TWI279230B - Pregabalin composition - Google Patents
Pregabalin composition Download PDFInfo
- Publication number
- TWI279230B TWI279230B TW093139422A TW93139422A TWI279230B TW I279230 B TWI279230 B TW I279230B TW 093139422 A TW093139422 A TW 093139422A TW 93139422 A TW93139422 A TW 93139422A TW I279230 B TWI279230 B TW I279230B
- Authority
- TW
- Taiwan
- Prior art keywords
- pharmaceutical composition
- liquid pharmaceutical
- concentration
- acid
- hydroxybenzoate
- Prior art date
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- 239000000203 mixture Substances 0.000 title abstract description 26
- AYXYPKUFHZROOJ-ZETCQYMHSA-N pregabalin Chemical compound CC(C)C[C@H](CN)CC(O)=O AYXYPKUFHZROOJ-ZETCQYMHSA-N 0.000 title abstract 2
- 229960001233 pregabalin Drugs 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 44
- 239000003755 preservative agent Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000006068 taste-masking agent Substances 0.000 claims abstract description 7
- 230000002335 preservative effect Effects 0.000 claims abstract description 6
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- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims description 11
- NUVBSKCKDOMJSU-UHFFFAOYSA-N ethylparaben Chemical compound CCOC(=O)C1=CC=C(O)C=C1 NUVBSKCKDOMJSU-UHFFFAOYSA-N 0.000 claims description 8
- 235000013355 food flavoring agent Nutrition 0.000 claims description 8
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims description 8
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims description 8
- 235000010228 ethyl p-hydroxybenzoate Nutrition 0.000 claims description 7
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- 229910052749 magnesium Inorganic materials 0.000 description 1
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- 229940049920 malate Drugs 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-L malate(2-) Chemical compound [O-]C(=O)C(O)CC([O-])=O BJEPYKJPYRNKOW-UHFFFAOYSA-L 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- 150000002943 palmitic acids Chemical class 0.000 description 1
