue and is better tolerated when administered by injection.
Abstract of the Invention The invention provides a pharmaceutical composition comprising a somatostatin analogue, and its use in the treatment of breast cancer.
The pharmaceutical composition preferably contains lactic acid in addition to the somatostatin analogue and is better tolerated when administered by injection.
Description
1328~02 IMPROVEMENTS IN OR RELATING TO SOMATOSTATINS
The present invention relates to a pharmaceutical composition compri-sing a somatostatin analogue, and to its use in the treatment of breast cancer.
Somatostatin is a tetradecapeptide incorporating a cyclic dodecapep-tide having the structure:
H-A1a-Gly-~ys-Lys-Asn-Phe-Phe-l 2 3 4 5 6 7 -Trp-Lys-Thr-Phe-Thr-Ser-Cys-OH
8 9 lO ll 12 13 14 and has the properties of inhibiting the release of growth hormone, inhibiting the release of insulin and glucagon and reducing gastric secretions. Its effect is short and, to solve this problem of short duration, somatostatin analogues which are long acting have been made.
These compounds still have to be administered by injection, which can be painful especially in repeated administration.
- 1328~2 It has now been found that parenteral compositions of somatostatin analogues, especially octreotide and derivatives thereof, show parti-cularly interesting properties, e.g. they may be better tolerated if lactic acid is present in the pharmaceutical composition.
In a first aspect the present invention provides a pharmaceutical composition comprising a somatostatin analogue and lactic acid.
By the term "analogue" as used herein is meant any straight-chain or cyclic polypeptide derived from that of the naturally occurring tetra-decapeptide somatostatin ~herein one or more amino acid units have been omiteed and~or replaced by one or more other amino radical(s) andtor ~herein one or more functional groups have been replaced by one or several other isosteric groups. The term "analogue" includes also the corresponding derivatives bearing a sugar residue.
In general, the term covers all modified derivatives of a biologically active peptide uhich exhibit a qualitatively similar effect to that of the unmodified somatostatin peptide. Hereinafter these compounds are referred to as compounds of the invention.
Cyclic, bridge cyclic and straight-chain somatostatin analogues are known compounds. Such compounds and their preparation are described in US Patent Specifications 4,310,518 and 4,235,886, in European Patent Specifications EP-A-1295; 70,021; 113,209; 215,171; 203,031; 214,872;
143,307 and in Belgian Patent Specification BE-A-900,089.
Uhen the compounds of the invention bear a sugar residue, this is preferably coupled to a N-terminal amino group and/or to at least one amino group present in a peptide side chain, more preferably to a N-terminal amino group. Such compounds and their preparation are dis-closed e.g. in U0 88/02756.
Preferred compounds of the invention are:
A. Compounds of formulae I to III
-` 1328402 CH ~/~3 R~ \~/~N112 ~y~3 G~l 4/~
G \ ~NN2 III
The present invention relates to a pharmaceutical composition compri-sing a somatostatin analogue, and to its use in the treatment of breast cancer.
Somatostatin is a tetradecapeptide incorporating a cyclic dodecapep-tide having the structure:
H-A1a-Gly-~ys-Lys-Asn-Phe-Phe-l 2 3 4 5 6 7 -Trp-Lys-Thr-Phe-Thr-Ser-Cys-OH
8 9 lO ll 12 13 14 and has the properties of inhibiting the release of growth hormone, inhibiting the release of insulin and glucagon and reducing gastric secretions. Its effect is short and, to solve this problem of short duration, somatostatin analogues which are long acting have been made.
These compounds still have to be administered by injection, which can be painful especially in repeated administration.
- 1328~2 It has now been found that parenteral compositions of somatostatin analogues, especially octreotide and derivatives thereof, show parti-cularly interesting properties, e.g. they may be better tolerated if lactic acid is present in the pharmaceutical composition.
In a first aspect the present invention provides a pharmaceutical composition comprising a somatostatin analogue and lactic acid.
By the term "analogue" as used herein is meant any straight-chain or cyclic polypeptide derived from that of the naturally occurring tetra-decapeptide somatostatin ~herein one or more amino acid units have been omiteed and~or replaced by one or more other amino radical(s) andtor ~herein one or more functional groups have been replaced by one or several other isosteric groups. The term "analogue" includes also the corresponding derivatives bearing a sugar residue.
In general, the term covers all modified derivatives of a biologically active peptide uhich exhibit a qualitatively similar effect to that of the unmodified somatostatin peptide. Hereinafter these compounds are referred to as compounds of the invention.
Cyclic, bridge cyclic and straight-chain somatostatin analogues are known compounds. Such compounds and their preparation are described in US Patent Specifications 4,310,518 and 4,235,886, in European Patent Specifications EP-A-1295; 70,021; 113,209; 215,171; 203,031; 214,872;
143,307 and in Belgian Patent Specification BE-A-900,089.
Uhen the compounds of the invention bear a sugar residue, this is preferably coupled to a N-terminal amino group and/or to at least one amino group present in a peptide side chain, more preferably to a N-terminal amino group. Such compounds and their preparation are dis-closed e.g. in U0 88/02756.
Preferred compounds of the invention are:
A. Compounds of formulae I to III
-` 1328402 CH ~/~3 R~ \~/~N112 ~y~3 G~l 4/~
G \ ~NN2 III
wherein W is S or (CH2)~ uhere s is 0, 1 or 2;
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of Rl and R2 independently of the other, is Cl_s alkyl, benzyl, benzyl having one or two C1_ 5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1_s alkoxy substituents, or Cl_s alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
~3 iS 3-indolylmethyl, either unsubstituted or having C~_ 5 alkyl, C1_ 5 alkoxy or halogen substitution;
R4 is C1_5 alkyl, Cl_5 hydroxyalkyl, benzyl, carboxy-(Cl_ 5 alkyl), amino (Cl_ 5 alkyl) or benzyl having a Cl_ 5 alkyl, halogen, hydroxy, amino, nitro and/or C1_5 alkoxy substituent;
R5 is C1_5 alkyl, benzyl, or benzyl having a C1_5 alkyl, halogen, hydroxy, amino, nitro, and/or Cl_5 alkoxy substituent.
Fxamples of C1_5 alkyl groups are methyl, ethyl, propyl, iso-propyl, butyl, sec-butyl and pentyl; examples of Cl_5 alkoxy groups are methoxy, ethoxy, propoxy, isopropoxy, butoxy, tert-butoxy, and pentoxy; halogens are fluorine, chlorine, bromine, or iodine: and the term "5- or 6-membered heterocyclic ring" represents such rings with one or two oxygen, nitrogen and/or suphur heteroatoms, e.g. imidazole, furan, thiazole, pyrazole and pyridine.
In the compounds of Formulae I, II and III, there are several asymmetric centres which lead to the existence of optical isomers for such compounds. For each of the asymmetric centres of the various amino acids which make up these cyclic hexapeptides, both the D and L configurations are included.
13284~2 The following are rep~esentative cyclic hexapeptide analogues of somatostatin of Formulae I, II and III:
N-Me~ -P~ rp ~ro-Phe-~rp ~e-~hr~y~ ~he-Thr-Lys Ia r Cys^Phe-Trp I Iys-Thr-! ,ys IIIa Prefecred Formula ~ compounds are:
1) Cyclo-(N-Me-Ala-~yr-D-Trp-Lys-~hr-~he) 2) Cyclo-~N-Me-Ala-Phe-D-Trp-Lys-Thr-Phe) 3) Cyclo-~N-Me-Al--Phe-L-Trp-Lys-Thr-Phe) ~) Cyclo-(N-Me-Ala-Phe-D-Trp-Lys-Thr-p-Cl-Phe) 5) Cyclo-(N-Me-Ala-Phe-D-5-F-Trp-Lys-~hr-Phe) 6) Cyclo-(N-Me-Ala-~he-L-5-F-Trp-Lys-Thr-Phe) 7) Cyclo-~-Me-Ala-Phe-D-Trp-Lys-Ser-Phe) a) cyclo-lN-Me-Ala-Tyr-D-Trp-Lys-val-phe) 9) Cyclo-(N-Me-Ala-~yr-D-Trp-Lys-Val-Trp) 10) Cyclo-(N-Me-Ala-~yr-L-Trp-Lys-val-phe) 11) Cyclo-~S~r-Ala-N-Me-Phe-Hi~D-Trp-Lys) 13284~2 Pr~ferred For~ula I1 compounds are 12) Cyclo-(Pro-Tyr-D-Trp-Lys-Thr-Phc) 13) Cyclo-~Pro-Phe-D-Trp-Ly~-Thr-Pbe) 14) Cyclo-~Pro-Phe^L-Trp-Lys-Thr-Phe) 15) Cyclo-(Pro-Phe-D-~rp-Ly~-Thr-p-Cl-Phe) 16) Cyclo-(Pro-Phe-D-5-F-Trp-Lys-Thr-P~e~
17) Cyclo-~Pro-Ph~-L-5-F-~rp-Lys-Thr-P~e) l~) Cyclo-(Pro-Ph~-D-Srp-Ly~-Ser-Ph-) Preferred Formula II~ compounds are 19) Cyclo-~Cys-~ys-Tyr-D-Trp-Lys- m r) 20) Cyclo-(~ys-Cy~-Tyr-D-Trp-Lys-Val) 21) Cyclo-(Cys-Cys-Tyr-L-Trp-Ly~-Val) 22) Cyclo-(Cys-Cys-Phe-D-Trp-Lys-S~r) 23) Cyelo-(Cys-Cys-Phe-L-Srp-Lys-Thr) 24) Cyclo-( ~s-cys-His-D-Trp-Lys-ThrJ
25) Cyclo-(Cys-~ys-His-D-Trp-Lys-Val) 26) Cyclo-( ~ Cys-~la-Phe-D-Trp-Lys-Thr) B. Compounds of formula IV
A'~ ~H2-S-Yl Y2-S-CH2 N- H-CO-B-C-D-F-NH-CH-F IV
A /
wherein A is Cl_l2 alkyl, C7_l0 phenylalkyl or a group of formula RCO-, whereby i) R is hydrogen, Cl_ll alkyl, phenyl or C7_l0 phenylalkyl, o~
ii) RCO-is 1328~2 - 7 - lQO-7173 a) an L- or D-phenylalanine residue optionally ring-substituted by F, Cl, Br, No2, NH2, OH, Cl_3 alkyl and~or Cl_3 alkoxy b) the residue of a natural a-amino acid other than defined under a) above or of a corresponding D-amino acid, or c) a dipeptide residue in which the individual amino acid residues are ehe same or different and are selected from those defined under a) and/or b) above, the a-amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) being optio-nally mono-or di-C1_ 12 alkylated, A' is hydrogen or, when A is Cl_l2 alkyl or C~_10 phenylalkyl, also Cl_ 12 alkyl or C~_10 phenylalkyl, Yl and Y2 represent together a direct bond or each of Yl and Y2 is independently hydrogen or a radical of formulae (1) to (5) IR~ C~ CH2 -CO-f-(CH2)n~H -CO- ~ -CO-NHRc Rb H2)n (1) (2) (3) -CO-NH-ÇH-COOR~
Rd _Co-(N8)p- jC ~(C~2 r (4) (5) R' wherein R~ is methyl or ethyl Rb is hydrogen, methyl or ethyl m is a whole number from 1 to 4 n is a whole number from 1 to 5 R~ is (C1_6)alkyl Rd represents the substituent attached to the a-carbon atom of a natural ~-amino acid (including hydrogen) R. is (C~_5)alkyl R.' and Rb' are independently hydrogen, methyl or ethyl, R9 and Rg are independently hydrogen, halogen, (C~_3)alkyl or (C1_3)alkoxy, p is O or 1, q is O or 1, and r is 0, 1 or 2, B is -Phe- optionally ring-substituted by halogen, NO2, NH2, OH, C1_3alkyl and /or C~_3alkoxy, or naphthylalanine C is (L)-Trp- or (D)-Trp- optionally -N-methylated and optionally benzene-ring-substituted by halogen, NO2, NH2, OH, C1_3 alkyl and/or C1_3 alkoxy, D is -Lys-, ThiaLys, yF-Lys, ~F-Lys or Orn, optionally ~-N-methyl-ated, or a 4-aminocyclohexylAla or 4-aminocyclohexylGly residue E is Thr, Ser, Val, Phe, Ile or an aminoisobutyric acid residue ~Rll F is a group of formula -COOR~, -CH20R1o, -CON \ or Rl2 ,, co l 1 xl wherein R7 is hydrogen or C1_3alkyl, R1o is hydrogen or the residue of a physiologically acceptable, physiologically hydrolysable ester, R11 is hydrogen, C1_ 3 alkyl, phenyl or C7_1o phenyl-alkyl, R12 is hydrogen, C1_3alkyl or a group of formula-CH(Rl3)-X1, R13 is-CH20H, -(CH2)2-OH, -(CH2)3-OH, or -CH(CH3)0H or repre-sents the substituent attached to the a-carbon atom of a natural a-amino acid (including hydrogen) and X1 is a group of formula -COOR7, -CH20R1o or / Rl 4 -CO-N \ wherein Rl5 R7 and R1o have the meanings given above, R14 is hydrogen or C1_3alkyl and R15 is hydrogen, C1_3alkyl, phenyl or C7_10phenylalkyl, and R16 is hydrogen or hydroxy, with the proviso that vhen Rl2 is -CH(R13)-X1 then R11 is hydrogen or methyl, wherein the residues B, D and L have the L-configuration, and the residues in the 2-and 7-position and any residues Y1 4) and Yz 4) each independently have the (L)- or (D)- configuration.
