Major Depressive DisorderPhase 3NCT01441440
Venlafaxine ER Phase 3 Study for Major Depressive Disorder (MDD)
A Phase 3 study testing venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) in people with Major Depressive Disorder, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 63 sites in Japan.
Trial summary
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy and safety of venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose), compared to placebo. 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?
- venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 538 participants
- Where
- 63 sitesJapan
- Study dates
- Nov 2011to Mar 2014
- 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
- Outpatient status.
- A primary diagnosis of MDD based on the criteria in the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM- IV-TR), single or recurrent episode, without psychotic features.
- Depressive symptoms for at least 90 days in single episode and for at least 28 days in recurrent episode before the screening visit.
- A MADRS total score ≥26 at the screening and baseline visits. And change of MADRS total score at baseline is not over 25% from the screening visit.
- A QIDS16-J-SR score ≥16 at the screening and baseline visits.
- A score ≥4 on the Clinical Global Impressions Scale-Severity (CGI-S) at the screening and baseline visits.
Who cannot join
- Subjects who concurrently have Axis II personality disorder or mental retardation according to DSM-IV diagnostic criteria.
- Subjects who meet DSM-IV criteria for current or past history of Schizophrenia, Paranoid Disorders, or any other Psychotic Disorders.
- Subjects who meet DSM-IV criteria for current or past history of Dementia.
- Subjects who meet DSM-IV criteria for current or past history of bipolar disorder, Posttraumatic Stress Disorder (PTSD) or Obsessive Compulsive Disorder (OCD).
- Subjects who meet DSM-IV criteria for current (within 12 months before the screening visit) generalized anxiety disorder, panic disorder, or social anxiety disorder considered by the investigator to be primary (causing a higher degree of distress or impairment than MDD).
- Subjects with a first degree relative with bipolar disorder.
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- Subjects who are actively suicidal.
- History of non-responsive to 2 antidepressant treatment (at least 6-week usage for each) for the past or current episodes.
- History of Electroconvulsive therapy (ECT) at any time in the past.
- History of chronic treatment with benzodiazepines for longer than 6 months before the screening visit (Excluding subjects who have taken PRN benzodiazepine use, < 3 times/week).
- Any unstable hepatic, renal, pulmonary, cardiovascular (including uncontrolled hypertension), ophthalmologic, neurologic, or any other medical condition that in the investigator's judgment, will substantially increase the risk associated with the subject's participation in and completion of, the study.
- Known presence of raised intraocular pressure or history or presence of narrow angle glaucoma.
- Myocardial infarction within 180 days of the screening visit.
- Clinically important abnormalities, as determined by the investigator, on screening physical examination, electrocardiogram (ECG) or laboratory tests.
- Use of prohibited treatments
Trial locations and contacts
63 sites in 1 country.
63 sites in 1 country
Japan63 sites
Suzuki Hospital
Adachi-ku, Tokyo, 120-0033
Arai Clinic
Amagasaki, Hyōgo, 660-0882
Takahashi Psychiatric Clinic
