JP6262843B2 - 潰瘍性大腸炎の治療のためのホスファチジルコリンを含む医薬製剤 - Google Patents
潰瘍性大腸炎の治療のためのホスファチジルコリンを含む医薬製剤 Download PDFInfo
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- JP6262843B2 JP6262843B2 JP2016504634A JP2016504634A JP6262843B2 JP 6262843 B2 JP6262843 B2 JP 6262843B2 JP 2016504634 A JP2016504634 A JP 2016504634A JP 2016504634 A JP2016504634 A JP 2016504634A JP 6262843 B2 JP6262843 B2 JP 6262843B2
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- phosphatidylcholine
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- ulcerative colitis
- phosphatidylcholine product
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/66—Phosphorus compounds
- A61K31/683—Diesters of a phosphorus acid with two hydroxy compounds, e.g. phosphatidylinositols
- A61K31/685—Diesters of a phosphorus acid with two hydroxy compounds, e.g. phosphatidylinositols one of the hydroxy compounds having nitrogen atoms, e.g. phosphatidylserine, lecithin
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5005—Wall or coating material
- A61K9/5021—Organic macromolecular compounds
- A61K9/5026—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
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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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
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- A—HUMAN NECESSITIES
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Landscapes
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
が含まれる。慢性炎症性疾患および潰瘍性大腸炎は、直腸単独よりも結腸により多くの影響を及ぼす。症状は、腸内の炎症の程度、および腸の内層が潰瘍化しているか、または否かにより変化する。また、慢性潰瘍性大腸炎は、肝臓における変化、硬化性胆管炎を生じることもあり、そして腸がんを発症するリスクを高めることもありうる。
a)式(I)、
R1は、12〜24個の炭素原子を有する飽和または不飽和脂肪酸の残基であり、そして
R2は、12〜24個の炭素原子を有する飽和または不飽和脂肪酸の残基である。
R1およびR2は、しばしば14〜22個の炭素原子を有する飽和または不飽和脂肪酸の残基である)の少なくとも1つのホスファチジルコリン生成物(PC)を含む。
55〜72 リノール酸
10〜18 パルミチン酸
07〜15 オレイン酸
02〜08 リノレン酸
02〜08 ステアリン酸
を含有する。
59〜70 リノール酸
12〜17 パルミチン酸
07〜15 オレイン酸
03〜07 リノレン酸
02〜05 ステアリン酸
からなる。
b)少なくとも1つの薬学的に許容しうる賦形剤(それは、リン脂質でない)
を含む。
59〜70 リノール酸
12〜17 パルミチン酸
07〜15 オレイン酸(しばしば>10〜12)
03〜07 リノレン酸
02〜05 ステアリン酸
を含有する。
62〜68 リノール酸
12〜15 パルミチン酸
07〜12 オレイン酸(しばしば>10〜12)
05〜07 リノレン酸
02〜04 ステアリン酸
の通りである。
55〜72 リノール酸
10〜18 パルミチン酸
07〜15 オレイン酸
02〜08 リノレン酸
02〜08 ステアリン酸
を含有する、ペレット剤または錠剤またはカプセル剤または顆粒剤を調製するステップと、
次いで、腸溶性ポリマーコーティングの少なくとも1つの層を有するペレット剤またはカプセル剤または顆粒剤または錠剤を提供するステップと
を含む方法である。好ましいPC生成物(より多くの正確に定められた脂肪酸残基を有する)は、上に記載されたこの方法によって調製することになっている。
62〜66 リノール酸
12〜15 パルミチン酸
>10〜12 オレイン酸
05〜07 リノレン酸
02〜04 ステアリン酸
を含有する(または本質的に、それらからなる)ものは、高純度で大量(例えば100キログラム)に、容易に製造することができる。発明を特許請求の範囲および以下の実施例によってさらに説明する。
27質量%の式(I)の特定のホスファチジルコリン生成物(PC)を含有し、以下の量の脂肪酸(PC中の脂肪酸の総量の質量パーセントで):
64 リノール酸
14 パルミチン酸
11 オレイン酸
06 リノレン酸
04 ステアリン酸
01 他のC14〜C22脂肪酸
を含有する、ペレット剤(直径0.5〜1.8mm)の形態で医薬製剤を製造する。
A)PCコアに関して:
26.96 PC(少量のα−トコフェロールを含む)
0.03 パルミチン酸アスコルビル(抗酸化剤)および/またはα−トコフェロール
34.09 微結晶性セルロース(アビセル(Avicel)(登録商標)PH102;結合剤)
4.88 コロイド状水和シリカ(シロイド(Syloid)(登録商標)244FP;結合剤)
1,39 コロイド状無水シリカ(Carb−O−Sil M5P;崩壊剤)
2.08 クロスカルメロースナトリウム(Ac−di−Sol;崩壊剤)。
B)コーティングに関して:
1.21 ヒドロキシプロピル−メチル−セルロース(ヒプロメロース、ファーマコート606)
0.05 ポリエチレングリコール(マクロゴール6000;可塑剤)
2.68 タルク(抗粘着剤)
24.16 オイドラギット(登録商標)L 30 D−55(被膜形成剤)
2.47 トリエチルシトレート(可塑剤)。
製剤は、例えば、以下のような技術範囲で製造することができる:
実施例1による特定のホスファチジルコリン生成物(PC)を含有するペレット剤をさまざまな条件下で安定性に関して試験した。酸性条件下(pH1.0;0.1N HCl)でのPCの放出は、120分後に10質量%未満であった。ph6.0でさらに60分後、およびpH7.2でさらに60分後、全3つの試験媒体上での放出は、75質量%を超えた。
知られている遅延放出ホスファチジルコリン製剤(Stremmelら)は、著しく安定性が劣ることが見いだされた。冷却貯蔵(5℃、プラス/マイナス3℃)で4ヵ月後、顆粒剤は、リゾPC(PCと比べて)=13%の含量を示した。室温(25℃プラス/マイナス2℃)で3および6ヵ月の貯蔵後、以下の範囲の試験結果:アッセイPC(初期値との比較)97.8〜85.9%の間およびリゾPC(PCとの比較)9.6〜14.0%の間が見いだされた。
メサラジン難治性の潰瘍性大腸炎における調節放出PCの有効性および安全性を示すため、実施例1の特定のホスファチジルコリン生成物(PC)を含有するペレット剤を潰瘍性大腸炎の患者において試験した。多施設第IIb相試験において、156名の患者を含む、プラセボ対照平行群4群デザインを用いた。4つの独立した無作為化された群において、プラセボならびにPC0.8g、1.6gおよび3.2gの日用量を適用した。
標準の商業的に入手可能な硬ゼラチンカプセル剤(標準サイズ0〜4)を用いることによって、活性成分として実施例1の特定のPCを含有する第2の放出制御製剤として、カプセル剤を製剤化する。
これらに、実施例1のホスファチジルコリン生成物と油性賦形剤(65%PC/35%賦形剤の質量比のミグリオール812)との混合物、または実施例1のホスファチジルコリン生成物(65質量%)とツウィーン80(17.5質量%)とミグリオール(17.5質量%)との混合物のいずれかを充填する。潰瘍性大腸炎治療の遅延放出製剤を提供するため、これらのゼラチンカプセルを、メタクリル酸およびエチル−アクリレートをベースとするアニオンポリマーの層(例えば、上記の生成物オイドラギット(登録商標))でコーティングする。
およびプラセボバルクペレット剤(C104)の製造方法は、同一である。以下の製造装置を適用した:
Claims (16)
- 医薬製剤であって、式(I)、
R1は、12〜24個の炭素原子を有する飽和または不飽和脂肪酸の残基であり、そしてR2は、12〜24個の炭素原子を有する飽和または不飽和脂肪酸の残基である)の少なくとも1つのホスファチジルコリン生成物(PC)を含み、そして該ホスファチジルコリン生成物(PC)が、以下の量の脂肪酸(PC中の脂肪酸の総量の質量パーセントで):
55〜72 リノール酸
10〜18 パルミチン酸
07〜15 オレイン酸
02〜08 リノレン酸
02〜08 ステアリン酸
および該ホスファチジルコリン生成物(PC)の遅延放出のための少なくとも1つの薬学的に許容しうる賦形剤を含有し、
