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CompletedNCT00021814MTOPSUpdated Sep 28, 2018

Medical Therapy of Prostatic Symptoms

A Phase 3 interventional study of Doxazosin and Finasteride in Prostatic Hyperplasia and Prostatic Hypertrophy, Benign, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Completed at 17 sites in United States. Open to male participants aged 50 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-09-28.

Sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Nov 2001, 24 years 10 months ago, and no results have been posted to the registry.
  • Registered 5 years 8 months after the study started (first participant enrolled Dec 1995, registered Aug 2001).
Phase
Phase 3
Study type
Interventional
Enrollment
3,407
Allocation
Randomized
Ages
50 Years and older
Sex
Male
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Study summary

The Medical Therapy of Prostatic Symptoms (MTOPS) is a clinical research study sponsored by the National Institutes of Health (NIH). The study will test whether the oral drugs finasteride (Proscar) and doxazosin (Cardura), alone or together, can delay or prevent further worsening of symptoms in men with Benign Prostatic Hyperplasia (BPH).

MTOPS is the largest and longest study to simultaneously test whether these drugs can delay or prevent the clinical progression (symptom worsening) of BPH. Seventeen U.S. medical centers recruited 2,931 men diagnosed with symptomatic BPH between December 1995 and March 1998. Study doctors will continue to follow these men through November 2001 on a quarterly basis. In addition to the clinical progression of BPH, MTOPS will include evaluations of prostate volume by ultrasound, prostate biopsies among a subgroup of volunteers, and quality of life.

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Conditions studied

  • Prostatic Hyperplasia
  • Prostatic Hypertrophy, Benign

Keywords

  • BPH progression
  • Medical Therapy
  • Finasteride
  • Doxazosin
  • Randomized
  • Multi-center
  • Clinical Trial
  • Proscar
  • Cardura
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In context

Prostatic Hyperplasia

783 studies on the registry are indexed under Prostatic Hyperplasia; 174 are open to participants now.

This study's enrollment of 3,407 is above the median of 97 across 593 interventional studies indexed under Prostatic Hyperplasia.

Browse Prostatic Hyperplasia studies →

Lead sponsor

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) is the lead sponsor of 529 studies on the registry; 54 are open to participants now.

Of its 79 completed or terminated interventional studies of FDA-regulated products, 50 (63%) have results posted.

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

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Who can participate

Ages eligible
50 Years and older
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  • Peak urinary flow rate at least 4 ml/sec but not greater than 15 ml/sec; and voided volume is at least 125 ml.
  • American Urological Association Symptom Score is greater than or equal to 8 and less than or equal to 30.
  • Voluntarily signed the informed consent agreement prior to the performance of any study procedures.

Exclusion criteria

Exclusion Criteria:

  • Serum prostate specific antigen level greater than 10 ng/ml.
  • Supine blood pressure less than 90/70 mmHG. Orthostatic hypotension.
  • Any prior medical or surgical intervention for BPH.
  • Received any prior experimental intervention (either medical or surgical) for prostate disease or enrolled in any other study protocol.
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
3,407 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Doxazosin and Finasteride placebos

    Drug: Doxazosin placebo · Drug: Finasteride placebo

  • Experimental
    Doxazosin

    Doxazosin and Finasteride placebo

    Drug: Doxazosin · Drug: Finasteride placebo

  • Experimental
    Finasteride

    Doxazosin placebo and Finasteride

    Drug: Finasteride · Drug: Doxazosin placebo

  • Experimental
    Combination

    Doxazosin and Finasteride

    Drug: Doxazosin · Drug: Doxazosin placebo

Interventions

  • DrugDoxazosin
  • DrugFinasteride
  • DrugDoxazosin placebo
  • DrugFinasteride placebo
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Study locations

17 sites
  • University of California
    La Jolla, California 92093-0694, United States
  • Univ of Colorado Health Sciences Center
    Aurora, Colorado 80010-0510, United States
  • Yale University
    New Haven, Connecticut 06520, United States
  • Walter Reed Army Medical Center
    Washington, District of Columbia 20307, United States
  • Emory University
    Atlanta, Georgia 30322, United States
  • Northwestern University
    Chicago, Illinois 60611, United States
  • University of Iowa Hospitals Clinics
    Iowa City, Iowa 52242, United States
  • University of Maryland
    Baltimore, Maryland 21201, United States
  • Henry Ford Health Systems
    Detroit, Michigan 48202, United States
  • Mayo Foundation
    Rochester, Minnesota 55905, United States
  • Washington University
    Saint Louis, Missouri 63141, United States
  • New York University School of Medicine
    New York, New York 10010, United States
  • Columbia Presbyterian Medical Center
    New York, New York 10032, United States
  • Vanderbilt University
    Nashville, Tennessee 37232-2765, United States
  • UT Southwestern Medical Center
    Dallas, Texas 5235-9110, United States
  • Baylor College of Medicine
    Houston, Texas 77005, United States
  • Brooke Army Medical Center
    San Antonio, Texas 78234-6200, United States
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References and documents

