Assessment of Lung Function (Lufu) at Sea Level LA vs. High Altitude HA in Patients With Pulmonary Arterial Hypertension PAH
2026年8月31日 更新者:Silvia Ulrich Somaini
Effect of a One-week Descent From 2850m to Sea Level and Re-ascent in Patients With Pulmonary Arterial Hypertension and Healthy Controls Permanently Living > 2600m on Pulmonary Hemodynamics, Exercise Capacity, Blood Oxygenation, Sleep Disordered Breathing and Further Outcomes
To study the effect of a re-ascent to high altitude (Quito Ecuador: 2850m) after a one-week stay at sea level (after prior descent from 2850m) on lung function and pulmonary resistance/reactance in patients with pulmonary arterial disease PAH, who live permanently > 2600m.
調査の概要
状態
状態
まだ募集していません
条件
条件
介入・治療
介入・治療
詳細な説明
The aim of this research is to investigate the lung function and pulmonary resistance/reactance before and after re-ascent (sea level for 7 days after prior descent from 2850m vs. re-ascent to 2850m) in patients with diagnosed pulmonary hypertension according to guidelines, who permanently live at high altitude over 2600m.
研究の種類
研究の種類
介入
入学 (推定)
入学
20
段階
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究連絡先
研究連絡先
- 名前:Silvia Ulrich, Prof. Dr. med.
- 電話番号:+41442552220
- メール:silvia.ulrich@usz.ch
研究連絡先のバックアップ
- 名前:Michael Furian, Prof. Dr. sc. ETH
- 電話番号:+41442552220
研究場所
-
-
-
Zurich、スイス、8091
- University Hospital of Zurich
-
-
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
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
説明
Inclusion Criteria:
- Adult patients aged 18-80 years and of all genders
- Permanent residence > 2600 m
- Diagnosis of pulmonary arterial hypertension PAH (PAHHA-Group) according to guidelines
- Patients are stable on therapy
- NYHA (new york heart association) functional class I-III.
- written informed consent to participate in the study.
Exclusion Criteria:
- Age <18 years or >80 years
- unstable condition
- Patients who cannot follow the study investigations
- Patient permanently living < 2600m.
- Patients who traveled and stayed overnight at altitudes <2000 m in the past 4 weeks.
- Patients with moderate to severe concomitant lung disease (FEV1<70% or forced vital capacity <70%), severe parenchymal lung disease, severe smokers (>20 cigarettes/day)
- Severely hypoxemic patients at Quito permanently having persistent SpO2 (oxygen saturation by pulseoximetry) <80% on ambient air.
- Patient with a non-corrected ventricular septum defect
- Relevant concomitant other disease of the heart, kidney, liver, blood (anemia hemoglobin<11 g/dl)
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:支持療法
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
アーム数
1
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Lung function at sea level and at 2850m
Assessment of lung function and pulmonary resistance/reactance on day four at sea level (after prior descent from 2850m) and after re-ascent (after totally one week at sea level) back to 2850m by bus (in one day)
|
Descent from 2850m to sea level with a stay for 7 days and re-ascent/return back to their usual living altitude at 2850m
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
FEV1 after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in forced expiratory volume in one second FEV1 between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Forced Vital Capacity FVC after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in forced vital capacity FVC between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
|
FEV1/FVC after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in FEV1/FVC between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
|
Respiratory Impedance (forced oscillation technique) after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in respiratory impedance (forced oscillation technique) between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
|
Respiratory resistance (forced oscillation technique) after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in respiratory resistance (forced oscillation technique) between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
|
Respiratory reactance (forced oscillation technique) after re-ascent to 2850m
時間枠:From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
Difference/change in respiratory reactance (forced oscillation technique) between sea level (measurement on the 4th day) and day after re-ascent to 2850m in patients with pulmonary arterial hypertension
|
From Day 4 at sea level to the day after re-ascent (Day 9: approximately 6 days)
|
|
FEV1 after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in FEV1 between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
Forced Vital Capacity FVC after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in forced vital capacity FVC between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
FEV1/FVC after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in FEV1/FVC between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
Respiratory Impedance (forced oscillation technique) after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in respiratory impedance (forced oscillation technique) between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
Respiratory resistance (forced oscillation technique) after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in respiratory resistance (forced oscillation technique) between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
Respiratory reactance (forced oscillation technique) after 4 days at sea level
時間枠:From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
Difference/change in respiratory reactance (forced oscillation technique) between 2850m (prior to descent) and day 4 at sea level in patients with pulmonary arterial disease
|
From high altitude (Day 0, 2850m) to day 4 at sea level (approximately 5 days)
|
|
FEV1 pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in FEV1 at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial disease
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
|
Forced Vital Capacity FVC pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in forced vital capacity FVC at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial hypertension
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
|
FEV1/FVC pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in FEV1/FVC at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial hypertension
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
|
Respiratory Impedance (forced oscillation technique) pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in respiratory impedance (forced oscillation technique) at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial hypertension
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
|
Respiratory resistance (forced oscillation technique) pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in respiratory resistance (forced oscillation technique) at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial hypertension
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
|
Respiratory reactance (forced oscillation technique) pre-descent and after re-ascent (2850m)
時間枠:Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
Difference/change in respiratory reactance (forced oscillation technique) at 2850m with a one-week stay at sea level in between (day pre-descent vs. day after re-ascent) in patients with pulmonary arterial hypertension
|
Baseline at 2850m followed by a one-week stay at sea level to the day after re-ascent back to 2850m (time frame approximately 11 days)
|
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。
捜査官
捜査官
- 主任研究者:Silvia Ulrich、University Hospital Zurich, Departement of Pulmonology
- 主任研究者:Rodrigo Hoyos、Hospital Carlos Andrade Marin of Quito, Ecuador
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 (推定)
研究開始
2026年9月25日
一次修了 (推定)
一次修了
2026年10月4日
研究の完了 (推定)
研究の完了
2026年12月31日
試験登録日
最初に提出
最初に提出
2026年8月17日
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
2026年8月31日
最初の投稿 (実際)
最初の投稿
2026年9月4日
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
2026年9月4日
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
2026年8月31日
最終確認日
最終確認日
2026年8月1日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- Ec_LAvsHA_Lufu_PAH
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
はい
IPD プランの説明
Data will be provided upon request and based on a clear intention reviewed by an ethical review board.
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米国FDA規制医薬品の研究
いいえ
米国FDA規制機器製品の研究
いいえ
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。