The purpose of this study is to compare the effect of standard care, versus standard of care plus antimicrobial therapy (co-trimoxazole or doxycycline), on clinical outcomes in patients diagnosed with idiopathic pulmonary fibrosis (IPF).
This is a randomized, un-blinded, phase III, multi-center clinical trial of an antimicrobial therapy strategy in idiopathic pulmonary fibrosis patients. Our overall hypothesis is that reducing harmful microbial impact with antimicrobial therapy will reduce the risk of non-elective, respiratory hospitalization or death in patients with Idiopathic Pulmonary Fibrosis (IPF). Subjects will be randomized 1:1 to either receive a prescription drug voucher for oral antimicrobial therapy in the form of one double strength 160 milligrams (mg) trimethoprim/800mg sulfamethoxazole (double strength co-trimoxazole) twice daily plus folic acid 5 mg daily OR doxycycline 100mg once daily if weight \< 50 kilograms (kg) or 100mg twice daily if weight \> 50 kg. Patients randomized to receive antimicrobial therapy will be given co-trimoxazole unless they have an allergy, contraindication to co-trimoxazole, renal insufficiency (glomerular filtration rate (GFR) \< 30 milliliters (ml)), are hyperkalemic (potassium \> 5 milliequivalents(mEq)/liter(L)), or are concomitantly taking an angiotensin converting enzyme inhibitor (ACEI), angiotensin receptor blocker (ARB), or potassium sparing diuretic in which case they will receive doxycycline. Participation in this study will be between 12 months and 36 months depending on time of enrollment.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
513
160mg trimethoprim/800mg sulfamethoxazole (double strength co-trimoxazole) twice daily plus folic acid 5 mg daily OR doxycycline 100mg once daily if weight \< 50 kilograms or 100mg twice daily if weight \> 50 kilograms for up to 36 months
Standard of care
Number of Participants With First Non-elective, Respiratory Hospitalization or All-cause Mortality
Time frame: Randomization to up to 35 months
Number of Participants With Death From Any Cause
Time frame: Randomization to up to 35 months
Number of Participants With First Non-elective, Respiratory Hospitalization
Time frame: Randomization to up to 35 months
Number of Participants With First Non-elective, All-cause Hospitalization
Time frame: Randomization to up to 35 months
Total Number of Non-elective Respiratory Hospitalizations
Time frame: Randomization to up to 35 months
Total Number of Non-elective All-cause Hospitalizations
Time frame: Randomization to up to 35 months
Percent Change in Forced Vital Capacity (FVC)
Time frame: Randomization to 12 months
Percent Change in Diffusion Capacity of Lungs for Carbon Monoxide (DLCO)
Time frame: Randomization to 12 months
Total Number of Respiratory Infections
Time frame: Randomization to up to 35 months
Change in UCSD-Shortness of Breath Questionnaire
Change in University of California San Diego (UCSD) Shortness of Breath Questionnaire (0 - 120 range). A lower score indicates a better health score. The UCSD-Shortness of Breath Questionnaire assesses the severity of shortness of breath during specific activities of daily living.
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University of Alabama at Birmingham
Birmingham, Alabama, United States
University of Arizona
Tucson, Arizona, United States
University of California Davis Medical Center
Sacramento, California, United States
Stanford
Stanford, California, United States
Loyola University Chicago
Chicago, Illinois, United States
Northwestern University
Chicago, Illinois, United States
University of Chicago
Chicago, Illinois, United States
University of Kansas
Kansas City, Kansas, United States
Massachusetts General Hospital
Boston, Massachusetts, United States
Brigham and Women's Hospital
Boston, Massachusetts, United States
...and 21 more locations
Time frame: Randomization to 12 months
Change in Fatigue Severity Scale Score
Fatigue Severity Scale score (1 - 7 range). A lower score indicates a better health score. The Fatigue Severity Scale measures the severity of fatigue and its effect on a person's activities and lifestyle.
Time frame: Randomization to 12 months
Change in Leicester Cough Questionnaire Score
Leicester Cough Questionnaire score (3 - 21 range). A higher score indicates a better health score. The Leicester Cough Questionnaire measures quality of life in people with a chronic cough.
Time frame: Randomization to 12 months
Change in EuroQol Index (EQ-5D) Score
European Quality of Life-5 dimensions (EQ-5D) score (0 - 1 range). A higher score indicates a better health score. The EQ-5D measures quality of life across 5 dimensions (1. Mobility, 2. Self-care, 3. Usual activities, 4. Pain/discomfort, 5. Anxiety/depression.
Time frame: Randomization to 12 months
Change in ICEpop CAPability Measure for Older People (ICECAP-O) Score
Change in ICEpop (Investigating Choice Experiments for the Preferences of Older People) CAPability measure for Older people (ICECAP-O) score (0 - 1 range). A lower score indicates a better health score. The ICEpop CAPability measure for Older people (ICECAP-O) is intended for use in economic evaluations of care services for older people.
Time frame: Randomization to 12 months
Change in Short Form-12 Health Survey (SF-12) 6D Score
Change in Short Form-12 health survey (SF-12) 6D score (0.29 - 1.00 range). A higher indicates a better health score. The SF-12 6D score provides and economic evaluation.
Time frame: Randomization to 12 months
Change in Short Form-12 Health Survey (SF-12) Physical Score
Change in short form-12 health survey (SF-12) physical component summary (PSC) score (0 - 100 range). A higher score indicates a better health score. The short form-12 health survey physical score assesses limitations in physical activities because of health problems.
Time frame: Randomization to 12 months
Change in SF-12 Health Survey (SF-12) Mental Score
Change in short form-12 health survey (SF-12) mental component summary (MCS) score (0 - 100 range). A higher score indicates a better health score. The short form-12 health survey (SF-12) mental component summary (MCS) assesses general mental health.
Time frame: Randomization to 12 months