Patient Experiences with Relapsing–Remitting and Primary Progressive Multiple Sclerosis: Development of a Conceptual Model to Inform Clinical Outcome Assessment Evaluation

This study highlights the multidimensional burden of living with RRMS and PPMS. A provisional conceptual model was developed, harmonizing the TLR and interview findings. This conceptual model may be used to promote a better understanding of the patient experience of RRMS and PPMS and to evaluate the content validity of COAs during the development of new drug treatments.