WO2008106721A1 - Compositions and methods for delivery of anti-cancer agents - Google Patents
Compositions and methods for delivery of anti-cancer agents Download PDFInfo
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- WO2008106721A1 WO2008106721A1 PCT/AU2008/000276 AU2008000276W WO2008106721A1 WO 2008106721 A1 WO2008106721 A1 WO 2008106721A1 AU 2008000276 W AU2008000276 W AU 2008000276W WO 2008106721 A1 WO2008106721 A1 WO 2008106721A1
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- cyclodextrin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/716—Glucans
- A61K31/724—Cyclodextrins
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- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/40—Cyclodextrins; Derivatives 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
Definitions
- the present invention relates to pharmaceutical compositions for the treatment of cancer.
- the present invention relates to compositions comprising 5- fluorouracil, cyclodextrin and folinic acid and their use in the treatment of cancer.
- Chemotherapy plays a key role in the treatment of a range of cancers including colo-rectal, breast and liver cancer.
- One drug frequently used in chemotherapy is 5- fluorouracil (5-FU) which is known to be a particularly potent anti-cancer agent.
- 5-FU can be used independently in chemotherapeutic applications, typically the drug is used in combination with folinic acid as its calcium salt (leucovorin) (D. B. Longley, D. P. Harkin, and P. G. Johnston, "5-Fluorouracil: mechanisms of action and clinical strategies", Nature Reviews: Cancer, Vol.3, 330-338, 2003).
- the presence of folinic acid synergises the effect of 5-FU by specifically enhancing the capacity of 5-FU to inhibit thymidylate synthase.
- 5-FU and folinic acid In clinical use, the administration of 5-FU and folinic acid to a patient is performed in two separate injections and the optimal synergistic effect of the combination is not realised.
- an injectable solution of 5-FU is delivered intravenously at a pH of 9 which results in severe and painful vein damage (phlebitis) in the patient. Consequently a central line is typically used for delivery of 5-FU and this is a significant disadvantage of the present administration technique.
- 5-FU is formulated into a cream for topical use in the treatment of skin cancer, extensive inflammation and pain has been found to occur.
- compositions containing both 5-FU and folinic acid have been prepared at more physiologically acceptable pH levels. However these compositions have been shown to be unacceptable owing to the tendency of 5-FU to precipitate out of solution when a clinically appropriate concentration of 5-FU is used. Accordingly there is a need for a composition in which 5-FU and folinic acid can be co-administered at a physiologically acceptable pH at concentrations that are appropriate for clinical use.
- the present inventors have surprisingly found that in the presence of a cyclodextrin derivative, a homogeneous solution of 5-FU and folinic acid can be prepared at a physiological pH which minimises harmful side effects.
- the present invention provides a composition comprising:
- a cyclodextrin or a pharmaceutically acceptable salt or derivative thereof may be present in a concentration sufficient to prevent the 5-FU or salt or analogue thereof from precipitating out of solution.
- the pH of the composition may be about 5 to about 9, or about 6.5 to about 8 or about 7.0 to about 7.8.
- the cyclodextrin or salt or derivative thereof may be present at a concentration of between about 0.1 and about 30% or between about 1 and about 30% on a w/v basis, or between about 1 and about 300mg/ml or between about 10 and about 300mg/ml.
- the 5-FU or salt or analogue thereof may be present at a concentration of between about 1 and about 50mg/ml or between about 5 and about
- the folinic acid or salt thereof may be present at a concentration of between about 0.1 and about 25mg/ml or between about 0.1 and about 15mg/ml or between about 0.1 and about 12mg/ml.
- the composition may be a composition for the treatment and/or prevention of cancer.
- the 5-FU and cyclodextrin may be present in the composition in the form of a non- covalent complex, i.e. the 5-FU may be complexed to the cyclodextrin but not covalently bound thereto.
- the folinic acid and cyclodextrin may be present in the composition in the form of a non-covalent complex, i.e. the folinic acid may be complexed to the cyclodextrin but not covalently bound thereto.
- the composition may comprise one or more pharmaceutically acceptable carrier, diluent and/or adjuvant.
- the carrier may be an aqueous carrier, e.g. saline solution.
- the composition may be an aqueous composition.
- the analogue of 5-FU may be for example 5-fluoro-2-deoxyuridine (5-FUdr).
- the composition may be in the form of a solution, e.g. an aqueous solution.
- a solution e.g. an aqueous solution.
- Each of the components (i, ii, iii above) may be in solution in the composition.
- the composition may contain no solid matter. Thus each of the components (i, ii, iii above) may be completely in solution in the composition.
- the composition may be a synergistic composition.
- the pharmaceutically acceptable salt of folinic acid may be calcium folinate (leucovorin) or sodium folinate.
- the salt may be in the form of a hydrate, for example calcium folinate pentahydrate.
- the folinic acid, or pharmaceutically acceptable salt thereof may be present in either of its enantiomeric forms, or as a racemic mixture. It may be the 6(S) diastereomer or the 6(R) diastereomer (wherein the glutamic acid residue of the folinic acid or folinate is in the L form), or it may be a mixture of these in any desired ratio, such as about 1 :1 or some other ratio. It may be a mixture of these in which the 6(S) isomer is enriched. It may be between about 51 and about 100% enriched, or between about 55 and 99%, 55 and
- the cyclodextrin may be ⁇ -cyclodextrin, ⁇ -cyclodextrin, or a derivative or salt thereof, or may be a ⁇ -cyclodextrin, or a derivative or salt thereof.
