Testosterone Treatment for Erectile Dysfunction and Multiple Sclerosis

August 28, 2025 updated by: Tulane University

Testosterone TReatment for Erectile Dysfunction in Male Multiple Sclerosis Patients With Low Testosterone (TTRED-MS Study)

The purpose of the study is to determine the effects of testosterone treatment on erectile function, fatigue, depression, cognitive function, quality of life, urinary incontinence, pain, and damage to neurons in male Multiple Sclerosis patients with low testosterone, using questionnaires, blood samples and a rectal exam in volunteers 55 years and older.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Volunteers will be treated weekly with Xyosted 75 mg (given subcutaneously) for 3 months during which they will have 3 study visits, 6 weeks apart. The Baseline visit will include providing a blood sample, completing questionnaires, receiving training on the Xyosted auto-injector, and undergoing a rectal exam for participants 55 years and older. Visits 2 and 3 will also include collecting a blood sample and completing questionnaires. At Visit 3, the rectal exam for those age 55 years and older will be repeated.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Louisiana
      • New Orleans, Louisiana, United States, 70112
        • LSU Health Multispecilaity Clinics
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Males, age 18 years and older, with a definite diagnosis of multiple sclerosis.
  • Low testosterone (<300 ng/dl) on two successive blood draws before 9:00 am
  • Not in an intercurrent relapse.
  • Sexually active.
  • Have subjective complaints about erectile function and libido.
  • Must be willing and able to get labs drawn, complete questionnaires (BDI, MFIS, MSNQ, SDMT, MSQOL, ADAM, AUASS, SHIM, MSHQ, ICIQ, UDI, IIQ, MPQ) and commit to site visits schedule.

Exclusion Criteria:

  • Males unable to fulfill the above criteria and all female patients.
  • Males who have been on sex hormone treatment including androgens, estrogens, or anti-estrogens for hypogonadism or other medical condition during the 12 months prior to study.
  • Males who have taken dehydroepiandrosterone (DHEA) during the 3 months prior to study.
  • Patients who are taking anticoagulants or have thrombosis, serious cardiac, pulmonary, renal, gastrointestinal, hepatic, immunologic, infectious, neoplastic (with particular focus on patients with known or suspected estrogen or testosterone-dependent tumors), urologic disease especially prostatic hypertrophy/nodules and testicular mass, or insulin-dependent diabetes.
  • Patients with an abnormal prostate as evidenced by known history of prostatic disease, symptoms suggestive of prostatic disease or elevated levels of prostatic specific antigen (PSA 4 ng/ml or higher) measured within the last 12 months.
  • Patients with history or complaint of testicular mass.
  • Patients with hematocrit greater than 50%
  • Patients with major psychiatric illness
  • Patients with active alcoholism.
  • Patients with a history of drug abuse within the past five years.
  • Patients with BMI ≥ 35
  • Patients with generalized skin disease that may affect absorption of testosterone (e.g. psoriasis) or a known skin intolerance to alcohol.
  • Patients with history of pituitary disease.
  • Patients with a cholesterol level greater than 300 mg/dl.
  • Patients who are receiving or have received experimental therapies in the six months preceding enrollment.
  • Patients who have history of positive titers to Human Immunodeficiency Virus (HIV)1 and 2; HTLV1; or Venereal Disease Research Laboratory (VDRL).
  • Patients who have clinical evidence of Lyme disease.
  • Males who are trying to get their partner pregnant.
  • Patients on Finasteride
  • Patients who are mentally or emotionally incompetent in the opinion of the examining neurologist or unable to give informed consent, or to understand and comply with the study protocol.
  • Any other contraindications according to the manufacturer's exclusion criteria.

