JPH06172208A - 医薬物質を持続的に制御して放出できる組成物およびその製造方法 - Google Patents
医薬物質を持続的に制御して放出できる組成物およびその製造方法Info
- Publication number
- JPH06172208A JPH06172208A JP4194310A JP19431092A JPH06172208A JP H06172208 A JPH06172208 A JP H06172208A JP 4194310 A JP4194310 A JP 4194310A JP 19431092 A JP19431092 A JP 19431092A JP H06172208 A JPH06172208 A JP H06172208A
- Authority
- JP
- Japan
- Prior art keywords
- water
- lactic acid
- peptide
- copolymer
- microspheres
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 230000002459 sustained effect Effects 0.000 title claims abstract description 8
- 238000013270 controlled release Methods 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 239000008186 active pharmaceutical agent Substances 0.000 title description 2
- 229940088679 drug related substance Drugs 0.000 title description 2
- 108090000765 processed proteins & peptides Proteins 0.000 claims abstract description 41
- 239000004005 microsphere Substances 0.000 claims abstract description 27
- 150000003839 salts Chemical class 0.000 claims abstract description 25
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000126 substance Substances 0.000 claims abstract description 21
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 8
- 239000004310 lactic acid Substances 0.000 claims abstract description 8
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 5
- 229920000954 Polyglycolide Polymers 0.000 claims abstract description 4
- QIVBCDIJIAJPQS-SECBINFHSA-N D-tryptophane Chemical compound C1=CC=C2C(C[C@@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-SECBINFHSA-N 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 22
- 239000000839 emulsion Substances 0.000 claims description 13
- 239000012736 aqueous medium Substances 0.000 claims description 11
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000012071 phase Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229920002253 Tannate Polymers 0.000 claims description 3
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 claims description 3
- 239000007764 o/w emulsion Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- 238000007911 parenteral administration Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 239000002609 medium Substances 0.000 claims description 2
- XBBVURRQGJPTHH-UHFFFAOYSA-N 2-hydroxyacetic acid;2-hydroxypropanoic acid Chemical compound OCC(O)=O.CC(O)C(O)=O XBBVURRQGJPTHH-UHFFFAOYSA-N 0.000 claims 1
- 229920002988 biodegradable polymer Polymers 0.000 abstract description 5
- 239000004621 biodegradable polymer Substances 0.000 abstract description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- 239000002904 solvent Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000003756 stirring Methods 0.000 description 7
