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Gender identity, sex hormones & the developing brain

Gender identity, sex hormones & the developing brain - Gender identity, sex hormones & the developing brain

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON39814
Enrollment
240
Registered
2010-05-20
Start date
2010-10-17
Completion date
Unknown
Last updated
2024-11-18

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

Conditions

gender dysphoria gender identity disorder

Interventions

None listed

Sponsors

Vrije Universiteit Medisch Centrum
Lead Sponsor

Eligibility

Age
2 Years to 99 Years

Inclusion criteria

Inclusion criteria: Children • Patients - DSM-IV-TR diagnosis Gender Identity Disorder - 1st measurement: puberty must not yet been reached. Children have to be maximally in Tanner stage 1. - 2nd measurement: children have to have entered puberty yet. They have to be at least in Tanner stage 2-3. - Right-handedness • Controls - 1st measurement: puberty must not yet been reached. Children have to be maximally in Tanner stage 1. - 2nd measurement: children have to have entered puberty yet. They have to be at least in Tanner stage 2-3. - Right-handedness;Adolescents • Patients - DSM-IV-TR diagnosis Gender Identity Disorder - 1st measurement: patients receive a GnRH-agonist in order to suppress puberty. - 2nd measurement: patients receive cross-sex hormone treatment - Right-handedness;• Controls - Adolescents match in terms of age, sex and educational level with the patient group - Right-handedness Adults • Patients - DSM-IV-TR diagnosis Gender Identity Disorder - two measurements: 1) oto-acoustic emissions (OAE), 2) 2D:4D ratios

Exclusion criteria

Exclusion criteria: all subjects: - Mental retardation (IQ

Design outcomes

Primary

MeasureTime frame
The main study parameter is the Blood oxygen level dependent (BOLD) response in the fMRI tasks. In the adult participants, the main study parameters are the OAEs and the 2D:4D ratios.

Secondary

MeasureTime frame
Secondary outcome measures are the neuropsychological test parameters, the otoacoustic emission data, self-report data, and hormone level assessments.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)