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- MFDFERRIHVXMIY-UHFFFAOYSA-N procaine Chemical compound CCN(CC)CCOC(=O)C1=CC=C(N)C=C1 MFDFERRIHVXMIY-UHFFFAOYSA-N 0.000 description 1
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- TYFQFVWCELRYAO-UHFFFAOYSA-L suberate(2-) Chemical compound [O-]C(=O)CCCCCCC([O-])=O TYFQFVWCELRYAO-UHFFFAOYSA-L 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
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- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
- A61K9/0095—Drinks; Beverages; Syrups; Compositions for reconstitution thereof, e.g. powders or tablets to be dispersed in a glass of water; Veterinary drenches
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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
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/04—Centrally acting analgesics, e.g. opioids
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/08—Antiepileptics; Anticonvulsants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/20—Hypnotics; Sedatives
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/30—Drugs for disorders of the nervous system for treating abuse or dependence
- A61P25/32—Alcohol-abuse
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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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
- A61K47/06—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
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
Landscapes
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Neurology (AREA)
- Biomedical Technology (AREA)
- Neurosurgery (AREA)
- Pain & Pain Management (AREA)
- Psychiatry (AREA)
- Addiction (AREA)
- Anesthesiology (AREA)
- Rheumatology (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
1279230 九、發明說明: 【考务明戶斤冬均^々真】 發明領域 本發明係關於一種包含前伽巴素且合適於口服給藥的液 5 體醫藥組合物。 L ^tr ]| 發明背景 可口服給藥的液體醫藥組合物對治療小孩及年長患者 來說為一有吸引力的劑形。液體醫藥組合物容易呑服,且 10若經適當配製的話可具有有吸引力的味道,且可隨著規定 的給藥方式增加患者之容量彈性。此外,當與固體劑形比 較時,液體醫藥配方能提供較好的個體化劑量,此當在治 療不同患者群(諸如小孩及長者)時很重要。 前伽巴素(或(S)-(+)-3-胺基甲基甲基-己酸)會黏結 15 至鈣通道愛發-2-得爾他(α2(5)亞單位,且與内生性抑制性 神經介質7 -胺基丁酸(GABA)(其與腦神經元活性調節有關) 有關。前伽巴素具有抗癲癇發作活性(如由R· Β·席爾佛門 (Silverman)等人論述在美國專利案號5,563,175中),且在其 它症狀當中已認為其可有用地用來治療疼痛 '與精神運動 性興奮藥有關之生理症狀、發炎、胃腸損傷、酒精中毒、 失眠症及多種精神病病症(包括躁狂及雙極性障礙)。 包含前伽巴素之經口液體醫藥組合物帶給配方設計師 許多挑戰。前伽巴素具有強烈的苦味。結果,任何兒科J 劑將很可能需要遮盘此味道。但是,前伽巴素的高水中、、、 20 1279230 解度(32.1毫克/毫升)使其難以遮蓋味道。再者,如伽巴嗔 丁(gabapentin)般’前伽巴素為_ 胺基酸,其在正常儲存 仏件下及於K存在下會進行分子内環化而形成内酿胺(4_異 丁基-吼略咬-2-1同)。參見例如,w〇 99/聊仏獨 5 "/59573,二篇皆由八.阿歐瑪朱(Aomatsu)所著。雖然已熟 知該組成物之非活性組分會影響内醯胺形成,但難以預測 何種賦形劑或佐藥會導致不想要的内醯胺形成。 【明内^L】 發明概要 10 本發明提供一種穩定可用於口服給藥的液體醫藥組合 物。該組合物包含前伽巴素或_前伽巴素之醫藥上可接受 的複合物或鹽。該液體醫藥組合物亦包含水、至少一種防 腐劑、至少一種味道遮蓋劑及可選擇的黏度控制劑。該液 體醫藥組合物之pH至少5·5,但是不大於7 〇。 15 【實施方式】 較佳實施例之詳細說明 除非其它方面有指出,否則此公告使用下列定義。 “醫藥上可接受,,指為一物質,其在穩當的醫療診斷範 圍内,合適於使用來與患者組織接觸而沒#異常毒性、刺 2〇激、過敏反應及其類似症狀,且其與合理的利害比及意欲 使用的效率相稱。 “治療,,指為逆轉、減輕、抑制此名稱所應用的病症或 症狀發展或預防其發展;或可預防一種或多種此病症或症 狀的徵候。 I279230 冶療指為如上述立即定義之“治療,,作用。 “約”,當與可測量的數值變數連接使用時,其指為該 變數之指纽及該·在指出值的實㈣油(例如,在平 均值的95%信賴區間内)或在指出值的職百分比内⑽視 5 那個較大)之全部值。 岛“溶劑化物,,指為-分子複合物,其包含前伽巴素與一化 學計量之-種或多種醫藥上可接受的溶劑分子(例如,乙醇)。 水合物指為一溶劑化物,其包含前伽巴素及一化學 計量的水。 10 如上述提及,該經口的液體醫藥組合物包含前伽巴素 (其可溶解或分散在水中)且包含至少一種防腐劑、至少一種 味道遮蓋劑及一種或多種可選擇的黏度控制劑。前伽巴素 存在於該液體醫藥組合物中之濃度通常至少約1 〇毫克/毫 升,更典型的存在濃度為至少約15毫克/毫升。 15 可使用熟知的方法來製備前伽巴素。在這些方法中, 某些會合成3-胺基曱基-5-甲基-己酸之外消旋混合物,隨後 將其解析成R-及S-鏡像物。此方法描述在R.B.席爾佛門等人 之美國專利案號5,563,175、Τ·Μ·葛羅特(Grote)等人之美國 專利案號6,046,353、Τ·Μ·葛羅特等人之美國專利案號 20 5,840,956、Τ·Μ·葛羅特等人之美國專利案號5,637,767、Β.Κ. 哈卡畢(Huckabee)&D.M·梭畢瑞(Sobieray)之美國專利案號 5,629,447及B.K.哈卡畢&D.M·梭畢瑞的美國專利案號 5,616,793中。在這些方法中,每個皆讓外消旋鹽與一對掌 性酸(解析劑)反應而形成一對非鏡像異構物鹽,再利用熟知 7 1279230 的技術(諸如部分結晶及色層分析法)來分離。在其它方法 中,直接使用對掌性輔助劑((4R,5S)-4-甲基-5-苯基-2-噚唑 啶酮)來合成前伽巴素。參見例如,美國專利案號 6,359,169、6,028,214、5,847,151、5,710,304、5,684,189、 5 5,608,090及5,599,973,其全部由席爾佛門等人發表。