About this trial
Study CP-MGD019-03 is an open-label study of lorigerlimab in participants with platinum-resistant ovarian cancer (PROC) or clear cell gynecologic cancer (CCGC). Approximately 80 participants will be enrolled. The study will assess the efficacy and safety of lorigerlimab in participants with PROC or CCGC.
Participants will receive lorigerlimab by intravenous (IV) infusion on Day 1 of every 21-day treatment cycle. Treatment cycles will continue until progression of cancer, unacceptable side effects, withdrawal of consent by the participant, or the study ends.
Participants will be monitored closely for side effects by physical exam and routine laboratory tests every cycle. Tumor status will be checked approximately every 9 weeks for the first year, then every 12 weeks for the duration of treatment. Participants will have a safety followup performed within 30 days after treatment discontinuation. Participants who discontinue study treatment for reasons other than progression of cancer, will continue CA-125 and tumor assessments every 12 weeks. Participants who discontinue study treatment for progression of cancer will enter the 6-month survival follow up portion of the study.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Histologically confirmed high-grade serous epithelial ovarian cancer, including primary peritoneal, or fallopian tube cancer, resistant to platinum based chemotherapy. OR
Histologically confirmed clear cell carcinoma of the ovary (including primary peritoneal and fallopian tube), endometrium, vagina, vulva, or cervix.
Persistent or recurrent disease with documented disease progression.
Participants with PROC must have received at least 1 but not more than 3 prior lines of therapy for PROC.
Disqualifiers
Any underlying medical or psychiatric condition impairing participant's ability to receive, tolerate, or comply with the planned treatment or study procedures.
Primary platinum-refractory disease, defined as disease that did not respond to (CR or PR) or has progressed within 3 months of the last dose of first-line platinum- containing chemotherapy.
Prior treatment with a checkpoint inhibitor (e.g., anti-PD-1/PD-L1, anti-PD-L2, anti-CTLA-4). Prior use of immune checkpoint inhibitors (e.g., anti-PD-1, anti-PD-L1, anti-CTLA-4) is allowed for clear cell endometrial and clear cell cervical cancer.
Active brain metastases or leptomeningeal metastases.
Trial design
Parallel
Treatments tested in this trial
Lorigerlimab
Biological/VaccineBispecific DART protein binding PD-1 and CTLA-4
Treatment groups
Trial outcomes
Primary outcomes
Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria as determined by the investigator
The ORR, is defined as the percentage of patients in the response evaluable population who achieve a best overall response of complete response (CR) or partial response (PR), per RECIST, version 1.1 criteria. CR is defined as disappearance of all target and non-target lesions. PR is defined as at least a 30% decrease from baseline in the sum of diameters of target lesions.
Secondary outcomes
Frequency and severity of adverse events (AEs), serious AEs (SAEs), immune-related AEs (irAEs), and AEs leading to dose modifications or treatment discontinuation.
Median duration of response (DoR) per RECIST 1.1 criteria
The DoR will be calculated per RECIST v1.1 criteria, as determined by the investigator, from the date of initial tumor response (CR or PR) to the date of first documented progressive disease (PD) or death from any cause, whichever occurs first.
Median progression free survival (PFS) per RECIST 1.1 criteria
PFS is defined as the time from the first dose of study treatment to the date of documented PD or death from any cause, whichever occurs first.
Percent change from baseline in tumor size
Tumor size is defined as the sum of diameters of the target lesions.
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