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Generalized Anxiety DisorderNCT00601965

Antidepressant Treatment Plus Cognitive Behavioral Therapy for Generalized Anxiety Disorder in Older Adults

A study testing Escitalopram and Cognitive behavioral therapy (CBT) in people with Generalized Anxiety Disorder, run by Veterans Medical Research Foundation at 3 sites 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

This study will assess whether adding cognitive behavioral therapy to the antidepressant escitalopram is effective in reducing anxiety in older adults with generalized anxiety disorder. Read more about this study

Who is it for?
Ages 60 years and older
Conditions the study is for
Generalized Anxiety Disorder
What is being tested?
Escitalopram and Cognitive behavioral therapy (CBT)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
73 participants
Where
3 sitesUnited States
Study dates
Oct 2007to Sep 2011
Phase
Interventional
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 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Principal (i.e., most severe or pressing problem) or co-principal current diagnosis of generalized anxiety disorder
  • Pretreatment score of at least 17 on Hamilton Anxiety Rating Scale

Who cannot join

  • Principal diagnosis other than GAD
  • Clinically judged too psychiatrically unstable to participate in the study
  • Cognitive impairment or dementia
  • Alcohol or other substance use disorder within 6 months prior to study entry
  • Lifetime diagnosis of schizophrenia, schizoaffective disorder, delusional disorder, or bipolar disorder
  • Serious, unstable, or terminal medical condition that would compromise study participation or preclude the use of escitalopram, as determined by a review of medical records
Show all 10Show fewer
  • Use of psychotropics that could not be safely tapered and discontinued for at least 2 weeks prior to study entry
  • Use of depot neuroleptics within 6 weeks prior to study entry
  • Unwillingness to terminate other forms of psychotherapy
  • Already received adequate trial of escitalopram or CBT

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • University of Pittsburgh

    Pittsburgh, Pennsylvania, 15213

  • UCSD Outpatient Psychiatric Services

    San Diego, California, 92103

  • Washington University

    St Louis, Missouri, 63110

Other trials in United States

About this study

Official title: CBT Augmentation of SSRI Treatment for Geriatric GAD

This study will assess whether adding cognitive behavioral therapy to the antidepressant escitalopram is effective in reducing anxiety in older adults with generalized anxiety disorder.

Read the detailed description

Generalized anxiety disorder (GAD) affects nearly 6.8 million adults in the United States. GAD is diagnosed when a person spends at least 6 months excessively worrying over everyday problems to the point that carrying out normal life becomes difficult. People with GAD face each day with intense anxiety and tension and are unable to alleviate their worries. Physical symptoms of GAD include muscle aches, nausea, sweating, exhaustion, irritability, frequent urination, shaking, and hot flashes. People with GAD often experience other anxiety disorders, depression, or substance abuse, all of which can worsen symptoms of GAD. This makes early and appropriate treatment for GAD important. Current treatments for GAD include medication and/or types of psychotherapy. This study will assess whether adding cognitive behavioral therapy (CBT) to the antidepressant escitalopram is effective in reducing anxiety in older adults with GAD.

Participation in this double-blind study will last up to 13 months. Participants will be asked to stop any current treatments for anxiety or depression for the duration of the study. Participants will begin taking one pill of the medication escitalopram daily for 12 weeks. Dosage will be increased to two pills each day if symptoms do not improve within 4 weeks. After 12 weeks, all participants will continue taking escitalopram for an additional 16 weeks. In addition, some participants will be randomly assigned to receive 16 weekly sessions of CBT, lasting 1 hour each. CBT sessions will involve learning relaxation techniques and other skills to manage anxiety and completing 30-minute at-home practice assignments each day. A family member will accompany participants to the first four CBT sessions. All participants will be asked to provide information for a close contact, who will be interviewed at baseline, Month 3, and Month 7 about how the participant's anxiety is affecting his or her relationships.

After the 16-week period, participants will again be randomly assigned to receive either continued escitalopram or a placebo for an additional 28 weeks. Participants assigned to the placebo will be gradually tapered off escitalopram over a 6-week period. Participants who were receiving CBT will receive three more sessions. Throughout the study, participants will be asked to complete various assessments, including questionnaires, memory and thinking tests, and attention evaluations. Blood samples will be taken at Weeks 2 and 8, and saliva samples will be taken at baseline and Weeks 12, 28, and 56.