- 229920001606 poly(lactic acid-co-glycolic acid) Polymers 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 3
- XLXSAKCOAKORKW-UHFFFAOYSA-N gonadorelin Chemical class C1CCC(C(=O)NCC(N)=O)N1C(=O)C(CCCN=C(N)N)NC(=O)C(CC(C)C)NC(=O)CNC(=O)C(NC(=O)C(CO)NC(=O)C(CC=1C2=CC=CC=C2NC=1)NC(=O)C(CC=1NC=NC=1)NC(=O)C1NC(=O)CC1)CC1=CC=C(O)C=C1 XLXSAKCOAKORKW-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000700159 Rattus Species 0.000 description 2
- MUMGGOZAMZWBJJ-DYKIIFRCSA-N Testostosterone Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 MUMGGOZAMZWBJJ-DYKIIFRCSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- DFZVZEMNPGABKO-SSDOTTSWSA-N (2r)-2-amino-3-pyridin-3-ylpropanoic acid Chemical compound OC(=O)[C@H](N)CC1=CC=CN=C1 DFZVZEMNPGABKO-SSDOTTSWSA-N 0.000 description 1
- JPZXHKDZASGCLU-GFCCVEGCSA-N 3-(2-Naphthyl)-D-Alanine Chemical compound C1=CC=CC2=CC(C[C@@H](N)C(O)=O)=CC=C21 JPZXHKDZASGCLU-GFCCVEGCSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 159000000021 acetate salts Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000002434 gonadorelin derivative Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 238000010255 intramuscular injection Methods 0.000 description 1
- 239000007927 intramuscular injection Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000012907 medicinal substance Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- -1 pamoate Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 210000001625 seminal vesicle Anatomy 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000010254 subcutaneous injection Methods 0.000 description 1
- 239000007929 subcutaneous injection Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 229960003604 testosterone Drugs 0.000 description 1
- 201000010653 vesiculitis Diseases 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/08—Peptides having 5 to 11 amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/25—Growth hormone-releasing factor [GH-RF], i.e. somatoliberin
-
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- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/08—Peptides having 5 to 11 amino acids
- A61K38/09—Luteinising hormone-releasing hormone [LHRH], i.e. Gonadotropin-releasing hormone [GnRH]; Related peptides
-
- A—HUMAN NECESSITIES
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- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/18—Growth factors; Growth regulators
- A61K38/1808—Epidermal growth factor [EGF] urogastrone
-
- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/19—Cytokines; Lymphokines; Interferons
- A61K38/21—Interferons [IFN]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/2242—Atrial natriuretic factor complex: Atriopeptins, atrial natriuretic protein [ANP]; Cardionatrin, Cardiodilatin
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- A—HUMAN NECESSITIES
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-
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- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
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- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
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- A61K38/33—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans derived from pro-opiomelanocortin, pro-enkephalin or pro-dynorphin
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- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1629—Organic macromolecular compounds
- A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
- A61K9/1647—Polyesters, e.g. poly(lactide-co-glycolide)
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- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1682—Processes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/23—Luteinising hormone-releasing hormone [LHRH]; Related peptides
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Abstract
物質の微小球の形態で得られる医薬ペプチド物質を持続
的に制御して放出できる組成物を提供する。 【構成】一般式(I)で表される医薬ペプチド物質の不
溶性塩が生分解性高分子物質(代表具体例;ポリラクチ
ド,ポリグリコリドまたは乳酸とグリコール酸との共重
合体)の微小球の形態にある。持続的に制御して放出で
きる組成物,ならびにその製造方法。 (式中R3 はD−PalまたはD−Trpである)
Description
した生分解性の高分子物質の微小球の形態で得られる医
薬ペプチド物質を持続的に制御して放出できる組成物と
その製造方法に関するものである。
ルまたは生分解性の多孔性マトリックス、例えば種々の
大きさの微小球または微小粒子等を利用して、医薬物質
の持続性のある制御された放出が可能な組成物を製造す
るための様々な方法がこれまでに提案されている。この
点に関し、水溶性薬剤の相分離によるマイクロカプセル
化を開示している欧州特許出願0052510号、ポリ
ラクチドまたはコポリラクチド−グリコライドを主成分
とする生分解性のインプラントまたは多孔性マトリック
スの製造方法を開示している欧州特許出願005848
1号および米国特許出願3976071号を挙げること
ができる。これらの技術はまず支持体として使用する生
分解性の重合体または共重合体を有機溶媒に溶解し、所
望により医薬物質そのものも溶解するという方法を用い
ている。
ことのできるその他の方法は、乳化方法を用いており、
この方法の最重要段階は、高分子物質の有機溶液および
ペプチドの水溶液から水中油形のエマルジョンを得るこ
とである。この点については米国特許出願438497
5号、3891570号、4389330号、3737
337号、4652441号およびWO90/1336
1号を参照されたい。
も、従来の技術は、水溶性の大きい活性ペプチドの損失
を可能な限り低減するために、例えば二重乳化のような
複雑で制御が困難な方法を用いることを余儀なくされて
いた。
水性媒体に移すという本発明の方法では、意外にも、今
日まで知られている方法の欠点を克服できる。
塩を水不溶性ペプチド塩に変換することにより、用いる
成分、特に用いる溶媒および「非溶媒」の相対的溶解度
を利用した極めて新しい手段を当業者に提供することを
目的としている。
に、本発明においては、(式中R3 はD−Palまたは
D−Trpである)のペプチドの水不溶性の塩を含む生
分解性の高分子物質の微小球の形態の式Iの医薬ペプチ
ド物質を持続的に制御して放出できる組成物を提供す
る。
目的は、下記の特徴を有する方法を提供することであ
る。
のペプチド塩にそれぞれ変換し; b.水不溶性ペプチド塩を、溶解状態で生分解性高分子
物質を含有する有機媒体に懸濁し; c.有機懸濁液を水性媒体に分散させて連続相のエマル
ジョンを形成し; d.エマルジョンを過剰の水性媒体に移し、最後に得ら
れた微小球を液相より分離することを特徴とする上記組
成物の製造方法に関する。
これらはホルモン依存性の疾患の治療に有効である。特
段の記載が無い限り、式(I)のアミノ酸はL型であ
る。D−NalはD−3−(2−ナフチル)−アラニン
を指し、D−PalはD−3−(3−ピリジル)−アラ
ニンを指す。
不溶性の塩を含む生分解性の高分子物質の微小球の形態
である。例えば水不溶性の塩5重量%を含むこの組成物
は、人間または動物に非経腸的に投与した後、数日間に
渡り、ペプチドを持続的に放出できる。
り、水溶性ペプチド塩を水不溶性ペプチド塩に変換す
る。「水溶性」という用語は、25℃で0.1mg/m
l以上の水溶性、好ましくは1.0mg/ml以上の水
溶性を有するペプチド塩を指す。
ml以下の水溶性を有するペプチド塩を指す。パモエー
