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Major Depressive DisorderPhase 3NCT00831415

Study Evaluating Long-Term Safety of Desvenlafaxine Succinate Sustained Release With Japanese Adult Subjects in Major Depressive Disorder (MDD)

A Phase 3 study testing desvenlafaxine succinate sustained release tablets in people with Major Depressive Disorder, run by Pfizer at 17 sites in Japan.

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 primary objective of this study is to evaluate the long-term safety of desvenlafaxine succinate sustained release tablets during 10-month open-label treatment of Japanese subjects with major depressive disorder (MDD). Read more about this study

Who is it for?
Ages 20 years and older
Conditions the study is for
Major Depressive Disorder
What is being tested?
desvenlafaxine succinate sustained release tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
304 participants
Where
17 sitesJapan
Study dates
Mar 2009to Mar 2011
Phase
Phase 3
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 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Outpatients who have completed double-blind therapy in short-term study for the indication of major depressive disorder (MDD), including scheduled evaluations, with no major protocol violations and no study events that, in the opinion of the investigator, would preclude the subject's entry into the long-term, open-label study.

Who cannot join

  • Clinically important abnormalities on baseline (day 56 of the short-term study) physical examination, or any unresolved clinically significant abnormalities on electrocardiogram (ECG), laboratory test results, or vital signs recorded before day 56 in the previous short-term study for the indication of MDD.

Trial locations and contacts

17 sites in 1 country.

17 sites in 1 country

Japan17 sites
  • Pfizer Investigational Site

    Aichi

  • Pfizer Investigational Site

    Chiba

  • Pfizer Investigational Site

    Fukuoka

  • Pfizer Investigational Site

    Fukushima

  • Pfizer Investigational Site

    Gunma

  • Pfizer Investigational Site

    Hiroshima

  • Pfizer Investigational Site

    Hokkaido

  • Pfizer Investigational Site

    Hyōgo

  • Pfizer Investigational Site

    Ishikawa

  • Pfizer Investigational Site

    Kanagawa

  • Pfizer Investigational Site

    Kumamoto

  • Pfizer Investigational Site

    Kyoto

  • Pfizer Investigational Site

    Osaka

  • Pfizer Investigational Site

    Saga

  • Pfizer Investigational Site

    Saitama

  • Pfizer Investigational Site

    Shiga

  • Pfizer Investigational Site

    Tokyo

Other trials in Japan

About this study

Official title: A 10-Month Open-Label Evaluation Of The Long-Term Safety Of Desvenlafaxine Succinate Sustained Release In Japanese Adults With Major Depressive Disorder

The primary objective of this study is to evaluate the long-term safety of desvenlafaxine succinate sustained release tablets during 10-month open-label treatment of Japanese subjects with major depressive disorder (MDD).

The secondary objective is to evaluate the long-term response of subjects receiving desvenlafaxine succinate sustained release tablets by clinical global evaluation, general well-being and absence of symptoms.

Being tested
desvenlafaxine succinate sustained release tablets
Keywords
Open-label Long-term extension study
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 tabletsDrug

    Also called DVS-233; Pristiq

    25-mg or 50-mg DVS SR tablets taken orally, once daily, at the same time each day. 100 mg dose will be supplied as 2 tablets of 50-mg tablet.

Study groups in NCT00831415
Study groupRoleWhat they receive
1ExperimentalDVS SR
Receives: Drug: desvenlafaxine succinate sustained release tablets

What is being measured

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

  1. Change From Baseline in Hamilton Psychiatric Scale for Depression-17 Item (HAM-D17) Score

    HAM-D17 is a standardized, clinician-administered rating scale that assesses 17 items characteristically associated with major depression. Items are scored on either a 3-point (0 to 2) or a 5-point scale (0 to 4) with 0=none/absent and 4=most severe, for a maximum total score of 50. Higher scores indicate greater severity. FOT evaluation is defined as the last "on-therapy" evaluation, regardless of the number of days on therapy. Analysis on Observed cases (non-missing data) and Last observation carried forward (LOCF); LOCF method of imputation for any missing value at any visit.

    Measured: Baseline (Extension Study) up to Day 308 or Final On-Therapy (FOT) Evaluation

  2. Percentage of Participants With Adverse Events (AEs) or Serious Adverse Events (SAEs)

    Any untoward medical occurrence in a participant who received study treatment was considered an AE without regard to possibility of causal relationship. An AE resulting in any of the following outcomes, or deemed to be significant for any other reason, was considered to be an SAE: death; initial or prolonged inpatient hospitalization; a life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; or congenital anomaly.

    Measured: Baseline (Extension Study) up to Day 329 or 15 days after last dose of study treatment

Secondary outcomes (2)
  1. Number of Participants With Categorical Scores on Clinical Global Impression-Improvement (CGI-I)

    CGI-I is a 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected.

    Measured: Day 308 or FOT Evaluation

  2. Change From Baseline in Clinical Global Impression-Severity of Illness [CGI-S] Score

    CGI-S is a 7-point clinician rated scale to assess severity of current illness state. Range is 1 (normal - not ill at all) to 7 (among the most extremely ill). Higher score = more affected.

    Measured: Baseline (Extension Study) up to Day 308 or FOT Evaluation

Timeline

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

  1. First posted29 Jan 2009 (estimated)
  2. Study startMar 2009
  3. Primary completionMar 2011
  4. Study completionMar 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 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
304 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00831415
Sponsor's protocol ID
3151A1-3350
Other IDs
B2061002
Status last verified
Nov 2018
First submitted
27 Jan 2009
Last updated
7 Dec 2018
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing desvenlafaxine succinate sustained release tablets in people with Major Depressive Disorder, run by Pfizer at 17 sites in Japan.

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 1 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: finished, as of the sponsor's last update on 7 Dec 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 17 sites in Japan. 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. 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?

Yes. Results are posted in the registry (first posted 30 Jan 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?

Change From Baseline in Hamilton Psychiatric Scale for Depression-17 Item (HAM-D17) Score (time frame: Baseline (Extension Study) up to Day 308 or Final On-Therapy (FOT) Evaluation). 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?
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 7 Dec 2018.

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