RESULT (REflux Surgery in Lung Transplantation) Preliminary Study Protocol (RESULT)
2014년 9월 10일 업데이트: Duke University
Prospective and Retrospective Study to Develop a Multi-center Randomized Study, to Determine if Prevention of GERD Related Aspiration by Surgical Fundoplication Improves Lung Allograft Function
The purpose of the prospective study is to collect information surrounding lung transplant in order to develop a randomized study to determine if prevention of gastroesophageal reflux disease (GERD) related aspiration (stomach acid coming up from the stomach into the esophagus) by surgical fundoplication improves lung rejection. Lung transplantation has evolved into an effective treatment for patients with end-stage lung disease; however, a significant limitation to long-term survival is patients develop a condition of scarring known as chronic lung rejection, which can cause lung function to deteriorate, thereby reducing a patient's chances for survival. Preliminary research has shown a correlation between the presence of gastroesophageal reflux disease (GERD) and impaired early lung rejection as assessed by a breathing test, FEV1 (the amount of forced expired air volume in 1 second).
The Investigator is interested in learning more about this condition and the potential for aspiration (inhaling fluid) injury. The primary goal of this preliminary study will be to identify aspiration markers that are correlated with adverse clinical outcomes (increased early rejection, decreased FEV1) that may be used as inclusion criteria for the future randomized trial.
The purpose of the retrospective study is to collect information surrounding lung transplant in order to develop a randomized study to determine if prevention of gastroesophageal reflux disease (GERD) related aspiration (stomach acid coming up from the stomach into the esophagus) by surgical fundoplication improves lung rejection.
The goal of this retrospective data collection is to review the following:
- subject outcome event rates for subjects with and without gastroesophageal reflux disease (GERD) for survival, Bronchiolitis Obliterans Syndrome (BOS), acute rejection and Forced Expiratory Volume in the first second (FEV-1),
- the estimated treatment effect of fundoplication on the above event rates,
- a threshold effect for Bronchiolitis Obliterans Syndrome (BOS) and/or death are more likely to occur at higher or more proximal acid or non-acid contact times.
This data will be collected in order to better design and coordinate a multicenter prospective study.
연구 개요
상태
완전한
정황
상세 설명
Prospective Group: Approximately 125 Bronchoalveolar Lavage (BAL) samples will be collected from eligible subjects at the time of clinical bronchoscopies and will be within 2 weeks of their esophageal study. The Bronchoalveolar Lavage (BAL) samples will be assayed for bile acids; pepsin, pepsinogen I and II; trypsin; gastrin, and Lipopolysaccharide (LPS) content. Short-term clinical outcome measures including acute rejection episodes, and Forced Expiratory Volume in the first second (FEV-1) at one year will be collected. Correlation between markers of reflux and aspiration will be analyzed.
Retrospective Group: Up to 800 charts within the past 5 years will be reviewed for 1) subject outcome event rates for subjects with and without Gastroesophageal Reflux Disease (GERD) for survival, Bronchiolitis Obliterans Syndrome (BOS), acute rejection and Forced Expiratory Volume in the first second (FEV-1), 2) what is the estimated treatment effect of fundoplication on the above event rates, 3) is there a threshold effect such that events such as BOS and death are more likely to occur only at higher or more proximal acid or non-acid contact times. This review will better address the role of Gastroesophageal Reflux Disease (GERD) in lung allograft failure, the clinical utility of surgical fundoplication in preventing lung allograft injury, and the role that acid and non-acid reflux as related to aspiration causes lung allograft injury as it relates to a wider population.
연구 유형
관찰
등록 (실제)
647
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
16년 이상 (어린이, 성인, 고령자)
건강한 자원 봉사자를 받아들입니다
아니
연구 대상 성별
모두
샘플링 방법
비확률 샘플
연구 인구
Male or non-pregnant female subject ≥16 years of age with a double-lung transplant who have undergone a 24-hour esophageal pH and/orimpedance probe study within 12 months prior to transplant and/or within 12 months following transplantation.
설명
Inclusion Criteria:
- Male or non-pregnant female subject
- 16 years of age
- Recipient of a double-lung transplant
- Previously have a 24-hour esophageal pH and/or impedance probe study within 12 months prior to transplant and/or within 12 months following transplantation. If the subject expired prior to 12 months from transplant date, they must have had a 24-hour esophageal pH and/or impedance probe study to be eligible in the study.