在仍 然其它方法中,前伽巴素之製備可藉由一經氰基取代的烯 烴之不對稱氫化反應來產生一胺基曱基_5_甲基己酸 的對掌性氰基前驅物,隨後將其還原而產生前伽巴素。參 見柏克(Burk)等人之美國專利申請案2〇〇3/〇21229〇 A1。 10 當製備該經口的液體醫藥組合物時,可使用任何醫藥 上可接受的前伽巴素形式,包括(不限於)其游離態形式(兩 性離子)及其醫藥上可接受的複合物、鹽、溶劑化物、水合 物及夕形體。鹽包括(不限於)酸加成鹽及驗加成鹽,包括半 鹽。β醫藥上可接受的酸加成鹽可包括無毒的鹽,如其可 來自無機酉夂,諸如氫氯酸、碗酸、磷酸、硫酸、氫漠酸、 氯峨酸、氫氣酸、亞磷酸及其類似物;該無毒的鹽同樣可 來自有機酸,諸如脂肪族單及二致酸、經苯基取代的鏈院 酸、經基鏈烧酸、鏈燒二酸、芳香族酸、脂肪族及芳香族 石黃酸等等。潛在有用的鹽包括醋酸鹽、天冬胺酸鹽、苯曱 酉:鹽、氯苯甲酸鹽、甲基笨甲酸鹽、二硝基笨曱酸鹽、苯 2酉夂鹽、故酸氫鹽、碳酸鹽、硫酸氫鹽、硫酸鹽、焦硫酸 ^亞&馱氫鹽、亞硫酸鹽、硼酸鹽、樟腦磺酸鹽、辛酸 意才丁才豕酉夂鹽、乙二石黃酸鹽、乙石黃酸鹽(esylate)、甲酸鹽、 反丁稀二酸鹽、葡庚糖酸鹽、葡萄糖酸鹽、葡萄祕酸鹽、 1279230 六氟磷酸鹽、希斑酸鹽、鹽酸、氣化物、氫溴酸、溴化物、 氫埃酸、礙化物、羥乙磺酸鹽、異丁酸鹽、乳酸鹽、蘋果 酸鹽、順丁烯二酸鹽、丙二酸鹽、扁桃酸鹽、曱磺酸鹽、 甲基硫酸鹽、萘酸鹽、2-萘磺酸鹽、菸酸鹽、硝酸鹽、乳 5清酸鹽、草酸鹽、棕櫚酸鹽、雙羥萘酸鹽、磷酸鹽、磷酸 氫鹽、二氫磷酸鹽、偏磷酸鹽、焦磷酸鹽、酞酸鹽、丙酸 鹽、糖貝酸鹽、癸二酸鹽、硬脂酸鹽、辛二酸鹽、破拍酸 鹽、酒石酸鹽、甲苯磺酸鹽、三氟醋酸鹽及其類似物。 醫藥上可接受的鹼鹽可包括來自鹼(包括金屬陽離 10子’諸如驗金或鹼土金屬陽離子)和胺的無毒鹽。潛在有用 的鹽實例包括(不限於)鋁、精胺酸、N,N,_雙苄基乙撐二胺、 鈣、氯普魯卡因、膽鹼胺、二乙醇胺、二乙胺、二環己胺、 乙二胺、甘胺酸、離胺酸、鎂、N-甲基還原葡糖胺、乙醇 胺、鉀、普魯卡因、鈉、緩血酸胺、鋅及其類似物。對有 15 用的酸加成及鹼鹽之論述可參見S.M.柏舉(Berge)等人,/· 〇/P/mrm· &/·,66 : 1-19(1977);亦可參見史達爾(Stahl)及 倭瑪斯(Wermuth),##廣f # ··艋貧、選篆及熒居(2002)。 前伽巴素之醫藥上可接受的鹽之製備可藉由將其游離 態(兩性離子)形式與想要的酸或鹼反應;藉由從合適的前伽 20 巴素前驅物移除酸或鹼不穩定的保護基團;藉由使用一想 要的酸或驗來開環一合適的環狀(内酿胺)前驅物;或藉由與 適當的酸或鹼反應或藉由與合適的離子交換管柱接觸,將 前伽巴素的一種鹽轉換成另一種。典型可在溶劑中進行全 部的這些轉換。所產生的鹽可沉澱出且可藉由過濾收集; 1279230 或可藉由蒸發溶劑而重新獲得。在所產生的鹽中之離子化 程度可從完全離子化變化至幾乎未離子化。 岫伽巴素可以未經溶劑化及經溶劑化二形式存在,且 可如為除了鹽外之其它複合物型式。有用的複合物包括籠 5形化合物或藥物宿主包合複合物(與溶劑化物比較,其中藥 物與彳S主以化學計量或非化學計量存在)。有用的前伽巴素 複合物亦可以化學計量或非化學計量包含二種或更多種有 枝、無機或有機及無機組分。所產生的複合物可經離子化、 邛刀離子化或未離子化。對此複合物之回顧可參見JK·海爾 ° 布立女(Haleblian),/·尸/^道·似· 64(8) : 1269-88(1975)。 有用的前伽巴素形式包括其全部的多形體及結晶形 恶’和别伽巴素其R-鏡像物及外消旋混合物與其R-鏡像物。 有用的前伽巴素形式將亦包括醫藥上可接受之經同位 素標定的化合物,其中一個或多個原子由具有相同原子數 15但是原子量或質量數與天然佔支配之原子量或質量數不同 的原子置換。合適於内含在前伽巴素中的同位素實例包括 氫(2H及3H)、碳(UC、13C及14C)及氮(13N及15N)之同位素。 經同位素標定的前伽巴素形式通常可利用已由熟知此技藝 之人士所熟知的習知技術來製備。 20 如上述提及,該液體醫藥組合物之pH範圍約5.5至約
