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OpenTrials
Completed

NCT Number: NCT04646005

Cemiplimab and ISA101b Vaccine in Adult Participants With Recurrent/Metastatic Human Papillomavirus (HPV)16 Cervical Cancer Who Have Experienced Disease Progression After First Line Chemotherapy

The primary objective of the study is to estimate the clinical benefit of cemiplimab + ISA101b after progression on first line chemotherapy, as assessed by objective response rate (ORR).

The secondary objectives of the study are:

* To characterize the safety profile of cemiplimab + ISA101b * To assess preliminary efficacy of cemiplimab + ISA101b as measured by duration of response (DOR), progression-free survival (PFS), and overall survival (OS)

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

  • Adult patients ≥18 years of age (or the legal age of adults to consent to participate in a clinical study per country specific regulations).
  • Has histologically confirmed recurrent or metastatic HPV16 positive cervical cancer as determined by an investigational HPV16 PCR assay, who have experienced disease progression after treatment with platinum containing therapy as defined in the protocol
  • Patient must be determined to be positive for HPV16 genotype, as determined by a specified central reference laboratory.
  • Patient must have measurable disease as defined by RECIST 1.1.
  • Must have received prior bevacizumab and taxol unless meets pre-specified protocol criteria
  • ECOG performance status of 0 or 1.
  • Has adequate organ and bone marrow function as defined in the protocol.
  • Anticipated life expectancy ≥20 weeks.

Key Exclusion Criteria:

  • Prior treatment with an agent that blocks the PD-1/PD-L1 pathway.
  • Prior treatment with other systemic immune-modulating agents as defined in the protocol
  • Major surgery or radiation therapy within 14 days of first administration of study drug
  • Has received treatment with an approved systemic therapy within 4 weeks of first dose of study drug, or has not yet recovered (ie, grade ≤1 or baseline) from any acute toxicities except for laboratory changes as described in the protocol
  • Has another malignancy that is progressing or requires active treatment and/or history of malignancy other than cervical cancer within 3 years of date of first planned dose of study drug as defined in the protocol
  • Has any condition that requires ongoing/continuous corticosteroid therapy (>10 mg prednisone/day or anti-inflammatory equivalent) within 4 weeks prior to the first dose of study drug. 7. Has ongoing or recent (within 5 years) evidence of significant autoimmune disease that required treatment with systemic immunosuppressive treatments as defined in the protocol

NOTE: Other protocol-defined Inclusion/ Exclusion criteria apply

Treatment and study plan

cemiplimab

Drug

Administered intravenously (IV) every three weeks (Q3W)

Other names: REGN2810, Libtayo

ISA101b

Biological

Administered by subcutaneous (SC) injection on day 1, day 29, and day 50

Primary outcomes

  1. Objective Response Rate (ORR)

    Time frame: From enrollment to last dose (~up to 23 months)

    Objective response rate (ORR) is determined by the proportion of participants with best overall response of complete response (CR) or partial response (PR) in the Full analysis set (FAS).

Secondary outcomes

  1. Number of Treatment Emergent Adverse Events (TEAEs)

    Time frame: From enrollment to last dose (~up to 23 months)

    Treatment-emergent AEs (TEAEs) are defined as AEs that developed or worsened during the on-treatment period and treatment-related AEs that occur during post-treatment period.

  2. Number of Participants With Any Treatment Emergent Adverse Events (TEAEs)

    Time frame: From enrollment to last dose (~up to 23 months)

  3. Number of Participants With Any Treatment Emergent Adverse Events of Special Interest (TE AESIs)

    Time frame: From enrollment to last dose (~up to 23 months)

  4. Number of Participants With Any Serious TEAE

    Time frame: From enrollment to last dose (~up to 23 months)

  5. Number of Participants With at Least One Lab Abnormality

    Time frame: From enrollment to last dose (~up to 23 months)

  6. Number of Participants With at Least One Lab Abnormality With Severity of ≥ Grade 3

    Time frame: From enrollment to last dose (~up to 23 months)

    Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care activities of daily living Grade 4 Life-threatening consequences; urgent intervention indicated. Grade 5 Death related to AE.

  7. Duration of Response (DOR)

    Time frame: From enrollment to last dose (~up to 23 months)

  8. Progression Free Survival (PFS)

    Time frame: From enrollment to last dose (~up to 23 months)

  9. Overall Survival (OS)

    Time frame: From enrollment to last dose (~up to 23 months)

Sponsors and collaborators

Lead sponsor

Regeneron Pharmaceuticals

Industry

Collaborators

  • ISA Pharmaceuticals B.V.

Registry information

Official study title

A Phase 2 Study of Cemiplimab, an Anti-PD-1 Monoclonal Antibody, and ISA101b Vaccine in Patients With Recurrent/Metastatic HPV16 Cervical Cancer Who Have Experienced Disease Progression After First Line Chemotherapy

Important dates

Study start
2021
Primary completion
2023
Study completion
2024
First posted
Nov 27, 2020
Registry last updated
Sep 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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