Study Evaluating Effexor® (Venlafaxine) in Achieving Response and Maintaining Remission


Last updated date


Contact a representative by phone, email, or visiting the study website. Please see the references below:

By phone

Pfizer Clinical Trials Contact Center


By email


[email protected]

Call Now

Eligibility Criteria
The disease, disorder, syndrome, illness, or injury that is being studied.
Females and Males
Pediatric Trials: 0-17 Years
Adult Trials: 18+ Years
0 +


Questions about a trial? Call or email to reach a Pfizer Clinical Trial Contact Center Representative

Pfizer Clinical Trials Contact Center


[email protected]


Search for Clinical Trials by condition, keyword or trial number. Share your location or enter your city or zip code to find studies near you.

Based on your search, you may also be interested in

DepressionStudy Evaluating Effexor XR in Elderly Patients With Major Depression.
  1. Ichikawa, Chiba
  2. Ichikawa, Chiba
  3. Kasuga, Fukuoka
  4. Kitakyushu, Fukuoka
  5. Ohnojo, Fukuoka
  6. Otaru, Hokkaido
  7. Sapporo, Hokkaido
  8. Sapporo, Hokkaido
  9. Sapporo, Hokkaido
  10. Sapporo, Hokkaido
  11. Sapporo, Hokkaido
  12. Sapporo, Hokkaido
  13. Sapporo, Hokkaido
  14. Sapporo, Hokkaido
  15. Sapporo, Hokkaido
  16. Tsukuba, Ibaragi
  17. Hanamaki, Iwate
  18. Kawasaki, Kanagawa
  19. Kawasaki, Kanagawa
  20. Sagamihara, Kanagawa
  21. Yokohama, Kanagawa
  22. Yokohama, Kanagawa
  23. Moriguchi, Osaka
  24. Osakasayama, Osaka
  25. Osakasayama, Osaka
  26. Sakai, Osaka
  27. Adachi-ku, Tokyo
  28. Chiyoda-ku, Tokyo
  29. Fuchu, Tokyo
  30. Higashimurayama, Tokyo
  31. Kodaira, Tokyo
  32. Meguro-ku, Tokyo
  33. Nakano-ku, Tokyo
  34. Setagaya-ku, Tokyo
  35. Tachikawa, Tokyo
  36. Hiroshima,
  37. Okayama,
65 Years+
DepressionStudy Evaluating the Effects of DVS SR and Paroxetine on the Pharmacokinetics of Desipramine in Healthy Subjects
  1. Neptune, New Jersey
18 Years+
DepressionStudy Evaluating Long-Term Safety of Effexor XR in Patients With Major Depression.
  1. Nagoya, Aichi
  2. Nagoya, Aichi
  3. Ichikawa, Chiba
  4. Ichikawa, Chiba
  5. Kasuga, Fukuoka
  6. Kitakyushu, Fukuoka
  7. Kitakyushu, Fukuoka
  8. Kitakyushu, Fukuoka
  9. Kurume, Fukuoka
  10. Ohnojyo, Fukuoka
  11. Kure, Hiroshima
  12. Otaru, Hokkaido
  13. Sapporo, Hokkaido
  14. Sapporo, Hokkaido
  15. Sapporo, Hokkaido
  16. Sapporo, Hokkaido
  17. Sapporo, Hokkaido
  18. Sapporo, Hokkaido
  19. Nishinomiya, Hyogo
  20. Tsuchiura, Ibaragi
  21. Tsukuba, Ibaragi
  22. Kanazawa, Ishikawa
  23. Hanamaki, Iwate
  24. Kawasaki, Kanagawa
  25. Kawasaki, Kanagawa
  26. Sagamihara, Kanagawa
  27. Sagamihara, Kanagawa
  28. Yokohama, Kanagawa
  29. Yokohama, Kanagawa
  30. Yokohama, Kanagawa
  31. Yokohama, Kanagawa
  32. Yokohama, Kanagawa
  33. Yokohama, Kanagawa
  34. Yokosuka, Kanagawa
  35. Kikuchi, Kumamoto
  36. Ohmura, Nagasaki
  37. Kashihara, Nara
  38. Jyo-etsu, Niigata
  39. Beppu, Ohita
  40. Moriguchi, Osaka
  41. Osakasayama, Osaka
  42. Osakasayama, Osaka
  43. Hamamatsu, Shizuoka
  44. Adachi-ku, Tokyo
  45. Bunkyo-ku, Tokyo
  46. Bunkyo-ku, Tokyo
  47. Chiyoda-ku, Tokyo
  48. Chiyoda-ku, Tokyo
  49. Itabashi-ku, Tokyo
  50. Kodaira, Tokyo
  51. Meguro-ku, Tokyo
  52. Meguro-ku, Tokyo
  53. Meguro-ku, Tokyo
  54. Minato-ku, Tokyo
  55. Minato-ku, Tokyo
  56. Nakano-ku, Tokyo
  57. Ohta-ku, Tokyo
  58. Setagaya-ku, Tokyo
  59. Shinjuku, Tokyo
  60. Tachikawa, Tokyo
  61. Toshima-ku, Tokyo
  62. Toshima-ku, Tokyo
  63. Fukuoka,
  64. Fukuoka,
  65. Fukuoka,
  66. Fukuoka,
  67. Hiroshima,
  68. Hiroshima,
  69. Hiroshima,
  70. Nagasaki,
  71. Osaka,
  72. Osaka,
  73. Saitama,
20 Years+
DepressionDetermine The Percentage Of Depressed Outpatients Who Do Not Effectively Metabolize Extended-release Venlafaxine HCl
  1. Birmingham, Alabama
  2. Tuscon, Arizona
  3. Little Rock, Arkansas
