Hi there, we see you're using OS, why not try our app?

Clinical trial submission

What is a Clinical Trial Authorisation?

In the United Kingdom, a Clinical Trial Authorisation (CTA) from the Medicine and Healthcare products Regulatory Agency (MHRA) is necessary for a clinical trial of an Investigational Medicinal Product (IMP). IMPs are substances used for clinical trials, and include placebos and controls, as well as active drugs.

They are characteristically products that are to be used to prevent or treat disease, make a diagnosis or modify a particular physiological function.

A scientist using a microscope

We can support you with your application

  • We offer expert advice to help you identify whether your product classifies as an IMP, and to support you through Clinical Trial Authorisation process.
  • We can advise on relevant legislation, liaise with relevant regulatory bodies on your behalf, support the completion of CTA documentation including Application Form, Investigators Brochure (IB) and the IMP Dossier (IMPD).

Before starting on the extensive CTA process, it is useful to identify whether your product is indeed an IMP. We can assist with this classification, and support your team in understanding applicable EU legislation.

Every CTA application will contain standard documents, including:

  • Clinical trial application forms in PDF and XML
  • Protocol documents
  • Investigators brochure (IB)
  • Investigational medicinal product dossier (IMPD)

For more detailed information on how to prepare and submit documentation for clinical trials approvals, visit the MHRA website, or contact a member of our team.

A scientist using a computer

Can't find what you're looking for?

Speak to a member of our expert team about our bespoke service

Get in touch

Call us on:

01934 880 150

07471 147 804

Email us at:


You may also be interested in