Pilot of Zinc Acetate to Improve Chronic Cough
Public ClinicalTrials.gov record NCT03135522. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT03135522
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Johns Hopkins University
- Other
- Enrollment
- 34 participants
Conditions and interventions
Conditions
Interventions
- Zinc Acetate 50 Mg Oral Capsule Drug
- Placebo oral capsule Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- Feb 13, 2018
- Primary completion
- Dec 10, 2019
- Completion
- Dec 10, 2019
- Last update posted
- Jan 19, 2021
2018 – 2019
United States locations
- U.S. sites
- 5
- U.S. states
- 5
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Jewish Medical and Research Center | Denver | Colorado | 80206 | — |
| St. Vincent Health | Indianapolis | Indiana | 46260 | — |
| Washington University School of Medicine | St Louis | Missouri | 63110 | — |
| Mount Sinai School of Medicine | New York | New York | 10029 | — |
| Duke University Medical Center | Durham | North Carolina | 27710 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03135522, 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 Jan 19, 2021 · Synced Jun 27, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03135522 live on ClinicalTrials.gov.