A Randomized Phase 2 Study of Cemiplimab ± ISA101b in HPV16-Positive OPC
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|ClinicalTrials.gov Identifier: NCT03669718|
Recruitment Status : Active, not recruiting
First Posted : September 13, 2018
Last Update Posted : February 8, 2023
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|Condition or disease||Intervention/treatment||Phase|
|Squamous Cell Carcinoma of the Oropharynx HPV16 Positive||Biological: ISA101b Drug: Cemiplimab Other: Placebo||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||194 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Triple (Participant, Investigator, Outcomes Assessor)|
|Official Title:||A Randomized, Double-blind, Placebo-Controlled, Phase 2 Study of Cemiplimab Versus the Combination of Cemiplimab With ISA101b in the Treatment of Subjects With HPV16-Positive Oropharyngeal Cancer (OPC)|
|Actual Study Start Date :||November 30, 2018|
|Estimated Primary Completion Date :||September 2023|
|Estimated Study Completion Date :||December 2024|
Experimental: Active ISA101b and cemiplimab.
ISA101b 3 times plus cemiplimab every 3 weeks for up to 24 months
Every 3 weeks for a total of 3 times
Every 3 weeks for up to 24 months
Placebo Comparator: Placebo and cemiplimab
Placebo 3 times plus cemiplimab every 3 weeks for up to 24 months
Every 3 weeks for up to 24 months
Every 3 weeks for a total of 3 times
- Overall Response Rate [ Time Frame: 25months ]Measured using RECIST 1.1
- Number of participants with treatment-related adverse events as assessed by NCI CTCAE v5.0 "Number of participants with treatment-related adverse events as assessed by NCI CTCAE v5.0". [ Time Frame: 25 months ]
- Duration of response (DOR) by independent review in subjects randomized to receive ISA101b plus cemiplimab compared to placebo plus cemiplimab. [ Time Frame: 25months ]
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
|Ages Eligible for Study:||18 Years and older (Adult, Older Adult)|
|Sexes Eligible for Study:||All|
|Accepts Healthy Volunteers:||No|
- Males and females, ≥ 18 years of age.
- Sign and date an Institutional Review Board/Independent Ethics Committee (IRB)/(IEC)-approved written informed consent form (ICF) in accordance with regulatory and institutional guidelines. This must be obtained before the performance of any protocol-related procedures that are not part of normal subject care.
- Be willing and able to comply with scheduled visits, treatment schedule, laboratory testing, and other requirements of the study.
- Diagnosed with histologically confirmed recurrent or metastatic HPV16 positive OPC, whose tumors express PD-L1 (Combined Positive Score [CPS] ≥1) and who are candidates for first line therapy with an PD-1 blocking antibody, AND subjects with recurrent or metastatic HPV16 positive OPC with disease progression on or after platinum containing chemotherapy.
- HPV-16 genotyping will be determined by the specified central reference laboratory.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
- Measurable disease by computed tomography (CT) or magnetic resonance imaging (MRI) per RECIST 1.1 criteria.
- Prior curative radiation therapy must have been completed at least 4 weeks prior to study drug administration. Prior focal palliative radiotherapy must have been completed at least 2 weeks before study drug administration.
- Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin [HCG]) within 24 hours prior to the start of study drug.
- Subjects with previously untreated metastatic or unresectable, recurrent HPV16 positive OPC whose tumors do not express PD-L1 (CPS<1) and who are therefore not candidates for monotherapy with an anti-PD-1 antibody.
- Subjects with known brain metastases or leptomeningeal metastases.
- Any serious or uncontrolled medical disorder that, in the opinion of the investigator, may increase the risk associated with study participation or study drug administration, impair the ability of the subject to receive protocol therapy, or interfere with the interpretation of study results.
- History of other malignancy ≤ 3 years prior to entry into this trial with the exception of basal cell or squamous cell skin carcinoma which were treated with local resection only, or carcinoma in situ of the cervix, prostate or breast, or low grade non-muscle invasive superficial bladder cancer (TaLG)/carcinoma in situ of the bladder.
- Subjects with active, known or suspected autoimmune disease. Subjects with vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll.
- Subjects with a condition requiring immunosuppressive doses of systemic medication such as steroids or absorbed topical steroids (doses ≥ 10 mg/day prednisone or equivalent) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids and adrenal replacement doses < 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
- Prior treatment with an anti-PD-1 antibody (e.g., nivolumab, pembrolizumab, cemiplimab), as well as an antibody targeting anti-PL-L1 anti-PD-L2, anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co stimulation or immune checkpoint pathways.
- Prior treatment with more than one chemotherapy regimen for the management of metastatic OPC.
- Prior treatment with therapeutic anti-HPV vaccines including ISA101 or ISA101b. Subjects may have received a preventive HPV vaccine.
- All toxicities attributed to systemic prior anti-cancer therapy other than alopecia and fatigue must have resolved to Grade 1 (NCI CTCAE) or baseline before administration of study drug. Subjects with toxicities attributed to systemic prior anticancer therapy that are not expected to resolve and result in long lasting sequelae, such as neuropathy after platinum based therapy, are permitted to enroll.
- History of allergy to ISA101/ISA101b study drug components, e.g., ISA101/101b, Montanide, or Macrogolglycerol Ricinoleate, also known as cremophore.
- History of allergy to cemiplimab and its excipients.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03669718
|Principal Investigator:||Bonnie S. Glisson, MD, BS||M.D. Anderson Cancer Center|
|Responsible Party:||ISA Pharmaceuticals|
|Other Study ID Numbers:||
|First Posted:||September 13, 2018 Key Record Dates|
|Last Update Posted:||February 8, 2023|
|Last Verified:||February 2023|
|Studies a U.S. FDA-regulated Drug Product:||Yes|
|Studies a U.S. FDA-regulated Device Product:||No|
Carcinoma, Squamous Cell
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms, Squamous Cell
Antineoplastic Agents, Immunological