A Multicenter Phase II Study of Modified FOLFIRINOX for First-Line Treatment for Advanced Urachal Cancer (ULTIMA; KCSG GU20-03)
Abstract
Purpose: This study aimed to assess the efficacy and safety of first-line modified FOLFIRINOX in patients with advanced urachal cancer.
Materials and methods: The ULTIMA trial (NCT04611724) is a single-arm, open-label, multicenter phase II study evaluating modified FOLFIRINOX (oxaliplatin 85 mg/m2 over 2 hours, irinotecan 150 mg/m2 over 1.5 hours, leucovorin 400 mg/m2 over 2 hours, and 5-fluorouracil 2,400 mg/m2 over 46 hours) plus prophylactic pegteograstim in patients with recurrent or metastatic urachal cancer every 2 weeks for up to 12 cycles, or until disease progression or unacceptable toxicity. The primary endpoint was the overall response rate (ORR). Secondary endpoints included progression-free survival (PFS), overall survival (OS), and the incidence of febrile neutropenia.
Results: Between April 2021 and November 2023, 21 patients with advanced urachal cancer were enrolled across five cancer centers. The median age was 50 years (range, 28 to 68 years), with 15 male patients. The most common metastatic site was the lung (47.6%), followed by lymph nodes (38.1%) and peritoneal seeding (33.3%). Two patients and 11 patients achieved a complete and partial response, respectively, yielding an ORR of 61.9%. The study met its primary endpoint in the first stage. With a median follow-up of 23.3 months, the median PFS was 9.3 months (95% confidence interval [CI], 6.7 to 11.9), and the median OS was 19.7 months (95% CI, 14.3 to 25.1). The treatment regimen was well tolerated,…
How strong is the evidence?
Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 15 participants or records.
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