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HypotestosteronismEarly Phase 1TestoSupNCT07143279

Testosterone Supplementation in Patients in Best Supportive Care: Impact on Quality of Life

A Early Phase 1 study testing Sustanon 250 in people with Hypotestosteronism and Palliative Care, run by Jules Bordet Institute at 1 site in Belgium.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a monocentric, single-arm prospective pilot study that will enrol hypogonadal (testosterone < 231 ng/dL) male subjects in best supportive care, with no further therapeutic options and no need for resuscitation. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Hypotestosteronism, Palliative Care
What is being tested?
Sustanon 250
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteBelgium
Study dates
11 Feb 2026to Nov 2027
Phase
Early Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male hypogonadal with total testosterone < 231 ng/dl in best supportive care with no further therapeutic options and who do not wish to be reanimated.
  • Age ≥ 18 years old
  • Patient able to understand the patient information sheet and able to sign the Informed Consent form (ICF) prior to any study related procedure.

Who cannot join

  • Untreated prostate cancer, given the risk of epiduritis.
  • Known hypersensitivity reactions to the study drug or to any excipients.
  • Known allergies to peanuts or soya.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Belgium1 site, 1 recruiting
  • Institut Jules Bordet

    Brussels, 1070

    Isabelle Libert, MD, +32 (0)2 541 39 92, isabelle.libert@hubruxelles.be

    Isabelle Libert, MD

    Recruiting

Other trials in Belgium

About this study

This is a monocentric, single-arm prospective pilot study that will enrol hypogonadal (testosterone < 231 ng/dL) male subjects in best supportive care, with no further therapeutic options and no need for resuscitation.

Currently, testosterone formulations for intramuscular (IM) injection and subcutaneous injection as well as for oral and transdermal administration have been approved for androgen therapy. To date, injectable testosterone is the most commonly used formulation. To increase serum testosterone levels to the physiological range IM injections of testosterone every 2-3 weeks are required, which lead to supraphysiological peaks shortly after administration, followed by a sharp fall in levels thereafter. Testosterone levels before the next injection are frequently in the hypogonadal range. For this reason, Sustanon 250® (1 ml, IM) will be administered on day 0 after confirmation of hypogonadism by blood test and then every 15 days in this trial given the limited life expectancy of the subjects and to maximise the effect and benefit of testosterone supplementation.

The Edmonton questionnaire and ADL questionnaire will be completed before the injection on day 0 and then every 15 days at the time of injection until subject's death or if a subject is discontinued from the study treatment/procedures for any other reasons than death. In parallel, the EQ-5D-3L questionnaire will be completed by a family member or a proxy.

Being tested
Sustanon 250

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sustanon 250Drug

    Also called Testosterone

    Sustanon 250® (1 ml, IM) every 10 days

Study groups in NCT07143279
Study groupRoleWhat they receive
Testosterone supplementation in patients in best supportive care: impact on quality of lifeExperimentalSingle-arm prospective pilot study that will enrol hypogonadal (testosterone < 231 ng/dL) male subjects in best supportive care, with no further therapeutic options and no need for resuscitation. Administration of Sustanon 250® (1 ml, IM) on day 0 after confirmation of hypogonadism by blood test and then every 15 days.
Receives: Drug: Sustanon 250

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Quality of life assessed by ADL questionnaire

    Best improvement over time in independence using the ADL independence scale in terms of personal hygiene, dressing, going to the toilet, locomotion, continence and eating.

    The primary endpoint is defined as the difference between the best score after baseline and the initial score at baseline.

    Measured: Every 15 days through study completion

  2. Quality of life assessed by Edmonton Symptom Assessment Scale

    Best improvement over time in symptoms of pain, fatigue, sadness, anxiety, drowsiness, appetite, sense of well-being, shortness of breath, bowel movements and strength using the Edmonton Symptom Assessment Scale.

    The primary endpoint is defined as the difference between the best score after baseline and the initial score at baseline.

    Measured: Every 15 days through study completion,

Secondary outcomes (2)
  1. EQ-5D-3L questionnaire

    Improvement of quality of life of subjects from the point of view of a proxy using the EQ-5D-3L questionnaire (EQ-5D-3L scale 0-100 where 0=worst outcome and 100=better outcome)

    Measured: Every 15 days through study completion

  2. Dynamic/change of the ADL and Edmonton System Assessment Scale during treatment

    The average of ADL and Edmonton Symptom Assessment Scale during treatment after baseline.

    Measured: At each time point during treatment, especially at Day 15.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Aug 2025
  2. Study start11 Feb 2026
  3. Primary completionNov 2026 (estimated)
  4. Study completionNov 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07143279
Sponsor's protocol ID
IJB-SP01-2025
Other IDs
2025-522023-10-00, 2025
Acronym
TestoSup
Status last verified
Feb 2026
First submitted
3 Jul 2025
Last updated
13 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Sustanon 250 in people with Hypotestosteronism and Palliative Care, run by Jules Bordet Institute at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 13 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Quality of life assessed by ADL questionnaire (time frame: Every 15 days through study completion). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Feb 2026.

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