Exclusion Criteria:
- Recipient of a single-lung transplant
- Recipient of a re-do lung transplant
- Recipient of a double-lung/heart or double-lung/ other organ transplant
- Do not have a 24-hour esophageal pH and/or impedance probe study within 12 months pre-transplant or within 12 months following transplantation. The subject expired less than 12 months post transplant without having a 24-hour esophageal pH and/or impedance probe study
- No Spirometry data is available for the subject
- Subject who is participating in any other interventional clinical study
- Unable to provide written informed consent or participate in long-term follow-up
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
|---|
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Prospective Group
Those patients that will be consented and data collected prospectively
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Retrospective Group
Those charts that will be utilized to collect retrospective data, waiver of consent will be granted by the IRBs.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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BAL aspiration markers
기간: 1 year
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For the prospective study analysis, we will be assessing the relationship of gastroesophageal reflux and aspiration post lung transplantation with the occurrence of lung allograft dysfunction by reviewing BAL samples prospectively collected in approximately 125 subjects.
These BAL samples will be assayed for bile acids; pepsin, pepsinogen I and II; trypsin; gastrin, and LPS content.
The correlation of the aspiration biomarkers to acute rejection, BOS, death and FEV-1 at one year will be assessed.
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1 year
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Death
기간: 1 year
|
For the retrospective study, the first specific goal of data collection is outcome event rates for subjects with and without GERD for survival and the estimated treatment effect of fundoplication on the above event rates.
A threshold effect for death is more likely to occur at higher or more proximal acid or non-acid contact times.
Up to 5 years of follow-up data will be available for analysis with the primary comparison at one year.
These data will be used to better design and coordinate a multicenter prospective study.
|
1 year
|
|
BOS
기간: 1 year
|
For the retrospective study, the second specific goal of data collection is event rates for subjects with and without GERD for BOS and the estimated treatment effect of fundoplication on the above event rates.
A threshold effect for BOS is more likely to occur at higher or more proximal acid or non-acid contact times.
Up to 5 years of follow-up data will be available for analysis with the primary comparison at one year.
These data will be used to better design and coordinate a multicenter prospective study.
|
1 year
|
|
FEV-1
기간: 1 year
|
For the retrospective study, the third goal of data collection is evaluation of FEV-1 changes for subjects with and without GERD and the estimated treatment effect of fundoplication.
Up to 5 years of follow-up data will be available for analysis with the primary comparison at one year.
Data will be used to design a multicenter prospective study, address the role of GERD in lung allograft failure, the clinical utility of surgical fundoplication in preventing lung allograft injury, and the role that acid and non-acid reflux as related to aspiration causes lung allograft injury.
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1 year
|
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Acute Rejection
기간: 1 year
|
For the retrospective study, the final goal of data collection is evaluation of acute rejection episodes for subjects with and without GERD and the estimated treatment effect of fundoplication.
Up to 5 years of follow-up data will be available for analysis with the primary comparison at one year.
Data will be used to design a multicenter prospective study and to address the role of GERD in lung allograft failure, the clinical utility of surgical fundoplication in preventing lung allograft injury, and the role that acid and non-acid reflux as related to aspiration causes lung allograft injury.
|
1 year
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
스폰서
수사관
- 수석 연구원: Robert D. Davis, MD, Duke University
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
일반 간행물
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- Dusmet M, Maurer J, Winton T, Kesten S. Methotrexate can halt the progression of bronchiolitis obliterans syndrome in lung transplant recipients. J Heart Lung Transplant. 1996 Sep;15(9):948-54.
- Reichenspurner H, Meiser BM, Kur F, Wagner F, Welz A, Uberfuhr P, Briegel H, Reichart B. First experience with FK 506 for treatment of chronic pulmonary rejection. Transplant Proc. 1995 Jun;27(3):2009. No abstract available.
- Kesten S, Chaparro C, Scavuzzo M, Gutierrez C. Tacrolimus as rescue therapy for bronchiolitis obliterans syndrome. J Heart Lung Transplant. 1997 Sep;16(9):905-12.
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- Whyte RI, Rossi SJ, Mulligan MS, Florn R, Baker L, Gupta S, Martinez FJ, Lynch JP 3rd. Mycophenolate mofetil for obliterative bronchiolitis syndrome after lung transplantation. Ann Thorac Surg. 1997 Oct;64(4):945-8. doi: 10.1016/s0003-4975(97)00845-x.
- Diamond DA, Michalski JM, Lynch JP, Trulock EP 3rd. Efficacy of total lymphoid irradiation for chronic allograft rejection following bilateral lung transplantation. Int J Radiat Oncol Biol Phys. 1998 Jul 1;41(4):795-800. doi: 10.1016/s0360-3016(98)00113-8.
- Higenbottam T, Jackson M, Woolman P, Lowry R, Wallwork J. The cough response to ultrasonically nebulized distilled water in heart-lung transplantation patients. Am Rev Respir Dis. 1989 Jul;140(1):58-61. doi: 10.1164/ajrccm/140.1.58.
- Rivero DH, Lorenzi-Filho G, Pazetti R, Jatene FB, Saldiva PH. Effects of bronchial transection and reanastomosis on mucociliary system. Chest. 2001 May;119(5):1510-5. doi: 10.1378/chest.119.5.1510.
