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OpenTrials
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NCT Number: NCT02649959

An Open Label Study of CM-AT for the Treatment of Children With Autism

This is a Phase III, open label extension study evaluating the continued safety and efficacy of CM-AT in pediatric patients with autism with all levels of fecal chymotrypsin.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

3 year–17 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Southwest Autism Research & Resource Center (S.A.R.R.C.), Phoenix, Arizona, United States

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About this study

Autism is clearly a significant cause of disability in the pediatric population. Treatment is based on the observation that many children with autism do not digest protein. CM-AT is a proprietary enzyme that is designed as a granulated powder taken three times daily.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age between 3 and 8 years, inclusive, at the time of signing informed consent/assent in Sponsor 00103 Study
  • Completion of the Sponsor's 00103 Study who continue to meet eligibility requirements
  • Currently in the 00102 open label study and continue to meet eligibility requirements
  • Subjects who initially qualified for 00103 screening, who subsequently failed Baseline entrance criteria for randomization (@Visit 1) Baseline assessment of the ABC eligibility requirement who continue to meet eligibility requirements
  • Up to 20 subjects 9-17 years of age who directly enroll into this study, who meet the current Diagnostic and Statistical Manual for Mental Disorders (DSM-IV-TR) diagnostic criteria for Autistic Disorder (AD), screened by the SCQ and confirmed by the ADI-R

Exclusion criteria

  • Patient weighing < 13kg
  • Allergy to porcine products
  • Previous sensitization or allergy to trypsin, pancreatin, or pancrelipase
  • History of severe head trauma, as defined by loss of consciousness or hospitalization, skull fracture or stroke.
  • Seizure within the last year prior to enrollment, or the need for seizure medications either at present or in the past.
  • Evidence or history of severe, moderate or uncontrolled systemic disease
  • Ongoing dietary restriction for allergy or other reasons except nut allergies. Lactose free is allowable but not dairy free.
  • Inability to ingest the study drug / non-compliance with dosing schedule.
  • Inability to follow the prescribed dosing schedule.
  • Use of any stimulant or non-stimulant medication or medications given for attention deficit hyperactivity disorder (ADHD) must be discontinued 5 days prior to the initial randomized study period.
  • Subjects taking an selective serotonin reuptake inhibitor (SSRI) must be on a stable dose for a minimum of 30 days prior to entering the study.
  • History of premature birth <35 weeks gestation.
  • Prior history of stroke in utero or other in utero insult.

Treatment and study plan

CM-AT

Drug

Single unit does powder of active substance (CM-AT) administered 3 times per day

Primary outcomes

  1. Aberrant Behavioral Checklist: Subscale of Irritability / Agitation (ABC-I) at fecal chymotrypsin (FCT) levels less than or equal to 12.6

    Time frame: Change from Baseline to each post-baseline visit, through study completion Week 72.

Secondary outcomes

  1. Aberrant Behavior Checklist: Subscale of Lethargy / Social Withdrawal (ABC-L) at fecal chymotrypsin (FCT) levels less than or equal to 12.6

    Time frame: Change from Baseline to each post-baseline visit, through study completion Week 72.

Sponsors and collaborators

Lead sponsor

Curemark

Industry

Registry information

Official study title

An Open-Label Extension Study of CM-AT for the Treatment of Children With Autism With All Levels of Fecal Chymotrypsin

Important dates

Study start
2015
Primary completion
2028
Study completion
2028
First posted
Jan 8, 2016
Registry last updated
Mar 18, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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