New Protocol: Cabozantinib + Temozolomide for Leiomyosarcoma

Cabozantinib and temozolomide combination demonstrated promising clinical benefit in patients with unresectable or metastatic leiomyosarcoma. The treatment showed manageable adverse events without any new safety concerns, and the progression-free survival was favorable compared to existing therapies.

  • Study

    Single-arm, lead-in phase 2 trial [NCT04200443]
    Unresectable or metastatic leiomyosarcoma (Cohort 1) and other soft tissue sarcomas (Cohort 2)
    Cabozantinib and temozolomide (n=72)



  • Efficacy

    PFS at 12 weeks: 74% (Cohort 1, leiomyosarcoma)
    Median PFS Cohort 1: 6.3 mos
    Median PFS Cohort 2: 3.0 mos
    Median OS Cohort 1: 19.2 mos
    Median OS Cohort 2: 7.7 mos



  • Safety

    Grade >=3 AE: platelet count decrease (30%), neutrophil count decrease (18%), hypertension (10%), diarrhoea (8%)
    No treatment-related deaths


  • Lancet Oncol. Published online January 16, 2026

    Monga V, Okuno S, Van Tine B Cabozantinib and temozolomide in patients with unresectable or metastatic leiomyosarcoma and other soft tissue sarcomas: a multicentre, single-arm, lead-in phase 2 trial

    http://doi.org/10.1016/S1470-2045(25)00654-0

    Reviewed by Ulas D. Bayraktar, MD on Jan 21, 2026

    Back to top Drag