PMID- 31473120 OWN - NLM STAT- MEDLINE DCOM- 20200706 LR - 20211204 IS - 1938-0682 (Electronic) IS - 1558-7673 (Linking) VI - 17 IP - 6 DP - 2019 Dec TI - Results of a Real-world Study of Enzalutamide and Abiraterone Acetate With Prednisone Tolerability (REAAcT). PG - 457-463.e6 LID - S1558-7673(19)30245-9 [pii] LID - 10.1016/j.clgc.2019.07.017 [doi] AB - BACKGROUND: The objective of this study was to evaluate differences in tolerability in patients with metastatic castration-resistant prostate cancer treated with enzalutamide (ENZA) or abiraterone acetate plus prednisone (AA+P). PATIENTS AND METHODS: This was a phase IV, prospective, open-label, multicenter, real-world study. Patients were prescribed ENZA or AA+P at the treating physician's discretion. Computerized tests of 4 cognitive domains (Cogstate), patient-reported outcomes (European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 [EORTC QLQ-30], Functional Assessment of Chronic Illness Therapy-Fatigue [FACIT-Fatigue], Functional Assessment of Cancer Therapy-Cognitive Function [FACT-Cog]), and patient/caregiver surveys were assessed at baseline and 2 months. Safety data were collected. RESULTS: Of 100 treated patients, 92 were evaluable (46/arm). Baseline characteristics were similar, with mild cognitive impairment observed in approximately 20% of patients. The FACIT-Fatigue demonstrated a statistically significant worsening from baseline of -4.00 (95% confidence interval, -6.61 to -1.39) for ENZA compared with AA+P, -0.01 (95% confidence interval, -2.40 to 2.38). Overall, more adverse events (AEs) and more AEs of fatigue were reported with ENZA versus AA+P (52% vs. 36% and 26% vs. 8%, respectively). Grade 3/4 AEs were similar (4% vs. 6%). Unique neuropsychiatric AEs reported with ENZA included amnesia, cognitive disorders, memory impairment, and confusional state; those for AA+P included cerebrovascular accident, presyncope, and spinal cord compression. Clinically meaningful cognitive decline was seen in 4 patients on ENZA versus 1 patient on AA+P. However, the overall mean changes from baseline for the Cogstate tests, the EORTC QLQ-C30, and the FACT-Cog assessment were similar and showed no meaningful change. Caregiver survey responses noted more fatigue with ENZA and more moodiness with AA+P compared with patient responses. CONCLUSIONS: Although baseline values were similar, more fatigue and neurocognitive differences were observed with ENZA compared with AA+P. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Shore, Neal D AU - Shore ND AD - Carolina Urologic Research Center, Myrtle Beach, SC. Electronic address: nshore@gsuro.com. FAU - Saltzstein, Daniel AU - Saltzstein D AD - Urology San Antonio, San Antonio, TX. FAU - Sieber, Paul AU - Sieber P AD - Lancaster Urology, Lancaster, PA. FAU - Mehlhaff, Bryan AU - Mehlhaff B AD - Oregon Urology Institute, Springfield, OR. FAU - Gervasi, Lawrence AU - Gervasi L AD - SouthWest Urology, Cleveland, OH. FAU - Phillips, Jennifer AU - Phillips J AD - Janssen Scientific Affairs, LLC, Horsham, PA. FAU - Wong, Yu-Ning AU - Wong YN AD - Janssen Scientific Affairs, LLC, Horsham, PA. FAU - Pei, Huiling AU - Pei H AD - Janssen Research & Development, LLC, Spring House, PA. FAU - McGowan, Tracy AU - McGowan T AD - Janssen Scientific Affairs, LLC, Horsham, PA. LA - eng PT - Clinical Trial, Phase IV PT - Journal Article PT - Multicenter Study PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20190806 PL - United States TA - Clin Genitourin Cancer JT - Clinical genitourinary cancer JID - 101260955 RN - 0 (Benzamides) RN - 0 (Nitriles) RN - 2010-15-3 (Phenylthiohydantoin) RN - 93T0T9GKNU (enzalutamide) RN - EM5OCB9YJ6 (Abiraterone Acetate) RN - VB0R961HZT (Prednisone) SB - IM MH - Abiraterone Acetate/*adverse effects MH - Affect/drug effects MH - Aged MH - Aged, 80 and over MH - Amnesia/chemically induced/epidemiology MH - Antineoplastic Combined Chemotherapy Protocols/*adverse effects MH - Benzamides MH - Caregivers/statistics & numerical data MH - Cognitive Dysfunction/chemically induced/epidemiology MH - Confusion/chemically induced/epidemiology MH - Fatigue/chemically induced/epidemiology MH - Humans MH - Male MH - Middle Aged MH - Nitriles MH - Phenylthiohydantoin/adverse effects/*analogs & derivatives MH - Prednisone/*adverse effects MH - Prospective Studies MH - Prostatic Neoplasms, Castration-Resistant/*drug therapy/pathology MH - Quality of Life MH - Surveys and Questionnaires/statistics & numerical data MH - Treatment Outcome OTO - NOTNLM OT - Clinical trial OT - Phase IV OT - Prospective OT - Prostatic neoplasms OT - mCRPC EDAT- 2019/09/02 06:00 MHDA- 2020/07/07 06:00 CRDT- 2019/09/02 06:00 PHST- 2019/04/17 00:00 [received] PHST- 2019/07/19 00:00 [revised] PHST- 2019/07/28 00:00 [accepted] PHST- 2019/09/02 06:00 [pubmed] PHST- 2020/07/07 06:00 [medline] PHST- 2019/09/02 06:00 [entrez] AID - S1558-7673(19)30245-9 [pii] AID - 10.1016/j.clgc.2019.07.017 [doi] PST - ppublish SO - Clin Genitourin Cancer. 2019 Dec;17(6):457-463.e6. doi: 10.1016/j.clgc.2019.07.017. Epub 2019 Aug 6.