A 2-Part, Phase 2 Open-label and Crossover Study of Belumosudil for Treatment of Idiopathic Pulmonary Fibrosis
Idiopathic Pulmonary Fibrosis
About this trial
This is an interventional treatment trial for Idiopathic Pulmonary Fibrosis focused on measuring Pulmonary Fibrosis, Fibrosis, Idiopathic Interstitial Pneumonias, Lung Diseases
Eligibility Criteria
Inclusion Criteria:
A subject had to meet all of the following criteria to be eligible for the study:
- Adult male and postmenopausal/surgically sterilized female subjects at least 18 years of age (if female, was surgically sterilized [i.e., total hysterectomy, or bilateral salpingo-oophorectomy]).
- Able to provide written informed consent before the performance of any study specific procedures.
- IPF diagnosis within 5 years before study entry, proven according to the American Thoracic Society/European Respiratory Society consensus conference criteria, with surgical lung biopsy. In the absence of a surgical lung biopsy, high-resolution computerized tomography (HRCT) consistent with usual interstitial pneumonitis.
- Resting state pulse oximeter oxygen saturation (SpO2) ≥ 88% with or without supplemental oxygen, Forced Vital Capacity % (FVC%) ≥ 50% normal predicted value, and diffusing capcity (in the lung) of carbon monoxide (DLCO) ≥ 30% normal predicted value at baseline.
Men with partners of childbearing potential willing to use 2 medically acceptable methods of contraception during the trial and for 3 months after the last dose of study drug. Effective birth control includes:
- Intrauterine device plus 1 barrier method
- Stable doses of hormonal contraception for ≥ 3 months (e.g., oral, injectible, implant, transdermal) plus 1 barrier method
- 2 barrier methods. Effective barrier methods were male or female condoms, diaphragms, and spermicides (creams or gels containing a chemical to kill sperm)
- Vasectomy.
Have adequate bone marrow function:
- Absolute neutrophil count > 1500/mm^3
- Hemoglobin (Hb) > 9.0 g/L
- Platelets > 100,000/mm^3
- Willing to complete all study measurements and assessments in compliance with protocol
- Had either received pirfenidone and/or nintedanib or offered both treatments (with last dose administered at least 1 month before the expected start of study drug dosing). If either or both pirfenidone and nintedanib treatment had not been given, then documentation that the subject was offered both treatments must have been documented.
Exclusion Criteria:
A subject who met any of the following criteria was ineligible for the study:
- Interstitial lung disease caused by conditions other than IPF
- Severe concomitant illness limiting life expectancy (< 1 year)
- DLCO < 30% predicted
- Residual volume (RV) ≥ 120% predicted
- Obstructive lung disease: Forced Expiratory Volume in 1 Second (FEV1/FVC ratio < 0.70)
- Documented sustained improvement of the subject's IPF condition up to 12 months before study entry with or without IPF-specific therapy
- Pulmonary infection or upper respiratory tract infection (URTI) within 4 weeks before study entry
- Acute or chronic impairment (other than dyspnea) limiting the ability to comply with study requirements (e.g., pulmonary function tests [PFTs])
- Chronic heart failure with New York Heart Association Class III/IV or known left ventricular ejection fraction < 25%
- Moderate to severe hepatic impairment (i.e., Child-Pugh Class B or C)
- Estimated creatinine clearance < 30 mL/min
- Aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) > 2.0 * upper limit of normal (ULN)
- Hb < 75% of the lower limit of normal
- Systolic blood pressure < 100 mmHg
- Pregnant or breastfeeding female subject
- Men whose partner is pregnant or breastfeeding
- Current drug or alcohol dependence
Chronic treatment with the following drugs within 4 weeks of study entry and during the study:
- Immunosuppressive or cytotoxic drugs including cyclophosphamide and azathioprine
- Antifibrotic drugs including pirfenidone, nintedanib, D-penicillamine, colchicine, tumor necrosis factor-alpha blockers, imatinib, and interferon-γ
- Chronic use of N-acetylcysteine prescribed for IPF (> 600 mg/day)
- Oral anticoagulants prescribed for IPF
- Treatment with endothelin receptor antagonists within 4 weeks before study entry
- Systemic treatment within 4 weeks before study entry with cyclosporine A or tacrolimus, everolimus, or sirolimus (calcineurin or mammalian target of rapamycin inhibitors)
- Previous exposure to belumosudil or known allergy/sensitivity to belumosudil or any other Rho-associated protein kinase 2 (ROCK2) inhibitor
- Planned treatment or treatment with another investigational drug within 4 weeks before study entry
- Taking a medication with the potential for QTc prolongation
- Taking a drug sensitive substrate of CYP enzymes
- Taking a strong inducer of CYP3A4
- Had consumed an herbal medication (e.g., St. John's Wort) or grapefruit/grapefruit juice within 14 days prior to the Week 1 Day 1 visit
Sites / Locations
- Pulmonary Associates, PA
- University of Arizona
- UC Davis Medical Center, Division of Pulmonary/CC/SM
- St. Francis Medical Institute
- Pulmonary Disease Specialists, PA, d/b/a PDS Research
- Central Florida Pulmonary Group, PA
- Piedmont Healthcare Pulmonary and Critical Care Research
- Pulmonix, LLC
- University of Pittsburgh Medical Center
- Medical University of South Carolina
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Belumosudil-R
BSC-R
Subjects receive two 200 mg tablets of belumosudil (400 mg) PO QD for 24 weeks. Subjects may also continue treatment with belumosudil 400 mg PO QD after 24 weeks. No subject may receive more than 96 weeks of treatment with belumosudil
Subjects receive best supportive care as determined by the physician. Subjects may later crossover to treatment with belumosudil 400 mg PO QD. No subject may receive more than 96 weeks of treatment with belumosudil.