CClinicalTrials.gg
CompletedNCT02958527Updated May 22, 2023Results posted

Drug Use Investigation Of Effexor (SECONDARY DATA COLLECTION STUDY; SAFETY AND EFFICACY OF EFFEXOR.UNDER JAPANESE MEDICAL PRACTICE)

An observational study in Depression/Depressed State, sponsored by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-05-22.

Sponsored by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
1,408
Ages
18 Years and older
Sex
All
01

Study summary

SECONDARY DATA COLLECTION STUDY; SAFETY AND EFFICACY OF EFFEXOR.UNDER JAPANESE MEDICAL PRACTICE

Read the detailed description

This study will be conducted under the central registration system until the number of subjects who meet the conditions for registration reaches the target number of subjects. 12 weeks from the start date. The patients who completed the 12-week treatment with this product will be observed up until Week 52.

02

Conditions studied

  • Depression/Depressed State

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Keywords

  • Effexor
  • Depression
  • Depressed state
03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 1,408 is above the median of 160 across 1,084 observational studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc. is the lead sponsor of 431 studies on the registry; none are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 8 (89%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

The patients who meet the inclusion criteria and who were registered to this study within 14 days including the start date of treatment with this product will be subjects for this study

Eligibility criteria

Inclusion Criteria:

  • Patients with no experience of using this product who will be administered this product for the first time

Exclusion Criteria:

  • Exclusion criteria are not provided in this study
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
1,408 participants (actual)
Patient registry
No

Groups and cohorts

  • venlafaxine

    Patients with no experience of using time Effexor(venlafaxine) who will be administered time Effexor(venlafaxine)for the first

    Drug: venlafaxine

Interventions

  • Drugvenlafaxine

    The usual adult starting dosage for oral use is 37.5 mg of venlafaxine once daily, which is increased to 75 mg once daily after a meal from 1 week later. The dose may be adjusted within a range not exceeding 225 mg/day according to the patient's age and symptoms. However, the dose should be increased by 75 mg/day at intervals of not less than 1 week.

    Also known as: Effexor

06

What researchers measure

Primary outcomes

  1. Number of Participants With Adverse Drug Reactions

    An adverse drug reaction (ADR) was any untoward medical occurrence attributed to Effexor in a participant who received Effexor. A serious ADR was a ADR resulting in any of the following outcomes or deemed significant for any other reason: death; life-threatening experience (immediate risk of dying); initial or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly. Relatedness to Effexor was assessed by the physician.

    Time frame: 12 weeks from the start date (up until 52 weeks)

Secondary outcomes

  1. Change From Baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) Total Scores at Pre-specified Evaluation Points

    HAM-D17 is a standardized, clinician-administered rating scale that assesses 17 items characteristically associated with depression (symptoms such as depressed mood, work and activities, sleep, suicide, psychomotor agitation/retardation, appetite, sexual interest, anxiety, and somatic symptoms). The items of the HAM-D17 are rated on a scale of 0 to 2 (8 items) or from 0 to 4 (9 items), and the total score ranges from 0 to 52, higher scores indicating more severity. Change from baseline: mean score at observation minus mean score at baseline. Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

    Time frame: 12 weeks from the start date ( up until 52 weeks)

  2. Change From Baseline in the Montgomery - Asberg Depression Rating Scale (MADRS) Total Scores at Pre-specified Evaluation Points

    MADRS is a clinician-administered rating scale that assesses the overall severity of depressive symptoms. The MADRS had a 10-item checklist (apparent sadness, reported sadness, inner tension, reduced sleep, reduced appetite, concentration difficulties, lassitude, inability to feel, pessimistic thoughts, and suicidal thoughts). Items are scored from 0 to 6, and the total score ranges from 0 to 60, higher scores indicating more severity. Change from baseline: mean score at observation minus mean score at baseline. Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

    Time frame: 12 weeks from the start date ( up until 52 weeks)

  3. Clinical Global Impressions-Severity

    CGI-S is a 7-point clinician-administered rating scale that assesses overall severity of the current illness state. The score ranges from 1 to 7, higher scores indicating more affected: "1: normal, not at all ill," "2: borderline mentally ill," "3: mildly ill," "4: moderately ill," "5: markedly ill," "6: severely ill," or "7: among the most extremely ill patients." Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

