Montelukast to Treat Bronchiolitis Obliterans
Bronchiolitis obliterans is a form of chronic graft-versus-host disease (GVHD) that sometimes develops after stem cell transplantation (SCT) or bone marrow transplantation (BMT).
In bronchiolitis obliterans, immune cells that normally fight infections attack the lungs of the transplant recipient, causing destruction of lung tissue and fibrosis (scarring). When fibrosis develops, the lungs cannot work properly.
Montelukast (Singulair) is a drug that has been used for many years to treat asthma. Its use as a treatment for bronchiolitis obliterans is experimental.
To see if montelukast improves or stabilizes lung function in patients who develop bronchiolitis obliterans after BMT or SCT.
To assess the safety of montelukast in patients with bronchiolitis obliterans after BMT or SCT
To see if montelukast affects the cells that damage the lungs.
To see if montelukast improves other forms of chronic GVHD, quality of life, and overall survival in patients with bronchiolitis obliterans after BMT or SCT.
Patients 6 years of age and older with bronchiolitis obliterans following stem cell transplantation.
Patients take one montelukast tablet daily for 6 months and undergo the following procedures during this period:
- Lung function tests. The patient breathes into a machine that measures the amount of air that goes into and out of the lungs. This test is done once a month for 3 months, then at 6 months, 12 months and 24 months.
- Medical history and physical examination at the study site about every 3 months for the first year of the study and then at 12 months and 24 months. Patients also have physical examinations monthly for the first 6 months at their primary doctors office. Tests may include blood and urine tests, chest computed tomography (CT) scans, echocardiogram (heart ultrasound), 2- and 6-minute walk tests, and quality-of-life questionnaires.
- Bronchoalveolar lavage in patients 18 years of age and older. The subject s mouth, nose and airways are numbed with lidocaine. Some patients may need sedation or anesthesia for the procedure. A tube (bronchoscope) is then passed through the nose into the airway, and a small amount of fluid is put into the lung. The fluid is then removed and tested for infections or other lung problems.
- Apheresis to collect white blood cells. Whole blood is collected through a tube inserted into a vein in the arm. The white cells are extracted in a cell separator machine, and the rest of the blood is returned to the body through a tube placed in a vein in the other arm. The cells are used to study GVHD and bronchiolitis obliterans.
- Patients who wish to continue montelukast therapy after 6 months may do so under the care of their primary doctor, if both agree to the continuation....
|Bronchiolitis Obliterans Chronic Graft Versus Host Disease Leukotriene Montelukast Stem Cell Transplant||Drug: Singulair (Montelukast Sodium)||Phase 2|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||Multi-Institutional Prospective Phase II Study of Montelukast for the Treatment of Bronchiolitis Obliterans Following Allogeneic or Autologous Stem Cell Transplantation in Children and Adults|
- Number of Participants With Stable or Improved Predicted Forced Expiratory Volume 1 (FEV-1) With Published Literature [ Time Frame: 180 days ]Responsive disease (RD) will be defined as ≥15% absolute improvement in the percentage predicted FEV-1. Progressive disease (PD) will be defined as >15% decrease in FEV-1 documented on 2 pulmonary function test (PFT) evaluations greater than 2 weeks apart. Stable disease (SD) will be defined as <15% change in the absolute FEV-1.
- Number of Participants With Improved, Stable or Declined Forced Expiratory Volume 1 (FEV-1) Slope at 6 Months [ Time Frame: 180 days ]FEV-1 slope of decline was generated using regression line of FEV-1 value vs. days post hematopoietic stem cell transplant. Responsive disease (RD) for the slope of FEV-1 change will be an increase in the slope of absolute FEV-1. Progressive disease (PD) for the slope of FEV-1 change will be a decrease in the slope of absolute FEV-1. Stable disease (SD) for the slope of FEV-1 change will be a 0 change in FEV-1 slope.
- Number of Participants With Adverse Events [ Time Frame: 71 months and 17 days ]Here is the number of participants with adverse events. For a detailed list of adverse events, see the adverse event module.
- Forced Expiratory Volume 1 (FEV-1)/Vital Capacity (VC) [ Time Frame: Baseline ]Pulmonary function test performed for eligibility and baseline.
- Percentage Overall 2-Year Survival [ Time Frame: 2 years ]Percentage of participants alive at 2 years.
- Number of Non-Infected Participants at Baseline With Cysteinyl Leukotriene Receptor Expression on Cluster of Differentiation (CD4) and CD8 T Cells, Granulocytes, and Eosinophils in Bronchoalveolar Lavage (BAL) Fluid [ Time Frame: Day 1 of study ]Fluid from the bronchoalveolar lavage in adult participants (pediatric optional) will be collected and sent to the lab to be evaluated for infectious diseases by flow cytometry
|Actual Study Start Date:||March 2008|
|Estimated Study Completion Date:||May 2018|
|Primary Completion Date:||November 2015 (Final data collection date for primary outcome measure)|
Experimental: Montelukast to Treat Bronchiolitis Obliterans
Montelukast for the treatment of BO following allogeneic or autologous stem cell transplant.
Drug: Singulair (Montelukast Sodium)
Singulair (Montelukast Sodium):5-10 mg (weight based dosing) by mouth (PO) hour of sleep (HS)
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00656058
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike|
|Bethesda, Maryland, United States, 20892|
|Principal Investigator:||Ronald E Gress, M.D.||National Cancer Institute (NCI)|