Medical Oncology
Physician insights on cancer treatment protocols, immunotherapy, targeted therapies, and clinical trial updates.
Recent Discussions
In which group of patients you would send for RNAseq for translocations/fusions that might be missed by NGS in advanced NSCLC?
In patients who are never/rare smokers in whom tissue NGS is negative, I would strongly consider RNAseq of a recent or fresh biopsy. You can find the occult fusion (or missed MET) in about 15% of NGS negative, TMB low cases based on this recent very nice paper from MSKCChttps://www.ncbi.nlm.nih.gov/...
How do you reconcile data from the PATINA trial and DESTINY-Breast09 with respect to CDK4/6 inhibitor maintenance in metastatic ER+ HER2+ breast cancer?
We don't have data on using T-DXd with palbociclib concurrently, but the data from DB09 and PATINA does lead to questions about the optimal 1st line approach in ER+HER2+ metastatic disease. DB09 allowed for concurrent endocrine therapy with T-DXd + P, and the ADC was continued until intolerance or p...
How would you treat a patient with metastatic NSCLC on pembrolizumab with a sustained complete response, now with 2 isolated small liver lesions?
I am unaware of any "level 1" evidence for this approach, much of our data is anecdotal, however there is certainly reasonable experience of treating "oligo-progressive" disease with local therapies. While there is more experience in adrenal and CNS metastatic disease, I would think that a local the...
What is your preferred first-line therapy for transfusion-dependent beta-thalassemia?
Transfusion is my preferred first-line therapy (and standard of care) for beta-thalassemia major. For beta-thalassemia intermedia that has evolved into TDT, my preferred first-line treatment is mitapivat over luspatercept, particularly if the patient has extramedullary masses (that have been noted t...
In which situations do you offer ovarian suppression with chemotherapy to prevent the development of premature menopause in premenopausal women with ER negative breast cancer?
I would consider the use of GnRHa during chemotherapy in all women that are premenopausal at breast cancer diagnosis (irrespective of age) and that are concerned about developing the side effects of early menopause. Current evidence supports its use as a standard strategy for ovarian function preser...
Would weak PR positivity make you consider adjuvant endocrine therapy for a young pre-menopausal woman with a HER2 positive, ER negative breast cancer?
I would discuss the uncertainties, and would offer tamoxifen at the most (I would not subject the patient to the toxicities of OFS and AI). I would also have a low threshold to discontinue tamoxifen if there are toxicities. If there are minimal to no side effects, it may be worthwhile getting the th...
Is there a role in sending liquid biopsy for patients progressing on ALK inhibitors?
We believe there is increasing value in testing for acquired resistance mechanisms and thereby sending liquid biopsies in patients who progress on ALK inhibitors. The importance was not previously observed as much in patients who progress on first generation crizotinib, since many patients will resp...
Are there still clinical situations in which you deliberately treat patients with a DOAC besides apixaban?
Thank you for your question. Apixaban has been my preferred agent for a long time for patients requiring therapeutic anticoagulation. Apixaban’s lower bleeding risk was shown prior to and now has additional evidence to support this with the COBRRA trial. The risk is also ameliorated by the safety in...
Would you ever consider stopping immunotherapy in a patient with metastatic melanoma after achieving a good response?
Yes, I would consider stopping immunotherapy in a patient with metastatic melanoma after achieving a good response.Data of 655 melanoma patients treated in pembrolizumab phase 1 KEYNOTE-001 study has shown 95 patients (14.5%) achieved CR after a median follow-up of 32 months. Treatment was discontin...
For a patient with metastatic colon cancer who tested positive for MSI (i.e. MLH1 hypermethylation etc) and BRAF mutation, what would be your preferred choice in the second line setting?
Approximately 15% of colorectal carcinomas demonstrate mismatch repair deficiency. The majority of these are MLH1/PMS2 deficient due to MLH1 promoter hypermethylation (MLH1ph). BRAF V600E mutations occur in approximately 50% of colorectal carcinomas with MLH1ph. The role of immunotherapy in patients...