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Terminated Phase 2 Interventional Results available

A Dose Escalation Study of BLU-5937 in Unexplained or Refractory Chronic Cough

ClinicalTrials.gov ID: NCT03979638

Public ClinicalTrials.gov record NCT03979638. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 31, 2026, 6:30 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Double-Blind, Placebo-Controlled, Crossover, Dose Escalation Study of BLU-5937 in Subjects With Unexplained or Refractory Chronic Cough (RELIEF)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a multi-center, randomized, double-blind, placebo-controlled, crossover, dose escalation study of BLU-5937 in subjects with unexplained or refractory chronic cough

Study identification

NCT ID
NCT03979638
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Enrollment
68 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 80 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 10, 2019 (Actual)
Primary completion
Apr 23, 2020 (Actual)
Completion
Apr 23, 2020 (Actual)
Last update posted
Aug 3, 2021

2019 – 2020

United States locations

U.S. sites
8
U.S. states
7
U.S. cities
8
Facility City State ZIP Site status
Allergy Associates Medical Group Inc. San Diego California 92108 —
Allergy & Asthma Associates of Santa Clara Valley San Jose California 95117 —
Centre for Cough Largo Florida 33778 —
Clinical Research Institute Minneapolis Minnesota 55402 —
Clinical Research of Gastonia Gastonia North Carolina 20854 —
National Allergy & Asthma Research Charleston South Carolina 29420 —
Diagnostics Research Group San Antonio Texas 78229 —
Allergy Asthma & Sinus Center Greenfield Wisconsin 53228 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 8 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03979638, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 3, 2021 · Synced Oct 31, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03979638 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →