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Inhaled Aerosolized Prostacyclin for Pulmonary Hypertension Requiring Inhaled Nitric Oxide

2014年8月25日 更新者:Duke University
Acute secondary pulmonary hypertension (PH) often leads to dysfunction of the right ventricle (RV) and can be a significant cause of patient morbidity and mortality. Selective pulmonary vasodilation with inhaled nitric oxide (INO) has become the treatment of choice for this condition. The evidence supporting INO safety and efficacy under these circumstances is sparse, however, and is largely extrapolated from the use of INO in neonatal pulmonary hypertension. Moreover, the high cost and potential toxicity of INO makes the therapy far from ideal. Emerging evidence suggests that inhaled aerosolized prostacyclins such as iloprost may be a favorable alternative therapy.

調査の概要

状態

終了しました

介入・治療

詳細な説明

Phase 1- In the original study, 3 doses of Iloprost were given. This was revised after 5 subjects were enrolled in order to study the effects of continuous delivery over a longer period of time.

Phase 2 - All remaining subjects received Iloprost as a continuous treatment.

The study was designed for an enrollment of 200 subjects and was ended early.

研究の種類

介入

入学 (実際)

27

段階

  • フェーズ 4

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  1. Clinical evidence of pulmonary hypertension (PH) requiring INO therapy as prescribed by the attending physician.
  2. Indwelling arterial catheter.
  3. Signed informed consent

Exclusion Criteria:

  1. Clinically unstable circulatory condition requiring epinephrine > 0.1 mcg/kg/min or levophed, or already meeting treatment failure criteria (see section 5.3 below)
  2. Known hypersensitivity to prostacyclin compounds
  3. Patients receiving sildenafil or bosentan
  4. Refusal by the attending physician

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:非ランダム化
  • 介入モデル:クロスオーバー割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Phase 2: Inhaled Iloprost continuous

Each subject will have a stable dose of INO therapy as established by the attending physicians for at least one hour. Initial baseline data collection will then be made.

A 20 mcg dose of Iloprost will be given initially. During this treatment there will be a nitric oxide titration to 0. Iloprost will be aerosolized continuously at a dose of 5-30mcg/hour for as long as the attending physician deems it necessary to deliver vasodilator therapy.

A 20 mcg dose of Iloprost will be given initially.
他の名前:
  • ベンタビス
実験的:Phase 1: Inhaled Iloprost 3 doses

Each subject will have a stable dose of INO therapy as established by the attending physicians for at least one hour. Initial baseline data collection will then be made.

A 20 mcg dose of Iloprost will be given initially. During this treatment there will be a nitric oxide titration to 0. Iloprost will be aerosolized three different times on hour apart. Thirty minutes after the last iloprost dose, INO will be added back at the previous (baseline) dose.

A 20 mcg dose of Iloprost will be given initially.
他の名前:
  • ベンタビス

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Percent Change in Oxygen Saturation (SpO2) From Baseline
時間枠:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Readings were taken from the medical record and the data may not have been present at the exact time frames.
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Percent Change in Oxygen Saturation (SpO2) From Baseline
時間枠:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Change in Mean Heart Rate From Baseline
時間枠:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Heart Rate From Baseline
時間枠:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Number of Treatment Failures
時間枠:as long as subject was on drug up to approximately 24 hours

Treatment failure is defined as Central venous pressure (CVP) ≥ 20 mm Hg and any one of the following:

  1. Cardiac Index (CI) >/= 1.8 L/min/m2
  2. Administration of >/=0.1 ug/kg/min Epinephrine or Norepinephrine
  3. MAP </= 50 mmHg (or as appropriate for age in pediatrics).
  4. SvO2</= 55% (or < 45% for patients with R to L intracardiac shunting and, thus, cyanosis at baseline.}
as long as subject was on drug up to approximately 24 hours
Change in Mean Pulmonary Artery Pressure (mPAP) From Baseline
時間枠:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Pulmonary Artery Pressure (mPAP) From Baseline
時間枠:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Cardiac Output (CO) From Baseline
時間枠:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Cardiac Output (CO) From Baseline
時間枠:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Change in Mean Venous Oxygen Saturation (SvO2) From Baseline
時間枠:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
SvO2 represents an average of all the venous oxygen saturations of the various organs and tissues.
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Venous Oxygen Saturation (SvO2) From Baseline
時間枠:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:Neil MacIntyre, MD、Duke University

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始

2006年9月1日

一次修了 (実際)

2009年1月1日

研究の完了 (実際)

2009年1月1日

試験登録日

最初に提出

2014年6月19日

QC基準を満たした最初の提出物

2014年6月19日

最初の投稿 (見積もり)

2014年6月23日

学習記録の更新

投稿された最後の更新 (見積もり)

2014年8月26日

QC基準を満たした最後の更新が送信されました

2014年8月25日

最終確認日

2014年6月1日

詳しくは

本研究に関する用語

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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