The oncologist · 2026
Phase I study of bevacizumab and temsirolimus combination therapy in advanced malignancies: safety, efficacy, and ovarian cancer expansion.
СтатьяКлиническое исследование I фазыНазвание и аннотация: Перевод в очереди
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Piha-Paul Sarina A, Tseng Chieh, Thompson Emily, Stafford R Jason, Le Hung, Kang Lei, Fu Siqing, Tsimberidou Apostolia, Blumenschein George, Ahnert Jordi Rodon, Slopis John M, Hong David, Naing Aung, Meric-Bernstam Funda, Ng Chaan S, Westin Shannon, Sood Anil K
Аннотация
BACKGROUND: Bevacizumab and temsirolimus target angiogenic and mTOR pathways in cancer progression.
METHODS: This phase I study enrolled 48 heavily pretreated patients with advanced solid tumors, including an ovarian cancer expansion cohort. Patients received bevacizumab biweekly plus temsirolimus weekly in a 3 + 3 design to assess safety, maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs). Exploratory analyses included tumor genomic profiling and dynamic contrast-enhanced MRI (DCE-MRI).
RESULTS: Patients had a median age of 59 and median four prior therapies. Common tumor types were ovarian (27%) and head and neck (15%). Treatment-related adverse events occurred in 93.8%, with 31.3% ≥grade 3. Five patients experienced DLTs, including grade 3 enteritis, fatigue, bowel obstruction/abdominal ileus/pulmonary embolism, bowel perforation and grade 3/4 elevated liver enzymes. MTD was bevacizumab 10 mg/kg biweekly plus temsirolimus 20 mg weekly. Overall, objective response rate (ORR) was 7.3% and 19.5% achieved stable disease ≥6 months (clinical benefit rate [CBR] 26.8%). In ovarian cohort, ORR was 16.7% and CBR 33.3%. Patients with tumor regression on DCE-MRI had lower ΔKtrans values.
CONCLUSION: Combination therapy showed acceptable safety and modest activity. Molecular and imaging findings were exploratory and limited. These preliminary observations could inform future biomarker studies. (ClinicalTrials.gov Identifier: NCT01552434).
METHODS: This phase I study enrolled 48 heavily pretreated patients with advanced solid tumors, including an ovarian cancer expansion cohort. Patients received bevacizumab biweekly plus temsirolimus weekly in a 3 + 3 design to assess safety, maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs). Exploratory analyses included tumor genomic profiling and dynamic contrast-enhanced MRI (DCE-MRI).
RESULTS: Patients had a median age of 59 and median four prior therapies. Common tumor types were ovarian (27%) and head and neck (15%). Treatment-related adverse events occurred in 93.8%, with 31.3% ≥grade 3. Five patients experienced DLTs, including grade 3 enteritis, fatigue, bowel obstruction/abdominal ileus/pulmonary embolism, bowel perforation and grade 3/4 elevated liver enzymes. MTD was bevacizumab 10 mg/kg biweekly plus temsirolimus 20 mg weekly. Overall, objective response rate (ORR) was 7.3% and 19.5% achieved stable disease ≥6 months (clinical benefit rate [CBR] 26.8%). In ovarian cohort, ORR was 16.7% and CBR 33.3%. Patients with tumor regression on DCE-MRI had lower ΔKtrans values.
CONCLUSION: Combination therapy showed acceptable safety and modest activity. Molecular and imaging findings were exploratory and limited. These preliminary observations could inform future biomarker studies. (ClinicalTrials.gov Identifier: NCT01552434).