JP5690826B2 - 多層状勾配膣リング - Google Patents
多層状勾配膣リング Download PDFInfo
- Publication number
- JP5690826B2 JP5690826B2 JP2012521631A JP2012521631A JP5690826B2 JP 5690826 B2 JP5690826 B2 JP 5690826B2 JP 2012521631 A JP2012521631 A JP 2012521631A JP 2012521631 A JP2012521631 A JP 2012521631A JP 5690826 B2 JP5690826 B2 JP 5690826B2
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- JP
- Japan
- Prior art keywords
- regions
- vaginal ring
- pharmaceutically active
- region
- active ingredient
- 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.)
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0034—Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
- A61K9/0036—Devices retained in the vagina or cervix for a prolonged period, e.g. intravaginal rings, medicated tampons, medicated diaphragms
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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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/565—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/18—Feminine contraceptives
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
Description
本出願は、その開示が引用により本明細書の一部をなすものとする、2009年7月21日に出願された米国仮特許出願第61/271,391号明細書の出願日の利益を主張するものである。
1.過酸化物硬化触媒、例えば過酸化ベンゾイルもしくはジ−p−クロロベンゾイルペルオキシドを用いて約200℃の温度で加硫処理しなければならず、熱後処理、例えば米国特許第2,541,137号明細書、同第2,723,966号明細書、同第2,863,846号明細書、同第2,890,188号明細書および同第3,022,951号明細書に記載されている熱後処理を必要とするオルガノポリシロキサン類。
2.硬化触媒の存在下および大気湿度下で架橋剤の添加後に室温でエラストマーへ硬化するRTV(室温加硫処理)タイプの水酸基末端オルガノポリシロキサン類。典型的な硬化触媒は、カルボン酸の金属塩類、好ましくはスズ塩類、例えばスズ(II)オクトエートおよび−スズ(II)−2−エチルヘキサノエートである。
3.任意の別の添加物を使用せずに大気湿度下の室温で硬化させられる一成分シリコーンゴム組成物。これらの単一成分組成物は、2つの末端に位置する加水分解性アシルオキシ基、例えばアセトキシを備えるオルガノポリシロキサン類を主として含有する。該アシルオキシ基は、大気湿度下で加水分解され、該ポリマーを硬化エラストマーに架橋させる三官能シロキサン単位を形成する。そのようなオルガノポリシロキサン類は、例えば米国特許第2,927,907号明細書および同第3,035,016号明細書ならびに英国特許第798,669号明細書および同第804,199号明細書に記載されている。
4.室温または高温で白金触媒され、追加の架橋結合が可能な二成分ジメチルポリシロキサン組成物。薬物含有および/または薬物非含有層は、上記のクラス1〜4から選択されるエラストマーから構築することができる
本膣リングを製造するために、適切なシリコーンエラストマーのパートAおよびパートBは、完全にフラットになるまでロールミル上で結合される。薬物負荷は、次に乳化賦形剤と個別に混合される。次に、乳化薬物負荷は所定の厚さのシリコーンシート上に塗り広げられ、薄くなるまでロールミル内に配置される。上記の方法は、リングを含む他の層についても繰り返す。この際に、必要に応じて異なるシリコーンおよび/または医薬活性成分を使用できる。
共押し出しを用いると、マニホールド装置によって両方の素子を一緒にすることによって、同時押し出しが行われる。その際に、多層状構造を一工程で組立てることができる。そのようなデバイスの例は、米国特許第4,756,682号明細書に記載されている。
この実施例のために、シリコーンエラストマーおよび薬物から作製された膣リングは単押し出しによって調製した。19−ノルプロゲスチン/エストラジオールリングについては、内層内に7.9重量%の19−ノルゲスチンが存在し、中間層内に2.5重量%のエストラジオールが存在した。外層は薬物を含有していなかった。プロゲステロンリングについては、薬物は内層および中間層の両方に存在したが、外層は薬物を含有していなかった。内層は25重量%のプロゲステロンを含有し、中間層は12重量%のプロゲステロンを含有していた。全層内で使用されたポリマーは、シリコーンエラストマーであった。
Claims (18)
