Clinical trials
Testosterone clinical trials
Below are recruiting testosterone clinical trials, each written for real people, not researchers. We’re tracking 51 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05011383RecruitingPhase 2
High-dose testosterone for prostate cancer with certain gene changes
This trial tests whether high doses of testosterone, a male hormone, can help slow or shrink prostate cancer that has stopped responding to usual hormone treatments, specifically in people whose tumors have changes in the ATM, CDK12, or CHEK2 genes.
Aurora, ColoradoAges 18 years+ - NCT04798469RecruitingPhase 2
Testosterone to reduce long-term spine pain in men on opioids
This Phase 2 study tests whether taking testosterone can lessen chronic non-cancer spinal pain in men who have low testosterone while using opioid pain medicines. It may help by improving hormone levels that could be affecting pain and overall wellbeing.
Boston, MassachusettsAges 18 years+ - NCT03522064RecruitingPhase 2
HRD-positive advanced prostate cancer trial with androgen therapy and chemo
This Phase 2 study tests whether blocking male hormones (androgen therapy) plus the chemotherapy drug carboplatin can shrink advanced prostate cancer in men with specific DNA repair problems. It is for cases where prostate-specific antigen (PSA) is rising even though testosterone is already kept very low.
Sydney, New South WalesAges 18 years+ - NCT00588185Recruiting
Pet scans for advanced prostate or salivary gland cancer
This study uses special PET scans to get a detailed picture of prostate or salivary gland cancer that is getting worse. The scans may help doctors see the cancer more clearly and plan better treatment.
Basking Ridge, New JerseyAges Any age - NCT04760574Recruiting
HIV status and low testosterone in men
This study looks at whether low testosterone (often called male hypogonadism) is linked to having HIV. It compares HIV-positive men with HIV-negative men to better understand what contributes to hormone problems and how common they are.
TaipeiAges 20 years+ - NCT05649605Recruiting
Testing early response to gender-affirming hormone treatment
This study looks at how people respond early after starting gender-confirming hormones. It may help doctors understand what changes happen soon after treatment starts and how to manage it safely.
StockholmAges 18–99 - NCT05825092RecruitingPhase 2
Early testosterone gel for people on breathing machines
This Phase 2 study tests whether starting testosterone gel soon after ICU admission can improve physical performance in critically ill adults who need a breathing machine for more than 48 hours. It’s also designed to check safety in this setting.
BordeauxAges 18–79 - NCT07546435Recruiting
Male experiences with fertility treatment for low sperm quality
This study explores men's experiences undergoing ICSI, a fertility treatment that helps when sperm quality is reduced. Researchers want to understand how the treatment affects you physically and emotionally.
Skive, Midt JyllandAges 18 years+ - NCT07460960RecruitingPhase 2
Statin therapy for heart health and erectile function in men
This study tests whether statins, a common cholesterol-lowering medication, can improve erectile function and hormone levels in men at high risk for heart problems. It aims to see if these benefits exist beyond just lowering cholesterol.
MoscowAges 40–65 - NCT05030220Recruiting
Testing testosterone and a skin bacteria during shoulder surgery
This study looks at how testosterone levels and a common skin bacteria (Cutibacterium) may relate to outcomes around elective shoulder replacement surgery. Results could help improve how doctors prevent and understand infection risk or healing after surgery.
Seattle, WashingtonAges 18–89 - NCT07254429RecruitingPhase 2
The Copenhagen Menopause Study for hot flash relief
This study tests a new treatment for women going through menopause who have frequent hot flashes. It aims to find a safe and effective way to reduce moderate to severe hot flashes.
HerlevAges 40–65 - NCT06841328Recruiting
Stem cell therapy for fertility in ovaries and testes
This study tests a regenerative stem cell therapy to improve fertility in men with testicular failure or low sperm count and women with early ovarian failure. It is for people who have already tried standard treatments without success.
Dubai, DubaiAges 20–50 - NCT07143279RecruitingEarly Phase 1
Testosterone for quality of life in men with advanced cancer
This trial tests if testosterone supplements can improve quality of life for men with low testosterone who are no longer receiving active cancer treatment. It aims to help with symptoms like fatigue and low mood.
