It has always been a priority for the French authorities to provide compassionate use or exceptional use access to patients suffering from serious and disabling diseases. For more than 20 years, early access was provided under a program known as Temporary Authorization for Use (ATU); however, the program has become increasingly complex over the years. In response, the two French regulatory authorities, the National Agency for the Safety of Medicines and Health Products (ANSM) and the French Agency for the Safety of Health Products (HAS), have taken steps to speed up and simplify access. The new program, which has also been developed with the support of patients' associations, also seeks to improve scientific rigor when collecting the patients data and to ensure visibility of the following criteria:
- Serious, rare, or disabling disease
- No existing treatment or adapted-use treatments
- Urgency of treatment
- Strongly presumed safety and tolerance of treatment