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‹ Mon · 13 Apr 2026
Promising but preliminary

Phase 2 Study of Cabozantinib (XL184) with Nivolumab and Ipilimumab for the Treatment of Poorly Differentiated Neuroendocrine Carcinomas (ETCTN10315).

A three-drug combination shows promise against a rare, aggressive cancer type that previously had few treatment options available.

This Phase 2 trial evaluated cabozantinib combined with dual checkpoint inhibition (nivolumab + ipilimumab) in poorly differentiated neuroendocrine carcinomas, providing clinical evidence for a novel triple combination in a tumor type with limited treatment options. Efficacy and safety data from the ETCTN10315 trial advance the treatment landscape for this rare, aggressive cancer.

What the study was

Study design
Phase 2 clinical trial
Population
Poorly differentiated neuroendocrine carcinoma patients (ETCTN10315 multicenter trial)
Category
Treatment Innovation
Maturity
Validated
Journal
The Oncologist

Why it surfaced

Phase 2 data for triple combination (cabozantinib + dual checkpoint inhibition) in poorly differentiated NEC fills an important clinical gap for a rare, treatment-refractory cancer.

A plain-language summary of published research — not medical advice. Talk to a clinician about your own care.