Induced Pluripotent Stem CellsNCT01534624
Stem Cell Study of Genetics and Drug Addiction
An observational study of Induced Pluripotent Stem Cells, run by National Institute on Drug Abuse (NIDA) at 1 site in United States.
Trial summary
Background: Researchers are interested in studying the roles that genes play in drug and alcohol addiction. Genes seem to account for about half of the differences between people who become addicted to drugs and people who do not. This study will collect blood and skin cell samples. Read more about this study
- Who is it for?
- Ages 21 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Induced Pluripotent Stem Cells
- How many people
- 49 participants
- Where
- 1 siteUnited States
- Study dates
- 7 Feb 2012to 30 Jul 2014
- 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 21 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 21 to 65 years old
- Opioid dependent participant group only:
- enrollment in a substance abuse treatment protocol in Archway.
- Non-drug users
- no lifetime history of drug dependence as indicated by the screening ASI and Substance Abuse/Dependence Evaluation counselor interview.
Who cannot join
- Relevant neurological disorders (including, but not limited to, Parkinson s disease and Huntington s disease).
- contraindications to skin biopsy including, but not limited to, bleeding disorders, skin disorders, and immune disorders, that the MAI determines may alter the risk of the biopsy.
- cognitive impairment severe enough to preclude informed consent or valid responses on questionnaires.
- controls will also be excluded if they test positive for drugs or alcohol during screening or study visits.
- unwillingness to allow samples to be kept for future research.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institute on Drug Abuse
Baltimore, Maryland, 21224
About this study
Official title: Development of Induced Pluripotent Stem Cells Carrying Monoamine Transporter Polymorphisms
Background:
- Researchers are interested in studying the roles that genes play in drug and alcohol addiction. Genes seem to account for about half of the differences between people who become addicted to drugs and people who do not. This study will collect blood and skin cell samples. These cells will be used to develop stem cells that are useful for studying how genes are related to drug use and dependence.
Read more
Objectives:
- To study genetic and cellular differences between people who are addicted to drugs and those who are not.
Eligibility:
- Individuals between 21 and 65 years of age who do not use drugs.
- Individuals between 21 and 65 years of age who are in treatment with buprenorphine or methadone.
Design:
- Participants will be screened with a brief physical exam and medical history.
- Participants will also answer questions about physical and mental health, quality of life, and history of drug and alcohol use. A urine sample and cheek swab sample will be collected.
- Participants whose genetic samples match the study requirements will be asked to come back to provide a skin biopsy sample and a second urine sample.
Read the detailed description
Background - The molecular- and cellular-based mechanisms that contribute to the initiation and development of addiction remain to be elucidated. Estimates have suggested that 40-60 percent of the vulnerability to addiction may be attributable to genetic aberrations. Multiple chromosomal regions have been linked to addiction including those containing the dopamine transporter (DAT) and vesicular monoamine transporter (VMAT2) genes. Current efforts to understand how polymorphisms in these monoamine transporters contribute to the molecular mechanisms of addiction are severely hindered by the inability to directly interrogate neural cell types from the patients. There is great potential for patient-specific iPS cell technology to profoundly impact our understanding of human development and disease by providing genetically distinct, functional sources of human cells.
Objective - The objective of the research is to develop a cell-based system whereby neural cells from afflicted individuals can be functionally assayed to interrogate the molecular mechanisms underlying addiction.
Study population Controls (non-drug users) and opioid dependent adults receiving opioid agonist therapy aged 21- 65 will be enrolled.
Design Participants demographic characteristics, psychosocial evaluation, and psychiatric, medical, and drug use histories will be characterized. DNA will be collected via cheek swabs of up to 30 potential participants for determination of dopamine transporter (DAT) and vesicular monoamine transporter (VMAT2) gene polymorphisms. Participants (N=16) with suitable polymorphisms will be asked to under go skin biopsies; 2 individuals for each of two genotypes for each gene (DAT or VMAT), i.e., 8 samples from addicts and 8 samples for control subjects. Collaborators at Case Western Reserve University will use the skin cells to derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms for the hDAT1 and hVMAT2 genes. They will differentiate patient-specific iPS cells line into dopaminergic neurons and carry out a detailed and functional characterization of these cells to identify their molecular characteristics.