In the compounds of formula IV, the following significances or combi-nations thereof are preferred.
1. A is C7_10 phenylalkyl, especially phenethyl, or a group of formula RCO. Preferably A is a group of formula RCO.
1.1. Preferably R is C1_11 alkyl or C~_10 phenylalkyl, especially C7_10 phenylalkyl, more especially phenethyl, or RCO has the meanings a), b) or c).
13284~2 1.2. Uhen RC0 has the meanings a), b) or c), the -amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) is preferably non-alkylated or mono-C1_12 alkylated, espe-cially -Cl_8 alkylated, more especially -methylated. Most pre~erably the N-terminal is non-alkylated.
1.3. ~hen RC0 has the meaning a) this is preferably a') an L- or D-phenylalanine or -tyrosine rcsidue optionally mono-N-C1_l2 alkylated.
More preferably a') is an L- or D-phenylalanine residue or an L- or D-N-(C1_8-alkyl)-phenylalanine residue. Most preferably a') is a D-phe-nylalanine or D-N-(Cl_3 alkyl)-phenylalanine residue, especially a D-phenylalanine or D-(N-methyl)-phenylalanine residue.
1.4. Uhen RC0 has the meaning b) or c) the defined residue is pre-ferably lipophilic. Preferred residues b) are thus b') a-amino acid residues having a hydrocarbon side chain, e.g. leucine and norleucine residues, said residues having the L- or D-configuration, and preferred residues c) are dipeptide residues in which the individual amino acid residues are the same or different and are selected from those defined under a') and b') above.
1.5. Most preferably RC0 has the meaning a) especially the meaning a').
2. B is B', where B' is Phe or Tyr 3. C is C~, where C~ is -(D)Trp-4. D is D', where D' is -Lys-, -MeLys- or -Lys(F-Me)-, especially -Lys-.
5. E is E', where E' is the residue of a natural a-amino acid other than Val, especially -Thr-.
~ 132~2 - 11 ~ 100-7173 6. F is F', where F' is a group of formula -CO- ~ , especially a group of ~12 ~ Rll formula -CO-N
CH(R13)-X
(in which case R~1.H or CH3). In the latter case the moiety -CH(R~3)-X
preferably has the L-conflguratlon. Preferably F' is other than -ThrNH
when E' is Thr.
6.1. R11 is preferably hydrogen.
6.2. As the substituent attached to the a-carbon atom of a natural amino acid (i.e. of formula H2N-CH(R13)-COOH), R13 i9 preferably -CH20H, -CH(CH3)-OH, isobutyl or benzyl, or R13 is -(CH2)2-OH or -(CH2)3-OH. It is especially -CH20H or -CH(CH3)OH.
~Rl4 6.3. X~ is preferably a group of formula -CO-N
\ Rls or -CH2-ORlo, especially of formula -CH2-OR1o and Rlo i9 preferably hy-drogen or has the meaning given under 7 below. Host preferably it is hydrogen.
7. As the residue of a physiologically acceptable, physiologi-cally hydrolysable ester R1o ls preferably HCO, C2_12 alkylcarbonyl, C8-12 phenylalkylcarbonyl or benzoyl.
8. Preferably the residues in the 2- and 7-positions have the L-coniiguration.
~, ~
- ~
--` 13284~2 9. Preferably Y1 and Y2 together represent a direct bond.
Most preferred compound of formula IV is the compound IVa H-( D)Phe-Cys-Phe-(D)Trp-Lys-Thr-Cys-Thr-ol also known as octreotide.
C. Compounds of formulae V to VIII
H-Cys-Phe-Phe-(D)Trp-Lys-Thr-Phe-Cys-OH V
see Vale et al., Hetabolism, 27, Supp. 1, 139, (1978)]
~Asn-Phs-Phe-(D)Trp-Lys-Thr-Phe-Gabal VI
lsee European Patent Publication No 1295 and Application No. 78 100 994.9]
~HeAla-Tyr-(D)Trp-Lys-Val-Phe. VII
[see Veber et al., Life Sciences, 34, 1371-1378 (1984) and European Patent Application No. 82106205.6 (published as No. 70 021)] also known as cyclo (N-Me-Ala-Tyr-D-Trp-Lys-Val-Phe).
NHeP~e-His-(D)Trp-Lys-Val-Ala-l VIII
- Isee R.F. Nutt et al. Klin. ~ochenschr. (1986) 64 (Suppl. VII) 71-73.
; . ':~ ' ' .
, -`` 1328402 The compounds of the invention may exist e.g. in free form, salt form or in the form of complexes thereof. Acid add~tion salts may be formed with e.g. organic acids, polymeric acids and inorganic acids.
Such acid addition salt forms include e.g. the hydrochlorides and acetates. Complexes are e.g. formed from compounds of the invention on addition of inorganic substances, e.g. inorganic salts or hydroxides such as Ca- and Zn-salts, and/or an addition of polymeric organic substances.
The compounds of the invention may be prepared in accordance with conventional methods. They are conveniently used in the form of an acetate hydrate. Typical peptide concentrations are from 85 to 95 percent.
According to the invention, in addition to the lactic acid and the compound of the lnvention, the pharmaceutical composition pre-ferably contains also a basic compound selected in such a way that the pharmaceutical composition is buffered to a pH of 4 to 4.5, preferably 4 2.
Preferably the basic compound is selected from sodium hydroxide and sodium hydrogen-carbonate. Such a compound is preferably added in such an amount that the resulting pharmaceutical composition has a pH
buffered as indicated above.
Preferably the pharmaceutical composition of the invention is water based. It may be used in the same way as for known compositions based on e.g. acetic acid and sodium acetate. Conveniently it is used for parenteral administration, e.g. subcutaneously. Typical doses for s.c. administration are from 0.05 to 1 mg compound of the invention B
-- 13284~2 per ml, particularly 0.1 to 1 mg/ml, preferably given twice or once a day or by continous infusion. The composition may be adminiQtered at the same doses and in the same way as for other known compositions containing the same active agent.
The ratio of lactic acid to compound of the invention is prefe-rably from about 1 : 1 to about 40 : 1, particularly 5 : 1 to 40 : 1.
The lactic acid is conveniently used as a hydrate, e.g. 88 ~ pure.
Typically the pharmaceutical composition of the invention may contain per ml from 0.05 to 1 mg of a compound of the invention, from about 2 to 4 mg lactic acid, particularly as a hydrate ~88 ~ pure), sufficient sodium hydrogencarbonate or sodium hydroxide to pH 4.2 and sterile vater.
The composition of the invention may contain further ingredi-ents, e.g. a preserving agent, for example phenol, and/or an agent for ad~usting i~otonicity, for example mannitol or sodium chloride. Pre-ferably, phenol is added to the composition when it is formulated as multldose vials.
Uhen mannitol is used for ad~usting the isotonicity of the pharmaceutical composltlon of the lnventlon, the amount of mannitol preferably does not exceed 5.5 ~ by weight of the composition. Conve-niently mannitol is present in a ratio mannitol to lactic acid of about 10 : 1 to 20 : 1.
Uhen sodium chloride is used for adjusting the isotonicity, it is preferably present in a ratio to lactic acid of about 1 : 1 to 20 : 1, more preferably 2 : 1 to 10 : 1.
The composition of the invention may be produced according to con-ventional methods, e.g. by mixing a somatostatin analogue with lactic acid and optionally the other ingredients as mentioned in the desired '~ ' .
13284~2 amount. Preferably the somatostatin analogue is first dissolved in water (for injection). The composition of the invention is advantageously pre-pared under sterile and aseptic conditions; the compounds of the in-vention may also be produced under sterile conditions. The composition of the invention being intended for parenteral administration, particularly for injections, it is conveniently filled up in ampoules or vials under aseptic conditions. The pharmaceutical composition may be packed under carbon dioxide or other inert gas to prevent degradation, preferably under carbon dioxide.
After injection, the composition of the invention is locally much better tolerated than one containing acetic acid and sodium acetate, e.g.
known compositions of the compound IVa. Particularly the parenteral administration of a composition of the invention, e.g subcutaneous injection, is less painful.
In addition to the improved local tolerance after injection, the composition of the invention which basically contains a polypeptide as somatostatin analogue, exhibits good stability characteristics.
The pharmaceutical composition of the invention is particularly indicated for use in the treatment of breast cancer.
Breast carcinoma is the most common type of tumours in women over 40 years age and a leading cause of deaths. The invention may be of value for tumours which are hormone-dependent, e.g. estrogen-dependent, or hormone-independent. Breast cancer is a disease for which an important effort has still to be invested to find any sort of alleviation.
It has been found that the compounds of formulae I to III, the compounds of formula IV wherein B is B', C is C', D is D', E is E' and F is F', especially the compound IVa, and their derivatives bearing a sugar residue, particularly the derivatives preparable by an Amadori or Heyns rearrangement from a natural or a synthetically accessible 1328~02 mono-, di- or oligosaccharide, and the compounds of formulae V to VIII, as defined above, have a beneficial effect on patients with breast cancer, e.g. in arresting progress of the d~sease, as indicated by e.g. extent and duration of the response.
Preferred somatostatin analogues bearing a sugar residue are those disclosed in U0 8~/02756.
A particularly preferred compound is N-la-glucosyl(1-4)-de-oxyfructosyl]-DPhe-Cys-Phe-DTrp-Lys-Thr-Cys-Thr-ol (referred to as compound IVb).
The beneficial effect on patients with breast cancer with the somatostatin analogues as mentioned above may be shown in the following clinical trials:
In a first clinical trial, 5 patients suffering from metastatic breast carcinoma are studiet, who had no previous systemic treatment of metastasis (adjuvant treatment is ignored) and had easy access to their veins. The patients had PS 0 or 1 and could be post-menopausal.
The compounds of the invention may be continuously administered parenterally, e.g. s.c. by means of a pump at the rate of e.g. 0.5 to 2 mg per 24 hours, over at least 3 days.
The growth factor IGF profile is determined and the levels found to be reduced.
A second clinical trial may be effected as follows:
In a second trial the compounds of the invention are admi-nistered to at least 14 patients having breast cancer and the extent and duration of the response determined.
~' , . , .
Patients are included who have breast cancer as evidenced by histological biopsy (glandular analysis - EOA). They present a meta-static illness and/or loco-regional localisation which is measurable and evaluable. If desired patients are included who are resistant to other treatment to conventional therapy such as surgery, radiotherapy, other chemotheraw and/or hormone therapy.
The patients present at least one target, on X-ray analysis, which is measurable or evaluable such as ~ primitive metastatic tumour which is cutaneous or sub-cutaneous. It may be gangliar or visceral.
