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Frontline Options Evolving in Newly Diagnosed Myeloma

Brandon Scalea
Published: Thursday, Oct 04, 2018

Bita Fakhri, MD, MPH
Bita Fakhri, MD, MPH
The field of newly diagnosed multiple myeloma has evolved to demonstrate that triplet regimens are better than doublets; however, more data are required before quadruplets become the standard of care, according to Bita Fakhri, MD, MPH.

State of the Science Summit™ on Hematologic Malignancies, Fakhri shared her insight on the treatment of patients with newly diagnosed multiple myeloma.

OncLive: Please provide an overview of your presentation.

Fakhri: My presentation focused on frontline treatment options for patients with newly diagnosed multiple myeloma. I tried to provide an overview on what has been used historically in multiple myeloma, and how the field has evolved over the last few years. Doublet regimens have become triplet regimens. VRd, which is a combination of lenalidomide, bortezomib, and dexamethasone, is a very common regimen in the United States.

Based on disease characteristics and patient characteristics, we can definitely come up with different regimens. Another accepted triplet is KRd, which is carfilzomib with lenalidomide and dexamethasone. This is preferred in the high-risk population. After that, I spoke about data from the past year, moving into quadruplet therapy. It is not commonly used yet, but there is one 4-drug regimen that is FDA approved. 

Please discuss the use of carfilzomib in the induction setting.

Currently, we use 2 factors to pick a regimen for a patient: transplant eligibility versus ineligibility and disease characteristics in terms of genomics. In transplant-ineligible patients, the use of KRd is not universally endorsed. There is the risk of pulmonary toxicity. At the same time, we have really good phase II data, particularly in the relapsed/refractory space. There was a trial looking at carfilzomib, lenalidomide, and dexamethasone. It showed prominent improvement in progression-free and overall survival for patients with relapsed/refractory multiple myeloma.

Based on the data in this setting, it makes perfect sense to choose KRd as induction therapy for relapsed patients. One other thing that is extremely important is the toxicity profile. Bortezomib is known for causing debilitating neuropathy, so if you have a patient who already has bad neuropathy, you would want to avoid that drug.

There is a frontline approval for VMP and daratumumab. While this might not have a significant impact in the United States, how does this open the door for future trials with daratumumab?

There was a recent study looking at daratumumab plus VMP versus VMP alone. The study had outstanding results, meeting all of its efficacy endpoints. The PFS at about 16 months was significantly better in the daratumumab with VMP group. The objective response rate (ORR) was also much higher.

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