JP2022553423A - すぐに使用可能な美容用組成物 - Google Patents
すぐに使用可能な美容用組成物 Download PDFInfo
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- JP2022553423A JP2022553423A JP2022524934A JP2022524934A JP2022553423A JP 2022553423 A JP2022553423 A JP 2022553423A JP 2022524934 A JP2022524934 A JP 2022524934A JP 2022524934 A JP2022524934 A JP 2022524934A JP 2022553423 A JP2022553423 A JP 2022553423A
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Abstract
Description
本出願は、2019年10月28日に出願された米国出願第62/926,935号の優先権の利益を主張し、その全体が参照により本明細書に組み込まれる。
本開示は、皮下または皮内注射用のすぐに使用可能なインプラントに関する。これは、ヒトにおいて、修復または形成手術、および美容皮膚科で、しわを充填するために、細線を充填するために、皮膚のひび割れを充填するために、傷跡を充填するために、歯肉組織を充填するために、体の様々な領域の形を変えるために、および顔の形を変えるために用いられる皮膚の充填剤として使用され得る。
本出願人は、ガラスバイアルに滅菌凍結乾燥粉末として供給されるSCULPTRAという商品名で製品を販売し、各バイアルは、ポリ-L-乳酸(PLLA)、カルボキシメチルセルロースナトリウム(CMC)、およびマンニトールを含有する。投与の前に、バイアルの内容物は、バイアルに水溶液または水を添加することによって再構成する必要がある。米国特許第7,731,758号(特許文献1)および同第8,414,657号(特許文献2)を参照されたい。
本開示は、全体として、安定したすぐに使用可能な注射可能インプラントおよびインプラントを用いて修復または美容皮膚手術を行う方法に関する。
本明細書に開示される組成物は、非動物起源の高分子マイクロスフィアまたは微粒子と、水およびセルロース誘導体ゲル化剤を含む、ヒドロゲルと、ポリソルベート80とを含む、すぐに使用可能な注射可能組成物である。本明細書に開示される方法は、修復または形成手術、美容皮膚科、顔の輪郭形成、体の輪郭形成、および歯肉増補のためのすぐに使用可能な注射可能組成物の使用方法である。
以下の用語は、当業者に十分に理解されていると考えられるが、以下の定義は、本開示の主題の説明を容易にするために記載される。
皮膚充填剤などの充填剤は、加齢に起因する、傷害に起因する、または顔、体、および内臓の後天的もしくは先天的変形に起因する体の硬組織または軟組織の輪郭欠損を修復、回復、または増補するために使用されている。充填剤は、しわおよび/または細線を減らし、失われた体積を回復させ、皮膚に潤いを与え、ほうれい線を柔らかくし、唇を増補および輪郭形成し、傷跡(窪み、肥厚性およびケロイド傷跡)を改善し、弱化した声帯を強化し、他の軟組織改善を提供するために使用される天然または合成物質であり得る。用いられている物質としては、脂肪、パラフィン、ヒトコラーゲン、ウシコラーゲン、シリコーン、ヒアルロン酸、乳酸、およびグリコール酸が挙げられる。1981年、ウシコラーゲンのFDA承認により、軟組織充填剤の新しい時代が生まれた。その後、多くの軟組織充填剤が現れた。現在および研究用充填剤の数の劇的な増加は、バイオテクノロジーの改善および社会における美容的外観の重視を含む多くの要因によって促進されている。新しい充填剤の導入に伴い、患者の美容転帰および安全性を最大化するために、リスク/便益プロファイルを評価し、それらの制限を定義することが継続的に必要である。
バックグラウンド緩衝液1
●塩化ナトリウムを添加した10mMのリン酸緩衝液を調製し、pH6.2に調整した。
●対応量のカルボキシメチルセルロース(22.5mg/ml)を攪拌しながら緩衝液にゆっくりと添加し、完全に溶解するまで攪拌条件下で一晩放置した。
●対応量のPS80を添加し(0.05%)、約20分間混合した。
●得られた溶液を125℃で8分間オートクレーブした。
●150mgの滅菌PLLAをバイアルに添加する。
●8mLのバックグラウンド緩衝液1を、PLLAを含有するバイアルに添加する。
●PLLAが適切に分散するまで、試料を1分間激しくボルテックスする。
バックグラウンド緩衝液2
●塩化ナトリウムを添加した10mMのリン酸緩衝液を調製し、pH6.2に調整した。
●対応量のカルボキシメチルセルロース(22.5mg/mL)を攪拌しながら緩衝液にゆっくりと添加し、完全に溶解するまで攪拌条件下で一晩放置した。
●対応量のPS80を添加し(0.05%)、約20分間混合した。