7·0,較佳範圍約5·5至約6.5,及更佳範圍約5·8至約6.2。這 些pH範圍似乎可減低或防止在該液體組成物之製備期間, 和在將該組成物儲存於ICH條件(25°C在60%RH下、30°C在 60%RH下及4〇°c在75%RH下)下及於冷卻條件(在2°C至8°C 1279230 間)下上至二年期間形成内醯胺。在pH低於約5·5或大於約 7·0時’顯示出在組成物中之内醯胺形成無法接受(即,大於 約0.5重量;將pH維持在約5.8至約6.2間則顯示出可最小 化内酸胺之形成。在液體組成物之製備期間,可加入醫藥 5 上可接受的酸或鹼以將pH調整至想要的值,且可加入習知 的緩衝劑(例如擰檬酸鹽緩衝劑)以將pH維持在上述想要的 範圍内。 該經口的液體醫藥組合物包含一種或多種防腐劑,以 減低或防止在多次劑量容器中生長微生物。可依一些標準 10 來選擇防腐劑。想要的性質包括(但不限於)在pH 5.5至叉〇 間具有足夠的滅菌活性;在組成物pH上有最小的影響;在 調味上具有最小有害的影響;合適於經口傳遞;在2。(:至8 °(:下儲存時具有足夠的溶解度;不與前伽巴素反應;不與 其它配方組分反應;及可在ICH條件下安定二年。除了滅菌 15 性質外,這些標準亦可應用在該液體醫藥製劑之其它賦形 劑中。 如可在貫例中看見,一些常見的防腐劑並不滿足這些 標準。例如,使用山梨酸與前伽巴素會造成溶液變色且無 法接受之PH偏移至5·0(其似乎有利於内醯胺形成)。如在實 20例中提及,甘油並不依從現行版歐洲藥典(第5版,2004)之 需求。其它常見的防腐劑(諸如乙醇)並不合適於使用在兒科 配方中。 雖然無法接受一些更常見的防腐劑,但已發現多種對 羥苯甲酸酯類在含前伽巴素的經口液體醫藥組合物中為有 11 !27923〇 用的滅菌劑。有用的對經苯甲酸_包括對經苯酸甲醋及 對經苯酸乙西旨,其可單獨使用或組合著使用其中例如對 經笨酸甲醋之存在濃度為至少約2毫克/毫升及對經苯酸乙 顆之存在濃度為至少約〇.5毫克/毫升。有用的對經苯甲酸酿 5組合包括對經苯酸甲醋之量至少為對經笨酸乙醋之量的約 3倍,但是不多於對羥苯酸乙酯之量的約5倍(以重量計)。 該經口的液體醫藥組合物亦包括至少一種味道遮蓋 劑。該味道遮蓋劑包括變甜劑及調味劑,其可單獨使用或 組合著使用。雖然兒科配方通常會避免使用會生麵的糖類 ίο作為變甜劑,但常見的非生齲糖類(木糖醇及甘油)會在5它 之儲存條件下從溶液中沉澱出,此使其不合適於使用在該 液體西藥配方中。隨後的§式驗指出糖精納在下仍然存在 於溶液中且與配方中的其它組分相容。糖精鈉可以至少約 0.5¾克/¾升之濃度存在於該液體醫藥組合物中,然而其更 15典型的存在濃度為至少約2毫克/毫升。 除了變甜劑外,該液體醫藥組合物可包括一調味劑以 遮蓋前伽巴素的苦味。有用的調味劑包括多種水果風味(例 如,柳橙、櫻桃、草莓、葡萄等等)及薄荷風味,其如防腐 劑般不會在該液體醫藥組合物之製備期間或在儲存期間與 20前伽巴素反應。該不反應的調味劑包括缺乏羰基(即,醛及 酮)那些。因此,有用的調味劑包括草莓風味2〇742〇(其可從 哈門(HAARMANN)&雷莫(REIMER)購得)及柳撥風味 9/055600(其可從追夠扣(DRAGOCO)購得)。 該液體醫藥組合物可選擇性包括一黏度控制劑以提昇 12 !279230 、、、a物的Ιέ度。;^加勘度可改善該組成物之處理且顯露 出可改善該醫藥製劑之味道。有用的黏度控制劑包括經乙 基、截、准素汽原膠及其類似物,其可各別使用或組合著使 用。可使用的黏度控制劑濃度至少約2毫克/毫升上至濃度 5 約5毫克/毫升。 又 可讨田述在下列實例6至9中般製備該含前伽巴素之經 口液體醫藥組合物。所產生之糖漿似的醫藥組合物可裝填 至單人知i或夕-人劑畺各器中。包含二個半劑量之經塗佈 的鋁箔之雙藥囊可有用地作為單次劑量容器。多次劑量容 1〇器准許改變服用體積且可提供適當的劑量輔助物(例如,量 杯或移液管)。該多次劑量容器可為一裝配有防止小孩開啟 的鎖之玻璃或塑膠瓶。有用的閉合構造包括内襯著聚乙烯 泡沫塑料那些。 實例 15 下列實例意欲作為例證且非為限制,並顯示出本發明 的特定具體實施例。 實例1至實例5 表1列出包含前伽巴素及不同防腐劑(包括山梨酸、對 羥苯酸甲酯、對羥苯酸乙酯及甘油)之液體醫藥組合物,其 20 典型滅菌功效試驗的結果。在表1所顯示的全部實例中,兮 前伽巴素濃度為15毫克/毫升,且加入足夠量的純水以提供 所提及的配料量。在表1中,註解“符合Ph· Eur·”及“沒有通 過Ph. Eur.”指為該試驗結果是否符合或沒有通過如在現行 版歐洲藥典(第5版,2004)中所定義的微生物限制試驗:每 13 1279230 克1000個細菌(最大);每克100個酵母菌及黴菌(最大);及 無大腸桿菌。 實例6至實例9 表2列出接受穩定性試驗之包括前伽巴素的典型液體 5 醫藥組合物。