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LD BRAC

Leukodystrophy Biospecimen Review Access Committee

The Leukodystrophy Biospecimen Resource Access Committee (LD BRAC) reviews applications for biospecimens collected through The Global Leukodystrophy Initiative Clinical Trials Network (GLIA-CTN). The biospecimens represent a variety of leukodystrophies, including Aicardi–Goutières syndrome (AGS), Metachromatic Leukodystrophy (MLD), Pelizaeus Merzbacher Disease (PMD), and more.

Submission and Review Dates
Submission and Review Dates
Date SubmittedReviewed by
November 5, 2025 - January 6, 2026February 9, 2026
January 7, 2026 - March 10, 2026April 13, 2026
March 11, 2026 - May 5, 2026June 8, 2026
May 6, 2026 - July 7, 2026August 10, 2026
July 8, 2026 - September 8, 2026October 12, 2026
September 9, 2026 - November 10, 2026December 14, 2026
November 11, 2026 - January 5, 2027February 8, 2027

The BRAC committee will assess the applications based on experimental rationale, feasibility/reproducibility of the assays, expertise of the investigator, availability of the institutional resources to support the study, and the statistical analysis of the number of samples required for the hypothesis testing.  Investigators will be notified by email the outcome of the review (i.e. approve, approve upon revisions, or deny) within a week after the review meeting.  Summary statements are released 2-3 weeks after review.  For applications that were ‘approved upon revisions’, investigators will be notified about concerns that would need to be addressed before the application could move forward.  Please note that the LD BRAC does not provide funding.

If sample access is approved by the LD BRAC, the two possible outcomes are:

  1. If the study has funding, the samples are distributed to the investigator following a virtual meeting to introduce the sample distribution process (“on-boarding”) and after fulfilment by the investigator of additional requirements specified by BioSEND (i.e. MTA, Data Use Agreement, data analysis and sharing plan). For questions, please contact Rebecca Price, Ph.D.
  2. If the investigator has yet to obtain funding for the study, the BRAC will issue a letter to the applicant documenting provisional access to the samples requested.  This letter can be used to support an application for funding opportunities from the NIH or other organizations.  Conditional approvals will be valid for a period of up to 12 months.

To facilitate scientific rigor and reproducibility, samples for approved applications are shipped blinded (each aliquot is labeled with a Sample ID). The BioSEND team will work with investigators during the onboarding call to create box designs to facilitate blinded analyses. Investigators must return their assay analyses into an appropriate data repository prior to being unblinded by BioSEND.

Please note that your application will be shared with BRAC members, NINDS program staff, and BioSEND staff. Access and review of all applications is guided ethical research standards, as described in the Confidentiality Agreement.

Coming Soon!

Learn more about the review process
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