Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03284424 · ClinicalTrials.gov registry record · Phase 2
Study of Pembrolizumab (MK-3475) in Adults With Recurrent/Metastatic Cutaneous Squamous Cell Carcinoma (cSCC) or Locally Advanced Unresectable cSCC (MK-3475-629/KEYNOTE-629)
A Phase 2 study, sponsored by Merck Sharp & Dohme.
- Completed
- Registry status
- Phase 2
- Development phase
- 159
- Enrollment target
NCT03284424: Completed Phase 2 study, sponsored by Merck Sharp & Dohme.
NCT03284424 is a Phase 2 study that has completed, run by Merck Sharp & Dohme. The registered enrollment target is 159 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (20% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03284424, a Phase 2 study, has completed, sponsored by Merck Sharp & Dohme.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 159 participants
- Enrollment target
Study Summary
The purpose of this study is to evaluate the safety and efficacy of pembrolizumab (MK-3475) in adult participants with recurrent or metastatic(R/M) cutaneous Squamous Cell Carcinoma (cSCC) or locally advanced (LA) unresectable cSCC that is not amenable to surgery and/or radiation and/or systemic therapies.
Primary Outcome
ORR was defined as the percentage of participants who have best response of Complete Response (CR: Disappearance of all target lesions) or Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1). ORR per RECIST 1.1 as assessed by blinded independent central review (BICR) is presented.
Interventions
- BIOLOGICAL Pembrolizumab
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 159 participants |
| Start Date | 2017-10-26 |
| Est. Completion | 2023-09-13 |
| Phase | Phase 2 |
What the finished NCT03284424 record still lists
NCT03284424 is an interventional study that assigns participants to a tested intervention. The registered 159 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (20% higher).
The record links to 0 conditions, and to 1 intervention - of which Pembrolizumab is the first listed.
NCT03284424 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03284424 about?
NCT03284424 is a clinical study titled "Study of Pembrolizumab (MK-3475) in Adults With Recurrent/Metastatic Cutaneous Squamous Cell Carcinoma (cSCC) or Locally Advanced Unresectable cSCC (MK-3475-629/KEYNOTE-629)". The purpose of this study is to evaluate the safety and efficacy of pembrolizumab (MK-3475) in adult participants with recurrent or metastatic(R/M) cutaneous Squamous Cell Carcinoma (cSCC) or locally advanced (LA) unresectable cSCC that is not amenable to surgery and/or radiation and/or systemic the...
What is the current status of trial NCT03284424?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 159 participants. The study started on 2017-10-26. Estimated completion is 2023-09-13.
What interventions are being tested in trial NCT03284424?
The interventions under investigation include: Pembrolizumab (BIOLOGICAL).
Who is sponsoring clinical trial NCT03284424?
This trial is sponsored by Merck Sharp & Dohme, which has 558 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03284424's enrollment target sits among peer trials
159 442nd of 2000 higher than 1,558 of 2,000 other Phase 2 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT05267626 · 159 participants · Phase 1
Study of AU-007, A Monoclonal Antibody That Binds to IL-2 and Inhibits IL-2Rα Binding, in Patients With Unresectable Locally Advanced or Metastatic Cancer
- NCT06321575 · 159 participants · NA
The Golazo® Peripheral Atherectomy System for a Safe and Effective Atherectomy (GREAT Trial)
- NCT06729151 · 159 participants
Effect of Intradetrusor onabotulinumtoxinA Injection Versus Conservative Management on Female Sexual Function in Patients With Bladder Pain Syndrome
- NCT07023731 · 159 participants · Phase 1
A Study to Evaluate ARV-806 in Adults With Advanced Cancer That Has the KRAS G12D Mutation
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI