About this trial
This study is testing a drug called enfortumab vedotin in up to 12 patients with advanced endometrial (uterine) cancer that has worsened after previous treatments, including immunotherapy. The goal is to see how well the drug works and how safe it is. Patients will be treated for up to one year and followed over time to monitor their health and response to the treatment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Female patient of age ≥18 years.
Endometrioid endometrial carcinoma
Serous endometrial carcinoma
Prior standard of care of surgical intervention, including hysterectomy.
Disqualifiers
Diagnosis of endometrial sarcoma (leiomyosarcoma, endometrial stromal sarcoma, high-grade sarcoma).
Diagnosis of non-endometrioid and non-serous endometrial cancer. Mixed tumors involving histologic types other than serous and endometrioid will not be eligible.
Tumor sample does not express nectin-4 (local IHC testing).
Symptomatic CNS metastases or leptomeningeal metastases. Patients with symptomatic brain metastasis must be treated and must be stable for at least 4 weeks prior to study treatment.
Trial design
Single group
Treatments tested in this trial
Enfortumab Vedotin
DrugEnfortumab vedotin is an ADC comprised of a fully human IgG1Κ antibody conjugated to the microtubule-disrupting agent MMAE via a protease-cleavable linker. Enfortumab vedotin is thought to induce anti-tumor activity by binding to the nectin-4 protein on the surface of cancer cells, leading to internalization, proteolytic cleavage of the linker, and intracellular release of MMAE that subsequently disrupts tubulin polymerization and leads to mitotic arrest and apoptosis of the tumor cell.
Treatment groups
Trial outcomes
Primary outcomes
Estimate the overall response rate (ORR)
Overall response rate (ORR) of enfortumab vedotin treatment for patients with endometrioid or serous endometrial cancer, i.e., proportion of patients with a complete or partial response as per RECIST v1.1.
Evaluate the safety of enfortumab vedotin treatment
Incidence of adverse events (AEs) and serious adverse event (SAEs) as defined by NCI CTCAE v5.
Secondary outcomes
Characterize the Duration of Response (DOR)
Duration of response (DOR), i.e., the time from date of initial response to therapy by RECIST v1.1 to subsequent disease progression, relapse or death.
Estimate overall survival (OS)
Median overall survival (OS), i.e., the time from date of treatment to the date of death due to any reason.
Estimate progression-free survival (PFS)
the time from date of treatment to the date of disease progression or death, as assessed per RECIST v1.1.
Duration of response (DOR) by MMR status.
Subgroup analysis of response by MMR status (i.e., proficient or deficient), and by TCGA sub-type, 1. Ultramutated (POLE), 2. Hypermutated (MSI), 3. Copy Number low (endometrioid), 4. Copy-Number high (serous like).
Sponsors and contacts
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William Bradley
Lead sponsor
Medical College of Wisconsin
Sponsor institution
Astellas Pharma Inc
Collaborator