ト(pamoate)、タンニン酸塩、ステアリン酸塩
またはパルミチン酸塩のようなペプチド塩がこの定義を
満たす。
ド、ポリグコライド、または乳酸とグリコール酸の共重
合体のような重合体が最も一般的に使用されている。
コール酸の共重合体(PLGA)、特に、乳酸単位45
〜90%(モル)を含有するL−またはD,L−乳酸と
グリコール酸単位55〜10%(モル)との共重合体を
挙げることができる。
チレンのような有機溶媒を使用できるが、何れの場合に
おいても、溶媒は選択されたペプチドまたはペプチド塩
に対して「非溶媒」でなければならない。
塩を高分子物質有機溶液に懸濁した後、この溶液を所定
量の水性媒体、最も一般的には適切な界面活性剤を添加
した水と混合する。その目的は水中油形型の均質なエマ
ルジョンを急速に形成するためであり、水性媒体は連続
相を形成するためのものである。このようなエマルジョ
ンを調製する際には、この方法によって得られる微小球
の大きさや構造に影響する種々の要因を考慮しなければ
ならない。考慮すべき要因は水性媒体への有機溶液の添
加率、温度、攪拌速度、即ち分散エネルギー(超音波処
理)などであり、最後のパラメーターは最終微小球の大
きさに特に影響する。意図する目的を達成するのに適す
る乳化の方法および条件は当業者が選択できる。
相の体積比を調節すること、特に、水相に対する有機相
の相対体積を低下させることが好都合であることが解っ
ている。ある場合には、使用する有機溶媒、例えば塩化
メチレンの揮発性のために、攪拌中に自然に起こる蒸発
だけで上記目的は十分達成でき、別の場合には減圧下で
蒸発させることによりこの望ましい現象を加速してよ
い。
れを過剰量の水性媒体、最も一般的には水に移す。この
操作の目的は、微小球内になお残存する有機溶媒を抽出
することにより、エマルジョン中に形成した初期の微小
球の硬化を促進することである。この操作の別の目的
は、最終硬化段階で重合体本体内に残存する微量の界面
活性剤を同時に除去することである。水は例えばPLG
Aのような生分解性高分子および微小球内に閉じ込めら
れているペプチド塩の両方に対して「非溶媒」である。
この状況は、例えば塩化メチレンのような残存重合体溶
媒の不可欠な抽出のために特に好ましい。
後、硬化した微小球を従来の方法、例えば遠心分離、濾
過または重力による沈降等で回収する。洗浄、精製およ
び乾燥の操作も従来の方法を用いることができる。
らの実施例で使用する物質および操作条件は本発明をい
かなる点でも限定するものではない。
法により相当するパモエートに変換し、次に平均約10
ミクロンの粒子が得られるように処理を行った。
ン20mlに懸濁し、この懸濁液を、D,L−乳酸およ
びグリコール酸(の75:25共重合体(PLGA)
(モル%/HFIPの固有粘度0.82)1.683g
を溶解した塩化メチレン20mlに添加した。混合物は
室温で攪拌下に調製し、完全に均質な懸濁液を得た。
キシセルロースを含有する水500mlに一回で注ぎ込
み、混合物の攪拌を室温で約90分継続した(攪拌速度
900rpm)。試料採取し、得られた微小球を顕微鏡
で観察することにより、エマルジョンの形成を平均30
分おきの一定時間間隔で観測した。
マルジョンを約10℃に維持されている水2lに一回で
移し、均質になるまで混合物を攪拌した。
し、遠心分離と水洗浄を交互に継続して行うことにより
精製し、最後に濾過して減圧下で乾燥した。PLGA微
小球1.61gを以上のようにして回収し(収率80
%)、これには直径100ミクロン未満の粒子が94%
を超える量含有されていた(最大55〜85ミクロ
ン)。
PLCによるペプチドの測定)の結果、微小球のパモエ
ート含有量は9.05重量%であった(理論値:10
%)。
マ線滅菌し、適切な滅菌溶媒中に懸濁した。生体内試験
(雄ラットにおける血中テストステロン濃度の測定)の
結果、活性物質が一定して放出されていることが確認さ
れた。
6gに対し、LHRH類縁体のパモエート0.634g
を用いて、実施例1と同様の方法を行なった。
%) 添加量:18.3%(理論値:20%) このようにして得られた微小球をガンマ線滅菌し、適切
な滅菌溶媒中に懸濁した。生体内試験(雄ラットにおけ
る類縁体の血清中濃度の測定)によれば、少なくとも2
4時間に渡り、活性物質が生物学的に有意義な量で一定
して放出されていることが確認された。
験対象で実施した分析でも確認され、精巣の重量現象は
少なくとも80%であり、精のうの重量現象は少なくと
も90%であった。
にして実施した。
者を同様の処理に付し、同様の結果を得た。
きさを正確に調節できる点であり、この調節は主にエマ
ルジョンの調製中に(例えば攪拌速度)を調節して行な
う。別の利点は条件に応じて5、10または20重量%
またはこれより多い大量のペプチドを添加できる点であ
る。更にペプチドまたはペプチド塩の配合の収率は極め
て高く、これは主に選択されたペプチドを予め水溶性の
誘導体から水不溶性の塩に変換することによるものであ
る。
た微小球は、適切に滅菌した後、例えば筋肉内または皮
下注射により、非経腸的投与で使用する懸濁液の調製の
ために用いる。
Claims (11)
- 【請求項1】 下記式(I): 【化1】 (式中R3 はD−PalまたはD−Trpである)で表
される医薬ペプチド物質を持続的に制御して放出できる
組成物において、前式(I)で表されるペプチドの水不
溶性塩を含む生分解性高分子物質の微小球の形態である
ことを特徴とする組成物。 - 【請求項2】 水不溶性ペプチドがパモエート、タンニ
ン酸塩、ステアリン酸塩またはパルミチン酸塩である請
求項1に記載の組成物。 - 【請求項3】 生分解性高分子物質がポリラクチド、ポ
リグリコリド、または乳酸とグリコール酸の共重合体で
ある請求項1または2に記載の組成物。 - 【請求項4】 乳酸とグリコール酸の共重合体が、乳酸
単位45〜90%(モル)を含有するL−またはD,L
−乳酸と、グリコール酸単位55〜10%(モル)との
共重合体である請求項3に記載の組成物。 - 【請求項5】 式(I)のペプチドのパモエート塩少な
くとも5重量%を含む、乳酸グリコール酸75:25
(モル%)共重合体の微小球の形態の請求項1〜4の何
れか1項に記載の組成物。 - 【請求項6】 請求項1に記載の組成物を薬用製剤に含