Preferably the patients have lesions which have progressed within the month preceding the trial and have an estimated survival time of at least 3 month.
Preferably the trial excludes:
-patients in which the sole criteria for diagnosing breast cancer are biological modifications, -patients administered with an embroynic carcinoma antigen pathology, -patients with ascitis, a pleural effusion, a pulmonary carcinoma lymphangitis, or an osseous localisation as sole metastatic manifestation, -patients treated on a unique tumoural target by radiotherapy less than eight weeks before inclusion in the study tthey are eligible however if evidence of progression during this time~, -patients with a unique cerebral localisation, -patients presenting another malignant tumour with the exception of a carcinoma in situ in the cervix uteri or a spino- or basocellular skin cancer, and -patients not able to attend regular consultations.
With these exclusions the efficacy of the compounds may be followed more clearly. The compounds may be used in the method of treatment at the invention however in treating patients falling in the above exclusion.
The compounds of the invention may be administered at the same dosage as or at a lower dosage than in the first trial, but preferably in two doses, one in the morning and one in the evening. The treatment is for at least 3 months or until complete remission. The response may be followed by conventional methodology, e.g. according to IUCC response criteria, e.g. progression, stabilization, partial or complete re-mission. The evaluation is effected e.g. on day 0, 15, 45, 60 and 90.
A third clinical trial may be effected as follows:
Patients with advanced breast cancer are included. In addition their breast cancers are analysed with autoradiography on adjacent tissue sections using as radioligand e.g. either 125 I-[Leu8, D-Trp22, Tyr2s]-somatostatin-28 or a 12sI-Tyr3 analogue of the compound IVa, for their content in somatostatin receptors. The patients have progressive disease and measurable and/or evaluable parameters according to criteria of the IUCC (i.e. appearance of new lesions or growth of existing metastatic lesions) not responding to primary hormonal and/or cytotoxic therapy. As in the above indicated second clinical trial, the third trial preferably also excludes patients with previous or concurrent malignancies at other sites, with the exception of cone biopsied in situ carcinoma of the cervix uteri and adequately treated basal or squamous cell carcinoma of the skin.
The compounds of the invention may be administered at the same dosage as or at a lower dosage than in the second trial. Preferably the compounds of the invention are administered parenterally, e.g. sub-cutaneous, particularly in a continuous subcutaneous way by means of a portable syringe pump (infusion pump). Treatment is for at leas~ 2 13284~2 months or until complete remission. The response may be followed by con ventional methodology e.g. according to IUCC response criteria. The eva-luation is effected e.g. on day 0,30 and 60. All lesions are measured at each assessment or when multiple lesions are present, a representative number of 5 lesions may be selected for measurement. Regression of the lesions is the sum of the products of the diameters of each individual lesion or those selected for study, which decreases by 50 % or more.
The compounds of the invention, e.g. octreotide, is administered, e.g. parenterally, e.g. sub-cutaneously, or orally. The appropriate do-sage will vary depending upon, for example, the somatostatin analogue employed, the host, the mode of administration and the severity of the condition being treated. Doses may be in the range used to treat gastro-enteropancreatic endocrine (GI) tumours such as vipomas, or acromegaly, to about 10 times that dose. Preferred ranges are e.g. from about 4 to 10 times the GI-tumour or acromegaly dose.
Thus for octreotide, GI tumours may be treated initially with 0.05 mg once or twice a day by sub-cutaneous injection. Dosage can be increased to 0.2 mg three times daily. For acromegaly daily doses of from 100 to 300 ~g s.c. may be used. Octreotide is tolerated at least to 1 mg.
Indicated daily doses for octreotide in the use of the inventicn are from 0.1 to 1 mg s.c., preferably 0.2 to 1 mg s.c.. Octreotide is preferably administered parenterally in the form of a formulation based on lactic acid as disclosed above. The compound IVb (octreotide with a sugar residue) is preferably administered in an oral form, e.g.
at a dosage of 2~g to 20 mg p.o., preferably 300 to 5000 ~g p.o.. Oral unit dosages may contain for example from about 0.5 ~g to about 10 mg of compound IVb.
Preferably a dopamine agonist is also administered in the treat-ment of breast cancer.
The preferred dopamine agonist is bromocriptine, preferably used as the mesylate.
Further examples inc1ude:-N,N-diethyl-N'-[(3a-4aa,10a~)-1,2,3,4,4a,5,10,10a-octahy-dro-6-hydroxyl-1-propyl-3-benzo[quinoljnyl] sulfamide, also known as CV, p~ferably used as the hydrochloride.
Preferred compounds are low molecular weight ergot deriva-tives, iOe, compounds which do not have a peptide moiety in the 8 position, i.e. not ergopeptides. They may have for example an amino group, e.g. an acylamino, ureidio or sulphamino moiety or thiomethy1 moiety in the 8 position which may be substituted by for example one or if desired two (Cl 4)alkyl qroupsO Conveniently these have a single bond in the 9,10 position of the ergoline nucleus.
The preferred compounds are 8a-sulphamoylamino ergolines. These may be based on the formula:-~,"' Ia wherein R1a inter dlia i5 (Cl_4)dlkyl, R2d inter alia is H or (CI 4)alkyl, ~3~inter alid is -NHS02N[(C1 q)alkyl]2 The preferred Examples include:-a) 1,6-dimethyl-aa-(N,N-dimethylsulphamoyldmino)-ergoline-l (also known dS Mesulergine hereinafter compound B);
b) 6-n-propyl-&a-(N,N-diethylsulphamoylamino)-ergoline-l (N,N-diethyl-N'-(6-propylergolin-8a-yl)sulfamide) preferably used dS the hydrochloride, also known as CQP, (hereinafter compound C).
c) N,N-diethyl-N'-~(aa)-l-ethyl-6-methyl-ergolin-8-yl]-sulfamide preferably used as the hydrochloride, (hereinafter compound D).
The most preferred example is (b), i.e. compound C.
Other preferred compounds include:-i) 3-(9,10-didehydro-6-methyl-ergolin-8a-yl)-1,1-diethyl-urea (also known as Lisuride preferably used as the hydrogen maledte);
ii) 6-n-propyl-81-methylmercdptomethyl-ergoline-I (also known as Pergolide preferably used as the mesylate);
iii) Transhydrolisuride also known as terguride having the chemical name 3-(6-methyl-ergolin-&~-yl)-l~l-diethyl-ured~
published e.g. in DOS 3135305 and 3124714.
iv) 6-n-propyldihydro-lisuride also known as proterguride having the chemical name 3-~6-n-propyl-ergolin-8a-yl)-1,1-diethyl-ured.
v) 6-and 2-substituted, e.g. 6-n-propyl and/or 2-methyl or bromo derivatives of terguide, lisuride and proterguide e.g. as published in European Patent Publication No. 21206 (A.1) and 160842 (A.1).
Examples include 2-bromerguride, also known as 2-bromolisuride, preferably used in the form of the hydrochloride.
JF ' ~,A
~32~02 vi) Metergoline, also known as (+)-N-(carboxy)-1-methyl-9,10-dihydrolysergamine benzyl ester.
vii) dosergoside, also known dS N-(lS,2R,3E)-2-hydroxy-1-(hydroxymethyl)-3-heptadecdnyl)-6-methylergoline-8-beta-carboxamide.
viii) fCE-21336 also known as 1-ethyl-3-(3'-dimethylaminopropyl)--3-(6-alkyl-ergoline-8'-betd-carbonyl)-urea preferably used dS the diphosphate.
ix) GYKI-32887 also known as 6-methyl-8-(N-mesyl-N-2-azidoethyl) ergolene preferably used as the bimaleate, e.g. as disclosed in USP 4,299,836.
Groups of campounds include compounds of formula (I') ,N~-C0-R~
~ 1 .2'3 O ') Rl-N 2 --- 132~402 _ 24 -wherein Rl' is hydrogen or C1 4alkyl, R2' is hydrogen, chlorine, bromine or methyl, R3' is Cl salkyl or C3 salkenyl in which the double bond is not at the carbon atom adjacent to the nitrogen atom, and R4' is C3_7alkyl; C3 7cycloalkyl; adamantyl; phenyl; phenyl substituted by one or ~ore members selected from the group consisting of Cl 3alkyl, Cl_3alkoxy, C1 3alkylthio, trif1uoromethyl, hydroxy, nitro, ~mino and mono- and di-(Cl 3alkyl)-amino; or phenyl bearing a condensed non-aromatic, heterocyclic ring having S- or 6-ring members including 1 or' 2 hetero atoms selected from the group consisting of oxygen and sulphur, published in GB 2,152,507 A, e.g.
(5R,8S,lOR)-2,6-dimethyl-8a-pivaloylamino-ergoline (hereinafter compound E) preferably used as the hydrochloride, and the 2-chloro derivative, (SR,8S,lOR)-2-chloro-6-methyl-8a-pivaloylamino-ergoline.
13284~2 Other examples include d compound of formula 1'' ~"~1~0 ~,~
Ir~ .
~ 3 ( I " ) .
Rl-N R2 wherein R1'l is hydrogen or C1_4alkyl, R2'' is hydrogen, chlorine,, bromine or methyl, R3 " is C1 sa1kyl or C3_salkenyl in which the double bond is not at the carbon atom adjacent to the nitrogen atom, and R4tl is Cl 7alkyl; C3 7cycloalkyl; adamantyl; phenyl; phenyl substituted by one or more members selected from the group consisting of C1_3alkyl, C1 3alkoxy, C1 3alkylthio, tri-fluoromethy, hydroxy, nitro, amino and mono- and di-(C1 3 alkyl)-amino; or phenyl fused with a non-aromatic, heterocyclic ring having 5- or 6-ring members including 1 or 2 hetero atoms selected from the group consisting of oxygen dnd/or sulphur, with the proviso that when R2 " is hydrogen, neither R3'' nor R4'' is methyl, e.g. the compounds wherein R1 " = H R2'' = Br or especially CH3'', R3 " = CH3 and 24'' = tert butyl, filed off German Application P 3447383.1 filed 24 Dec 1984 as English application No. 8531420, now published as G.B.Application 2169291 A and also F~ in other countries .
These dopamine agonists may be used for example in free base form or in pharmaceutically acceptable acid addition salt form, e.g.
the hydrochloride, maleate or mesylate.
The compounds may be administered in the second clinical trial in association with the compounds of the invention. The compounds are administered at daily doses used to lower prolact~n levels. For ex-ample bromocriptine is administered at a daily dose of 5 mg p.o. twice a day.
The present invention accordingly in one aspect provides:
a) Use of a somatostatin analogue of formulae I to III, of formula IV wherein B is B', C is C', D is D', E is E', F is F' and A, A', Y1 and Y2 are as defined above, and their derivatives bearing a sugar residue, preferably their derivatives preparable by an Amadori or Heyns rearrangement from a natural or syntheti-cally accessible mono-, di- or oligosaccharide, or of formulae V
to VIII in free form or a pharmaceutically acceptable salt form of complex form, in the treatment of breast cancer, e.g.
hormone-dependent or hormone-independent breast tumours and/or somatostatin receptor positive breast tumours, and/or b) Use of a somatostatin analogue as mentioned in a) above in the manufacture of a medicament suitable for the treatment of breast cancer, particularly a parenteral or oral composition, e.g. a composition for subcutaneous administration, and/or c) A method of treating breast cancer in a subject which comprises administering a therapeutically effective amount of a somatos-tatin analogue as mentioned in a) above to a subject in need of such a treatment, and/or - 132~402 d) A method of co administering a somatosatin analogue as mentioned in a) above and a dopamine agonist in the treatment of breast cancer to a subject in need of such a treatment.
The pharmaceutical compostition of the invention is particularly useful in the treatment of breast cancer when the somatostatin analo-gue is administered s.c.,e.g. by continuous infusion. The administra-tion can be effected continuously over 24 hours with an acceptable to-lerance for the patient.
