Clinical trial Recruiting at 1 site Observational Ages 50 and up

Observing the natural history of genetic Creutzfeldt-Jakob Disease

Official title: A Natural History Study of Preclinical Genetic Creutzfeldt-Jakob Disease (CJD)

Run by Tel-Aviv Sourasky Medical Center · NCT05746715 · Data updated 2026-11-12

This study is trying to learn more about genetic Creutzfeldt-Jakob Disease by looking at patients and their family members who carry a specific gene mutation to see how the disease develops and what might trigger symptoms.

Quick facts

Study typeObservational
Ages50 Years and up
SexAll
Enrollment126 (estimated)
SponsorTel-Aviv Sourasky Medical Center
Government
Locations1 site (Tel Aviv)
StatusRecruiting
StartedJune 1, 2022
Main results expectedDecember 30, 2028
Study endsMay 30, 2029
Registry record updatedFebruary 28, 2023
Trial IDNCT05746715 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include first-degree relatives of E200K gCJD patients who are 50 years or older and willing to undergo genetic testing.

Probably not a fit

Patients with a clinical diagnosis of CJD or other significant neurological disorders may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study focuses on understanding the natural history of genetic Creutzfeldt-Jakob Disease (gCJD) by examining patients diagnosed with gCJD and their first-degree relatives who carry the E200K mutation in the PRNP gene. It aims to identify biological markers of preclinical CJD and risk factors for the onset of symptoms. The study will involve both cross-sectional and longitudinal assessments to gather comprehensive data on the progression of the disease and its genetic influences.

Why it matters

Potential benefit: If successful, this study could lead to earlier detection and better understanding of genetic CJD, potentially improving patient outcomes.

How similar studies have gone: While studies on prion diseases exist, this specific focus on the E200K mutation and its preclinical markers is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* First--degree relative of an E200K gCJD patient.
* Age 50 years or older at baseline.
* Willingness to undergo genetic testing.
* Ability to provide written informed consent under GCP, ICH, and local regulations.
* Willingness and ability to comply with scheduled visits, required study procedures, and laboratory tests.

Exclusion Criteria:

* a clinical diagnosis of CJD

  * Any other medical or psychiatric condition or laboratory abnormality, which in the opinion of the investigator might preclude participation.
  * Previously obtained MRI scan with evidence of clinically significant neurological disorder other than CJD.
  * Current anticoagulant treatment (e.g Non-vitamin K Antagonist Oral Anticoagulants (NOACs), Warfarin, Low Molecular weight Heparin) that might preclude safe completion of LP.
  * Conditions that preclude the safe performance of LP, such as severe lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  * Conditions that preclude the safe performance of MRI scannings such as subjects who have a pacemaker, aneurysm clips, artificial heart valves, ear implants, metal fragments or foreign objects in the eyes, skin, or body, or any other known contra-indication for MRI.
  * Active malignant disease.

Where it's running

  • Cognitive Neurology Unit
    Tel Aviv, Israel
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.