Vitamin A Status in Patients With Vocal Fold Leukoplakia
Sponsor: National Institute on Deafness and Other Communication Disorders (NIDCD)
Listed as NCT05323292, this observational or N/A phase trial focuses on Leukoplakia and Vitamin A and remains ongoing. Sponsored by National Institute on Deafness and Other Communication Disorders (NIDCD), it has been updated 11 times since 2022, reflecting substantial change activity. This study contributes to the evolving evidence base for cancer treatment protocols.
Status Flow
Change History
11 versions recorded-
Jan 2026 — Present [monthly]
Enrolling By Invitation
-
Jun 2025 — Jan 2026 [monthly]
Enrolling By Invitation
-
Sep 2024 — Jun 2025 [monthly]
Enrolling By Invitation
-
Aug 2024 — Sep 2024 [monthly]
Enrolling By Invitation
-
Jul 2024 — Aug 2024 [monthly]
Enrolling By Invitation
▶ Show 6 earlier versions
-
Jun 2024 — Jul 2024 [monthly]
Enrolling By Invitation
-
Jul 2023 — Jun 2024 [monthly]
Enrolling By Invitation
-
Sep 2022 — Jul 2023 [monthly]
Enrolling By Invitation
-
Jul 2022 — Sep 2022 [monthly]
Enrolling By Invitation
-
Jun 2022 — Jul 2022 [monthly]
Enrolling By Invitation
Status: Not Yet Recruiting → Enrolling By Invitation
-
May 2022 — Jun 2022 [monthly]
Not Yet Recruiting
First recorded
Eligibility Summary
No eligibility information available.
Contact Information
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- University of Wisconsin, Madison
For direct contact, visit the study record on ClinicalTrials.gov .