Mitochondrial Diseases - Long-read Genome and Transcriptome Sequencing in Cases Unresolved After Short-read Genomics

March 25, 2025 updated by: University Hospital Tuebingen
The MiDiSeq project will enroll 20 unresolved index patients with suspected mitochondrial disease prioritized for genomic analysis.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

In the MiDiSeq (monocentric, prospective, open-label diagnostic) project, patients with suspected mitochondrial disease prioritized for i) high a priori probability for a genetic basis (e.g. positive family history) as well as availability of (ii) fibroblast cell lines with a biochemically defined phenotype, (iii) parental samples, (iv) short read whole genome and transcriptome datasets and (v) optional additional metabolomics and proteomics data.

The following questions will be leading the project:

i) to systematically benchmark different sequencing technologies to detect genetic and epigenetic variation and their impact on gene regulation.

(ii) to further develop algorithms for integrative analyses of different 'omics datasets.

(iii) to expand the analysis from coding Single-Nucleotide Variants (SNVs) and regulatory mutations to structural variants (SVs), repeat expansions and contractions, low complexity regions and epigenetic signatures.

(iv) to identify novel alterations and disease mechanisms. (v) to gain fundamental new insights into disease mechanisms and cellular biology.

(vi) to improve genetic diagnostics of future rare disease patients and to evaluate personalized therapeutic options.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
      • Tübingen, Germany, 72076
        • University Hospital Tübingen

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Unclear diagnosis Suspected genetic cause of the disease

Exclusion Criteria:

Missing informed consent of the patient/ legal guardian

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Mitochondrial disease
Unresolved index patients with suspected mitochondrial disease
Genetic: Next Generation Sequencing (NGS)
Determining the nucleic acid sequence

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
(Epi)Genetic variation
Time Frame: 1 Day
Number of (Epi)Genetic variation
1 Day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital Tuebingen

Investigators

  • Principal Investigator: Tobias Haack, Dr., University Hospital Tübingen

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 1, 2019

Primary Completion (Actual)

February 1, 2024

Study Completion (Actual)

February 1, 2025

Study Registration Dates

First Submitted

May 22, 2019

First Submitted That Met QC Criteria

May 22, 2019

First Posted (Actual)

May 24, 2019

Study Record Updates

Last Update Posted (Actual)

March 30, 2025

Last Update Submitted That Met QC Criteria

March 25, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MiDiSeq

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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