ClinicalTrials.gg
Not yet recruitingNCT04252001YESSUpdated Sep 7, 2023

Growing up With the Young Endocrine Support System (YESS!)

An interventional study of YESS! game and Snake '97 in Congenital Adrenal Hyperplasia, Hypogonadotropic Hypogonadism and Growth Hormone Deficiency, sponsored by dr. Laura C. G. de Graaff-Herder. Not yet recruiting at 7 sites in 4 countries. Open to participants aged 15 Years to 20 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-09-07.

Sponsored by dr. Laura C. G. de Graaff-Herder · Not applicable, Interventional, and Supportive care

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Phase
Not applicable
Study type
Interventional
Enrollment
160
Allocation
Randomized
Ages
15 Years to 20 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 14 studies in Adrenal Hyperplasia, Congenital with a site in United Kingdom — 5 open to participants now, 7 under way, 4 of them phase 3. Adrenal Hyperplasia, Congenital · United Kingdom.

Planned enrollment
3rd of 10
160 · median 127
Started
2024
the only one that year
No phase
Only one
of the 14
Registered
4th of 14
by date
Lead sponsor
1 of 14
dr. Laura C. G. de Graaff-Herder

Among the 14 studies in Adrenal Hyperplasia, Congenital with a site in United Kingdom, this one is the 3rd largest by planned enrollment of the 10 interventional ones that give a count, is the only one that started in 2024, is the only one with no phase, and was the 4th registered.

Adrenal Hyperplasia, Congenital

101 studies on the registry are indexed under Adrenal Hyperplasia, Congenital; 28 are open to participants now.

Browse Adrenal Hyperplasia, Congenital studies →

Open to participants now

5 of the 14 studies in Adrenal Hyperplasia, Congenital with a site in United Kingdom are open now. Recruiting first, the newest first:

All 5 open studies →

A study can be open while its sites in United Kingdom have not opened yet or have stopped. Only those recruiting at a site in United Kingdom →

Who these studies take

Of the 20 Adrenal Hyperplasia, Congenital studies recruiting now, 10 (50%) set no upper age limit and 9 (45%) stop at 75 or younger; 7 take children under 18; none take healthy volunteers.

This study: 15 Years to 20 Years · all sexes · healthy volunteers too.

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02

Study summary

Transition from paediatric to adult endocrinology is a challenge for adolescents, families and doctors. Up to 25% of young adults with chronic endocrine disorders are lost to follow-up ('drop-out') once the young adult moves out of paediatric care. Non-attendance and sub-optimal medical self-management can lead to serious and expensive medical complications. In a pilot study, adolescents suggested the use of e-technology to become more involved in the transition process. The investigators have designed and developed the YESS! game, a tool to help improve medical self-management in adolescents with chronic endocrine disorders. The hypothesis is that adolescents playing the YESS! game will show a larger increase in self-management score during the first year of transition and will have a lower drop-out rate at the adult endocrine outpatient clinic (OPC), compared to adolescents who do not play the game.

Read the detailed description

Rationale: Transition from paediatric to adult endocrinology is a challenge for adolescents, families and doctors. Up to 25% of young adults with chronic endocrine disorders are lost to follow-up ('drop-out') once the young adult moves out of paediatric care. Non-attendance and sub-optimal medical self-management can lead to serious and expensive medical complications. In a pilot study, adolescents suggested the use of e-technology to become more involved in the transition process. The investigators have designed and developed the YESS! game, a tool to help improve medical self-management in adolescents with chronic endocrine disorders. The hypothesis is that adolescents playing the YESS! game will show a larger increase in self-management score during the first year of transition and will have a lower drop-out rate at the adult endocrine outpatient clinic (OPC), compared to adolescents who do not play the game.

Objective: 1.To improve medical self-management. 2.To prevent drop-out from the adult outpatient clinic. Study design: multicentre randomized controlled trial Study population: 160 transition patients from 15 to 20 years old from the participating countries Spain, The United Kingdom, Belgium and the Netherlands. Patients are diagnosed with a chronic endocrine disorder. Intervention: The study consists of 4 study arms: receiving the YESS! game and toolkit (group YT), receiving the control game and toolkit (group GT), receiving the toolkit only (group T) and receiving regular transition care (group O). Every group will receive regular transition care. The transition toolkit consists of paper cards with assignments, ideas and tips regarding medical self-management. Main study parameters: Primary outcome: the Self-management and Transition to Adulthood with Rx (=treatment) (STARx) questionnaire score 12 months after inclusion in group YT compared to group O. Secondary outcome: the STARx questionnaire score 6 months after inclusion in group YT compared to the other study groups, the STARx questionnaire score 12 months after inclusion in group YT compared to group GT and T and the drop-out rate to the adult outpatient clinic in the first year after the last visit to the paediatric endocrinologist (i.e. one year after the moment of transfer) in group YT compared to groups GT, T and O.

Nature and extent of the burden and risks associated with participation: The participants are not exposed to any risks. The YESS! and the control game are safe apps played on a mobile phone or tablet. The burden consists of filling out the STARx questionnaires and playing the YESS! or control game. The questionnaires will be filled out online at home at the start of the study and after 6 and 12 months. Every 6 months the subject has an appointment at the outpatient clinic. The participant can play the YESS! game for a maximum of 15 minutes a day to prevent game addiction. The control game could be played for an unlimited amount of time, but will unlikely cause game addiction since the game is not considered challenging and exciting enough.