Ashiya, Hyōgo, 659-0093
Iidabashi Mental Clinic
Chiyoda-ku, Tokyo, 102-0071
Tutujigaoka Mental Clinic
Chōfu, Tokyo, 182-0006
Hatsuki Shinryo Clinic
Fukuoka, Fukuoka, 814-0104
Sugahara Tenjin Clinic
Fukuoka, 810-0001
Hiro Mental Clinic Tenjinminami
Fukuoka, 810-0004
Tenjin Mental Clinic
Fukuoka, 810-0004
Medical Corporation Shinseikai Kaku Mental Clinic
Fukuoka, 810-0022
Ange Psychiatric Clinic
Fukuoka, 810-0035
Stress Care Yoshimura Clinic
Fukuoka, 810-0041
Kuranari Psychiatry Clinic
Fukuoka, 810-0801
Akasaka Kato Clinic
Fukuoka, 8100041
Imato Clinic
Fukuoka, 815-0041
Fujikawa Clinic
Hatsukaichi, Hiroshima, 738-0023
Kuginuki Clinic
Hirakata, Osaka, 573-0032
Tsuji Mental Clinic
Hiroshima, 731-0112
Nippon Medical School Chiba Hokusoh Hospital
Inzai, Chiba, 270-1694
Medical Corporation Toyokokai Tawara Clinic
Kanagawa, 221-0835
National Hospital Organization Kanazawa Medical Center
Kanazawa, Ishikawa-ken, 920-8650
Fuku Clinic
Katsushika-ku, Tokyo, 125-0041
Medical Corporation Seishinkai Kishiro Mental Clinic
Kawasaki, Kanagawa, 214-0014
Hatakeyama Clinic
Kitakyushu-shi, Fukuoka, 802-0064
Tatsuta Clinic
Kobe, Hyōgo, 651-0097
Ikeuchi Psycho Induced Internal Med.Clinic
Kobe, Hyōgo, 655-0037
Yuge Hospital
Kumamoto, Kumamoto, 861-8002
Hayakawa Clinic
Kure, Hiroshima, 737-0111
Sagaarashiyama-Tanaka Clinic
Kyoto, 616-8421
SAKURAZAKA CLINIC SophyAnce
Minato-ku, Tokyo, 106-0032
Akasaka Clinic
Minato-ku, Tokyo, 107-0052
Hida Clinic
Nagareyama, Chiba, 270-0163
Narumi Himawari Clinic
Nagoya, Aichi-ken, 458-0801
Mizuho Clinic
Nagoya, Aichi-ken, 467-0806
Heartcare Ginga Clinic
Nakano-ku, Tokyo, 164-0012
Harikae mental clinic
Nakano-Ku, Tokyo, 164-0001
Kyo Mental Clinic
Nara, 631-0036
Nakamoto Clinic
Noda, Chiba, 278-0033
Shiranui Hospital
Omuta, Fukuoka, 836-0004
Oka Clinic
Omuta, Fukuoka, 836-0044
JIN clinic
Osaka, 530-0041
Shibamoto Clinic
Osakasayama-shi, Osaka, 589-0011
Yutaka Clinic
Sagamihara, Kanagawa, 252-0303
Sakai Mental Clinic
Saitama, Saitama, 330-0062
Misato Ekimae Clinic
Saitama, 341-0018
Kawamura Mental Clinic
Sapporo, Hokkaido, 001-0023
Maruyamapark Mentalclinic
Sapporo, Hokkaido, 064-0820
Sangenjaya Nakamura Mental Clinic
Setagaya-ku, Tokyo, 154-0004
Komazawa Mental Clinic
Setagaya-ku, Tokyo, 154-0012
Omotesando Mental Clinic
Shibuya-ku, Tokyo, 150-0001
Maynds Tower Mental Clinic
Shibuya-ku, Tokyo, 151-0053
Yoyoginomori Mental Clinic
Shibuyaku, Tokyo, 151-0053
Meguro sta.East Mental Clinic
Shinagawa-ku, Tokyo, 141-0021
Himeno Tomomi Clinic
Shinagawa-Ku, Tokyo, 141-0032
Nishi-Shinjuku Concieria Clinic
Shinjuku-ku, Tokyo, 160-0023
Tamaki Clinic
Shinjuku-ku, Tokyo, 160-0023
Kagurazaka Stress Clinic
Shinjuku-ku, Tokyo, 162-0825
Tokyo Kosei Nenkin Hospital
Shinjuku-ku, Tokyo, 162-8543
Tokyo Women's Medical University Hospital
Shinjuku-ku, Tokyo, 162-8666
Eto Mental Clinic Meguro
Tokyo, 142-0021
Himorogi Psychiatric Institute
Toshima-ku, Tokyo, 170-0002
Azamino Mental Clinic
Yokohama, Kanagawa, 225-0011
Shioiri Mental Clinic
Yokosuka, Kanagawa, 238-0042
About this study
Official title: A Randomized, Double-blind, Placebo Controlled, Multicenter Study To Evaluate The Efficacy And Safety Of Venlafaxine Er In Adult Outpatients With Major Depressive Disorder
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy and safety of venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose), compared to placebo. This study consists of 2 week screening phase, 8 week treatment phase and 2 week tapering phase. The follow-up visit will be evaluated after 2 weeks of last study medication dosing.
