What Clinicians Want to Know: Addressing Community Oncologists’ Questions About the Current and Future Management of Endometrial Cancer — Symposium Proceedings

Faculty

TARGET AUDIENCE
This activity is intended for medical and gynecologic oncologists, hematology-oncology fellows and other healthcare providers involved in the treatment of endometrial cancer.

LEARNING OBJECTIVES

• Assess the clinical and biological characteristics of the various histologic subtypes and molecular subgroups of endometrial cancer (EC), and consider the implications for prognosis, biomarker evaluation and therapeutic decision-making.
• Appreciate available clinical research findings with anti-PD-1/PD-L1 antibodies in combination with chemotherapy as first-line treatment for advanced or recurrent EC, and educate patients with microsatellite instability-high/mismatch repair (MMR)-deficient or microsatellite-stable/MMR-proficient disease about this novel strategy.
• Understand the biological rationale for and available data with PARP inhibitors in combination with immune checkpoint inhibitor therapy for patients with advanced or metastatic EC.
• Review available data with anti-PD-1/PD-L1 antibodies in combination with agents targeting the VEGF pathway, and select patients with metastatic EC to receive this novel approach.
• Recognize the biological rationale for the evaluation of trophoblast cell surface antigen 2 (TROP2)-directed antibody-drug conjugates for patients with EC, and consider available research findings with and the potential role of these agents.
• Recognize adverse events associated with available and investigational therapies used in the treatment of EC to educate patients and manage complications.
• Describe the scientific justification for, published research data with and current studies of novel agents and strategies for EC, and effectively prioritize clinical trial opportunities for eligible patients.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Research To Practice designates this enduring material for a maximum of 1.75 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of this CME activity, which includes participation in the evaluation component and a post-test, enables the participant to earn up to 1.75 Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for the activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, this program has been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINUOUS CERTIFICATION (CC)
Successful completion of this CME activity, which includes participation in the evaluation component and a post-test, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, this program has been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for this activity, the participant should review the CME information, watch the video, complete the post-test with a score of 80% or better, and fill out the evaluation.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of this activity. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Dr Backes — Advisory Committees and Consulting Agreements: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Eisai Inc, Genmab US Inc, GSK, ImmunoGen Inc, Merck, Tubulis; Contracted Research: ImmunoGen Inc, Merck, Natera Inc; Data and Safety Monitoring Boards/Committees: MacroGenics Inc.  Dr Slomovitz — Advisory Committees: Aadi Bioscience, AstraZeneca Pharmaceuticals LP, BeOne, Daiichi Sankyo Inc, Eisai Inc, Genmab US Inc, Gilead Sciences Inc, GSK, Immunocore, Incyte Corporation, Karyopharm Therapeutics, Merck, Novocure Inc, Regeneron Pharmaceuticals Inc, Seagen Inc; Consulting Agreements: Aadi Bioscience, AstraZeneca Pharmaceuticals LP, Genmab US Inc, GSK, Karyopharm Therapeutics, Seagen Inc; Data and Safety Monitoring Boards/Committees: Genelux.

MODERATOR
Dr Westin — Consulting Agreements: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Caris Life Sciences, Corcept Therapeutics Inc, Daiichi Sankyo Inc, Eisai Inc, Faeth Therapeutics Inc, Genentech, a member of the Roche Group, Genmab US Inc, Gilead Sciences Inc, GSK, Immunocore, ImmunoGen Inc, Incyte Corporation, Lilly, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Merck, Mereo BioPharma, NGM Biopharmaceuticals, Nuvectis Pharma Inc, Ottimo Pharma, Pfizer Inc, pharmaand GmbH, PMV Pharma, Seagen Inc, Verastem Inc, Zentalis Pharmaceuticals, ZielBio; Contracted Research: AstraZeneca Pharmaceuticals LP, Avenge Bio, Bayer HealthCare Pharmaceuticals, Bio-Path Holdings Inc, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Genmab US Inc, GSK, Jazz Pharmaceuticals Inc, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Mereo BioPharma, Novartis, Nuvectis Pharma Inc, Pfizer Inc, pharmaand GmbH, Verastem Inc, Zentalis Pharmaceuticals.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

This educational activity contains discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

This activity is supported by educational grants from Eisai Inc, Gilead Sciences Inc, GSK, Karyopharm Therapeutics, and Merck.

