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# Progressive Multifocal Leukoencephalopathy Trials Workshop
- URL: https://www.fdaweb.com/progressive-multifocal-leukoencephalopathy-trials-workshop/
- Published: 2021-06-17T12:00:00.000Z
- Updated: 2026-09-14T17:03:57.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5149557

*Federal Register* notice: FDA has announced a 9/21 public workshop entitled “Considerations for Progressive Multifocal Leukoencephalopathy Clinical Trial Designs.” The workshop is intended to discuss the challenges and clinical trial design considerations for developing therapeutic products for treating progressive multifocal leukoencephalopathy. To view the notice, click [here](https://public-inspection.federalregister.gov/2021-12967.pdf?ref=fdaweb.com).