What should a patient consider when deciding on a chronic lymphocytic leukemia (CLL) treatment approach? Dr. Susan O’Brien, a Hematology-Oncology specialist, provides key factors that help guide treatment choices for patients with CLL.
Dr. Susan O’Brien is the Associate Director for Clinical Science, Chao Family Comprehensive Cancer Center.
Dr. O’Brien, once it’s determined that it’s time to move forward with treatment, what do you take into consideration to help guide the treatment choice?
Dr. Susan O’Brien:
Well, the good news and the bad news are kind of the same. The bad news is it’s a very complicated decision, but the good news is the reason it’s complicated is because we have a lot of good options. So, as I said, there are some people for whom chemotherapy would still be an option. One of the benefits of that is that it’s intravenous, i.e. there’s no copays for the patient. It’s administered over a finite period of time. Generally, six months.
And then, most patients will get several years of remission after that where they don’t have to be on any treatment. However, we now have what we call the small molecules or the targeted therapies and those come in two major categories. One is called BTK inhibitors. And there we have two drugs available in the same family, if you will. One is ibrutinib. One is acalabrutinib.
And then we have a different category of oral treatment where we only have one drug, which is a BCL-2 Inhibitor, which is Venetoclax. So, what these drugs do, they’re not chemotherapy, but they interfere with certain proteins in the CLL cell. And by doing that, cause the cell to die off.
Okay. What do you feel is the patient’s role in this decision?
Well, I think the patient plays a key role, which they usually do when there’s options because then you have – you with your doctor have to make a choice. So, for example, we talked about chemotherapy is time limited and you generally will be done after six months in contrast, with the BTK inhibitors, those are given indefinitely. They’re pills but given indefinitely for several years.
With Venetoclax it’s given with an antibody, which is given intravenously but the Venetoclax can be stopped after 12 months. So, the side effect profiles are different also. So, we have to take into consideration the duration of the therapy as well as the side effect profiles in determining what might be best for that patient.