Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

ClinicalTrials.gov 5 recruiting now early-phase tilt small index

Asperger Syndrome: early-phase trial registry

5 of 10 indexed Asperger Syndrome trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,724 of 28,707 conditions by registered trial count.

10 US clinical trials · 5 currently recruiting · #1,724 of 28,707 conditions by registered trial count

Asperger Syndrome: 10 US clinical trials tracked, 5 recruiting.

Asperger Syndrome is the subject of 10 registered US clinical trials on ClinicalTrials.gov, 5 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is University of Pennsylvania, running 2 of these trials.

Enrollment posture brief

Registry condition asperger-syndrome

OPEN 5 | RECR 50% | LATE 0 | EARLY 2 | RANK #1724 | SPON 2

Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)

Acute Leukemia of Ambiguous 80%Asperger Syndrome (this)50%Achondroplasia40%Accelerated Phase Chronic My20%Accidental Fall20%
Open-enrollment share among volume-matched conditions near Asperger Syndrome

Asperger Syndrome lists 5 open slots (50% of 10 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Asperger Syndrome on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Asperger Syndrome is recruiting above its size-band peers.

    5 of 10 indexed trials (50%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Asperger Syndrome research.

    University of Pennsylvania accounts for 2 of 10 trials (20%). 9 distinct sponsors appear on at least one study for this condition label.

  3. Most Asperger Syndrome trials plan to enrol fewer than 100 people.

    Median target enrolment is 86 among the 10 trials that report a genuine target (sentinel values excluded). 6 of those (60%) plan for fewer than 100 participants.

  4. Asperger Syndrome research is mostly interventional.

    9 interventional and 1 observational studies make up this index (90% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 22

Open and recent trials

10 total, page 1 of 1

RECRUITING NA 188 participants

Telehealth Parent-Implemented Intervention for Young Children With Autism Spectrum Disorder (ASD)

Hugo W. Moser Research Institute at Kennedy Krieger

NCT05176808

RECRUITING NA 180 participants

Alpha Auditory Entrainment for Cognitive Enhancement and Sensory Hypersensitivity in Youth With Developmental Disorders

Children's Hospital Medical Center, Cincinnati

NCT06227780

RECRUITING 100 participants

Studies of Brain and Body Interaction

Rutgers University

NCT03672266

RECRUITING NA 67 participants

Transcranial Magnetic Stimulation for Restricted and Repetitive Behavior in ASD

Stanford University

NCT04532424

RECRUITING NA 40 participants

Randomized Clinical Trial of TUNE In 3.0: A Social/Emotional Program for Adults With Autism Spectrum Disorder

University of Pennsylvania

NCT06859918

ACTIVE NOT RECRUITING NA 65 participants

Behavior Therapy for Irritability in Autism

Yale University

NCT04654260

COMPLETED Phase 2 479 participants

Withdrawal Study of Memantine in Pediatric Patients With Autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified Previously Treated With Memantine

Forest Laboratories

NCT01592747

COMPLETED NA 86 participants

Confirmatory Efficacy Trial of Cognitive Enhancement Therapy for Adult Autism Spectrum Disorder

University of Pittsburgh

NCT03170453

COMPLETED NA 44 participants

Services to Enhance Social Functioning in Adults With Autism Spectrum Disorders

University of Pennsylvania

NCT04788537

COMPLETED Phase 2 31 participants

A Study of Oral N-Acetylcysteine in Children With Autism Spectrum Disorders

Indiana University School of Medicine

NCT00453180

Phase Distribution

PhaseTrial count
Phase 2 2

Named interventions

Most-linked intervention names on Asperger Syndrome records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Memantine Hydrochloride (HCl) Drug
1 trials
Training to Understand and Navigate Emotions and Interactions (TUNE In) Behavioral
1 trials
Psychoeducation and Supportive Therapy (PST) Behavioral
1 trials
Behavioral Therapy for Irritability in Autism Behavioral
1 trials
Alpha Auditory Entrainment Other
1 trials
TUNE In: Training to Understand and Navigate Emotions and Interactions Behavioral
1 trials
Enriched Supportive Therapy Behavioral
1 trials
Cognitive Enhancement Therapy Behavioral
1 trials

US sites by state

Facility locations filed on Asperger Syndrome trials. A trial with sites in several states counts in each.

Pennsylvania 3 trials
California 2 trials
Ohio 1 trials
New Jersey 1 trials
Maryland 1 trials
Indiana 1 trials
Florida 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Asperger Syndrome page

10 registered trials, 5 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Asperger Syndrome condition card totals 10 registered trials; most-linked intervention Memantine Hydrochloride (HCl); top US site state Pennsylvania. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.