Being tested
Escitalopram, Placebo, Cognitive behavioral therapy (CBT)
Medical subject headings
Generalized Anxiety Disorder

What participants receive

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

  • EscitalopramDrug

    Also called Lexapro

    20 mg daily oral escitalopram

  • PlaceboDrug

    Also called Sugar pill

    Placebo pill of daily oral escitalopram

  • Cognitive behavioral therapy (CBT)Behavioural

    Also called CBT

    16 weekly 1-hour sessions

Study groups in NCT00601965
Study groupRoleWhat they receive
CBT/EscitalopramExperimental12 weeks open-label escitalopram (10-20mg/day as tolerated), followed by 16 weeks individual cognitive behavioral therapy plus continuation escitalopram at same dose as end of first 12 weeks, followed by 28 weeks maintenance escitalopram at same dose as at end of first 12 weeks. Up to 3 booster sessions of CBT allowed during the 28 week maintenance phase. CBT consists of 16 sessions of relaxation training, cognitive restructuring, and problem-solving skills training.
Receives: Drug: Escitalopram; Behavioral: Cognitive behavioral therapy (CBT)
No CBT/escitalopramActive comparator12 weeks open-label escitalopram (10-20 mg/day as tolerated), followed by 16 weeks continuation escitalopram at same dose as at end of first 12 weeks, followed by 28 weeks maintenance escitalopram at same dose as at end of first 12 weeks.
Receives: Drug: Escitalopram
CBT/placeboPlacebo comparator12 weeks open-label escitalopram (10-20mg/day as tolerated), followed by 16 weeks individual cognitive behavioral therapy plus continuation escitalopram at same dose as end of first 12 weeks, followed by 28 weeks of pill placebo. 28 weeks of pill placebo includes a taper period of a duration dependent on the initial dose of escitalopram, but in all cases taper to placebo is complete after 8 weeks. Up to 3 booster sessions of CBT allowed during the 28 week maintenance phase. CBT consists of 16 sessions of relaxation training, cognitive restructuring, and problem-solving skills training.
Receives: Drug: Placebo; Behavioral: Cognitive behavioral therapy (CBT)
No CBT/placeboPlacebo comparator12 weeks open-label escitalopram, 16 weeks continuation escitalopram, 28 weeks pill placebo 12 weeks open-label escitalopram (10-20 mg/day as tolerated), followed by 16 weeks continuation escitalopram at same dose as at end of first 12 weeks, followed by 28 weeks of pill placebo. 28 weeks of pill placebo includes a taper period of a duration dependent on the initial dose of escitalopram, but in all cases taper to placebo is complete after 8 weeks.
Receives: Drug: Placebo

What is being measured

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

  1. Hamilton Anxiety Rating Scale

    The Hamilton Anxiety Rating Scale is a clinician-rated measure of cognitive and somatic anxiety symptoms. It consists of 14 items, each of which is scored on a 0-4 scale, summed for a total score ranging from 0 to 56. Inclusion criteria for this study included a Hamilton score >= 17. The Hamilton, administered by blind raters, will be used to test hypotheses number 1 and 2. The outcome of interest is the number of participants who relapse, defined as having a Hamilton increase of >=5, for a total Hamilton >=14, relative to the end of the continuation phase (week 28), for a duration of at least 2 weeks, plus both clinician's and participant's judgment that the participant is experiencing a recurrence of anxiety symptoms. HAMA scores range from 0 (no anxiety) to 56 (high anxiety).

    Measured: 56 weeks

  2. Penn State Worry Questionnaire

    The Penn State Worry Questionnaire is a 16-item measure of pathological worry. Scores range from 16-80, with higher scores indicating higher levels of worry.

    Measured: 56 weeks

Timeline

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

  1. First posted28 Jan 2008 (estimated)
  2. Study startOct 2007
  3. Primary completionSep 2011
  4. Study completionSep 2011

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00601965
Sponsor's protocol ID
R34MH080151
Other IDs
R34MH080151, NCT00601965
Status last verified
Jul 2016
First submitted
15 Jan 2008
Last updated
25 Aug 2016
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Wetherell JL, Petkus AJ, White KS, Nguyen H, Kornblith S, Andreescu C, Zisook S, Lenze EJ. Antidepressant medication augmented with cognitive-behavioral therapy for generalized anxiety disorder in older adults. Am J Psychiatry. 2013 Jul;170(7):782-9. doi: 10.1176/appi.ajp.2013.12081104.

    PubMed 23680817

Questions about this trial

What is this clinical trial studying?

A study testing Escitalopram and Cognitive behavioral therapy (CBT) in people with Generalized Anxiety Disorder, run by Veterans Medical Research Foundation 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 2 inclusion and 10 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 25 Aug 2016. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Aug 2016). 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?

Hamilton Anxiety Rating Scale (time frame: 56 weeks). The study lists 2 primary outcomes in all. 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 NCT00601965, which also lists 1 linked publication.

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 25 Aug 2016.

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