Based on the data we now have, until there is a trial that demonstrates a higher OS rate with ASCT, it is hard for me to tell a patient to blindly pursue ASCT without learning more about all the available options. If you have access to a good salvage therapy, especially with all these new promising agents, a patient might be able to stay in remission without having ASCT, which can still have an increased risk of morbidity.
Are there certain patient groups that should never be considered for ASCT?
Dr. Barrientos: Younger patients with the CDKN2A gene—which represents about 22% of patients—and those who have a TP53 mutation should not be considered for a standard transplant because they have a worse outcome independent of the treatment. I would also include complex karyotype patients because of the same nature of the chromosomal aberrations. The more genetic aberrations that a patient has, the more likelihood that any chemotherapy will damage the DNA further and create a more aggressive clone. Instead, I would recommend that young patients in this category participate in a clinical trial with novel agents.
With novel therapies in the pipeline, the availability of CAR T, and now the bispecific antibodies such as blinatumomab and HexAbs coming along, the number of patients who may opt out of ASCT may increase. I have a long discussion with my patients. The more educated they are, the better it is for the patient. At the end of the day, the most important thing for me, with any therapy, is: how does the patient feel? Because if we cannot cure a patient or provide a survival advantage, I do not want to give that patient something that will decrease their quality of life. I would rather keep the patient in some sort of stable disease remission, comfortable, and having a good quality of life. That is my goal for anyone who cannot be cured. Now if it is a curable disease, like a diffuse large cell lymphoma or a Burkitt’s lymphoma, then it is a different story. But for people with MCL, a disease that you cannot cure, or chronic lymphocytic leukemia or follicular lymphoma, then it becomes a different discussion. Undetectable minimal residual disease correlates with longer remission durations, but sometimes trying to achieve that, you can actually do a lot of harm to some patients.
Are there any other conversations you have with your patients in day-to-day practice?
Dr. Barrientos: I always tell my patients to be on top of the age-appropriate cancer screening recommendations. For example, they should see a dermatologist once a year. Men should make sure that their prostate is checked. I recommend women get breast mammograms, Pap smears, and most importantly to avoid smoking—and that includes vaping. It is important to lead a healthy life to minimize the risk of secondary malignancies.
For risk of infections, I recommend to all my patients to be up to date on their vaccinations, such as pneumonia if they are older than 65, Shingrix for prevention of reactivation of varicella or chickenpox, and the flu shot once a year. I also recommend the COVID-19 vaccine even now, as our patients with blood disorders might have a harder time fighting COVID-19 infection. I always tell my patients to please reach out to us because we can discuss the use of antivirals such as Paxlovid (nirmatrelvir/ritonavir), and if they are sick, then they can get remdesivir in the hospital.