●対応量の塩酸リドカイン(2.667mg/mL)を添加し、約20分間混合した。
●150mgの未滅菌PLLAをバイアルに添加する。
●9mLのバックグラウンド緩衝液2を、PLLAを含有するバイアルに添加する。
●PLLAが適切に分散するまで、試料を1分間激しくボルテックスする。
●試料を125℃で8分間オートクレーブすることによって最終的に滅菌する。
いくつかの態様では、本開示は、修復または美容皮膚科処置を行う方法を含む。いくつかの態様では、修復または美容皮膚科処置は、対象に、本明細書に開示される組成物を注射することを含む。いくつかの態様では、注射は、真皮下、皮内、皮下、筋肉内、筋肉下、または歯肉内注射である。
非イオン性界面活性剤および親水コロイドの添加による治療用PLLA(ポリ-L-乳酸)分散液のコロイド特性の改善
実施例1は、実施例1~4で用いられる実験材料および設計を提供する。実施例は、以下のことを示す。(1)非イオン性界面活性剤の添加によりPLLAの泡(発泡)が排除される、(2)親水コロイド(高分子増粘剤)の添加によりPLLA粒子の沈降が遅くなる、および(3)沈降速度を遅くする際の親水コロイドの界面活性剤間の相乗効果。
●バイアルを通る光の透過率、これは、時間とともに分散した粒子が沈降するため、試料の濁度が減少するにつれて増加する。
●バイアルからの光の後方散乱、これは、不透明な発泡体または泡からの実質的なものであり、したがって、後方散乱値を使用して、時間とともに発泡体および泡の変化を追跡することができる。
非イオン性界面活性剤ポリソルベート80の添加によるPLLAの泡の排除
この実施例は、持続性PLLAの泡の存在に対する非イオン性界面活性剤の添加の効果を示す。
多糖ベースの親水コロイドカルボキシメチルセルロースナトリウムの添加によりPLLA粒子の沈降を遅くする
この実験は、親水コロイドの添加が分散液中のPLLA粒子の沈降にどのような影響を与えるかを示す。
非イオン性界面活性剤PS80と多糖ベースの親水コロイドカルボキシメチルセルロースとの間の相乗効果
本実験は、(a)沈降速度を遅くすること、および(b)PLLAの泡を排除する際に、界面活性剤と親水コロイド増粘剤との間に相乗効果があるかどうかを示す。
ポリ-L-乳酸(PLLA)の安定性のための緩衝液系
PLLAは水溶液中で加水分解され、これにより、塊状ポリマー粒子からの乳酸モノマーおよびオリゴマーの放出、ならびに塊状ポリマーの断片化がもたらされる。このプロセスは、溶液中および塊状ポリマー内の両方における分解生成物(PLLA断片またはモノマー)の存在によって自己触媒される。PLLAを水溶液中で滅菌および貯蔵することは、実質的な分解をもたら得、かつ、製剤特性の許容できない変更をもたらし得る。
未滅菌PLLA(18SO229)およびガンマ線滅菌PLLA(1830200)を試験した。
●5mLのMILLIQ水分散液中150mgのPLLAを調製した。
●90℃で2週間混合することにより、加速分解を評価した。
●水不溶性未分解材料を可溶性分解生成物から分離するために、0.22μmのMILIPOREフィルタを通して濾過した。
●濾液(水溶性部分)を、PLLAの、乳酸オリゴマー、そして乳酸モノマーへの分解を特定するために、1MのNaOHで処理した後、液体クロマトグラフィーにより分析した。
●フィルタ(水不溶性)部分の残余分をジクロロメタンに溶解し、ゲル透過クロマトグラフィー(GPC)により分析した。
●GPCの参照試料:未分解材料
○未処理-受領時のPLLA粉末をCH2Cl2に溶解した。
○濾取-CH2CL2に溶解した濾過された未分解PLLA分散液。
●90℃で分解された試料の残留物のある一部は、ジクロロメタンに可溶化されない。
●90℃で分解された試料に関しては、おそらくポリマーの低分子量分画のみが可溶化される一方で、高分子量ポリマーは依然として固相に残っている。
●出発物質のPLLA粉末および未分解試料については、溶解度に問題はなかった。
●40℃での分解は限られており、検出可能な乳酸モノマーはない。
●40℃で4日間分解した後のPLLA濾取の溶解度は十分であった(ごくわずかな量のみが不溶性であり、潜在的に不純物であった)。
●オートクレーブ時の分解は限られていた。
●オートクレーブ後のPLLA濾取の溶解度は十分であったが、ごくわずかな量のみが不溶性であった。
●滅菌および未滅菌PLLAに関しては、異なる場面で得られたGPC結果の再現性は良好であった。
濾取におけるPLLA回収に関しては、添加された凍結乾燥粉末の367.5mgごとに150mgのPLLAを想定した。しかしながら、SCULPTRA試料中のPLLA含有量の変動は、+/-2-%であり、したがって、SCULPTRA試料の濾取においてPLLAが少ないのは、PLLA分解の結果よりも、初期のPLLA含有量変動の結果である可能性が高い。
●安定剤-例えば、PLLA粒子に吸着し、PEO基を溶液の大部分に曝露するポリマーを使用することによって、粒子間の疎水性相互作用によって駆動される凝集を防止する。