03

Conditions studied

  • Congenital Adrenal Hyperplasia
  • Hypogonadotropic Hypogonadism
  • Growth Hormone Deficiency
  • Combined Pituitary Hormone Deficiency
  • Turner Syndrome
  • Klinefelter Syndrome
  • Addison's Disease
  • Androgen Insensitivity Syndrome
  • Thyroid Dysgenesis

Keywords

  • Serious game
  • Endocrinology
  • Transition
04

Who can participate

Ages eligible
15 Years to 20 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Aged 15 to 20 years old.
  • Diagnosed with congenital adrenal hyperplasia, hypogonadotropic hypogonadism, Turner syndrome, Klinefelter syndrome, growth hormone deficiency, combined pituitary hormone deficiency, Androgen insensitivity syndrome, thyroid dysgenesis or Addison's disease

Exclusion criteria

Exclusion Criteria:

  • Lack of a mobile phone or tablet.
  • Intellectual disability or language barrier leading to inability to use the YESS! game or the control game.
05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Care provider, Investigator)
Enrollment
160 participants (estimated)

Study arms

  • Experimental
    Group YT

    Group receives YESS! game and transition-toolkit

    Device: YESS! game · Other: Transition-toolkit

  • Experimental
    Group GT

    Group receives control game and transition-toolkit

    Device: Snake '97 · Other: Transition-toolkit

  • Experimental
    Group T

    Group receives transition-toolkit

    Other: Transition-toolkit

  • No intervention
    Group O

    Group receives usual transition care

Interventions

  • DeviceYESS! game

    The YESS! game is a real-life game for smartphone or tablet in which the player has to solve a mystery. The adolescent plays an active role in the course of the story. This results in an interactive experience. During the game, the adolescent is challenged with regard to self-management and responsible behaviour in general life, with parallels to medical selfmanagement and responsible behaviour. The adolescent has to decide at several different moments whether to take action or not, whether to accept help or not and whether to share (fictive) confidential information or not. Other aspects that are covered are 'taking responsibility' and 'being on time'. The choices the adolescent makes throughout the game are registered in a coded manner, for later analysis. The game is available in Dutch, English and Spanish.

  • DeviceSnake '97

    Snake '97 is a game for smartphone or tablet which is free and can be downloaded in the App Store. The game is a remake of the original snake on the mobile phone in 1997 in which the player moves the snake around and makes the snake 'consume food' (little dots) which causes the snake to grow longer. The goal is to make the snake as large as possible. The game has 12 difficulty levels.

    Also known as: control game

  • OtherTransition-toolkit

    The transition toolkit consists of paper cards with assignments, ideas and tips regarding medical self-management.

06

What researchers measure

Primary outcomes

  1. Medical self-management group YT compared to group O @12months

    The difference in Self-management and Transition to Adulthood with Rx (treatment) (STARx) questionnaire score from baseline after 12 months in participants receiving the YESS! game and toolkit (group YT) compared to participants receiving regular care (group O).

    Time frame: 12 months

Secondary outcomes

  1. Medical self-management group YT compared to group GT and -T @12months

    The difference in Self-management and Transition to Adulthood with Rx (treatment) (STARx) questionnaire score from baseline after 12 months in participants receiving the YESS! game and toolkit (group YT) compared to participants receiving the control game and toolkit (group GT) and participants receiving the toolkit only (group T). Transition to Adulthood with Rx (treatment) (STARx) questionnaire score in group YT compared to group GT and group T after 12 months.

    Time frame: 12 months

  2. Medical self-management in group YT compared to group GT, -T and -O @6months

    The difference in Self-management and Transition to Adulthood with Rx (treatment) (STARx) questionnaire score from baseline after 6 months in participants receiving the YESS! game and toolkit (group YT) compared to participants receiving the control game and toolkit (group GT), participants receiving the toolkit only (group T) and participants receiving regular care (group O).

    Time frame: 6 months

  3. Drop-out rate adult outpatient clinic

    The difference in the drop-out rate to the outpatient clinic in group YT compared to group GT, group T and group O during the first year after the last visit to the paediatric endocrinologist (i.e. one year after the moment of transfer, t=24 m).

    Time frame: 12 months

07

Study locations

7 sites
08

References and documents

Individual participant data

Plan to share: Yes — The IPD has not been finalized yet. The investigators intent to share the full anonymized dataset, study protocol and statistical analysis plan upon request after publication of the results. Informed consent forms will not be shared."

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Dec 2024; primary completion for Dec 2026, 24 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 21, 2020
First posted
Feb 5, 2020
StartEst.
Dec 1, 2024
Primary completionEst.
Dec 1, 2026
CompletionEst.
Dec 1, 2026
Last update
Sep 7, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 7, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04252001
Lead sponsor
dr. Laura C. G. de Graaff-Herder
Responsible party
dr. Laura C. G. de Graaff-Herder (Principal Investigator, Erasmus Medical Center) — Sponsor-investigator
First posted
Feb 5, 2020
Start date
Dec 1, 2024 (estimated)
Primary completion
Dec 1, 2026 (estimated)
Completion
Dec 1, 2026 (estimated)
Last update
Sep 7, 2023

Study contacts

Laura CG de Graaff, MD PhD
principal investigator · Erasmus Medical Centre

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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