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Roche says divarasib cut risk of death 44% in lung cancer trial

By Thomson Reuters Oct 25, 2026 | 1:35 PM

ZURICH, Oct 25 (Reuters) – Swiss drugmaker Roche said on Sunday its experimental lung cancer drug divarasib reduced the ​risk of death by 44% ‌compared with existing treatments in a phase III study.

• Roche said patients with previously treated KRAS G12C-mutated non-small cell lung cancer who received ‌divarasib ​had median overall survival ⁠of nearly 18 months, ⁠compared with 12 months for those treated with sotorasib or adagrasib

• Divarasib also lowered the risk of disease progression ​or death by 42%, with median progression-free survival of 9.8 months against ⁠5.7 months in the ⁠control group

• The Phase III ​Krascendo 1 trial involved 338 patients and ​compared divarasib with the two approved ‌KRAS G12C inhibitors

• The objective response rate was 58% for divarasib, versus 32% for sotorasib or adagrasib

• No new safety ⁠findings were observed. Some 4.8% of patients on divarasib stopped treatment because of treatment-related adverse ⁠events, versus ‌11.7% in the control group

• ⁠Roche said it was working ​with ‌health authorities to bring the ​treatment to ⁠patients

• The results were presented at the European Society for Medical Oncology Congress and published in the New England Journal of Medicine

(Writing by Dave Graham; editing by ​Barbara Lewis)