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Clinical Research Directory

Browse clinical research sites, groups, and studies.

118 clinical studies listed.

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ADHD

Tundra lists 118 ADHD clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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NOT YET RECRUITING

NCT07566468

Role of Theta Frequency Oscillations in Proactive and Reactive Control Processes in Youth With Attention Deficit Hyperactivity Disorder (ADHD) and Obsessive Compulsive Disorder (OCD)

Background: Attention deficit hyperactivity disorder (ADHD) is common in children. It can cause problems with attention and the ability to control actions and impulses. Obsessive compulsive disorder (OCD) is less common in children but not rare. It involves ongoing thoughts, urges, impulses, and repeated behaviors. Researchers want to study differences in brain activity between healthy children, those with ADHD, and those with OCD. Objective: To learn more about how the brain controls thinking and behavior. Eligibility: People aged 10 to 17 years with ADHD, OCD, or neither. Design: Participants will have 3 to 10 clinic visits in up to 1 year. Each visit will last 2 to 3 hours. Three visits are required: Behavioral. Participants will complete a computer task. Their mood, memory, attention, and thinking skills will be tested. EEG. Participants will undergo electroencephalography (EEG) to measure signals in their brain. Small electrodes will be placed on the scalp. A cap will be stretched over the head. Signals will be recorded while participants rest or do tasks on a computer. MRI. Participants will have a magnetic resonance imaging scan (MRI). They will lie on a table that rolls into a tube. The MRI will take pictures of their brain while they do tasks on a computer. Seven more visits are optional. These include 2 more EEG visits and 2 more MRI visits. Three will be magnetoencephalography (MEG) visits: MEG measures small magnetic field changes in the brain. A helmet with sensors will be placed on the head. Brain changes will be recorded while participants rest or do tasks on a computer.

Gender: All

Ages: 10 Years - 17 Years

Updated: 2026-09-14

1 state

ADHD
Obsessive Compulsive Disorder (OCD)
Healthy Volunteer
NOT YET RECRUITING

NCT07812948

Personalising ADHD Medication Treatment for Children and Young People

Attention deficit hyperactivity disorder (ADHD) is a common condition that affects children's behaviour, attention and activity levels. Medicines can be an effective treatment for ADHD, but it is often difficult to know which medicine will work best for a particular child. As a result, some children may need to try several medicines before finding one that is effective and well tolerated. This study aims to test a new online decision-support system called PETRA. The system is designed to help children, parents or carers, and doctors make shared decisions about ADHD medication. The study will assess whether it is practical and acceptable to run a larger clinical trial comparing this personalised approach with standard care.

Gender: All

Ages: 6 Years - 17 Years

Updated: 2026-09-10

ADHD
NOT YET RECRUITING

NCT07812714

ADHD and Mental Effort

ADHD is a common childhood disorder characterised by difficulties with attention and behaviour. Various cognitive characteristics are associated with ADHD, such as executive and motivational difficulties. Beyond these characteristics, our hypothesis is that children with ADHD may have specific strategies for allocating mental effort, influenced by motivational and metacognitive factors Our study assesses these dimensions using a behavioural task and a computational model in children with ADHD, both with and without treatment. It aims to identify individual cognitive profiles correlated with clinical characteristics. A better understanding of the cognitive mechanisms involved in ADHD would enable the development of personalised management of the disorder.

Gender: All

Ages: 7 Years - 18 Years

Updated: 2026-09-10

ADHD
NOT YET RECRUITING

NCT07756255

A Clinical Trial Evaluating Fecal Microbiota Transplantation (FMT) in Adolescents With ADHD

The primary goals of this phase 2 clinical trial are to determine the feasibility, safety, and tolerability of oral Fecal Microbiota Transplantation (FMT) in adolescents (aged 13-17) with Attention-Deficit/Hyperactivity Disorder (ADHD).