- the cyclodextrin may be a cyclodextrin sulfate, or a salt thereof.
- the cyclodextrin is a sulfated sodium salt of ⁇ -cyclodextrin, optionally a polysulfated sodium salt or a mixture of sulfated sodium salts with differing degrees of sulfation.
- the cyclodextrin is a hydroxyalkyl ⁇ - cyclodextrin, for example hydroxypropyl- ⁇ -cyclodextrin.
- the cyclodextrin may be a mixture of different types of cyclodextrins, for example a mixture of hydroxyalkyl ⁇ -cyclodextrin and sulfated ⁇ -cyclodextrin.
- composition comprising, or consisting of:
- the cyclodextrin may be selected from the group consisting of: a hydroxyalkyl ⁇ - cyclodextrin and a sulfated ⁇ -cyclodextrin, or a combination thereof.
- the hydroxyalkyl ⁇ -cyclodextrin may be hydroxypropyl- ⁇ -cyclodextrin, or more specifically 2- hydroxypropyl- ⁇ -cyclodextrin.
- a composition comprising, or consisting of:
- 5-fluorouracil (5-FU), or a pharmaceutically acceptable salt or analogue thereof in a concentration of between about 1 and about 50mg/ml;
- composition comprising, or consisting of:
- 5-fluorouracil (5-FU), or a pharmaceutically acceptable salt or analogue thereof in a concentration of between about 10 and about 20mg/ml;
- a pharmaceutically acceptable carrier wherein (i), (ii), and (iii) are dissolved in (iv).
- the cyclodextrin may be selected from the group consisting of: a hydroxyalkyl ⁇ - cyclodextrin and a sulfated ⁇ -cyclodextrin, or a combination thereof.
- the hydroxyalkyl ⁇ -cyclodextrin may be hydroxypropyl- ⁇ -cyclodextrin.
- the pharmaceutically acceptable carrier may be saline solution.
- composition comprising, or consisting of:
- composition comprising, or consisting of:
- composition comprising, or consisting of:
- the ⁇ -cyclodextrin sulfate salt may comprise between 6 and 14 sulfate groups.
- the pharmaceutically acceptable carrier may be 0.9% saline solution.
- the ⁇ -cyclodextrin sulfate salt may be a sodium salt.
- composition comprising, or consisting of:
- the pharmaceutically acceptable carrier may be 0.9% saline solution.
- composition comprising, or consisting of:
- a pharmaceutically acceptable carrier wherein (i), (ii) and (iii) are dissolved in (iv).
- the pharmaceutically acceptable carrier may be 0.9% saline solution.
- the heptakis(6-O-sulfo)- ⁇ -cyclodextrin salt may be a sodium salt.
- a process for making a composition comprising combining: (i) 5-fluorouracil (5-FU), or a pharmaceutically acceptable salt or analogue thereof;
- the concentrations and identities of the components may be as described above in the first aspect of this invention.
- the process may comprise combining (i) with (iii), and then adding (ii).
- adding (ii) it may be in solution, optionally in aqueous solution.
- the process may also comprise sterilising the composition.
- the sterilising may comprise filtration (e.g. microfiltration), UV radiation, gamma radiation, some other form of sterilising radiation or some other form of sterilising.
- the sterilising may be conducted so as not to damage or degrade any of components (i) to (iii) above.
- sterilising radiation UV, gamma or other
- the composition may be a composition for the prevention and/or treatment of cancer.
- (i) and (iii) are combined in the presence of a carrier, optionally an aqueous carrier, to form a mixture, and (ii) is added to the mixture.
- the mixture may be a solution, optionally an aqueous solution.
- the carrier may be a solvent, optionally an aqueous solvent e.g. saline solution, (i) and (iii) may, independently, be partially soluble in the carrier, optionally sparingly soluble.
- the mixture may be agitated to at least partially dissolve (i) and (iii) in the carrier.
- the dissolution may comprise formation of a non- covalent complex between (i) and (iii).
- the agitation may comprise stirring, swirling, shaking, sonicating or a combination of two or more thereof.
- the agitation may be conducted at elevated temperature, e.g. between about 30 and about 6O 0 C.
- the composition may be agitated following addition of (ii).
- the agitation may be as described above.
- a process for making a composition comprising: • combining 5-fluorouracil (5-FU), or a pharmaceutically acceptable salt or analogue thereof, and a cyclodextrin or a pharmaceutically acceptable salt or derivative thereof in the presence of an aqueous solvent to form a mixture;
- the step of adding the aqueous solution may be conducted so as to form a composition in which the 5-FU or salt or analogue thereof, the cyclodextrin or salt or derivative thereof and the folinic acid or salt thereof are all in solution in the composition, optionally such that no solid matter is present the composition.
- the composition may be optionally agitated, and optionally heated, following the step of adding the aqueous solution.
- the agitation of the composition may be sufficient to render the composition homogeneous or to ensure that all of the components of the composition are completely in solution.
- a process for making a composition comprising:
- the present invention provides a method for the treatment or prevention of cancer in a patient in need of said treatment or prevention, said method comprising administration of a therapeutically effective amount of the composition of the first aspect.