在表2所顯示之全部實例中,加入足夠量的純 水以提供5升的配料量。實例6及實例7使用不同的調味劑, 但是其它方面相同。實例8及實例9類似於實例6,除了藉由 各別加入0·lNHCl及0·lNNaOH將pH調整成5·5及pH7·0外。 對實例6至9來說,每個皆將經純化及無菌的水(約4·5 10 升)放置在一配備有攪拌器之溫度經控制的容器中。將該容 器的成分加熱至80°C。將對羥苯酸甲酯(10克)及對羥苯酸乙 酯(2.5克)攪拌進入熱水。在獲得透明溶液後,加入糖精鈉 (5克)。其次,以小部分加入羥乙基纖維素(45克)且伴隨著 充分攪拌以避免結塊。將所產生的液體混合物冷卻至30 15 °C,及以小部分在授拌下加入前伽巴素(75克)。在前伽巴素 完全溶解後,繼續冷卻且在25°C至30°C下加入調味劑(10克 的草莓風味或5克的柳橙風味)。攪拌該混合物至少10分 鐘,以均相地分散每種調味劑。使用迷你坡爾 (MILLEPOIUE)®薄膜過ί慮器(具有孔洞尺寸10微米之纖維 20 素醋酸ί旨)來過濾該溶液。加入純水與0· IN HC1或0· 1Ν NaOH(實例8及9),使得總配料量為5升。將所產生的液體醫 藥組合物貯存在密封容器中。 對每個在實例6至9中的經口液體前伽巴素配方進行穩 定性測試。在該組成物開始製備後進行穩定性測試,且計 14 1279230 劃在5 C下、在25°C及60%RH下和在30°C及60%RH下儲存 1、3、6、12、18及24個月後進行測試。穩定性測試方法包 括檢查該液體組成物的外觀及顏色,與前伽巴素及變質物 濃度、溶液pH及滅菌活性之分析(僅在25°c下)。 在儲存6個月後,配方呈透明或稍微不透明及無色或稍 微黃色。此外,在儲存6個月後,全部配料具有不多於〇1 重量%的内醯胺形式,且pH在5·4至7·〇間,不管是否有調整 起始pH。最後,全部的配料皆符合在現行版歐洲藥典中所 提出的微生物限制。 10 實 例 體積 (升) 組分1 耄克/儲存z 毫升月數 1#^ 備註 ^^ 1 4 山梨酸 2 無測里 pH偏移,果 木糖醇CNF 200 的粒子,粉紅色 2 5 對羥苯酸乙酯 0.3 0 符合Ph.Eur· 對羥苯酸甲酯 1.2 3 沒有通過Ph.Eur. 糖精鈉 0.5 (黑麴菌(A. niger)) 3 5 對羥苯酸乙酯 0.4 0 符合Ph.Eur· 對羥苯酸甲酯 1.6 1 符合Ph. Eur. 糖精鈉 0.5 3 沒有通過Ph. Eur. 羥乙基纖維素250 HHX 3 (黑麴菌) 4 5 甘油最少99% 400 0 沒有通過Ph. Eur. 黴菌 糖精鈉 0.6 1 (黑麴菌,白色念珠菌 0.1NHC1(毫升) 0.01 (C.albicans)) 沒有通過Ph· Eur.(黑麴 菌,白色念珠菌) 5 5 對羥苯酸乙酯 0.5 0 符合Ph.Eur. 對羥苯酸甲酯 2 1 符合Ph. Eur. 糖精鈉 1 3 符合Ph· Eur· 羥乙基纖維素250 HHX 3 6 符合Ph. Eur. — 草莓風味 2.在251及60%相對溼度(RH)下貯';^ 15 1279230 表2.水性前伽巴素組合物 組分 6 實例 7 82 93 前伽巴素 15 15 15 15 對羥苯酸甲酯 2 2 2 2 對羥苯酸乙酯 0.5 0.5 0.5 0.5 糖精鈉 1 1 1 1 羥乙基纖維素250 HHX 3 3 3 3 草莓風味207420 H&R 柳橙風味9/055600追夠扣 2 1 2 2 1. 加入純水以提供5升的配料量。 2. 加入0.1N HC1以將pH調整至5.5。 3. 加入0.1N NaOH以將pH調整至7.0。 5 應注意的是,如在此專利說明書及附加申請專利範圍 中所使用之單數物件(諸如“一”、“一種”及“該”),除非上下 文有明確顯示,否則可指為一個物體或複數個物體。因此, 例如,參考至一包含“一化合物”之組成物,其可包括單一 種化合物或二種或更多種化合物。 10 需了解的是,上述說明意欲作為例證且非為限制。熟 知此技藝之人士可在讀取上述說明後明瞭許多具體實施 例。因此,本發明之範圍應該不是參考上述說明來決定, 而是應該參考所附加的申請專利範圍與此申請專利範圍所 發表的最大同等物範圍來決定。全部物件及參考資料之公 15 告(包括專利、專利申請案及公告),其全文及全部目的皆以 參考之方式併於本文。 【圖式簡單說明】 (無) 【主要元件符號說明】 (無) 16
Claims (1)
