What the trial was testing
The BOSTON enrolled 402 patients with multiple myeloma. The study was sponsored by Karyopharm Therapeutics Inc and tracked outcomes across the full group of patients who matched the trial's eligibility profile.
It was a large trial designed to confirm whether the treatment works well enough for wider use. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.
What the results showed
The combination kept cancer from getting worse for 13.93 months versus 9.46 months with standard treatment.
Lancet (London, England) · 2020 · NCT03110562
These findings — that nearly 4.5 months longer than standard treatment before the cancer got worse — were published in the Lancet (London, England) and represent the headline result of the study.
Researchers tracked outcomes across 402 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.
What this means for patients
For patients with multiple myeloma, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.
What you can do now
Selinexor combined with bortezomib and dexamethasone is FDA-approved for multiple myeloma that has come back after other treatments. The once-weekly dosing schedule is more convenient than twice-weekly bortezomib alone and caused less nerve damage. Talk to your oncologist about whether this combination is right for your situation.
Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.
Open multiple myeloma trials
A Study to Evaluate the Efficacy of Cemsidomide + Dexamethasone in Participants With Relapsed/Refractory Multiple Myeloma
This is a Phase 2, open-label, single-arm, multicenter study to assess the antimyeloma activity and further characterize the safety, tolerability, PK, and PD of cemsidomide in combination with dexamethasone in participants with relapsed/refractory multiple myeloma (r/r MM).
Measurable Residual Disease-Guided Post-Transplant Elranatamab Maintenance
This study evaluates an individualized approach combining highly active maintenance treatment with elranatamab with peripheral blood-based clonotypic measurable residual disease (MRD) testing in patients with newly diagnosed multiple myeloma. The overall goal is to generate efficacy data for a personalized maintenance approach using bone marrow-based MRD testing (clonoSEQ) to guide post-autologous hematopoietic cell transplant (AHCT) maintenance with elranatamab for this patient population.