-` 132~4~2 Examples of compositions are as follows:
Somatostatin Concentrations per ml 1 Ampoules Ex. 1 Ex. 2 Ex. 3. Ex. 4 A. Octreotide* 0.05 mg 0.1 mg 0.2 mg 0.5 mg Mannitol 45.0 mg 45.0 mg 45.0 mg 45.0 mg Lactic acid (88%) 3.4 mg 3.4 mg 3.4 mg 3.4 mg Sodium hydrogeno-carbonate to pH 4.2 to pH 4.2 to pH 4.2 to pH 4.2 Uater(inject.grade) to 1 ml to 1 ml to 1 ml to 1 ml Carbon dioxide q.s. q.s. q.s. q.s.
Ex. 5 B. Octreotide* 0.2 mg NaCl 7.5 mg Lactic acid (88%) 3.4 mg Sodium hydrogeno-carbonate to pH 4.2 Uater (injéction grade) to 1 ml Carbon dioxide q.s.
2. Vials Ex. 6 Octreotide* 0.2 mg Mannitol 45.0 mg Lactic acid (88%) 3.4 mg Phenol 5.0 mg Sodium hydrogeno-carbonate to pH 4.2 Uater (injection grade) to 1 ml Carbon dioxide q.s.
* given as the acetate peptide content 87 per cent.
:-~.
The compositions are prepared by standard techniques, e.g. ln charges of 50 litres to provide about 43 000 ampoules of 1 ml or 8400 vials under carbon dioxide gassing. The compositions are filtered (e.g. through 0.2 micron holes at 0.5 bar) and introduced ln the am-poules or vials under aseptic conditions.
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of Rl and R2 independently of the other, is Cl_s alkyl, benzyl, benzyl having one or two C1_ 5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1_s alkoxy substituents, or Cl_s alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
~3 iS 3-indolylmethyl, either unsubstituted or having C~_ 5 alkyl, C1_ 5 alkoxy or halogen substitution;
R4 is C1_5 alkyl, Cl_5 hydroxyalkyl, benzyl, carboxy-(Cl_ 5 alkyl), amino (Cl_ 5 alkyl) or benzyl having a Cl_ 5 alkyl, halogen, hydroxy, amino, nitro and/or C1_5 alkoxy substituent;
R5 is C1_5 alkyl, benzyl, or benzyl having a C1_5 alkyl, halogen, hydroxy, amino, nitro, and/or Cl_5 alkoxy substituent.
Fxamples of C1_5 alkyl groups are methyl, ethyl, propyl, iso-propyl, butyl, sec-butyl and pentyl; examples of Cl_5 alkoxy groups are methoxy, ethoxy, propoxy, isopropoxy, butoxy, tert-butoxy, and pentoxy; halogens are fluorine, chlorine, bromine, or iodine: and the term "5- or 6-membered heterocyclic ring" represents such rings with one or two oxygen, nitrogen and/or suphur heteroatoms, e.g. imidazole, furan, thiazole, pyrazole and pyridine.
In the compounds of Formulae I, II and III, there are several asymmetric centres which lead to the existence of optical isomers for such compounds. For each of the asymmetric centres of the various amino acids which make up these cyclic hexapeptides, both the D and L configurations are included.
13284~2 The following are rep~esentative cyclic hexapeptide analogues of somatostatin of Formulae I, II and III:
N-Me~ -P~ rp ~ro-Phe-~rp ~e-~hr~y~ ~he-Thr-Lys Ia r Cys^Phe-Trp I Iys-Thr-! ,ys IIIa Prefecred Formula ~ compounds are:
1) Cyclo-(N-Me-Ala-~yr-D-Trp-Lys-~hr-~he) 2) Cyclo-~N-Me-Ala-Phe-D-Trp-Lys-Thr-Phe) 3) Cyclo-~N-Me-Al--Phe-L-Trp-Lys-Thr-Phe) ~) Cyclo-(N-Me-Ala-Phe-D-Trp-Lys-Thr-p-Cl-Phe) 5) Cyclo-(N-Me-Ala-Phe-D-5-F-Trp-Lys-~hr-Phe) 6) Cyclo-(N-Me-Ala-~he-L-5-F-Trp-Lys-Thr-Phe) 7) Cyclo-~-Me-Ala-Phe-D-Trp-Lys-Ser-Phe) a) cyclo-lN-Me-Ala-Tyr-D-Trp-Lys-val-phe) 9) Cyclo-(N-Me-Ala-~yr-D-Trp-Lys-Val-Trp) 10) Cyclo-(N-Me-Ala-~yr-L-Trp-Lys-val-phe) 11) Cyclo-~S~r-Ala-N-Me-Phe-Hi~D-Trp-Lys) 13284~2 Pr~ferred For~ula I1 compounds are 12) Cyclo-(Pro-Tyr-D-Trp-Lys-Thr-Phc) 13) Cyclo-~Pro-Phe-D-Trp-Ly~-Thr-Pbe) 14) Cyclo-~Pro-Phe^L-Trp-Lys-Thr-Phe) 15) Cyclo-(Pro-Phe-D-~rp-Ly~-Thr-p-Cl-Phe) 16) Cyclo-(Pro-Phe-D-5-F-Trp-Lys-Thr-P~e~
17) Cyclo-~Pro-Ph~-L-5-F-~rp-Lys-Thr-P~e) l~) Cyclo-(Pro-Ph~-D-Srp-Ly~-Ser-Ph-) Preferred Formula II~ compounds are 19) Cyclo-~Cys-~ys-Tyr-D-Trp-Lys- m r) 20) Cyclo-(~ys-Cy~-Tyr-D-Trp-Lys-Val) 21) Cyclo-(Cys-Cys-Tyr-L-Trp-Ly~-Val) 22) Cyclo-(Cys-Cys-Phe-D-Trp-Lys-S~r) 23) Cyelo-(Cys-Cys-Phe-L-Srp-Lys-Thr) 24) Cyclo-( ~s-cys-His-D-Trp-Lys-ThrJ
25) Cyclo-(Cys-~ys-His-D-Trp-Lys-Val) 26) Cyclo-( ~ Cys-~la-Phe-D-Trp-Lys-Thr) B. Compounds of formula IV
A'~ ~H2-S-Yl Y2-S-CH2 N- H-CO-B-C-D-F-NH-CH-F IV
A /
wherein A is Cl_l2 alkyl, C7_l0 phenylalkyl or a group of formula RCO-, whereby i) R is hydrogen, Cl_ll alkyl, phenyl or C7_l0 phenylalkyl, o~
ii) RCO-is 1328~2 - 7 - lQO-7173 a) an L- or D-phenylalanine residue optionally ring-substituted by F, Cl, Br, No2, NH2, OH, Cl_3 alkyl and~or Cl_3 alkoxy b) the residue of a natural a-amino acid other than defined under a) above or of a corresponding D-amino acid, or c) a dipeptide residue in which the individual amino acid residues are ehe same or different and are selected from those defined under a) and/or b) above, the a-amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) being optio-nally mono-or di-C1_ 12 alkylated, A' is hydrogen or, when A is Cl_l2 alkyl or C~_10 phenylalkyl, also Cl_ 12 alkyl or C~_10 phenylalkyl, Yl and Y2 represent together a direct bond or each of Yl and Y2 is independently hydrogen or a radical of formulae (1) to (5) IR~ C~ CH2 -CO-f-(CH2)n~H -CO- ~ -CO-NHRc Rb H2)n (1) (2) (3) -CO-NH-ÇH-COOR~
Rd _Co-(N8)p- jC ~(C~2 r (4) (5) R' wherein R~ is methyl or ethyl Rb is hydrogen, methyl or ethyl m is a whole number from 1 to 4 n is a whole number from 1 to 5 R~ is (C1_6)alkyl Rd represents the substituent attached to the a-carbon atom of a natural ~-amino acid (including hydrogen) R. is (C~_5)alkyl R.' and Rb' are independently hydrogen, methyl or ethyl, R9 and Rg are independently hydrogen, halogen, (C~_3)alkyl or (C1_3)alkoxy, p is O or 1, q is O or 1, and r is 0, 1 or 2, B is -Phe- optionally ring-substituted by halogen, NO2, NH2, OH, C1_3alkyl and /or C~_3alkoxy, or naphthylalanine C is (L)-Trp- or (D)-Trp- optionally -N-methylated and optionally benzene-ring-substituted by halogen, NO2, NH2, OH, C1_3 alkyl and/or C1_3 alkoxy, D is -Lys-, ThiaLys, yF-Lys, ~F-Lys or Orn, optionally ~-N-methyl-ated, or a 4-aminocyclohexylAla or 4-aminocyclohexylGly residue E is Thr, Ser, Val, Phe, Ile or an aminoisobutyric acid residue ~Rll F is a group of formula -COOR~, -CH20R1o, -CON \ or Rl2 ,, co l 1 xl wherein R7 is hydrogen or C1_3alkyl, R1o is hydrogen or the residue of a physiologically acceptable, physiologically hydrolysable ester, R11 is hydrogen, C1_ 3 alkyl, phenyl or C7_1o phenyl-alkyl, R12 is hydrogen, C1_3alkyl or a group of formula-CH(Rl3)-X1, R13 is-CH20H, -(CH2)2-OH, -(CH2)3-OH, or -CH(CH3)0H or repre-sents the substituent attached to the a-carbon atom of a natural a-amino acid (including hydrogen) and X1 is a group of formula -COOR7, -CH20R1o or / Rl 4 -CO-N \ wherein Rl5 R7 and R1o have the meanings given above, R14 is hydrogen or C1_3alkyl and R15 is hydrogen, C1_3alkyl, phenyl or C7_10phenylalkyl, and R16 is hydrogen or hydroxy, with the proviso that vhen Rl2 is -CH(R13)-X1 then R11 is hydrogen or methyl, wherein the residues B, D and L have the L-configuration, and the residues in the 2-and 7-position and any residues Y1 4) and Yz 4) each independently have the (L)- or (D)- configuration.
In the compounds of formula IV, the following significances or combi-nations thereof are preferred.
1. A is C7_10 phenylalkyl, especially phenethyl, or a group of formula RCO. Preferably A is a group of formula RCO.
1.1. Preferably R is C1_11 alkyl or C~_10 phenylalkyl, especially C7_10 phenylalkyl, more especially phenethyl, or RCO has the meanings a), b) or c).
13284~2 1.2. Uhen RC0 has the meanings a), b) or c), the -amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) is preferably non-alkylated or mono-C1_12 alkylated, espe-cially -Cl_8 alkylated, more especially -methylated. Most pre~erably the N-terminal is non-alkylated.
1.3. ~hen RC0 has the meaning a) this is preferably a') an L- or D-phenylalanine or -tyrosine rcsidue optionally mono-N-C1_l2 alkylated.
More preferably a') is an L- or D-phenylalanine residue or an L- or D-N-(C1_8-alkyl)-phenylalanine residue. Most preferably a') is a D-phe-nylalanine or D-N-(Cl_3 alkyl)-phenylalanine residue, especially a D-phenylalanine or D-(N-methyl)-phenylalanine residue.
1.4. Uhen RC0 has the meaning b) or c) the defined residue is pre-ferably lipophilic. Preferred residues b) are thus b') a-amino acid residues having a hydrocarbon side chain, e.g. leucine and norleucine residues, said residues having the L- or D-configuration, and preferred residues c) are dipeptide residues in which the individual amino acid residues are the same or different and are selected from those defined under a') and b') above.
1.5. Most preferably RC0 has the meaning a) especially the meaning a').
2. B is B', where B' is Phe or Tyr 3. C is C~, where C~ is -(D)Trp-4. D is D', where D' is -Lys-, -MeLys- or -Lys(F-Me)-, especially -Lys-.
5. E is E', where E' is the residue of a natural a-amino acid other than Val, especially -Thr-.
~ 132~2 - 11 ~ 100-7173 6. F is F', where F' is a group of formula -CO- ~ , especially a group of ~12 ~ Rll formula -CO-N
CH(R13)-X
(in which case R~1.H or CH3). In the latter case the moiety -CH(R~3)-X
preferably has the L-conflguratlon. Preferably F' is other than -ThrNH
when E' is Thr.
6.1. R11 is preferably hydrogen.
6.2. As the substituent attached to the a-carbon atom of a natural amino acid (i.e. of formula H2N-CH(R13)-COOH), R13 i9 preferably -CH20H, -CH(CH3)-OH, isobutyl or benzyl, or R13 is -(CH2)2-OH or -(CH2)3-OH. It is especially -CH20H or -CH(CH3)OH.
~Rl4 6.3. X~ is preferably a group of formula -CO-N
\ Rls or -CH2-ORlo, especially of formula -CH2-OR1o and Rlo i9 preferably hy-drogen or has the meaning given under 7 below. Host preferably it is hydrogen.
7. As the residue of a physiologically acceptable, physiologi-cally hydrolysable ester R1o ls preferably HCO, C2_12 alkylcarbonyl, C8-12 phenylalkylcarbonyl or benzoyl.
8. Preferably the residues in the 2- and 7-positions have the L-coniiguration.
~, ~
- ~
--` 13284~2 9. Preferably Y1 and Y2 together represent a direct bond.
Most preferred compound of formula IV is the compound IVa H-( D)Phe-Cys-Phe-(D)Trp-Lys-Thr-Cys-Thr-ol also known as octreotide.
C. Compounds of formulae V to VIII
H-Cys-Phe-Phe-(D)Trp-Lys-Thr-Phe-Cys-OH V
see Vale et al., Hetabolism, 27, Supp. 1, 139, (1978)]
~Asn-Phs-Phe-(D)Trp-Lys-Thr-Phe-Gabal VI
lsee European Patent Publication No 1295 and Application No. 78 100 994.9]
~HeAla-Tyr-(D)Trp-Lys-Val-Phe. VII
[see Veber et al., Life Sciences, 34, 1371-1378 (1984) and European Patent Application No. 82106205.6 (published as No. 70 021)] also known as cyclo (N-Me-Ala-Tyr-D-Trp-Lys-Val-Phe).
NHeP~e-His-(D)Trp-Lys-Val-Ala-l VIII
- Isee R.F. Nutt et al. Klin. ~ochenschr. (1986) 64 (Suppl. VII) 71-73.
; . ':~ ' ' .
, -`` 1328402 The compounds of the invention may exist e.g. in free form, salt form or in the form of complexes thereof. Acid add~tion salts may be formed with e.g. organic acids, polymeric acids and inorganic acids.
Such acid addition salt forms include e.g. the hydrochlorides and acetates. Complexes are e.g. formed from compounds of the invention on addition of inorganic substances, e.g. inorganic salts or hydroxides such as Ca- and Zn-salts, and/or an addition of polymeric organic substances.
The compounds of the invention may be prepared in accordance with conventional methods. They are conveniently used in the form of an acetate hydrate. Typical peptide concentrations are from 85 to 95 percent.
According to the invention, in addition to the lactic acid and the compound of the lnvention, the pharmaceutical composition pre-ferably contains also a basic compound selected in such a way that the pharmaceutical composition is buffered to a pH of 4 to 4.5, preferably 4 2.
Preferably the basic compound is selected from sodium hydroxide and sodium hydrogen-carbonate. Such a compound is preferably added in such an amount that the resulting pharmaceutical composition has a pH
buffered as indicated above.
Preferably the pharmaceutical composition of the invention is water based. It may be used in the same way as for known compositions based on e.g. acetic acid and sodium acetate. Conveniently it is used for parenteral administration, e.g. subcutaneously. Typical doses for s.c. administration are from 0.05 to 1 mg compound of the invention B
-- 13284~2 per ml, particularly 0.1 to 1 mg/ml, preferably given twice or once a day or by continous infusion. The composition may be adminiQtered at the same doses and in the same way as for other known compositions containing the same active agent.
The ratio of lactic acid to compound of the invention is prefe-rably from about 1 : 1 to about 40 : 1, particularly 5 : 1 to 40 : 1.
The lactic acid is conveniently used as a hydrate, e.g. 88 ~ pure.
Typically the pharmaceutical composition of the invention may contain per ml from 0.05 to 1 mg of a compound of the invention, from about 2 to 4 mg lactic acid, particularly as a hydrate ~88 ~ pure), sufficient sodium hydrogencarbonate or sodium hydroxide to pH 4.2 and sterile vater.
The composition of the invention may contain further ingredi-ents, e.g. a preserving agent, for example phenol, and/or an agent for ad~usting i~otonicity, for example mannitol or sodium chloride. Pre-ferably, phenol is added to the composition when it is formulated as multldose vials.
Uhen mannitol is used for ad~usting the isotonicity of the pharmaceutical composltlon of the lnventlon, the amount of mannitol preferably does not exceed 5.5 ~ by weight of the composition. Conve-niently mannitol is present in a ratio mannitol to lactic acid of about 10 : 1 to 20 : 1.
Uhen sodium chloride is used for adjusting the isotonicity, it is preferably present in a ratio to lactic acid of about 1 : 1 to 20 : 1, more preferably 2 : 1 to 10 : 1.
The composition of the invention may be produced according to con-ventional methods, e.g. by mixing a somatostatin analogue with lactic acid and optionally the other ingredients as mentioned in the desired '~ ' .
13284~2 amount. Preferably the somatostatin analogue is first dissolved in water (for injection). The composition of the invention is advantageously pre-pared under sterile and aseptic conditions; the compounds of the in-vention may also be produced under sterile conditions. The composition of the invention being intended for parenteral administration, particularly for injections, it is conveniently filled up in ampoules or vials under aseptic conditions. The pharmaceutical composition may be packed under carbon dioxide or other inert gas to prevent degradation, preferably under carbon dioxide.
After injection, the composition of the invention is locally much better tolerated than one containing acetic acid and sodium acetate, e.g.
known compositions of the compound IVa. Particularly the parenteral administration of a composition of the invention, e.g subcutaneous injection, is less painful.
In addition to the improved local tolerance after injection, the composition of the invention which basically contains a polypeptide as somatostatin analogue, exhibits good stability characteristics.
The pharmaceutical composition of the invention is particularly indicated for use in the treatment of breast cancer.
Breast carcinoma is the most common type of tumours in women over 40 years age and a leading cause of deaths. The invention may be of value for tumours which are hormone-dependent, e.g. estrogen-dependent, or hormone-independent. Breast cancer is a disease for which an important effort has still to be invested to find any sort of alleviation.
It has been found that the compounds of formulae I to III, the compounds of formula IV wherein B is B', C is C', D is D', E is E' and F is F', especially the compound IVa, and their derivatives bearing a sugar residue, particularly the derivatives preparable by an Amadori or Heyns rearrangement from a natural or a synthetically accessible 1328~02 mono-, di- or oligosaccharide, and the compounds of formulae V to VIII, as defined above, have a beneficial effect on patients with breast cancer, e.g. in arresting progress of the d~sease, as indicated by e.g. extent and duration of the response.
Preferred somatostatin analogues bearing a sugar residue are those disclosed in U0 8~/02756.
A particularly preferred compound is N-la-glucosyl(1-4)-de-oxyfructosyl]-DPhe-Cys-Phe-DTrp-Lys-Thr-Cys-Thr-ol (referred to as compound IVb).
The beneficial effect on patients with breast cancer with the somatostatin analogues as mentioned above may be shown in the following clinical trials:
In a first clinical trial, 5 patients suffering from metastatic breast carcinoma are studiet, who had no previous systemic treatment of metastasis (adjuvant treatment is ignored) and had easy access to their veins. The patients had PS 0 or 1 and could be post-menopausal.
The compounds of the invention may be continuously administered parenterally, e.g. s.c. by means of a pump at the rate of e.g. 0.5 to 2 mg per 24 hours, over at least 3 days.
The growth factor IGF profile is determined and the levels found to be reduced.
A second clinical trial may be effected as follows:
In a second trial the compounds of the invention are admi-nistered to at least 14 patients having breast cancer and the extent and duration of the response determined.
~' , . , .
Patients are included who have breast cancer as evidenced by histological biopsy (glandular analysis - EOA). They present a meta-static illness and/or loco-regional localisation which is measurable and evaluable. If desired patients are included who are resistant to other treatment to conventional therapy such as surgery, radiotherapy, other chemotheraw and/or hormone therapy.
The patients present at least one target, on X-ray analysis, which is measurable or evaluable such as ~ primitive metastatic tumour which is cutaneous or sub-cutaneous. It may be gangliar or visceral.
Preferably the patients have lesions which have progressed within the month preceding the trial and have an estimated survival time of at least 3 month.
Preferably the trial excludes:
-patients in which the sole criteria for diagnosing breast cancer are biological modifications, -patients administered with an embroynic carcinoma antigen pathology, -patients with ascitis, a pleural effusion, a pulmonary carcinoma lymphangitis, or an osseous localisation as sole metastatic manifestation, -patients treated on a unique tumoural target by radiotherapy less than eight weeks before inclusion in the study tthey are eligible however if evidence of progression during this time~, -patients with a unique cerebral localisation, -patients presenting another malignant tumour with the exception of a carcinoma in situ in the cervix uteri or a spino- or basocellular skin cancer, and -patients not able to attend regular consultations.
With these exclusions the efficacy of the compounds may be followed more clearly. The compounds may be used in the method of treatment at the invention however in treating patients falling in the above exclusion.
The compounds of the invention may be administered at the same dosage as or at a lower dosage than in the first trial, but preferably in two doses, one in the morning and one in the evening. The treatment is for at least 3 months or until complete remission. The response may be followed by conventional methodology, e.g. according to IUCC response criteria, e.g. progression, stabilization, partial or complete re-mission. The evaluation is effected e.g. on day 0, 15, 45, 60 and 90.
A third clinical trial may be effected as follows:
Patients with advanced breast cancer are included. In addition their breast cancers are analysed with autoradiography on adjacent tissue sections using as radioligand e.g. either 125 I-[Leu8, D-Trp22, Tyr2s]-somatostatin-28 or a 12sI-Tyr3 analogue of the compound IVa, for their content in somatostatin receptors. The patients have progressive disease and measurable and/or evaluable parameters according to criteria of the IUCC (i.e. appearance of new lesions or growth of existing metastatic lesions) not responding to primary hormonal and/or cytotoxic therapy. As in the above indicated second clinical trial, the third trial preferably also excludes patients with previous or concurrent malignancies at other sites, with the exception of cone biopsied in situ carcinoma of the cervix uteri and adequately treated basal or squamous cell carcinoma of the skin.
The compounds of the invention may be administered at the same dosage as or at a lower dosage than in the second trial. Preferably the compounds of the invention are administered parenterally, e.g. sub-cutaneous, particularly in a continuous subcutaneous way by means of a portable syringe pump (infusion pump). Treatment is for at leas~ 2 13284~2 months or until complete remission. The response may be followed by con ventional methodology e.g. according to IUCC response criteria. The eva-luation is effected e.g. on day 0,30 and 60. All lesions are measured at each assessment or when multiple lesions are present, a representative number of 5 lesions may be selected for measurement. Regression of the lesions is the sum of the products of the diameters of each individual lesion or those selected for study, which decreases by 50 % or more.
The compounds of the invention, e.g. octreotide, is administered, e.g. parenterally, e.g. sub-cutaneously, or orally. The appropriate do-sage will vary depending upon, for example, the somatostatin analogue employed, the host, the mode of administration and the severity of the condition being treated. Doses may be in the range used to treat gastro-enteropancreatic endocrine (GI) tumours such as vipomas, or acromegaly, to about 10 times that dose. Preferred ranges are e.g. from about 4 to 10 times the GI-tumour or acromegaly dose.
Thus for octreotide, GI tumours may be treated initially with 0.05 mg once or twice a day by sub-cutaneous injection. Dosage can be increased to 0.2 mg three times daily. For acromegaly daily doses of from 100 to 300 ~g s.c. may be used. Octreotide is tolerated at least to 1 mg.
Indicated daily doses for octreotide in the use of the inventicn are from 0.1 to 1 mg s.c., preferably 0.2 to 1 mg s.c.. Octreotide is preferably administered parenterally in the form of a formulation based on lactic acid as disclosed above. The compound IVb (octreotide with a sugar residue) is preferably administered in an oral form, e.g.
at a dosage of 2~g to 20 mg p.o., preferably 300 to 5000 ~g p.o.. Oral unit dosages may contain for example from about 0.5 ~g to about 10 mg of compound IVb.
