HealthyNCT00001478
Effects of Drugs on Cerebral Blood Flow in Patients With Mood Disorders
An observational study of Healthy and Mood Disorders, run by National Institute of Mental Health (NIMH) at 1 site in United States.
Trial summary
Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal biochemical and metabolic processes of the central nervous system of normal individuals and patients with neurologic illnesses without physical / structural… Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Healthy, Mood Disorders
- How many people
- 170 participants
- Where
- 1 siteUnited States
- Study dates
- Oct 1994to Jan 2001
- Phase
- Observational
- 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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Healthy volunteers and patients who satisfy DSM-III-R criteria for mood disorders between ages of 18 and 75 will be invited to participate provided that the following criteria are fulfilled:
No history of medical illness (including seizures, endocrine, hepatic, renal, cardiac, allergic, infectious, autoimmune, or neurological disorders) that would contraindicate participation.
No evidence of co-existing major illness after undergoing complete psychiatric (including SADS-LA interview), medical, neurological, and laboratory examinations (including EEG, EKG, renal and liver function tests, serum electrolytes, urinalysis, HIV, hepatitis B, syphilis).
Negative pregnancy test for women of child bearing potential.
Women must not be breast feeding.
Negative HIV test, as we are studying primary mood and anxiety disorders and not disorders secondary to HIV infection.
Negative urine comprehensive drug screen and have not had alcohol or substance abuse problems in last 12 months.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institute of Mental Health (NIMH)
Bethesda, Maryland, 20892
About this study
Official title: Regional Cerebral Blood Flow Correlates of Spontaneous and Drug-Induced Clinical Changes in Mood Disorders
Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal biochemical and metabolic processes of the central nervous system of normal individuals and patients with neurologic illnesses without physical / structural damage to the brain.
When a region of the brain is active, it uses more fuel in the form of oxygen and sugar (glucose). As the brain uses more fuel it produces more waste products, carbon dioxide and water. Blood carries fuel to the brain and waste products away from the brain. As brain activity increases blood flow to and from the area of activity increases also. Knowing these facts, researchers can use radioactive chemicals (H215O) and PET scans to observe what areas of the brain are receiving more blood flow.
Read more
Patients diagnosed with mood disorders and healthy volunteers will receive positron emission tomographic (PET) scans with H215O while doing simple tasks. Patients will continue to receive scans while in different mood states and while taking different medications. Patients eligible for this study will be participating in other research studies measuring other clinical and biochemical parameters (mood and anxiety ratings, medication responses, and psychological test results). Information gathered from H215O PET scans measuring blood flow to specific brain areas will be compared to the data gathered from other studies.
Objectives of this study are;
- To determine differences in blood flow to the brain of patients with mood disorders compared to healthy volunteers.
- To determine differences in blood flow to the brain of patients with subtype mood disorders (such as unipolar versus bipolar) compared to healthy volunteers.
- To determine changes in blood flow to the brain of patients with mood disorders who experience spontaneous changes in symptoms
- To determine changes in blood flow to the brain of patients with mood disorders who receive various kinds of therapy (medication, transcranial magnetic stimulation, etc.)
- To determine if blood flow to specific areas of the brain can be used to predict how patients will respond to certain types of therapy
- To compare blood flow changes with various other clinical and biochemical parameters.
Read the detailed description
Patients with mood disorders and healthy volunteers will receive positron emission tomographic (PET) scans with H(2)(15)O to measure global and local differences in cerebral blood flow during a passive introspection task. Patients receive repeated scans while in different mood states and while participating in placebo controlled therapeutic trials as described by separate protocols. Global and regional cerebral blood flow is correlated with data obtained from participation in other protocols, which include clinical (life charting course of illness parameters, mood and anxiety ratings, medication response data, and psychological test performance) and biochemical (levels of medications, monoamines and peptides in the blood and cerebrospinal fluid) measures.
- Conditions
- Healthy, Mood Disorders
- Keywords
- Bupropion, Carbamazepine, Cerebral Blood Flow, Gabapentin, Lamotrigine, Mood Disorders, Nimodipine, Oxygen-15, Positron Emission Tomography, Venlafaxine
- Medical subject headings
- Mood Disorders
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Dec 2002 (estimated)
- Study startOct 1994
- Study completionJan 2001
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- More trials run by National Institute of Mental Health (NIMH)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 170 participants
Sponsor and investigators
- Lead sponsor
- National Institute of Mental Health (NIMH)
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00001478
- Sponsor's protocol ID
- 950016
- Other IDs
- 95-M-0016
- Status last verified
- Jan 2000
- First submitted
- 3 Nov 1999
- Last updated
- 4 Mar 2008
- Results posted
- No
Publications
Cohen RM, Semple WE, Gross M, Nordahl TE, King AC, Pickar D, Post RM. Evidence for common alterations in cerebral glucose metabolism in major affective disorders and schizophrenia. Neuropsychopharmacology. 1989 Dec;2(4):241-54. doi: 10.1016/0893-133x(89)90028-6.