- the present invention provides a method for inhibiting the proliferation of cancer cells, said method comprising exposing the cancer cells to the composition of the first aspect.
- the cancer or cancer cells may be primary or secondary and may include one or more of the following: prostate cancer, lung cancer (for example non-small cell lung cancer), colo-rectal cancer (which is to be understood to encompass colon cancer and bowel cancer), cervical cancer, breast cancer, ovarian cancer, gastric cancer, primary hepatoma, skin cancer, pancreatic cancer, cholangiocarcinoma or a cancer of the head or neck, and cancer cells therefrom.
- the skin cancer may be non-melanoma skin cancer.
- the patient may be a mammal, for example a human.
- the term “synergistic” refers to a greater than additive effect that is produced by a combination of folinic acid and 5-FU, which exceeds the effect that would otherwise result from use of the 5-FU and folinic acid alone.
- a “therapeutically effective amount”, as used herein, includes within its meaning a non-toxic but sufficient amount of 5-FU and folinic acid to provide the desired therapeutic effect. The exact amount required will vary from subject to subject depending on factors such as the subject's general health, the subject's age, the subject's gender and the stage and severity of the cancer.
- prevention includes either preventing the onset of clinically evident cancer altogether, or delaying its onset.
- treatment includes partial or total inhibition of cancer growth, as well as partial or total destruction of the cancer cells.
- complex is understood to mean a non-covalent physical interaction between two or more chemical entities.
- fluorodex (abbreviation FD) is understood to mean a composition containing 5-FU and folinic acid salt together with a cyclodextrin or derivative thereof in aqueous solution, as disclosed in the present invention.
- Figure 1 shows the change in pH over time of a solution of the composition of the invention (denoted as FD2), and 5-FU;
- Figure 2 shows the change in absorption at 266 nm of a solution of the composition of the invention (denoted as FD2), and 5-FU;
- Figure 3 shows dose-response curves for 5 carcinoma cell lines treated with increasing concentrations of various 5-FU formulations. After 72 h, cell proliferation was analysed by the MTS assay and normalised to saline control treatments (100% proliferation). # 5-FU, ⁇ 5-FU:FA, A FD45c, ⁇ FD50-7Sc, • FDlOOHPc. Dashed lines represent the IC 50 for each treatment (GraphPad).
- Figure 5 shows fractionated multiple dose tolerance of FDl compared to 5-FU:FA, for Example 6, in which lines indicate mean ⁇ SEM: (A) 20 mg/kg*5; (B) 40 mg/kg> ⁇ 5; (C) 60 mg/kg ⁇ 5 and (D) 80 mg/kg ⁇ 5;
- Figure 6 depicts the efficacy of a composition according to the present invention compared to 5-FU:FA against MDA-MB-231 Xenografts for Example 7:
- compositions and methods of preparation are provided.
- the present invention relates to compositions comprising 5 -FU, or a pharmaceutically acceptable salt or analogue thereof, folinic acid, or a pharmaceutically acceptable salt thereof, and a cyclodextrin, or a pharmaceutically acceptable salt or derivative thereof, which prevents 5-FU from precipitating out of solution at a pH of about 5 to about 9.
- the invention also contemplates use of the compositions for the treatment of cancer.
- an analogue of 5-FU is a compound having comparable or similar pharmacological activity, particularly in a human patient, to 5-FU, and similar solubility/complexation properties, so that in a composition according to the present invention, when made with the analogue, the analogue remains in solution.
- reference to 5-FU will be taken to include a corresponding reference to a pharmaceutically acceptable salt or analogue thereof
- reference to folinic acid will be taken to include a corresponding reference to a pharmaceutically acceptable salt or derivative thereof
- reference to cyclodextrin will be taken to include a corresponding reference to a pharmaceutically acceptable salt or derivative thereof, unless the contrary is indicated or implied.
- compositions of the invention provide the following advantages over current methods of cancer treatment using 5-FU and folinic acid:
- cyclodextrin and 5 -FU may form a complex in solution.
- This complex may be a "host-guest” or "inclusion complex”.
- the complex may result in the otherwise insoluble 5 -FU being soluble in aqueous solution at pH values of between about 5 to about 8.
- the cyclodextrin and 5-FU may be associated through some other form of non-covalent interaction.
- Cyclodextrin and folinic acid may also form a complex in solution. This complex may be a "host-guest" or "inclusion complex”.
- the 5-FU present in the compositions of the invention may be present as a pharmaceutically acceptable salt.
- pharmaceutically acceptable salt it is meant those salts of 5-FU which are suitable for use in contact with the tissues of humans and other animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio.
- Pharmaceutically acceptable salts are well known in the art.
- suitable pharmaceutically acceptable salts of 5-FU include the sodium salt, which may be obtained from reaction with sodium hydroxide.
- the folinic acid present in the composition may be present as a salt of an alkali metal (e.g. sodium, potassium) or a salt of an alkaline earth metal (e.g. magnesium, calcium). In one embodiment, the folinic acid may be present as calcium folinate.
- Cyclodextrins suitable for use in accordance with the present invention include natural and chemically modified cyclodextrins.
- the cyclodextrin may be an ⁇ - cyclodextrin, a ⁇ -cyclodextrin, a ⁇ -cyclodextrin, or a derivative or pharmaceutically acceptable salt thereof. Mixtures of any two or more of the above cyclodextrins are also contemplated in the compositions of the invention.
