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Clinical Trial Summary

The primary objectives of this study are to evaluate the efficacy of gefapixant (MK-7264) in reducing cough frequency as measured over a 24-hour period, and to determine the safety and tolerability of gefapixant. The primary hypothesis is that at least one dose of gefapixant is superior to placebo in reducing coughs per hour (over 24 hours) at Week 24.


Clinical Trial Description

This study will have a main 24-week treatment period and a 28-week extension period of treatment (total treatment period of 52 weeks). Participants at selected sites and countries who complete the main and extension study periods may consent to participate in an observational, 12-week, Off-treatment Durability Study Period. Any assessments conducted in the observational period will be exploratory. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03449147
Study type Interventional
Source Merck Sharp & Dohme Corp.
Contact
Status Completed
Phase Phase 3
Start date March 15, 2018
Completion date October 30, 2020

See also
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