SI20848A - Farmacevtska formulacija, ki vsebuje atorvastatin kalcij - Google Patents
Farmacevtska formulacija, ki vsebuje atorvastatin kalcij Download PDFInfo
- Publication number
- SI20848A SI20848A SI200100069A SI200100069A SI20848A SI 20848 A SI20848 A SI 20848A SI 200100069 A SI200100069 A SI 200100069A SI 200100069 A SI200100069 A SI 200100069A SI 20848 A SI20848 A SI 20848A
- Authority
- SI
- Slovenia
- Prior art keywords
- atorvastatin
- pharmaceutical formulation
- atorvastatin calcium
- amorphous
- calcium
- Prior art date
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- OJRHUICOVVSGSY-RXMQYKEDSA-N (2s)-2-chloro-3-methylbutan-1-ol Chemical compound CC(C)[C@H](Cl)CO OJRHUICOVVSGSY-RXMQYKEDSA-N 0.000 title claims description 26
- 229960001770 atorvastatin calcium Drugs 0.000 title claims description 26
- 239000008194 pharmaceutical composition Substances 0.000 title claims description 22
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- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229960000281 trometamol Drugs 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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Abstract
Predloženi izum se nanaša na farmacevtsko formulacijo, ki vsebuje atorvastatin kalcij (hemi kalcijeva sol (R-(R*,R*))-2-(4-fluorofenil)-beta,delta- dihidroksi-5-(1-metiletil)-3-fenil-4((enilamino)karbonil)-1H- pirol-1-heptanojske kisline). Izum rešuje problem zagotavljanja terapevtske enakosti atorvastatinske farmacevtske formulacije ne glede na to, kakšno obliko (kristalno, amorfno, mešanico obeh) atorvastatina kalcija uporabimo za njeno pripravo.ŕ
Description
Farmacevtska formulacija, ki vsebuje atorvastatin kalcij
Področje tehnike
Atorvastatin kalcij, substanca s kemijskim imenom hemi kalcijeva sol (R-(R*,R*))2-(4-fluorofenil)-3,0-dihidroksi-5-(1-metiletil)-3-fenil-4((enilamino)karbonil)-1H-pirol-1heptanojske kisline, je poznana kot inhibitor HMG-CoA reduktaze in se uporablja kot antihiperholesterolemik. Postopki za pripravo atorvastatina in ključnih intermediatov so opisani v seriji ameriških patentov US 5.003.080, US 5.097.045, US 5.103.024, US 5.124.482, US 5.149.837, US 5.155.251, US 5.216.174, US 5.245.047, US 5.248.793, US 5.280.126, US 5.342.952, US 5.397.792. Atorvastatin, ki je ga vsebujejo farmacevtski pripravki, ki so na tržišču, je v obliki kalcijeve soli, s katero se da pripraviti primerne farmacevtske formulacije kot na primer tablete, kapsule, praške in druge za oralno administracijo primerne oblike.
Atorvastatin kalcij lahko obstaja v amorfni ali pa v eni od štirih (Form I, II, III in IV) kristaliničnih oblik, ki so opisane v patentnih prijavah WO 97/3958 in WO 97/3959. Znano je, da se amorfne oblike številnih farmacevtskih učinkovin razlikujejo od kristaliničnih oblik po hitrosti raztapljanja in biološki razpoložljivosti (Konno T., Chem. Pharm. Buli., 1990;38;2003-2007). Biološka razpoložljivost je za nekatere terapevtske indikacije eden ključnih parametrov po katerih se odločamo, kakšno obliko substance bomo uporabili v farmacevtski formulaciji. Postopki kristalizacije oziroma priprave amorfne snovi so včasih težko vodljivi in kot produkt nastajajo amorfno-kristalinične mešanice s spremenljivim razmerjem obeh oblik oziroma kristalinična namesto amorfne oblike ali obratno. V patentni prijavi WO 97/3960 je posebej poudarjeno, da je zaradi razlik v topnosti med posameznimi oblikami atorvastatina, kar posredno vpliva tudi na njegovo biološko razpoložljivost, zelo pomembno, da se zagotovi uniformnost substance, ki se uporabi v farmacevtski formulaciji. Pri poskusih so opazili tudi to, da v kislem ni vedno možno raztopiti vsega atorvastatina, ki je bil vključen v farmacevtsko formulacijo, kar je ravno tako posledica slabe topnosti atorvastatina kalcija in prav tako onemogoča pripravo farmacevtske formulacije, ki bi bila vedno terapevtsko ekvivalentna.