Release date: July 2026
Expiration date: July 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Backes

Colombo N et al. Atezolizumab and chemotherapy for advanced or recurrent endometrial cancer (AtTEnd): A randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Oncol 2024;25(9):1135-46. Abstract

Erickson BK et al. Human epidermal growth factor 2 (HER2) in early stage uterine serous carcinoma: A multi-institutional cohort study. Gynecol Oncol 2020;159(1):17-22. Abstract

Erickson BK et al. Targeting human epidermal growth factor receptor 2 (HER2) in gynecologic malignancies. Curr Opin Obstet Gynecol 2020;32(1):57-64. Abstract

Eskander RN et al. Updated overall survival analysis and examination of subsequent therapy in endometrial cancer (EC) patients (pts) treated with pembrolizumab plus carboplatin/paclitaxel (CP) as compared to CP plus placebo (PBO) in the NRG-GY018 trial. ASCO 2026;Abstract 5502.

Eskander RN et al. Pembrolizumab plus chemotherapy in advanced endometrial cancer. N Engl J Med 2023;388(23):2159-70. Abstract

Heinhuis KM et al. Enhancing antitumor response by combining immune checkpoint inhibitors with chemotherapy in solid tumors. Ann Oncol 2019;30(2):219-35. Abstract

Kandoth C et al. Mutational landscape and significance across 12 major cancer types. Nature 2013;502(7471):333-9. Abstract

Leon-Castillo A et al. Clinicopathological and molecular characterisation of ‘multiple-classifier’ endometrial carcinomas. J Pathol 2020;250(3):312-22. Abstract

Marth C et al. First-line lenvatinib plus pembrolizumab versus chemotherapy for advanced endometrial cancer: 1-Year follow-up after final analysis of the ENGOT-en9/LEAP-001 phase 3 trial. Int J Gynecol Cancer 2026;36(1). Abstract

Mirza MR et al. Dostarlimab + chemotherapy for the treatment of primary advanced or recurrent endometrial cancer (pA/rEC): Analysis of progression free survival (PFS) and overall survival (OS) outcomes by molecular classification in the ENGOT-EN6-NSGO/GOG-3031/RUBY trial. ESMO 2023;Abstract 740MO.

Mirza MR et al. Dostarlimab for primary advanced or recurrent endometrial cancer. N Engl J Med 2023;388(23):2145-58. Abstract

Pignata S et al. MITO END-3: Efficacy of avelumab immunotherapy according to molecular profiling in first-line endometrial cancer therapy. Ann Oncol 2024;35(7):667-76. Abstract

Powell MA et al. Long-term survival rates and cure modeling with dostarlimab plus chemotherapy in mismatch repair deficient/microsatellite instability-high (dMMR/MSI-H) primary advanced or recurrent endometrial cancer in the ENGOT-EN6-NSGO/GOG-3031/RUBY trial. ASCO 2026;Abstract 5501.

Powell MA et al. Dostarlimab plus chemotherapy in primary advanced or recurrent endometrial cancer (pA/rEC) in the RUBY trial: Overall survival (OS) by MMR status and molecular subgroups. ESMO Gynaecological Cancers Congress 2024;Abstract 37MO.

Powell MA et al. Overall survival in patients with endometrial cancer treated with dostarlimab plus carboplatin-paclitaxel in the randomized ENGOT-EN6/GOG-3031/RUBY trial. Ann Oncol 2024;35(8):728-38. Abstract

Westin SN et al. Biomarker heterogeneity and efficacy of durvalumab plus carboplatin/paclitaxel followed by durvalumab with or without olaparib in patients with mismatch repair proficient endometrial cancer: Exploratory analyses of the DUO-E/GOG-3041/ENGOT-EN10 trial. Gynecol Oncol 2026;206:54-64. Abstract

Westin SN et al. Durvalumab plus carboplatin/paclitaxel followed by maintenance durvalumab with or without olaparib as first-line treatment for advanced endometrial cancer: The phase III DUO-E trial. J Clin Oncol 2024;42(3):283-99. Abstract

Yen T-T et al. Molecular classification and emerging targeted therapy in endometrial cancer. Int J Gynecol Pathol 2020;39(1):26-35. Abstract

Dr Westin

How JA et al. Toxicity and efficacy of the combination of pembrolizumab with recommended or reduced starting doses of lenvatinib for treatment of recurrent endometrial cancer. Gynecol Oncol 2021;162(1):24-31. Abstract

Konstantinopoulos PA et al. Homologous recombination deficiency: Exploiting the fundamental vulnerability of ovarian cancer. Cancer Discov 2015;5(11):1137-54. Abstract

Liang H et al. Whole-exome sequencing combined with functional genomics reveals novel candidate driver cancer genes in endometrial cancer. Genome Res 2012;22(11):2120-9. Abstract

Makker V et al. Lenvatinib plus pembrolizumab versus treatment of physician’s choice in participants with advanced endometrial cancer: 5-year outcomes from study 309/KEYNOTE-775. International Gynecologic Cancer Society 2025;Abstract.

