Matching Genotypes and Serotonergic Medications for Alcoholism
Public ClinicalTrials.gov record NCT01113164. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
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Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Sertraline, a serotonin-specific reuptake inhibitor (SSRI) that increases basal serotonin levels, was shown to reduce alcohol consumption in lower risk/severity and later onset (LOA) but not higher risk/severity earlier onset alcoholic individuals (EOA). By contrast, ondansetron, a 5-HT3 receptor reduced alcohol consumption in EOAs but not LOAs. To explain this contrast in clinical efficacy, one approach suggests that differential serotonergic response is based on a functional polymorphism of the 5-HTTLPR promoter region of the serotonin re-uptake transporter (SERT). These alleles have typically been classified as biallelic genotypes: LL, SS and SL. The LL variant is postulated to be associated with EOA and the SS/SL variants associated with LOA. To test this hypothesis the investigators therefore propose to match and mismatch serotonergic treatments to genetic polymorphic variants \[in 132 non-treatment seeking alcohol dependent volunteers\] in a double-blind placebo controlled 2 x 2 design human laboratory study. The investigators propose to randomize non-treatment-seeking alcohol dependent persons based on their 5'-HTTLPR variant genotype (LL or SS/SL) into one of two counterbalanced arms: participants in the first arm (LL) will first receive one drug (either 200mg/day of sertraline or ondansetron 0.5mg/day) for three weeks followed by an alcohol self-administration experiment (ASAE), \[with a 1 week down-titration period if sertraline received first, during the first week of the "placebo period"\] then receive placebo for two more weeks (this will be a single-blind portion to use as a comparison group and to wash out the pharmacodynamic effects of the first drug) followed by a second ASAE. Participants will then receive the second drug for three weeks followed by a third ASAE \[all will receive medication for an additional 1 week period and those receiving sertraline last will be down-titrated\]. Participants in the second arm (SS/SL) will receive the same medications in the same balanced design. Individuals in both arms will receive weekly medication management to enhance medication adherence. The long-term objective of this research is to prospectively examine serotonergic treatment matching for alcohol dependence based on genotyping. Of equal importance, the investigators also recognize the strong contribution of additional genetic and environmental influences on alcohol consumption.
Study identification
- NCT ID
- NCT01113164
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 79 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 31, 2008
- Primary completion
- Jan 31, 2012
- Completion
- Jan 31, 2012
- Last update posted
- Feb 21, 2012
2008 – 2012
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Center for Alcohol and Addiction Studies | Providence | Rhode Island | 02912 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01113164, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 21, 2012 · Synced Sep 10, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01113164 live on ClinicalTrials.gov.