Problem uniformnosti atorvastatina se lahko rešuje tako, da se pri njegovi finalizaciji uporablja postopke, ki zagotavljajo konstantne fizikalne karakteristike produkta. Problem se pojavi, če se za pripravo farmacevtske formulacije uporablja atorvastatin kalcij iz večih različnih virov, ki se med seboj razlikujejo po fizikalnih karakteristikah atorvastatina kalcija. Možna rešitev je, da se atorvastatin kalcij pred vključitvijo v formulacijo obdela tako, da se pripravi izključno kristalne oblike (WO 97/3958 in WO 97/3959) oziroma izključno amorfne oblike (WO 97/3960 in slovenska patentna prijava P-9900271), kar pa pomeni vključitev dodatne operacije, ki prinese med 5 in 10% izgube. Glede na to, da je pacientu treba zagotoviti, da bo imel na razpolago zdravilo, ki bo vedno terapevtsko ekvivalentno ne glede na to, kakšen atorvastatin kalcij (glede fizikalnih lastnosti) vstopa v farmacevstko formulacijo, smo se odločili, da problem topnosti različnih oblik atorvastatina kalcija in s tem posledično njegove biološke razpoložljivosti, poiskusimo rešiti na nivoju formulacije. Dodatni argument za to odločitev pa predstavlja dejstvo, da je atorvastatin kalcij izredno draga substanca in vse dodatne operacije, kjer je možna izguba substance, močno zmanjšajo ekonomičnost proizvodnje.
Patentna literatura omenja atorvastatin kalcij kot nestabilno substanco in ponuja številne rešitve za zagotavljanje stabilnosti atorvastatinske farmacevtske formulacije. Tako na primer lahko zagotovimo stabilnost formulacije z dodatkom bazičnega ali puferskega sredstva v formulacijo (WO 00/35425, WO 94/16603) oziroma tako da stabiliziramo substanco po analogni metodi, kot je za pravastatin natrij opisana v patentni prijavi PCT/IB00/00773. V kolikor želimo pripraviti stabilizirano amorfno substanco lahko za pripravo uporabimo kombinacijo metod opisanih v patentni prijavi PCT/IB00/00773 in slovenski patentni prijavi P-9900271. Nobena od dosedaj opisanih rešitev na atorvastatinskih farmacevtskih formulacijah pa ne rešuje problema uniformnosti atorvastatina kalcija po fizikalnih parametrih (kristalna oz. amorfna oblika) in s tem povezanih težav pri zagotavljanju terapevtske ekvivalentnosti atorvastatinske farmacevtske formulacije.
Predloženi izum rešuje problem zagotavljanja terapevtske ekvivalentnosti atorvastatinske farmacevtske formulacije ne glede na to, kakšno obliko (kristalno, amorfno, mešanico obeh) atorvastatin kalcija uporabimo za njeno pripravo.
Predmet predloženega izuma je tudi farmacevtska formulacija, ki vsebuje bazično ali puferno substanco, ki izboljša biološko razpoložljivost atorvastatina na tak način, da poveča hitrost njegovega raztapljanja v vodnih raztopinah.
Pri poiskusih smo presenetljivo ugotovili, da se topnost atorvastatin kalcija v vodnih raztopinah močno izboljša pri pH-jih enakih ali višjih od 6, pri čemer postanejo razlike med atorvastatini kalciji z različnimi fizikalnimi lastnostmi zanemarljive. Iz tega smo sklepali, da v kolikor zagotovimo, da bo pH v lokalnem mikrookolju v želodcu, ko se bo tableta razgradila, enak 6 ali višji, se razlike v topnosti med različnimi oblikami atorvastatin kalcija z različnimi fizikalnimi lastnostmi ne bodo več poznale.
Za in vitro simulacijo raztapljanja atorvastatinske farmacevtske formulacije v želodcu smo uporabili naslednji test:
• 900 ml 0.001 M vodne raztopine HCI nam je simuliralo kislinske razmere v želodcu, ko pacient zaužije tableto. Nato smo v časovnih intervalih po 10 minut merili koncentracijo raztopljenega atorvastatina.
Pripravljene so bile štiri različne formulacije (A1, A2, A3 in A4; sestava je podana v Tabeli 1), ki so bile sposobne zagotavljati različen pH vodne raztopine (dosežene pH vrednosti raztopin so podane v Tabeli 2). Rezultati meritev deleža raztopljenega atorvastatina v % so podani v Tabeli 3.