  4. National City, California
  5. Ocean Side, California
  6. Oceanside, California
  7. Santa Ana, California
  8. Temecula, California
  9. Colorado Springs, Colorado
  10. Denver, Colorado
  11. Cromwell, Connecticut
  12. Milford, Connecticut
  13. Coral Gables, Florida
  14. Lauderhill, Florida
  15. West Palm Beach, Florida
  16. West Palm Beach, Florida
  17. Decatur, Georgia
  18. Naperville, Illinois
  19. Wichita, Kansas
  20. Wichita, Kansas
  21. Crestview Hills, Kentucky
  22. Florence, Kentucky
  23. Columbia, Maryland
  24. Pittsfield, Massachusetts
  25. Watertown, Massachusetts
  26. Kalamazoo, Michigan
  27. Stevensville, Michigan
  28. Chesterfield, Missouri
  29. Jefferson City, Missouri
  30. Kalispell, Montana
  31. Las Vegas, Nevada
  32. Albuquerque, New Mexico
  33. Brooklyn, New York
  34. Brooklyn, New York
  35. Staten Island, New York
  36. Charlotte, North Carolina
  37. Wilmington, North Carolina
  38. Bismarck, North Dakota
  39. Fargo, North Dakota
  40. Cincinnati, Ohio
  41. Kettering, Ohio
  42. Mason, Ohio
  43. Norman, Oklahoma
  44. Oklahoma City, Oklahoma
  45. Bridgeville, Pennsylvania
  46. Philadelphia, Pennsylvania
  47. Pottstown, Pennsylvania
  48. Reading, Pennsylvania
  49. Greenville, South Carolina
  50. Mt. Pleasant, South Carolina
  51. Memphis, Tennessee
  52. San Antonio, Texas
  53. Bellevue, Washington
18 Years+
Advanced Information
Descriptive Information
Brief Title  ICMJE Study Evaluating Effexor® (Venlafaxine) in Achieving Response and Maintaining Remission
Official Title  ICMJE A Study Of The Utility Of Effexor® (Venlafaxine) In Achieving Response And Maintaining Remission Among Taiwanese Patients With Depression
Brief Summary This is a study to determine the utility of Effexor® (venlafaxine) in achieving response, including time to response, maintaining remission, and time to remission as measured by the 17-item Hamilton Rating Scale for Depression (HAM-D) and to determine the utility of Effexor® (venlafxine) on the various cluster of symptom scales in the 17-item HAM-D.
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 4
Study Design  ICMJE Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE Depression
Intervention  ICMJE Drug: Effexor® (Venlafaxine)
Study Arms  ICMJE Not Provided
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE
 (submitted: October 18, 2007)
Original Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE March 2005
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE


  • Patients meeting criteria for a diagnosis of major depression, single or recurrent episode as described by the DSM-IV manual (appendix 1).
  • A HAM-D 17 total score of at least 16 at baseline (DSM-IV manual, appendix 2).
  • Patients above 18 years of age who meet the eligibility requirements.


  • Patients taking MAOI's within 2 weeks prior to the survey.
  • Patients known to be suffering from bipolar disorder or schizophrenia.
  • Patients who are treatment-resistant, i.e., in the past 3 years have failed (a) three previous adequate trials of greater than or equal to 2 classes of antidepressant medication, or (b) electroconvulsive therapy.
  • Drug or alcohol dependence or abuse in the past 6 months per DSM IV criteria.
Sex/Gender  ICMJE
Sexes Eligible for Study:All
Ages  ICMJE Child, Adult, Older Adult
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Not Provided
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT00546494
Other Study ID Numbers  ICMJE 0600B-101547
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE Wyeth is now a wholly owned subsidiary of Pfizer
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director:Medical MonitorWyeth is now a wholly owned subsidiary of Pfizer
PRS Account Wyeth is now a wholly owned subsidiary of Pfizer
Verification Date October 2007

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP