- Conditions
- Chronic Cough
- Interventions
- Gefapixant, Placebo
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 376 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 19
- States / cities
- Paramount, California • Jupiter, Florida • Miami, Florida + 16 more
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–13
of 13
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Refractory Chronic Cough
- Interventions
- Gefapixant, Placebo (for gefapixant)
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2016
- U.S. locations
- 10
- States / cities
- Mission Viejo, California • San Jose, California • Colorado Springs, Colorado + 7 more
- Conditions
- Endometriosis-related Pain
- Interventions
- Gefapixant, Placebo, Naproxen
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years to 49 Years · Female only
- Enrollment
- 187 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 30
- States / cities
- Birmingham, Alabama • Chandler, Arizona • Scottsdale, Arizona + 25 more
- Conditions
- Renal Insufficiency
- Interventions
- Gefapixant
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017
- U.S. locations
- 2
- States / cities
- Hialeah, Florida • Orlando, Florida
- Conditions
- Chronic Cough
- Interventions
- Gefapixant, Placebo
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 419 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 15
- States / cities
- Phoenix, Arizona • Paramount, California • Springfield, Illinois + 12 more
- Conditions
- Obstructive Sleep Apnea (OSA)
- Interventions
- Gefapixant, Placebo
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019
- U.S. locations
- 4
- States / cities
- Hallandale, Florida • Hollywood, Florida • Atlanta, Georgia + 1 more
- Conditions
- Chronic Cough
- Interventions
- Placebo, Gefapixant
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 732 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 27
- States / cities
- Litchfield Park, Arizona • Scottsdale, Arizona • La Mesa, California + 23 more
- Conditions
- Osteoarthritis of the Knee
- Interventions
- Gefapixant, Sugar Pill
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 40 Years to 80 Years
- Enrollment
- 171 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 34
- States / cities
- Phoenix, Arizona • San Diego, California • Clearwater, Florida + 29 more
- Conditions
- Idiopathic Pulmonary Fibrosis
- Interventions
- Gefapixant
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015
- U.S. locations
- 1
- States / cities
- Charlotte, North Carolina
- Conditions
- Healthy
- Interventions
- Omeprazole, Gefapixant
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015
- U.S. locations
- 1
- States / cities
- Tempe, Arizona
- Conditions
- Healthy
- Interventions
- Omeprazole, Gefapixant
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 32 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016
- U.S. locations
- 1
- States / cities
- Tempe, Arizona
- Conditions
- Bladder Pain Syndrome
- Interventions
- Gefapixant, Placebo
- Drug
- Lead sponsor
- Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
- Industry
- Eligibility
- 18 Years to 80 Years · Female only
- Enrollment
- 107 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 41
- States / cities
- Glendale, Alabama • Homewood, Alabama • Mobile, Alabama + 37 more
- Conditions
- Chronic Cough
- Interventions
- Placebo, Gefapixant 15 mg BID, Gefapixant 45 mg BID
- Drug
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 1,317 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 34
- States / cities
- Peoria, Arizona • Phoenix, Arizona • Tempe, Arizona + 31 more