Tabela 1
| Sestava | A1 | A2 | A3 | A4 |
| Atorvastatin amorfen, mikroniziran* | 20,00 | 20,00 | 20,00 | 20,00 |
| Mikrokristalna celuloza (Avicel PH112 ali PH102)* | 98,60 | 78,60 | 72,60 | 37,10 |
| Laktoza monohidrat (70-100 mesh) | 34,80 | 34,80 | 34,80 | 20,00 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,60 | 9,60 | 9,60 | 9,60 |
| polisorbat 80 | 1,30 | 1,30 | 1,30 | 1,30 |
| Hidroksipropil celuloze (Klucel EF) | 2,00 | 2,00 | 2,00 | 2,00 |
| MgO | - | 20,00 | 26,00 | - |
| Na2HPO4 | - | - | - | 140,00 |
| Mikrokristalna celuloza (Avicel PH112) | 71,90 | 71,90 | 71,90 | 48,20 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,60 | 9,60 | 9,60 | 19,60 |
| Aerosil 200 | 1,20 | 1,20 | 1,20 | 1,20 |
| Mg stearat | 1,00 | 1,00 | 1,00 | 1,00 |
| SKUPAJ | 250,00 | 250,00 | 250,00 | 300,00 |
| Demi voda za granulacijo | 100,00 | 70,00 | 70,00 | - |
| Etanol rafiniran (96%) | - | - | - | 50,00 |
*- V obliki atorvastatin Ca v ekvivalentni količini, razliko uskladimo s količino mikrokristalne celuloze
Vse količine potrebne za pripravo ene tablete so podane v miligramih.
Tabela 2
| A1 | A2 | A3 | A4 | |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCl) po 15 min | 3,22 | 4,28 | 6,09 | 6,06 |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCl) po 30 min | 3,21 | 4,67 | 8,88 | 6,02 |
Tabela 3
| A1 | A2 | A3 | A4 | |
| 10 min | 56,5 | 69,7 | 74,9 | 62,2 |
| 20 min | 66,1 | 80,1 | 91,1 | 99,0 |
| 30 min | 70,6 | 85,8 | 96,3 | 97,9 |
| 40 min | 74,4 | 87,0 | 98,2 | 98,3 |
| 60 min | 75,6 | 89,6 | 99,8 | 98,8 |
Kot je razvidno iz meritev, se je ves atorvastatin raztopil le v primeru, ko je bila tableta sposobna dvigniti pH 900 ml vodne raztopine raztopine 0,001 M HCl za tri pH enote, to je do vsaj pH 6. Tudi hitrost raztapljanja atorvastatina je bila v teh primerih veliko hitrejša.
Poleg izboljšanja topnosti pa dvig pH do vrednosti vsaj 6 presentljivo izniči tudi razliko v topnosti med atorvastatinom v kristalinični in amorfni obliki s primerljivo velikostjo delcev . Pripravljeni so bili granulati z dodatki različnih pufernih substanc in z različno fizikalno obliko atorvastatina. Nato je bila narejena primerjava hitrosti sproščanja atorvastatina iz granulatov z dodano pufrno substanco s hitrostjo sproščanja atorvastatina iz referenčnih granulatov brez dodatka pufernih substanc (Tabela 4). pH-ji raztopin, ki so ga bili sposobni zagotavljati različni granulati so podani v Tabeli 5. Rezultati meritev deleža raztopljenega atorvastatina v % v različnih časovnih intervalih so podani v Tabeli 6.
Iz dobljenih rezultatov je razvidno, da je procentualna razlika v deležu raztopljenega amorfnega in kristalnega atorvastatina kalcija v primeru uporabe granulata brez dodatka puferne substance okoli 20%, v primeru dodatka puferne substance pa postane razlika minimalna (pod 5%).
Tabela 4
| Sestava | AK1 | AK2 | AK3 | AA1 | AA2 | AA3 |
| Atorvastatin kristalen* | 20,0 | 20,0 | 20,0 | - | - | - |
| Atorvastatin amorfen* | - | - | - | 20,0 | 20,0 | 20,0 |
| Mikrokristalna celuloza (PH102)* | 71,3 | 71,3 | 71,3 | 71,3 | 71,3 | 71,3 |
| Laktoza monohidrat (70-100 mesh) | 34,8 | 34,8 | 34,8 | 34,8 | 34,8 | 34,8 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,6 | 9,6 | 9,6 | 9,6 | 9,6 | 9,6 |
| polisorbat 80 | 2,6 | 2,6 | 2,6 | 2,6 | 2,6 | 2,6 |
| Hidroksipropil celuloze (Klucel EF) | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 |
| Tris | 110,0 | - | - | 110,0 | - | - |
| Na3PO4 | - | 80,0 | - | - | 80,0 | - |
| Mikrokristalna celuloza (Avicel PH112) | 67,9 | 67,9 | 67,9 | 67,9 | 67,9 | 67,9 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,6 | 9,6 | 9,6 | 9,6 | 9,6 | 9,6 |
| Aerosil 200 | 1,2 | 1,2 | 1,2 | 1,2 | 1,2 | 1,2 |
| Mg stearat | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 |
| Demi voda za granulacijo | 80,0 | 80,0 | 80,0 | 80,0 | 80,0 | 80,0 |
V obliki atorvastatin Ca v ekvivalentni ko ičini, razliko uskladimo s količino mikrokristalne celuloze
Vse količine potrebne za polnjene ene kapsule so podane v miligramih.