Outcome measures - Biological specimens from the addiction patients and controls will be used to derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms. Patient-specific iPS cells lines will be differentiated into dopaminergic neurons. In follow up studies, we will characterize, compare, and functionally assay these patient-specific, iPS cell-derived dopaminergic neurons from control and addiction patients that carry polymorphisms for hDAT1 and hVMAT2 gene to investigate any possible association with dopamine neurotransmission variations and vulnerability to addiction.
- Conditions
- Induced Pluripotent Stem Cells
- Keywords
- Induced Pluripotent Stem Cell (iPS) Cell Lines, Addiction, Addiction-Associated Human Gene Variants, Dopamine Transporter
- Medical subject headings
- Ichthyosis prematurity syndrome, Behavior, Addictive
What is being measured
The primary outcome is the main question the study is designed to answer.
Derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms and differentiate them into dopaminergic neurons.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Feb 2012 (estimated)
- Study start7 Feb 2012
- Study completion30 Jul 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Induced Pluripotent Stem CellsStudies of the same condition, open and under way.
- 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
- Time perspective
- Prospective
- Enrolment
- 49 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Institute on Drug Abuse (NIDA)
- Sponsor type
- US National Institutes of Health
- Investigators
- Kenzie Preston, Ph.D., Principal investigator, National Institute on Drug Abuse (NIDA)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01534624
- Sponsor's protocol ID
- 999912476
- Other IDs
- 12-DA-N476
- Status last verified
- 30 Jul 2014
- First submitted
- 15 Feb 2012
- Last updated
- 17 Dec 2019
- Results posted
- No
Publications
Hyman SE, Malenka RC. Addiction and the brain: the neurobiology of compulsion and its persistence. Nat Rev Neurosci. 2001 Oct;2(10):695-703. doi: 10.1038/35094560.
PubMed 11584307Nestler EJ. Molecular basis of long-term plasticity underlying addiction. Nat Rev Neurosci. 2001 Feb;2(2):119-28. doi: 10.1038/35053570.
PubMed 11252991Wise RA, Bozarth MA. A psychomotor stimulant theory of addiction. Psychol Rev. 1987 Oct;94(4):469-92. No abstract available.
PubMed 3317472
Study at a glance
From the registry record, last updated by the sponsor on 17 Dec 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Development of Induced Pluripotent Stem Cells Carrying Monoamine Transporter Polymorphisms
- ClinicalTrials.gov ID
- NCT01534624
- Acronym / sponsor ID
- 999912476
- Conditions
- Induced Pluripotent Stem Cells
- Keywords
- Induced Pluripotent Stem Cell (iPS) Cell Lines, Addiction, Addiction-Associated Human Gene Variants, Dopamine Transporter
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 49 participants (actual)
- Lead sponsor
- National Institute on Drug Abuse (NIDA)US National Institutes of Health
- Study start
- 7 Feb 2012
- Study completion
- 30 Jul 2014
- First posted
- 16 Feb 2012 (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.
Background:
- Researchers are interested in studying the roles that genes play in drug and alcohol addiction. Genes seem to account for about half of the differences between people who become addicted to drugs and people who do not. This study will collect blood and skin cell samples. These cells will be used to develop stem cells that are useful for studying how genes are related to drug use and dependence.
Objectives:
- To study genetic and cellular differences between people who are addicted to drugs and those who are not.
Eligibility:
- Individuals between 21 and 65 years of age who do not use drugs.
- Individuals between 21 and 65 years of age who are in treatment with buprenorphine or methadone.
Design:
- Participants will be screened with a brief physical exam and medical history.
- Participants will also answer questions about physical and mental health, quality of life, and history of drug and alcohol use. A urine sample and cheek swab sample will be collected.
- Participants whose genetic samples match the study requirements will be asked to come back to provide a skin biopsy sample and a second urine sample.