- R may be a hydrocarbon group having between 1 and 20 carbon atoms, or between 1 and 15, or between 1 and 10, or between 1 and 9, or between 1 and 8, or between 1 and 7, or between 1 and 6, or between 1 and 5, or between 1 and 4 carbon atoms, for example methyl, allyl, ethyl, propyl, isopropyl, propargyl, butyl, but-2-enyl, secbutyl, pentyl, 3-methyl-pent-2-enyl, hexyl, heptyl, octyl, nonyl, decyl etc.
- the hydrocarbon group is a branched or straight chain alkyl group.
- the hydrocarbon group may be optionally substituted with one or more halo groups and/or one or more hydroxy groups, such that R is a halo-substituted hydrocarbon or a hydroxy- substituted hydrocarbon, for example a hydroxyalkyl group.
- hydroxyalkyl groups include, but are not limited to -CH 2 CH(OH)CH 3 , -CH 2 CH 2 OH, - CH 2 CH 2 CH 2 (OH)CH 3 , -CH(OH)CH 2 CH 2 CH 3 and -CH(OH)CH 2 CH 2 CH 2 CH 3 .
- the cyclodextrin is a hydroxyalkyl ⁇ -cyclodextrin, for example hydroxypropyl- ⁇ -cyclodextrin.
- cyclodextrins also include anionic cyclodextrins such as carboxymethyl cyclodextrins, cyclodextrin sulfates, cyclodextrin sulfonates, cyclodextrin phenolates and cyclodextrin phosphates, or mixtures thereof.
- the cyclodextrin derivative may be a sulfated ⁇ : , ⁇ -, or ⁇ - cyclodextrin, or a salt thereof, for example a sodium salt.
- the sulfated cyclodextrin may be polysulfated or comprise a mixture of sulfate and hydroxy groups.
- the sulfated cyclodextrin is a ⁇ -cyclodextrin comprising between 3 and 20, or between 3 and 18, or between 4 and 16, or between 4 and 14, or between 5 and 13, or between 5 and 12, or between 5 and 11, or between 6 and 10, or between 7 and 9, or between 9 and 12, or between 5 and 10 sulfate groups.
- the sulfate groups may be present as salts, for example sodium salts.
- the cyclodextrin derivative is heptakis(6-0-sulfo)- ⁇ -cyclodextrin, or a salt thereof.
- cyclodextrin derivatives which may be used include sulfoether cyclodextrins such as sulfoalkylether cyclodextrins, wherein the alkyl group comprises between 1 and 15 carbon atoms, or between 1 and 12, or between 1 and 10, or between 1 and 9, or between 1 and 8, or between 1 and 7, or between 1 and 6, or between 1 and 5, or between 1 and 4 carbon atoms, for example sulfobutyl ⁇ -cyclodextrin (Captisol ).
- the alkyl group may be of the formula -(CH 2 ) n -, wherein n is a number between 1 and 8, or between 1 and 7, or between 1 and 6, or between 1 and 5 or between 1 and 4.
- cyclodextrin derivatives that may be suitable for use in the compositions of the present invention are those disclosed in "Chemical Reviews: Cyclodextrins", V. T. D'Souza and K. B. Lipkowitz, Vol. 98, No. 5 (American Chemical Society, 1998), which is incorporated herein by reference.
- the degree of substitution of the cyclodextrin may vary. Suitable cyclodextrins therefore include for example those cyclodextrins wherein one, or some, or all of the hydroxy groups are substituted.
- the degree of substitution may be between about 1 and 20, or between about 5 and 20, 10 and 20, 1 and 10, 1 and 5, 5 and 15, 5 and 10 or 10 and 15, e.g. about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20.
- the cyclodextrin may be a mixture of cyclodextrins of different degrees of substitution.
- the average degree of substitution may be between about 1 and 20, or between about 5 and 20, 10 and 20, 1 and 10, 1 and 5, 5 and 15, 5 and 10 or 10 5 and 15, e.g. about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20.
- the average degree of substitution may be between about 4 and about 12, or between about 5 and about 10, or between about 5 and about 9, or between about 6 and about 8, or about 7.
- the amount of cyclodextrin used in the compositions of the invention is ano amount sufficient to ensure that the 5 -FU present in the compositions is maintained in solution.
- the molar ratio of CD:5-FU may be between about 1:10 and about 3: 1, or between about 1 :10 and 1 :1, 1:10 and 1 :2, 1 :10 and 1 :5, 1 :5 and 3:1, 1:5 and 1 :1, 1 :3 and 3:1, 1:8 and 3:1, 1:8 and 2:1, 1:8 and 1:1, 1:8 and 1:2, 1 :8 and 1:5, 1:3 and 2:1, 1:3 and 1:1, 1:3 and 1.1 :1, 1:3 and 1.2:1, 1:3 and 1.3:1, 1:3 and 1.4:1, 1 :3 and 1.5:1, 1:3 and 2:1,s 1:3 and 2.5:1, 1:2.5 and 3:1, 1:2 and 3:1, 1:1.5 and 3:1, 1 :1.4 and 3:1, 1 :1.3 and 3:1, 1 :1.2 and 3:1, 1 :
- the composition may be mildly or moderately acidic, neutral or mildly or moderately basic.