Gender: All

Ages: 13 Years - 18 Years

Updated: 2026-09-10

1 state

ADHD
ADHD - Attention Deficit Disorder With Hyperactivity
ADHD - Combined Type
NOT YET RECRUITING

NCT07805382

Dynamic Relationships Between Estrogen Fluctuations, Sleep, and Psychiatric Complexity Among Adolescent Females With ADHD

The purpose of the study is to establish the feasibility of collecting E2, Garmin-measured sleep, and ecological momentary assessments (EMA) of ADHD and related symptoms (mood, anxiety, executive functioning) across menstrual cycles among 20 peripubertal female adolescents aged 11-15 with ADHD, and to explore links between within-individual E2 variability, sleep, and EMA-derived outcomes.

Gender: FEMALE

Ages: 11 Years - 15 Years

Updated: 2026-09-09

1 state

ADHD
RECRUITING

NCT07717879

Forward Treatment of Attention Deficit and Hyperactivity Using Solriamfetol (FOCUS-2)

This study is a Phase 3, multi-center, randomized, 6-week, double-blind, placebo-controlled, parallel-group trial to assess the efficacy and safety of solriamfetol in children aged 6 to \<12 years with ADHD.

Gender: All

Ages: 6 Years - 11 Years

Updated: 2026-09-08

14 states

ADHD
RECRUITING

NCT07717892

Forward Treatment of Attention Deficit and Hyperactivity Using Solriamfetol (FOCUS-3)

This study is a Phase 3, multi-center, randomized, 6-week, double-blind, placebo-controlled, parallel-group trial to assess the efficacy and safety of solriamfetol in adolescents aged 12 to \<18 years with ADHD.

Gender: All

Ages: 12 Years - 17 Years

Updated: 2026-09-08

14 states

ADHD
ENROLLING BY INVITATION

NCT07773883

An Open-Label Study to Assess the Long-Term Safety of Solriamfetol in Children and Adolescents With ADHD

This study is a Phase 3, multi-center, open-label trial to evaluate the long-term safety of solriamfetol in children and adolescents with ADHD.

Gender: All

Ages: 6 Years - 18 Years

Updated: 2026-09-08

3 states

ADHD
ACTIVE NOT RECRUITING

NCT06540547

Moms Managing Attention-Deficit/Hyperactivity Disorder (ADHD) Study

The study will develop and test a behavioral program for pregnant individuals with Attention-Deficit/Hyperactivity Disorder (ADHD). This behavioral program will include skills for managing ADHD and related symptoms during pregnancy and after delivery and will be taught by a behavioral therapist in OB care settings.

Gender: FEMALE

Ages: 18 Years - 55 Years

Updated: 2026-09-08

1 state

ADHD
Parenting
NOT YET RECRUITING

NCT07661823

QAIAx (AIhealth4U) - AI Smart Health Cities: Microcity Enclave Program (Quantum AI/AGI Agency a/k/a AI City Hall Project - UPSTO App Nos. 64/074,526, 64/063,557, 64/105,164, 63/903,181, 63/729,428, 64/125,360)

