MEN1703 (SEL24) to Treat Relapsed or Refractory Aggressive B-cell Non-Hodgkin Lymphoma (JASPIS-01)

The study consists of 3 parts, to investigate MEN1703 (Dapolsertib hydrochloride) in combination with glofitamab in patients who are naïve to treatment with an anti-CD3xCD20 bispecific antibody (group 1) or MEN1703 alone in patients who have exhausted all standard treatment options (group 2). Part 1 (safety run-in) and Part 2 (enrichment): patients who are naïve to treatment with an anti-CD3xCD20 bispecific antibody (group 1) will receive either 150 mg or 125 mg of MEN1703 along with glofitamab. Patients who have exhausted all standard treatment options (group 2) will receive 125 mg of MEN1703 as a single-agent. Part 3 (optional randomized comparison): Patients who are naïve to treatment with an anti-CD3xCD20 bispecific antibody therapy will be randomized to receive either MEN1703 (Dapolsertib hydrochloride) at a dose selected from part 2 in combination with glofitamab or glofitamab alone.