- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT07624747
Brain Health in Transgender Adults
Cerebral Blood Flow and Neurocognitive Performance in Adults Undergoing Gender-affirming Hormone Therapy
Tutkimuksen yleiskatsaus
Tila
Ehdot
Yksityiskohtainen kuvaus
The purpose of this study is to assess the effects of GAHT on cerebral structure and function. To this end, this study has three aims:
Aim 1: To identify if transgender males and females demonstrate changes in
- A) basal CBF and
- B) CBF responses to acute stress-particularly in areas involved in cognition, memory, and learning.
Aim 2: To identify if transgender adults will demonstrate significant changes in:
- A) overall brain structure,
- B) functional connectivity, and
- C) task activation.
Aim 3: To identify if neurocognitive function changes in transgender adults.
The investigators hypothesize that:
- Aim 1: Transgender females will demonstrate increased basal CBF and larger CBF responses to acute stress, particularly in areas involved in cognition, memory, and learning, whereas transgender males will display lower basal CBF and lower CBF responses to acute stress.
- Aim 2: Transgender patients will demonstrate significant changes in: a) overall brain structure, b) functional connectivity, and c) task activation.
- Aim 3: Neurocognitive function will increase in transgender females and decreases in transgender males, primarily in the domains of memory, attention, executive function, and processing speed.
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Yhteystiedot ja paikat
Opiskeluyhteys
- Nimi: Shawn Bolin, MS
- Puhelinnumero: 608-263-6308
- Sähköposti: sbolin@wisc.edu
Opiskelupaikat
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Wisconsin
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Madison, Wisconsin, Yhdysvallat, 53792
- Rekrytointi
- UW School of Medicine and Public Health
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Näytteenottomenetelmä
Tutkimusväestö
Kuvaus
Inclusion Criteria:
- intention to undergo GAHT
Exclusion Criteria:
- BMI greater than 40 kg/m2
- Age greater than 45 yrs
- Blood pressure greater than 140/90 (stage II hypertension)
- A current diagnosis of type II diabetes
- History of traumatic brain injury/concussion, stroke, or seizures
- Are post-menopausal
- Previously taken hormone therapy medications
- Self-reported pregnancy (no pregnancy test)
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
Kohortit ja interventiot
Ryhmä/Kohortti |
Interventio / Hoito |
|---|---|
|
Male at birth undergoing GAHT with their Clinical Care Team
|
Two MRI visits (baseline and after 4-6 months of continuous GAHT) will involve structural scans of the brain, scans while performing cognitive tasks, and a scan taken while responding to an inhaled CO2 stressor.
This visit will take approximately 1.5 hours.
Muut nimet:
Two cognition and health test trials (baseline and after 4-6 months of continuous GAHT) will involve a body composition scan to determine body fat percentage, muscle mass, and bone density.
This will be followed by a set of cognitive tasks using the NIH Toolbox.
Optional graded exercise test will be performed if the participant consents to this optional procedure (baseline and after 4-6months of continuous GAHT).
to determine cardiorespiratory fitness.
This test will be performed on a cycle ergometer, with a metabolic allowing for the measurement of maximal oxygen consumption via indirect calorimetry.
|
|
Female at birth undergoing GAHT with their Clinical Care Team
|
Two MRI visits (baseline and after 4-6 months of continuous GAHT) will involve structural scans of the brain, scans while performing cognitive tasks, and a scan taken while responding to an inhaled CO2 stressor.
This visit will take approximately 1.5 hours.
Muut nimet:
Two cognition and health test trials (baseline and after 4-6 months of continuous GAHT) will involve a body composition scan to determine body fat percentage, muscle mass, and bone density.
This will be followed by a set of cognitive tasks using the NIH Toolbox.
Optional graded exercise test will be performed if the participant consents to this optional procedure (baseline and after 4-6months of continuous GAHT).
to determine cardiorespiratory fitness.
This test will be performed on a cycle ergometer, with a metabolic allowing for the measurement of maximal oxygen consumption via indirect calorimetry.
|
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Change Cerebral Blood Flow (CBF)
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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CBF at rest and in response to cognitive stressors.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
|
Change in Brain Structure
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
Grey matter and White matter volumes.
|
baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
|
Change in Brain Connectivity
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Measured using MRI.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
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Change in Cognitive Function: Flanker Inhibitory Control and Attention
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
NIH Toolbox to assess neurocognitive function.
The Flanker test is a measure of executive function and is scored using a T-score where 100 is the average, higher scores indicate better performance.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
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Change in Cognitive Function: Pattern Comparison Processing Speed Test
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
NIH Toolbox to assess neurocognitive function.
The Pattern Comparison Processing Speed Test measures how many correct responses the participant has within 90 seconds.
There is a maximum of 130 items.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Cognitive Function: List Sorting Working Memory Test
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
NIH Toolbox to assess neurocognitive function.
The List Sorting Working Memory Test is a measure of recall and sorting.
Participants scores reflect the number of items recalled and appropriately sorted up to 28 items maximum.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Cognitive Function: Dimensional Change Card Sort Test
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
NIH Toolbox to assess neurocognitive function.
The Dimensional Change Card Sort Test measures accuracy: the number of accurate responses, up to a maximum of 40.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Cognitive Function: Picture Vocabulary Test
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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NIH Toolbox to assess neurocognitive function.
The Picture Vocabulary Test has the participant hear a word and then pick from one of four pictures that best represents the word.
It is scored using a T-score where 100 is the average, higher scores indicate better performance.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Change Cerebral Blood Flow (CBF)
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
Changes in CBF in response to inhaled mixture of room air and CO2
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
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Changes in sex steroid concentrations
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Body Composition
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Dual-energy X-ray absorptiometry (DEXA)
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Blood Glucose
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Glucose is a marker of metabolic health
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Insulin
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Insulin is a marker of metabolic health.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Change in Cytokines
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
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Cytokines are a marker of inflammation.
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baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
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Optional Graded Exercise Test: VO2 Max
Aikaikkuna: baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
An optional graded exercise test will be performed to determine cardiorespiratory fitness.
This test will be performed on a cycle ergometer, with a metabolic allowing for the measurement of maximal oxygen consumption via indirect calorimetry.
This will be a ramped exercise test, starting at a wattage of 50W and increasing in difficulty by 1 watt every 2 seconds.
The purpose of this is to begin at a low intensity and gradually increase the difficulty until exhaustion is reached.
|
baseline and up to 6 months (after 4-6 months of continuous GAHT)
|
Yhteistyökumppanit ja tutkijat
Sponsori
Tutkijat
- Päätutkija: William Schrage, PhD, University of Wisconsin, Madison
Opintojen ennätyspäivät
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Opiskelun aloitus (Todellinen)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
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