●増粘剤-ヒドロゲル型の構造の形成による緩衝液の粘度を増加させることにより、沈降を防止するか、または遅くする。
●10mMのリン酸緩衝液+NaCl、pH6.2+3mg/mLのリドカイン。
発泡および沈降の低下
すぐに使用可能な製品における発泡は、非常に問題であり得る。コアSCULPTRA組成物は、PLLA、マンニトール、およびCMCを含み、試料は、発泡能力がある。
Claims (42)
- (a)乳酸ポリマー、グリコール酸ポリマー、および乳酸-グリコール酸コポリマーからなる群から選択される非動物起源の少なくとも1つのポリマーのマイクロスフィアまたは微粒子と、
(b)水およびセルロース誘導体ゲル化剤を含む、ヒドロゲルと、
(c)0.05重量%~1重量%の量のポリソルベート80と
を含む、組成物。 - 前記少なくとも1つのポリマーが、ポリ-L-乳酸、ポリ-D-乳酸、およびそれらの混合物から選択される乳酸である、請求項1に記載の組成物。
- 前記少なくとも1つのポリマーがポリ-L-乳酸である、請求項2に記載の組成物。
- 前記少なくとも1つのポリマーが5mg/mL~50mg/mLの量で存在する、請求項1に記載の組成物。
- 前記セルロース誘導体ゲル化剤が、カルボキシメチルセルロースまたはヒドロキシプロピルメチルセルロースである、請求項1に記載の組成物。
- 前記セルロース誘導体ゲル化剤がカルボキシメチルセルロースである、請求項5に記載の組成物。
- 前記カルボキシメチルセルロースがカルボキシメチルセルロースナトリウムである、請求項6に記載の組成物。
- セルロース誘導体ゲル化剤が0.5重量%~4重量%の量で存在する、請求項6に記載の組成物。
- 前記セルロース誘導体ゲル化剤が2重量%の量で存在する、請求項8に記載の組成物。
- 前記ポリソルベート80が0.05重量%の量で存在する、請求項1に記載の組成物。
- 100mPas未満の粘度を示す、請求項1に記載の組成物。
- 60mPas未満の粘度を示す、請求項11に記載の組成物。
- 5~45mPasの粘度を示す、請求項1に記載の組成物。
- 前記セルロース誘導体ゲル化剤と前記ポリソルベート80の比率が100:1~1:1である、請求項1に記載の組成物。
- 前記セルロース誘導体ゲル化剤と前記ポリソルベート80の比率が50:1~10:1である、請求項14に記載の組成物。
- 前記マイクロスフィアまたは微粒子が生体吸収性である、請求項1に記載の組成物。
- 前記マイクロスフィアまたは微粒子が約1年~約3年の期間内において生体吸収性である、請求項16に記載の組成物。
- 5~20mg/mLの濃度でマイクロスフィアまたは微粒子を含む、請求項1に記載の組成物。
- 17~18mg/mLの濃度でマイクロスフィアまたは微粒子を含む、請求項18に記載の組成物。
- 前記マイクロスフィアまたは微粒子が約20~100μmのサイズである、請求項1に記載の組成物。
- 前記マイクロスフィアまたは微粒子が約40μmのサイズの中央粒径を示す、請求項20に記載の組成物。
- 前記マイクロスフィアまたは微粒子が50~500kDaの分子量を示す、請求項1に記載の組成物。
- 前記マイクロスフィアまたは微粒子が50~200kDaの分子量を示す、請求項22に記載の組成物。
- 局所麻酔剤をさらに含む、請求項1~23のいずれか一項に記載の組成物。
- 前記局所麻酔剤がアミド型またはエステル型局所麻酔剤である、請求項24に記載の組成物。
- 前記局所麻酔剤が、ブピバカイン、ブタニリカイン、カルチカイン、シンコカイン(ジブカイン)、クリブカイン、パラピペリジノアセチルアミノ安息香酸エチル、エチドカイン、リグノカイン(リドカイン)、メピバカイン、オキセサゼイン、プリロカイン、ロピバカイン、トリカイン、トリメカイン、バドカイン、アルチカイン、レボブピバカイン、アミロカイン、コカイン、プロパノカイン、クロルメカイン、シクロメチカイン、プロキシメタカイン、アメトカイン(テトラカイン)、ベンゾカイン、ブタカイン、ブトキシカイン、アミノ安息香酸ブチル、クロロプロカイン、ジメトカイン(ラロカイン)、オキシブプロカイン、ピペロカイン、パレトキシカイン、プロカイン(ノボカイン)、プロポキシカイン、およびトリカイン、またはそれらの組み合わせからなる群から選択される、請求項24または25に記載の組成物。
- 無菌である、請求項1~26のいずれか一項に記載の組成物。
- 無菌状態が照射または加熱滅菌によって達成される、請求項27に記載の組成物。
- 塩化ナトリウム、リン酸緩衝液、および薬学的に許容される担体をさらに含む、請求項1~28のいずれか一項に記載の組成物。
- 0.9%w/vの塩化ナトリウム濃度を示す、請求項1~29のいずれか一項に記載の組成物。
- 注射可能である、請求項1~30のいずれか一項に記載の組成物。
- 注射可能組成物が注射可能インプラントである、請求項31に記載の組成物。
- 請求項1~32のいずれか一項に記載の組成物を含む、予め充填されたシリンジまたはバイアル。
