Schrodinger discontinues SGR-2921 clinical development program

Schrodinger (SDGR) announced the discontinuation of the clinical development program for SGR-2921, its CDC7 inhibitor, which was being evaluated in a Phase 1 dose-escalation study in patients with relapsed/refractory acute myeloid leukemia or high-risk myelodysplastic syndromes. Despite early evidence of monotherapy activity observed in the Phase 1 study, based on the profile observed to date, including two emergent events where SGR-2921 was considered to have contributed to two deaths in patients with AML, Schrodinger believes the path to development as a combination therapy would be difficult to pursue. The Phase 1 study was supported by preclinical data which had demonstrated that CDC7 inhibition resulted in monotherapy and combination anti-leukemic responses in patient-derived AML models, suggesting that SGR-2921 could ultimately be used in combination with standard of care agents.