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Social Anxiety DisorderPhase 4NCT00246441

Paroxetine for Comorbid Social Anxiety Disorder and Alcoholism

A Phase 4 study testing Paroxetine in people with Social Anxiety Disorder and Social Phobia, run by Medical University of South Carolina at 1 site in United States.

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 purpose of the study is to determine whether an SSRI, paroxetine, improves social anxiety symptoms and alcohol use in individuals who drink to cope with social anxiety disorder. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Paroxetine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
42 participants
Where
1 siteUnited States
Study dates
Mar 2002to Feb 2008
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Meets DSM-IV criteria for current social anxiety disorder
  • Reports social anxiety in most situations (generalized type).
  • Treatment seeking for relief of social anxiety.
  • Meets DSM-IV criteria for current alcohol use disorder
  • Reads at the 6th grade level or above
  • Endorses using alcohol to cope with social anxiety either "very often" or "always."
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  • Reports no prior medical alcohol detoxification
  • Willingness to be randomized to the placebo group
  • Willingness to attend 16 weekly medication management visits and one alcohol-related therapy session
  • Liebowitz Social Anxiety Scale Total score (modified version) of at least 60
  • Endorses drinking at least 15 standard drinks in a typical 30 day period or reports drinking heavily (defined as greater-than-or-equal-to 4 standard drinks on one occasion for women; greater-than-or-equal-to 5 standard drinks on one occasion for men, respectively) on at least 2 days in a typical 30 day period.

Who cannot join

  • Abuse or dependence on drugs other than nicotine or marijuana in last 90 days
  • Current or past diagnosis of bipolar disorder or schizophrenia
  • Significant suicide risk as assessed by the SCID
  • Current use of psychotropic medications
  • Treatment seeking for alcohol problems
  • Any unstable medical condition that might interfere with safe participation in the trial
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  • Elevated liver enzymes (3 x greater than normal levels)
  • History of adverse reaction to paroxetine
  • History of failure to respond to adequate trial or dose of paroxetine for social phobia (60 mg/day for at least 6 weeks)
  • History of heart problems or abnormal ECG recording
  • Pregnancy, nursing, or refusal to use effective birth control if sexually active and premenopausal
  • History of one or more alcohol detoxifications

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical University of South Carolina, Institute of Psychiatry

    Charleston, South Carolina, 29425

Other trials in United States

About this study

The purpose of the study is to determine whether an SSRI, paroxetine, improves social anxiety symptoms and alcohol use in individuals who drink to cope with social anxiety disorder.

Read the detailed description

Social anxiety disorder (also known as social phobia) is an Axis I anxiety disorder characterized by intense fear and avoidance of social or performance situations in which one might be scrutinized. Its onset is typically in the early teen years. It is the third most common mental disorder in the United States, exceeded in prevalence only by depression and alcoholism. Approximately 20% of the individuals with social anxiety disorder have alcohol problems. Anecdotal and empirical evidence suggests that alcohol is used by some socially anxious individuals to self-medicate anxiety symptoms, a practice that could lead to alcohol abuse and/or dependence. The proposed project further explores the self-medication hypothesis through the use of a double-blind, randomized, placebo-controlled clinical trial. Paroxetine (a selective serotonin reuptake inhibitor) is the drug to be used in the study. Individuals who drink alcohol to cope with social anxiety symptoms and who meet DSM-IV criteria for the dual-diagnoses of social anxiety disorder and alcohol use disorders will be enrolled in the trial. All individuals will be seeking treatment for social anxiety disorder. The treatment phase will last 16 weeks. Dosing will start at 20 mg/day (paroxetine or placebo) and will increase gradually to a maximum dose of 60 mg/day. Each week during treatment and at the end of the trial, assessments will be made with standard instruments to determine the effect of paroxetine (versus placebo) on social anxiety severity, alcohol use, and more specifically, the intentional use of alcohol to cope with social anxiety symptoms. Additionally, 6 month and 12 month follow-up interviews will be conducted. The overarching hypothesis is that because paroxetine will improve social anxiety severity, alcohol use and/or alcohol use for coping will also be reduced in the paroxetine-treated group.

Being tested
Paroxetine, Placebo
Keywords
Pharmacotherapy, Self medication
Medical subject headings
Phobia, Social, Alcoholism

What participants receive

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

  • ParoxetineDrug

    Also called paxil

    16 weeks treatment; dosing will start at 20 mg/day paroxetine and will increase gradually to a maximum dose of 60 mg/day

  • PlaceboDrug

    Also called sugar pill

    treatment phase will last 16 weeks; dosing will start at 20 mg/day (placebo) and will increase gradually to a maximum dose of 60 mg/day.

Study groups in NCT00246441
Study groupRoleWhat they receive
ParoxetineExperimentalActive medication containing the drug Paroxetine
Receives: Drug: Paroxetine
PlaceboPlacebo comparatorA Placebo medication that appears just like the active medication but does not contain placebo
Receives: Drug: Placebo

What is being measured

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

  1. Social Anxiety Severity

    Liebowitz Social Anxiety Scale (LSAS) - each of the two subscales, Fear and Avoidance, each have a maximum possible score of 72 (range 0 to 72). The total score ranges from 0 to 144. A higher score indicates higher severity of Social Anxiety Disorder.

    Measured: 16 weeks treatment

  2. Alcohol Use, Quantity and Frequency

    Timeline Followback (TLFB), a validated calendar based instrument to assess number of standard drinks consumed on each day of the trial. Baseline measures were computed using past 30 days. From the TLFB, three measures were computed: 1. Proportion of days abstinent (PDA) (the number of days when no drinking occurred, divided by the number of days in the assessment period) (minimum is 0, maximum is 1) (higher score is better), 2. Drinks per drinking day (DDD) (the mean number of standard drinks consumed on a drinking day in the assessment period) (minimum is >0, maximum is infinity) (higher score is worse), 3. Proportion of Heavy Drinking Days (PHD) (the proportion of days each assessment period that a woman consumed 4 or more standard drinks/ man consumed 5 or more standard drinks) (minimum is 0, maximum is 1) (higher score is worse).

    Measured: 16 weeks treatment

  3. Drinking to Cope

    Drinking days that were related to coping with Social Anxiety determined by the TLFB- the proportion of drinking days that were reported to be due to coping with social anxiety. Minimum value is 0, maximum value is 1 Higher is worse.

    Measured: 16 weeks treatment

Timeline

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

  1. First posted31 Oct 2005 (estimated)
  2. Study startMar 2002
  3. Primary completionFeb 2008
  4. Study completionFeb 2008

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00246441
Sponsor's protocol ID
NIAAARAN013379
Other IDs
R01AA013379
Status last verified
Sep 2018
First submitted
28 Oct 2005
Last updated
27 Sep 2018
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Paroxetine in people with Social Anxiety Disorder and Social Phobia, run by Medical University of South Carolina 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 11 inclusion and 12 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 27 Sep 2018. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Sep 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Social Anxiety Severity (time frame: 16 weeks treatment). The study lists 3 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 27 Sep 2018.

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