A Trial to Investigate Recovery From COVID-19 With C21 in Adult Subjects
Public ClinicalTrials.gov record NCT04880642. 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.
Official title
A Randomized, Double-blind, Placebo-controlled, Parallel-group, Phase 3, Multicenter Trial Investigating the Efficacy and Safety of C21 as add-on to Standard of Care in Adult Subjects With COVID-19
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This trial is a randomized, double-blind, placebo-controlled, parallel-group, 2-arm, multicenter trial to evaluate the efficacy and safety of C21 versus placebo as add-on to standard of care (SoC) in adult subjects with COVID-19. The trial planned to enroll a total of maximum 300 randomized subjects, 150 per arm (oral C21 100 mg twice a day (BID) or placebo for 14 days) according to the 1:1 randomization.
Study identification
- NCT ID
- NCT04880642
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 272 participants
Conditions and interventions
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
- Sep 15, 2021
- Primary completion
- Apr 24, 2022
- Completion
- Apr 24, 2022
- Last update posted
- Dec 13, 2023
2021 – 2022
United States locations
- U.S. sites
- 6
- U.S. states
- 6
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of California Irvine Medical Center | Orange | California | 92868 | — |
| Northwestern Medicine Central DuPage Hospital | Winfield | Illinois | 60190 | — |
| Parkview Physicians Group - Infectious Diseases | Fort Wayne | Indiana | 46805 | — |
| Trinity Health | Minot | North Dakota | 58701 | — |
| Lehigh Valley Hospital - 17th Street | Allentown | Pennsylvania | 18102 | — |
| Carilion Roanoke Memorial Hospital | Roanoke | Virginia | 24014 | — |
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 54 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04880642, 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 Dec 13, 2023 · Synced Sep 24, 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 NCT04880642 live on ClinicalTrials.gov.