IT Matters: The Erectile Restoration Registry (It MATTERS)

May 11, 2026 updated by: Boston Scientific Corporation
The objective of the It MATTERS registry is to collect Real-World Data (RWD) to monitor the safe and effective use of commercially available Boston Scientific Corporation (BSC) penile prostheses

Study Overview

Detailed Description

IT MATTERS is a prospective, multicenter, observational registry that is part of planned, active post market clinical follow-up (PMCF) activity associated with each device.

The study will include adult males who undergo penile prothesis implantation with a market approved BSC device to treat erectile dysfunction.

Study Type

Observational

Enrollment (Estimated)

450

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Beijing, China, 100034
        • Peking University First Hospital
      • Shanghai, China, 200080
        • Shanghai General Hospital
      • Shanghai, China, 200127
        • Shanghai Jiaotong University School of Medicine Renji Hospital
      • Dhahran, Saudi Arabia, 34465
        • Johns Hopkins Aramco Healthcare
    • California
      • Los Angeles, California, United States, 90095
        • Ronald Reagan UCLA Medical Center
      • Los Angeles, California, United States, 90033
        • USC Medical Center
      • Los Angeles, California, United States, 99048
        • Tower Urology-Research Facility
    • Florida
      • Miami, Florida, United States, 33136
        • University of Miami Hospital
      • Tampa, Florida, United States, 33606
        • USF Health South Tampa Center for Advanced Healthcare
    • Illinois
      • Chicago, Illinois, United States, 60637
        • University of Chicago
      • Springfield, Illinois, United States, 62702
        • SIU School of Medicine
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University Medical Center
    • Louisiana
      • Bossier City, Louisiana, United States, 71111
        • Willis-Knighton Medical Center
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University in St. Louis
    • North Carolina
      • Raleigh, North Carolina, United States, 27609
        • Duke University Medical Center
      • Salisbury, North Carolina, United States, 28144
        • W.G. Hefner VA Medical Center
      • Winston-Salem, North Carolina, United States, 27103
        • Wake Forest University
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic
      • Columbus, Ohio, United States, 43212
        • Ohio State University Wexner Medical Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Thomas Jefferson University Hospital
    • Texas
      • Houston, Texas, United States, 77030
        • Baylor College of Medicine
      • Houston, Texas, United States, 77030
        • Houston Methodist Hospital
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah
    • Washington
      • Seattle, Washington, United States, 98195
        • University of Washington Medical Center
    • Wisconsin
      • Milwaukee, Wisconsin, United States, 53226
        • Medical College of Wisconsin

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Adult males who meet the indications for surgical correction of erectile dysfunction will be enrolled.

Description

Inclusion Criteria:

  1. ≥ 18 years of age.
  2. Males who are determined to be suitable candidates and scheduled to undergo surgical implantation of a market approved BSC penile prothesis by their physician.
  3. Willing and able to complete the informed consent process.
  4. Willing and able to comply with the follow-up requirements.

Exclusion Criteria:

  1. Males who are deemed by their physician as not suitable candidates for a penile prosthesis.
  2. In the opinion of the investigator, it is not in best interest of the patient or the study for the patient to participate.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
BSC Penile Prothesis Recipients
Men for whom BSC Penile Prothesis is recommended.
The Tactra™ Penile Prosthesis is a sterile, single-use implant that is intended for use in the treatment of chronic, organic, erectile dysfunction (impotence) in adult males who are suitable candidates for implantation procedure.
The Spectra Penile Prothesis is a sterile, non-pyrogenic, single-use implant that is intended for use in the treatment of chronic, organic, erectile dysfunction (impotence) in men who are determined to be suitable candidates for implantation surgery.
The AMS Ambicor inflatable penile prothesis intended for use in the treatment of chronic, organic, male erectile dysfunction (impotence) in adult men who are determined to be suitable candidates for implantation surgery.
The AMS 700 Inflatable Penile Prosthesis is intended for use in the treatment of chronic, organic, male erectile dysfunction (impotence).
The AMS 700 Inflatable Penile Prosthesis is intended for use in the treatment of chronic, organic, male erectile dysfunction (impotence).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline to six months in the Erectile Function domain ofthe International Index of Erectile Function (IIEF-EF) questionnaire for Tactra
Time Frame: Baseline to 6 months

The International Index of Erectile Function (IIEF) is a validated, widely used, multidimensional self-report instrument for the evaluation of erectile function. It consists of 15 items that assess sexual function in five domains: erectile function (Q1, 2, 3, 4, 5,15), orgasmic function (Q9,10), sexual desire (Q11,12), intercourse satisfaction (Q 6,7,8) and overall satisfaction (Q 13,14). A score of 0-5 is awarded to each of the 15 questions. The IIEF-15 total score is the sum of the ordinal responses to the 5 domains.

