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Healthy VolunteersPhase 1Ph1PET UK StdyNCT06300580

Study of Oral ABBV-932 Capsules to Evaluate Dopamine D2 and D3 Receptor Occupancy in Brain in Adult Healthy Volunteers

A Phase 1 study testing ABBV-932 in people with Healthy Volunteers, run by AbbVie at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The main objective of this study is to evaluate the dopamine D2 and D3 receptor occupancy in the brain as measured by PET with radiotracer [11C]-(+)-PHNO up to 14 days of once-daily oral doses of ABBV-932 in healthy subjects. ABBV-932 is a dopamine D3 receptor-preferring D3/D2 receptor partial agonist. Read more about this study

Who is it for?
Ages 23 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
ABBV-932
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited Kingdom
Study dates
21 Aug 2024to 26 May 2025
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 23 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Body Mass Index (BMI) is >= 18.0 to <= 35.0 kg/m2.
  • Supine pulse rate >= 50 bpm and <= 100 bpm obtained after a 5-minute rest at Screening.
  • Supine systolic blood pressure (SBP) <= 160 mm Hg and >= 90 mm Hg and supine diastolic blood pressure (DBP) <= 90 mm Hg and obtained after a 5-minute rest at Screening.

Who cannot join

  • Orthostatic (SBP decrease of >= 30 mmHg, DBP decrease of >= 20 mmHg, or pulse increase of >= 30 bpm) as determined after standing for 5 minutes.
  • Current or history of suicidal ideation as indicated by answering "Yes" answer to Suicidal Ideation Questions #4 or #5 on the Columbia-Suicide Severity Rating Scale (C-SSRS) at Screening in the past 3 months or any "Yes" answer to Suicidal Behavior Questions #1-5 in the past year. Non-suicidal self-injurious behavior is not exclusionary.
  • History of suicide attempt(s) within 1 year prior to study drug administration as evidenced by answering "Yes" to any Suicidal Behavior Questions (a "Yes" to Non-Suicidal Self-Injurious Behavior is not exclusionary).
  • Contraindications to MRIs (metal implants, paramagnetic objects contained within the body, claustrophobia, etc.)
  • Clinically significant findings as determined from screening brain MRI.
  • History of previous radiation exposure for research purposes such that participation in this study will result in cumulative ionizing radiation exposure >10 mSv in the past 12 months, in additional to normal background exposure.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Parexel Early Phase Clinical Unit /ID# 264286

    Harrow, HA1 3UJ

Other trials in United Kingdom

About this study

Official title: An Open-Label Positron Emission Tomography (PET) Study to Evaluate the Dopamine D2 and D3 Receptor Occupancy in the Brain After Multiple Doses of ABBV-932

The main objective of this study is to evaluate the dopamine D2 and D3 receptor occupancy in the brain as measured by PET with radiotracer [11C]-(+)-PHNO up to 14 days of once-daily oral doses of ABBV-932 in healthy subjects.

ABBV-932 is a dopamine D3 receptor-preferring D3/D2 receptor partial agonist. Approximately 12 adult healthy volunteers will be enrolled in the United Kingdom.

Participants will receive ABBV-932 oral capsules once daily for 2 weeks and followed for 60 days.

Participants will be confined for approximately 15 days. Participants will receive 3 [11C]-(+)-PHNO PET scans during the study. Adverse Events and blood tests will be performed.

Being tested
ABBV-932
Keywords
Healthy Volunteers, ABBV-932

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ABBV-932Drug

    Oral Capsule

Study groups in NCT06300580
Study groupRoleWhat they receive
ABBV-932ExperimentalParticipants will receive ABBV-932.
Receives: Drug: ABBV-932

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Dopamine Receptor Occupancy in Brain Measured by Positron Emission Tomography (PET)

    Dopamine D2 and D3 Receptor Occupancy in the brain up to Day 14 after multiple doses of ABBV-932 will be measured by PET. The occupancies will be determined by evaluating the difference in the binding potential (BPND) measured between baseline and post-dose scans in various brain regions.

    Measured: Up to approximately 14 days

  2. Number of Participants with Adverse Events (AEs)

    An AE is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment.

    Measured: Up to approximately 74 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Mar 2024
  2. Study start21 Aug 2024
  3. Primary completion26 May 2025
  4. Study completion26 May 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06300580
Sponsor's protocol ID
M23-991
Acronym
Ph1PET UK Stdy
Status last verified
Jun 2025
First submitted
3 Mar 2024
Last updated
5 Jun 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ABBV-932 in people with Healthy Volunteers, run by AbbVie at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Dopamine Receptor Occupancy in Brain Measured by Positron Emission Tomography (PET) (time frame: Up to approximately 14 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2025.

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Ph1PET UK Stdy Clinical Trial NCT06300580 | AzTrials