Attention deficit-hyperactivity disorder
MONDO:0007743A disorder characterized by a marked pattern of inattention and/or hyperactivity-impulsivity that is inconsistent with developmental level and clearly interferes with functioning in at least two settings (e.g. at home and at school). When present, the symptoms of hyperactivity are most often present before the age of 7 years. There are three recognized presentations or subtypes from most to least common: combined type, inattentive/distractible type, hyperactive/impulsive type.
Also known as: attention deficit hyperactivity disorder, attention deficit-hyperactivity disorder, attention deficit/hyperactivity disorder, ADHD
368 clinical trials for this condition and its sub-types.
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Broader categories
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ADHD drug trial for 4-5 year olds halted early
Disease control TerminatedThis study tested a long-acting form of methylphenidate (Ritalin) given in the evening to children aged 4-5 with ADHD. The goal was to see if it improved ADHD symptoms and was safe. However, the trial was stopped early and only enrolled 26 children, so we cannot draw firm conclus…
Phase: PHASE3 • Sponsor: Ironshore Pharmaceuticals and Development, Inc • Aim: Disease control
Last updated Jun 27, 2026 07:56 UTC
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Ginseng focus trial halted early – little to go on
Symptom relief TerminatedThis study tested whether a single 200 mg dose of American Ginseng (Cereboost) could improve attention and brain function in healthy young adults aged 18-40. Participants completed cognitive tests and gave blood samples over 6 hours. However, the trial was terminated early and on…
Phase: NA • Sponsor: University of East Anglia • Aim: Symptom relief
Last updated Jun 28, 2026 00:00 UTC
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ADHD study tests if treadmill and balance exercises boost brain power
Symptom relief TerminatedThis study looked at whether different types of exercise—like treadmill running, balance training, or a mix of balance and thinking tasks—could improve ADHD symptoms and brain function in college students. It planned to enroll 130 students with ADHD and compare them to healthy st…
Phase: NA • Sponsor: Wuhan Sports University • Aim: Symptom relief
Last updated Jun 27, 2026 12:02 UTC
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ADHD combo drug trial stops early – only 2 teens enrolled
Symptom relief TerminatedThis phase 2 trial tested a combination of two drugs, NRCT-101SR and NRCT-202XR, for teens with ADHD. The goal was to see if the combo could ease symptoms and reduce side effects better than one drug alone. However, the study was terminated early and only enrolled 2 participants,…
Phase: PHASE2 • Sponsor: Neurocentria, Inc. • Aim: Symptom relief
Last updated Jun 27, 2026 08:11 UTC
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ADHD drug trial for teens halted early – what we know
Symptom relief TerminatedThis study tested a new medicine called NRCT-101SR for teenagers aged 13 to 17 with ADHD. The goal was to see if it safely reduces ADHD symptoms compared to a placebo. The trial was stopped early, so results are limited. It involved 95 participants and used standard ADHD rating s…
Phase: PHASE2, PHASE3 • Sponsor: Neurocentria, Inc. • Aim: Symptom relief
Last updated Jun 27, 2026 08:11 UTC
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Can an eHealth program help teachers support kids with ADHD, autism, and learning disabilities?
Knowledge-focused TerminatedThis study tested an online program called Teacher Help, designed to train teachers in evidence-based strategies for students with ADHD, autism spectrum disorder, or learning disabilities. Teachers worked through six online sessions with support from school psychologists. The goa…
Phase: NA • Sponsor: IWK Health Centre • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:51 UTC