Detailed description
Background - The molecular- and cellular-based mechanisms that contribute to the initiation and development of addiction remain to be elucidated. Estimates have suggested that 40-60 percent of the vulnerability to addiction may be attributable to genetic aberrations. Multiple chromosomal regions have been linked to addiction including those containing the dopamine transporter (DAT) and vesicular monoamine transporter (VMAT2) genes. Current efforts to understand how polymorphisms in these monoamine transporters contribute to the molecular mechanisms of addiction are severely hindered by the inability to directly interrogate neural cell types from the patients. There is great potential for patient-specific iPS cell technology to profoundly impact our understanding of human development and disease by providing genetically distinct, functional sources of human cells.
Objective - The objective of the research is to develop a cell-based system whereby neural cells from afflicted individuals can be functionally assayed to interrogate the molecular mechanisms underlying addiction.
Study population Controls (non-drug users) and opioid dependent adults receiving opioid agonist therapy aged 21- 65 will be enrolled.
Design Participants demographic characteristics, psychosocial evaluation, and psychiatric, medical, and drug use histories will be characterized. DNA will be collected via cheek swabs of up to 30 potential participants for determination of dopamine transporter (DAT) and vesicular monoamine transporter (VMAT2) gene polymorphisms. Participants (N=16) with suitable polymorphisms will be asked to under go skin biopsies; 2 individuals for each of two genotypes for each gene (DAT or VMAT), i.e., 8 samples from addicts and 8 samples for control subjects. Collaborators at Case Western Reserve University will use the skin cells to derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms for the hDAT1 and hVMAT2 genes. They will differentiate patient-specific iPS cells line into dopaminergic neurons and carry out a detailed and functional characterization of these cells to identify their molecular characteristics.
Outcome measures - Biological specimens from the addiction patients and controls will be used to derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms. Patient-specific iPS cells lines will be differentiated into dopaminergic neurons. In follow up studies, we will characterize, compare, and functionally assay these patient-specific, iPS cell-derived dopaminergic neurons from control and addiction patients that carry polymorphisms for hDAT1 and hVMAT2 gene to investigate any possible association with dopamine neurotransmission variations and vulnerability to addiction.
Study design
- Time perspective
- Prospective
Who may qualify
- Ages
- 21 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Non-drug users
Key exclusion criteria (5 listed)
- Relevant neurological disorders (including, but not limited to, Parkinson s disease and Huntington s disease).
- contraindications to skin biopsy including, but not limited to, bleeding disorders, skin disorders, and immune disorders, that the MAI determines may alter the risk of the biopsy.
- cognitive impairment severe enough to preclude informed consent or valid responses on questionnaires.
- controls will also be excluded if they test positive for drugs or alcohol during screening or study visits.
- unwillingness to allow samples to be kept for future research.
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
Derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms and differentiate them into dopaminergic neurons.
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 17 Dec 2019.
- Background: PubMed 11584307Hyman SE, Malenka RC. Addiction and the brain: the neurobiology of compulsion and its persistence. Nat Rev Neurosci. 2001 Oct;2(10):695-703. doi: 10.1038/35094560.
- Background: PubMed 11252991Nestler EJ. Molecular basis of long-term plasticity underlying addiction. Nat Rev Neurosci. 2001 Feb;2(2):119-28. doi: 10.1038/35053570.
- Background: PubMed 3317472Wise RA, Bozarth MA. A psychomotor stimulant theory of addiction. Psychol Rev. 1987 Oct;94(4):469-92. No abstract available.
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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.
Kenzie Preston, Ph.D. principal investigator
National Institute on Drug Abuse (NIDA)
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 Induced Pluripotent Stem Cells, run by National Institute on Drug Abuse (NIDA) at 1 site in United States.
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 5 inclusion and 5 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 17 Dec 2019. 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.
What does the primary outcome measure?
Derive and characterize patient-specific, induced pluripotent stem (iPS) cells that carry monoamine transporter polymorphisms and differentiate them into dopaminergic neurons.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01534624, which also lists 3 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 17 Dec 2019.