NCT06573177

Brief Summary

This observational study focuses on evaluating the effect of the current health care program for Danish children and adolescents with gender incongruence, which was established in January 2016. Somatic outcome parameters include growth, bone health, body composition, metabolic parameters, hormone levels and concurrent diseases. Psychosocial parameters include the trajectory of gender incongruence development, mental health, i.e. autism spectrum disorders, behavioural problems, self-harm, suicidal ideation and psychiatric diagnoses, and social context, i.e. family demographics, education, minority stress. This study aims to:

  1. 1.Characterise the psychosocial profile of all children and adolescents referred for treatment, as well as the history of gender identity development and treatment trajectories.
  2. 2.Systematically evaluate biological parameters before and during hormonal treatment with gonadotropin-releasing hormone (GnRH) analogues and cross-sex hormones, and to establish a biobank for those in hormone treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,300

participants targeted

Target at P75+ for all trials

Timeline
56mo left

Started Jan 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress49%
Jan 2022Dec 2030

Study Start

First participant enrolled

January 1, 2022

Completed
2.3 years until next milestone

First Submitted

Initial submission to the registry

April 18, 2024

Completed
4 months until next milestone

First Posted

Study publicly available on registry

August 27, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2030

Expected
Last Updated

August 27, 2024

Status Verified

August 1, 2024

Enrollment Period

3.9 years

First QC Date

April 18, 2024

Last Update Submit

August 25, 2024

Conditions

Outcome Measures

Primary Outcomes (24)

  • Body Mass Index (BMI)

    BMI will be calculated from height and weight (kg/m\^2) measurements

    8 years

  • Puberty

    Tanner stages of puberty (1-5) are obtained by clinical examination

    8 years

  • Bone mineral content (BMD)

    Whole body dual-energy x-ray absorptiometry (DXA) will determine BMD Z-score for age and sex

    8 years

  • Body fat

    Whole body dual-energy x-ray absorptiometry (DXA) will measure body fat percentage (%)

    8 years

  • Lean body mass

    Whole body dual-energy x-ray absorptiometry (DXA) will measure lean mass (kg)

    8 years

  • Reproductive serum hormone levels

    Changes in reproductive hormone levels (%)

    8 years

  • Adrenal serum hormone levels

    Changes in adrenal hormone levels (%)

    8 years

  • Blood pressure

    Changes in blood pressure measurement (mm Hg)

    8 years

  • Transabdominal ultrasound of uterus

    Changes of endometrium (thickness in mm) during testosterone treatment

    8 years

  • Transabdominal ultrasound of ovaries

    Change in number of follicles (n) during testosterone treatment

    8 years

  • Sperm count

    Sperm Count (at cryopreservation)

    8 years

  • Sperm motility

    Sperm motility (at cryopreservation)

    8 years

  • Morbidity

    Number of participants with registered ICD10 diagnoses

    8 years

  • Demographic characteristics

    eg. socioeconomic status

    8 years

  • Prevalence of psychiatric disorders

    Based on screening for psychopathology using validated tests, as indicated: Schedule for Affective Disorders and Schizophrenia for School-age children (K-SADS): A diagnostic tool used to assess psychiatric disorders in children and adolescents. It is a semi-structured interview guide used to identify psychiatric conditions. Wechsler Intelligence Scale for Children (WISC 4/5) or Wechsler Adult Intelligence Scale (WAIS 4): General cognitive function is measured on a scale from 40-160 which is used as an intelligence quotient. A higher score: A higher cognitive function. Rorschach: A projective psychological test. The test uses a series of ink blots to evaluate a person's mental functions and emotional state by analysing their perceptions of the figures. The test is based on complex and subjective scoring and interpretation.

    8 years

  • Prevalence of Attention Deficit Hyperactive Disorder (ADHD)

    Screening using validated tests: Behavior Rating Inventory of Executive Function (BRIEF): General executive function is measured on a normative scale with T-scores from 20-80. A higher score: more executive difficulties. Attention Deficit/Hyperactive Disorder-Rating Scale (ADHD-RS): Attention Deficit Hyperactive Disorder traits measured on a normative scale with T-scores from 0-78. A higher score: More Attention Deficit Hyperactive Disorder traits

    8 years

  • Prevalence of autism spectrum disorder

    Screening using validated tests: Social Responsiveness Scale (SRS): Autism spectrum disorder (ASD) traits measured on a scale with T-scores from 0-76+. A higher score: More autistic traits. Autism Diagnostic Observation Schedule (ADOS): A structured observational tool to assess ASD. A trait is rated on a scale from 0 to 3. 0 indicates absence of a behaviour and 3 indicates severe occurrence of a behaviour. The total score determines the presence and severity of ASD. The cut-off scores are 10 for autism and 7 for ASD traits. Autism Diagnostic Interview-Revised (ADI-R): A structured interview used to assess ASD traits. Interview questions are scored on a scale from 0-3. 0 indicates absence of a behaviour and 3 indicates severe occurrence of a behaviour. The scores compared with cut-off values determine the presence of ASD. Cut-off values for each trait: Social interaction: cut-off 10; Communication skills: cut-off 8; Restrictive and repetitive behaviour patterns: cut-off 3.

    8 years

  • Global level of functioning

    Children's Global Assessment Scale (C-GAS, range 1-100)

    8 years

  • Psychosocial Disability

    Global Assessment of Psychosocial Disability (GAPD, range 0-8)

    8 years

  • Suicide risk

    Number of participants with self-reported suicide thoughts or attempts (interview)

    8 years

  • Substance abuse.

    Number participants with self-reported abuse of alcohol, drugs or medications (interview)

    8 years

  • Personal history of gender incongruence (GI)

    Age at onset of GI and social transitioning (interview)

    8 years

  • Cultural measures

    Interviews with youngsters and their families to explore: 1\) The experiences that are influential in the process of seeking gender-affirming treatment. 2) Treatment expectations and wishes. 3) The cultural understandings of gender, sex, body and identity that inform the decision to seek treatment. 4) The role of the family in the decision to seek treatment.

    8 years

  • Establishment of biobank

    Serum, plasma, DNA at -20 and -80 degrees Celsius.

    8 years.

Interventions

Referral to the national gender identity service consisting of the Sexological Clinic, Child and Adolescent Mental Health Center, and Department of Growth and Reproduction in the Capital Region of Denmark.

Eligibility Criteria

AgeUp to 18 Years
Sexall
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

All children and youngsters under the age of 18 years referred to the gender identity service in Denmark.

You may qualify if:

  • Accepted referral to the gender identity service.

You may not qualify if:

  • None.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Growth and Reproduction, Rigshospitalet

Copenhagen, Capital Region, 2100, Denmark

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Serum, plasma, DNA.

MeSH Terms

Conditions

Gender Dysphoria

Condition Hierarchy (Ancestors)

Sexual Dysfunctions, PsychologicalMental Disorders

Study Officials

  • Katharina M Main

    Rigshospitalet, Denmark

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Annamaria GE Giraldi

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. MD, Ph.d.

Study Record Dates

First Submitted

April 18, 2024

First Posted

August 27, 2024

Study Start

January 1, 2022

Primary Completion

December 1, 2025

Study Completion (Estimated)

December 1, 2030

Last Updated

August 27, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations