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Gefapixant twice daily

Phase 3

Chronic Cough | Small molecule | Respiratory |Merck & Company, Inc.|Last Updated: Jan 12, 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment161

FDA Designations

No designations recorded

Clinical trial landscape

Gefapixant twice daily · 1 trial · 1 indication

Phase 3 1
NCT04525885A Study of Gefapixant (MK-7264) in Adult Participants With Chronic Cough (MK-7264-030)-China ExtensionChronic Cough
COMPLETED161 Analytics
PHASE3COMPLETED
A Study of Gefapixant (MK-7264) in Adult Participants With Chronic Cough (MK-7264-030)-China Extension
Chronic CoughUnlock trial analytics

Study Endpoints

Primary Endpoints

Model-Based Geometric Mean Ratio (GMR) of 24-Hour Coughs Per Hour at Week 24
Baseline, Week 24

24-hour coughs per hour was defined as the average hourly cough frequency based on 24-hour sound recordings using a digital recording device (cough monitor). A longitudinal analysis of covariance (ANCOVA) model was applied to log-transformed cough data to determine geometric mean (GM) 24-hour coughs per hour at baseline and week 24. The GMR (Week 24 GM 24-hour coughs per hour divided by Baseline GM 24-hour coughs per hour) is reported.

Percentage of Participants Who Experienced At Least One Adverse Event (AE) During Treatment and Follow-up
Up to 54 weeks

Assessment of participants who have at least one AE during the main study period (24 weeks), the treatment extension period (28 weeks), and during 2 weeks of follow-up by telephone.

Percentage of Participants Who Discontinued Treatment Due to an AE
Up 52 weeks

Assessment of participants who stop study treatment due to an AE during the main study period (24 weeks) or the treatment extension period (28 weeks).

Secondary Endpoints

Model-Based GMR of Awake Coughs Per Hour at Week 24/Baseline
Baseline, Week 24
Percentage of Participants With a ≥1.3-point Increase From Baseline in the Leicester Questionnaire (LCQ) Total Score at Week 24
Baseline, Week 24
Percentage of Participants With a ≥30% Reduction From Baseline in 24-hour Coughs Per Hour at Week 24
Baseline, Week 24
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Gefapixant 45 mg BIDEXPERIMENTALParticipants will receive a gefapixant 45 mg tablet BID during the main study period (24 weeks) and also during the extension period (28 weeks).
Gefapixant 15 mg BIDEXPERIMENTALParticipants will receive a gefapixant 15 mg tablet BID during the main study period (24 weeks) and also during the extension period (28 weeks).
PlaceboPLACEBO_COMPARATORParticipants will receive a matching placebo tablet BID during the 24-week main study period and during the 28-week extension period.

Interventions

NameTypeDescription
Gefapixant 45 mg twice daily (BID)DRUGGefapixant 45 mg tablet to be administered orally BID
Gefapixant 15 mg BIDDRUGGefapixant 15 mg tablet to be administered orally BID
PlaceboDRUGPlacebo tablet administered orally BID
Gefapixant 45 mg BIDDRUGGefapixant 45 mg tablet to be administered orally BID
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites8

Inclusion Criteria: * Chest radiograph or computed tomography scan of the thorax (within 5 years of Screening/Visit 1 and after the onset of chronic cough) not demonstrating any abnormality considered to be significantly contributing to the chronic cough or any other clinically significant lung dis...

Countries:China
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Frequently asked questions about Gefapixant twice daily

What is Gefapixant twice daily used for?

Gefapixant twice daily is an investigational small molecule being studied for the treatment of chronic cough in adults. It is being developed by Merck & Company, Inc. (MRK) and is currently in Phase 3 clinical development. The drug is not approved and remains under investigation.

Who makes Gefapixant twice daily?

Gefapixant twice daily is being developed by Merck & Company, Inc., which trades under the ticker MRK. The company is conducting clinical trials to evaluate the drug as a treatment for chronic cough in adult patients.

What phase is Gefapixant twice daily in?

Gefapixant twice daily is in Phase 3 clinical development. It is an investigational drug being studied for chronic cough and has not been approved by regulatory authorities. A Phase 3 trial has been completed as part of its clinical program.

What clinical trials is Gefapixant twice daily in?

Gefapixant twice daily has one completed Phase 3 clinical trial, NCT04525885, titled "A Study of Gefapixant (MK-7264) in Adult Participants With Chronic Cough (MK-7264-030)-China Extension." The trial enrolled 161 participants in China and was a randomized, double-blind, placebo-controlled study.

Is Gefapixant twice daily the same as MK-7264?

Yes, Gefapixant twice daily is also known as MK-7264. The clinical trial NCT04525885 refers to the drug as MK-7264, and it is being studied for the treatment of chronic cough in adults.