GSK plc (LSE/NYSE: GSK) announced positive headline results from a planned interim analysis of the DREAMM-7 head-to-head phase III trial evaluating Blenrep (belantamab mafodotin) in combination with bortezomib plus dexamethasone (BorDex) as a second-line or later treatment for relapsed or refractory multiple myeloma. The trial met the key secondary endpoint of overall survival (OS), showing that belantamab mafodotin when combined with BorDex significantly reduced the risk of death versus standard of care daratumumab plus BorDex.

Hesham Abdullah, Senior Vice President, Global Head Oncology, R&D, GSK, said: “The overall survival results from the DREAMM-7 trial underscore the potential for this Blenrep combination to extend the lives of patients with relapsed/refractory multiple myeloma. This is a statistically significant and clinically meaningful advancement for patients and potentially transformative for treatment. We look forward to sharing these data with health authorities and presenting the full results at next month’s American Society of Hematology Annual Meeting.”

Results from the interim analysis, including safety data, will be presented at the upcoming 66th American Society of Hematology (ASH) Annual Meeting and Exposition on 9 December 2024 at 11:15 a.m. PT.

The DREAMM (DRiving Excellence in Approaches to Multiple Myeloma) clinical development programme continues to evaluate the potential of belantamab mafodotin in early lines of treatment and in combination with novel therapies and standard of care treatments. In addition to DREAMM-7, this includes the ongoing head-to-head phase III DREAMM-8 trial evaluating belantamab mafodotin in combination with pomalidomide and dexamethasone versus bortezomib in combination with pomalidomide and dexamethasone.

A phase III study in newly diagnosed transplant ineligible multiple myeloma is expected to be initiated by the end of 2024 as part of the DREAMM programme.

In 2024, belantamab mafodotin combinations have been filed in the US, European Union¹, Japan², United Kingdom, Canada and Switzerland for the treatment of relapsed or refractory multiple myeloma based on the results of the DREAMM-7 and DREAMM-8 trials. In China³, the National Medical Products Administration has granted Breakthrough Therapy Designation for belantamab mafodotin in combination with BorDex, as well as priority review for the regulatory application based on the results of DREAMM-7.