CClinicalTrials.gg
CompletedNCT00770289B2411003Updated Aug 31, 2012Results posted

Study Comparing Remission Rates, in Patients With Major Depressive Disorder (MDD)

An observational study in Major Depressive Disorder, sponsored by Pfizer. Completed at 3 sites in Greece. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2012-08-31.

Sponsored by Pfizer · Observational

Study type
Observational
Model
Cohort
Enrollment
851
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Tools known as 'depression scales 'are widely used as assessments to evaluate a patient's response to treatment. The purpose of this study is the evaluation of the remission rates for patients with MDD. The evaluation will involve the use of HAM-D 17, and HAM-D 7 questionnaires and the comparison of those questionnaires.

Read the detailed description

12 weeks random

02

Conditions studied

03

In context

Depressive Disorder

4,845 studies on the registry are indexed under Depressive Disorder; 514 are open to participants now.

This study's enrollment of 851 is above the median of 150 across 653 observational studies indexed under Depressive Disorder.

Browse Depressive Disorder studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients diagnosed with MDD who are either changing treatment or have never received treatment.

Inclusion criteria

  • Outpatients
  • 18-75 years old
  • Patients diagnosed with MDD according to DSM IV without psychotic symptoms
  • HAM-D17 > or = 18 on inclusion
  • Patients receiving treatment for the first time or changing treatment based on their doctor's decision

Exclusion criteria

Exclusion Criteria:

  • Subjects with potentially problematic compliance
  • Subjects participating in an interventional trial within the last 3 months
05

Study design

Observational model
Cohort
Enrollment
851 participants (actual)

Groups and cohorts

  • Single group

    Other: Cohort

Interventions

  • OtherCohort

    Cohort (Patients diagnosed with MDD who are either changing treatment or have never received treatment).

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Remission Based on Hamilton Depression Scale (HAM-D)

    Remission according to HAM-D: HAM-D17 score less than or equal to (=\<) 7 or a HAM-D7 score =\< 3. HAM-D17: standardized, clinician-administered rating scale; assesses 17 items characteristically associated with major depression. Individual 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. Total score: 0 to 66; higher score indicates more depression. HAM-D7: subset of HAM-D17; assesses 7 items associated with major depression. Total score: 0 to 26; higher score indicates more depression.

    Time frame: Week 12

Secondary outcomes

  1. Percentage of Participants With Remission Based on Beck Depression Inventory (BDI)

    Remission according to BDI: BDI score less than (\<) 10. BDI: 21 item participant rated inventory evaluates depression symptoms, cognition, and physical symptoms of fatigue, weight loss, lack of interest in sex. Individual items are scored on a 4 point scale (0 to 3), with 0=none/absent and 3=most severe. Total score: 0 to 63; higher score indicates more depression.

    Time frame: Week 12

  2. Hamilton Depression Scale 17 (HAM-D17), HAM-D7 and Beck Depression Inventory (BDI)

    HAM-D17: clinician-administered scale; assesses 17 items related to major depression (MD). Individual items scored on 3 point (0 to 2) or 5 point scale (0 to 4); 0=absent, 4=most severe. Total score: 0 to 66. HAM-D7: subset of HAM-D17; assesses 7 items related to MD. Total score: 0 to 26. BDI: 21 item participant rated inventory evaluates depression symptoms, cognition, physical symptoms of fatigue, weight loss, lack of interest in sex. Individual item scored on 4 point scale (0 to 3); 0=absent, 3=most severe. Total score: 0 to 63. For all the 3 scales, higher score represented more depression.

    Time frame: Baseline, Week 12

  3. Number of Participants With Residual Symptoms in Case of Non Remission

    Number of participants with residual symptoms who did not achieve remission was assessed. Remission according to HAM-D: HAM-D17 score =\< 7 or HAM-D7 score =\<3. Remission according to BDI: BDI score \<10. HAM-D17: assessed 17 items associated with MD. Individual items scored on 3 point (0 to 2) or 5 point scale (0 to 4); 0=absent, 4=most severe. Total score: 0 to 66. HAM-D7: assessed 7 items associated with MD. Total score: 0 to 26. BDI assessed severity of depressive symptoms. Individual items are scored on a 4 point scale (0 to 3), with 0=none/absent and 3=most severe. The total score: 0 to 63. For all the 3 scales, higher score indicated more severe depression.

    Time frame: Week 12

07

Results

Posted Aug 31, 2012
Limitations and caveats
Protocol did not indicate primary or secondary endpoints and designation of endpoints as primary or secondary endpoints was arbitrary.

Participant flow

Participant flow — Overall Study
MilestoneAll Participants
Started851
Completed845
Not completed6
Withdrew: Other6

Outcome measures

PrimaryPercentage of Participants With Remission Based on Hamilton Depression Scale (HAM-D)

Remission according to HAM-D: HAM-D17 score less than or equal to (=\<) 7 or a HAM-D7 score =\< 3. HAM-D17: standardized, clinician-administered rating scale; assesses 17 items characteristically associated with major depression. Individual 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. Total score: 0 to 66; higher score indicates more depression. HAM-D7: subset of HAM-D17; assesses 7 items associated with major depression. Total score: 0 to 26; higher score indicates more depression.

