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801H research

Efficacy and safety of [11C]BIIB021 as a PET imaging ligand for molecular chaperone in the brain - 801H

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs031240528
Enrollment
20
Registered
2024-12-06
Start date
2025-02-04
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

synucleinopathy

Interventions

Administration of [11C]BIIB021 injection, PET scan, Head MRI scan, Blood tests, Cognitive function tests (only in Step2)

Sponsors

Kimura Yasuyuki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. A person whose age is 20 years or older but under 40 at the time of obtaining consent. Gender does not matter. 2. A person who applies voluntarily and is judged by the principal investigator or co-investigator to be capable of understanding the content of the explanatory document.

Exclusion criteria

Exclusion criteria: 1. A person who has a disease or medical history that is judged by the investigators to affect the PET scan. 2. A person who, during a head MRI scan, is found to have findings suspected of affecting the PET scan (such as a history of clear cerebral infarction or cerebral hemorrhage). 3. A person who exhibits obvious abnormalities in the physical examination, blood/urine tests, or cognitive function tests (only for step 2) during eligibility evaluation, and is judged by the investigator(s) to either affect the PET scan or be at a higher-than-usual risk of health harm from undergoing the PET scan. 4. A person who is judged to be unable to remain still during the examination. 5. A person with internal magnetic metal (including tattoos, cosmetic tattoos, pacemakers, etc.). 6. A person with severe claustrophobia. 7. A person with a history of drug allergies. 8. A person who is pregnant, may be pregnant, or is currently breastfeeding. 9. A person who participated in another interventional clinical study and received the intervention within one year prior to the time of obtaining consent. 10. Any other person judged by the investigators to be unsuitable as a subject for this study.

Design outcomes

Primary

MeasureTime frame
1. Clinical safety of the [11C]BIIB021 injection 2. Systemic kinetics of [11C]BIIB021 3. Accuracy of measuring the distribution volume of [11C]BIIB021

Secondary

MeasureTime frame
1. Effective dose per unit of radioactivity administered for [11C]BIIB021 injection 2. Gender differences in the distribution volume of [11C]BIIB021 3. Relationship between the distribution volume of [11C]BIIB021 and psychological measures

Contacts

Public ContactYasuyuki Kimura

National Center for Geriatrics and Gerontology

yazkim@ncgg.go.jp+81-562-46-2311

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026