CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 6 enrolled
Drug / intervention
CyPep-1 +1 moredrug
Likely dose
Pembrolizumab 25 MG/ML [KEYTRUDA®]from 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/NCT05383170
NCT05383170Phase 2Completed

A Phase 1b/2a, Open-Label, Multi-Center Study of CyPep-1 in Combination With Pembrolizumab to Evaluate the Efficacy and Safety of CyPep-1 in Patients With Advanced or Metastatic Head and Neck Squamous Cell Carcinoma (HNSCC), Melanoma, or Triple-Negative Breast Cancer (TNBC) (CATALYST)

Cytovation AS·interventional·Posted May 20, 2022·Updated Nov 28, 2025

In Brief

A Phase 2 clinical trial evaluating CyPep-1 and Pembrolizumab 25 MG/ML [KEYTRUDA®] for Advanced Head and Neck Squamous Cell Carcinoma and 2 related conditions. Completed, enrolled 6 participants across 25 sites in 5 countries.

Detailed Summary

This Phase 1b/2a study will assess the efficacy, safety, and pharmacodynamics of CyPep-1 when administered directly into measurable tumor lesions in combination with the anti-PD-1 antibody pembrolizumab. Additionally, the study will assess anti-tumor effects of CyPep-1 on injected lesions and non-injected target lesions identified at baseline, as well as local and systemic immunological effects of CyPep-1 in combination with pembrolizumab.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesFrance, Italy, Netherlands, Spain, United States

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedMay 20, 2022
Enrollment StartMar 21, 2023
Primary CompletionSep 23, 2024
TodayJul 2, 2026
Enrollment to primary: 1.5 yearsPosted 4.1 years ago

Interventions

CyPep-1drug

Intratumoral injection

Pembrolizumab 25 MG/ML [KEYTRUDA®]drug

IV infusion