NCT05574101

Brief Summary

The purpose of the study is to see if the combination of radiation therapy and cemiplimab immunotherapy is an effective treatment for people with locally advanced, unresectable CSCC.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for phase_2

Timeline
5mo left

Started Oct 2022

Typical duration for phase_2

Geographic Reach
1 country

13 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress90%
Oct 2022Oct 2026

First Submitted

Initial submission to the registry

October 6, 2022

Completed
Same day until next milestone

Study Start

First participant enrolled

October 6, 2022

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 10, 2022

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 6, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 6, 2026

Last Updated

August 8, 2025

Status Verified

August 1, 2025

Enrollment Period

4 years

First QC Date

October 6, 2022

Last Update Submit

August 7, 2025

Conditions

Keywords

Skin cancersquamous cell carcinomalocally advanced squamous cell carcinomaCutaneous Squamous Cell CarcinomaLocally Advanced Squamous Cell Carcinoma of the SkinLocally Advanced Cutaneous Squamous Cell CarcinomaLocally Advanced Skin Squamous Cell CarcinomacemiplimabRAMPART22-090Memorial Sloan Kettering Cancer Center

Outcome Measures

Primary Outcomes (1)

  • Disease Free Survival

    The primary endpoint for this study is disease free survival at 18 months (week 78 +/- 3 weeks) after starting cemiplimab.

    18 months

Study Arms (1)

Participants with locally advanced, unresectable cutaneous squamous cell carcinoma/CSCC

EXPERIMENTAL

Participants have locally advanced, unresectable cutaneous squamous cell carcinoma/CSCC

Drug: CemiplimabRadiation: Radiotherapy

Interventions

Participants will undergo baseline imaging, followed by two doses of neoadjuvant cemiplimab at a dose of 350 mg intravenously over 30 minutes every 3 weeks (+/-3 days). Then, participants will receive concurrent cemiplimab 350 mg intravenously over 30 minutes every 3 weeks (+/-3 days) concurrently with RT to 70 Gy in 35 fractions over 7 weeks. Thereafter, participants will receive 38 weeks of cemiplimab 350 mg intravenously over 30 minutes every 3 weeks (+/-3 days) for a cumulative total of 12 months of cemiplimab.

Participants with locally advanced, unresectable cutaneous squamous cell carcinoma/CSCC
RadiotherapyRADIATION

Participants will receive radiotherapy to 70 Gy in 35 fractions over 7 weeks concurrently with cemiplimab

Participants with locally advanced, unresectable cutaneous squamous cell carcinoma/CSCC

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Biopsy proven cutaneous squamous cell carcinoma which is locally advanced
  • Mixed histology tumors that are predominantly squamous cell carcinoma are eligible
  • Locally advanced primary tumor is T3-T4 and/or N+ by AJCC and/or UICC 8th edition clinical criteria
  • T3-T4 primary tumor characteristics noted below:
  • Non-eyelid tumor \>4 cm in maximum dimension or with bone erosion or invasion, perineural invasion of nerve 0.1 mm or larger, or invasion beyond subcutaneous fat or \>6 mm from granular layer of adjacent normal epidermis
  • Eyelid tumor \>2 cm or invading adjacent ocular, orbital or facial structures
  • ≥18 years old
  • Unresectable or medically inoperable according to local multidisciplinary consensus for reasons such as:
  • Tumor or regional lymph node metastases that has recurred despite ≥2 prior surgical procedures, with another curative resection unlikely
  • Tumor or nodal disease with significant local invasion that precludes complete resection
  • Tumor or nodal disease in anatomically challenging area where surgery may result in significant disfigurement or dysfunction (amputation of nose, ear, eye, digit, limb, etc)
  • Medical contraindication to surgery
  • Patient refusal of surgery due to anticipate morbidity
  • ECOG ≤2
  • Adequate bone marrow and metabolic function (by blood tests)
  • +11 more criteria

You may not qualify if:

  • Primary tumor originating on the mucosal (non-hair bearing) lip or nose, anogenital (penis, scrotum, vulva, perianal) area
  • Iatrogenic immunosuppression (\>prednisone 10 mg/day or equivalent within 14 days of initiation of treatment)
  • Women of child bearing potential unwilling or unable to use effective contraception while receiving treatment with cemiplimab and for 4 months thereafter
  • Distant metastases
  • Clinically significant autoimmune disease that requires iatrogenic immunosuppression
  • o For example, severe rheumatoid arthritis requiring disease modifying antirheumatic drugs, such as methotrexate
  • Current or previous hematopoietic malignancy (leukemia, lymphoma)
  • Prior allogeneic transplant of solid organ or bone marrow
  • Concurrent malignancies with \>10% risk of metastasis or death within 2 years
  • Prior aPD1 immunotherapy or PI3Kδ inhibitor use
  • Prior radiotherapy for the cutaneous squamous cell carcinoma requiring treatment
  • Other ongoing cancer therapy
  • o Adjuvant endocrine therapy is permitted for patients with prostate or breast cancer
  • Uncontrolled HIV or infectious hepatitis (viral load detectable in patient with known infection)
  • Pregnancy or breastfeeding
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (13)

University of Colorado (Data Collection Only)

Aurora, Colorado, 80045, United States

Location

Moffitt Cancer Center (Data Collection Only)

Tampa, Florida, 33612, United States

Location

Memorial Sloan Kettering Cancer Center at Basking Ridge (All Protocol Activities)

Basking Ridge, New Jersey, 07920, United States

Location

Memorial Sloan Kettering Monmouth (All Protocol Activities)

Middletown, New Jersey, 07748, United States

Location

Memorial Sloan Kettering Bergen (All protocol activities)

Montvale, New Jersey, 07645, United States

Location

Memorial Sloan Kettering Suffolk-Commack (All Protocol Activities)

Commack, New York, 11725, United States

Location

Memorial Sloan Kettering Westchester (All Protocol Activities)

Harrison, New York, 10604, United States

Location

Memorial Sloan Kettering Cancer Center (All Protocol Activities)

New York, New York, 10065, United States

Location

Memorial Sloan Kettering Nassau (All protocol activities)

Rockville Centre, New York, 11553, United States

Location

Cleveland Clinic (Data Collection Only)

Cleveland, Ohio, 44195, United States

Location

Fox Chase Cancer Center (Data Collection Only)

Philadelphia, Pennsylvania, 19111, United States

Location

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

University of Washington (Data Collection Only)

Seattle, Washington, 98109, United States

Location

Related Links

MeSH Terms

Conditions

Skin NeoplasmsCarcinoma, Squamous Cell

Interventions

cemiplimabRadiotherapy

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsSkin DiseasesSkin and Connective Tissue DiseasesCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasms, Squamous Cell

Intervention Hierarchy (Ancestors)

Therapeutics

Study Officials

  • Christopher Barker, MD

    Memorial Sloan Kettering Cancer Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 6, 2022

First Posted

October 10, 2022

Study Start

October 6, 2022

Primary Completion (Estimated)

October 6, 2026

Study Completion (Estimated)

October 6, 2026

Last Updated

August 8, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Locations