The erectile function (EF) domain is the most sensitive domain of the IIEF. IIEF-EF score ranges from 1 to 30 and is derived by scoring 0 (poorest function) to 5 (best function) on each of six questions function (Q1, 2, 3, 4, 5, 15). There are five categories of erectile function based on EF domain score: severe (1-10), moderate (11-16), mild to moderate (17-21), mild (22-25) and no ED (26-30).

Baseline to 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in depressive symptoms and overall sexual function at Post-Surgery, 6 months, 12 months and annually thereafter post device implantation compared to baseline, as measured by the PHQ-9 Depression Questionnaire and the IIEF: Total Score.
Time Frame: Post-Surgery, 6 months, 12 months and annually thereafter through study completion, an average of 10 years
The Patient Health Questionnaire (PHQ) is a diagnostic tool for mental health disorders used by health care professionals. The PHQ contains: mood anxiety, alcohol, eating, and somatoform modules. The PHQ-9, is a validated tool specific to depression, scoring each of the 9 DSM-IV criteria. Scored from 0-27, the PHQ-9 is separated into five different diagnoses: minimal depression (0-4), mild depression (5-9), moderate depression (10-14), moderately severe depression (15-19), and severe depression (20-27).
Post-Surgery, 6 months, 12 months and annually thereafter through study completion, an average of 10 years
Change in quality of life at 6 months, 12 months, and 24 months post device implantation compared to baseline as measured by the WPAI:GH Questionnaire.
Time Frame: 6 months, 12 months and 24 months
The WPAI:GH (Work Productivity and Activity Impairment Questionnaire: General Health) is a validated tool that asks a series of questions about the effect of subject health problems, both physical and emotional, on their ability to work and perform regular activities. The WPAI:GH outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity, i.e., worse outcomes, as following 6 questions: 1 = currently employed, 2 = hours missed due to health problems, 3 = hours missed other reasons, 4 = hours actually worked, 5 = degree health affected productivity while working, 6 = degree health affected regular activities. Scores are then multiplied by 100 to be expressed in percentages.
6 months, 12 months and 24 months
Change in erectile function at post-surgery, 12 months and annually post device implantation compared to baseline, as measured by the International Index of Erectile Function Domain (IIEF).
Time Frame: Post-Surgery, 12 months and annually thereafter through study completion, an average of 10 years

The International Index of Erectile Function (IIEF) is a validated, widely used, multidimensional self-report instrument for the evaluation of erectile function. It consists of 15 items that assess sexual function in five domains: erectile function (Q1, 2, 3, 4, 5,15), orgasmic function (Q9,10), sexual desire (Q11,12), intercourse satisfaction (Q 6,7,8) and overall satisfaction (Q 13,14). A score of 0-5 is awarded to each of the 15 questions. The IIEF-15 total score is the sum of the ordinal responses to the 5 domains.

The erectile function (EF) domain is the most sensitive domain of the IIEF. IIEF-EF score ranges from 1 to 30 and is derived by scoring 0 (poorest function) to 5 (best function) on each of six questions function (Q1, 2, 3, 4, 5, 15). There are five categories of erectile function based on EF domain score: severe (1-10), moderate (11-16), mild to moderate (17-21), mild (22-25) and no ED (26-30).

Post-Surgery, 12 months and annually thereafter through study completion, an average of 10 years

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Device satisfaction at post-surgery, 6 months, 12 months and annually thereafter measured by the Likert scale.
Time Frame: Post-surgery, 6 months, 12 months and annually thereafter through study completion, an average of 10 years
The Likert scale has the options of Very Satisfied, Dissatisfied, Neither Satisfied nor Dissatisfied, Satisfied and Very Satisfied. Responses will be evaluated categorically.
Post-surgery, 6 months, 12 months and annually thereafter through study completion, an average of 10 years
Assess for outcomes and adverse events on AMS Tools at Post Procedure.
Time Frame: Collected only at Post-Procedure
AMS tools will be assess by a physician survey as part of the post-procedure case report form.
Collected only at Post-Procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Mohit Khera, MD, Baylor College of Medicine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 5, 2021

Primary Completion (Estimated)

January 1, 2031

Study Completion (Estimated)

December 1, 2031

Study Registration Dates

First Submitted

December 11, 2019

First Submitted That Met QC Criteria

December 13, 2019

First Posted (Actual)

December 16, 2019

Study Record Updates

Last Update Posted (Actual)

May 12, 2026

Last Update Submitted That Met QC Criteria

May 11, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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