Tailored antisense oligonucleotides for ultrarare CNS diseases: An experience-based best practice framework for individual patient evaluation

1:1
Outside traditional drug development pathways, clinicians and scientists face the challenge of systematically evaluating whether individual patients with severe ultrarare diseases might be eligible for and potentially benefit from individualized mutation-specific RNA therapies.

Individualized mutation-specific RNA therapies offer promise, in particular, for individuals with ultrarare neurological diseases that affect only few families or even single patients worldwide. Outside traditional drug development pathways, however, clinicians and scientists face the challenge of systematically evaluating whether individual patients with severe ultrarare diseases might be eligible for and potentially benefit from such approaches.

This complex evaluation involves biological, clinical, psychological, and ethical aspects. Based on the experience of the 1 Mutation 1 Medicine (1M1M) consortium, we here propose a best practice framework that enables the systematic evaluation of individual patients for tailored genomic therapies, using transparent criteria to comprehensively assess each individual’s benefit-risk balance.

By example of individually tailored antisense oligonucleotide approaches in neurology, this framework takes into account characteristics of the (1) underlying variant, (2) underlying disease, and (3) individual patient. It thereby allows a systematic, balanced, fact-based evaluation that appreciates the full complexity and preferences of each individual patient, performed by a multi-stakeholder treatment board.

This operational framework will thus pave the way for systematic, rational patient-centric evaluation and decision-making in the rapidly evolving field of individualized “n-of-1” precision genomic medicine in clinical neurology.

blank

publication

Year of publication

2025

Source

Science DIrect

Author

Rebecca Schüle, Holm Graessner, Annemieke Aartsma-Rus, Willeke M.C. van Roon-Mom, Matthis Synofzik

You might also be interested in

On 3–4 June, EURORDIS–Rare Diseases Europe and Orphanet convened the rare disease community at ECRD 2026 in Prague around a shared call for coordinated European action, including the forthcoming European Blueprint for Rare Diseases.
The 2026 Open Academy x ERDERA Schools in Barcelona brought patient advocates and early-career researchers together for practical training on medicines development, translational research and meaningful participation in rare disease research.
The European Rare Diseases Research Alliance (ERDERA), together with the European Reference Networks (ERNs), provides the missing operational layer required to implement the European Biotech Act across the full innovation pathway —from discovery to patient access.
ERDERA will launch its Clinical Trial Call 2026 (ECTC) on 1 July 2026, supporting multinational, GCP‑compliant early‑phase interventional clinical trials in rare diseases.