Monte Rosa Therapeutics IncNovartis dosing the first Phase 2 patient triggers a $50M milestone payment to Monte Rosa, part of a collaboration worth up to $2.1B.
Monte Rosa Therapeutics announced on September 8 that partner Novartis has dosed the first patient in a Phase 2 trial of the VAV1-targeted drug MRT-6160, also known as DDY391, in people with Sjögren's disease, triggering a $50 million milestone payment to Monte Rosa and marking the first step in a collaboration that could eventually be worth up to $2.1 billion. Novartis is footing the entire bill for the study, which will track participants for as long as a year of treatment and compare the drug against placebo across multiple sites to select the right dose before a Phase 3 program begins, and Monte Rosa stands to collect further payments each time a new Phase 2 study opens for MRT-6160 in other immune conditions. In an earlier Phase 1 trial, the molecule knocked down VAV1 protein levels by over 90% in patients' T cells and calmed key markers of inflammation without triggering any serious side effects. Monte Rosa also reported on August 6 that enrollment and dosing had wrapped up in its GFORCE-1 study of MRT-8102 in people with elevated cardiovascular risk, with results due later in 2026, and that its MODeFIRe-1 study pairing MRT-2359 with the prostate cancer drug apalutamide is up and running, backed by $626 million in cash, equivalents, and marketable securities as of June 30 that management says can fund operations into 2029. The progress has come at a cost: collaboration revenue fell to $9.0 million in the second quarter of 2026 from $23.2 million a year earlier, research spending rose to $48.0 million from $30.7 million, administrative costs climbed to $10.1 million from $8.1 million, and the quarterly net loss ballooned to $43.4 million, more than triple the $12.3 million loss in the same period of 2025. Hedge fund ownership edged up to 36 funds from 35, while 21.52% of the float is sold short, an unusual pairing that suggests the market has not settled on whether the milestone cash flow outweighs the widening losses.
Monte Rosa Therapeutics IncNovartis dosing the first Phase 2 patient triggers a $50M milestone payment to Monte Rosa, part of a collaboration worth up to $2.1B.
Novartis AGNovartis is funding and advancing the Phase 2 trial of VAV1-targeted MRT-6160/DDY391 in Sjögren's disease after promising Phase 1 data.