A Study of RG7314 to Investigate Efficacy and Safety in Individuals With Autism Spectrum Disorders (ASD)

Inclusion Criteria

• •Participants meet Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria for ASD and Tenth Revision of the International Classification of Diseases and Related Health Problems (ICD-10) criteria for Autism diagnosis
• •SRS-2 (T-score) greater than or equal to (\>/=) 66
• •CGI-S \>/=4 (moderately ill)
• •Participants have an Intelligence Quotient (IQ) \>/=70 (Wechsler Abbreviated State of Intelligence)
• •A body mass index (BMI) between 18 to 40 kilograms per square meter (kg/m\^2) inclusive
• •Language, hearing and vision compatible with the study measurements as judged by the investigator
• •Lives with (or has substantial periods of contact with) a caregiver who is willing and able to attend visits when required, oversee the participant's compliance with protocol-specified procedures and study medication dosing, and report on the participant's status via completion of study assessments. Any period of absence must be covered by another caregiver. Non-cohabitating caregiver(s) must spend sufficient time with the participant so that, in the opinion of the investigator, the caregiver(s) can reliably assess participant's mental status, activities and behavior.