An interventional study of Digital Game Intervention and Tetris in ADHD or ADHD Traits, sponsored by The Hong Kong Polytechnic University. Not yet recruiting. Open to participants aged 6 Years to 12 Years. Per ClinicalTrials.gov, last updated 2026-10-28.
Sponsored by The Hong Kong Polytechnic University · Not applicable, Interventional, and Supportive care
The goal of this clinical trial is to learn whether a self-administered digital game can improve attention, memory, and planning and reduce ADHD-like symptoms in children aged 6-12 in Hong Kong who have subclinical or vulnerable ADHD symptoms. The main questions it aims to answer are:
Does playing a 30-minute digital game 5 times per week for 8 weeks improve sustained attention, memory, and planning?
Does it reduce parent- and teacher-rated inattention and hyperactivity/impulsivity symptoms compared with an active control game (Tetris)?
Researchers will compare a first-wave group that receives the digital game first and then Tetris with a second-wave group that receives Tetris first and then the digital game, to see if the digital game produces greater improvements.
Participants will:
Be screened for subclinical ADHD using parent and teacher questionnaires.
Play the "Lucky Panda" digital game or Tetris for 30 minutes, 5 times a week for 8 weeks, then switch to the other activity for another 8 weeks.
Complete computer-based tasks measuring attention, memory, and planning at three time points: before the study, after the first 8 weeks, and after the second 8 weeks.
Have their parents and teachers complete ADHD symptom questionnaires at the same three time points.
Have parents report their child's interest in the game, adherence, and other digital game habits.
This study focuses on children with subclinical symptoms, not children already diagnosed with ADHD or receiving ADHD treatment. If effective, the game may offer an accessible early self-help intervention while families wait for professional care.
1,817 studies on the registry are indexed under Attention Deficit Disorder with Hyperactivity; 296 are open to participants now.
This study's planned enrollment of 100 is above the median of 71 across 1,437 interventional studies indexed under Attention Deficit Disorder with Hyperactivity.
Browse Attention Deficit Disorder with Hyperactivity studies →The Hong Kong Polytechnic University is the lead sponsor of 679 studies on the registry; 257 are open to participants now.
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Exclusion Criteria:
Other: Digital Game Intervention
Other: Tetris
The intervention is "Lucky Panda," a home-based, self-administered digital game for children aged 6-12 with subclinical ADHD symptoms. Children play 30 minutes/day, 5 days/week for 8 weeks on a family tablet or smartphone under parental supervision. It requires no clinic visits, neurofeedback, VR, or specialised equipment. The game is based on Barkley's and Brown's ADHD models and includes three subgames targeting attention, working memory, and planning. A narrative in which children help "Lucky Panda" collect Crystal Stones provides engagement and rewards.
Tetris
Visual Continuous Performance Task (CPT)
Sustained attention measured by the Visual Continuous Performance Task. The outcome is the longest interval between errors in seconds. A longer interval indicates better sustained attention. This task is not a scale and has no fixed minimum or maximum.
Time frame: Baseline (Week 0), Week 8 (Test-1), Week 16 (Test-2)
Memory recognition task
Memory ability measured by a word recognition task. Participants memorize 20 words and then recognize them among 40 words. The outcome is the percentage of correct recognition. The range is 0 to 100. A higher percentage indicates better memory.
Time frame: Baseline (Week 0), Week 8 (Test-1), Week 16 (Test-2)
London Tower task
Planning ability measured by the Tower of London task. The outcome is the number of moves needed to reach the target configuration. Fewer moves indicate better planning. The minimum depends on the item and there is no fixed maximum.
Time frame: Baseline (Week 0), Week 8 (Test-1), Week 16 (Test-2)
Swanson, Nolan, and Pelham Rating Scale, Fourth Edition (SNAP-IV), Parent Form
Parent rated ADHD symptoms measured by the Swanson Nolan and Pelham Rating Scale Fourth Edition Parent Form. The Inattention and Hyperactivity and Impulsivity subscales each have 9 items rated from 0 Never to 3 Very often. The subscale mean score range is 0 to 3. Higher scores indicate worse ADHD symptoms. If total subscale scores are reported the range is 0 to 27 for each subscale and 0 to 54 for the full scale. Higher scores indicate worse ADHD symptoms.
Time frame: Baseline (Week 0), Week 8 (Test-1), Week 16 (Test-2)
Conners' Abbreviated Symptom Questionnaire (C-ASQ), Teacher Form
Teacher rated ADHD symptoms measured by the Conners Abbreviated Symptom Questionnaire Teacher Form. The questionnaire has 10 items rated from 0 Never to 3 Very often. The total score range is 0 to 30. Higher scores indicate worse ADHD symptoms.
Time frame: Baseline (Week 0), Week 8 (Test-1), Week 16 (Test-2)
No study locations are listed for this record.
Start is estimated for Nov 2026; primary completion for Dec 2026, 1 month later.
Of 479 non-industry interventional studies with no phase under Attention Deficit Disorder with Hyperactivity, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 43. This study's planned 1 month is below that.
Counting every sponsor, half of 510 studies reached it within 23 months; a quarter within 11 and three quarters within 41.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Attention Deficit Disorder with Hyperactivity →
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