Medical Oncology
Physician insights on cancer treatment protocols, immunotherapy, targeted therapies, and clinical trial updates.
Recent Discussions
How do you determine which systemic therapy to recommend in the 2nd line setting for metastatic, PD-L1 NEGATIVE cervical cancer?
This is a very difficult situation because none of the available options are effective. Clinical trial or possibly pembrolizumab on compassion-care usage.
What is your approach for endocrine therapy in young women (<35 years old) with HR+/HER2+ breast CA with residual disease after TCHP who will start adjuvant T-DM1?
She would be given the options of tamoxifen or ovarian suppression with an AI for five years and then a discussion at that time based on where the data goes in that time. Tamoxifen would have fewer side effects but less effective reduction of PFS per extrapolation from the SOFT/TEXT trials. Ovarian ...
In a young patient with recurrent low-grade glioma s/p gross total resection, is there any role for further observation instead of radiation and chemotherapy?
As simple as this question seems to be on the surface, it is actually a very difficult clinical scenario to opine with certainty, primarily because of a lack of data. So, let us address this with each option in mind, weighing the pros and cons: Observation: We do know that in resected patients, radi...
Should 3 years of adjuvant osimertinib be the standard of care for resected Stage IB-IIIA EGFRm NSCLC?
Since my initial response to this question, the ADAURA study has been fully published (NEJM 383:1711, 2020) and the FDA has approved osimertinib as adjuvant therapy for people with resected NSCLC harboring an EGFR sensitizing mutation. However, neither of these events has altered my opinion that des...
How do you decide between checkpoint monotherapy versus chemo-immunotherapy approach for patients with PD-L1 High (>50%) NSCLC?
At this point, there are no prospective trials comparing checkpoint monotherapy and chemo-immunotherapy for patients with PD-L1 high NSCLC. The ongoing prospective INSIGNA trial will answer this question. If one does a cross trial comparison of pembrolizumab for patients with PD-L1 of >50% and chemo...
How do you stage patients with testicular cancer who may have CSIS disease?
This always looks easy, but you have to be careful and have patience. Some mistakes occur because providers use the PRE-orchiectomy markers or immediate post-orchiectomy markers before they have a chance to normalize. Also, providers sometimes react to low abnormal stable markers which often are fal...
Is pembrolizumab considered standard of care in the 2nd line treatment of recurrent cervical cancer?
The phase II Keynote-158 indication is based on objective response of 14% in patients with PD-L1+ tumors. The US FDA approval is accelerated approval meaning that there needs to be a confirmatory trial - this is Keynote 826 which is ongoing.
When should you use single-fraction radiotherapy for spinal cord compression?
The SCORAD III trial is practice changing. But I do NOT plan to treat ALL patients with spinal cord compression with a single fraction of 8 Gy now. Here is why: SCORAD III is extremely important new study for the management of metastatic epidural spinal cord compression (MESCC) for patients with sho...
After WBRT, what systemic therapy would you favor for maximal CNS penetrance in a patient with triple negative metastatic breast cancer and multifocal CNS disease?
With patients such as this, I would usually recommend the following: 1. Genomic testing (Strata, Foundation 1, etc.) to look for a mutation that might be targetable with a TKI that crosses the blood brain barrier well 2. Re-testing of the CNS cytology for HER2, given that we do have multiple drugs w...
What is your strategy for ovarian suppression if unable to achieve goal estradiol levels with leuprolide 3.75mg monthly dose?
Monthly therapy rarely fails to induce adequate suppression. The choice of options will depend on whether the patient planned permanent or only temporary suppression AND the risk of recurrence of the cancer. If she will accept permanent suppression and has high risk disease, oopherectomy would be th...