Tabela 5
| AK1 | AK2 | AK3 | AA1 | AA2 | AA3 | |
| pH (1 kap. v 900 ml vodne razt. 0,001 M HCI) po 15 min | 6,68 | 6,28 | 3,14 | 6,81 | 6,28 | 3,20 |
| pH (1 kap. v 900 ml vodne razt. 0,001 M HCI) po 30 min | 6,95 | 6,72 | 3,15 | 6,68 | 6,30 | 3,24 |
Tabela 6
| AK1 | AK2 | AK3 | AA1 | AA2 | AA3 | |
| 10 min | 64,6 | 49,9 | 31,8 | 75,9 | 50,8 | 38,7 |
| 20 min | 76,4 | 63,4 | 44,5 | 82,6 | 62,1 | 53,4 |
| 30 min | 81,0 | 72,3 | 51,4 | 83,6 | 68,5 | 61,5 |
| 40 min | 84,2 | 77,3 | 55,8 | 83,9 | 72,8 | 66,6 |
Topnost amorfnega atorvastatina kalcija smo poiskusili izboljšati s povečanjem specifične površine delcev amorfne substance. Pripravljenih je bilo šest različnih granulatov na enak način kot v prejšnjem poiskusu, edina razlika je bila ta, da je bil v treh vzorcih uporabljen namesto kristalnega mikroniziran amorfen atorvastatin kalcij (vzorci AAM1, AAM2 in AAM3) z velikostjo delcev D(0.9)=5.3pm, D(0.5)=2.0pm in D(0.1)= 0.4pm (nemirkroniziran amorfen atorvastatin: D(0.9)=221gm, D(0.5)=58pm in
D(0.1)= 2.4μιτι). pH-ji raztopin, ki so jih bili sposobni zagotavljati granulati so podani v Tabeli 7. Rezultati meritev deleža raztopljenega atorvastatina v % v različnih časovnih intervalih so podani v Tabeli 8.
Tabela 7
| AAM1 | AAM2 | AAM3 | AA1 | AA2 | AA3 | |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 15 min | 6,68 | 6,28 | 3,14 | 6,81 | 6,28 | 3,20 |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 30 min | 6,95 | 6,72 | 3,15 | 6,68 | 6,30 | 3,24 |
Tabela 8
| AAM1 | AAM2 | AAM3 | AA1 | AA2 | AA3 | |
| 10 min | 85,9 | 93,9 | 41,5 | 75,9 | 50,8 | 38,7 |
| 20 min | 95,8 | 94,2 | 55,9 | 82,6 | 62,1 | 53,4 |
| 30 min | 98,4 | 93,9 | 63,8 | 83,6 | 68,5 | 61,5 |
| 40 min | 99,3 | 94,0 | 68,9 | 83,9 | 72,8 | 66,6 |
Iz dobljenih rezultatov je razvidno, da je razlika v deležu raztopljenega amorfnega in amorfnega mikroniziranega atorvastatina v primeru uporabe granulata brez dodatka puferne substance minimalna, da pa v primeru dodatka puferne substance naraste na več kot 15%.
Iz omenjenih eksperimentov se je presentljivo pokazalo, da je možno zagotoviti terapevtsko ekvivalentnost atorvastatinskih farmacevtskih formulacij, ne glede na to, kakšno obliko (kristalna, amorfna, mešanica obeh) atorvastatin kalcija uporabimo za njihovo priprav. Ključno za zagotavljanje terapevtske ekvivalentnosti pa je, da je formulacije sposobna dvigniti pH 900 ml vodne raztopine 0,001 M HCI na pH 6 ali več.
Druga presenetljiva ugotovitev je, da je hitrost raztapljanja mikroniziranega amorfnega atorvastatina kalcija v granulatu s pufrno substanco za okoli 15% večja kot v primeru nemikroniziranega atorvastatina kalcija. Pri tem je najbolj presenetljivo dejstvo, da samo povečanje specifične površine delcev ne vpliva na izboljšanje topnosti, saj je topnost mikroniziranega in nemikroniziranega amorfnega atorvastatina kalcija v granulatih brez dodatka pufrne substance enaka.