- Conditions
- Major Depressive Disorder
- Being tested
- venlafaxine ER 75 mg/day (fixed dose), venlafaxine ER 75 mg/day to 225 mg/day (flexible dose), Placebo
- Keywords
- venlafaxine ER, Major depressive disorder, Japan, placebo-controlled
- 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.
venlafaxine ER 75 mg/day (fixed dose)Drug
Treatment phase: 8 weeks (37.5 mg/day for 1st week and 75 mg/day for 7 weeks), oral administration Tapering phase: 2 weeks (37.5 mg/day for the 1st week and placebo for the 2nd week), oral administration
venlafaxine ER 75 mg/day to 225 mg/day (flexible dose)Drug
Treatment phase: 8 weeks (37.5 mg/day for the 1st week, 75 mg/day for the 2nd weeks, 75-150 mg for the 3rd week, 75-225 mg/day for the rest of 5 weeks), oral administration Tapering phase: 2 weeks (75/37.5 mg/day for the 1st week and 37.5 mg/day/placebo for the 2nd week), oral administration
PlaceboDrug
Treatment phase: 8 weeks (placebo), oral administration Tapering phase: 2 weeks (placebo), oral administration
| Study group | Role | What they receive |
|---|---|---|
| venlafaxine ER 75 mg/day (fixed dose) | Experimental | Not described Receives: Drug: venlafaxine ER 75 mg/day (fixed dose) |
| venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) | Experimental | Not described Receives: Drug: venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) |
| Placebo | Placebo comparator | Not described Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in 17-item Hamilton Raing Scale for Depression (HAM-D17) Total Score at Week 8 or Early Termination
HAM-D17 is a standardized, clinician-administered rating scale that assesses 17 items characteristically associated with major 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 or 0 to 4, and the total score ranges from 0 to 52. Higher scores indicate more severe symptoms. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
Measured: Baseline, Week 8 or Early termination
Secondary outcomes (5)
Changes From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 8 or Early Termination
MADRS is a scale used in subjects with major depressive disorder to measure the overall severity of depressive symptoms. It is a 10 item, clinician-rated scale that assesses treatment-sensitive change by evaluating ten areas of depressive symptomatology: apparent sadness, reported sadness, inner tension, reduced sleep, reduced appetite, concentration difficulties, lassitude, inability to feel, pessimistic thoughts, suicidal thoughts. The items are rated on a 7 point Likert scale (0 - 6) with anchors at 2 point intervals. The total score ranges from 0 to 60, and higher scores indicate more severe symptoms. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
Measured: Baseline, Week 8 or Early termination
Changes From Baseline in Clinical Global Impression-Severity (CGI-S) at Week 8 or Early Termination
CGI-S is a 7-point clinician rated scale to assess severity of participant's current illness state; range: 1=normal, not ill at all, 2=borderline mentally ill, 3=mildly ill, 4=moderately ill, 5=markedly ill, 6=severely ill, 7=among the most extremely ill patients. Higher scores reflect higher severity of current illness states. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
Measured: Baseline, Week 8 or Early termination
Changes From Baseline in 6-item Hamilton Rating Scale for Depression (HAM-D6) Total Score at Week 8 or Early Termination
HAM-D6 is a subset of the HAM-D17 that assesses 6 items associated with major depression. The scale uses HAM-D17 items 1, 2, 7, 8, 10 and 13. Item 13 is scored 0 to 2 and all others are scored 0 to 4. Total score ranges from 0 to 22; higher score indicates more depression. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
Measured: Baseline, Week 8 or Early termination
Changes From Baseline in 16-item Quick Inventory of Depressive Symptomatology Self-Report Japanese Version (QIDS16-SR-J) Total Score at Week 8 or Early Termination
QIDS16-SR-J is a self-rated scale used in patients with major depressive disorder to measure the overall severity of depressive symptoms: 1) sad mood; 2) concentration; 3) self-criticism; 4) suicidal ideation; 5) interest; 6) energy/fatigue; 7) sleep disturbance (initial, middle, and late insomnia or hypersomnia); 8) decrease/increase in appetite/weight; and 9) psychomotor agitation/retardation. QIDS16-SR-J items are rated on a scale of 0 to 3. The total score ranges from 0 to 27, and higher scores indicate more severe symptoms. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
Measured: Baseline, Week 8 or Early termination
Mean Clinical Global Impression - Improvement (CGI-I) Score at Week 8 or Early Termination
CGI-I is a 7-point clinician rated scale ranging from 1=very much improved, 2=much improved, 3=minimally improved, 4=no change, 5=minimally worse, 6=much worse, 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. Scores above 4 reflect worsening of illness state as compared to baseline.
