Laura M Chambers1, Meng Yao2, Molly Morton3, Morgan Gruner3, Anna Chichura3, Max Horowitz4, Anthony B Costales5, Peter G Rose4, Chad M Michener4, Robert Debernardo4. 1. Division of Gynecologic Oncology, Obstetrics, Gynecology, Women's Health Institute, Cleveland Clinic, Desk A81, 9500 Euclid Avenue, Cleveland, OH 44195, United States. Electronic address: chambel2@ccf.org. 2. Department of Qualitative Health Sciences, Cleveland Clinic, Cleveland, OH 44195, United States. 3. Obstetrics, Gynecology, Women's Health Institute, Cleveland Clinic, Desk A81, 9500, United States. 4. Division of Gynecologic Oncology, Obstetrics, Gynecology, Women's Health Institute, Cleveland Clinic, Desk A81, 9500 Euclid Avenue, Cleveland, OH 44195, United States. 5. Department of Gynecologic Oncology, Baylor College of Medicine, Houston, TX 77030, United States.
Abstract
OBJECTIVE(S): To identify recurrence patterns and outcomes in women with advanced or recurrent epithelial ovarian cancer (EOC) after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS: This is an IRB-approved single-institution cohort study of women who underwent CRS+HIPEC for advanced or recurrent EOC followed in a prospective registry from 1/12/2014-3/1/2020. Recurrence locations were defined as pelvic, upper abdominal (UA) and/or extra-peritoneal (EP). Univariate analysis assessed associations between recurrence location, progression-free survival (PFS), and overall survival (OS). RESULTS: In total, 92 women with EOC underwent interval (56.5%; n=52) or recurrent CRS+HIPEC (43.5%; n=40). For interval CRS+HIPEC, recurrence locations were pelvic in 50.0% (n=15), UA in 23.3% (n=7) and EP in 56.7% (n=17); 40.0% (n=12) were EP alone. Similarly, for recurrent CRS+HIPEC, recurrence locations were pelvic (22.5%, n=9), UA (5.0%, n=2) and EP (60.0%, n=24); 66.7% (n=20) were EP alone. For both interval and recurrent CRS+HIPEC, median PFS was 10.5 vs. 13.0 months for pelvic and UA vs. EP only recurrences (p=0.02). Similarly, median OS was 29.2 months for pelvic and UA and not reached for EP only (p=0.05). For interval CRS+HIPEC, there was no difference in median PFS (10.6 vs. 11.7 months, p=0.68) and OS (27.1 vs. 24.8 months, p=0.96) for pelvic and UA vs EP alone. However, for recurrent CRS+HIPEC, pelvic and UA sites of recurrence were associated with reduced PFS (10.0 vs. 18.1 months, p=0.03) and OS (33.6 months vs. not reached, p=0.02) vs. EP only. CONCLUSIONS: In women with advanced or recurrent EOC undergoing CRS+HIPEC, one-half of patients experience their first recurrence outside of the peritoneal cavity. Providers must be aware of the risk of EP failure in patients treated with CRS+HIPEC.
OBJECTIVE(S): To identify recurrence patterns and outcomes in women with advanced or recurrent epithelial ovarian cancer (EOC) after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS: This is an IRB-approved single-institution cohort study of women who underwent CRS+HIPEC for advanced or recurrent EOC followed in a prospective registry from 1/12/2014-3/1/2020. Recurrence locations were defined as pelvic, upper abdominal (UA) and/or extra-peritoneal (EP). Univariate analysis assessed associations between recurrence location, progression-free survival (PFS), and overall survival (OS). RESULTS: In total, 92 women with EOC underwent interval (56.5%; n=52) or recurrent CRS+HIPEC (43.5%; n=40). For interval CRS+HIPEC, recurrence locations were pelvic in 50.0% (n=15), UA in 23.3% (n=7) and EP in 56.7% (n=17); 40.0% (n=12) were EP alone. Similarly, for recurrent CRS+HIPEC, recurrence locations were pelvic (22.5%, n=9), UA (5.0%, n=2) and EP (60.0%, n=24); 66.7% (n=20) were EP alone. For both interval and recurrent CRS+HIPEC, median PFS was 10.5 vs. 13.0 months for pelvic and UA vs. EP only recurrences (p=0.02). Similarly, median OS was 29.2 months for pelvic and UA and not reached for EP only (p=0.05). For interval CRS+HIPEC, there was no difference in median PFS (10.6 vs. 11.7 months, p=0.68) and OS (27.1 vs. 24.8 months, p=0.96) for pelvic and UA vs EP alone. However, for recurrent CRS+HIPEC, pelvic and UA sites of recurrence were associated with reduced PFS (10.0 vs. 18.1 months, p=0.03) and OS (33.6 months vs. not reached, p=0.02) vs. EP only. CONCLUSIONS: In women with advanced or recurrent EOC undergoing CRS+HIPEC, one-half of patients experience their first recurrence outside of the peritoneal cavity. Providers must be aware of the risk of EP failure in patients treated with CRS+HIPEC.
Authors: Laura M Chambers; Danielle Chau; Meng Yao; Anthony B Costales; Peter G Rose; Chad M Michener; Robert Debernardo; Roberto Vargas Journal: Gynecol Oncol Rep Date: 2021-10-15