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Panic DisorderPhase 4NCT00635076

A Study to Assess the Long-term Use of Alprazolam Extended Release (XL) in the Treatment of Adolescents With Panic Disorder

A Phase 4 study testing alprazolam XR in people with Panic Disorder, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to evaluate the long-term (6-month) efficacy, safety, and tolerability of alprazolam XR in adolescents with panic disorder. Read more about this study

Who is it for?
Ages 13 to 17 years
Conditions the study is for
Panic Disorder
What is being tested?
alprazolam XR
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
3 participants
Where
3 sitesUnited States
Study dates
Jul 2004to Sep 2004
Phase
Phase 4
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 13 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • A primary Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision diagnosis of panic disorder with or without agoraphobia based on the Mini-International Neuropsychiatric Interview for Children and Adolescents
  • Subjects with an average of 1) at least one 4-symptom panic attack per week over the last 4 weeks before screening; 2) at least one 4-symptom panic attack per week over the last 4 weeks before baseline; and 3) at least one 4-symptom panic attack in the 7 days prior to baseline
  • To enter Study A6131007, subjects must have completed Study A6131002, had an acceptable tolerability to study drug, and in the clinical judgment of the investigator, could have benefited from continued study treatment.

Who cannot join

  • Subjects must continue to meet all of the exclusion criteria enumerated in the Acute Efficacy Study (Protocol A6131002) with the following exception: Subjects will be allowed to undergo cognitive-behavioral or other panic-specific therapy and any other psychotherapy (e.g., supportive and/or family therapy) during the expected study period in this study.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Pfizer Investigational Site

    Eugene, Oregon, 97401

  • Pfizer Investigational Site

    Middleton, Wisconsin, 53562

  • Pfizer Investigational Site

    San Antonio, Texas, 78229

Other trials in United States

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Study of Continuation Treatment With Xanax XR in the Treatment of Adolescents With a Primary Diagnosis of Panic Disorder

The purpose of this study is to evaluate the long-term (6-month) efficacy, safety, and tolerability of alprazolam XR in adolescents with panic disorder.

Read the detailed description

Due to recruitment difficulties in this adolescent population, the clinical program for alprazolam XR was cancelled and this study was terminated on 1 September 2004. There were no safety concerns that led to this decision.

Conditions
Panic Disorder
Being tested
placebo, alprazolam XR
Medical subject headings
Panic Disorder

What participants receive

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

  • placeboOther

    Patients continued taking the matching placebo that they were taking when they completed Study A6131002 (oral tablets taken once daily).

  • alprazolam XRDrug

    Also called Xanax XR

    Patients continued taking the same dosage of alprazolam that they were taking when they completed Study A6131002 (oral tablets taken once daily (1-6mg)); patients taking less than 6 mg/day who failed to show a satisfactory clinical response since the previous visit, and who were free of dose-limiting adverse events, could have their dosage titrated upward by 1 mg/day; upward daily dosage titration of 1 mg was allowed every 7 days, up to a maximum daily dosage of 6 mg/day; patients who were unable to tolerate the previous dosage level of alprazolam XR could have their daily dosage reduced.

Study groups in NCT00635076
Study groupRoleWhat they receive
Placebo groupPlacebo comparatorNot described
Receives: Other: placebo
Alprazolam XR groupActive comparatorNot described
Receives: Drug: alprazolam XR

What is being measured

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

  1. Baseline-to-peak Physician Withdrawal Checklist change score during taper off Alprazolam

    Measured: Week 24 (taper baseline), Weeks 25-29, and end of taper visit

  2. The incidence of treatment-emergent adverse events during 6 months of treatment with alprazolam XR

    Measured: Weeks 6, 8, 12, 16, 20, and 24

  3. Endpoint change from baseline in Digit Symbol-Coding Test, immediate recall, and delayed recall

    Measured: Week 24

Secondary outcomes (6)
  1. Endpoint change from baseline in Hamilton Anxiety Rating scale

    Measured: Weeks 12 and 24

  2. Endpoint change compared with baseline in the Panic Disorder Severity Scale - Adolescent Version total and item scores

    Measured: Weeks 12 an 24

  3. Endpoint compared with baseline for Clinical Global Impression (CGI)-Improvement scale

    Measured: Weeks 12 and 24

  4. Endpoint change compared with baseline in CGI-Severity score

    Measured: Weeks 12 and 24

  5. Endpoint compared with baseline in Pediatric Quality of Life, Enjoyment, and Satisfaction Questionnaire improvement score

    Measured: Weeks 12 and 24

  6. Descriptive estimates of the persistence of safety events and adverse events

    Measured: Week 24

Timeline

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

  1. First posted13 Mar 2008 (estimated)
  2. Study startJul 2004
  3. Study completionSep 2004

Why it stopped: Please see Detailed Description for the termination reason.

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
Double blind
Who is masked
Participant, Investigator
Enrolment
3 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00635076
Sponsor's protocol ID
A6131007
Status last verified
Jan 2021
First submitted
5 Mar 2008
Last updated
28 Jan 2021
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing alprazolam XR in people with Panic Disorder, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 3 sites 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 3 inclusion and 1 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: stopped early, as of the sponsor's last update on 28 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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?

The study was stopped early (reason given: Please see Detailed Description for the termination reason.). Results are not available in the source record.

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?

Baseline-to-peak Physician Withdrawal Checklist change score during taper off Alprazolam (time frame: Week 24 (taper baseline), Weeks 25-29, and end of taper visit). 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 28 Jan 2021.

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