Testing Medicines

Testing New Medicines

We will test medicines to see if they can help autistic people who want them

The process of fully testing a medicine to ensure that is effective and safe is called a clinical trial. We aim to run two clinical trials. The first will test the medicine arbaclofen, which is thought to improve social difficulties in children and adolescents with autism. If our trial is successful, arbaclofen could ultimately become the first medicine to help autistic people with social interactions. 

We will also test two medicines that might help autistic people with social interactions or repetitive behaviours. After these initial tests, we will choose the most promising medicine to be the focus of a second clinical trial. Both medicines have previously been approved for other uses and work on naturally-occurring chemicals that transmit messages in the brain, called neurotransmitters. The options are:

Our wider work aims to improve the design of clinical trials by identifying indicators (called biomarkers) of who is likely to benefit from a particular treatment. We also aim to identify economic barriers to the development of new treatments.

Beyond medicines

We recognise that while some autistic people and their families do want medicines to treat aspects of their autism or co-occurring conditions, others may prefer non-medical interventions or choose not to receive any support. There are many ways in which our work on biomarkers could inform and support the development of non-medical treatment options.


Celso Arango,
Madrid Health System

Simons Foundation Paul Wang

Paul Wang,
Simons Foundation