ADHD

This study will test whether living in a self-contained, AI-managed community (called a Microcity) can improve mental health and reduce addiction in adults with conditions like autism, ADHD, substance use disorders, and behavioral addictions. Up to 1 million participants will liv…

This phase 2 trial explores whether fecal microbiota transplantation (FMT) is safe, tolerable, and practical for adolescents aged 13–17 with ADHD. Participants receive oral FMT capsules after bowel prep, alongside antibiotics, to see if changing gut bacteria can influence ADHD sy…

This trial tests whether the MIND diet, a brain-healthy eating plan rich in vegetables, berries, nuts, and fish, can reduce ADHD symptoms in children aged 6 to 12 who are not taking medication. Over 12 weeks, half the children follow the MIND diet while the other half receive sta…

This phase 3 trial tests whether viloxazine extended-release capsules, taken once daily, can safely reduce ADHD symptoms in Korean children and adolescents aged 6 to 17. Participants receive either the drug or a placebo for 8 weeks, with doses adjusted based on response. The stud…

This study tests whether brief, 1-2 minute videos featuring personal stories from other parents can reduce stigma and improve help-seeking among parents of children aged 6-18 with depression, ADHD, or substance use problems. Researchers will recruit 1,600 parents online and rando…

This study tests whether a gamified virtual reality (VR) program can help children with ADHD improve their social skills. Children aged 6 to 12 will be randomly assigned to either the VR training, traditional social skills training, or a waitlist. Both training groups will attend…

This trial tests whether cognitive behavioural therapy for insomnia (CBT-I), with or without bright light therapy, can improve sleep and other outcomes in adolescents with ADHD who also have insomnia and a late sleep schedule. Participants aged 10-24 will receive CBT-I plus eithe…

This study investigates whether a synbiotic supplement—a mix of probiotics and prebiotics—can improve emotion regulation and reduce gastrointestinal problems in adults with ADHD. Participants take either the synbiotic or a placebo capsule daily for 12 weeks. The main focus is on …

This study tests whether daily iron supplements can improve restless sleep and ADHD symptoms in 70 children with ADHD who have low iron levels. Participants will take either iron or a placebo for 3 months, and their sleep and attention will be measured using motion-sensing leg ba…

This study tests if a diet rich in fiber and fermented foods can reduce core ADHD symptoms in adults aged 18-50. Two hundred participants will be randomly assigned to either this special diet or standard healthy eating advice for 12 weeks. Researchers will track changes in sympto…

This study tests whether a non-invasive brain stimulation technique called rTMS can reduce symptoms of ADHD and autism in children and teens aged 6-19. Participants will receive either real or sham (fake) stimulation over three weeks. The goal is to see if it is safe and if it im…

Researchers at Duke University are studying how natural estrogen changes across the menstrual cycle relate to sleep and ADHD symptoms in girls aged 11 to 15. Participants will wear a Garmin device to track sleep, provide hormone samples, and answer quick surveys about mood and fo…

Children with ADHD often try several medicines before finding one that works well. Researchers are testing PETRA, an online decision-support tool that uses personal data and research evidence to suggest three medication options for each child. The study enrolls children aged 6 to…

Researchers at a Paris children's hospital are studying how children with ADHD decide how much mental effort to put into a task. About 80 children aged 7 to 18 complete behavioral tasks, with and without their usual ADHD treatment, while a computer model estimates their motivatio…

This study tests whether a simple, non-invasive brain test (EEG) can predict which of two common ADHD medications—methylphenidate or amphetamines—works best for a child. About 220 children aged 7-11 with ADHD will try both medicines in a random order over 7 weeks. The goal is to …

This pilot study will test whether eye-tracking and balance tests can help identify early signs of ADHD in children aged 3 to 5. Researchers will compare 30 children with ADHD symptoms to 30 healthy children of the same age. The goal is to develop a platform for earlier detection…

This observational study will look at 185 children with epilepsy to find out how many also have ADHD symptoms. Researchers will track changes in ADHD symptoms and quality of life over 12 weeks. The goal is to identify risk factors and understand how ADHD affects epilepsy outcomes…