Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 55 to 90

Measuring brain fibrin levels in Alzheimer's disease

Official title: Assess the Brain Levels of Fibrin in Alzheimer's Disease and Its Related Dementias Subjects Using 64Cu-FBP8 PET

Run by Massachusetts General Hospital · NCT05336695 · Data updated 2026-11-12

This study is testing a new imaging technique to see how levels of a protein called fibrin in the brain differ among people with Alzheimer's disease and those with normal thinking skills.

More Alzheimer Disease trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages55 Years to 90 Years
SexAll
Enrollment30 (estimated)
SponsorMassachusetts General Hospital
Academic / other
Drugs / interventionsradiation
Locations1 site (Boston, Massachusetts)
StatusRecruiting
StartedMarch 29, 2022
Main results expectedSeptember 28, 2026
Study endsSeptember 28, 2026
Registry record updatedOctober 30, 2025
Trial IDNCT05336695 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 55 to 90, both cognitively normal and those clinically diagnosed with Alzheimer's disease or related dementias.

Probably not a fit

Patients with contraindications for MR imaging or those with preexisting medical conditions that may complicate participation 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 project aims to quantify brain fibrin content using 64Cu-FBP8-PET imaging in individuals with varying cognitive statuses, from healthy to those diagnosed with Alzheimer's disease and related dementias (ADRD). The study will explore regional differences in fibrin levels, which may play a role in the pathophysiology of ADRD. Approximately 30 participants will be involved, and the study will utilize a novel imaging technique that is not yet FDA-approved. The findings could enhance our understanding of the relationship between fibrin and ADRD.

Why it matters

Potential benefit: If successful, this study could provide insights into the role of fibrin in Alzheimer's disease, potentially leading to new therapeutic targets.

How similar studies have gone: While the approach of quantifying brain fibrin in vivo is novel, related studies have shown promise in understanding the role of fibrin in other conditions.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age between 55 and 90 years
* Ability to provide informed consent
* Specific to healthy volunteers: no history of ADRD
* Specific to ADRD subjects: clinical diagnosis of AD - either amnestic or atypical, clinical severity ranging from MCI to moderate dementia (CDR 0.5-2.0), MMSE score greater than or equal to 15 and/or MOCA greater than or equal to 12
* Specific to BAnD subjects: referred through the Brain Aging and Dementia (BAnD) research registry

Exclusion Criteria:

* MR contraindications such as: electrical implants such as cardiac pacemakers or perfusion pumps; ferromagnetic implants such as aneurysm clips, surgical clips, prostheses, artificial hearts, valves with steel parts, metal fragments, shrapnel, tattoos near the eye, or steel implants, ferromagnetic objects such as jewelry or metal clips in clothing
* Preexisting medical conditions including a likelihood of developing seizures or claustrophobic reactions, and any greater than normal potential for cardiac arrest
* Subjects whose estimated glomerular filtration rate (eGFR) \< 60 mL/min will be excluded from receiving the gadolinium-based contrast agent
* Research-related radiation exposure exceeding current Massachusetts General Hospital (MGH) Radiology Department guidelines (i.e. 50 millisievert in the prior 12 months)
* 3\. In line with published MGH IRB guidelines for pregnancy must be ruled out by urine ß-HCG if answers to screening questions suggest that pregnancy is possible and if female participants are premenopausal and of child-bearing age. Subjects will not be able to enroll if they are breastfeeding.

Where it's running

  • Massachusetts General Hospital
    Boston, Massachusetts, United States
    Recruiting

Study contacts

  • Principal investigator: Ciprian Catana, MD, PhD — Massachusetts General Hospital
  • Study coordinator: Ciprian Catana, MD, PhD
  • Email: ccatana@mgh.harvard.edu
  • Phone: 617-643-4885

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.