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OBSERVE: Biomarkers in Individuals at Risk for Prion Disease

OBSERVE: Biomarkers in Individuals at Risk for Prion Disease

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05124392
Enrollment
150
Registered
2021-11-18
Start date
2017-12-01
Completion date
2027-06-01
Last updated
2026-08-13

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

Conditions

CJD (Creutzfeldt Jakob Disease), Familial Fatal Insomnia, FFI, GSS, Prion Diseases

Brief summary

We are doing this research to identify biomarkers in individuals who are at-risk for familial prion disease. We hope to use these biomarkers to predict timing of disease onset in pre-symptomatic individuals and to guide the direction of future clinical trials.

Detailed description

This study aims to measure biomarkers longitudinally in individuals at risk of developing genetic prion disease to identify clinical assays and molecular markers that: can inform our understanding of pre-clinical pathology, predict timing of disease onset in pre-symptomatic individuals, and enable development and evaluation of novel treatment efficacy in pre-symptomatic or early symptomatic individuals. Participation in the study involves annual visits to the clinic site in Charlestown, MA. Study visits include: a medical exam, blood draws, cognitive tests and questionnaires, and spinal fluid collection. Travel support and stipend is provided for interested individuals.

Interventions

None listed

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER
Broad Institute of MIT and Harvard
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

1. Aged 18 - 85, 2. One of the following: * a. Known carrier of pathogenic PRNP mutation * b. History of probable or definite prion disease in biological parent and other family members * c. Non-carrier family members and/or unrelated previously enrolled negative control volunteers 3. Medically safe to undergo blood draw, lumbar puncture and cognitive testing, 4. Adequate visual and auditory acuity to complete cognitive testing, 5. Fluent in English, 6. At least 5 years of education, 7. Capable of providing informed consent and following study procedures,

Exclusion criteria

1. Any CNS disease other than asymptomatic or early prion disease, such as clinical stroke, brain tumor, multiple sclerosis, significant head trauma with persistent neurological or neurocognitive deficits, Alzheimer's disease, Parkinson's disease, frontotemporal lobar degeneration or other known neurodegenerative disease, 2. History of alcohol or other substance abuse or dependence within the past two years, 3. Any significant systemic illness or unstable medical condition or pregnancy that could represent safety risk or affect participation in the study, 4. Coagulopathy or anti-coagulant therapy (such as Coumadin) increasing the risk for phlebotomy or lumbar puncture resulting in PT/PTT and INR within 1.5 standard deviation over the upper normal limit.

Design outcomes

Primary

MeasureTime frameDescription
CSF YKL401 yearLevels of YKL40
CSF Tau1 yearLevels of Tau
CSF Nfl1 yearLevels of Nfl
CSF GFAP1 yearLevels of GFAP
CSF Prion protein1 yearLevels of Prion protein
CSF Prion biomarkers1 yearRT-QuIC levels
Cognition1 yearNIH Toolbox measures of cognition

Countries

United States

Contacts

CONTACTSophia D'Alessandro
MGHPrionStudy@partners.org617-726-4026
CONTACTAlison McManus, DNP
ajmcmanus@mgh.harvard.edu
PRINCIPAL_INVESTIGATORSteven E Arnold, MD

MGH

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 14, 2026