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The Effect of Tucking on Semen Quality of Adult Trans Women

NCT ID: NCT06530992

Last Updated: 2024-07-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-07-17

Study Completion Date

2029-12-31

Brief Summary

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Because gender-affirming hormone therapy (GAHT) can lead to fertility impairment, current guidelines and treatment recommendations require that patients be informed about the possibility of fertility preservation prior to initiating GAHT. A recent review by our working group analyzed the current data on fertility and fertility preservation in transgender and gender diverse people. Several studies were identified that evaluated semen quality before and during GAHT in trans women compared to reproductive men. All studies showed a significant reduction in semen quality even before GAHT. In addition, one study found evidence that constant wearing of tight underwear and tucking was associated with a reduction in motile sperm concentration to \<5 mill/ml. Tucking is a method of avoiding crotch bulge through the penis and testicles by placing the penis backwards between the legs and optionally pushing the testicles into the groin canals. These positions are fixed with tight-fitting underwear or gaffs. Whether tucking or the wearing of tight underwear is the determining factor for impaired semen quality even before the start of GAHT and whether there is reversibility remains unclear and will be investigated in the present study.

The study is designed as a prospective case-control study with a total sample size of n = 40 trans women. All patients with gender incongruence presenting to the University Clinic for Gynecology, Endocrinology and Reproduction Innsbruck before starting GAHT are eligible to participate. Trans women (n = 20) who practice tucking or wear tight underwear will be included and trans women (n = 20) who do not practice tucking will be included as a control group. At Time 1, after 2-7 days of abstinence, all participants will provide a semen sample for a spermiogram, a venous blood sample will be taken, and quality of life will be assessed using a questionnaire. The frequency and duration of tucking or wearing tight underwear, ejaculation frequency, demographic data such as BMI, nicotine use, alcohol and drug use, medication use, underlying medical conditions, previous surgeries, etc. are also recorded.

Participants in the study group are then asked to abstain tucking for at least 73 days. After 2-7 days of sperm abstinence, another semen sample is taken at time 2, a venous blood sample is taken, and quality of life is assessed. At this point, depending on the participant's wishes, there is the option of sperm cryopreservation for fertility preservation prior to starting GAHT.

Spermiograms are performed under standardized conditions according to current WHO guidelines.

Detailed Description

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Conditions

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Transgender Gender Incongruence Fertility Issues

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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tucking

trans women who practice tucking

tucking break

Intervention Type OTHER

All participants will provide a semen sample for sperm analysis after 2-7 days of abstinence from ejaculation, a venous blood sample will be taken at the same time, and quality of life will be assessed using a questionnaire.

Participants in the study group are then asked to refrain from tucking or wearing tight underwear for at least 73 days. At least 73 days (10.5 weeks) after the first spermiogram, another semen collection is scheduled after 2-7 days of abstinence from ejaculation for the preparation of a spermiogram, a venous blood sample is taken at the same time, and quality of life is assessed in all participants. At this point, depending on the participant's wishes, it is possible to perform sperm cryopreservation for fertility preservation before starting gender affirming hormonal treatment.

no tucking

trans women who do not practice tucking

No interventions assigned to this group

Interventions

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tucking break

All participants will provide a semen sample for sperm analysis after 2-7 days of abstinence from ejaculation, a venous blood sample will be taken at the same time, and quality of life will be assessed using a questionnaire.

Participants in the study group are then asked to refrain from tucking or wearing tight underwear for at least 73 days. At least 73 days (10.5 weeks) after the first spermiogram, another semen collection is scheduled after 2-7 days of abstinence from ejaculation for the preparation of a spermiogram, a venous blood sample is taken at the same time, and quality of life is assessed in all participants. At this point, depending on the participant's wishes, it is possible to perform sperm cryopreservation for fertility preservation before starting gender affirming hormonal treatment.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Female transgender patients between the ages of 18 to 50 years of age who are seen at the University Clinic for Gyn. Endocrinology and Reproductive Medicine of the Medical University of Innsbruck. Patients must have met the eligibility and readiness criteria for gender-affirming hormone therapy

Exclusion Criteria

* Ongoing GAHT gender affirming genital surgery Hypogonadism Diabetes mellitus Cystic Fibrosis Varicocele Cryptorchism Post-sterilization Incapacity to consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Medical University Innsbruck

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University clinic for Gynecological Endocrinology and Reproductive Medicine Department of Gynecology Medical University of Innsbruck

Innsbruck, , Austria

Site Status RECRUITING

Countries

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Austria

Central Contacts

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Katharina Feil, MD

Role: CONTACT

Phone: +4351250425657

Email: [email protected]

Facility Contacts

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Katharina Feil, MD

Role: primary

Other Identifiers

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1162/2024V2.0

Identifier Type: -

Identifier Source: org_study_id