TerminatedNot Applicable

PET Evaluation of Brain Peripheral Benzodiazepine Receptors Using [11C]PBR28 in HIV-Seropositive Patients With (MCMD)

United States40 participantsStarted 2007-04-09

Plain-language summary

The purpose of this protocol is to measure a receptor in the brain using positron emission tomography (PET) that is involved in inflammation.

Who can participate

Age range

18 Years – 50 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. HIV-seropositive based on ELISA and Western blot (except the HIV-seronegative subjects, who will have ELISA screening).
. Capable of providing informed consent.
. Ambulatory at initial visit.
. If cognitively impaired, the degree of impairment will be MCMD, and not frank HIV-associated dementia.

Exclusion criteria

. Current psychiatric illness or severe systemic disease based on history and physical exam
. Current dependence on alcohol or substances other than nicotine.
. Laboratory results from blood or urine tests that show clinically significant abnormalities.
. Previous radiation exposure (X-rays, PET scans etc.) that would exceed research limits.
. Pregnancy and breast feeding.
. A history of brain disease.
. Cannot lie on your back for long periods since the pictures will be taken for about 2.5 hours during which time you will have to lie still on the scanner bed.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Brain uptake of [11C]PBR28 (measured as distribution volume).

Timeframe: One brain PET scan in one outpatient visit to NIH per subject.

Trial details

NCT IDNCT00459693

SponsorNational Institute of Mental Health (NIMH)

Sponsor typeNIH

Study typeINTERVENTIONAL

Primary completion2014-04-06

View on ClinicalTrials.gov More HIV-Dementia trials