Preferably a dopamine agonist is also administered in the treat-ment of breast cancer.
The preferred dopamine agonist is bromocriptine, preferably used as the mesylate.
Further examples inc1ude:-N,N-diethyl-N'-[(3a-4aa,10a~)-1,2,3,4,4a,5,10,10a-octahy-dro-6-hydroxyl-1-propyl-3-benzo[quinoljnyl] sulfamide, also known as CV, p~ferably used as the hydrochloride.
Preferred compounds are low molecular weight ergot deriva-tives, iOe, compounds which do not have a peptide moiety in the 8 position, i.e. not ergopeptides. They may have for example an amino group, e.g. an acylamino, ureidio or sulphamino moiety or thiomethy1 moiety in the 8 position which may be substituted by for example one or if desired two (Cl 4)alkyl qroupsO Conveniently these have a single bond in the 9,10 position of the ergoline nucleus.
The preferred compounds are 8a-sulphamoylamino ergolines. These may be based on the formula:-~,"' Ia wherein R1a inter dlia i5 (Cl_4)dlkyl, R2d inter alia is H or (CI 4)alkyl, ~3~inter alid is -NHS02N[(C1 q)alkyl]2 The preferred Examples include:-a) 1,6-dimethyl-aa-(N,N-dimethylsulphamoyldmino)-ergoline-l (also known dS Mesulergine hereinafter compound B);
b) 6-n-propyl-&a-(N,N-diethylsulphamoylamino)-ergoline-l (N,N-diethyl-N'-(6-propylergolin-8a-yl)sulfamide) preferably used dS the hydrochloride, also known as CQP, (hereinafter compound C).
c) N,N-diethyl-N'-~(aa)-l-ethyl-6-methyl-ergolin-8-yl]-sulfamide preferably used as the hydrochloride, (hereinafter compound D).
The most preferred example is (b), i.e. compound C.
Other preferred compounds include:-i) 3-(9,10-didehydro-6-methyl-ergolin-8a-yl)-1,1-diethyl-urea (also known as Lisuride preferably used as the hydrogen maledte);
ii) 6-n-propyl-81-methylmercdptomethyl-ergoline-I (also known as Pergolide preferably used as the mesylate);
iii) Transhydrolisuride also known as terguride having the chemical name 3-(6-methyl-ergolin-&~-yl)-l~l-diethyl-ured~
published e.g. in DOS 3135305 and 3124714.
iv) 6-n-propyldihydro-lisuride also known as proterguride having the chemical name 3-~6-n-propyl-ergolin-8a-yl)-1,1-diethyl-ured.
v) 6-and 2-substituted, e.g. 6-n-propyl and/or 2-methyl or bromo derivatives of terguide, lisuride and proterguide e.g. as published in European Patent Publication No. 21206 (A.1) and 160842 (A.1).
Examples include 2-bromerguride, also known as 2-bromolisuride, preferably used in the form of the hydrochloride.
JF ' ~,A
~32~02 vi) Metergoline, also known as (+)-N-(carboxy)-1-methyl-9,10-dihydrolysergamine benzyl ester.
vii) dosergoside, also known dS N-(lS,2R,3E)-2-hydroxy-1-(hydroxymethyl)-3-heptadecdnyl)-6-methylergoline-8-beta-carboxamide.
viii) fCE-21336 also known as 1-ethyl-3-(3'-dimethylaminopropyl)--3-(6-alkyl-ergoline-8'-betd-carbonyl)-urea preferably used dS the diphosphate.
ix) GYKI-32887 also known as 6-methyl-8-(N-mesyl-N-2-azidoethyl) ergolene preferably used as the bimaleate, e.g. as disclosed in USP 4,299,836.
Groups of campounds include compounds of formula (I') ,N~-C0-R~
~ 1 .2'3 O ') Rl-N 2 --- 132~402 _ 24 -wherein Rl' is hydrogen or C1 4alkyl, R2' is hydrogen, chlorine, bromine or methyl, R3' is Cl salkyl or C3 salkenyl in which the double bond is not at the carbon atom adjacent to the nitrogen atom, and R4' is C3_7alkyl; C3 7cycloalkyl; adamantyl; phenyl; phenyl substituted by one or ~ore members selected from the group consisting of Cl 3alkyl, Cl_3alkoxy, C1 3alkylthio, trif1uoromethyl, hydroxy, nitro, ~mino and mono- and di-(Cl 3alkyl)-amino; or phenyl bearing a condensed non-aromatic, heterocyclic ring having S- or 6-ring members including 1 or' 2 hetero atoms selected from the group consisting of oxygen and sulphur, published in GB 2,152,507 A, e.g.
(5R,8S,lOR)-2,6-dimethyl-8a-pivaloylamino-ergoline (hereinafter compound E) preferably used as the hydrochloride, and the 2-chloro derivative, (SR,8S,lOR)-2-chloro-6-methyl-8a-pivaloylamino-ergoline.
13284~2 Other examples include d compound of formula 1'' ~"~1~0 ~,~
Ir~ .
~ 3 ( I " ) .
Rl-N R2 wherein R1'l is hydrogen or C1_4alkyl, R2'' is hydrogen, chlorine,, bromine or methyl, R3 " is C1 sa1kyl or C3_salkenyl in which the double bond is not at the carbon atom adjacent to the nitrogen atom, and R4tl is Cl 7alkyl; C3 7cycloalkyl; adamantyl; phenyl; phenyl substituted by one or more members selected from the group consisting of C1_3alkyl, C1 3alkoxy, C1 3alkylthio, tri-fluoromethy, hydroxy, nitro, amino and mono- and di-(C1 3 alkyl)-amino; or phenyl fused with a non-aromatic, heterocyclic ring having 5- or 6-ring members including 1 or 2 hetero atoms selected from the group consisting of oxygen dnd/or sulphur, with the proviso that when R2 " is hydrogen, neither R3'' nor R4'' is methyl, e.g. the compounds wherein R1 " = H R2'' = Br or especially CH3'', R3 " = CH3 and 24'' = tert butyl, filed off German Application P 3447383.1 filed 24 Dec 1984 as English application No. 8531420, now published as G.B.Application 2169291 A and also F~ in other countries .
These dopamine agonists may be used for example in free base form or in pharmaceutically acceptable acid addition salt form, e.g.
the hydrochloride, maleate or mesylate.
The compounds may be administered in the second clinical trial in association with the compounds of the invention. The compounds are administered at daily doses used to lower prolact~n levels. For ex-ample bromocriptine is administered at a daily dose of 5 mg p.o. twice a day.
The present invention accordingly in one aspect provides:
a) Use of a somatostatin analogue of formulae I to III, of formula IV wherein B is B', C is C', D is D', E is E', F is F' and A, A', Y1 and Y2 are as defined above, and their derivatives bearing a sugar residue, preferably their derivatives preparable by an Amadori or Heyns rearrangement from a natural or syntheti-cally accessible mono-, di- or oligosaccharide, or of formulae V
to VIII in free form or a pharmaceutically acceptable salt form of complex form, in the treatment of breast cancer, e.g.
hormone-dependent or hormone-independent breast tumours and/or somatostatin receptor positive breast tumours, and/or b) Use of a somatostatin analogue as mentioned in a) above in the manufacture of a medicament suitable for the treatment of breast cancer, particularly a parenteral or oral composition, e.g. a composition for subcutaneous administration, and/or c) A method of treating breast cancer in a subject which comprises administering a therapeutically effective amount of a somatos-tatin analogue as mentioned in a) above to a subject in need of such a treatment, and/or - 132~402 d) A method of co administering a somatosatin analogue as mentioned in a) above and a dopamine agonist in the treatment of breast cancer to a subject in need of such a treatment.
The pharmaceutical compostition of the invention is particularly useful in the treatment of breast cancer when the somatostatin analo-gue is administered s.c.,e.g. by continuous infusion. The administra-tion can be effected continuously over 24 hours with an acceptable to-lerance for the patient.
-` 132~4~2 Examples of compositions are as follows:
Somatostatin Concentrations per ml 1 Ampoules Ex. 1 Ex. 2 Ex. 3. Ex. 4 A. Octreotide* 0.05 mg 0.1 mg 0.2 mg 0.5 mg Mannitol 45.0 mg 45.0 mg 45.0 mg 45.0 mg Lactic acid (88%) 3.4 mg 3.4 mg 3.4 mg 3.4 mg Sodium hydrogeno-carbonate to pH 4.2 to pH 4.2 to pH 4.2 to pH 4.2 Uater(inject.grade) to 1 ml to 1 ml to 1 ml to 1 ml Carbon dioxide q.s. q.s. q.s. q.s.
Ex. 5 B. Octreotide* 0.2 mg NaCl 7.5 mg Lactic acid (88%) 3.4 mg Sodium hydrogeno-carbonate to pH 4.2 Uater (injéction grade) to 1 ml Carbon dioxide q.s.
2. Vials Ex. 6 Octreotide* 0.2 mg Mannitol 45.0 mg Lactic acid (88%) 3.4 mg Phenol 5.0 mg Sodium hydrogeno-carbonate to pH 4.2 Uater (injection grade) to 1 ml Carbon dioxide q.s.
* given as the acetate peptide content 87 per cent.
:-~.
The compositions are prepared by standard techniques, e.g. ln charges of 50 litres to provide about 43 000 ampoules of 1 ml or 8400 vials under carbon dioxide gassing. The compositions are filtered (e.g. through 0.2 micron holes at 0.5 bar) and introduced ln the am-poules or vials under aseptic conditions.
Claims (12)
1. A pharmaceutical composition comprising a somatostatin analogue and lactic acid.
2. A composition according to Claim 1, having a pH from 4 to 4.5.
3. A composition according to Claim 2, comprising additionally a basic compound selected from sodium hydroxide and sodium hydrogen-carbonate.
4. A composition according to claim 1, 2 or 3, in which the ratio of lactic acid to the somatostatin analogue is from 1:1 to 40:1.
5. A composition according claim 1, 2 or 3, comprising additionally an agent foradjusting isotonicity.
6. A composition according to claim 1, 2 or 3, comprising per ml from 0.05 to 1 mg of somatostatin analogue, 2 to 4 mg lactic acid, sufficient sodium hydrogen-carbonate or sodium hydroxide to have a pH of 4.2, an agent for adjusting isotonicity and sterile water.
