Solar Powered Oxygen Delivery
Solar Powered Oxygen Delivery: An Open-label Non-inferiority Comparison to Standard Oxygen Delivery Using Oxygen Cylinders
調査の概要
詳細な説明
Arterial hypoxemia in pneumonia results from several mechanisms: pulmonary arterial blood flow to consolidated lung resulting in an intrapulmonary shunt, intrapulmonary oxygen consumption, and ventilation-perfusion mismatch. Hypoxemia is a risk factor for mortality in pediatric pneumonia, and was associated with a 5-fold increased risk of death in studies from Kenya and Gambia.
In one report from Nepal, the prevalence of hypoxemia (SpO2 < 90%) in 150 children with pneumonia was 39% overall, with increasing rates of hypoxemia across strata of pneumonia severity (100% of very severe, 80% of severe and 17% of pneumonia patients). General features of respiratory distress were associated with hypoxemia in this study, including chest indrawing, lethargy, grunting, nasal flaring, cyanosis, inability to breastfeed or drink.
Few studies have reported on the use of solar powered oxygen (SPO2) delivery. One online report describes the use of a battery-powered oxygenator in the Gambia that could be adapted to use solar power (http://www.dulas.org.uk). Otherwise, our intervention is to our knowledge the first example of SPO2 delivery.
New ways to deliver oxygen for children with pneumonia in Africa could improve outcomes and save numerous lives. If this study documents the non-inferiority of SPO2 relative to standard oxygen delivery, this novel method of providing life-saving oxygen could be rolled out across centres in sub-Saharan Africa where oxygen cylinders are not widely available and electrical power is not reliable. The potential energy efficiency, low cost and ease of use make solar power an attractive avenue of investigation for use in resource-constrained settings. Proof-of-concept that the sun can be used to drive oxygen delivery could stimulate commercial interest in this technology. The SPO2 system could thus achieve rapid penetration into the most remote or rural settings in sub-Saharan Africa.
研究の種類
入学 (実際)
段階
- フェーズ2
連絡先と場所
研究場所
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Jinja、ウガンダ
- Jinja Regional Referral Hospital
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Age <13 years
- IMCI defined pneumonia, severe pneumonia or very severe disease
- Hypoxemia (SpO2<90%) based on non-invasive pulse oximetry
- Hospital admission warranted based on clinician judgment
- Consent to blood sampling and data collection
Exclusion Criteria:
- SpO2 ≥90%
- Suspected pulmonary tuberculosis
- Outpatient management
- Denial of consent to participate in study
研究計画
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：ランダム化
- 介入モデル：並列代入
- 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 |
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実験的：Solar powered oxygen
Solar panels used to drive an oxygen concentrator to deliver at stream of oxygen at approximately 90% FiO2 and a rate of 1-5L/min.
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アクティブコンパレータ：Oxygen from cylinders
Conventional oxygen delivery from compressed gas cylinders
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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 |
|---|---|---|
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Length of hospital stay
時間枠：Until end of hospitalization (usually 3 to 7 days)
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The number of days from admission to discharge.
Criteria for discharge are standardized and are assessed daily.
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Until end of hospitalization (usually 3 to 7 days)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Mortality
時間枠：At hospital discharge (usually 3 to 7 days)
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In-hospital mortality will be quantified.
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At hospital discharge (usually 3 to 7 days)
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Duration of supplemental oxygen therapy
時間枠：Until hospital discharge (usually 3 to 7 days)
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Time to wean patient off oxygen.
This is assessed daily using standard procedures.
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Until hospital discharge (usually 3 to 7 days)
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Proportion of patients successfully oxygenated
時間枠：6 hours
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Success defined as achieving a post-oxygen saturation above 90% within 6 hours.
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6 hours
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Oxygen delivery system failure
時間枠：During hospitalization (usually 3 to 7 days)
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Failure defined as need for backup oxygen to maintain SpO2>90%.
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During hospitalization (usually 3 to 7 days)
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Cost
時間枠：Until hospital discharge (usually 3 to 7 days)
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Cost of oxygen cylinders (control arm) and cost of equipment (capital investment - solar oxygen intervention arm).
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Until hospital discharge (usually 3 to 7 days)
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Lambaréné Organ Dysfunction Score (LODS)
時間枠：Until hospital discharge (usually 3 to 7 days)
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This simple published clinical score predicts mortality in children with malaria, but may also have prognostic value in pneumonia.
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Until hospital discharge (usually 3 to 7 days)
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Michael T Hawkes, MD, PhD、University of Alberta
- 主任研究者：Robert O Opoka, MBChB, MPH、Makerere University
出版物と役立つリンク
一般刊行物
- Duke T, Wandi F, Jonathan M, Matai S, Kaupa M, Saavu M, Subhi R, Peel D. Improved oxygen systems for childhood pneumonia: a multihospital effectiveness study in Papua New Guinea. Lancet. 2008 Oct 11;372(9646):1328-33. doi: 10.1016/S0140-6736(08)61164-2. Epub 2008 Aug 15.
- Hawkes MT, Conroy AL, Namasopo S, Bhargava R, Kain KC, Mian Q, Opoka RO. Solar-Powered Oxygen Delivery in Low-Resource Settings: A Randomized Clinical Noninferiority Trial. JAMA Pediatr. 2018 Jul 1;172(7):694-696. doi: 10.1001/jamapediatrics.2018.0228.
- Nyende S, Conroy A, Opoka RO, Namasopo S, Kain KC, Mpimbaza A, Bhargava R, Hawkes M. Solar-powered oxygen delivery: study protocol for a randomized controlled trial. Trials. 2015 Jul 9;16:297. doi: 10.1186/s13063-015-0814-y.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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。
Solar powered oxygenの臨床試験
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Healthcare Innovation Technology LabNovo Nordisk A/Sわからない
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University Hospital, Basel, Switzerland募集