Medical Oncology
Physician insights on cancer treatment protocols, immunotherapy, targeted therapies, and clinical trial updates.
Recent Discussions
Are there known biomarkers predictive of IRAEs?
While there are no FDA-approved biomarkers predictive of iAEs, there is a growing body of preclinic and retrospective research trying to address this important question. Eosinophilia may be a potentially useful biomarker and this is supported by several retrospective studies 1,2. It is intriguing th...
Would you give checkpoint inhibitor therapy to a cancer patient with known dermatomyositis given the association of checkpoint inhibitor associated myocarditis, myasthenia gravis, and myositis?
I think the dermatomyositis could be more paraneoplastic that would actually benefit from controlling the cancer with ICI. I would give the treatment but I would carefully follow-up the patient for any irAEs. I will also document the rheumatological assessment, CPK, and myositis panel before startin...
How do you discern whether elevated liver enzymes are from immunotherapy versus chemotherapy when a patient is on combination chemo/immunotherapy?
There is no consensus on the best method for distinguishing the cause of elevated liver enzymes in patients being treated with ICPi's when combined with various chemotherapies. Important considerations include time of onset, severity, and presence of hepatobiliary metastases. Hepatotoxicity from ICP...
Which molecular biomarkers do you favor to risk stratify patients (without CV risk factors) before and after undergoing treatment with cardiotoxic cancer treatments?
In general, troponin, NTproBNP or BNP, and lipid panel are the main biomarkers I use for CV risk stratification prior to cancer therapy. Baseline troponin and NTproBNP are primarily useful for cancer therapies that may cause cardiomyopathy or myocarditis (i.e. anthracyclines, anti-HER2 therapies, VE...
Would you consider starting an ACE inhibitor on a patient without CVD or heart failure prior to initiation of anthracyclines to reduce the overall risk of myocardial toxicity?
Even though the patient does not have CVD or heart failure history, there are still factors to consider if they are at higher risk for anthracycline cardiac toxicity: Lower EF at baseline, significant valvular heart disease, prehypertension/hypertension, diabetes, obesity, advanced age, any subclini...
Among asymptomatic patients with structurally normal TTE undergoing treatment with anthracyclines or alkylating agents that develop mildly elevated BNP and/or troponin levels, would you consider referring them for cardiac MRI to evaluate for subclinical cardiotoxicity?
If TTE images are adequate and the echo is entirely normal, but BNP and/or troponin levels are mildly elevated after anthracyclines or alkylating agents, differential diagnosis includes HFPEF, ischemia, or subclinical cardiotoxicity. If Echo shows unexplained significant LVH, CMR is reasonable to ru...
Is cross reactivity low enough to try cisplatin as an alternative for patients who experience hypersensitivity reaction to carboplatin?
A couple of preparatory comments. First, there is a reasonable review recently published about platinum sensitivity and management questions related to this (Makrilia et al., PMID 20886011). The second comment is that platinum sensitivity reactions can be quite severe, and are relatively rare with <...
How would you manage a patient with epithelioid hemangioendothelioma?
This is typically an indolent tumor, often with multi organ system involvement. Starting point mostly is close observation at 3 mo intervals to get a feel for the pace of growth, and extend intervals as appropriate. For bulky liver disease, one could consider liver directed therapies (ablation/embol...
How would you approach an early stage II unfavorable Hodgkins lymphoma following 6 cycles ABVD with persistent Deauville 5 with negative biopsy?
This is an active disease and should be treated accordingly. I would not wait. RT is certainly option number one now, but the patient has a considerable risk for recurrence even after RT, since he/she has Hodgkin‘s that is not responding adequately to treatment. Continuing with ABVD in a patient who...
When do you refer patients for germline testing when somatic tumor testing is negative for actionable mutations?
Somatic (tumor-only) testing should not be used to conclusively rule in or rule out the presence of a germline pathogenic/likely pathogenic alteration. While most germline sequence alterations (point mutations, small insertions/deletions) will be detected on tumor-only testing, this may miss chromos...