Evidence Summary

Oral ribose supplementation in dystroglycanopathy: A single case study

A six-month oral D-ribose study reported in one adult with FKRP-related LGMD2I.

case reportTherapy DevelopmentMonitoringFamilies

Citation: Thewissen RMJ, Post MA, Maas DM, et al. Oral ribose supplementation in dystroglycanopathy: A single case study. JIMD Rep. 2024;65(3):171-181.

Key Takeaway

This is a single-adult case without a control group. It establishes no pediatric dose or pediatric safety, and the paper reported no clear objective improvement in clinical or patient-reported outcome measures.

Main findings

  • Two adults entered the study, but one was excluded from analysis for noncompliance, leaving one analyzed participant.
  • The paper reported changes in biochemical measures and subjective symptoms during supplementation.
  • Strength measurements were variable, and the authors reported no clear improvement across clinical and patient-reported outcome measures.

Practical relevance

  • Provides a hypothesis-generating human report that can inform future research questions.
  • It should not be used to select a supplement, calculate a dose, define monitoring, or infer benefit for a child or another adult.

Limitations and cautions

  • One analyzed adult, no control group, no blinding, a short observation period, and day-to-day variability prevent causal conclusions.
  • The participant had concurrent care and medication changes, and biochemical change is not proof of clinical benefit.
  • Adult tolerability in this case does not establish long-term safety, pediatric safety, or a pediatric dose.

Primary Sources

Direct links for verification

PubMed Central full text

Full text used to check the adult-only population, design, outcomes, ethics, conflict statement, and limitations.

Back to Paper Library