- the pH of the composition may be between about 5.0 and about 9.0, or between about 5.0 and about 8.0, or between about 5.0 and about 7.0, or between about 5.5 and about 8.0, or between about 6.0 and about 8.0, or between about 6.5 and about5 8.0, or between about 7.0 and about 8.0, or between 7.5 and about 8.0, or between about 7.0 and about 9.0, or between about 7.5 and 7.8, or between about 7.5 and about 7.7, or between about 7.6 and about 7.7, or between about 6.7 and about 7.7, or between about 6.8 and about 7.6, or between about 7.0 and.
- theo pH may be about 5.0, 5.1, 5.3, 5.5, 5.7, 5.9, 6.1, 6.3, 6.5, 6.7, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9 or 9.0.
- the composition of the invention may be prepared by mixing solid 5-FU (15mg), saline (0.9%, 0.87ml), sodium hydroxide solution (0.9M, 30 ⁇ L) and a cyclodextrin, (e.g. ⁇ -cyclodextrin sulfated sodium salt as a mixture of 9-12 sulfates per cyclodextrin residue:45mg).
- a cyclodextrin e.g. ⁇ -cyclodextrin sulfated sodium salt as a mixture of 9-12 sulfates per cyclodextrin residue:45mg.
- the resulting suspension is sonicated at about 30 to 60 °C until almost all of the 5-FU has dissolved.
- a solution of folinic acid for example, calcium folinate (lmg: lOmg/mL) in 0.9% saline is then added, and the mixture subjected to sonication at 30 to 60 °C until a homogenous solution is formed.
- the temperature of the sonication may be between about 30 and 50, 30 and 40, 40 and 60, 40 and 60 or 40 and 5O 0 C, e.g. about 30, 35, 40, 45, 50, 55 or 6O 0 C, or may be above 6O 0 C or below 3O 0 C.
- the homogeneous solution is cooled and allowed to stand at room temperature for about 1 hour.
- the solution may then be filtered under aseptic conditions and stored at room temperature in the absence of light.
- the pH of the solution may be between about 7.3 and about 7.5.
- the composition of the invention may be prepared by dissolving a cyclodextrin (e.g. ⁇ -cyclodextrin sulfated sodium salt or 2-hydroxypropyl- ⁇ - cyclodextrin) in water, and adding a solution of 5-FU (for example 5-fluorouracil Injection BP, 50mg/mL) and a solution of folinic acid (for example about 200 ⁇ L of a lOmg/mL solution).
- 5-FU for example 5-fluorouracil Injection BP, 50mg/mL
- folinic acid for example about 200 ⁇ L of a lOmg/mL solution.
- 300 ⁇ L of the above solution may be used per mL of formulation to give a final concentration of 15 mg/mL of 5-FU.
- the resulting solution is agitated to facilitate mixing.
- Acid for example HCl
- the solution may then be filtered under aseptic conditions and stored at room temperature in the absence of light.
- Lyophilized formulations have disadvantages with respect to the liquid formulation. The freeze-dried formulation may require extensive sonication and extra preparation by medical staff.
- compositions and methods of administration are useful in the treatment of cancer in a patient, by administering a therapeutically effective amount of composition to a subject.
- compositions and methods of the present invention are particularly useful for treating include primary or secondary cancers for example, prostate cancer, lung cancer (for example non-small cell lung cancer), cervical cancer, breast cancer, ovarian cancer, gastric cancer, upper GI cancers, primary hepatoma, pancreatic cancer, cholangiocarcinoma, colo-rectal cancer (which is to be understood to encompass colon cancer and bowel cancer), pancreatic cancer, head and neck cancer, breast cancer and skin cancer, for example non-melanoma skin cancer.
- primary or secondary cancers for example, prostate cancer, lung cancer (for example non-small cell lung cancer), cervical cancer, breast cancer, ovarian cancer, gastric cancer, upper GI cancers, primary hepatoma, pancreatic cancer, cholangiocarcinoma, colo-rectal cancer (which is to be understood to encompass colon cancer and bowel cancer), pancreatic cancer, head and neck cancer, breast cancer and skin cancer, for example non-melanoma skin cancer.
- compositions are administered to a patient already suffering
- compositions for use in accordance with the methods of the present invention may be prepared according to methods and procedures that are known to those of ordinary skill in the art, and accordingly may include a pharmaceutically acceptable carrier, diluent and/or adjuvant.
- a pharmaceutically acceptable carrier diluent and/or adjuvant.
- the diluents, adjuvants and excipients must be "acceptable” in terms of being compatible with the other components of the composition, and not deleterious to the recipient thereof.
- compositions may be administered by standard routes.
- the compositions may be administered intravenously, intraperitoneally, intraarterially, or topically. They may also be administered intramuscularly, subcutaneously or transdermally (e.g. by means of a patch). Administration may be systemic, regional or local.
- the particular route of administration to be used in any given circumstance will depend on a number of factors, including the. type of cancer being treated, the severity and extent of the cancer, the required dosage of 5-FU and folinic acid to be delivered and any potential side-effects.
