CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 7 enrolled
Drug / intervention
Pembrolizumab +1 moredrug
Likely dose
Pembrolizumab 200 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03993353
NCT03993353Phase 2Completed

A Phase II Study of Tadalafil and Pembrolizumab in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma

University of California, San Diego·interventional·Posted Jun 20, 2019·Updated Feb 12, 2026

In Brief

A Phase 2 clinical trial evaluating Pembrolizumab and Tadalafil for Head and Neck Cancer and 11 related conditions. Completed, enrolled 7 participants across 1 site.

Detailed Summary

This study will examine the combination of pembrolizumab and tadalafil for safety and efficacy in advanced head and neck cancer.

Study Details

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedJun 20, 2019
Enrollment StartApr 7, 2020
Primary CompletionApr 16, 2022
Study CompletionJan 9, 2024
TodayJul 2, 2026
Enrollment to primary: 2.0 yearsPosted 7.0 years ago

Interventions

Pembrolizumabdrug

200 mg intravenously every 3 weeks

Tadalafildrug

10 mg by mouth daily