急性呼吸窮迫症候群(ARDS)を治療するための一酸化炭素吸入の安全性と有効性に関する研究
急性呼吸窮迫症候群(ARDS)の治療のための一酸化炭素吸入の第II相試験
調査の概要
詳細な説明
急性呼吸窮迫症候群 (ARDS) は、軍隊、退役軍人、および民間人に影響を与える壊滅的な疾患です。 ARDS は、重度の急性肺炎症と低酸素性呼吸不全の症候群であり、米国では年間 180,000 症例が発生しています。 救命救急管理と肺保護換気戦略の最近の進歩にもかかわらず、ARDS の罹患率と死亡率は許容できないほど高いままです。 ARDS に対する特定の効果的な治療法がないことは、新しい経路を標的とする新しい治療法が必要であることを示しています。 一酸化炭素 (CO) は、過去 10 年間に ARDS の実験モデルで得られたデータに基づく、ARDS の新しい治療法を表しています。
CO は、急性肺損傷 (ALI) および敗血症の実験モデルにおいて保護的であることが示されています。 さらに、複数のヒト研究により、いくつかの異なる濃度のCOの実験的投与が十分に許容され、制御された研究環境で低用量の吸入COが被験者に安全に投与できることが実証されています. 研究者らは以前、ARDS における低用量 iCO の第 I 相試験を実施しており、低用量 iCO (100 および 200 ppm) の正確な投与が、敗血症誘発性 ARDS 患者において実行可能で、忍容性が高く、安全であることを実証しました。
この研究の目的は、人工呼吸器を装着したARDS患者における低用量吸入一酸化炭素(iCO)療法の安全性と有効性を評価することです。
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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Massachusetts
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Boston、Massachusetts、アメリカ、02115
- Brigham and Women's Hospital
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Boston、Massachusetts、アメリカ、02114
- Massachusetts General Hospital
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Missouri
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St Louis、Missouri、アメリカ、63130
- Washington University
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New York
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Brooklyn、New York、アメリカ、11215
- New York-Presbyterian Brooklyn Methodist Hospital
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New York、New York、アメリカ、10065
- Weill Cornell Medical College
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North Carolina
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Durham、North Carolina、アメリカ、27710
- Duke University Hospital
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Durham、North Carolina、アメリカ、27704
- Duke Regional 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
説明
包含基準:
18歳以上で挿管されたすべてのARDS患者
ARDS は、次の 4 つの基準がすべて満たされた場合に定義されます。
- PaO2/FiO2 比 ≤ 300、少なくとも 5 cm H2O の呼気終末陽圧 (PEEP)
- -既知の臨床的発作または呼吸器症状の新規または悪化から1週間以内の前頭胸部X線写真の両側性混濁(滲出液、葉/肺の虚脱、または結節によって完全には説明されない)
- 気管内または気管チューブによる陽圧換気の必要性
- 心不全または体液過負荷では十分に説明できない呼吸不全;危険因子が存在しない場合、静水圧浮腫を除外するために客観的な評価 (心エコー検査など) が必要です。
- ARDS の発症は、基準 1 ~ 4 の最後が満たされた時点として定義されます。 ARDS は、168 時間の登録期間中持続する必要があります。
除外基準:
以下の基準のいずれかを満たす個人は、この研究への参加から除外されます。
- 18歳未満
- ARDS発症から168時間以上
- 妊娠中または授乳中
- 囚人
- 完全な支援を約束していない患者、代理人、または医師 (例外: 心停止からの蘇生の試みを除いて、すべての支持療法を受ける場合、患者は除外されません)
- 同意がない/同意を得ることができない、または適切な法定代理人がいない
- 試験への登録を医師が拒否した場合
- 瀕死の患者は 24 時間生存が期待できない
- 動脈ラインまたは中心ラインがない/動脈ラインまたは中心ラインを配置する意図がない
- 肺保護換気戦略に従う意図/不本意
- FiO2 ≥ 0.9 で SpO2 < 95 または PaO2 < 90 として定義される重度の低酸素血症
- ヘモグロビン < 7.0 g/dL
- -エホバの証人であるか、入院中に輸血を受けることができない、または受けたくない被験者
- -過去90日以内の急性心筋梗塞(MI)または急性冠症候群(ACS)
- -30日以内の冠動脈バイパス移植(CABG)手術
- 狭心症または日常生活動作に伴う硝酸塩の使用
- NYHAクラスIVに分類される心肺疾患
- 過去 1 か月以内の脳卒中 (虚血性または出血性)、72 時間以内に CPR を必要とする心停止、または心停止後の精神状態を評価できない
- やけど > 40% の総体表面積 (TBSA)
- 重度の気道吸入損傷
- 高周波振動換気の使用
- 体外膜型人工肺(ECMO)の使用
- 吸入肺血管拡張療法の併用(例: 一酸化窒素 [NO] またはプロスタグランジン)
- 血管炎によるびまん性肺胞出血
- 他の治験薬研究への同時参加
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:ダブル
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:一酸化炭素の吸入
200 ppm の一酸化炭素を 3 日間、毎日最大 90 分間吸入。
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3 日間、毎日 90 分間、200 ppm の一酸化炭素を吸入。
他の名前:
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プラセボコンパレーター:医療用空気
医療用空気を毎日最大 90 分間、3 日間吸入します。
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医療用空気を毎日最大 90 分間、3 日間吸入します。
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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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Primary Safety Outcome: Number of Pre-specified Administration-related Adverse Events.