有させて非経腸投与することを特徴とする前記組成物の
使用方法。 - 【請求項7】a.式(I)の水溶性ペプチド塩を水不溶
性ペプチド塩に変換する工程と; b.水不溶性ペプチド塩を、溶解状態で生分解性高分子
物質を含有する有機媒体に懸濁する工程と; c.有機懸濁液を水性媒体に分散させて連続相のエマル
ジョンを形成する工程と; d.エマルジョンを過剰の水性媒体に移し、最後に得ら
れた微小球を液相より分離する工程とからなる請求項1
に記載の組成物の製造方法。 - 【請求項8】 水中油形エマルジョンを過剰の水性媒体
に移す前に油相を形成する有機溶媒の部分的蒸発を行な
う請求項7に記載の方法。 - 【請求項9】 水不溶性ペプチド塩がパモエート、タン
ニン酸塩、ステアリン酸塩またはパルミチン酸塩である
請求項7に記載の方法。 - 【請求項10】 生分解性高分子物質がポリラクチド、
ポリグリコリド、または乳酸とグリコール酸の共重合体
である請求項7〜9の何れか1項に記載の方法。 - 【請求項11】 乳酸とグリコール酸の共重合体が、乳
酸単位45〜90%(モル)を含有するL−またはD,
L−乳酸と、グリコール酸単位55〜10%(モル)と
の共重合体である請求項10に記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH02178/91-0 | 1991-07-22 | ||
| CH2178/91A CH683149A5 (fr) | 1991-07-22 | 1991-07-22 | Procédé pour la préparation de microsphères en matériau polymère biodégradable. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06172208A true JPH06172208A (ja) | 1994-06-21 |
| JP3600252B2 JP3600252B2 (ja) | 2004-12-15 |
Family
ID=4227716
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19431092A Expired - Fee Related JP3600252B2 (ja) | 1991-07-22 | 1992-07-21 | 医薬物質を持続的に制御して放出できる組成物 |
| JP4194313A Expired - Lifetime JP2842736B2 (ja) | 1991-07-22 | 1992-07-21 | 生分解性高分子物質の微小球の製造方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4194313A Expired - Lifetime JP2842736B2 (ja) | 1991-07-22 | 1992-07-21 | 生分解性高分子物質の微小球の製造方法 |
Country Status (40)
| Country | Link |
|---|---|
| US (2) | US5445832A (ja) |
| JP (2) | JP3600252B2 (ja) |
| KR (1) | KR930702018A (ja) |
| CN (1) | CN1054543C (ja) |
| AT (2) | AT403348B (ja) |
| AU (2) | AU652844B2 (ja) |
| BE (2) | BE1005696A3 (ja) |
| BR (1) | BR9205375A (ja) |
| CA (2) | CA2074322C (ja) |
| CH (2) | CH683149A5 (ja) |
| CZ (1) | CZ287585B6 (ja) |
| DE (3) | DE9219084U1 (ja) |
| DK (2) | DK176219B1 (ja) |
| EE (1) | EE03014B1 (ja) |
| ES (2) | ES2050070B1 (ja) |
| FI (2) | FI105318B (ja) |
| FR (2) | FR2680109B1 (ja) |
| GB (2) | GB2257909B (ja) |
| GR (2) | GR1002548B (ja) |
| HR (1) | HRP920229A2 (ja) |
| HU (1) | HU218203B (ja) |
| IE (2) | IE71199B1 (ja) |
| IL (2) | IL102591A (ja) |
| IT (2) | IT1259891B (ja) |
| LU (2) | LU88151A1 (ja) |
| MX (1) | MX9204268A (ja) |
| NL (2) | NL194576C (ja) |
| NO (2) | NO304057B1 (ja) |
| NZ (1) | NZ243643A (ja) |
| PH (1) | PH31564A (ja) |
| PL (1) | PL169387B1 (ja) |
| PT (2) | PT100712B (ja) |
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| SE (2) | SE512609C2 (ja) |
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| TW (1) | TW260610B (ja) |
| UA (1) | UA35569C2 (ja) |
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| JPWO2013172468A1 (ja) * | 2012-05-14 | 2016-01-12 | 帝人株式会社 | 滅菌組成物 |
| US10071061B2 (en) | 2012-05-14 | 2018-09-11 | Teijin Limited | Sterile composition |
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