Time frame:
Week 12
Reported as:
Number · Percentage of participants
Percentage of Participants With Remission Based on Hamilton Depression Scale (HAM-D)
Percentage of participantsHamilton Depression Scale (HAM-D)
Percentage of Participants With Remission Based on Hamilton Depression Scale (HAM-D)54.4 (51.1 to 57.8)
SecondaryPercentage of Participants With Remission Based on Beck Depression Inventory (BDI)

Remission according to BDI: BDI score less than (\<) 10. BDI: 21 item participant rated inventory evaluates depression symptoms, cognition, and physical symptoms of fatigue, weight loss, lack of interest in sex. Individual items are scored on a 4 point scale (0 to 3), with 0=none/absent and 3=most severe. Total score: 0 to 63; higher score indicates more depression.

Time frame:
Week 12
Reported as:
Number · Percentage of participants
Percentage of Participants With Remission Based on Beck Depression Inventory (BDI)
Percentage of participantsBeck Depression Inventory (BDI)
Percentage of Participants With Remission Based on Beck Depression Inventory (BDI)64.6 (61.4 to 67.8)
SecondaryHamilton Depression Scale 17 (HAM-D17), HAM-D7 and Beck Depression Inventory (BDI)

HAM-D17: clinician-administered scale; assesses 17 items related to major depression (MD). Individual items scored on 3 point (0 to 2) or 5 point scale (0 to 4); 0=absent, 4=most severe. Total score: 0 to 66. HAM-D7: subset of HAM-D17; assesses 7 items related to MD. Total score: 0 to 26. BDI: 21 item participant rated inventory evaluates depression symptoms, cognition, physical symptoms of fatigue, weight loss, lack of interest in sex. Individual item scored on 4 point scale (0 to 3); 0=absent, 3=most severe. Total score: 0 to 63. For all the 3 scales, higher score represented more depression.

Time frame:
Baseline, Week 12
Reported as:
Mean · units on a scale
Hamilton Depression Scale 17 (HAM-D17), HAM-D7 and Beck Depression Inventory (BDI)
units on a scaleHamilton Depression Scale (HAM-D17)Hamilton Depression Scale (HAM-D7)Beck Depression Inventory (BDI)
Baseline25.18 ± 5.3813.53 ± 3.2231.45 ± 8.95
Week 127.31 ± 6.034.07 ± 3.519.03 ± 8.03
Change from baseline at Week 1217.89 ± 6.749.48 ± 3.8222.42 ± 10.02
Statistical analysis
  • Hamilton Depression Scale (HAM-D17) vs Hamilton Depression Scale (HAM-D7) · Pearson's correlation · p = <0.0001 (The statistical testing was done at alpha = 0.05.) · Pearson's correlation coefficient: 0.899 · 95% CI 0.886 to 0.911
  • Hamilton Depression Scale (HAM-D17) vs Beck Depression Inventory (BDI) · Pearson's correlation · p = <0.0001 (The statistical testing was done at alpha = 0.05.) · Pearson's correlation coefficient: 0.797 · 95% CI 0.771 to 0.820
  • Hamilton Depression Scale (HAM-D7) vs Beck Depression Inventory (BDI) · Pearson's correlation · p = <0.0001 (The statistical testing was done at alpha = 0.05.) · Pearson's correlation coefficient: 0.765 · 95% CI 0.736 to 0.791
SecondaryNumber of Participants With Residual Symptoms in Case of Non Remission

Number of participants with residual symptoms who did not achieve remission was assessed. Remission according to HAM-D: HAM-D17 score =\< 7 or HAM-D7 score =\<3. Remission according to BDI: BDI score \<10. HAM-D17: assessed 17 items associated with MD. Individual items scored on 3 point (0 to 2) or 5 point scale (0 to 4); 0=absent, 4=most severe. Total score: 0 to 66. HAM-D7: assessed 7 items associated with MD. Total score: 0 to 26. BDI assessed severity of depressive symptoms. Individual items are scored on a 4 point scale (0 to 3), with 0=none/absent and 3=most severe. The total score: 0 to 63. For all the 3 scales, higher score indicated more severe depression.

Time frame:
Week 12
Reported as:
Number · participants
Number of Participants With Residual Symptoms in Case of Non Remission
participantsAll Participants
Emotional disorders59
Sleep disorders35
Behavioral disorders22
Anxiety disorders22
Psychosomatic disorders20
Sexual disorders4
No improvement3
Psychotic disorders1

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
All Participants———

Baseline characteristics

Age Continuous
Age Continuous(years)All Participants
Mean46.2 ± 13.2
Sex/Gender, Customized
Sex/Gender, Customized(participants)All Participants
Female528
Male322
Not available1
08

Study locations

3 sites
  • Pfizer Investigational Site
    Haidari, Athens 12461, Greece
  • Pfizer Investigational Site
    Haidari, Athens 12462, Greece
  • Pfizer Investigational Site
    Ilissia, Athens 11528, Greece
09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00770289
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Oct 9, 2008
Start date
May 2008
Primary completion
Dec 2009
Completion
Dec 2009
Results posted
Aug 31, 2012
Last update
Aug 31, 2012

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2012. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion