RIBBON-LA-01: Single-arm, Open-label, Phase 2 Trial of Tislelizumab and Metronomic Capecitabine as Maintenance Therapy in High-risk Locoregionally-advanced Nasopharyngeal Carcinoma
Patients with high-risk locoregionally-advanced nasopharyngeal carcinoma (LA-NPC), defined as AJCC/UICC 8th edition TNM-stage III-IVA and high Epstein-Barr virus (EBV) DNA viral load (≥4,000 copies/mL) will require induction chemotherapy (IC) prior to chemo-radiation (CCRT) as per standard treatment. Patients who persist to manifest DETECTABLE EBV DNA following 3 cycles of IC have a higher risk of relapse, and are typically recommended for a year of low-dose oral chemotherapy after CCRT. RIBBON-LA-01 is a single-arm, open-label, phase 2 clinical trial of maintenance tislelizumab and metronomic capecitabine (metroCap) for 52 weeks after IC and CCRT, targeting this specific group of patients who have persistent detectable EBV DNA after IC. The main objective is to evaluate the efficacy of maintenance tislelizumab and metroCap in patients with DETECTABLE EBV DNA levels after 3 cycles of IC.
• Able to provide written informed consent and can understand and agree to comply with the requirements of the study and the schedule of assessments
• Age ≥21 years on the day of signing the ICF
• ECOG Performance Status ≤1
• Females of childbearing potential must be willing to use a highly effective method of birth control for the duration of the study, and ≥120 days after the last dose of tislelizumab, and have a negative urine or serum pregnancy test ≤7 days of start of trial
• Non-sterile males must be willing to use a highly effective method of birth control for the duration of the study and for ≥120 days after the last dose of tislelizumab