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NCT Number: NCT05249634

Testosterone Treatment in Men With Chronic Kidney Disease

This study in being conducted in men who have low testosterone and chronic kidney disease. The investigators will evaluate the effects of an oral testosterone preparation, JATENZO, on testosterone levels and hemoglobin (red blood cells).

Recruiting

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Key information

Age range

18 year–85 year

Sex eligibility

Male

Study type

Interventional

Phase

Phase 2

Primary location

Saint Louis Univeristy

St Louis, Missouri, 63104, United States

Location status: Recruiting

Location contact

Jennifer Newman

CONTACT

About this study

  • Purpose. The purpose of this research is to find out if JATENZO will help increase testosterone levels in men with hypogonadism and chronic kidney disease, determine if there is any improvement in testosterone levels, hemoglobin (red blood cells), muscle strength, lean mass and sexual function.
  • The dug will be daily for 6 months. Study Procedures. Every 2-4 weeks, the study participant will come in person for a research visit. Investigators will collect a blood sample at certain visits, do a brief physical exam, and obtain vital signs such as height, weight, blood pressure. The study also involves completing questionnaires, measuring body composition by a scan and testing muscle strength. The dose of JATENZO may be adjusted based on the testosterone levels.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men between ages of 18-85 years of age
  • eGFR 15-45 ml/min/1.73m2 by MDRD (Modification of Diet in Renal Disease) equation
  • Subnormal total serum T concentrations (<300 ng/dl) on two separate occasions in morning
  • Symptoms of hypogonadism (as per Endocrine Society guidelines): low libido, erectile dysfunction, fatigue, irritability, depressed mood, poor concentration, increased body fat, decreased muscle bulk, reduced physical performance, sleep disturbance, loss of body hair (15)
  • Normal iron stores as defined by serum ferritin ≥100 ng/mL and transferrin saturation (TSAT) ≥20%.

Exclusion criteria

  • Use of TRT currently or in the past 6 months, including use of over-the-counter androgen containing health supplements (e.g., DHEA)
  • Hematocrit >48% (as per Endocrine Society guidelines)(15)
  • Treatment with erythropoiesis stimulating agents (ESA)
  • Uncontrolled blood pressure (>180/100 mm Hg)
  • Heart Failure, class III or IV
  • Myocardial infarction, stroke, or heart surgery in the past 3 months
  • Breast cancer
  • History of prostate cancer
  • Prostate specific antigen (PSA) >4 ng/ml, unless prostate cancer has been ruled out by a urologist (documented in physician notes)
  • HIV or untreated hepatitis C
  • Untreated, severe obstructive sleep apnea
  • Initiated iron replacement in the last 3 months
  • deep venous thrombosis or pulmonary embolism in the last 3 months
  • recurrent (more than once) deep venous thrombosis or pulmonary embolism
  • use of warfarin
  • Planning to have children in the next one year

Treatment and study plan

Jatenzo Pill

Drug

oral tablet daily

Other names: oral testosterone

Primary outcomes

  1. Testosterone concentrations

    Time frame: 6 months

    Testosterone concentrations in serum measured multiple times during the study

Secondary outcomes

  1. Hemoglobin

    Time frame: 6 months

    blood test

  2. muscle strength

    Time frame: 6 months

    Hand-grip strength will be measured by a quantitative handgrip dynamometer in the dominant arm. Mean of three consecutive measurements will be used.

  3. Lean mass

    Time frame: 6 months

    measured by DEXA scan

  4. sexual function

    Time frame: 6 months

    Psychosexual daily questionnaire for 7 consecutive days will be used. The questionnaire covers three different domains: 1) sexual desire, enjoyment, and performance; 2) sexual activity score; and 3) mood. Sexual desire (question 1) and sexual enjoyment (question 2) will be rated on a 7-point Likert-type scale from 0 to 7, with 0 indicating none and 7 indicating very high. Sexual performance will be assessed by % full erection and satisfaction with erection (questions 5 and 6). Sexual activity (question 4) will be assessed using a checklist format. The value will be recorded as 0 (none) or 1 (any) for analysis. Higher score indicates higher activity; maximum score on this item is 12. Each mood parameter (question 3) will also be assessed on the 7-point Likert scale.

Study contacts

Contact information is provided by the study sponsor or research team.

Jennifer Newman, RN

CONTACT

[email protected]

Sandeep Dhindsa, MD

CONTACT

[email protected]

314-977-9320

Sponsors and collaborators

Lead sponsor

St. Louis University

Other

Collaborators

  • Clarus Therapeutics, Inc.

Registry information

Official study title

Effect of JATENZO® Therapy on Testosterone and Hemoglobin Concentrations in Hypogonadal Men With Chronic Kidney Disease

Important dates

Study start
2022
Primary completion
2028
Study completion
2028
First posted
Feb 21, 2022
Registry last updated
Apr 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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