Skip to content

A Study of LY3857210 in Healthy Participants

An Adaptive Design, Phase 1, Open-label Study to Investigate Receptor Occupancy in Brain After Single Oral Doses of LY3857210 as Measured by Positron Emission Tomography (PET) With the Radioligand [18F]-LY3818850 in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05292040
Enrollment
10
Registered
2022-03-23
Start date
2022-03-17
Completion date
2022-12-14
Last updated
2023-03-01

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

Conditions

Healthy

Brief summary

The main purpose of this study is to evaluate the presence of study drug LY3857210 in the brain measured by positron emission tomography (PET) with the radioligand \[18F\]-LY3818850 in healthy participants. The safety and tolerability of LY3857210 will also be evaluated. The study will last up to approximately 6 weeks for each participant and may include up to four visits to the study center.

Interventions

Administered orally.

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Overtly healthy male or female participants as determined by medical evaluation * Have body weight ≥ 45 kilograms (kg) and body mass index (BMI) within the range 18.5 to 32.0 kilograms per square meter (kg/m²) (inclusive) * Are males and in agreement to follow contraceptive requirements, or women of non-child-bearing potential

Exclusion criteria

* Have contraindications to undergoing magnetic resonance imaging (MRI) examination including but not limited to implants such as implanted cardiac pacemakers or defibrillators, insulin pumps, cochlear implants, metallic ocular foreign body, implanted neural stimulators, CNS aneurysm clips, and other medical implants that have not been certified for head MRI * Have clinically significant findings on the screening MRI scan, as judged by the investigator * Suffer from claustrophobia and would be unable to tolerate the confined spaces of MRI or PET camera

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in brain receptor occupancy (RO) of LY3857210 measured by [18F]-LY3818850 PET scanBaseline through study completion, up to approximately 6 weeksChange from baseline in brain RO of LY3857210 measured by \[18F\]-LY3818850 PET scan

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026