BRIEF SUMMARY A. "What is the purpose of this study?" This study will test whether the "AI City Hall Project" (QAIAx), a quantum artificial intelligence (AI) public health agency, can provide free or low-cost behavioral and mental health services inside self-contained, dome-enclosed communities called "Microcities". Researchers want to see if AI-managed public administration, AI humanoid robots, holoportation of human-figures via 'holo-suites' (e.g., AI-119 Kikkeri Holo-Suit; AI-119 Vulcan QM-Ware) and advanced AI mental-health tools can lower housing and care costs, improve mental health outcomes (e.g., particular ecosystems using AI tools among persons with one or more addiction disorders), and be financially sustainable for people on fixed incomes or public assistance. B. "What conditions does the study focus on?" The study focuses on adults with: * Autism spectrum disorders (Asperger's, autism, ADHD, ASD) * Substance use disorders (alcohol, opioids, marijuana, cocaine, MDMA/ecstasy, tobacco/nicotine) * Psychiatric conditions (personality disorders, narcissism, gender dysphoria, eating disorders) * Behavioral addictions (gambling, sex addiction) and related issues (sex offence history). C. "What does the study involve?" Eligible volunteers live in an omni AI-managed Microcity for up to 24 months. The community is housed in a geodesic dome that contains all daily necessities: housing, food, utilities, healthcare, and public services. Daily life is managed by an AI system (ISAC) and AI humanoid robots, with only occasional human oversight. Participants receive free mental-health treatment that may include AI-driven counselling, virtual-reality therapy (holo-suits), and non-invasive digital "attitude inoculation" protocols designed to reduce stress and addiction cravings. All participants also take AI-technology courses as a condition of enrolment. The study does not use any FDA-regulated drug, device, or biologic. \*\*Who can participate?\*\* You may be able to join if you: * Are an adult (18 years or older) * Have a diagnosis of one of the listed mental-health or addiction disorders * Are referred by a licensed health professional (e.g., RN, NP, PhD, MD), a non-profit organization (e.g., 501(c)(3), university, church), or a public agency (e.g., case manager, social worker, parole/probation officer, judge) * Are willing to live in a closed, AI-managed community for up to one year and complete AI educational courses. Participants who are veterans, receive public assistance (e.g., VA disability, SSDI/SSI, Medicaid, Medicare), or are experiencing homelessness may be prioritized. \*\*Where is the study taking place?\*\* The study will be conducted at Microcity sites in the United States and internationally. The first administrative site is in Richmond, Virginia, USA. Additional sites are planned in partner nations, including tribal lands, military installations, and special economic zones. \*\*Who is sponsoring the study?\*\* The study is sponsored by Veterans Recovery Network Inc., a SCDV-owned non-profit organization, in collaboration with AI-119 Vulcan Project Research \& Educational Technology Co. (PRETCO). The study is conducted under U.S. federal research and development authorities (28 U.S.C. §1498; 10 U.S.C. §§§§ 4001, 4021, 4022, and 4023) and is part of a Cooperative Research and Development Agreement (CRADA) with participating segments or RDT\&E programming missions of the United States Defense Department (DoW). This summary describes a planned clinical study. Not all details may be final. Information may change as the study progresses.

Gender: All

Ages: 17 Years - 99 Years

Updated: 2026-09-04

1 state

Asperger's Disorder
Asperger Disorder
Autism Disorder
+41
NOT YET RECRUITING

NCT07594730

Brief Intervention Addressing Stigma Among Parents of Children With Mental Health Problems

The goal of this study is to test the efficacy of brief video interventions parental internalized stigma and stigma-related outcomes (e.g., treatment intentions, caregiver burden, secrecy) among parents (ages 25-50) of children ages 6-18 with depression, ADHD, or substance use problems. Timely identification and treatment of mental health problems in youth is a public health priority. However, many youth do not receive treatment, and stigma has been identified as the primary barrier to help-seeking. Parents experience stigma related to their children having mental health problems, which has been associated with reduced help-seeking and increased parental distress. Prior experiments have found brief video-based interventions (BVIs), 1-2 minute videos similar to those viewed by youth on social media platforms, based on the principle of "social contact" with individuals affected by a stigmatized condition, effective in reducing mental health stigma and increasing help-seeking. In this 4-arm RCT, the investigators will recruit parents aged 25-50 using an online crowdsourcing platform, to test the efficacy of BVIs featuring a personal parent narrative of their experience with their child's a) depression, b) ADHD, or c) substance use, or d) a control condition that provides general written psychoeducational information without social contact.

Gender: All

Ages: 25 Years - 50 Years

Updated: 2026-09-03

1 state

Depression Disorders
ADHD
Substance Abuse
+3
NOT YET RECRUITING

NCT07784933

Immersive Gamified Virtual Reality-Based Training for Children With Attention Deficit Hyperactivity Disorder

This study evaluates a gamified virtual reality (VR) training program designed to help children with ADHD. Participants will be randomly assigned to one of three groups: the VR training group, a traditional training group, or a waitlist group. Children in both training groups will complete 12 sessions over three weeks. To measure the program's effectiveness, researchers will test all participants four times: before the study starts, immediately after the training ends, and at 3-month and 6-month follow-ups. Finally, children from the VR group will be interviewed after the 6-month check-in to share their experiences, including the benefits and challenges they encountered.