- Examples of pharmaceutically acceptable carriers or diluents are demineralised or distilled water, BP or USP water, saline solution, Ringer's solution, glucose solution, vegetable based oils such as peanut oil, safflower oil, olive oil, cottonseed oil, maize oil, sesame oils such as peanut oil, safflower oil, olive oil, cottonseed oil, maize oil, sesame oil, arachis oil or coconut oil; silicone oils, including polysiloxanes, such as methyl polysiloxane, phenyl polysiloxane and methylphenyl polysolpoxane; volatile silicones; mineral oils such as liquid paraffin, soft paraffin or squalane; cellulose derivatives such as methyl cellulose, ethyl cellulose, carboxymethylcellulose, sodium carboxymethylcellulose or hydroxypropylmethylcellulose; lower alkanols, for example ethanol or iso-propanol; lower aralkanols; lower polyalkylene glyco
- the carrier or carriers will form from 10% to 99.9% by weight of the compositions.
- the compositions of the invention may be in a form suitable for administration by injection, in the form of an ointment, cream or lotion suitable for topical administration, or in a form suitable for administration by injection intravenously, intraperitoneally or intraarterially.
- non-toxic parenterally acceptable diluents or carriers can include; Ringer's solution, isotonic saline, glucose solution, distilled water, phosphate buffered saline, ethanol and 1 ,2 propylene glycol.
- Adjuvants typically include emollients, emulsifiers, thickening agents, preservatives, bactericides and buffering agents. Methods for preparing parenterally administrable compositions are apparent to those skilled in the art, and are described in more detail in, for example, Remington's Pharmaceutical Science, 15th ed., Mack Publishing Company, Easton, Pa., hereby incorporated by reference herein.
- Topical formulations comprise the composition of the invention together with one or more acceptable carriers, and optionally any other therapeutic ingredients.
- Formulations suitable for topical administration include liquid or semi-liquid preparations suitable for penetration through the skin to the site of where treatment is required, such as liniments, lotions, creams, ointments or pastes.
- Lotions according to the present invention include those suitable for application to the skin.
- Lotions or liniments for application to the skin may also include an agent to hasten drying and to cool the skin, such as an alcohol or acetone, and/or a moisturiser such as glycerol, or oil such as castor oil or arachis oil.
- an agent to hasten drying and to cool the skin such as an alcohol or acetone, and/or a moisturiser such as glycerol, or oil such as castor oil or arachis oil.
- compositions may incorporate any suitable surfactant such as an anionic, cationic or non-ionic surfactant such as sorbitan esters or polyoxyethylene derivatives thereof.
- suitable surfactant such as an anionic, cationic or non-ionic surfactant such as sorbitan esters or polyoxyethylene derivatives thereof.
- Suspending agents such as natural gums, cellulose derivatives or inorganic materials such as silicaceous silicas, and other ingredients such as lanolin, may also be included.
- the therapeutically effective dose level for any particular patient will depend upon a variety of factors including: the cancer being treated and the severity of the cancer, the age, body weight, general health, sex and diet of the patient, the time of administration, the route of administration, the duration of the treatment, drugs used in combination or coincidental with the treatment, together with other related factors well known in medicine.
- One skilled in the art would be able, by routine experimentation, to determine an effective, non-toxic amount of agent or compound which would be required to treat applicable diseases and conditions.
- an effective dosage of 5-FU is expected to be in the range of about
- O.OOOlmg to about lOOOmg per kg body weight per 24 hours typically, about O.OOlmg to about 750mg per kg body weight per 24 hours; about O.Olmg to about 500mg per kg body weight per 24 hours; about O.lmg to about 500mg per kg body weight per 24 hours; about O.lmg to about 250mg per kg body weight per 24 hours; about l.Omg to about 250mg per kg body weight per 24 hours.
- an effective dose range isQ expected to be in the range about l.Omg to about 200mg per kg body weight per 24 hours; about l.Omg to about lOOmg per kg body weight per 24 hours; about l.Omg to about 50mg per kg body weight per 24 hours; about l.Omg to about 25mg per kg body weight per 24 hours; about 5.0mg to about 50mg per kg body weight per 24 hours; about 5.0mg to about 20mg per kg body weight per 24 hours; about 5.0mg to about 15mg pers kg body weight per 24 hours; or about 5.0 to lO.Omg/kg body weight per 24 hours.
- an effective dosage of folinic acid is expected to be in the range of about O.OOOlmg to about lOOOmg per kg body weight per 24 hours; typically, about O.OOlmg to about 750mg per kg body weight per 24 hours; about O.Olmg to about 500mg per kg body weight per 24 hours; about O.lmg to about 500mg per kg body weight per 24Q hours; about O.lmg to about 250mg per kg body weight per 24 hours; about l.Omg to about 250mg per kg body weight per 24 hours.
- an effective dose range is expected to be in the range about l.Omg to about 200mg per kg body weight per 24 hours; about l.Omg to about lOOmg per kg. body weight per 24 hours; about l.Omg to about 50mg per kg body weight per 24 hours; about l.Omg to about 25mg per kg body5 weight per 24 hours; about 5.0mg to about 50mg per kg body weight per 24 hours; about
- the 5-FU and the folinic acid may be present in pharmaceutically effective concentrations.
- the 5-FU may be present in0 a concentration of between about 1 and about 50mg/ml, or between about 1 and 40, 1 and 30, 1 and 20, 1 and 10, 1 and 5, 5 and 50, 10 and 50, 20 and 50, 5 and 30, 5 and 20 or 10 and 20mg/ml, e.g. about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 30, 35, 40, 45 or 50mg/ml.