- 少なくとも内側領域と外面を有する少なくとも1つの外側領域とを包含する複数の領域を含む膣リングであって、前記複数の領域の各々はシリコーンエラストマーを含み、前記複数の領域の内の少なくとも1つは医薬活性成分を含み、前記少なくとも1つの内側領域と少なくとも1つの外側領域は異なる組成を有し、前記複数の領域は前記少なくとも1つの内側領域から前記少なくとも1つの外側領域の前記外面への前記医薬活性成分の妨害されない拡散を提供する連続シリコーン体を含む膣リング。
- 前記複数の領域は、前記少なくとも1つの内側領域および前記少なくとも1つの外側領域の間に中間領域を包含する少なくとも3つの領域を含む、請求項1に記載の膣リング。
- 前記医薬活性成分は、前記複数の領域の内の前記少なくとも1つの領域の全体に均一に分散している、請求項1に記載の膣リング。
- 前記少なくとも3つの領域の内の少なくとも2つの領域は、前記少なくとも3つの領域の内の少なくとも2つの領域の全体に均一に分散した医薬活性成分を含む、請求項2に記載の膣リング。
- 前記少なくとも3つの領域の各々は、前記少なくとも3つの領域の各々の全体に均一に分散した医薬活性成分を含む、請求項4に記載の膣リング。
- 前記外側領域は、医薬活性成分を含有していない、請求項1に記載の膣リング。
- 前記少なくとも3つの領域の各々は、異なる医薬活性成分または医薬活性成分の組み合わせを含有する、請求項5に記載の膣リング。
- 前記少なくとも3つの領域の各々は、同一の医薬活性成分を含む、請求項5に記載の膣リング。
- 前記少なくとも3つの領域の内の1つの領域はエストロゲン単独を含み、前記少なくとも3つの領域の内のもう1つの領域はプロゲスチン単独を含み、および前記少なくとも3つの領域のもう1つの領域はエストロゲンおよびプロゲスチンの両方を含む、請求項7に記載の膣リング。
- 前記複数の領域の内の前記少なくとも1つの領域は、殺菌剤単独またはプロゲスチンと組み合わせた殺菌剤を含む、請求項1に記載の膣リング。
- 前記複数の領域の内の前記少なくとも1つの領域は、PRM単独、SERM単独、またはPRMおよびSERMの組み合わせを含む、請求項1に記載の膣リング。
- 前記膣リングは、減少したバースト作用を有する、請求項1に記載の膣リング。
- 内側領域と外面を有する外側領域とを包含する複数の領域を含む膣リングを製造する方法であって、前記複数の領域の各々がシリコーンエラストマーを含み、前記複数の領域の内の少なくとも1つの領域は医薬活性成分を含み、前記方法は、前記複数の領域の各々を前記膣リングの形状に押し出す工程と、および前記少なくとも1つの内側領域から前記少なくとも1つの外側領域の前記外面への前記医薬活性成分の妨害されない拡散を提供する連続シリコーン体を提供できるように前記複数の領域の各々を同時に硬化する工程とを含む方法。
- 前記内側領域と前記外側領域は、異なる組成からなる、請求項13に記載の方法。
- 前記複数の領域は、前記内側領域および前記外側領域の間に中間領域を包含する少なくとも3つの領域を含む、請求項13に記載の方法。
- 前記押し出しする工程は、前記複数の領域を前記膣リングの形状に同時に押し出しする工程を含む、請求項13に記載の方法。
- 前記押し出しする工程は、前記複数の領域の各々を前記膣リングの形状に別個に押し出しする工程を含む、請求項13に記載の方法。
- 哺乳動物の膣腔内に挿入するための請求項1に記載の膣リングであって、前記膣リングは前記医薬活性成分を前記哺乳動物に送達するために十分な時間に渡って保持される、膣リング。
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US8580294B2 (en) | 2010-10-19 | 2013-11-12 | International Partnership For Microbicides | Platinum-catalyzed intravaginal rings |
DE202011110355U1 (de) * | 2011-03-09 | 2014-01-15 | Arstat, Inc. | Behandlung von Uterusmyomen durch intravaginale Verabreichung einer niedrigen Dosis eines selektiven Progesteronrezeptormodulators, eines Antigestagens oder eines Antigestagen-Wirkstoffes |
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BR112012001353A2 (pt) | 2016-04-05 |
AU2010274946A1 (en) | 2012-03-01 |
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CN102497855B (zh) | 2013-12-25 |
HK1169614A1 (en) | 2013-02-01 |
CA2767967A1 (en) | 2011-01-27 |
CA2767967C (en) | 2014-10-21 |
DK2456421T3 (en) | 2017-06-06 |
JP2012533401A (ja) | 2012-12-27 |
ZA201200809B (en) | 2012-10-31 |
ES2626156T3 (es) | 2017-07-24 |
WO2011011099A1 (en) | 2011-01-27 |
CN102497855A (zh) | 2012-06-13 |
EP2456421A1 (en) | 2012-05-30 |
US8753667B2 (en) | 2014-06-17 |
BR112012001353B1 (pt) | 2020-04-14 |
EP2456421B1 (en) | 2017-04-05 |
IN2012DN00711A (ja) | 2015-06-19 |
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