Rheumatology
Clinical discussions on autoimmune diseases, biologic therapies, vasculitis, and musculoskeletal conditions.
Recent Discussions
What is your approach to a patient with undetectable MMR titers checked prior to or during immunosuppression and a history of MMR vaccination in childhood?
MMR titers are good correlates of protection. If any titer is undetectable it could be one of these situations: Primary failure. The components of the MMR have different efficacy. Two doses of appropriately given MMR will have 96+% against measles, but only 88% for mumps. Thus 1 in 10 appropriately...
In the treatment of osteoarthritis with low-dose radiation therapy is there data to support the claim that LDRT does not limit or preclude later orthopedic surgery?
At LDRT doses, the biological effects are anti-inflammatory and immunomodulatory rather than cytotoxic or fibrogenic, and there is no evidence of vascular injury, impaired cellular proliferation, or tissue destruction. Animal models and cellular studies provide robust evidence that LDRT at OA releva...
How do you approach management of new onset ILD in a patient with RA who is otherwise well controlled on methotrexate or leflunomide?
We do not have any randomized controlled trials for DMARDs in RA-ILD. Most of the data is case series or retrospective analysis. Nonetheless, we can use current data to at least make clinical decisions until we receive more direction from high-quality clinical trials. We now know that in general met...
How do you optimize retinopathy screening schedules for patients on hydroxychloroquine while also prioritizing cost-effectiveness?
I'll approach this from the cost-effectiveness standpoint as I agree with Drs. @Dr. First Last and @Dr. First Last on their excellent points.Patients with SLE have remarkably high costs when you add up copays, medications, imaging studies, travel, missing work, etc. Anything we can do to help reduce...
Do you favor obinutuzumab over voclosporin for patients with lupus nephritis and significant proteinuria and a history of non-adherence to medications?
Non-adherence to medications is a common issue in lupus patients, but this can be even more of a concern in lupus nephritis, where the pill burden for patients can be so high. I usually prefer to use intravenous medications for patients who have had difficulty adhering to oral medications in the pas...
Do you check mycophenolate levels in patients prescribed mycophenolate who present with a lupus nephritis flare?
In general, I tend to shoot for an induction dose (3 grams) if I am using Cellcept with steroids for a flare, unless I am doing multitarget therapy or there are side effects such as GI symptoms or cytopenias. In those cases, I lower the dose to 2 grams (1000 mg BID). If there is concern for unsatisf...
How would you treat tophaceous gout after a course of pegloticase infusions if the patient has contraindications or intolerance to allopurinol, febuxostat, and probenecid?
Difficult question. I think there are a number of issues to address. What is a "course of pegloticase?" What are the patient's contraindications to treatment? How did intolerance to prior oral uric acid-lowering therapies manifest Was pegltoicase started because of "unresponsiveness to oral ULT" an...
Are there particular subsets of AAV patients in which avacopan is more effective?
The following answer was jointly drafted by Dr. Peter Merkel and Dr. David Jayne:Patients in the ADVOCATE trial were stratified at entry according to time of diagnosis (new/relapsing), diagnosis (GPA/MPA), ANCA serotype (PR3/MPO), and background immunosuppressive (cyclophosphamide/rituximab) with re...
Should the use of avacopan be limited to those patients at increased risk of steroid toxicity given the anticipated high cost of this medication?
Once Avacopan is available for clinical use in the treatment of patients with AAV, providers will need to carefully weigh risks and benefits of the medication while considering other factors including cost.The ADVOCATE trial used a novel glucocorticoid toxicity index that captures common GC-related ...
How do you approach the decision to initiate or continue bisphosphonate therapy in an older patient with significant esophageal disease or swallowing dysfunction?
Unless there are indications to turn first to non-bisphosphonate therapies, I would first consider whether the patient would be a candidate for IV bisphosphonate therapy. Many patients, even those without esophageal disease or dysphagia, find the convenience of an annual outpatient infusion appealin...