Publications

  • Berry SJ, Coffey DS, Walsh PC, Ewing LL. The development of human benign prostatic hyperplasia with age. J Urol. 1984 Sep;132(3):474-9. doi: 10.1016/s0022-5347(17)49698-4. PubMed 6206240 ↗
  • Sidney S, Quesenberry CP Jr, Sadler MC, Guess HA, Lydick EG, Cattolica EV. Incidence of surgically treated benign prostatic hypertrophy and of prostate cancer among blacks and whites in a prepaid health care plan. Am J Epidemiol. 1991 Oct 15;134(8):825-9. doi: 10.1093/oxfordjournals.aje.a116157. PubMed 1719806 ↗
  • Gormley GJ, Stoner E, Bruskewitz RC, Imperato-McGinley J, Walsh PC, McConnell JD, Andriole GL, Geller J, Bracken BR, Tenover JS, et al. The effect of finasteride in men with benign prostatic hyperplasia. The Finasteride Study Group. N Engl J Med. 1992 Oct 22;327(17):1185-91. doi: 10.1056/NEJM199210223271701. PubMed 1383816 ↗
  • Lepor H, Gup DI, Baumann M, Shapiro E. Laboratory assessment of terazosin and alpha-1 blockade in prostatic hyperplasia. Urology. 1988 Dec;32(6 Suppl):21-6. PubMed 2462301 ↗
  • Lepor H, Henry D, Laddu AR. The efficacy and safety of terazosin for the treatment of symptomatic BPH. Prostate. 1991;18(4):345-55. doi: 10.1002/pros.2990180408. PubMed 1711689 ↗
  • Guess HA. Benign prostatic hyperplasia: antecedents and natural history. Epidemiol Rev. 1992;14:131-53. doi: 10.1093/oxfordjournals.epirev.a036083. No abstract available. PubMed 1283852 ↗
  • McConnell JD. Androgen ablation and blockade in the treatment of benign prostatic hyperplasia. Urol Clin North Am. 1990 Aug;17(3):661-70. PubMed 1695786 ↗
  • Barry MJ. Epidemiology and natural history of benign prostatic hyperplasia. Urol Clin North Am. 1990 Aug;17(3):495-507. PubMed 1695778 ↗
  • Mebust WK, Holtgrewe HL, Cockett AT, Peters PC. Transurethral prostatectomy: immediate and postoperative complications. A cooperative study of 13 participating institutions evaluating 3,885 patients. J Urol. 1989 Feb;141(2):243-7. doi: 10.1016/s0022-5347(17)40731-2. PubMed 2643719 ↗
  • McConnell JD, Roehrborn CG, Bautista OM, Andriole GL Jr, Dixon CM, Kusek JW, Lepor H, McVary KT, Nyberg LM Jr, Clarke HS, Crawford ED, Diokno A, Foley JP, Foster HE, Jacobs SC, Kaplan SA, Kreder KJ, Lieber MM, Lucia MS, Miller GJ, Menon M, Milam DF, Ramsdell JW, Schenkman NS, Slawin KM, Smith JA; Medical Therapy of Prostatic Symptoms (MTOPS) Research Group. The long-term effect of doxazosin, finasteride, and combination therapy on the clinical progression of benign prostatic hyperplasia. N Engl J Med. 2003 Dec 18;349(25):2387-98. doi: 10.1056/NEJMoa030656. PubMed 14681504 ↗
  • Kusek JW, Ahrens A, Burrows PK, Clarke HS, Foster HE, Hanson K, Jacobs SC, Kirkemo A, O'Berry K, Pavlik VN; MTOPS Research Group. Recruitment for a clinical trial of drug treatment for benign prostatic hyperplasia. Urology. 2002 Jan;59(1):63-7. doi: 10.1016/s0090-4295(01)01454-6. PubMed 11796283 ↗
  • Bautista OM, Kusek JW, Nyberg LM, McConnell JD, Bain RP, Miller G, Crawford ED, Kaplan SA, Sihelnik SA, Brawer MK, Lepor H. Study design of the Medical Therapy of Prostatic Symptoms (MTOPS) trial. Control Clin Trials. 2003 Apr;24(2):224-43. doi: 10.1016/s0197-2456(02)00263-5. PubMed 12689743 ↗

Individual participant data

Plan to share: Yes — Data and specimens will be submitted to the NIDDK Central Repository

Supporting information: Study protocol, Sap, Csr

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00021814
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborators
George Washington University
Responsible party
Sponsor
First posted
Aug 6, 2001
Start date
Dec 1995
Primary completion
Nov 30, 2001
Completion
Nov 30, 2001
Last update
Sep 28, 2018

Study contacts

E. David Crawford
principal investigator · Clinic 01 - Univ of Colorado Health Sciences Center
Steven A. Kaplan
principal investigator · Clinic 02 - New York Presbyterian Hospital
Claus Roehrborn
principal investigator · Clinic 03 - UT Southwestern Medical Center
Noah S. Schenkman
principal investigator · Clinic 04 - Walter Reed Army Medical Center
Herbert Lepor
principal investigator · Clinic 06 - New York University School of Medicine
Kevin M. Slawin
principal investigator · Clinic 07 - Baylor College of Medicine
John P. Foley
principal investigator · Clinic 08 - Brooke Army Medical Center
Joe W. Ramsdell
principal investigator · Clinic 09 - University of California San Diego
Mani Menon
principal investigator · Clinic 10 - Henry Ford Hospital
Michael M. Lieber
principal investigator · Clinic 11 - Mayo Foundation
Kevin T. McVary
principal investigator · Clinic 12 - Northwestern University
Joseph A. Smith
principal investigator · Clinic 13 - Vanderbilt University
Gerald L. Andriole
principal investigator · Clinic 14 - Washington University
Harris E. Foster
principal investigator · Clinic 15 - Yale University
Harry S. Clarke
principal investigator · Clinic 16 - Emory University
Karl J. Kreder
principal investigator · Clinic 17 - University of Iowa
Stephen C. Jacobs
principal investigator · Clinic 18 - University of Maryland
Gary J. Miller
principal investigator · Diagnostic Center - Univ of Colorado Health Sciences Center
Oliver M. Bautista
principal investigator · Biostatistical Coordinating Center - George Washington Univ.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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