時間枠:7 days
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Safety of inhaled CO, defined by the incidence of pre-specified administration-related AEs (as defined below) and spontaneously reported AEs through study day 7.
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7 days
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Primary Efficacy Outcome: Change in Mitochondrial DNA (mtDNA) Level From Day 1 to Day 5
時間枠:5 days
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Mitochondrial DNA (mtDNA) plasma levels will be measured by quantitative PCR of human NADH dehydrogenase 1.
The number presented is the percentage average difference from beginning to end of treatment.
Limited number of measurements prevents variance analyses; therefore we present the data from the subjects available in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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5 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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Lung Injury Score (LIS) on Days 1-5, and on Days 1-7
時間枠:7 days
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The Lung Injury Score (LIS) is a composite 4-point scoring system including the PaO2/FiO2, PEEP, quasi-static respiratory compliance, and the extent of infiltrates on the chest X-ray.
Each of the four components is categorized from 0 to 4, where a higher number is worse.
The total Lung Injury Score is obtained by dividing the aggregate sum by the number of components used.
Previous randomized clinical trials in ARDS have shown that a decreased LIS correlates with improvement in lung physiology as well as important clinical outcomes including mortality and ventilator-free days (VFDs).
The number presented is the average difference from beginning to end of treatment.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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7 days
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Percent Change in PaO2/FiO2 Ratio on Days 1-5, and on Days 1-7
時間枠:7 days
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PaO2/FiO2 will be measured daily on days 1-5 and days 1-7 in ventilated subjects.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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7 days
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Percent Change in Oxygenation Index (OI) on Days 1-5, and Days 1-7
時間枠:7 days
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The oxygenation index will be measured on days 1-5 and on days 1-7 in ventilated subjects.
Oxygenation index is calculated as (FiO2 X mean airway pressure)/PaO2.
We provide change in Oi from baseline.
Oi is only measured when subjects are ventilated, therefore not all timepoints are available.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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7 days
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Percent Change in Dead Space Fraction (Vd/Vt) on Days 1-3, and Days 1-7
時間枠:7 days
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The dead space fraction will be measured days 1-3 and days 1-7 in ventilated subjects.
We present change in dead space fraction between initial and final measurements that were available (measurements only taken while the subjects were intubated).
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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7 days
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Percent Change in Sequential Organ Failure Assessment (SOFA) Score on Days 1-5, and Days 1-7.