7. A composition according to claim 1 in which the somatostatin analogue is selected from the compounds of formulae I to III
I
II
III
wherein W is S or (CH2)s where s is 0, 1 or 2;
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of R1 and R2 independently of the other, is C1-5 alkyl, benzyl, benzyl having one or two C1-5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituents, or C1-5 alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
R3 is 3-indolylmethyl, either unsubstituted or having C1-5 alkyl, C1-5 alkoxy or halogen substitution;
R4 is C1-5 alkyl, C1-5 hydroxyalkyl, benzyl, carboxy-(C1-5 alkyl), amino (C1-5 alkyl) or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro and/or C1-5 alkoxy substituent;
R5 is C1-5 alkyl, benzyl, or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituent, compounds of formula IV
IV
wherein A is C1-12 alkyl, C7-10 phenylalkyl or a group of formula RCO-, whereby i) R is hydrogen, C1-11 alkyl, phenyl or C7-10 phenylalkyl, or ii) RCO-is a) an L- or D-phenylalanine residue optionally ring-substituted by F, Cl, Br, NO2, NH2. OH, C1-3 alkyl and/or C1-3 alkoxy b) the residue of a natural .alpha.-amino acid other than defined under a) above or of a corresponding D-amino acid, or c) a dipeptide residue in which the individual amino acid residues are the same or different and are selected from those defined under a) and/or b) above, the .alpha.-amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) being optio-nally mono-or di-C1-12 alkylated, A' is hydrogen or, when A is C1-12 alkyl or C7-10 phenylalkyl, also C1-12 alkyl or C7-10 phenylalkyl, Y1 and Y2 represent together a direct bond or each of Y1 and Y2 is independently hydrogen or a radical of formulae (1) to (5) -CO-NHRc (1) (2) (3) (4) (5) wherein Ra is methyl or ethyl Rb is hydrogen, methyl or ethyl m is a whole number from 1 to 4 n is a whole number from 1 to 5 Rc is (C1-6)alkyl Rd represents the substituent attached to the .alpha.-carbon atom of a natural a-amino acid (including hydrogen) R? is (C1-5)alkyl Ra' and Rb' are independently hydrogen, methyl or ethyl, R8 and R9 are independently hydrogen, halogen, (C1-3)alkyl or (C1-3)alkoxy, p is 0 or 1, q is 0 or 1, and r is 0, 1 or 2, B is -Phe- optionally ring-substituted by halogen, NO2, NH2, OH, C1-3alkyl and /or C1-3alkoxy, or naphthylalanine C is (L)-Trp- or (D)-Trp- optionally .alpha.-N-methylated and optionally benzene-ring-substituted by halogen, NO2, NH2, OH, C1-3 alkyl and/or C1-3 alkoxy, D is -Lys-, ThiaLys, .gamma.F-Lys, .delta.F-Lys or Orn, optionally .alpha.-N-methyl-ated, or a 4-aminocyclohexylAla or 4-aminocyclohexylGly residue E is Thr, Ser, Val, Phe, Ile or an aminoisobutyric acid residue F is a group of formula -COOR7, -CH2OR10, - or wherein R7 is hydrogen or C1-3alkyl, R10 is hydrogen or the residue of a physiologically acceptable, physiologically hydrolysable ester, R11 is hydrogen, C1-3 alkyl, phenyl or C7-10phenyl-alkyl, R12 is hydrogen, C1-3alkyl or a group of formula-CH(R13)-X1, R13 is CH2OH, -(CH2)2-OH, -(CH2)3-OH, or -CH(CH3)OH or repre-sents the substituent attached to the .alpha.-carbon atom of a natural .alpha.-amino acid (including hydrogen) and X1 is a group of formula -COOR7, -CH20R10 or wherein R7 and R10 have the meanings given above, R14 is hydrogen or C1-3alkyl and R15 is hydrogen, C1-3alkyl, phenyl or C7-10phenylalkyl, and R16 is hydrogen or hydroxy, with the proviso that when R12 is -CH(R13)-X1 then R11 is hydrogen or methyl, wherein the residues B, D and E have the L-configuration, and the residues in the 2-and 7-position and any residues Y1 4) and Y2 4) each independently have the (L)- or (D)- configuration and compounds of formulae V to VIII
V
VII
VIII
in free form or pharmaceutically acceptable salt form or complex form.
I
II
III
wherein W is S or (CH2)s where s is 0, 1 or 2;
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of R1 and R2 independently of the other, is C1-5 alkyl, benzyl, benzyl having one or two C1-5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituents, or C1-5 alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
R3 is 3-indolylmethyl, either unsubstituted or having C1-5 alkyl, C1-5 alkoxy or halogen substitution;
R4 is C1-5 alkyl, C1-5 hydroxyalkyl, benzyl, carboxy-(C1-5 alkyl), amino (C1-5 alkyl) or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro and/or C1-5 alkoxy substituent;
R5 is C1-5 alkyl, benzyl, or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituent, compounds of formula IV
IV
wherein A is C1-12 alkyl, C7-10 phenylalkyl or a group of formula RCO-, whereby i) R is hydrogen, C1-11 alkyl, phenyl or C7-10 phenylalkyl, or ii) RCO-is a) an L- or D-phenylalanine residue optionally ring-substituted by F, Cl, Br, NO2, NH2. OH, C1-3 alkyl and/or C1-3 alkoxy b) the residue of a natural .alpha.-amino acid other than defined under a) above or of a corresponding D-amino acid, or c) a dipeptide residue in which the individual amino acid residues are the same or different and are selected from those defined under a) and/or b) above, the .alpha.-amino group of amino acid residues a) and b) and the N-terminal amino group of dipeptide residues c) being optio-nally mono-or di-C1-12 alkylated, A' is hydrogen or, when A is C1-12 alkyl or C7-10 phenylalkyl, also C1-12 alkyl or C7-10 phenylalkyl, Y1 and Y2 represent together a direct bond or each of Y1 and Y2 is independently hydrogen or a radical of formulae (1) to (5) -CO-NHRc (1) (2) (3) (4) (5) wherein Ra is methyl or ethyl Rb is hydrogen, methyl or ethyl m is a whole number from 1 to 4 n is a whole number from 1 to 5 Rc is (C1-6)alkyl Rd represents the substituent attached to the .alpha.-carbon atom of a natural a-amino acid (including hydrogen) R? is (C1-5)alkyl Ra' and Rb' are independently hydrogen, methyl or ethyl, R8 and R9 are independently hydrogen, halogen, (C1-3)alkyl or (C1-3)alkoxy, p is 0 or 1, q is 0 or 1, and r is 0, 1 or 2, B is -Phe- optionally ring-substituted by halogen, NO2, NH2, OH, C1-3alkyl and /or C1-3alkoxy, or naphthylalanine C is (L)-Trp- or (D)-Trp- optionally .alpha.-N-methylated and optionally benzene-ring-substituted by halogen, NO2, NH2, OH, C1-3 alkyl and/or C1-3 alkoxy, D is -Lys-, ThiaLys, .gamma.F-Lys, .delta.F-Lys or Orn, optionally .alpha.-N-methyl-ated, or a 4-aminocyclohexylAla or 4-aminocyclohexylGly residue E is Thr, Ser, Val, Phe, Ile or an aminoisobutyric acid residue F is a group of formula -COOR7, -CH2OR10, - or wherein R7 is hydrogen or C1-3alkyl, R10 is hydrogen or the residue of a physiologically acceptable, physiologically hydrolysable ester, R11 is hydrogen, C1-3 alkyl, phenyl or C7-10phenyl-alkyl, R12 is hydrogen, C1-3alkyl or a group of formula-CH(R13)-X1, R13 is CH2OH, -(CH2)2-OH, -(CH2)3-OH, or -CH(CH3)OH or repre-sents the substituent attached to the .alpha.-carbon atom of a natural .alpha.-amino acid (including hydrogen) and X1 is a group of formula -COOR7, -CH20R10 or wherein R7 and R10 have the meanings given above, R14 is hydrogen or C1-3alkyl and R15 is hydrogen, C1-3alkyl, phenyl or C7-10phenylalkyl, and R16 is hydrogen or hydroxy, with the proviso that when R12 is -CH(R13)-X1 then R11 is hydrogen or methyl, wherein the residues B, D and E have the L-configuration, and the residues in the 2-and 7-position and any residues Y1 4) and Y2 4) each independently have the (L)- or (D)- configuration and compounds of formulae V to VIII
V
VII
VIII
in free form or pharmaceutically acceptable salt form or complex form.
8. A composition according to Claim 1, in which the soma-tostatin analogue is the compound IVa in free form or pharmaceutically acceptable salt form or complex form.
9. Use for the treatment of breast cancer of a somatostatin analogue of any one of formulae I to III
I
II
III
wherein W is S or (CH2)s where s is 0, 1 or 2;
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of R1 and R2 independently of the other, is C1-5 alkyl, benzyl, benzyl having one or two C1-5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituents, or C1-5 alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
R3 is 3-indolylmethyl, either unsubstituted or having C1-5 alkyl, C1-5 alkoxy or halogen substitution;
R4 is C1-5 alkyl, C1-5 hydroxyalkyl, benzyl, carboxy-(C1-5 alkyl), amino (C1-5 alkyl) or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro and/or C1-5 alkoxy substituent;
R5 is C1-5 alkyl, benzyl, or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituent, of formula IV
wherein A, A', Y1 and Y2 are as defined in Claim 7 B is B' where B' is Phe or Tyr C is C' where C' is -(D)Trp-D is D' where D' is Lys, MeLys or Lys(.epsilon.-Me) E is E' where E' is the residue of a natural .alpha.-amino-acid other than Val F is F' where F' is a group of formula wherein R11 is hydrogen or methyl, R13 is -CH2OH or represents the substituent attached to the .alpha.-carbon atom of a natural .alpha.-amino-acid (including hydrogen) and X1 is a group of formula -COOR7, -CH2OR10 or wherein R7 is hydrogen or C1-3 alkyl, R10 is hydrogen or the residue of a pysiologically-acceptable physiologically hydrolysable ester R14 is hydrogen or C1-3 alkyl, and R15 is hydrogen, C2-3 alkyl, phenyl or C1-7 phenylalkyl, F' being other than Thr-NH2 when E' is THr, or a derivative thereof bearing a sugar residue preparable by an Amadori or Heyns rearrangement from a natural or synthetically accessible mono-,di- or oligosaccharide, or of formulae V to VIII
V
VI
VII
VIII
in free form or a pharmaceutically acceptable salt form or complex form to a subject in need of such a treatment.
I
II
III
wherein W is S or (CH2)s where s is 0, 1 or 2;
one of X and Z is S and the other is S or CH2;
Y is S or (CH2)t where t is 0, 1 or 2;
each of R1 and R2 independently of the other, is C1-5 alkyl, benzyl, benzyl having one or two C1-5 al-kyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituents, or C1-5 alkyl substituted with a 5- or 6- membered hete-rocyclic ring;
R3 is 3-indolylmethyl, either unsubstituted or having C1-5 alkyl, C1-5 alkoxy or halogen substitution;
R4 is C1-5 alkyl, C1-5 hydroxyalkyl, benzyl, carboxy-(C1-5 alkyl), amino (C1-5 alkyl) or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro and/or C1-5 alkoxy substituent;
R5 is C1-5 alkyl, benzyl, or benzyl having a C1-5 alkyl, halogen, hydroxy, amino, nitro, and/or C1-5 alkoxy substituent, of formula IV
wherein A, A', Y1 and Y2 are as defined in Claim 7 B is B' where B' is Phe or Tyr C is C' where C' is -(D)Trp-D is D' where D' is Lys, MeLys or Lys(.epsilon.-Me) E is E' where E' is the residue of a natural .alpha.-amino-acid other than Val F is F' where F' is a group of formula wherein R11 is hydrogen or methyl, R13 is -CH2OH or represents the substituent attached to the .alpha.-carbon atom of a natural .alpha.-amino-acid (including hydrogen) and X1 is a group of formula -COOR7, -CH2OR10 or wherein R7 is hydrogen or C1-3 alkyl, R10 is hydrogen or the residue of a pysiologically-acceptable physiologically hydrolysable ester R14 is hydrogen or C1-3 alkyl, and R15 is hydrogen, C2-3 alkyl, phenyl or C1-7 phenylalkyl, F' being other than Thr-NH2 when E' is THr, or a derivative thereof bearing a sugar residue preparable by an Amadori or Heyns rearrangement from a natural or synthetically accessible mono-,di- or oligosaccharide, or of formulae V to VIII
V
VI
VII
VIII
in free form or a pharmaceutically acceptable salt form or complex form to a subject in need of such a treatment.
10. The use according to Claim 9, wherein the somatostatin analogue is the compound IVa or the compound IVb in free form or pharmaceutically acceptable salt form or complex form.
11. Use of a somatostatin analogue of any one of formulae I to VIII as defined in Claim 9 together with a dopamine agonist in the treatment of breast cancer.
