When and how do you deviate from efgartigimod (Vyvgart) dosing from the drug label recommendation of weekly infusions for four weeks in patients with myasthenia gravis?  

In the landmark ADAPT study, efgartigimod vs placebo was given in patients with MG initially as weekly infusions x4. The timing of the second and subsequent cycles was determined on a case-by-case basis, based on the patient's clinical response and serial measurement of quantitative MG parameters (M...