- the folinic acid may be present in a concentration of between about 0.01 and about 25mg/ml, or between about 0.01 and 25, 0.1 and 20, 0.1 and 15, 0.1 and 10, 0.1 and 5, 0.1 and 2, 0.1 and 1, 1 and 25, 5 and 25, 10 and 25, 15 and 25, 1 and 15, 1 and 10, 1 and 5, 0.5 and 5, 0.5 and 2, 5 and 20, 5 and 10 or 10 and 20mg/ml, e.g. about 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 or 25mg/ml.
- the CD may be present in a concentration of between about 1 and about 300mg/ml, or between about 1 and 250, 1 and 200, 1 and 150, 1 and 100, 1 and 50, 1 and 20, 1 and 10, 5 and 300, 5 and 250, 5 and 200, 5 and 150, 5 and 100, 5 and 50, 5 and 20, 5 and 10, 10 and 300, 20 and 300, 30 and 300, 40 and 300, 50 and 300, 100 and 300, 200 and 300, 50 and 200, 5 and 100, 45 and 125, 25 and 100, 50 and 100, or 100 and 200mg/ml, e.g. about 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 150, 200, 250 or 300mg/ml.
- the treatment would be for the duration of the cancer.
- composition may be administered alone or in conjunction with one or more additional agents as part of a combination therapy.
- composition of the invention may be administered together with one or more additional compounds capable of decreasing cell proliferation and invasion and increasing apoptosis in cancer.
- each component of the combination therapy may be administered sequentially in any order, at the same time or at different times, so as to provide the desired effect.
- the components When administered separately, it may be preferred for the components to be administered by the same, route of administration, although it is not necessary for this to be so.
- therapeutic advantages may be realised through combination regimens.
- the respective agents may be administered simultaneously, or sequentially in any order.
- methods of treatment according to the present invention may be applied in conjunction with conventional therapy, such as radiotherapy, chemotherapy, surgery, or other forms of medical intervention.
- composition 5-FU (15 mg), 0.9% Saline (870 ⁇ L), NaOH (30 ⁇ L of 0.9 M) and ⁇ -cyclodextrin sulfated sodium salt (45 mg) were mixed and the suspension was sonicated at 40 - 50 °C until almost all of the 5-FU had dissolved.
- Folinic acid solution (Leucovorin Calcium 10 mg/mL, 100 ⁇ L) was added and the mixture was sonicated at 40 - 50 0 C until a homogeneous solution formed. The mixture was cooled and allowed to stand for 1 h at room temperature. The pH of this solution was 7.4 ⁇ 0.1. The solution was filtered under aseptic conditions and stored at room temperature protected from light. This composition is named FDl. Using this method but increasing the concentration of ⁇ -cyclodextrin sulfated sodium salt to 175 mg/mL produced a composition named FD2.
- composition (2-Hydroxypropyl)- ⁇ -cyclodextrin (100 mg) was dissolved in water (527 ⁇ L).
- 5-FU solution (5-Fluorouracil Injection BP, 50mg/mL, 300 ⁇ L) and lOO ⁇ L of folinic acid solution (Leucovorin Calcium lOmg/mL) were added to the cyclodextrin solution which was agitated to mix.
- HCl (73 ⁇ L of 1.000 M solution) was added to the solution to bring the pH to 7.4 ⁇ 0.1.
- the solution was filtered under aseptic conditions and stored at room temperature, protected from light. This composition is named FDlOOHPc.
- composition Heptakis(6-O-sulfo)- ⁇ -cyclodextrin sodium salt, (50 mg) was dissolved in water (527 ⁇ L).
- 5-FU solution (5-Fluorouracil Injection BP, 50mg/mL, 300 ⁇ L) and lOO ⁇ L of folinic acid solution (Leucovorin Calcium lOmg/mL) were added to the cyclodextrin solution which was agitated to mix.
- HCl (73 ⁇ L of 1.000 M solution) was added to the solution to bring the pH to 7.4 ⁇ 0.1.
- the solution was filtered under aseptic conditions and stored at room temperature, protected from light. This composition is named FD50-7Sc.
- Test samples were manufactured using the FD2 method described above and stored at room temperature.
- 5-FU is known to be light sensitive and therefore the samples were protected from exposure to light.
- the samples were monitored at set time intervals for signs of decomposition using a solution of the equivalent concentration of 5-FU in saline (0.9%) as a control.
- the methods of monitoring the solutions were physical appearance (solid formation etc.), pH and UV-VIS absorbance spectroscopy (266 nm).
- the 5-FU solution was warmed and sonicated to dissolve any solid 5-FU that had precipitated before pH and absorbance readings.
- a pharmaceutical composition suitable for administration by injection may be prepared by mixing 1-5% by weight of the composition of the invention in 10% by volume propylene glycol and water. The solution is sterilised by filtration. The total amount of the composition may vary from patient to patient although a general dose might be about 750 mg of 5-FU, i.e. 50 mL of formulation that might be diluted with 5 % glucose, 0.9 % saline or sterile water to a volume of 100, 500, or 100OmL.
- a composition for intramuscular injection could be prepared to contain 1 mL sterile buffered water, and 1 mL of the composition of the invention.
- composition for intravenous infusion may comprise 250 ml of sterile Ringer's solution, and 5 mL of the composition of the invention.
- a composition suitable for administration by injection may be prepared by mixing 1% by weight of the composition of the invention by volume propylene glycol and water. The solution is sterilised by filtration.
