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Re-Analysis of Data from Unsolved Rare Disease Patients within the Framework of the European Rare Disease Research Alliance (ERDERA)

Re-Analysis of Data from Unsolved Rare Disease Patients within the Framework of the European Rare Disease Research Alliance (ERDERA) - REDRA

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00039042
Enrollment
5000
Registered
2026-02-03
Start date
2026-01-18
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rare Diseases with unresolved diagnosis

Interventions

Group 1: Retrospective analysis of rare disease patients with unresolved or unclear diagnoses.

Sponsors

Universitätsklinikum Tübingen, Institut für medizinische Genetik und angewandte Genomik
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with rare diseases who, despite extensive diagnostic evaluations, have not received a diagnosis, and, where applicable, their immediate family members.

Exclusion criteria

Exclusion criteria: Patients without a rare disease or with an established (confirmed) diagnosis.

Design outcomes

Primary

MeasureTime frame
Increased diagnostic rate within the study population. Defined as the proportion of clearly resolved cases (diagnostically solved) relative to the total number of enrolled patients [Proportion in %].

Secondary

MeasureTime frame
Shortened time to diagnosis, defined as the period between a patient’s first medical presentation for the suspected rare disease and either the establishment of a molecular diagnosis or enrolment into systematic research when a diagnosis is not yet possible [Time in months]. Increased number of newly identified disease genes. Defined as the absolute number of gene-disease associations newly described or confirmed within the framework of the study [n].

Countries

Germany

Contacts

Public ContactHolm Graessner

Universitätsklinikum Tübingen, Institut für medizinische Genetik und angewandte Genomik

holm.graessner@med.uni-tuebingen.de+49-(0)7071 29-72330

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Apr 4, 2026