CAT: Working parties and other groups

The Committee for Advanced Therapies (CAT) consults its working parties and other groups on scientific issues relating to their particular field of expertise, and delegates certain tasks to them associated with the scientific evaluation of applications or drafting and revision of scientific guidance documents.

Updated on 6 October 2025:
- to reflect the current structure of working parties and other groups under CAT

Working parties and groups within domains

The majority of working parties and related groups operate under the governance of a domain. 

For more information, see:

• CHMP: Working parties and other groups.

The Inter-Committee Scientific Advisory Group on Oncology is currently the only scientific advisory group under CAT. It operates as an operational expert group within the clinical domain.

For more information, see:

• Inter-Committee Scientific Advisory Group on Oncology

Other working parties and associated groups

The following working parties can be consulted to provide advice to EMA and its human scientific committees, including CAT, on all matters of interest in relation to medicines:

• Healthcare Professionals' Working Party
• Patients' and Consumers' Working Party

The European Medicines Agency / CAT and Medical Devices' Notified Body Collaboration Group is currently the only CAT associated group:

• European Medicines Agency / CAT and Medical Devices' Notified Body Collaboration Group

Drafting groups

CAT sets up ad-hoc drafting groups as needed to develop specific guidance documents.

Each drafting group is composed of experts drawn from:

• CAT members
• European expert list