Measured: Baseline, Week 8 or Early termination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Sep 2011 (estimated)
- Study startNov 2011
- Primary completionMar 2014
- Study completionMar 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Major Depressive DisorderStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 538 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01441440
- Sponsor's protocol ID
- B2411263
- Status last verified
- Mar 2015
- First submitted
- 23 Sep 2011
- Last updated
- 28 Jan 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Kato M, Asami Y, Wajsbrot DB, Wang X, Boucher M, Prieto R, Pappadopulos E. Clustering patients by depression symptoms to predict venlafaxine ER antidepressant efficacy: Individual patient data analysis. J Psychiatr Res. 2020 Oct;129:160-167. doi: 10.1016/j.jpsychires.2020.06.011. Epub 2020 Jul 9.
PubMed 32912597Higuchi T, Kamijima K, Nakagome K, Itamura R, Asami Y, Kuribayashi K, Imaeda T. A randomized, double-blinded, placebo-controlled study to evaluate the efficacy and safety of venlafaxine extended release and a long-term extension study for patients with major depressive disorder in Japan. Int Clin Psychopharmacol. 2016 Jan;31(1):8-19. doi: 10.1097/YIC.0000000000000105.
PubMed 26513202
Study at a glance
From the registry record, last updated by the sponsor on 28 Jan 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-blind, Placebo Controlled, Multicenter Study To Evaluate The Efficacy And Safety Of Venlafaxine Er In Adult Outpatients With Major Depressive Disorder
- ClinicalTrials.gov ID
- NCT01441440
- Acronym / sponsor ID
- B2411263
- Conditions
- Major Depressive Disorder
- Keywords
- venlafaxine ER, Major depressive disorder, Japan, placebo-controlled
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 538 participants (actual)
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.Industry (pharma, biotech, devices)
- Study start
- Nov 2011
- Primary completion
- Mar 2014 (actual)
- Study completion
- Mar 2014 (actual)
- First posted
- 27 Sep 2011 (estimated)
- Results
- Posted 13 Mar 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy and safety of venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose), compared to placebo. This study consists of 2 week screening phase, 8 week treatment phase and 2 week tapering phase. The follow-up visit will be evaluated after 2 weeks of last study medication dosing.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| venlafaxine ER 75 mg/day (fixed dose) | Experimental | Drug: venlafaxine ER 75 mg/day (fixed dose) |
| venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) | Experimental | Drug: venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) |
| Placebo | Placebo comparator | Drug: Placebo |
Who may qualify
- Ages
- 20 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Outpatient status.
- A primary diagnosis of MDD based on the criteria in the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM- IV-TR), single or recurrent episode, without psychotic features.
- Depressive symptoms for at least 90 days in single episode and for at least 28 days in recurrent episode before the screening visit.
- A MADRS total score ≥26 at the screening and baseline visits. And change of MADRS total score at baseline is not over 25% from the screening visit.
- A QIDS16-J-SR score ≥16 at the screening and baseline visits.
Key exclusion criteria (15 listed)
- Subjects who concurrently have Axis II personality disorder or mental retardation according to DSM-IV diagnostic criteria.
