Medical Oncology
Physician insights on cancer treatment protocols, immunotherapy, targeted therapies, and clinical trial updates.
Recent Discussions
In a patient with negative Hep B surface Ag, Hep B surface antibody+, and Hep B core antibody+ serologies, do you initiate antiviral prophylaxis (e.g. entecavir) prior to starting rituximab?
I would use entecavir for Hep B reactivation prophylaxis in this case - based on recommendations from AGA 2025 guidelines, which does classify b-cell depleting agents as higher risk for reactivation for both Hep B surface Ag-positive and Hep B surface Antigen neg/core positive patients. It should be...
Is there a role for induction chemotherapy for locally advanced head and neck squamous cell carcinoma prior to definitive chemoradiation?
Induction chemotherapy can be considered in some patients with locally advanced SCCHN, primarily those patients with large bulky tumors who are at highest risk for developing distant metastases. Moreover, if you are looking to attain reduction in tumor bulk for symptom control and possibly control o...
How do you approach DOAC dose reduction for secondary prophylaxis of VTE in cancer-associated thrombosis?
Data from the API-CAT trial (Mahé et al., PMID 40162636) show that de-escalation of apixaban after 6 months was non-inferior compared to the standard dose with respect to recurrent VTE. Although there was no difference in major bleeding, the lower dose of apixaban was superior from the clinically re...
How do you approach DOAC dose reduction for secondary prophylaxis of VTE in cancer-associated thrombosis?
Data from the API-CAT trial (Mahé et al., PMID 40162636) show that de-escalation of apixaban after 6 months was non-inferior compared to the standard dose with respect to recurrent VTE. Although there was no difference in major bleeding, the lower dose of apixaban was superior from the clinically re...
How do you manage patients with atrial fibrillation having a thromboembolic infarct despite being on adequate anticoagulation?
This scenario is always challenging. In terms of anticoagulation, the efficacy of DOACs in preventing embolic events in AF patients is around 70%, which is impressive compared to warfarin but not foolproof. In cases of a second embolic event while on anticoagulation, two reasonable approaches are of...
What is your approach to a situation where DILI is suspected secondary to an important medication (e.g., anticoagulation, antibiotics, etc.), but the diagnosis is uncertain and the liver injury is relatively mild?
If the drug suspected to induce liver injury causes symptoms and ALT is >3 times the upper limit of normal (ULN), I would stop the drug and find an alternative. Even if no symptoms are present, I would stop if ALT is >5 times ULN. Any level increase of ALT below the above parameters would still requ...
How would you approach a stage 1 HR+/HER2- pre-menopausal patient <50 years old with Oncotype DX RS of 24?
All the prior comments are very reasonable. It is hard to completely exclude a small absolute benefit from chemotherapy in this group. The trial's subset analyses aren't designed to definitively answer whether ovarian suppression or direct action of the chemo led to the observed risk reduction in <5...
Which adjuvant chemotherapy regimen would you recommend for a peri-menopausal woman with synchronous stage IA primary breast tumors, one that is ER+HER2+ and the second ER+HER2-?
I would treat the patient with paclitaxel 80mg/m2 x 12 weeks plus trastuzumab for a year (Tolaney et al., Clin Oncol 2019). The more difficult question is the optimal anti-estrogen therapy: tamoxifen (TAM), TAM + ovarian suppression (OS), or aromatase inhibitor (AI) + OS. This is because the SOFT an...
Given the results from the BILCAP trial presented at ASCO, would you change to or initiate therapy with capecitabine for patients with biliary tract cancer in the post-operative setting?
The BILCAP study represents the first data from a large, randomized, prospective, adequately-powered trial demonstrating a survival benefit for adjuvant therapy in this difficult-to-treat and relatively rare cancer.Given that capecitabine is relatively well tolerated, I would likely change from gemc...
Following long-term efficacy and safety data from the beti-cel trials, how do you approach gene therapy for eligible patients with transfusion-dependent β-thalassemia?
The results with beti-cel are excellent. So are the results with exa-cel. These two gene therapies use different approaches to modifying hemoglobin production in erythroid stem cells. Beti-cel adds a modified hemoglobin that resembles fetal hemoglobin using viral-mediated transduction, whereas exa-c...