    Time frame: 12 weeks from the start date (up until 52 weeks)

  4. Changes in the Clinical Global Impressions-Improvement

    CGI-I is a 7-point clinician-administered rating scale that assesses overall improvement of the disease/condition. The score ranges from 1 to 7, higher scores indicating more affected: was assessed as "1: markedly improved," "2: moderately improved," "3: mildly improved," "4: no change," "5: slightly worsened," "6: worsened," or "7: severely worsened." Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

    Time frame: 12 weeks from the start date (up until 52 weeks)

07

Results

Posted May 24, 2021

Participant flow

Participant flow — Overall Study
MilestoneEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
Started1408
Completed1396
Not completed12
Withdrew: Not collected crfs12

Outcome measures

PrimaryNumber of Participants With Adverse Drug Reactions

An adverse drug reaction (ADR) was any untoward medical occurrence attributed to Effexor in a participant who received Effexor. A serious ADR was a ADR resulting in any of the following outcomes or deemed significant for any other reason: death; life-threatening experience (immediate risk of dying); initial or prolonged inpatient hospitalization; persistent or significant disability/incapacity; congenital anomaly. Relatedness to Effexor was assessed by the physician.

Time frame:
12 weeks from the start date (up until 52 weeks)
Reported as:
Number · Participants
Number of Participants With Adverse Drug Reactions
ParticipantsEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
ADR312
Serious ADR4
SecondaryChange From Baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) Total Scores at Pre-specified Evaluation Points

HAM-D17 is a standardized, clinician-administered rating scale that assesses 17 items characteristically associated with depression (symptoms such as depressed mood, work and activities, sleep, suicide, psychomotor agitation/retardation, appetite, sexual interest, anxiety, and somatic symptoms). The items of the HAM-D17 are rated on a scale of 0 to 2 (8 items) or from 0 to 4 (9 items), and the total score ranges from 0 to 52, higher scores indicating more severity. Change from baseline: mean score at observation minus mean score at baseline. Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

Time frame:
12 weeks from the start date ( up until 52 weeks)
Reported as:
Mean · Unit on a scale
Change From Baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) Total Scores at Pre-specified Evaluation Points
Unit on a scaleEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
Week 4 (n=468)-6.0 ± 6.6
Week 8 (n=290)-9.1 ± 7.4
Week 12 (n=667)-12.3 ± 7.6
Week 16 (n=233)-11.2 ± 8.2
Week 24 (n=124)-12.0 ± 8.1
Week 36 (n=116)-12.2 ± 8.8
Week 52 (n=527)-15.2 ± 9.1
SecondaryChange From Baseline in the Montgomery - Asberg Depression Rating Scale (MADRS) Total Scores at Pre-specified Evaluation Points

MADRS is a clinician-administered rating scale that assesses the overall severity of depressive symptoms. The MADRS had a 10-item checklist (apparent sadness, reported sadness, inner tension, reduced sleep, reduced appetite, concentration difficulties, lassitude, inability to feel, pessimistic thoughts, and suicidal thoughts). Items are scored from 0 to 6, and the total score ranges from 0 to 60, higher scores indicating more severity. Change from baseline: mean score at observation minus mean score at baseline. Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

Time frame:
12 weeks from the start date ( up until 52 weeks)
Reported as:
Mean · Unit on a scale
Change From Baseline in the Montgomery - Asberg Depression Rating Scale (MADRS) Total Scores at Pre-specified Evaluation Points
Unit on a scaleEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
Week 4 (n=298)-7.5 ± 9.0
Week 8 (n=175)-11.6 ± 10.7
Week 12 (n=501)-15.4 ± 9.6
Week 16 (n=173)-15.0 ± 11.0
Week 24 (n=93)-13.9 ± 10.0
Week 36 (n=81)-15.7 ± 10.6
Week 52 (n=414)-19.6 ± 10.9
SecondaryClinical Global Impressions-Severity

CGI-S is a 7-point clinician-administered rating scale that assesses overall severity of the current illness state. The score ranges from 1 to 7, higher scores indicating more affected: "1: normal, not at all ill," "2: borderline mentally ill," "3: mildly ill," "4: moderately ill," "5: markedly ill," "6: severely ill," or "7: among the most extremely ill patients." Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