- Subjects who meet DSM-IV criteria for current or past history of Schizophrenia, Paranoid Disorders, or any other Psychotic Disorders.
- Subjects who meet DSM-IV criteria for current or past history of Dementia.
- Subjects who meet DSM-IV criteria for current or past history of bipolar disorder, Posttraumatic Stress Disorder (PTSD) or Obsessive Compulsive Disorder (OCD).
- Subjects who meet DSM-IV criteria for current (within 12 months before the screening visit) generalized anxiety disorder, panic disorder, or social anxiety disorder considered by the investigator to be primary (causing a higher degree of distress or impairment than MDD).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| venlafaxine ER 75 mg/day (fixed dose)Treatment phase: 8 weeks (37.5 mg/day for 1st week and 75 mg/day for 7 weeks), oral administration Tapering phase: 2 weeks (37.5 mg/day for the 1st week and placebo for the 2nd week), oral administration | Drug | venlafaxine ER 75 mg/day (fixed dose) |
| venlafaxine ER 75 mg/day to 225 mg/day (flexible dose)Treatment phase: 8 weeks (37.5 mg/day for the 1st week, 75 mg/day for the 2nd weeks, 75-150 mg for the 3rd week, 75-225 mg/day for the rest of 5 weeks), oral administration Tapering phase: 2 weeks (75/37.5 mg/day for the 1st week and 37.5 mg/day/placebo for the 2nd week), oral administration | Drug | venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) |
| PlaceboTreatment phase: 8 weeks (placebo), oral administration Tapering phase: 2 weeks (placebo), oral administration | Drug | Placebo |
Primary outcome
Change From Baseline in 17-item Hamilton Raing Scale for Depression (HAM-D17) Total Score at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
HAM-D17 is a standardized, clinician-administered rating scale that assesses 17 items characteristically associated with major 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 or 0 to 4, and the total score ranges from 0 to 52. Higher scores indicate more severe symptoms. Change from baseline: mean score at Week 8 or early termination minus mean score at baseline.
5 secondary outcomes
Changes From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
Changes From Baseline in Clinical Global Impression-Severity (CGI-S) at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
Changes From Baseline in 6-item Hamilton Rating Scale for Depression (HAM-D6) Total Score at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
Changes From Baseline in 16-item Quick Inventory of Depressive Symptomatology Self-Report Japanese Version (QIDS16-SR-J) Total Score at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
Mean Clinical Global Impression - Improvement (CGI-I) Score at Week 8 or Early Termination
Time frame: Baseline, Week 8 or Early termination
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jan 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 32912597Kato M, Asami Y, Wajsbrot DB, Wang X, Boucher M, Prieto R, Pappadopulos E. Clustering patients by depression symptoms to predict venlafaxine ER antidepressant efficacy: Individual patient data analysis. J Psychiatr Res. 2020 Oct;129:160-167. doi: 10.1016/j.jpsychires.2020.06.011. Epub 2020 Jul 9.
- Derived from this study: PubMed 26513202Higuchi T, Kamijima K, Nakagome K, Itamura R, Asami Y, Kuribayashi K, Imaeda T. A randomized, double-blinded, placebo-controlled study to evaluate the efficacy and safety of venlafaxine extended release and a long-term extension study for patients with major depressive disorder in Japan. Int Clin Psychopharmacol. 2016 Jan;31(1):8-19. doi: 10.1097/YIC.0000000000000105.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
63 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing venlafaxine ER 75 mg/day (fixed dose) and venlafaxine ER 75 mg/day to 225 mg/day (flexible dose) in people with Major Depressive Disorder, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 63 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 6 inclusion and 15 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 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 63 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. 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?
Yes. Results are posted in the registry (first posted 13 Mar 2015). 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 17-item Hamilton Raing Scale for Depression (HAM-D17) Total Score at Week 8 or Early Termination (time frame: Baseline, Week 8 or Early termination). 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 NCT01441440, which also lists 2 linked publications.
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 Jan 2021.