Myeloma specialist, Dr. Omar Nadeem, shares promising research advances in myeloma from the 2021 American Society of Hematology (ASH) annual meeting. Dr. Nadeem discusses the future of personalized medicine for myeloma, as well as positive results from a clinical study on quadruplet therapy.
Dr. Omar Nadeem is the Clinical Director of Myeloma Cellular Therapies Program and Director of Myeloma and Plasma Cell Pathways at the Dana-Farber Cancer Institute. Learn more about Dr. Nadeem, here.
Personalized medicine for myeloma is slowly becoming more of a reality for patients. Can you provide an update in testing in myeloma? Are there specific markers that you’re looking for when considering patient care?
So in multiple myeloma, right now the only targeted therapy that’s in development is looking at venetoclax (Venclexta), and that’s in patients that have the t(11;14) translocation.
So, this has been studied for a while, both as single agent and in combinations and the big BELLINI study, which is looking at it in combination with bortezomib (Velcade) and dexamethasone (Decadron), really has had a lot of buzz over the last few years because there was a toxicity signal with the venetoclax arm.
But now with, again, updated results, etcetera, you’re starting to look to see which are the patients that benefited and which are the patients that didn’t.
And it’s becoming very, very clear that patients that have the t(11;14) translocation tend to benefit tremendously with the combination of venetoclax and bortezomib and dexamethasone. It’s really the patients that don’t have t(11;14) or high BCL2 expression, which is something that they’re also studying, those are the patients that didn’t benefit.
So, really fine tuning that to that particular population and using a combination like that is, I think, an example of where things are headed in myeloma. However, outside of that right now with where things stand, we don’t have targeted therapy to that extent beyond that.
Dr. Nadeem, with the ASH meeting closing out 2021, what are you excited about in myeloma research right now?
We’re seeing very impressive results with using quadruplet therapies for newly diagnosed multiple myeloma patents. So, they get a combination of a CD38 monoclonal antibody like daratumamab (Darzalex), and then combining it with our typical agents. So immunomodulatory, drugs, proteasome inhibitors, and steroids. So, an update at this meeting with the phase-2 GRIFFIN trial, which was presented by my colleague Dr. Jacob Laubach, basically giving an update after 24 months of maintenance therapy.
This trial looked at a combination of dara plus RVD, which is lenalidomide, bortezomib, and dexamethasone, with transplant and maintenance, for patients with newly diagnosed myeloma. And what we’ve seen with each update of this study, that the response rates with the quadruplets are significantly better with the triplet. And more notably, we’re seeing very high rates of minimal residual disease negativity in favor of the quadruplet, which usually translates into a greater prognosis for patients.
So, median PFS is still not reached for this particular study, but you can start to see now that the curves are starting to separate and hopefully with longer follow up, we’ll see even a clearer result showing that patients that receive a quadruplet therapy at the newly diagnosed phase of their myeloma therapy benefit tremendously. So, this was a really important update at ASH this year.