該ホスファチジルコリン生成物(PC)が、製剤のすべての脂質/リン脂質成分の少なくとも94質量%となり、
医薬製剤は、製剤のすべての脂質/リン脂質成分に基づき、ホスファチジルイノシトール(PI)およびホスファチジルエタノールアミン(PE)を含まないか、または0.1
%w/w未満含有する、医薬製剤。 - 請求項1に記載の医薬製剤であって、式(I)(式中、R1は、14〜20個の炭素原子を有する飽和または不飽和脂肪酸の残基であり、そしてR2は、14〜20個の炭素原子を有する飽和または不飽和脂肪酸の残基である)の少なくとも1つのホスファチジルコリン生成物(PC)を含み、そして該ホスファチジルコリン生成物(PC)が、以下の量の脂肪酸(PC中の脂肪酸の総量の質量パーセントで):
59〜70 リノール酸
12〜17 パルミチン酸
07〜15 オレイン酸
03〜07 リノレン酸
02〜05 ステアリン酸
および少なくとも1つの薬学的に許容しうる賦形剤を含有し、該医薬製剤が、腸内に少なくとも50質量%、特に少なくとも70質量%の該ホスファチジルコリン生成物(PC)を放出する医薬製剤。 - 前記医薬製剤が式(I)の少なくとも1つのホスファチジルコリン生成物(PC)を含み、78質量%を超える、特に80質量%を超える脂肪酸残基R1およびR2が、18個の炭素原子を有する不飽和脂肪酸である、請求項1または請求項2に記載の医薬製剤。
- 前記医薬製剤が、ホスファチジルコリン生成物(PC)および胃酸耐性のある腸溶性ポリマーコーティングの少なくとも1つの層を含む、腸溶コーティングペレット、腸溶コーティングカプセル、腸溶コーティング顆粒または腸溶コーティング錠を含む、請求項1〜3のいずれか1項に記載の医薬製剤。
- 腸溶性ポリマーコーティングとホスファチジルコリン生成物(PC)との質量比が、3:1から1:3までであり、そしてPCが多単位剤形である、請求項1〜4のいずれか1項に記載の医薬製剤。
- 厚さ10〜500マイクロメートルの腸溶性ポリマーコーティングを有する、腸溶コーティングペレット、腸溶コーティングカプセル、腸溶コーティング顆粒または腸溶コーティング錠を含む、請求項1〜5のいずれか1項に記載の医薬製剤。
- 少なくとも120分間、胃酸(pH1)に耐性であるが、pH5.5またはそれ以上で120分以内にホスファチジルコリン生成物(PC)の少なくとも80%が製剤から放出可能である、腸溶性ポリマーコーティングによって保護されたホスファチジルコリン生成物(PC)を含む、請求項1〜6のいずれか1項に記載の医薬製剤。
- アクリル酸、メタクリル酸、アクリル酸エステルおよびメタクリル酸エステルのホモポリマーおよびコポリマーの群からの少なくとも1つの腸溶性ポリマーによる少なくとも1つのコーティングを含む、請求項1〜7のいずれか1項に記載の医薬製剤。
- 20〜30質量%の式(I)のホスファチジルコリン生成物(PC)および70〜80質量%の賦形剤を含む、請求項1〜8のいずれか1項に記載の医薬製剤。
- 冷却貯蔵(5℃プラス/マイナス3℃)で36ヵ月後、少なくとも95質量%のアッセイPC(公称値との比較)および5質量%未満のリゾPC(PCとの比較)の量を特徴とする、長期安定性を有する、請求項1〜9のいずれか1項に記載の医薬製剤。
- 式(I)の少なくとも1つのホスファチジルコリン生成物(PC)を含有する、ペレッ
トまたはカプセルまたは顆粒または錠を調製するステップと、次いでペレットまたはカプセルまたは顆粒または錠に少なくとも1つの腸溶性ポリマーコーティングの少なくとも1つの層を設けるステップとを含む、請求項1〜10のいずれか1項に記載の医薬製剤を製造する方法。 - 以下からの状態または疾患:潰瘍性大腸炎、クローン病、空置性大腸炎、感染性腸炎、感染性大腸炎、放射線照射による炎症および化学療法または化学物質による炎症の治療または予防のための、特に5−ASA難治性の患者における潰瘍性大腸炎の治療のための請求項1〜10のいずれか1項に記載の製剤。
- 潰瘍性大腸炎、クローン病または5−ASA難治性もしくはステロイド難治性の患者における潰瘍性大腸炎の治療または予防のための請求項12に記載の製剤。
- 5−ASA難治性の患者における潰瘍性大腸炎の治療または予防のための請求項12または13に記載の製剤であって、1日当たり式(I)のホスファチジルコリン生成物(PC)0.5〜8g、特に2〜6gの用量が適用される製剤。
- 5−ASA難治性の患者における潰瘍性大腸炎の治療または予防のための請求項12〜14のいずれか1項に記載の製剤であって、式(I)のホスファチジルコリン生成物(PC)の日用量が1日当たり2もしくは3回または4回適用される製剤。
- 5−ASA難治性の患者における潰瘍性大腸炎の治療のための請求項12〜15のいずれか1項に記載の製剤であって、式(I)のホスファチジルコリン生成物(PC)0.5〜8gの日用量が、単回投与容器中のPC含有ペレット剤の形態で適用される製剤。
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