Please select the eligibility criteria that correspond to the clinical trial below.
Title: Multisite Controlled Secretin Trial in Autism
Brief Summary: Many drugs used to treat autism target specific symptoms, such as hyperactivity and aggressiveness. Few drugs target the core autistic symptoms of impaired social interaction and communication. This study will evaluate two forms of the drug secretin for the treatment of core autistic symptoms.


Options:
A: INCLUSION CRITERIA

All Participants:

1. Male and female participants, ages 8-17 years (inclusive)

   Participants with Autism Spectrum Disorder:
2. Meets Diagnostic and Statistical Manual-5 autism spectrum disorder diagnostic criteria, as established by clinical diagnostic interview
3. At least moderate severity of social impairment, as measured by a total raw score of ≥85 on the parent/guardian-completed Social Responsiveness Scale, Second Edition (SRS-2) and a score of ≥4 on the clinician-administered Autism Spectrum Disorder Clinical Global Impression-Severity scale (ASD CGI-S)

Healthy Control Participants:

2. Age-, sex-, and IQ-matched with participants with autism spectrum disorder 3. No Axis I diagnoses, as established by the Kiddie Schedule for Affective Disorders and Schizophrenia-Epidemiological Version (K-SADS-E) and confirmed by clinical diagnostic interview 4. No significant traits of autism spectrum disorder, as measured by a total raw score of \<60 on the parent/guardian-completed Social Responsiveness Scale, Second Edition

EXCLUSION CRITERIA

All Participants:

1. IQ ≤70 based, on the Wechsler Abbreviated Scale of Intelligence, Second Edition (WASI-II) Vocabulary and Matrix Reasoning subtests
2. Impaired communicative speech
3. Current treatment with the following medications, which are known to impact glutamate levels:

   1. Lamotrigine
   2. Amantadine
   3. N-acetylcysteine
   4. D-cycloserine
4. Current treatment with a psychotropic medication, not listed above, on a dose that has not been stable for at least 4 weeks prior to study baseline
5. Co-administration of drugs that compete with memantine for renal elimination using the same renal cationic system, including hydrochlorothiazide, triamterene, metformin, cimetidine, ranitidine, quinidine, and nicotine
6. Initiation of a new psychosocial intervention within 30 days prior to randomization
7. Participants who are pregnant and/or nursing
8. Participants with a history of non-febrile seizures without a clear and resolved etiology
9. Participants with a history of or a current liver or kidney disease
10. Clinically unstable psychiatric conditions or judged to be at serious suicidal risk
11. Participants who meet for alcohol or drug dependence or abuse on the Kiddie Schedule for Affective Disorders and Schizophrenia-Epidemiological Version. If the participant has a recent history of substance abuse, as an added precaution, there will be a 2-week washout period before initiating the trial. There are no known safety issues relating to memantine and recent history of substance abuse.
12. Serious, stable or unstable, systemic illness, including hepatic, renal, gastroenterological, respiratory, cardiovascular (including ischemic heart disease), endocrinologic, neurologic, immunologic, or hematologic disease
13. Participants with severe hepatic impairment (Liver Function Tests \[LFTs\] \>3 times the Upper Limit of Normal \[ULN\])
14. Participants with genitourinary conditions that raise urine Power of Hydrogen (pH) (e.g., renal tubular acidosis, severe infection of the urinary tract)
15. Known hypersensitivity to memantine
16. Severe allergies or multiple adverse drug reactions
17. A non-responder or history of intolerance to memantine after treatment at adequate doses, as determined by the clinician
18. Investigator and his/her immediate family, defined as the Investigator's spouse, parent, child, grandparent, or grandchild.
B: Inclusion Criteria:

* Person with a major mental disorder needs acute intramuscular sedation because of disturbed and dangerous behavior as decided by the attending physician.

Exclusion Criteria:

* The clinician believes that one of the two treatments represents an additional risk for the patient and/or
* Patients who lack capacity to give informed consent and who do not have a relative to obtain consent.
C: Inclusion Criteria

* Autism based on DSM-IV criteria
* IQ \> 35
* Medically fit for the study in the judgment of the study officials

Exclusion Criteria

* Prior administration of secretin
* Acute or chronic pancreatitis
* Use of anticholinergics within 72 hours of study entry or anticipated need for anticholinergics during study
* Allergies to pork products
* Use of investigational drug within 1 month of study entry
* Change in any medication or other therapeutic modality being used to treat any neurodevelopmental or gastrointestinal symptoms of the underlying autism disorder within 1 month of study entry
* Any medical condition which, in the judgment of the investigator, would make the patient unable to safely participate in the study or comply with all study procedures
* Any medical diagnosis which could account for autistic spectrum disorder (i.e., Rett syndrome, Fragile X, tuberous sclerosis, disintegrative disorder, epilepsy, Landau Kleffner, other mental retardation syndromes, or history of severe motor delays or current sensory or motor impairment such as cerebral palsy)
* Hearing or visual impairments
* Use of psychotropic medications (except for occasional symptomatic use for sleep, etc.) within 6 months of study entry
D: Inclusion Criteria:

* Meets DSM-IV, ADI-R criteria for autistic disorder.
* Age 5-17 years.
* Outpatients
* Parent or legal guardian willing to sign informed consent.

Exclusion Criteria:

* Subject has been diagnosed with a psychotic disorder (such as schizophrenia) or a mood disorder, including depression or bipolar disorder (manic depression).
* Subject has caused visible harm to him/herself.
* Subject has an active seizure disorder or epilepsy (seizures within the past year).
* Subject has an unstable medical illness, including heart disease.
* Subject has experienced brain injury.
* Subject has a history of diabetes.
* Subject reports significant improvement of autism symptoms and behaviors to current medication or other therapies.
* Subject has a history of prior treatment with Aripiprazole of 5 mg/day or higher for 6 weeks.
* Subject lives in a far away area and/or does not have regular access to transportation to the clinical facility.
* Subject is a pregnant female or unwilling to use acceptable contraception if sexually active.

Answer: C