Time frame:
12 weeks from the start date (up until 52 weeks)
Reported as:
Number · Participants
Clinical Global Impressions-Severity
ParticipantsEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 1EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 2EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 3EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 4EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 5EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 6EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Baseline 7
Week 12 1: Normal, not at all ill021956971
Week 12 2: Borderline mentally ill01459838151
Week 12 3: Mildly ill002413352100
Week 12 4: Moderately ill0024561100
Week 12 5: Markedly ill00021370
Week 12 6: Severely ill0000150
Week 12 7: Among the most extremely ill patients0000000
Week 52 1: Normal, not at all ill00277640161
Week 52 2: Borderline mentally ill02339247140
Week 52 3: Mildly ill0015693970
Week 52 4: Moderately ill000211420
Week 52 5: Markedly ill0002510
Week 52 6: Severely ill0001040
Week 52 7: Among the most extremely ill patients0000000
SecondaryChanges in the Clinical Global Impressions-Improvement

CGI-I is a 7-point clinician-administered rating scale that assesses overall improvement of the disease/condition. The score ranges from 1 to 7, higher scores indicating more affected: was assessed as "1: markedly improved," "2: moderately improved," "3: mildly improved," "4: no change," "5: slightly worsened," "6: worsened," or "7: severely worsened." Evaluation was performed at Week 4, 8, 12, 16, 24, 36, and 52.

Time frame:
12 weeks from the start date (up until 52 weeks)
Reported as:
Number · Participants
Changes in the Clinical Global Impressions-Improvement
ParticipantsEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Week 12EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride) Week 52
1: Markedly improved199235
2: Moderately improved175178
3: Mildly improved21288
4: No change7028
5: Slightly worsened53
6: Worsened31
7: Severely worsened00

Adverse events

Collected over 12 weeks from the start date (up until 52 weeks). Non-serious events are listed at a 0.1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)0/1,334 (0%)20/1,334 (1.5%)495/1,334 (37.1%)
Most frequent serious events
Showing 10 of 19
Most frequent serious events
EventEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
DepressionPsychiatric disorders2/1334
Suicidal ideationPsychiatric disorders2/1334
Alcoholic pancreatitisGastrointestinal disorders1/1334
Jaundice cholestaticHepatobiliary disorders1/1334
Liver disorderHepatobiliary disorders1/1334
Anaphylactic shockImmune system disorders1/1334
PneumoniaInfections and infestations1/1334
Meniscus injuryInjury, poisoning and procedural complications1/1334
Subdural haematomaInjury, poisoning and procedural complications1/1334
RhabdomyolysisMusculoskeletal and connective tissue disorders1/1334
Most frequent other events
Showing 10 of 63
Most frequent other events
EventEFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
NauseaGastrointestinal disorders76/1334
SomnolenceNervous system disorders53/1334
InsomniaPsychiatric disorders39/1334
ConstipationGastrointestinal disorders36/1334
MalaiseGeneral disorders26/1334
DizzinessNervous system disorders25/1334
HeadacheNervous system disorders23/1334
PalpitationsCardiac disorders13/1334
Decreased appetiteMetabolism and nutrition disorders13/1334
Hepatic function abnormalHepatobiliary disorders12/1334

Baseline characteristics

A total of 1408 participants were enrolled in this study. Of the 1396 participants who completed the study, 62 participants were excluded from the safety analysis set due to the following reasons: no adverse event information (no visit after first day of treatment)(57 participants), no drug administration (3 participants), protocol violation (2 participants).

Age, Customized
Age, Customized(Participants)EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
<15 years1
≥15 and <65 years1144
≥65 years189
Sex: Female, Male
Sex: Female, Male(Participants)EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
Female687
Male647
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)EFFEXOR SR CAPSULES (Venlafaxine Hydrochloride)
08

Study locations

No study locations are listed for this record.

09

References and documents

Study documents

  • Study protocol · Dec 1, 2018
  • Statistical analysis plan · May 11, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 22, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02958527
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Responsible party
Sponsor
First posted
Nov 8, 2016
Start date
Oct 3, 2016
Primary completion
May 11, 2020
Completion
May 11, 2020
Results posted
May 24, 2021
Last update
May 22, 2023

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

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

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This study is completed, as verified in Jun 2021. You cannot join it, but the record below documents what was studied.

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