- 年月日修(更)正本 十、申請專利範圍: 第93139422號專射請冑_請專利範圍修正本腦年1〇月 1· 一種用來口服給藥之液體醫藥組合物,其包括: 月ίι伽巴素或一其醫藥上可接受的鹽或複合物; 水; 至少一種防腐劑; 至少一種味道遮蓋劑;及 可選擇的黏度控制劑; 其中该液體醫藥組合物之pH至少為5.5,但是不大於 7 · 〇,及該至少一種防腐劑包含對羥苯酸甲酯及對羥苯酸乙 酯,對羥苯酸甲酯以至少2毫克/毫升之濃度及對羥苯酸乙 酯以至少0·5毫克/毫升之濃度存在該液體醫藥組合物中。 2·如申請專利範圍第1項之液體醫藥組合物,其中該液體醫藥 組合物之pH至少為5.5,但是不大於6.5。 3 ·如申印專利範圍弟2項之液體醫藥組合物,其中該液體醫藥 組合物之pH至少為5·8,但是不大於6.2。 4.如申請專利範圍第項任一項之液體醫藥組合物,其中 該前伽巴素存在於該液體醫藥組合物中之濃度至少為1〇毫 克/毫升。 5·如申請專利範圍第4項之液體醫藥組合物,其中該前伽巴素 存在於该液體醫藥組合物中之濃度至少為15毫克/毫升。 6·如申請專利範圍第1項之液體醫藥組合物,其中該味道遮蓋 Μ包括 變甜劑。 7·如申請專利範圍第6項之液體醫藥組合物,其中該變甜劑為 1279230 糖精鈉。 8. 如申請專利範圍第7項之液體醫藥組合物,其中該糖精鈉存 在於該液體醫藥組合物中之濃度至少為每毫升0.5毫克。 9. 如申請專利範圍第7項之液體醫藥組合物,其中該糖精鈉存 在於該液體醫藥組合物中之濃度至少為2毫克/毫升。 10. 如申請專利範圍第1項之液體醫藥組合物,其中該味道遮蓋 劑包括一調味劑,該調味劑之特徵為無幾基。 11. 如申請專利範圍第1項之液體醫藥組合物,其中該黏度控制 劑為羥乙基纖維素。
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TR201005241A1 (tr) * | 2010-05-25 | 2012-01-23 | Sanovel �La� San. Ve T�C. A.�. | Kontrollü salım sağlayan pregabalin solüsyon formülasyonu. |
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US5637767A (en) * | 1995-06-07 | 1997-06-10 | Warner-Lambert Company | Method of making (S)-3-(aminomethyl)-5-methylhexanoic acid |
HRP980342A2 (en) * | 1997-06-25 | 1999-02-28 | Warner Lambert Co | Anti-inflammatory method |
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AP2002002501A0 (en) * | 1999-10-07 | 2002-06-30 | Warner Lambert Co | Synergistic combinations of an NK1 receptor antagonist and a gaba structural analog. |
HU228815B1 (en) * | 2000-01-27 | 2013-05-28 | Warner Lambert Co | Asymmetric synthesis of pregabalin |
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AU2003222033A1 (en) * | 2002-03-20 | 2003-10-08 | Xenoport | Cyclic 1-(acyloxy)-alkyl prodrugs of gaba analogs, compositions and uses thereof |
-
2003
- 2003-12-18 EP EP03029117A patent/EP1543831A1/en not_active Withdrawn
-
2004
- 2004-12-06 AU AU2004308747A patent/AU2004308747A1/en not_active Abandoned
- 2004-12-06 BR BRPI0417585-9A patent/BRPI0417585A/pt not_active IP Right Cessation
- 2004-12-06 SG SG200803603-0A patent/SG143257A1/en unknown
- 2004-12-06 MX MXPA06006811A patent/MXPA06006811A/es unknown
- 2004-12-06 JP JP2006544577A patent/JP2007514728A/ja not_active Withdrawn
- 2004-12-06 WO PCT/IB2004/004029 patent/WO2005063229A1/en active Application Filing
- 2004-12-06 EP EP04801336A patent/EP1722773A1/en not_active Withdrawn
- 2004-12-06 SG SG200705273-1A patent/SG136119A1/en unknown
- 2004-12-06 CN CNA2004800374979A patent/CN1893938A/zh active Pending
- 2004-12-06 CA CA002549599A patent/CA2549599A1/en not_active Abandoned
- 2004-12-06 RU RU2006120946/15A patent/RU2352333C2/ru not_active IP Right Cessation
- 2004-12-06 KR KR1020067011926A patent/KR100841893B1/ko not_active IP Right Cessation
- 2004-12-17 MY MYPI20045225A patent/MY143561A/en unknown
- 2004-12-17 TW TW093139422A patent/TWI279230B/zh not_active IP Right Cessation
- 2004-12-17 US US11/016,511 patent/US20050171203A1/en not_active Abandoned
-
2006
- 2006-06-05 IL IL176129A patent/IL176129A0/en unknown
- 2006-06-07 ZA ZA200604656A patent/ZA200604656B/xx unknown
- 2006-07-07 NO NO20063178A patent/NO20063178L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
MXPA06006811A (es) | 2006-08-23 |
EP1722773A1 (en) | 2006-11-22 |
KR20060103336A (ko) | 2006-09-28 |
KR100841893B1 (ko) | 2008-06-26 |
WO2005063229A1 (en) | 2005-07-14 |
ZA200604656B (en) | 2007-10-31 |
TW200520751A (en) | 2005-07-01 |
JP2007514728A (ja) | 2007-06-07 |
BRPI0417585A (pt) | 2007-03-13 |
CA2549599A1 (en) | 2005-07-14 |
NO20063178L (no) | 2006-06-19 |
MY143561A (en) | 2011-05-31 |
SG136119A1 (en) | 2007-10-29 |
US20050171203A1 (en) | 2005-08-04 |
AU2004308747A1 (en) | 2005-07-14 |
CN1893938A (zh) | 2007-01-10 |
SG143257A1 (en) | 2008-06-27 |
RU2352333C2 (ru) | 2009-04-20 |
EP1543831A1 (en) | 2005-06-22 |
IL176129A0 (en) | 2006-10-05 |
RU2006120946A (ru) | 2008-01-27 |
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