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Major Depressive DisorderPhase 4NCT01056289

Study Comparing Discontinuation Symptoms Of DVS SR In Subjects With Major Depressive Disorder (MDD)

A Phase 4 study testing Desvenlafaxine Succinate Sustained-Release Formulation 50 mg and Desvenlafaxine Succinate Sustained-Release Formulation 25 mg in people with Major Depressive Disorder, run by Pfizer.

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

Study Comparing Discontinuation Symptoms in subjects with Major Depressive Disorder treated for 24 Weeks with Open-label 50 mg Desvenlafaxine Succinate Sustained-Release Formulation (DVS SR) Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Major Depressive Disorder
What is being tested?
Desvenlafaxine Succinate Sustained-Release Formulation 50 mg and Desvenlafaxine Succinate Sustained-Release Formulation 25 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
480 participants
Where
No sites listed yet
Study dates
Mar 2010to Feb 2011
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Primary Diagnosis of Major Depressive Disorder
  • Hamilton Psychiatric Rating Scale for Depression-17-Item score of greater than or equal to 14 at baseline

Who cannot join

  • Current psychoactive substance abuse or dependence, manic episode, or a lifetime diagnosis of bipolar or psychotic disorder
  • Potentially violent to others or is at significant risk for suicide
  • History or current evidence of gastrointestinal disease or history of surgery known to interfere with absorption or excretion
  • Known presence of raised intraocular pressure or history of narrow angle glaucoma

About this study

Official title: A Randomized, Double-Blind, Parallel Group Study To Compare Discontinuation Symptoms In Abrupt Discontinuation Versus A 1-Week Tapering Regimen In Subjects With MDD Treated For 24 Weeks With Open-Label 50 mg DVS SR Formulation

Study Comparing Discontinuation Symptoms in subjects with Major Depressive Disorder treated for 24 Weeks with Open-label 50 mg Desvenlafaxine Succinate Sustained-Release Formulation (DVS SR)

Being tested
Desvenlafaxine Succinate Sustained-Release Formulation 50 mg, Desvenlafaxine Succinate Sustained-Release Formulation 25 mg, Placebo
Medical subject headings
Depressive Disorder, Major

What participants receive

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

  • Desvenlafaxine Succinate Sustained-Release Formulation 50 mgDrug

    DVS SR 50 mg Reference Group/Arm, oral tablet, 2 tablets/day during the first week and 1 tablet/day during weeks 2 through 4 of the double-blind treatment phase.

  • Desvenlafaxine Succinate Sustained-Release Formulation 25 mgDrug

    DVS SR 25 mg Taper Group/Arm, oral tablet, 2 tablets/day during the first week and 1 tablet/day during weeks 2 through 4 of the double-blind treatment phase.

  • PlaceboDrug

    DVS SR Placebo Abrupt Discontinuation Group/Arm, oral tablet, 2 tablets/day during the first week and 1 tablet/day during weeks 2 through 4 of the double-blind treatment phase.

Study groups in NCT01056289
Study groupRoleWhat they receive
Desvenlafaxine Succinate Sustained-Release Formulation 50 mgActive comparatorNot described
Receives: Drug: Desvenlafaxine Succinate Sustained-Release Formulation 50 mg
Desvenlafaxine Succinate Sustained-Release Formulation 25 mgActive comparatorNot described
Receives: Drug: Desvenlafaxine Succinate Sustained-Release Formulation 25 mg
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. Total Discontinuation - Emergent Signs and Symptoms (DESS) Score Over the First 2 Weeks of the Double-blind Phase

    Clinician-administered 43-item assessment to evaluate discontinuation-emergent symptoms resulting from withdrawal from study treatment. Total score=sum of number of new symptoms and old (but worse) symptoms (score=1) and old and unchanged symptom, absent, or old symptom but improved (score=0); total possible range 0 to 43. Higher score=more symptoms. New symptom=any symptom that appeared within 7 days before DESS administration; old symptom=any symptom that appeared 7 days before DESS administration and continued into 7-day period. DESS calculated as 2*mean(of DESSDB Week 1, DESSDB Week 2).

    Measured: Double-blind phase: Week 1 (Study Day 175), Week 2 (Study Day 182)

Secondary outcomes (2)
  1. Percentage of Participants With Taper Adverse Events (AEs) in the Double-blind Phase

    Any untoward medical occurrence in a patient who received study drug was considered an AE without regard to possibility of causal relationship. Taper-emergent AEs (TPAEs) are those events which occurred during the double-blind period but did not occur during the last 7 days of the on-therapy period or existed during the last 7 days and worsened in the double-blind period.

    Measured: Double-blind phase: Baseline (Study Day 168) up to Week 4 (Study Day 196)

  2. Percentage of Participants Who Were Unable to Successfully Complete Tapering of the Study Drug Because of the Number and/or Severity of Their Discontinuation Symptoms

    Discontinuation symptoms may occur following abrupt cessation of serotonergic antidepressants in a minority of participants following short-term treatment of an episode of Major Depressive Disorder (MDD). The symptoms include emotional and somatic symptoms such as dizziness, nausea, and paresthesia and typically appear within 2 to 3 days of reducing the dose or stopping the antidepressant medication. Discontinuation symptoms are usually mild and resolve spontaneously within a week in the majority of patients, though a minority can have intense and prolonged symptoms.

    Measured: Double-blind phase: Baseline (Study Day 168) up to Week 4 (Study Day 196)

Timeline

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

  1. First posted26 Jan 2010 (estimated)
  2. Study startMar 2010
  3. Primary completionFeb 2011
  4. Study completionFeb 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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
480 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01056289
Sponsor's protocol ID
3151A1-4437
Other IDs
B2061010
Status last verified
Oct 2011
First submitted
22 Jan 2010
Last updated
28 Feb 2012
Data monitoring committee
No

Publications

  • Ninan PT, Musgnung J, Messig M, Buckley G, Guico-Pabia CJ, Ramey TS. Incidence and Timing of Taper/Posttherapy-Emergent Adverse Events Following Discontinuation of Desvenlafaxine 50 mg/d in Patients With Major Depressive Disorder. Prim Care Companion CNS Disord. 2015 Feb 5;17(1):10.4088/PCC.14m01715. doi: 10.4088/PCC.14m01715. eCollection 2015.

    PubMed 26137358

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Desvenlafaxine Succinate Sustained-Release Formulation 50 mg and Desvenlafaxine Succinate Sustained-Release Formulation 25 mg in people with Major Depressive Disorder, run by Pfizer.

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 4 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 28 Feb 2012. Status can change between updates, so confirm with the study contact before making plans.

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 17 Feb 2012). 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?

Total Discontinuation - Emergent Signs and Symptoms (DESS) Score Over the First 2 Weeks of the Double-blind Phase (time frame: Double-blind phase: Week 1 (Study Day 175), Week 2 (Study Day 182)). 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 NCT01056289, 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 28 Feb 2012.

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