Real-world treatment and quality of life (QOL) in locally advanced or metastatic urothelial carcinoma (la/mUC) in Saudi Arabia, Singapore, South Korea, Taiwan, and Turkey.

Abstract

462 Background: Little is known about treatment and QOL of la/mUC in Saudi Arabia, South Korea, Turkey, and Taiwan. Therefore, this study assessed patient (pt), tumor, and disease characteristics; treatment sequencing; and QOL in pts with la/mUC treated in these countries. Methods: Data were drawn from the Adelphi mUC Disease-Specific Programme, a real-world, multinational, point-in-time study using validated methodology (Anderson et al. Curr Med Res Opin. 2008;24:3063-72) and included physician surveys, chart reviews, and pt questionnaires (Saudi Arabia, Turkey, and Taiwan only). Data were collected (12/2021–3/2022) from oncologists and urologists and adult pts with confirmed la/mUC. EQ-5D visual analogue scale (VAS; scores: 0 [worst health] to 100 [best health]) and the global health status (QL2) from the European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 (scores: 0 [low functioning] to 100 [high functioning]) questionnaires were used to assess QOL. Results: Data were provided by 175 physicians for 988 pts (Turkey, n=300; Saudi Arabia, n=240; South Korea, n=298; Taiwan, n=150) with la/mUC. Mean pt age was 66.3 y; 77% were men. Most (77%) pts had no family history of urothelial carcinoma (UC); 30% recorded no risk factors (eg, genetic risk, smoking, occupational exposure). At initial UC diagnosis, the bladder was the initial tumor location in 82% of pts, of whom 67% had la/mUC, and 83% of pts had an Eastern Cooperative Oncology Group performance status 0–2. At data collection, the most common metastatic sites were the lymph nodes (53%), lungs (29%), liver (27%), and bone (21%). Biomarker/tumor testing was not done in 45% of pts. In pts initially diagnosed with nonmetastatic UC (n=346), 28% received neoadjuvant and 31% received adjuvant therapy. Of pts receiving ≥1 line of therapy (LOT) for la/mUC (n=988), 74% received gemcitabine, 60% received cisplatin, 18% received carboplatin, 17% received a programmed cell death protein 1/ligand 1 (PD-1/L1) inhibitor, and 4% received best supportive care (BSC) in the first-line (1L) setting; mean duration of therapy (DOT) in 1L was 5.7 mo. Of pts receiving ≥2 LOTs for la/mUC (n=290), 63% received a PD-1/L1 inhibitor and 35% received chemotherapy in the second-line (2L) setting; mean DOT in 2L was 4.9 mo. Of pts receiving ≥3 LOTs for la/mUC (n=87), 59% received chemotherapy (most often cisplatin [46%] or gemcitabine [38%]), 34% received a PD-1/L1 inhibitor, and 10% received BSC only in the third-line (3L) setting; mean DOT in 3L was 4.3 mo. Questionnaires were available for 319 pts. Mean (SD) EQ-5D VAS score was 51.8 (15.6); EORTC QL2 score was 44.6 (19.9). Conclusions: Pts with la/mUC in this multinational study generally received 1L platinum-based and 2L PD-1/L1 inhibitor therapies. These results highlight the need for therapies that improve clinical and QOL outcomes.