時間枠:1-5 and 1-7 days
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Organ failure will be assessed using the SOFA score.
SOFA scores will be assessed daily on days 1-5 and day 7, as the SOFA score has been shown to be a reliable prognostic indicator of outcomes in critically ill patients.
To calculate the Sequential Organ Failure Assessment (SOFA) score, each of the six components (Respiratory, Coagulation, Liver, Cardiovascular, Central Nervous System, Renal) is categorized from 0-4, where a higher number is worse.
The SOFA score (0-24) will be calculated by summing all six components.
We present changes in SOFA score over the time of hospitalization, over the time of ICU admission (up to days 5 and 7 for the enrolled subjects).
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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1-5 and 1-7 days
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Absolute Value of Biomarkers of Inflammation and Inflammasome Activation
時間枠:4 days
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Cytokine plasma levels (eg.
IL-1B) will be measured by ELISA daily on days 1-3 and on day 4. We report the absolute Mean Fluorescent Intensity (MFI) of each sample at pretreatment time point of day 4. Limited number of measurements prevents variance and measures of dispersion analyses; therefore we present the data from the subjects available in each group and report as "Number" without standard deviation, since measures of dispersion cannot be calculated.
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4 days
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Percent Change in Lipid Mediators
時間枠:4 days
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Lipid mediators (LM) and specialized pro-resolving mediators (SPMs) will be measured in plasma using liquid chromatography-tandem mass spectrometry (LC-MS-MS) based methods daily on days 1-3 and on day 4.
The percentage change from baseline at day 1 to post treatment at day 4 is reported.
A representative LM is shown (14-HDHA (14-hydroxy-4Z,7Z,10Z,12E,16Z,19Z-docosahexaenoic acid) is an oxidized metabolite of omega-3 docosahexaenoic acid (DHA)).
Limited number of measurements prevents variance and measures of dispersion analyses; therefore we present the data from the subjects available in each group and report as "Number" without standard deviation, since measures of dispersion cannot be calculated.
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4 days
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Ventilator-free Days at Day 28
時間枠:28 days
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Ventilator-free days to day 28 are defined as the number of days from the time of initiating unassisted breathing to day 28 after randomization, assuming survival for at least two consecutive calendar days after initiating unassisted breathing and continued unassisted breathing to day 28.
If a subject returns to assisted breathing and subsequently achieves unassisted breathing to day 28, VFDs will be counted from the end of the last period of assisted breathing to day 28.
Participants who do not survive to day 28 are assigned zero ventilator-free days.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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28 days
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ICU-free Days at Day 28
時間枠:28 days
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ICU-free days are the number of days that the patient is alive and free from ICU care within 28 days.
Is calculated by subtracting the total number of days that the patient is free from the ICU from 28. Patients who die within 28 days are automatically assigned "0" ICU free days.
We present data of ICU free days for enrolled subjects.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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28 days
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Hospital-free Days at Day 60
時間枠:60 days
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Hospital-free days will be assessed on day 60.
Hospital-free days are days alive post hospital discharge through day 60.
Patients who die on or prior to day 60 are assigned zero hospital-free days.
We present hospital free days at day 60.
The limited number of measurements prevent the variance and measures of dispersion calculations; therefore we present the average of data from the available subjects in each group and report as "Mean" without standard deviation, where measures of dispersion cannot be calculated.
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60 days
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Hospital Mortality to Day 28 and 60
時間枠:60 days
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Mortality will be assessed on day 28 and day 60
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60 days
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Montreal Cognitive Assessment- MoCA-Blind
時間枠:6 months
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Montreal Cognitive Assessment - Blind Version (MoCA-Blind) The MoCA-Blind is a remote adaptation of the Montreal Cognitive Assessment (MoCA) used as a screening assessment for detecting cognitive impairment.
It is administered via telephone interview.
