Roche chucks out phase 3 ipatasertib combo tests, midstage IL-33 asthma, BTKi arthritis trials in Q4 clear-out

Roche chucks out phase 3 ipatasertib combo tests, midstage IL-33 asthma, BTKi arthritis trials in Q4 clear-out

Swiss major Roche is dumping a series of cancer, autoimmune and respiratory drugs in mid- to late-stage tests.

In its fourth-quarter and full-year results published (PDF) early Thursday morning, Roche said it had “removed from phase 3” two breast cancer combos using its Akt inhibitor ipatasertib (aka RG7440).

These comprise one late-stage trial that wedded the drug with chemotherapy in first-line HR-positive/triple-negative breast cancer (TNBC) patients and a combo test with Roche’s approved checkpoint inhibitor Tecentriq and taxane in first-line TNBC.

In a note to clients, analysts at Jefferies said the trials being canned was “expected after disappointing … data” from a breast cancer trial of ipatasertib presented at the European Society for Medical Oncology meeting last year, which proved to be a dud.

Ipatasertib had been forecast to top $1.1 billion in worldwide sales in 2026, according to EvaluatePharma’s consensus, with Jefferies analysts previously giving it a 40% probability to launch. The drug is still being assessed in prostate cancer and other breast cancer combination settings.

Back in phase 2, Roche has also stopped two trials: one for its Amgen-licensed anti-ST2 antibody astegolimab (RG6149)—which failed in in asthma as an IL-33 (following similar disappointments from the likes of Sanofi and GlaxoSmithKline)—and BTK inhibitor fenebrutinib in rheumatoid arthritis, although Roche is also testing the drug in multiple sclerosis.

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