BrusselsAges 18 years+ - NCT07092527RecruitingPhase 4
Testosterone's effects on hormones in transgender and cisgender people
This study looks at how testosterone affects the brain and reproductive hormones in people who are starting testosterone therapy and those who are not. It aims to understand the body's natural hormone cycles.
San Diego, CaliforniaAges 18–35 - NCT06922318RecruitingPhase 2
Combined suppression of MYC for advanced prostate cancer
This trial tests a new combination of drugs (ZEN-3694 and enzalutamide) for men with advanced prostate cancer that has stopped responding to standard hormonal treatments. It aims to see if this combination can help slow or stop the cancer from growing.
Baltimore, MarylandAges 18 years+ - NCT06720597Recruiting
Testing a device for blood vessel health in erectile dysfunction
This study tests a device called EndoPAT to check how well the blood vessels in your penis are working. It may help doctors better understand erectile dysfunction or low testosterone.
Newport Beach, CaliforniaAges 18 years+ - NCT04254354Recruiting
Body identity clinic for transgender men on testosterone
This trial is for transgender men who want care focused on body identity. It likely studies how testosterone treatment and clinic support affect body-related feelings and wellbeing.
OdenseAges 18 years+ - NCT06594926RecruitingPhase 2
Bipolar androgen therapy for prostate cancer without metastases
This trial tests a treatment called bipolar androgen therapy for men with prostate cancer that has not spread to other parts of the body and is still growing despite taking darolutamide. The goal is to see if this therapy can help control the cancer.
Garran, Australian Capital TerritoryAges 18 years+ - NCT06096870RecruitingPhase 2
Enzalutamide with a new drug for prostate cancer that is active on PET scan
This trial tests a combination of enzalutamide (a hormone blocker) and an investigational antibody-drug (PDS01ADC) in men whose prostate cancer has come back after initial treatment, but has not yet spread extensively. It does not involve standard hormone therapy that lowers testosterone.
Bethesda, MarylandAges 18–120 - NCT06084338RecruitingPhase 2
Focused Radiation Therapy Without Hormone Therapy for Advanced Prostate Cancer
This trial tests whether giving focused radiation to many cancer spots (SBRT) can work without using testosterone-blocking hormone therapy. It is for men whose prostate cancer has spread and is no longer responding to low testosterone, and who have already tried one of the newer hormone drugs.
West Los Angeles, CaliforniaAges 18 years+ - NCT06100705RecruitingPhase 2
Immunotherapy plus testosterone for advanced prostate cancer
This study combines an immunotherapy drug called sipuleucel-T (which boosts your immune system to fight cancer) with a high-dose testosterone treatment called bipolar androgen therapy. The goal is to see if this combination can help men with advanced prostate cancer that is not responding to usual hormone therapy.
New Haven, ConnecticutAges 18 years+ - NCT06075953RecruitingPhase 2
Testing Active Surveillance for Hormone-Positive DCIS After Surgery
This trial tests whether active surveillance (close monitoring) is a good option for certain patients with hormone-positive DCIS who have positive surgical margins after initial surgery. You would receive no immediate additional treatment—just regular imaging and check-ups.
Berkeley, CaliforniaAges 18 years+ - NCT06072677Recruiting
Mood and testosterone in young teens
This study looks at how mood changes during puberty in young people aged 11 to 14. It tests whether using a mindfulness app (Healthy Minds) can help teens who have been through stress or feel down.
Chapel Hill, North CarolinaAges 11–14 - NCT06039371RecruitingPhase 2
High dose testosterone during chemo for advanced prostate cancer
This trial tests if adding high doses of testosterone to standard chemotherapy (etoposide and carboplatin) can make the chemo work better in men whose prostate cancer has stopped responding to other treatments. It aims to see if this approach can shrink tumors or slow cancer growth.
Seattle, WashingtonAges 18 years+
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Common questions
- Are there clinical trials for testosterone?
- Yes. Clin2 currently lists 51 recruiting testosterone studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a testosterone trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a testosterone trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.