The MoCA-Blind assesses the following cognitive domains (points): - Attention (0-6) - Language: (0-3 (Repetition (0-2) and fluency (0-1)) - Abstraction (0-2) - Memory: Delayed recall (0-5) - Orientation (0-6) The minimum score is 0 and maximum score is 22 points.
Calculated as the sum of all domains.
Interpretation: Higher scores indicate better cognitive functioning.
Lower scores indicate worse cognitive functioning (greater cognitive impairment).
A score of 18 or above is within the normal range.
Limited number of measurements prevents variance and measures of dispersion analyses; therefore we present the data from the subjects available in each group and report as "Number", since given measures of dispersion cannot be calculated.
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6 months
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Hayling Sentence Completion Test
時間枠:6 months
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The Hayling Sentence Completion Test assesses executive functioning (response initiation and inhibition), administered via telephone.
With 30 sentence-completion items split into 2 sections (15 each).
Sections: - 1: Response initiation (time to provide a contextually appropriate word).
- 2: Response inhibition (time and error score for providing an unrelated word).
Scores (response time and errors) from both sections are combined and converted to an age-adjusted standardized total score.
Total combined standardized score ranges from 1-10: 1: Impaired 2: Abnormal 3: Poor 4: Low Average 5: Moderate Average 6: Average 7: High Average 8: Good 9: Superior 10: Very Superior Higher scores= Better executive functioning Lower scores= Greater impairment.
Limited number of measurements prevents variance and measures of dispersion analyses; therefore we present the data from the subjects available in each group and report as "Number", since given measures of dispersion cannot be calculated.
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6 months
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協力者と研究者
協力者
捜査官
- 主任研究者:Rebecca Baron, MD、Brigham and Women's Hospital
出版物と役立つリンク
一般刊行物
- Nakahira K, Kyung SY, Rogers AJ, Gazourian L, Youn S, Massaro AF, Quintana C, Osorio JC, Wang Z, Zhao Y, Lawler LA, Christie JD, Meyer NJ, Mc Causland FR, Waikar SS, Waxman AB, Chung RT, Bueno R, Rosas IO, Fredenburgh LE, Baron RM, Christiani DC, Hunninghake GM, Choi AM. Circulating mitochondrial DNA in patients in the ICU as a marker of mortality: derivation and validation. PLoS Med. 2013 Dec;10(12):e1001577; discussion e1001577. doi: 10.1371/journal.pmed.1001577. Epub 2013 Dec 31.
- Brealey D, Brand M, Hargreaves I, Heales S, Land J, Smolenski R, Davies NA, Cooper CE, Singer M. Association between mitochondrial dysfunction and severity and outcome of septic shock. Lancet. 2002 Jul 20;360(9328):219-23. doi: 10.1016/S0140-6736(02)09459-X.
- Jung SS, Moon JS, Xu JF, Ifedigbo E, Ryter SW, Choi AM, Nakahira K. Carbon monoxide negatively regulates NLRP3 inflammasome activation in macrophages. Am J Physiol Lung Cell Mol Physiol. 2015 May 15;308(10):L1058-67. doi: 10.1152/ajplung.00400.2014. Epub 2015 Mar 13.
- Rhodes MA, Carraway MS, Piantadosi CA, Reynolds CM, Cherry AD, Wester TE, Natoli MJ, Massey EW, Moon RE, Suliman HB. Carbon monoxide, skeletal muscle oxidative stress, and mitochondrial biogenesis in humans. Am J Physiol Heart Circ Physiol. 2009 Jul;297(1):H392-9. doi: 10.1152/ajpheart.00164.2009. Epub 2009 May 22.
- Fredenburgh LE, Kraft BD, Hess DR, Harris RS, Wolf MA, Suliman HB, Roggli VL, Davies JD, Winkler T, Stenzler A, Baron RM, Thompson BT, Choi AM, Welty-Wolf KE, Piantadosi CA. Effects of inhaled CO administration on acute lung injury in baboons with pneumococcal pneumonia. Am J Physiol Lung Cell Mol Physiol. 2015 Oct 15;309(8):L834-46. doi: 10.1152/ajplung.00240.2015. Epub 2015 Aug 28.
