Alvelestat (MPH966), an Oral Neutrophil Elastase Inhibitor, in Bronchiolitis Obliterans Syndrome After Allogeneic Hematopoietic Stem Cell Transplantation

Running, not enrolling · Phase 1/Phase 2

Conditions studied: Chronic Graft vs Host Disease, Chronic Graft-Versus-Host Disease, Bronchiolitis Obliterans Syndrome

In brief

Background: Bronchiolitis obliterans syndrome (BOS) is a complication people can experience after hematopoietic stem cell transplant. It usually affects people with chronic graft versus host disease (cGVHD). This occurs when donor stem cells attack the cells of the person who received them. BOS reduces airflow and oxygen levels in the body. It may be caused by neutrophil elastase in the body. Researchers believe the new drug alvelestat (MPH966) may help. Objectives: To test the safety of alvelestat (MPH966) and see what dose best inhibits neutrophil elastase in people with BOS after a stem cell transplant. To study how well the best dose improves lung function in those people. Eligibility: Adults 18 and older who have had a hematopoietic stem cell transplant and have cGVHD and BOS. Design: Participants will be screened with a medical history, physical exam, and blood and urine tests. They will have lung function and heart function tests. They will have computed tomography scans of the chest. Study part 1: Participants will take the starting dose of the study drug by mouth twice a day for 14 days. This is 1 cycle. They will get different doses, for up to 4 cycles. Study part 2: Participants will take the study drug twice a day by mouth at the dose set in part 1, for up to 12 months. Participants will keep medicine diaries. Participants will have several study visits. These may include: Repeats of the screening tests. Bronchoscopy with bronchoalveolar lavage. Sputum samples taken. 6-minute walking test. cGVHD assessment and answer questions. Participants will be contacted after the study for up to 24 months. ...

Key facts

Study ID

NCT02669251

Run by

National Cancer Institute (NCI)

People needed

14

Starts

2016-04-28

Expected to finish

2027-12-01

Last updated by the study team

2026-07-28

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may not qualify if…

• FEV1 <30% (based on absolute percent predicted using USA-ITS-NIH equation) on pulmonary function testing
• Patients with clinically relevant abnormal ECG findings, including abnormal QTc>500 ms on screening ECG (Note: If a patient has a QTc interval >500 ms on screening ECG, the screening ECG may be repeated twice [at least 24 hours apart] for a total of 3 ECGs).
• Patients who are receiving any other investigational agents
• Recurrent or progressive malignancy requiring anticancer treatment
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, acute kidney injury, or psychiatric illness/social situations within the previous 4 weeks that would limit compliance with study requirements.
• Pregnant women are excluded from this study because the teratogenic effects of alvelestat (MPH966) are unknown. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with alvelestat (MPH966), nursing should be discontinued if the mother is treated with this agent.
• Prior use of neutrophil elastase inhibitors
• Patients with a history of cirrhosis, esophageal varices, ascites and hepatic encephalopathy
• History of other chronic diseases (i.e., metabolic associated steatohepatitis (MASH), autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis, Wilson's disease, haemochromatosis)
• Patients with a history of significant alcohol consumption for a period of more than 3 consecutive months within 1 year prior to screening. NOTE: Patients must also be willing to refrain from drinking alcohol during study participation, until end of study drug administration

Where it is running

• National Institutes of Health Clinical Center — Bethesda, Maryland, United States

Full record on ClinicalTrials.gov

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