Gender: All

Ages: 6 Years - 12 Years

Updated: 2026-08-25

ADHD
Social Skills
RECRUITING

NCT07784348

Evaluating the Efficacy of Central Executive Training (CET) For Young Children With ADHD

Initial non-randomized trial of behavioral parent training (BPT) compared to central executive training (CET), followed by a randomized controlled trial of CET+BPT for young children with ADHD.

Gender: All

Ages: 4 Years - 8 Years

Updated: 2026-08-25

1 state

ADHD
COMPLETED

NCT03333668

Experimental fMRI Study of Guanfacine and Lisdexamfetamine in ADHD Adolescents

This is not a clinical trial. The aim of this study is to understand the mechanism of action of two recently licensed drugs for ADHD on brain function. The investigators will compare the brain activation changes elicited by Guanfacine extended release (GXR; a non-stimulant drug) with the brain activation changes elicited by Lisdexamfetamine (LISDEX; a stimulant drug) and by placebo in 20 drug-free patients with ADHD using functional Magnetic Resonance Imaging (fMRI). For this purpose the investigators intend to scan participants during their performance of tasks of attention, working memory, and inhibition, which the investigators know from previous studies to elicit abnormal brain activation patterns in ADHD patients (Rubia et al., 2005; Smith et al., 2006).

Gender: All

Ages: 8 Years - 20 Years

Updated: 2026-08-12

ADHD
ACTIVE NOT RECRUITING

NCT04219280

Evaluating Treatment of ADHD in Children With Down Syndrome

Children with Down syndrome (DS) have a 3-5 time greater prevalence of Attention Deficit Hyperactivity Disorder (ADHD) than typically developing (TD) children. Despite this higher risk of ADHD, rates of stimulant medication treatment are disproportionately low in children with DS+ADHD, even though stimulants are the most efficacious ADHD treatment and are recommended by consensus guidelines for use in children with intellectual disability and ADHD. The investigators propose the first randomized clinical trial (RCT) of stimulant medication in children with DS+ADHD. This RCT may provide evidence regarding the short- and long-term safety and efficacy of stimulant use in children with DS+ADHD, both with and without CHD. All children enrolled in the study will complete a comprehensive assessment battery evaluating ADHD diagnostic criteria, as well as behavioral, cognitive, academic, and functional impairments.

Gender: All

Ages: 6 Years - 17 Years

Updated: 2026-08-10

4 states

Down Syndrome
ADHD
RECRUITING

NCT03221244

Virtual Reality Attention Management

Problems with distraction are widespread in the 21st century, but for people with developmental delays or behavioral challenges they can have more damaging effects. For example, susceptibility to distraction is associated with worse school and social performance, lower high school graduation rates, and increased incidence of serious accidents. The investigators' goal is to improve understanding of distractibility and develop a targeted treatment. The proposed intervention is based on models of habituation, which is a term that means reduced physiological and emotional response to a stimulus (e.g. moving object, or loud noise, etc.) as it is seen repeatedly. The investigators use virtual reality technology to show study participants distracting stimuli repeatedly in a virtual classroom setting, and their hypothesis states that participants will improve attention in the face of distraction by training with this technology intervention. The virtual classroom setting is especially relevant for children who have significant challenges with distractibility, such as children with ADHD. This intervention will likely be effective in helping individuals with other clinical disorders and perhaps the general population as well.

Gender: All

Ages: 8 Years - 12 Years

Updated: 2026-08-07

1 state

ADHD
ACTIVE NOT RECRUITING

NCT05700539

Internet-based Cognitive Behavioral Therapy for Adult Attention Deficit Hyperactivity Disorder

Attention deficit hyperactivity disorder (ADHD) is a disorder characterized by lack of attention, hyperactivity, and impulsivity. It can have major impact on everyday life and result in negative consequences for one's personal, academic, and work situation. For individuals with symptoms of ADHD, increased levels of anxiety and depression are common, and an overall reduction of quality of life is often present. This study protocol describes a clinical trial of internet-based cognitive behavioral therapy (iCBT), using a randomized controlled study design, with the primary aim to increase quality of life, as well as to reduce symptoms of ADHD, anxiety, depression, and stress. A second aim is to investigate, by qualitative means, what aspects of treatment were perceived as helpful and hindering when it comes to completing iCBT. Two hundred participants with symptoms of ADHD will be included and randomized to two conditions (treatment and wait-list control). The treatment period is comprised of ten weeks, with two mandatory modules and ten modules from which the participants can choose freely. Self-report measures are completed by the participants at baseline and end of treatment, as well as at a six-month follow-up. The treatment is guided by therapists and consists of weekly correspondence with the participants. The study will utilize an intention to treat design, with ANOVAs and Reliable Change Index to evaluate treatment effects. The qualitative part of the project will be interview-based and employ thematic analysis. Lastly, a psychometric evaluation of a common instrument for determining ADHD-symptoms will also be made. The results will hopefully contribute to the evidence base for iCBT for individuals with symptoms of ADHD and help disseminate potentially effective interventions.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-07

ADHD
RECRUITING

NCT06081348

Sertraline vs. Placebo in the Treatment of Anxiety in Children and AdoLescents With NeurodevelopMental Disorders

There are currently no approved medications for the treatment of anxiety in children and youth with neurodevelopmental disorders (NDDs), both common and rare. Sertraline, a selective serotonin reuptake inhibitor, has extensive evidence to support its use in children's and youth with anxiety but not within NDDs. More research is needed to confirm whether or not sertraline could help improve anxiety in children and youth with common and rare neurodevelopmental conditions. This is a pilot study, in which we plan to estimate the effect size of reduction in anxiety of sertraline vs. placebo. across rare and common neurodevelopmental disorders, and determine the best measure(s) to be used as a primary transdiagnostic outcome measure of anxiety, as well as diagnosis specific measures in future, larger-scale clinical trials of anxiety in NDDs.

Gender: All

Ages: 8 Years - 17 Years

Updated: 2026-07-27

3 states

Neurodevelopmental Disorders
Autism
Autism Spectrum Disorder
+14
COMPLETED

NCT06626750

Evaluating Stress Management Strategies Within the School Readiness Parenting Program

The goal of this randomized study is to learn if adding three additional parent training sessions (focused on alleviating parental stress) to an already well-established treatment (School Readiness Parenting Program \[SRPP\]) in improving outcomes up to 6- and 12-months later for families of children with disruptive behavior disorders. The main questions it aims to answer are: The primary objective of this protocol is to evaluate the effects of three additional cognitive behavioral therapy (CBT) based parent training sessions to the SRPP to reduce parent stress and improve parent-child interactions. The secondary objective of this protocol is to evaluate the behavioral, emotional, and physical health-based functioning among young children with ADHD. Researchers will compare families who receive the SRPP alone to families who receive the SRPP + the three additional CBT focused sessions. Parents will be sent surveys to complete prior to the baseline assessment via REDCap (online). Parent and child participants will undergo 2 hours of baseline assessments evaluating behavioral, cognitive, and academic functioning as well as parent-child interactions. Parents will provide contact information for their child's teacher and the teacher will sent three surveys to complete online via REDCap.

Gender: All

Ages: 4 Years - 6 Years

Updated: 2026-07-23

1 state

Parenting
Stress
Disruptive Behavior Disorder
+2
NOT YET RECRUITING

NCT07717359

ADHD, Gut Problems and Synbiotic

The scope of this study is to evaluate the impact of a synbiotic product (a combination of probiotic bacteria and prebiotics) on symptoms reported by participants with ADHD. The main focus is to study the efficacy of the synbiotic product as compared to a placebo in improving emotion regulation and gut-health associated symptoms in adults with ADHD.