Makker V et al. Characterization and management of adverse reactions in patients with advanced endometrial carcinoma treated with lenvatinib plus pembrolizumab. Oncologist 2021;26(9):e1599-608. Abstract

Marth C et al. Lenvatinib plus pembrolizumab versus chemotherapy as first-line therapy for advanced or recurrent endometrial cancer: Primary results of the phase 3 ENGOT-en9/LEAP-001 study. European Society of Gynaecological Oncology 2024;Abstract 88.

Marth C et al. Lenvatinib plus pembrolizumab versus chemotherapy as first-line therapy for advanced or recurrent endometrial cancer: Primary results of the phase III ENGOT-En9/LEAP-001 study. Society of Gynecologic Oncology 2024;Abstract LBA22.

Mirza M et al. Dostarlimab plus chemotherapy followed by dostarlimab plus niraparib maintenance therapy among patients with primary advanced or recurrent endometrial cancer in the ENGOT-EN6-NSGO/GOG-3031/RUBY trial. Society of Gynecologic Oncology 2024;Abstract LBA03.

Powell MA et al. PARP inhibitor maintenance therapy with niraparib in patients with primary advanced or recurrent endometrial cancer receiving dostarlimab plus chemotherapy. European Society of Gynaecological Oncology 2026;Abstract.

Shen J et al. ARID1A deficiency impairs the DNA damage checkpoint and sensitizes cells to PARP inhibitors. Cancer Discov 2015;5(7):752-67. Abstract

Siedel JH et al. Clinical significance of homologous recombination deficiency score testing in endometrial Cancer. Gynecol Oncol 2021;160(3):777-85. Abstract

Westin S et al. Durvalumab plus carboplatin/paclitaxel followed by durvalumab with/without olaparib in endometrial cancer: Exploratory analyses of biomarker/histological heterogeneity and efficacy in the DUO-E mismatch repair proficient subpopulation. International Gynecologic Cancer Society 2024;Abstract LB002.

Westin SN et al. Durvalumab plus carboplatin/paclitaxel followed by maintenance durvalumab with or without olaparib as first-line treatment for advanced endometrial cancer: The phase III DUO-E trial. J Clin Oncol 2024;42(3):283-99. Abstract

Witz A et al. Homologous recombination deficiency (HRD) testing landscape: Clinical applications and technical validation for routine diagnostics. Biomark Res 2025;13(1):31. Abstract

Dr Slomovitz

Eskander RN et al. Randomized study evaluating optimal dose, efficacy, and safety of E7386 plus lenvatinib versus treatment of physician’s choice in advanced/recurrent endometrial carcinoma previously treated with platinum-based chemotherapy and immune checkpoint inhibitors. Int J Gynecol Cancer 2025;35(9). Abstract

Leslie KK et al. Mutated p53 portends improvement in outcomes when bevacizumab is combined with chemotherapy in advanced/recurrent endometrial cancer: An NRG oncology study. Gynecol Oncol 2021;161(1):113-21. Abstract

Makker V et al. Long-term follow-up of efficacy and safety of selinexor maintenance treatment in patients with TP53wt advanced or recurrent endometrial cancer: A subgroup analysis of the ENGOT-EN5/GOG-3055/SIENDO study. Gynecol Oncol 2024;185:202-11. Abstract

Santin AD et al. Efficacy and safety of sacituzumab govitecan in patients with advanced solid tumors (TROPiCS-03): Analysis in patients with advanced endometrial cancer. J Clin Oncol 2024;42(29):3421-29. Abstract

Slomovitz B et al. A randomized phase III study of first-line (1L) trastuzumab deruxtecan (T-DXd) with rilvegostomig or pembrolizumab in patients with HER2-expressing, mismatch repair-proficient (pMMR), primary advanced or recurrent endometrial cancer (EC): DESTINY-Endometrial01/GOG-3098/ENGOT-EN24. ESMO 2025;Abstract 1223TiP.

Slomovitz BM et al. Long-term follow up of selinexor maintenance in patients with TP53wt advanced or recurrent endometrial cancer: A pre-specified subgroup analysis from the phase 3 ENGOT-EN5/GOG-3055/SIENDO study. ASCO 2023 Monthly Plenary Series;Abstract 427956.

Vergote I et al. Oral selinexor as maintenance therapy after first-line chemotherapy for advanced or recurrent endometrial cancer. J Clin Oncol 2023;41(35):5400-10. Abstract

Wang K et al. Sacituzumab tirumotecan (Sac-TMT) monotherapy in advanced/metastatic endometrial carcinoma (EC): Results from a phase I/II study (MK-2870-001/KL264-01). ESMO 2025;Abstract 111P.