- Tomkiewicz RP, App EM, Shennib H, Ramirez O, Nguyen D, King M. Airway mucus and epithelial function in a canine model of single lung autotransplantation. Chest. 1995 Jan;107(1):261-5. doi: 10.1378/chest.107.1.261.
- Veale D, Glasper PN, Gascoigne A, Dark JH, Gibson GJ, Corris PA. Ciliary beat frequency in transplanted lungs. Thorax. 1993 Jun;48(6):629-31. doi: 10.1136/thx.48.6.629.
- Herve P, Silbert D, Cerrina J, Simonneau G, Dartevelle P. Impairment of bronchial mucociliary clearance in long-term survivors of heart/lung and double-lung transplantation. The Paris-Sud Lung Transplant Group. Chest. 1993 Jan;103(1):59-63. doi: 10.1378/chest.103.1.59.
- Blondeau K, Mertens V, Vanaudenaerde BA, Verleden GM, Van Raemdonck DE, Sifrim D, Dupont LJ. Nocturnal weakly acidic reflux promotes aspiration of bile acids in lung transplant recipients. J Heart Lung Transplant. 2009 Feb;28(2):141-8. doi: 10.1016/j.healun.2008.11.906.
- Sweet MP, Herbella FA, Leard L, Hoopes C, Golden J, Hays S, Patti MG. The prevalence of distal and proximal gastroesophageal reflux in patients awaiting lung transplantation. Ann Surg. 2006 Oct;244(4):491-7. doi: 10.1097/01.sla.0000237757.49687.03.
- Savarino E, Bazzica M, Zentilin P, Pohl D, Parodi A, Cittadini G, Negrini S, Indiveri F, Tutuian R, Savarino V, Ghio M. Gastroesophageal reflux and pulmonary fibrosis in scleroderma: a study using pH-impedance monitoring. Am J Respir Crit Care Med. 2009 Mar 1;179(5):408-13. doi: 10.1164/rccm.200808-1359OC. Epub 2008 Dec 18.
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- Benden C, Aurora P, Curry J, Whitmore P, Priestley L, Elliott MJ. High prevalence of gastroesophageal reflux in children after lung transplantation. Pediatr Pulmonol. 2005 Jul;40(1):68-71. doi: 10.1002/ppul.20234.
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- Rinaldi M, Martinelli L, Volpato G, Pederzolli C, Silvestri M, Pederzolli N, Arbustini E, Vigano M. Gastro-esophageal reflux as cause of obliterative bronchiolitis: a case report. Transplant Proc. 1995 Jun;27(3):2006-7. No abstract available.
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- Stovold R, Forrest IA, Corris PA, Murphy DM, Smith JA, Decalmer S, Johnson GE, Dark JH, Pearson JP, Ward C. Pepsin, a biomarker of gastric aspiration in lung allografts: a putative association with rejection. Am J Respir Crit Care Med. 2007 Jun 15;175(12):1298-303. doi: 10.1164/rccm.200610-1485OC. Epub 2007 Apr 5.
- Meltzer AJ, Weiss MJ, Veillette GR, Sahara H, Ng CY, Cochrane ME, Houser SL, Sachs DH, Rosengard BR, Madsen JC, Wain JC, Allan JS. Repetitive gastric aspiration leads to augmented indirect allorecognition after lung transplantation in miniature swine. Transplantation. 2008 Dec 27;86(12):1824-9. doi: 10.1097/TP.0b013e318190afe6.
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- S.C Murthy1 ERN, D.P. Mason1, M.M. Budev2, A.I. Nunez1, L. Thuita3, J.T. Chapman2, G.B. Pettersson1, E.H. Blackstone1, 3 Preoperative Gastroesophageal Reflux Impacts Early Outcomes after Lung Transplantation. The Journal of Heart and Lung Transplantation. 2009 February 28(2):S214.
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- Hartwig MG, Appel JZ, Davis RD. Antireflux surgery in the setting of lung transplantation: strategies for treating gastroesophageal reflux disease in a high-risk population. Thorac Surg Clin. 2005 Aug;15(3):417-27. doi: 10.1016/j.thorsurg.2005.03.001.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작
2011년 9월 1일
기본 완료 (실제)
2013년 6월 1일
연구 완료 (실제)
2013년 8월 1일
연구 등록 날짜
최초 제출
2011년 6월 28일
QC 기준을 충족하는 최초 제출
2011년 7월 29일
처음 게시됨 (추정)
2011년 8월 1일
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
2014년 9월 12일
QC 기준을 충족하는 마지막 업데이트 제출
2014년 9월 10일
마지막으로 확인됨
2014년 9월 1일
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- Pro00025618
- 1R34HL105422-01 (미국 NIH 보조금/계약)
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .