JP6245613B2 - 高濃度の一酸化窒素の投与法 - Google Patents
高濃度の一酸化窒素の投与法 Download PDFInfo
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Description
「肺胞濃度」は、肺胞又は肺における一酸化窒素の濃度を意味する。
一酸化窒素のパルス容積の多用量、単盲検、プラシーボ対照、容認試験を健常被検体を用いて実施した。試験の目的は、100, 400, 及び800 ppmのシリンダー濃度と投与速度17から116μgNO/秒での4から60mL/呼吸の範囲のガス用量のパルスシステムを介して送達される吸入一酸化窒素の安全用量限界を決定することであった。試験のもう一つの目的は、副作用(AE)、バイタルサイン及び検査値変数を含む安全性プロフィールを決定することであった。
方法論:
無作為、単盲検様式で、各コホート(5のNO、1のプラシーボ)に6人の被検体が割り当てられた。全ての被検体が、72時間の連続的吸入を受けた。表1に示すようなマトリクスデザインにおいて、100, 400, 又は 800 ppmの送達濃度での125 から 1500 nmol/呼吸の範囲のNO用量と諸種の容積(4から60 mL/呼吸)を用いて、計22のコホートを評価した。バイタルサインと安全検査値(safety laboratory)を評価した。静脈血におけるメトヘモグロビン(MetHb)の測定のための血液試料を72時間の間の選択された時点で集めた。
a解析の目的で、全てのコホートからのプラシーボ処置被検体を単一の用量レベル(15番目)且つ1用量解析群に結合させた。
b低用量システムは、2L/分の流速でパルスあたり3mLから10mLの範囲の容積を送達した。高用量システムは、10L/分の流速で15mLから60mLの範囲の容積を送達した。
cコホート21の一人の被検体は、供給制限のためにプラシーボを受けなかった。
総計132人の被検体が登録され、131人が処置(110人:NO、21人:プラシーボ)を受け、129人が72時間の処置期間を完了した。
主要な安全性評価は、(1)点数化システム(0から3)を介した局所鼻認容性評価;及び(2)NOのパルス用量の濃度及び容積の変化に続く(7%の基準と比較した)MetHbの形成、を含んでいた。安全性評価は、ベースライン及び試験期間での、副作用(AE)、病歴、身体検査、バイタルサイン、心電図(ECG)及び検査値評価(laboratory assessments)を含んでいた。
登録されいずれかの量の試験薬を処置された全ての被検体として定義された「安全性」集団について全ての評価を実施した。記述統計学は、平均、標準偏差(SD)、範囲、中間値、CV%、幾何平均及び幾何CV%を含んでいた。
AEの全発生率は、用量のみに関連していた。下記の表2は、最も頻繁に発生するAEが頭痛、背痛及び吐き気を含むことを示している。
高用量NO群の一人の被検体(6.7%)は、胸部不快感、O2飽和度の低下及び呼吸困難のために中止した。
個々のNO用量群、担体気流のパルス容積、及びNOのシリンダー濃度による72時間での鼻の認容性に対する解析は、鼻の認容性は、パルス容積又はシリンダー濃度のいずれにも関連がなかったため、治験で使用された用量レベルとNOの流速に関連していたことを実証している。認容性スコアを反応変数として用い、用量レベル、シリンダー濃度とパルス容積を共変数として用いた多変量解析は、NO用量レベルが唯一の有意な共変数(p =0.006)であったことを実証した。シリンダー濃度(p =0.525)とパルス容積(p = 0.077)は有意でなかったが、認容性はNO投与速度に影響を受けた。
166 μg/秒までの投与速度での鼻の認容性は、プラシーボと異ならなかった。166 μg/秒の投与速度は、鼻の潰瘍化の場合を含む鼻の炎症の高い発生頻度と関連していた。したがって、NOのパルス投与の72時間後の鼻の認容性は、NO用量及び投与速度に関連するが、担体気流のパルス容積又はNOのシリンダー濃度のいずれにも関連していない。表3、4、5及び6は、それぞれ、用量レベル、シリンダー濃度、パルス容積及び投与速度に基づく局所容認性解析を示す。
1認容性スコアを反応変数として、用量、シリンダー濃度及びパルス容積を共変数として用いた多変量解析から得られた。
1認容性スコアを反応変数として、用量、シリンダー濃度及びパルス容積を共変数として用いた多変量解析から得られた。
1認容性スコアを反応変数として、用量、シリンダー濃度及びパルス容積を共変数として用いた多変量解析から得られた。
この予測的実施例において、患者は、2,000 ppmより高い送達濃度を含むNO用量を投与される。一部の患者は、約2,440 ppm一酸化窒素等の、2,200から2,600 ppmの範囲のNOの用量を投与される。他の患者は、約4,880 ppm一酸化窒素等の、4,400から5,000 ppmの範囲のNOの用量を投与される。他の患者は、約20,000 ppmまでの一酸化窒素を含む、5,000 ppmを超える用量を投与されてもよい。
Claims (11)
- 患者に一酸化窒素(NO)を含む治療用ガスの複数のパルスを送達することにより、肺高血圧症を有する患者を治療するための一酸化窒素(NO)を含む治療用ガスを含む薬剤であって、少なくとも一つのパルスは、
i.2,200から5,000ppmNOの間のNO送達濃度を含み、
ii.17から83μgNO/秒の間の用量速度で投与される、
薬剤。 - 送達濃度が2,200ppmNOから2,600ppmNOの範囲にある、請求項1に記載の薬剤。
- 治療用ガスが呼吸毎に患者に投与される、請求項1又は2に記載の薬剤。
- 治療用ガスが間欠的に患者に投与される、請求項1又は2に記載の薬剤。
- 複数のパルスが0.001から4.5mgNO/kg/時間の範囲の用量で患者に送達される、請求項1から4のいずれか一項に記載の薬剤。
- 複数のパルスが0.001から0.5mgNO/kg/時間の範囲の用量で患者に送達される、請求項1から4のいずれか一項に記載の薬剤。
- 複数のパルスが少なくとも48時間の処置期間に送達される、請求項1から6のいずれか一項に記載の薬剤。
- 複数のパルスが少なくとも72時間の処置期間に送達される、請求項1から6のいずれか一項に記載の薬剤。
- 治療用ガスが未希釈の形態であり、それにより送達濃度が貯蔵濃度と同一である、請求項1から8のいずれか一項に記載の薬剤。
- 肺高血圧症が肺動脈高血圧症(PAH)である、請求項1に記載の薬剤。
- 肺高血圧症が慢性閉塞性肺疾患(COPD)に関連している、請求項1に記載の薬剤。
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Application Number | Priority Date | Filing Date | Title |
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US13/420,852 | 2012-03-15 | ||
US13/420,852 US20130239962A1 (en) | 2012-03-15 | 2012-03-15 | Methods Of Administering High Concentrations Of Nitric Oxide |
US13/827,240 US10556086B2 (en) | 2012-03-15 | 2013-03-14 | Methods of administering high concentrations of nitric oxide |
US13/827,240 | 2013-03-14 | ||
PCT/US2013/031665 WO2013138654A1 (en) | 2012-03-15 | 2013-03-14 | Methods of administering high concentrations of nitric oxide |
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US (3) | US10556086B2 (ja) |
JP (3) | JP6245613B2 (ja) |
CN (1) | CN104411317A (ja) |
AU (4) | AU2013231976B9 (ja) |
BR (1) | BR112014022627A8 (ja) |
CA (1) | CA2867022C (ja) |
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JP2018070616A (ja) * | 2012-03-15 | 2018-05-10 | マリンクロット ホスピタル プロダクツ アイピー リミテッド | 高濃度の一酸化窒素の投与法 |
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JP2015517983A (ja) | 2015-06-25 |
AU2013231976B2 (en) | 2017-12-07 |
CA2867022A1 (en) | 2013-09-19 |
AU2022241504A1 (en) | 2022-10-27 |
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AU2013231976A2 (en) | 2014-10-23 |
MX2019004034A (es) | 2019-07-04 |
AU2020202487A1 (en) | 2020-05-21 |
AU2020202487B2 (en) | 2022-06-30 |
MX368858B (es) | 2019-10-18 |
MX2022008236A (es) | 2022-07-19 |
JP2019089775A (ja) | 2019-06-13 |
MX2014011010A (es) | 2014-10-13 |
AU2017265011A1 (en) | 2018-01-04 |
CA2867022C (en) | 2020-12-15 |
AU2013231976B9 (en) | 2017-12-14 |
WO2013138654A1 (en) | 2013-09-19 |
CN104411317A (zh) | 2015-03-11 |
JP6807409B2 (ja) | 2021-01-06 |
AU2013231976A1 (en) | 2014-10-09 |
US10556086B2 (en) | 2020-02-11 |
BR112014022627A8 (pt) | 2021-10-19 |
JP2018070616A (ja) | 2018-05-10 |
BR112014022627A2 (ja) | 2017-06-20 |
AU2017265011B2 (en) | 2020-01-23 |
JP6466543B2 (ja) | 2019-02-06 |
US11660416B2 (en) | 2023-05-30 |
US20130239963A1 (en) | 2013-09-19 |
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