- Hausberg M, Somers VK. Neural circulatory responses to carbon monoxide in healthy humans. Hypertension. 1997 May;29(5):1114-8. doi: 10.1161/01.hyp.29.5.1114.
- Mayr FB, Spiel A, Leitner J, Marsik C, Germann P, Ullrich R, Wagner O, Jilma B. Effects of carbon monoxide inhalation during experimental endotoxemia in humans. Am J Respir Crit Care Med. 2005 Feb 15;171(4):354-60. doi: 10.1164/rccm.200404-446OC. Epub 2004 Nov 19.
- Peterson JE, Stewart RD. Predicting the carboxyhemoglobin levels resulting from carbon monoxide exposures. J Appl Physiol. 1975 Oct;39(4):633-8. doi: 10.1152/jappl.1975.39.4.633.
- Stewart RD, Peterson JE, Baretta ED, Bachand RT, Hosko MJ, Herrmann AA. Experimental human exposure to carbon monoxide. Arch Environ Health. 1970 Aug;21(2):154-64. doi: 10.1080/00039896.1970.10667214. No abstract available.
- Zevin S, Saunders S, Gourlay SG, Jacob P, Benowitz NL. Cardiovascular effects of carbon monoxide and cigarette smoking. J Am Coll Cardiol. 2001 Nov 15;38(6):1633-8. doi: 10.1016/s0735-1097(01)01616-3.
- Ren X, Dorrington KL, Robbins PA. Respiratory control in humans after 8 h of lowered arterial PO2, hemodilution, or carboxyhemoglobinemia. J Appl Physiol (1985). 2001 Apr;90(4):1189-95. doi: 10.1152/jappl.2001.90.4.1189.
- Pecorella SR, Potter JV, Cherry AD, Peacher DF, Welty-Wolf KE, Moon RE, Piantadosi CA, Suliman HB. The HO-1/CO system regulates mitochondrial-capillary density relationships in human skeletal muscle. Am J Physiol Lung Cell Mol Physiol. 2015 Oct 15;309(8):L857-71. doi: 10.1152/ajplung.00104.2015. Epub 2015 Jul 17.
- Fredenburgh LE, Perrella MA, Barragan-Bradford D, Hess DR, Peters E, Welty-Wolf KE, Kraft BD, Harris RS, Maurer R, Nakahira K, Oromendia C, Davies JD, Higuera A, Schiffer KT, Englert JA, Dieffenbach PB, Berlin DA, Lagambina S, Bouthot M, Sullivan AI, Nuccio PF, Kone MT, Malik MJ, Porras MAP, Finkelsztein E, Winkler T, Hurwitz S, Serhan CN, Piantadosi CA, Baron RM, Thompson BT, Choi AM. A phase I trial of low-dose inhaled carbon monoxide in sepsis-induced ARDS. JCI Insight. 2018 Dec 6;3(23):e124039. doi: 10.1172/jci.insight.124039.
- Rosas IO, Goldberg HJ, Collard HR, El-Chemaly S, Flaherty K, Hunninghake GM, Lasky JA, Lederer DJ, Machado R, Martinez FJ, Maurer R, Teller D, Noth I, Peters E, Raghu G, Garcia JGN, Choi AMK. A Phase II Clinical Trial of Low-Dose Inhaled Carbon Monoxide in Idiopathic Pulmonary Fibrosis. Chest. 2018 Jan;153(1):94-104. doi: 10.1016/j.chest.2017.09.052. Epub 2017 Oct 31.
研究記録日
主要日程の研究
研究開始 (実際)
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 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
本研究に関する用語
その他の研究ID番号
- 2018P002051
- CDMRP-PR171025, W81XWH1810667 (その他の助成金/資金番号:United States Army Medical Research Acquisition Activity)
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?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
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