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Clinical trialNCT02544880CompletedPhase 1Interventional

PDE5 Inhibition Via Tadalafil to Enhance Anti-Tumor Mucin 1 (MUC1) Vaccine Efficacy in Patients With HNSCC

SponsorDonald T. Weed, MD, FACSEnrollment16Head and Neck CancerHead and Neck Squamous Cell Carcinoma
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The investigators hypothesize that Tadalafil treatment, by lowering Myeloid Derived Suppressor Cells (MDSCs) and regulatory T cells (Tregs), can prime an antitumor immune response and promote a permissive environment that should increase the efficacy of anti-tumor vaccine in a setting of minimal residual disease.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • University of Miami

    Miami, Florida, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Anti-Influenza VaccineAnti-MUC1 VaccineTadalafil
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
25 Apr 2016
Primary completion
2 Jun 2019
Completion
8 Jun 2021
Last update posted
15 Jun 2021
Registered enrollment
16
Registry id
NCT02544880
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.