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Panic DisorderPhase 3NCT01680107

D-cycloserine Augmented CBT for Panic Disorder

A Phase 3 study testing d-cycloserine and cognitive-behaviour therapy in people with Panic Disorder, run by University of Oxford at 1 site in United Kingdom.

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 determine whether d-cycloserine augments the clinical effects of exposure-based cognitive-behaviour therapy for panic disorder. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Panic Disorder
What is being tested?
d-cycloserine and cognitive-behaviour therapy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
33 participants
Where
1 siteUnited Kingdom
Study dates
Oct 2012to 30 Apr 2018
Phase
Phase 3
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 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • clinical diagnosis of panic disorder
  • at least moderate agoraphobic avoidance

Who cannot join

  • psychoactive medication last 6 weeks
  • exposure-based cognitive-behaviour treatment for panic disorder and agoraphobia during last 3 months
  • female participant who is pregnant or breast-feeding
  • lifetime history of psychosis, bipolar disorder, alcohol, medication or drug abuse or dependence; current primary depressive disorder
  • lifetime history of epilepsy or other significant disease or disorder

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Department of Psychiatry, University of Oxford

    Oxford, OX37JX

Other trials in United Kingdom

About this study

Official title: The Effect of a Single-dose of D-cycloserine on the Basic Effects of Cognitive-behaviour Therapy for Panic Disorder - a Randomized Placebo-controlled Trial

The purpose of this study is to determine whether d-cycloserine augments the clinical effects of exposure-based cognitive-behaviour therapy for panic disorder.

Conditions
Panic Disorder
Being tested
d-cycloserine, placebo, cognitive-behaviour therapy
Keywords
d-cycloserine, cognitive-behaviour therapy, panic disorder
Medical subject headings
Panic Disorder

What participants receive

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

  • d-cycloserineDrug

  • placeboDrug

  • cognitive-behaviour therapyBehavioural

Study groups in NCT01680107
Study groupRoleWhat they receive
d-cycloserineExperimentaloral, capsule, 250 mg, once
Receives: Drug: d-cycloserine; Behavioral: cognitive-behaviour therapy
sugar pillPlacebo comparatororal, capsule, once
Receives: Drug: placebo; Behavioral: cognitive-behaviour therapy

What is being measured

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

  1. self-reported and clinician-rated anxiety and depression measures

    Measured: 6 months

Secondary outcomes (1)
  1. emotional information processing

    Measured: 1 day

Timeline

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

  1. First posted6 Sep 2012 (estimated)
  2. Study startOct 2012
  3. Primary completion31 Oct 2017
  4. Study completion30 Apr 2018

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 3
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
33 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01680107
Sponsor's protocol ID
MRC-01
Other IDs
2012-003191-39
Status last verified
May 2018
First submitted
3 Sep 2012
Last updated
3 May 2018
Results posted
No
Data monitoring committee
Yes

Publications

  • Reinecke A, Nickless A, Browning M, Harmer CJ. Neurocognitive processes in d-cycloserine augmented single-session exposure therapy for anxiety: A randomized placebo-controlled trial. Behav Res Ther. 2020 Jun;129:103607. doi: 10.1016/j.brat.2020.103607. Epub 2020 Mar 19.

    PubMed 32229324

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing d-cycloserine and cognitive-behaviour therapy in people with Panic Disorder, run by University of Oxford at 1 site in United Kingdom.

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 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: stopped early, as of the sponsor's last update on 3 May 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 Kingdom. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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. 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?

self-reported and clinician-rated anxiety and depression measures (time frame: 6 months). 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 NCT01680107, 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 3 May 2018.

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