- 請求項1~32のいずれか一項に記載の組成物を含む、注射可能インプラント。
- それを必要とする対象の体への皮内または皮下注射用である、請求項34に記載の注射可能インプラント。
- 修復または美容皮膚科処置を行う方法であって、対象に、請求項1~32のいずれか一項に記載の組成物を注射することを含む、前記方法。
- 前記注射が、皮内、真皮下、皮下、筋肉内、筋肉下、または歯肉内のものである、請求項36に記載の方法。
- 前記注射が口腔の1つ以上の組織内のものである、請求項36に記載の方法。
- 前記注射が、皮膚の充填、体の輪郭形成、顔の輪郭形成、および歯肉の充填のためのものである、請求項36~38のいずれか一項に記載の方法。
- 皮膚の充填が、しわの充填、細線の充填、皮膚のひび割れの充填、傷跡の充填、およびそれらの組み合わせから選択される、請求項39に記載の方法。
- 歯肉の充填が、歯の基部間のギャップを充填することを含む、請求項39に記載の方法。
- 顔および体の輪郭形成が、構造的特徴である突出(pronouncement)を作製すること、凹状変形の矯正、加齢に関連する顔の溝の矯正、ならびに、加齢に起因する、傷害に起因する、および前記顔または体の後天的または先天的変形に起因する前記顔および体の硬組織または軟組織の輪郭欠損を増補または修復することから選択される、請求項39に記載の方法。
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PCT/IB2020/060066 WO2021084421A1 (en) | 2019-10-28 | 2020-10-28 | Ready-to-use esthetic compositions |
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CN116173251B (zh) * | 2022-12-09 | 2023-12-01 | 上海蓝晶生物科技有限公司 | 一种pha微球注射剂的灭菌方法 |
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FR2764514B1 (fr) | 1997-06-13 | 1999-09-03 | Biopharmex Holding Sa | Implant injectable en sous-cutane ou intradermique a bioresorbabilite controlee pour la chirurgie reparatrice ou plastique et la dermatologie esthetique |
WO2003007782A2 (en) | 2001-06-29 | 2003-01-30 | Medgraft Microtech, Inc. | Biodegradable injectable implants and related methods of manufacture and use |
PT102888B (pt) * | 2002-12-23 | 2005-04-29 | Filipe Manuel Rodrigues Aguiar | Processo industrial de producao de acido polilactico (pla) obtido por esterificacao e polimerizacao de acido lactico purificado, sendo o referido acido produzido atraves de um processo fermentativo |
US20160106717A1 (en) * | 2004-09-24 | 2016-04-21 | Gen Pharma Holdings LLC | Cai-based systems and methods for the localized treatment of uveitis |
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WO2007040557A1 (en) * | 2005-09-21 | 2007-04-12 | Surmodics, Inc. | Coatings and articles including natural biodegradable polysaccharides |
US10105197B1 (en) | 2009-03-26 | 2018-10-23 | Fernando Colon | Method of treatment for periodontal pockets |
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US20220133951A1 (en) | 2022-05-05 |
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