# Efficacy
Keywords: PLEGRIDY, RRMS, efficacy, ADVANCE study, NEDA, MRI, ARR, disability progression

> This page provides detailed information about the efficacy of PLEGRIDY for treating Relapsing Remitting Multiple Sclerosis (RRMS), including clinical trial results, long-term outcomes, and comparative data.

## Details
- [Clinical and Radiological Pivotal Data](#pivotaldata): Overview of significant clinical and neuroradiological results from year 1 of the ADVANCE study.
- [NEDA Data](#neda): Information on the percentage of patients achieving No Evidence of Disease Activity (NEDA) over 4 years.
- [Comparison Data](#comparison): Comparative analysis of PLEGRIDY's efficacy versus glatiramer acetate in terms of relapse rate and disability progression.