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

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment open label arm
Open-label feasibility study to determine the effects of testosterone (Xyosted 75mg subcutaneous once per week for 3 months) on erectile function in male Multiple Sclerosis patients with low testosterone.
Drug: XYOSTED 75 milligram (mg) in 0.5 ML Auto-Injector
Self injection testosterone treatment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Determine the change in self-reported erectile function from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using Androgen Deficiency in the Aging Male (ADAM score).
Time Frame: Change from baseline to 12 weeks
Androgen Deficiency in the Aging Male (ADAM score) includes ten "Yes or No" questions, with an answer "Yes" to number 1 or 7 or if you answer "Yes" to more than 3 questions, you may have low Testosterone.
Change from baseline to 12 weeks
Determine the change in self-reported erectile function from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using Sexual Health in Men (SHIM score).
Time Frame: Change from baseline to 12 weeks
Sexual Health in Men (SHIM score) with a range of 1 to 25 with a higher number representing less erectile dysfunction.
Change from baseline to 12 weeks
Determine the change in self-reported erectile function from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using Male Sexual Health Questionnaire short form (MSHQ-SF).
Time Frame: Change from baseline to 12 weeks
Male Sexual Health Questionnaire short form (MSHQ-SF) with a range of 1 to 15 with a higher number representing better ejaculatory function, in addition to one bother/satisfaction question, scored 1 to 5 where the higher represents more bothersome.
Change from baseline to 12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Measure the change in self-reported fatigue from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the Modified Fatigue Impact Scale (MFIS).
Time Frame: Change from baseline to 12 weeks
Modified Fatigue Impact Scale (MFIS) with a range of 0 to 84 with a higher number representing greater impact of fatigue on a person's activities.
Change from baseline to 12 weeks
Measure the change in self-reported depression from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the Beck Depression Inventory (BDI).
Time Frame: Change from baseline to 12 weeks
Beck Depression Inventory (BDI) with a range of 0 to 63 with a higher number representing higher level of depression.
Change from baseline to 12 weeks
Measure the change in cognitive function from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the Symbol Digit Modalities Test (SDMT).
Time Frame: Change from baseline to 12 weeks
Symbol Digit Modalities Test (SDMT) which provides a score for as many items as can be completed in 90 seconds (t-score calculated using age, sex and education normative data), with a higher score representing a better performance.
Change from baseline to 12 weeks
Measure the change in cognitive function from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the Multiple Sclerosis Neuropsychological Screening Questionnaire (MSNQ).
Time Frame: Change from baseline to 12 weeks
Multiple Sclerosis Neuropsychological Screening Questionnaire (MSNQ) with a range of 0 to 30 with a higher number representing worse cognitive function.
Change from baseline to 12 weeks
Measure the change in self-reported overall quality of life from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the Multiple Sclerosis Quality of Life Scale (MSQOL-54).
Time Frame: Change from baseline to 12 weeks
Multiple Sclerosis Quality of Life Scale (MSQOL-54) which goes from 0 to 100 with a higher score indicating a better quality of life.
Change from baseline to 12 weeks
Measure the change in self-reported urinary incontinence from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the American Urological Association Symptom Score (AUASS).
Time Frame: Change from baseline to 12 weeks
The American Urological Association Symptom Score (AUASS) with a range of 0 to 35 with a higher number representing more severe enlarged prostate symptoms.
Change from baseline to 12 weeks
Measure the change in self-reported urinary incontinence after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using International Consultation on Incontinence Questionnaire short form (ICIQ-SF).
Time Frame: Change from baseline to 12 weeks
International Consultation on Incontinence Questionnaire short form (ICIQ-SF) with a range of 0 to 21 with a higher number representing greater impairment from incontinence.
Change from baseline to 12 weeks
Measure the change in self-reported urinary incontinence from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using Urogenital Distress Inventory short form (UDI-6).
Time Frame: Change from baseline to 12 weeks
Urogenital Distress Inventory short form (UDI-6) with a range of 0 to 100 with a higher number representing higher the disability.
Change from baseline to 12 weeks
Measure the change in self-reported urinary incontinence from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using Incontinence Impact Questionnaire short form (IIQ-7).
Time Frame: Change from baseline to 12 weeks
Incontinence Impact Questionnaire short form (IIQ-7) with a range of 0 to 100 with a higher number representing greater impact by urinary incontinence on the person's life.
Change from baseline to 12 weeks
Measure the change in self-reported pain from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the McGill Pain Questionnaire (MPQ).
Time Frame: Change from baseline to 12 weeks
McGill Pain Questionnaire (MPQ) with a range of 0 to 78 with a higher number representing greater pain.
Change from baseline to 12 weeks
Measure the change in Multiple Sclerosis lesions, indirectly from baseline to 12-weeks after 12 weeks of treatment with XYOSTED in males with Multiple Sclerosis with low testosterone using the serum levels of neurofilament-light chains (NF-L).
Time Frame: Change from baseline to 12 weeks
The serum levels of neurofilament-light chains (NF-L) with a higher level representing more neuro-axonal injury in the central nervous system.
Change from baseline to 12 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Tulane University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Louisiana State University Health Sciences Center in New Orleans
Antares Pharma Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Omar A Raheem, MD, Assistant Professor, Urology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 2, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 19, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 23, 2020

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 29, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 28, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1288

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

Yes

Studies a U.S. FDA-regulated device product

No

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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