🏛️ Verified NIH Record • Updated 2026-06-25

Neoadjuvant Study of PD-1 Inhibitor Pembrolizumab in PD-1 Naive Cutaneous Squamous Cell Carcinoma (cSCC) (NCT04808999)

🔵 Active, Not Recruiting Phase2 💊 Investigational Drug / Biologic Sponsor: Diwakar Davar

🩺 Plain-English Summary (8th-Grade Level)

This phase II single-arm two-stage neoadjuvant study of pembrolizumab in patients with PD-1 naïve high-risk resectable cutaneous squamous cell carcinoma (cSCC) will be conducted over a 52-week period. The study will include patients who have not undergone surgery to remove disease, to formally evaluate whether both biologically and clinically high-risk disease may benefit from neoadjuvant anti-PD-1 therapy. Response to neoadjuvant anti-PD-1 therapy will be evaluated for association with improved landmark Relapse-free Survival (RFS).

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (13 items) and avoid the listed exclusions (25 items).

Location: UPMC Hillman Cancer Center — Pittsburgh, Pennsylvania

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

Usually NOT eligible if any of the following apply:

  • Exclusion Criteria:
  • Diagnosis of immunodeficiency, immunosuppression and/or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment.
  • Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti PD L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, CTLA-4, OX 40, CD137).
  • Prior chemotherapy, targeted small molecule therapy within 2 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at baseline) from adverse events due to a previously administered agent.
  • Has received prior radiotherapy within 2 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 2-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-CNS disease.
  • Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention.
  • A WOCBP who has a positive urine pregnancy test at Screening. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
  • Has received a live vaccine within 30 days prior to the first dose of study drug.
  • Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine.
  • Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist®) are live attenuated vaccines and are not allowed.
  • Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 14 days prior to the first dose of study drug.
  • Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs).

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (1 Sites)

  • UPMC Hillman Cancer Center — Pittsburgh, Pennsylvania

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
🏛️ View Official NIH Record ↗