Farmacevtska formulacija, ki je predmet tega izuma, vsebuje poleg atorvastatin kalcija eno ali več polnil, kot so na primer mikrokristalna celuloza, laktoza, sladkorji, različne vrste škroba, modificirane oblike škroba, manitol, sorbitol in drugi polioli, dekstrin, dekstran in maltodekstrin, kalcijev karbonat, kalcijev fosfat in/ali hidrogenfosfat, sulfat, enega ali več vezalcev, na primer laktozo, različne vrste škroba, modificirane oblike škroba, dekstrin, dekstran in maltodekstrin, mikrokristalno celulozo, sladkorje, polietilenglikole, hidroksipropilcelulozo, hidroksipropilmetilcelulozo, etilcelulozo, hidroksietilcelulozo, metilcelulozo, karboksimetilcelulozo, natrijevo karboksimetilcelulozo, želatino, gumi akacijo, tragakant, polivinilpriolidon, magnezijev aluminijev silikat, eno ali več razgrajeval, kot na primer premreženo natrijevo karboksimetilcelulozo, premrežen polivinilpirolidon, premrežen karboksimetilni škrob, različne vrste škroba in mikrokristalne celuloze, magnezijev aluminijev silikat, kalijev poliakrilin, eno ali več različnih drsil, kot na primer magnezijev, kalcijev in cinkov stearat, kalcijev behenat, natrijev stearil fumarat, smukec, magnezijev trisilikat, stearinska kislina, palmitinska kislina, vosek karnauba, silicijev dioksid, in eno ali več pufernih komponent, kot so natrijev citrat, dinatrijev hidrogen fosfat, kalcijev karbonat, hidrogenfosfat, fosfat, sulfat, magnezijev karbonat, kalijev citrat, kalijev sorbat, natrijev askorbat, benzoat, hidrogenkarbonat, hidrogenfosfat, oziroma eno ali več bazičnih komponet, kot so MgO, MgOH, NaOH, Ca(OH)2, trometamin, Al Mg silikat, lavrilsulfat. Po potrebi lahko vključimo v formulacijo tudi površinsko aktivne snovi in druge običajne komponente za trdne farmacevtske oblike kot so barvila, laki arome in snovi za adsorbcijo. Kot površinsko aktivno snov lahko uporabimo ionske površinsko aktivne snovi, kot natrijev lavrilsulfat, neionske površinsko aktivne snovi, kot različni tipi poloksamerov (kopolimeri polioksietilena in polioksipropilena), naravni ali sintezni lecitini ter estri sorbitana in maščobnih kislin (kot Špan® (Atlas Chemie)), estri polioksietilensorbitana in maščobnih kislin (kot Tween® (Atlas Chemie)), polioksietilirano hidrogenirano ricinusovo olje (kot Cremophor® (BASF)), polioksietilen stearati (kot Myrj® (Atlas Chemie)) ali kationske površinsko aktivne snovi, kot je cetilpiridinijev klorid ali katerekoli kombinacije navedenih površinsko aktivnih snovi.
Trdne farmacevtske oblike, ki so predmet predloženega izuma, lahko pripravimo na sledeče načine:
• zmes zdravilne učinkovine, polnila, vezalca, pufrne komponente, razgrajevala in po potrebi še površinsko aktivne snovi ter druge običajne komponente za trdne farmacevtske oblike homogeno premešamo na ustreznih mešalcih, zmes kompaktiramo na ustreznih kompaktirkah ali briketiramo na strojih za briketiranje ali običajnih tabletirkah, kompakte ali brikete zdrobimo in/ali presejemo, dodam polnila, razgrajevala, puferne komponente, drsila, lubrikatorje in druge običajne pomožne snovi za tablete ali kapsule in ponovno homogeno premešamo. Dobljeno zmes tabletiramo ali polnimo v kapsule.
• zmes zdravilne učinkovine, polnila, vezalca, pufrne komponente, razgrajevala in po potrebi še površinsko aktivne snovi ter druge običajne komponente za trdne farmacevtske oblike homogeno premešamo na ustreznih mešalcih, dodamo drsila in lubrikatorje in ponovno homogeno premešamo. Dobljeno zmes tabletiramo ali polnimo v kapsule.
• zmes zdravilne učinkovine, polnila, vezalca, pufrne komponente, razgrajevala in po potrebi še površinsko aktivne snovi ter druge običajne komponente za trdne farmacevtske oblike homogeno premešamo na ustreznih mešalcih, granuliramo z ustreznim topilom, kot so voda, etanol, metanol, izopropil alkohol, n-butil alkohol, aceton, dietileter, etilacetat, izopropilacetat, metilacetat, diklormetan, kloroform, zmesi teh topil kot etanol in aceton, metanol in aceton, diklormetan in metanol, in zmesi le-teh. Dobljeni granulat posušimo v primernih sušilnikih, kot so klasični sušilniki s pladnji, vrtinčnoslojni sušilniki, vakumski in mikrovalovni sušilniki, pri temperaturi do 60°C. K posušenemu granulatu dodamo polnila, razgrajevala, puferne komponente, drsila in lubrikatorje ter po potrebi še druge običajne komponente za trdne farmacevtske oblike. Dobljeno zmes ponovno homogeno premešamo in tabletiramo ali polnimo v kapsule.
Tablete so lahko tudi obložene s filmsko oblogo.
Predloženi izum prikazujejo, vendar v ničemer ne omejujejo naslednji primeri.
PRIMERI
Primera 1-2
Tablete z dodatkom MgO ali Na2PHO4
Substance navedene v spodnji tabeli smo homogeno premešali na mešalcu in granulirali z vodo oz.etanolom. Dobljeni granulat smo posušili v vakuumskem sušilniku pri temperaturi do 60°C.
| Sestava | A3 | A4 |
| Atorvastatin amorfen, mikroniziran* | 20,00 | 20,00 |
| Mikrokristalna celuloza (Avicel PH112 ali PH102)* | 72,60 | 37,10 |
| Laktoza monohidrat (70-100 mesh) | 34,80 | 20,00 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,60 | 9,60 |
| polisorbat 80 | 1,30 | 1,30 |
| Hidroksipropil celuloze (Klucel EF) | 2,00 | 2,00 |
| MgO | 26,00 | - |
| Na2HPO4 | - | 140,00 |
| Demi voda za granulacijo | 70,00 | - |
| Etanol rafiniran za granulacijo (96%) | - | 50,00 |
*- V obliki atorvastatin Ca v ekvivalentni količini, razliko uskladimo s količino mikrokristalne celuloze
Vse količine so podane v miligramih (za eno tableto). Količina pripravljenega granulata je zadostovala za pripravo 1000 kosov 250 mg tablet.
K posušenemu granulatu smo dodali še:
| Mikrokristalna celuloza (Avicel PH112) | 71,90 | 48,20 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,60 | 19,60 |
| Aerosil 200 | 1,20 | 1,20 |
| Mg stearat | 1,00 | 1,00 |
Dobljeno zmes smo ponovno homogeno premešali in tabletirali. pH-ji, ki jih je bila sposobna zagotavljati ena tableta v 900 ml vodne raztiopine 0.001 M raztopine HCI so bili naslednji.
| A3 | A4 | |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 15 min | 6,09 | 6,06 |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 30 min | 8,88 | 6,02 |
Primeri 3-6
Kapsule z amorfnim oziroma kristaliničnim atorvastatinom kalcijem z dodatkom Tris-a oziroma Na3PC>4
Substance navedene v spodnji tabeli smo homogeno premešali na mešalcu in granulirali z vodo oz. etanolom. Dobljeni granulat smo posušili v vakuumskem sušilniku pri temperaturi do 60°C.
-1010
| Sestava | AK1 | AK2 | AA1 | AA2 |
| Atorvastatin kristalen* | 20,0 | 20,0 | - | - |
| Atorvastatin amorfen* | - | - | 20,0 | 20,0 |
| Mikrokristalna celuloza (PH102)* | 71,3 | 71,3 | 71,3 | 71,3 |
| Laktoza monohidrat (70-100 mesh) | 34,8 | 34,8 | 34,8 | 34,8 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,6 | 9,6 | 9,6 | 9,6 |
| polisorbat 80 | 2,6 | 2,6 | 2,6 | 2,6 |
| Hidroksipropil celuloze (Klucel EF) | 2,0 | 2,0 | 2,0 | 2,0 |
| Tris | 110,0 | - | 110,0 | - |
| Na3PO4 | - | 80,0 | - | 80,0 |
| Demi voda za granulacijo | 80,0 | 80,0 | 80,0 | 80,0 |
Vse količine potrebne za pripravo granulata za eno kapsulo so podane v miligramih. Količina pripravljenega granulata je zadostovala za polnjenje 1000 kapsul.
K posušenemu granulatu smo dodali še:
| Mikrokristalna celuloza (Avicel PH112) | 67,9 | 67,9 | 67,9 | 67,9 |
| Premrežena karboksimetilceluloza (Ac-di-sol) | 9,6 | 9,6 | 9,6 | 9,6 |
| Aerosil 200 | 1,2 | 1,2 | 1,2 | 1,2 |
| Mg stearat | 1,0 | 1,0 | 1,0 | 1,0 |
Dobljeno zmes smo ponovno homogeno premešali in tabletirali. pH-ji, ki jih je bila sposobna zagotavljati ena tableta v 900 ml vodne raztiopine 0.001 M raztopine HCI so bili naslednji.
| AK1 | AK2 | AA1 | AA2 | |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 15 min | 6,68 | 6,28 | 6,81 | 6,28 |
| pH (1 tabl. v 900 ml vodne razt. 0,001 M HCI) po 30 min | 6,95 | 6,72 | 6,68 | 6,30 |
Uporabljeni atorvastatin bi lahko bil tudi mikroniziran ali obdelan s kakšno drugo metodo za povečanje specifične površine delcev (na primer mletje)
LEK, d.d.
Claims (2)
- Patentni zahtevki:1. Trdna farmacevtska formulacija, ki vsebuje aktivno učinkovino atorvastatin kalcij, označena s tem, da je enkraten odmerek trdne farmacevtske formulacije (naprimer ena tableta ali kapsula) sposoben dvigniti pH 900 ml vodne raztopine 0.001 M HCI na pH 6 ali več.
- 2. Postopek priprave trdne farmacevtske formulacije po zahtevku 1, označen s tem, da se v farmacevtsko formulacijo vključi puferna ali bazična substanca, ki omogoča, da je enkraten odmerek trdne farmacevtske formulacije (naprimer ena tableta ali kapsula) sposoben dvigniti pH 900 ml vodne raztopine 0.001 M HCI na pH 6 ali več.
Priority Applications (31)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200100069A SI20848A (sl) | 2001-03-14 | 2001-03-14 | Farmacevtska formulacija, ki vsebuje atorvastatin kalcij |
| IL15753402A IL157534A0 (en) | 2001-03-14 | 2002-02-13 | Atorvastatin calcium in a pharmaceutical form composition thereof, and pharmaceutical formulation comprising atorvastatin calcium |
| CZ2003-2469A CZ306128B6 (cs) | 2001-03-14 | 2002-03-13 | Kalcium-atorvastatin ve farmaceutické formě, prostředky obsahující tuto sloučeninu a farmaceutické přípravky obsahující kalcium-atorvastatin |
| SI200230945T SI1499297T1 (sl) | 2001-03-14 | 2002-03-13 | Farmacevtska oblika, ki vsebuje atorvastatin kalcij |
| CA002440331A CA2440331C (en) | 2001-03-14 | 2002-03-13 | Atorvastatin calcium in a pharmaceutical form, composition thereof, and pharmaceutical formulation comprising atorvastatin calcium |
| MEP-2008-845A ME00517B (me) | 2001-03-14 | 2002-03-13 | Atorvastati kalcijum u farmaceutskom obliku, njegovoj smješi i farmaceutskoj formulaciji, koja sadrži atorvastatin kalcijum |
| HU0303434A HU230213B1 (hu) | 2001-03-14 | 2002-03-13 | Atorvasztatin-kalciumot tartalmazó gyógyszerkészítmény |
| CN028064739A CN1630510B (zh) | 2001-03-14 | 2002-03-13 | 药物形式的阿托伐他汀钙、其组合物和包含阿托伐他汀钙的药物制剂 |
| BR0207880-5A BR0207880A (pt) | 2001-03-14 | 2002-03-13 | Formulação farmacêutica, processo para preparação da mesma e uso de formulação sólida |
| PL371919A PL211803B1 (pl) | 2001-03-14 | 2002-03-13 | Preparat farmaceutyczny zawierający sól wapniową atorwastatyny, sposób wytwarzania tego preparatu i jego zastosowanie do leczenia hipercholesterolemii i hiperlipidemii |
| EP10183122.0A EP2263655B1 (en) | 2001-03-14 | 2002-03-13 | Pharmaceutical formulation comprising atorvastatin calcium |
| SK1136-2003A SK287925B6 (sk) | 2001-03-14 | 2002-03-13 | Pharmaceutical formulation comprising atorvastatin calcium, method for the preparation and use |
| KR1020037011535A KR100905730B1 (ko) | 2001-03-14 | 2002-03-13 | 약제학적 형태의 아토르바스타틴 칼슘, 이의 조성물 및아토르바스타틴 칼슘을 함유하는 약제학적 제형 |
| AT02702654T ATE500818T1 (de) | 2001-03-14 | 2002-03-13 | Kalziumatorvastatin enthaltende arzneiformulierung |
| DE60239425T DE60239425D1 (de) | 2001-03-14 | 2002-03-13 | Kalziumatorvastatin enthaltende arzneiformulierung |
| JP2002571032A JP4295988B2 (ja) | 2001-03-14 | 2002-03-13 | 医薬形態のアトルバスタチンカルシウム、その構成物、及びアトルバスタチンカルシウムを含む医薬製剤 |
| PCT/IB2002/000736 WO2002072073A2 (en) | 2001-03-14 | 2002-03-13 | Pharmaceutical formulation comprising atorvastatin calcium |
| US10/471,906 US7030151B2 (en) | 2001-03-14 | 2002-03-13 | Atorvastatin calcium in a pharmaceutical form composition thereof and pharmaceutical formulation comprising atorvastatin calcium |