Gender: All

Ages: 18 Years - 64 Years

Updated: 2026-07-21

ADHD
Gastrointestinal
Emotion Regulation Abilities
RECRUITING

NCT06284655

The Effect of a Brief Educational Intervention for Adults With ADHD

This RCT-study proposes the evaluation of an intensive educational intervention tailored for adults with Attention Deficit Hyperactivity Disorder (ADHD) in community mental health centers (CMHCs). Given the prevalent challenges of prolonged waiting lists and low patient engagement in CMHCs, the research seeks to assess the efficacy of this intervention in enhancing patient engagement, self-efficacy, satisfaction with the information and overall health outcomes. The intervention, developed collaboratively with user representatives, combines a brief group-based educational sessions with standard clinical care. The primary hypotheses posit that this approach will lead to increased patient satisfaction with the treatment, patient self-efficacy, and activation compared to conventional treatment. Additionally, it aims to improve patients' satisfaction with information received. The study will employ a ITT analysis to assess the intervention's effects against usual treatment practices in outpatient settings. The anticipated outcome is a significant improvement in level of patient satisfaction, level of self-efficacy and level of satisfaction with the received information for patients with ADHD, potentially informing clinical practices and optimizing care for adults with ADHD.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-07-20

ADHD
COMPLETED

NCT04082234

Reducing Disparities in Behavioral Health Treatment for Children in Primary Care

The purpose of this study is to address a decisional dilemma faced by health system officials, policy makers, and clinical leaders: "Does it make sense to integrate behavior therapy into primary care practice to treat children with ADHD from low-income settings? More specifically, does integrated care improve access to services and patient-centered outcomes for underserved children with ADHD?" Participants will be randomly assigned to one of two groups: Behavior therapy integrated into primary care (Partnering to Achieve School Success; PASS program) to treatment as usual (TAU) informed by American Academy of Pediatrics (AAP) guidelines for ADHD practice and facilitated by electronic practice supports." Participants will be 300 children (ages 5-11) with ADHD and their caregivers served at Children's Hospital of Philadelphia Care Network Locations (primary care offices). Participants are drawn from primary care locations that serve primarily low-income and racial/ethnic minority population.

Gender: All

Ages: 5 Years - 11 Years

Updated: 2026-07-10

1 state

ADHD
COMPLETED

NCT05796427

Testing "SupporT for ADHD and Related Treatment" (START) for Families of Children With ADHD

The randomized control trial (RCT) study includes 2 aims; one being to test whether START increases access to treatment for ADHD. Investigators believe the intervention group will demonstrate improved treatment engagement and access to all treatments compared to controls. The second aim is to explore whether START leads to functional improvements across home, social and academic domains for the child and family. Investigators believe the intervention group will show better functioning including improved family and peer relationships and reduced parent stress compared to controls. Before taking part in our study all participants will undergo a psychiatric evaluation. Eligible participants will be randomized to START while controls receive a pamphlet with ADHD information. Students and staff with related experience who are not mental health professionals will be trained to deliver START. START includes 6 modules, typically delivered over 6 sessions.

Gender: All

Ages: 6 Years - 12 Years

Updated: 2026-07-10

1 state

ADHD
COMPLETED

NCT05119660

Modulation of Frontoparietal Dynamics Underlying Adolescent Working Memory Deficits

The purpose of this study is to test whether a single session of brain stimulation (called repetitive transcranial magnetic stimulation \[rTMS\]) can improve the brain activity underlying 'working memory.' Working memory is the ability to hold information 'in mind' to complete daily activities. This study involves teenagers with ADHD as well as healthy young adults. It is funded by The COBRE Center for Neuromodulation (CCN) at Butler Hospital (Pilot Project)

Gender: All

Ages: 13 Years - 25 Years

Updated: 2026-07-09

1 state

ADHD