Please assess the completion status of the following clinical trial:

Trial Title: Pain in Adults With Autism Spectrum Disorder

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Non-specific inclusion criteria:~* intellectual quotient \>85~* consent form signed~Inclusion Criteria autism group :~* autism diagnosis (CIM 10) from multidisciplinary evaluation (ADI-r, ADOS)~* sibling without autism or developmental disorder~Non-specific Exclusion Criteria:~* chronic pain~* pregnancy, breast feeding~* consent form no signed~Exclusion criteria sibling and witness groups:~- diagnosis of autism or developmental disorder

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- high functioning Autism (Type: EXPERIMENTAL): Thermal stimulation with test thermode Thermic stimulations (tonic heat pain stimulation and cold-pressor test) are used to test excitatory and inhibitory pain mechanisms with high functioning Autism
- witness (Type: PLACEBO_COMPARATOR): Thermic stimulations (tonic heat pain stimulation and cold-pressor test) are used to test excitatory and inhibitory pain mechanisms with a witness

Based on this trial design, predict the completion outcome and termination type (if applicable).