Pulmonary Complications of Hematopoietic Stem Cell Transplantation
The purpose of this study is to determine risk factors associated with the development of lung disease after hematopoietic stem cell transplantation. Depending on the results and findings of this study, it may be possible to predict who is at higher risk of serious complications and ultimately develop therapies to prevent or treat this lung disease.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Pulmonary Complications of Hematopoietic Stem Cell Transplantation|
- To determine factors contributing to the development of lung disease after hematopoietic stem cell transplantation (HSCT [ Time Frame: end of study ] [ Designated as safety issue: No ]
- 1b) To identify the mechanisms by which CD8+ regulatory cells suppress the alloimmune response. [ Time Frame: end of study ] [ Designated as safety issue: No ]
Biospecimen Retention: Samples With DNA
Blood draw will be 10cc of blood, analysis includes % of CD8+CD57+ and CD8+CD28-. On one occasion, after the 6 mo. post transplant timepoint the subject will be asked to donate a larger amount of blood (50cc) if they are not anemic.
***Respiratory Specimens of extra BAL or biopsy specimens will be collected at any point a study patient undergoes a clinically warranted bronchoscopy or lung biopsy procedure and the diagnostic physician feels there is adequate specimen to use extra sample for research purposes.
|Study Start Date:||October 2005|
|Estimated Study Completion Date:||December 2016|
|Estimated Primary Completion Date:||December 2016 (Final data collection date for primary outcome measure)|
hematopoietic stem cell transplantation (HSCT)
The development of pulmonary complications after hematopoietic stem cell transplantation is responsible for significant morbidity and mortality. The incidence of pulmonary disease has been reported to be as high as 50% of all patients that undergo transplant. The most common manifestation of early onset lung disease is idiopathic pneumonia syndrome. This can occur in autologous and allogeneic transplants, with an incidence between 5% and 10% and a mortality rate as high as 74%(1). Late onset pulmonary disease may be even more frequent and has been reported between 10-24% in recipients of allogeneic HSCT(2-4). Additionally, a recent study demonstrated 26% of patients develop airflow obstruction after transplant and this was correlated with mortality(5). One quite useful classification system divides late onset pulmonary disease into bronchiolitis obliterans and interstitial pneumonia(4). Interstitial pneumonia is a condition characterized by diffuse infiltrates, often with lymphocyte predominance, and associated with restrictive defects on pulmonary function testing. Bronchiolitis obliterans is characterized by progressive airflow obstruction and a normal radiograph (except possibly associated air trapping). The incidence of bronchiolitis obliterans after HSCT varies widely, but is usually reported to be between 1% and 11%(6-8), although the presence of post HSCT obstructive airway disease was reported at 26% in a recent large study(5). Late onset pulmonary diseases are often treated with increased immunosuppression, but the prognosis is poor with limited response to therapy(9; 4).
|Contact: Karen Wood, MDemail@example.com|
|Contact: Janice Drake, CRTTfirstname.lastname@example.org|
|United States, Ohio|
|The Ohio State University||Recruiting|
|Columbus, Ohio, United States, 43210|
|Contact: Janice Drake, CRTT 614-293-4978 email@example.com|
|Contact: Anita Kapil 614-293-4978 Anita.Kapil@osumc.edu|
|Principal Investigator:||Karen Wood, MD||Ohio State University|