PubMed 2610821Buchsbaum MS, DeLisi LE, Holcomb HH, Cappelletti J, King AC, Johnson J, Hazlett E, Dowling-Zimmerman S, Post RM, Morihisa J, et al. Anteroposterior gradients in cerebral glucose use in schizophrenia and affective disorders. Arch Gen Psychiatry. 1984 Dec;41(12):1159-66. doi: 10.1001/archpsyc.1984.01790230045007.
PubMed 6334502
Study at a glance
From the registry record, last updated by the sponsor on 4 Mar 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Regional Cerebral Blood Flow Correlates of Spontaneous and Drug-Induced Clinical Changes in Mood Disorders
- ClinicalTrials.gov ID
- NCT00001478
- Acronym / sponsor ID
- 950016
- Conditions
- Healthy, Mood Disorders
- Keywords
- Bupropion, Carbamazepine, Cerebral Blood Flow, Gabapentin, Lamotrigine, Mood Disorders, Nimodipine, Oxygen-15
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 170 participants
- Lead sponsor
- National Institute of Mental Health (NIMH)US National Institutes of Health
- Study start
- Oct 1994
- Study completion
- Jan 2001
- First posted
- 10 Dec 2002 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal biochemical and metabolic processes of the central nervous system of normal individuals and patients with neurologic illnesses without physical / structural damage to the brain.
When a region of the brain is active, it uses more fuel in the form of oxygen and sugar (glucose). As the brain uses more fuel it produces more waste products, carbon dioxide and water. Blood carries fuel to the brain and waste products away from the brain. As brain activity increases blood flow to and from the area of activity increases also. Knowing these facts, researchers can use radioactive chemicals (H215O) and PET scans to observe what areas of the brain are receiving more blood flow.
Patients diagnosed with mood disorders and healthy volunteers will receive positron emission tomographic (PET) scans with H215O while doing simple tasks. Patients will continue to receive scans while in different mood states and while taking different medications. Patients eligible for this study will be participating in other research studies measuring other clinical and biochemical parameters (mood and anxiety ratings, medication responses, and psychological test results). Information gathered from H215O PET scans measuring blood flow to specific brain areas will be compared to the data gathered from other studies.
Objectives of this study are;
- To determine differences in blood flow to the brain of patients with mood disorders compared to healthy volunteers.
- To determine differences in blood flow to the brain of patients with subtype mood disorders (such as unipolar versus bipolar) compared to healthy volunteers.
- To determine changes in blood flow to the brain of patients with mood disorders who experience spontaneous changes in symptoms
- To determine changes in blood flow to the brain of patients with mood disorders who receive various kinds of therapy (medication, transcranial magnetic stimulation, etc.)
- To determine if blood flow to specific areas of the brain can be used to predict how patients will respond to certain types of therapy
- To compare blood flow changes with various other clinical and biochemical parameters.
Detailed description
Patients with mood disorders and healthy volunteers will receive positron emission tomographic (PET) scans with H(2)(15)O to measure global and local differences in cerebral blood flow during a passive introspection task. Patients receive repeated scans while in different mood states and while participating in placebo controlled therapeutic trials as described by separate protocols. Global and regional cerebral blood flow is correlated with data obtained from participation in other protocols, which include clinical (life charting course of illness parameters, mood and anxiety ratings, medication response data, and psychological test performance) and biochemical (levels of medications, monoamines and peptides in the blood and cerebrospinal fluid) measures.
Study design
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Mar 2008.
- Background: PubMed 2610821Cohen RM, Semple WE, Gross M, Nordahl TE, King AC, Pickar D, Post RM. Evidence for common alterations in cerebral glucose metabolism in major affective disorders and schizophrenia. Neuropsychopharmacology. 1989 Dec;2(4):241-54. doi: 10.1016/0893-133x(89)90028-6.
- Background: PubMed 6334502Buchsbaum MS, DeLisi LE, Holcomb HH, Cappelletti J, King AC, Johnson J, Hazlett E, Dowling-Zimmerman S, Post RM, Morihisa J, et al. Anteroposterior gradients in cerebral glucose use in schizophrenia and affective disorders. Arch Gen Psychiatry. 1984 Dec;41(12):1159-66. doi: 10.1001/archpsyc.1984.01790230045007.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Healthy and Mood Disorders, run by National Institute of Mental Health (NIMH) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 4 Mar 2008. 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 States. 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.
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.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00001478, which also lists 2 linked publications.
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 4 Mar 2008; AzTrials last refreshed its copy on 8 Nov 2026.