| UA2003098317A UA78201C2 (en) | 2001-03-14 | 2002-03-13 | Pharmaceutical formulation containing amorphous micronized atorvastatin calcium and method for preparation thereof |
| EP02702654A EP1499297B1 (en) | 2001-03-14 | 2002-03-13 | Pharmaceutical formulation comprising atorvastatin calcium |
| MXPA03008340A MXPA03008340A (es) | 2001-03-14 | 2002-03-13 | Calcio de atorvastatina en una forma farmaceutica, su composicion, y formulacion farmaceutica que comprende calcio de atorvastatina. |
| ES02702654T ES2361609T3 (es) | 2001-03-14 | 2002-03-13 | Formulación farmaceútica que comprende atorvastanina cálcica. |
| PL396343A PL217835B1 (pl) | 2001-03-14 | 2002-03-13 | Preparat farmaceutyczny zawierający sól wapniową atorwastatyny, sposób wytwarzania tego preparatu i jego zastosowanie do leczenia hipercholesterolemii i hiperlipidemii |
| ES10183122T ES2417881T3 (es) | 2001-03-14 | 2002-03-13 | Formulación farmacéutica que comprende atorvastatina cálcica |
| RS20110313A RS55021B1 (sr) | 2001-03-14 | 2002-03-13 | Atorvastatin kalcijum u farmaceutskom obliku, njegovoj smeši i farmaceutskoj formulaciji, koja sadrži atorvastatin kalcijum |
| YU69603A RS51746B (sr) | 2001-03-14 | 2002-03-13 | Atorvastatin kalcijum u farmaceutskom obliku, njegovoj smeši i farmaceutskoj formulaciji, koja sadrži atorvastatin kalcijum |
| HRP20030726AA HRP20030726B1 (hr) | 2001-03-14 | 2002-03-13 | Atorvastatin kalcij u farmaceutskom obliku, njegova kompozicija i farmaceutska formulacija koja obuhvaä†a atorvastatin kalcij |
| RU2003130378/15A RU2293555C2 (ru) | 2001-03-14 | 2002-03-13 | Аторвастатин кальций в фармацевтической форме, его композиция и фармацевтическая рецептура, содержащая аторвастатин кальций |
| IL157534A IL157534A (en) | 2001-03-14 | 2003-08-21 | Atorvastatin calcium in a pharmaceutical form, composition thereof and pharmaceutical formulation comprising atorvastatin calcium |
| ZA200306575A ZA200306575B (en) | 2001-03-14 | 2003-08-22 | Atorvastatin calcium in a pharmaceutical form, composition thereof, and pharmaceutical formulation comprising atorvastatin calcium. |
| BG108175A BG66339B1 (bg) | 2001-03-14 | 2003-09-12 | Фармацевтична форма съдържаща калциев аторвастатин |
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| SI200100069A SI20848A (sl) | 2001-03-14 | 2001-03-14 | Farmacevtska formulacija, ki vsebuje atorvastatin kalcij |
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| SI200100069A SI20848A (sl) | 2001-03-14 | 2001-03-14 | Farmacevtska formulacija, ki vsebuje atorvastatin kalcij |
| SI200230945T SI1499297T1 (sl) | 2001-03-14 | 2002-03-13 | Farmacevtska oblika, ki vsebuje atorvastatin kalcij |
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| US (1) | US7030151B2 (sl) |
| EP (2) | EP2263655B1 (sl) |
| JP (1) | JP4295988B2 (sl) |
| KR (1) | KR100905730B1 (sl) |
| CN (1) | CN1630510B (sl) |
| AT (1) | ATE500818T1 (sl) |
| BG (1) | BG66339B1 (sl) |
| BR (1) | BR0207880A (sl) |
| CA (1) | CA2440331C (sl) |
| CZ (1) | CZ306128B6 (sl) |
| DE (1) | DE60239425D1 (sl) |
| ES (2) | ES2361609T3 (sl) |
| HR (1) | HRP20030726B1 (sl) |
| HU (1) | HU230213B1 (sl) |
| IL (2) | IL157534A0 (sl) |
| ME (1) | ME00517B (sl) |
| MX (1) | MXPA03008340A (sl) |
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| RS (2) | RS51746B (sl) |
| RU (1) | RU2293555C2 (sl) |
| SI (2) | SI20848A (sl) |
| SK (1) | SK287925B6 (sl) |
| UA (1) | UA78201C2 (sl) |
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