- Example 4 In vitro cytotoxicity s In vitro cytotoxicity assays were carried out on 5 different carcinoma cell lines
- MDA-MB-231 HCT-116, COLO-201, PC-3 and PC-14
- 3 different compositions of the invention FD45c, FD50-7Sc and FDlOOHPc
- MDA-MB-231 is a breast cancer cell line
- HCT-116 and COLO-201 are colon cancer cell lines
- PC-3 is a prostate cancer cell line
- PC-14 is a non-small cell lung cancer cell line.
- the levels of 5-FU and FA remained constant in each composition.
- assays were also performed using a combination of 5-FU and FA (5-FU:FA), and also 5- FU only.
- composition according to the present invention In vitro assessment of a composition according to the present invention showed that it has similar IC 50 values to 5-FU, 5-FU:FA and 5-FU//3-CD against breast (MDA-MB- 231) and colorectal (HCT-116) cells. Therefore in vivo toxicological assessment was undertaken.
- the dose tolerance of a composition according to the present invention which contains an equimass ratio of 5-FU to FA was compared to that of 5-FU:FA and PBS control mice using a dose escalation protocol.
- Female Balb/c mice, 4-5 weeks of age were obtained from ARC (WA, Australia). Doses were administered by a single i.p. injection of not more than 200 ⁇ L.
- the dose tolerance of a composition according to the present invention which contains an equimass ratio of 5-FU to FA was compared to that of 5-FU.FA and PBS control mice using a dose escalation protocol.
- Example 8 Efficacy Il Breast tumours were induced by subcutaneous inoculation of 2 million MDA-MB-
- mice 231 cells/site into mammary fat pads of 4-5 week old female athymic nude mice. Palpable tumours were observed at the majority of sites inoculated after 2 weeks. Three weeks after the breast cancer inoculation, the mice were administered a previously determined clinically relevant dose of the FDlOOHPc composition or 5-FU:FA in the absence of cyclodextrin. Each cohort size consisted of 10 animals to allow for statistical analysis. Each animal was routinely monitored with survival endpoints being defined as a sustained (>1, ⁇ 3) 15% weight loss to Day 0, or distressed behaviour (e.g. lack of activity, no eating or drinking), or until tumour dimensions were >15mm in diameter. The animals were not monitored for any longer than 3 months.
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CN2008800122995A CN101657203B (en) | 2007-03-02 | 2008-02-29 | Compositions and methods for delivery of anti-cancer agents |
EP08714327A EP2131849B1 (en) | 2007-03-02 | 2008-02-29 | Compositions and methods for delivery of anti-cancer agents |
AU2008222592A AU2008222592B2 (en) | 2007-03-02 | 2008-02-29 | Compositions and methods for delivery of anti-cancer agents |
CA2679919A CA2679919C (en) | 2007-03-02 | 2008-02-29 | Compositions and methods for delivery of anti-cancer agents |
US12/529,635 US8372834B2 (en) | 2007-03-02 | 2008-02-29 | Compositions and methods for delivery of anti-cancer agents |
ES08714327T ES2373867T3 (en) | 2007-03-02 | 2008-02-29 | COMPOSITIONS AND PROCEDURES FOR THE SUPPLY OF ANTI-TARGET AGENTS. |
AT08714327T ATE530188T1 (en) | 2007-03-02 | 2008-02-29 | COMPOSITIONS AND METHODS FOR DELIVERING ANTI-CANCER AGENTS |
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WO2011039147A1 (en) * | 2009-10-01 | 2011-04-07 | Westfälische Wilhelms Universität Münster | Fluorocyclodextrins |
WO2011119125A1 (en) * | 2010-03-25 | 2011-09-29 | Mazilnikov Gennadiy Vasilevich | Use of lithium oxalate in production of a therapeutic preparation with anti-tumour activity in relation to malignant cells, a therapeutic preparation based thereon and a method of treatment |
WO2011119126A1 (en) * | 2010-03-25 | 2011-09-29 | Mazilnikov Gennadiy Vasilevich | Use of oxalic acid in the production of a therapeutic preparation with anti-tumour activity in relation to malignant cells, a therapeutic preparation based thereon and a method of treatment |
WO2023010150A1 (en) * | 2021-08-04 | 2023-02-09 | Detsamma Investments Pty Ltd | Methods of treating brain cancer |
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CN102421451B (en) * | 2009-02-25 | 2013-11-06 | 休普拉特克药品有限公司 | Bendamustine cyclopolysaccharide compositions |
US8389558B2 (en) | 2009-07-20 | 2013-03-05 | Supratek Pharma Inc. | Bendamustine amphiphilic anionic compositions |
US8383663B2 (en) | 2010-07-19 | 2013-02-26 | Supratek Pharma Inc. | Bendamustine anionic-catioinic cyclopolysaccharide compositions |
CN104548103B (en) * | 2013-10-17 | 2018-04-10 | 江西中医药大学 | Graphene oxide and chloramphenicol directly in conjunction with compound preparation method |
CN114920859B (en) * | 2022-05-11 | 2023-09-26 | 宁夏医科大学总医院 | 5-fluorouracil-1-butyryl-beta-cyclodextrin second side derivative and preparation method and application thereof |
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US20100063057A1 (en) | 2010-03-11 |
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