12. The use according to Claim 11, wherein the dopamine ago-nist is N, N-diethyl-N'-[(3a-4a.alpha., 10.alpha..beta.)-1,2,3,4,4a,5,10,10a-octahydro-6-hydroxy-1-propyl-3-benzoquinolinyl], a compound of formula I'a wherein R? is C1-4 alkyl R? is H or C1-4 alkyl, and R? is -NHSO2N(C1-4 alkyl)2 or bromocriptine, in free base form or in pharmaceutically acceptable acid addition salt form.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8716326 | 1987-07-10 | ||
| GB878716324A GB8716324D0 (en) | 1987-07-10 | 1987-07-10 | Organic compounds |
| GB878716326A GB8716326D0 (en) | 1987-07-10 | 1987-07-10 | Organic compounds |
| GB8716324 | 1987-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1328402C true CA1328402C (en) | 1994-04-12 |
Family
ID=26292476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000571592A Expired - Lifetime CA1328402C (en) | 1987-07-10 | 1988-07-08 | Somatostatins |
Country Status (27)
| Country | Link |
|---|---|
| US (2) | US5753618A (en) |
| JP (1) | JP2578477B2 (en) |
| AU (1) | AU618270B2 (en) |
| BE (1) | BE1001079A4 (en) |
| CA (1) | CA1328402C (en) |
| CH (1) | CH677449A5 (en) |
| CS (1) | CS411591A3 (en) |
| CY (2) | CY1631A (en) |
| DE (2) | DE3845000C2 (en) |
| DK (2) | DK174125B1 (en) |
| ES (1) | ES2010561A6 (en) |
| FI (1) | FI93308C (en) |
| FR (1) | FR2617714B1 (en) |
| GB (1) | GB2208200B (en) |
| GR (1) | GR1000172B (en) |
| HK (1) | HK16492A (en) |
| HU (1) | HU203480B (en) |
| IE (1) | IE61908B1 (en) |
| IL (1) | IL87044A0 (en) |
| LU (1) | LU87268A1 (en) |
| MY (2) | MY103746A (en) |
| NL (1) | NL194823C (en) |
| NO (1) | NO179359C (en) |
| NZ (1) | NZ225340A (en) |
| PT (1) | PT87957B (en) |
| SE (2) | SE503191C2 (en) |
| SG (1) | SG3692G (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8813339D0 (en) * | 1988-06-06 | 1988-07-13 | Sandoz Ltd | Improvements in/relating to organic compounds |
| PH30995A (en) * | 1989-07-07 | 1997-12-23 | Novartis Inc | Sustained release formulations of water soluble peptides. |
| US5538739A (en) * | 1989-07-07 | 1996-07-23 | Sandoz Ltd. | Sustained release formulations of water soluble peptides |
| US5626945A (en) * | 1993-09-28 | 1997-05-06 | International Paper Company | Repulpable, water repellant paperboard |
| US6355613B1 (en) * | 1996-07-31 | 2002-03-12 | Peptor Limited | Conformationally constrained backbone cyclized somatostatin analogs |
| AU3215597A (en) * | 1996-08-30 | 1998-03-19 | Biomeasure Incorporated | Method of inhibiting fibrosis with a somatostatin agonist |
| ES2167189B1 (en) * | 1999-12-17 | 2003-04-01 | Lipotec Sa | STABLE PHARMACEUTICAL FORMULATION FOR INTRAVENOUS OR INTRAMUSCULAR ADMINISTRATION, OF PEPTIDIC ACTIVE PRINCIPLES |
| US6316414B1 (en) | 2000-07-31 | 2001-11-13 | Dabur Research Foundation | Somatostatin analogs for the treatment of cancer |
| DE60231403D1 (en) * | 2001-06-08 | 2009-04-16 | Sod Conseils Rech Applic | CHIMERO SOMATOSTATIN DOPAMINE ANALOGUE |
| TWI287986B (en) * | 2001-12-13 | 2007-10-11 | Novartis Ag | Use of Epothilones for the treatment of the carcinoid syndrome |
| US20030207811A1 (en) * | 2002-05-03 | 2003-11-06 | Schrier Bruce K. | Method of treating retinopathy of prematurity using somatostatin analogs |
| ES2383303T3 (en) | 2005-11-10 | 2012-06-20 | Chemi S.P.A. | Formulations of somatostatin analogue growth hormone prolonged release inhibitors |
| CA2647986C (en) * | 2006-03-31 | 2014-07-08 | Erasmus University Medical Center Rotterdam | Compositions for tumor growth control |
| US9517240B2 (en) | 2006-09-26 | 2016-12-13 | The Regents Of The University Of California | Methods and compositions for cancer prevention and treatment |
| US20100160275A1 (en) * | 2006-09-26 | 2010-06-24 | Lee Eva Y H P | Methods and compositions for cancer prevention and treatment |
| US20090325863A1 (en) * | 2008-06-13 | 2009-12-31 | Kleinberg David L | Somatostatin analogs and IGF-I inhibition for breast cancer prevention |
| GB201016433D0 (en) | 2010-09-30 | 2010-11-17 | Q Chip Ltd | Apparatus and method for making solid beads |
| GB201016436D0 (en) | 2010-09-30 | 2010-11-17 | Q Chip Ltd | Method of making solid beads |
| US8629103B2 (en) * | 2010-12-02 | 2014-01-14 | New York University | Treatment of non-proliferative cystic disease of the breast |
| US10512669B2 (en) * | 2011-06-02 | 2019-12-24 | The Regents Of The University Of California | Blockade of inflammatory proteases with cyclic peptides |
| TWI523863B (en) | 2012-11-01 | 2016-03-01 | 艾普森藥品公司 | Somatostatin-dopamine chimeric analogs |
| CN104768565B (en) | 2012-11-01 | 2017-04-26 | 益普生制药股份有限公司 | Somatostatin analogs and dimers thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH621770A5 (en) * | 1976-02-23 | 1981-02-27 | Sandoz Ag | Process for the preparation of novel peptide compounds |
| EP0000053B1 (en) * | 1977-06-08 | 1981-05-27 | Merck & Co. Inc. | Somatostatin analogs, process for their preparation and pharmaceutical compositions containing them |
| LU78191A1 (en) * | 1977-09-28 | 1979-05-25 | Ciba Geigy Ag | METHOD FOR PRODUCING NEW CYCLOPEPTIDES |
| US4328214A (en) * | 1979-07-04 | 1982-05-04 | Ciba-Geigy Corporation | Cyclopeptides and pharmaceutical preparations thereof and also processes for their manufacture |
| US4900730A (en) * | 1981-01-14 | 1990-02-13 | Toyo Jozo Co., Ltd. | Preparation which promotes the absorption of peptides |
| IE52535B1 (en) * | 1981-02-16 | 1987-12-09 | Ici Plc | Continuous release pharmaceutical compositions |
| JPS57188526A (en) * | 1981-05-14 | 1982-11-19 | Takeda Chem Ind Ltd | Peptide-containing pharmaceutical preparation |
| US4374060A (en) * | 1981-07-15 | 1983-02-15 | Merck & Co., Inc. | Process for the preparation of cyclic hexapeptide |
| DE3264693D1 (en) * | 1981-12-24 | 1985-08-14 | Ciba Geigy Ag | Cyclic octapeptides and pharmaceutical compositions thereof, and processes for their production and use |
| US4522813A (en) * | 1983-10-27 | 1985-06-11 | Merck & Co., Inc. | Cyclic hexapeptide somatostatin analogs |
| HU195810B (en) * | 1984-12-24 | 1988-07-28 | Sandoz Ag | Process for preparing new 8alpha-acyl-amino-ergoline derivatives and pharmaceutical compositions containing such compounds |
| US4650787A (en) * | 1985-04-25 | 1987-03-17 | Schally Andrew Victor | Biologically active octapeptides |
| US4725577A (en) * | 1985-04-25 | 1988-02-16 | Administrators Of The Tulane Educational Fund | Biologically active lysine containing octapeptides |
| ZW14486A1 (en) * | 1985-07-29 | 1986-10-22 | Smithkline Beckman Corp | Pharmaceutical dosage unit |
| GR862206B (en) * | 1985-09-12 | 1986-12-31 | Univ Tulane | Therapeutic somatostatin analogs |
| JPH085913B2 (en) * | 1985-09-12 | 1996-01-24 | ザ・アドミニストレ−タ−ズ・オブ・ザ・ツ−レイン・エデユケイシヨナル・フアンド | Therapeutic somatostatin congeners |
| NL8701143A (en) * | 1986-05-27 | 1987-12-16 | Sandoz Ag | PHARMACEUTICAL PREPARATIONS. |
| HU906340D0 (en) * | 1986-10-13 | 1991-04-29 | Sandoz Ag | Synthesis in solid phase for producing peptonic alcohols |
| AU639371B2 (en) * | 1987-07-10 | 1993-07-22 | Novartis Ag | Method of treating breast cancer |
| US5187150A (en) * | 1987-10-14 | 1993-02-16 | Debiopharm S.A. | Polyester-based composition for the controlled release of polypeptide medicinal substances |
| AU2284588A (en) * | 1988-09-26 | 1990-03-29 | Sandoz Ltd. | Improvements in or relating to organic compounds |
| MY106120A (en) * | 1988-12-05 | 1995-03-31 | Novartis Ag | Peptide derivatives. |
| US5384309A (en) * | 1989-07-17 | 1995-01-24 | Genentech, Inc. | Cyclized peptides and their use as platelet aggregation inhibitors |
| JPH0532696A (en) * | 1990-09-28 | 1993-02-09 | Takeda Chem Ind Ltd | Parathyroid hormone derivative |
-
1988
- 1988-07-04 DE DE3845000A patent/DE3845000C2/en not_active Expired - Lifetime
- 1988-07-04 DE DE3822557A patent/DE3822557C2/en not_active Expired - Lifetime
- 1988-07-05 CH CH2556/88A patent/CH677449A5/de not_active IP Right Cessation
- 1988-07-06 GB GB8816024A patent/GB2208200B/en not_active Expired - Lifetime
- 1988-07-07 MY MYPI88000750A patent/MY103746A/en unknown
- 1988-07-07 MY MYPI93000569A patent/MY109309A/en unknown
- 1988-07-08 GR GR880100458A patent/GR1000172B/en not_active IP Right Cessation
- 1988-07-08 FR FR888809439A patent/FR2617714B1/en not_active Expired - Lifetime
- 1988-07-08 IE IE209188A patent/IE61908B1/en not_active IP Right Cessation
- 1988-07-08 AU AU18893/88A patent/AU618270B2/en not_active Expired
- 1988-07-08 NZ NZ225340A patent/NZ225340A/en unknown
- 1988-07-08 DK DK198803854A patent/DK174125B1/en not_active IP Right Cessation
- 1988-07-08 ES ES8802161A patent/ES2010561A6/en not_active Expired
- 1988-07-08 NL NL8801734A patent/NL194823C/en not_active IP Right Cessation
- 1988-07-08 NO NO883054A patent/NO179359C/en not_active IP Right Cessation
- 1988-07-08 IL IL87044A patent/IL87044A0/en not_active IP Right Cessation
- 1988-07-08 FI FI883261A patent/FI93308C/en active IP Right Grant
- 1988-07-08 HU HU883604A patent/HU203480B/en unknown
- 1988-07-08 SE SE8802569A patent/SE503191C2/en not_active IP Right Cessation
- 1988-07-08 PT PT87957A patent/PT87957B/en not_active IP Right Cessation
- 1988-07-08 CA CA000571592A patent/CA1328402C/en not_active Expired - Lifetime
- 1988-07-08 LU LU87268A patent/LU87268A1/en unknown
- 1988-07-09 JP JP63171703A patent/JP2578477B2/en not_active Expired - Lifetime
- 1988-07-11 BE BE8800803A patent/BE1001079A4/en not_active IP Right Cessation
-
1991
- 1991-12-27 CS CS914115A patent/CS411591A3/en unknown
-
1992
- 1992-01-13 SG SG36/92A patent/SG3692G/en unknown
- 1992-02-27 HK HK164/92A patent/HK16492A/en not_active IP Right Cessation
- 1992-07-10 CY CY1631A patent/CY1631A/en unknown
- 1992-07-10 CY CY1632A patent/CY1632A/en unknown
-
1993
- 1993-04-20 SE SE9301290A patent/SE9301290A0/en not_active Application Discontinuation
-
1995
- 1995-06-06 US US08/471,706 patent/US5753618A/en not_active Expired - Lifetime
-
1998
- 1998-02-11 US US09/022,079 patent/US6066616A/en not_active Expired - Fee Related
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2001
- 2001-04-04 DK DK200100558A patent/DK174476B1/en not_active IP Right Cessation
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