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Effects of Testosterone Enanthate vs. Testosterone Undecanoate on Metabolic Profiles in Transgender Men : A Randomized Controlled Study

Effects of Testosterone Enanthate vs. Testosterone Undecanoate on Metabolic Profiles in Transgender Men : A Randomized Controlled Study

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260223009
Enrollment
52
Registered
2026-02-23
Start date
2025-05-26
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gender Dysphoria in Transgender Men Transgender men, Testosterone, Testosterone Undecanoate, Testosterone Enanthate, Metabolic, Cardiovascular disease, Lipids

Interventions

Intramuscular testosterone enanthate administered 100 mg every 2 weeks ,Intramuscular testosterone undecanoate administered 10000 mg single dose
Active Comparator Drug,Active Comparator Drug
Testosterone Enanthate,Testosterone Undecanoate

Sponsors

Ratchadapisek Research Fund, Faculty of Medicine, Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1.Age between 18 and 40 years. 2.Diagnosed with gender dysphoria at King Chulalongkorn Memorial Hospital or has a medical certificate from another institution. 3.Planning to initiate testosterone therapy and has never received testosterone treatment before. 4.Able to understand and communicate in Thai. 5.Willing to participate and able to provide written informed consent.

Exclusion criteria

Exclusion criteria: 1.Contraindications to testosterone therapy, including pregnancy, cardiovascular disease, cerebrovascular disease, deep vein thrombosis, pulmonary embolism, breast cancer, endometrial cancer, or obstructive sleep apnea. 2.Current use of medications affecting metabolic outcomes (e.g., lipid-lowering drugs or antidiabetic medications). 3.History of allergy to testosterone. 4.Abnormal vaginal bleeding. 5.Contraindications to intramuscular injection.

Design outcomes

Primary

MeasureTime frame
HDL cholesterol level changes 13 weeks mg/dL HDL cholesterol level changes

Secondary

MeasureTime frame
Changes in metabolic parameters 13 weeks LDL cholesterol, total cholesterol, triglycerides, plasma glucose blood tests.,Changes in serum hormone levels 13 weeks serum testosterone and estradiol levels

Countries

Thailand

Contacts

Public ContactNattaporn Titapant

Faculty of Medicine, Chulalongkorn University

proudd.20@gmail.com022564000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026