In February 2019, the UK Medicines and Healthcare products Regulatory Agency (MHRA) responded to Thornton & Ross’s marketing authorisation application filed in July 2018, raising a number of questions requiring additional laboratory work specifically around the permeation characteristics of TPR100 to be conducted. Ongoing laboratory work continues with formulation dosing adjustment and in vitro studies to enable TPR100 to meet the strict criteria established by the MHRA (to avoid the need to conduct a Phase 3 pain relief efficacy study) delaying the response to the MHRA by at least six months.
Our transdermal technology DermaSys® is tailored for each product to suit the specific therapeutic indication and desired speed of onset and duration of action offering improvements over existing products creating novel indications with compelling commercial potential. This means that our products are highly differentiated in their markets whilst avoiding the risks normally associated with the development of new molecules.
The rapid skin permeation rate offered by our transdermal delivery system, DermaSys®, is ideally suited for targeted topical pain relief. Rapid, targeted and effective skin permeation offers potential benefits in pain management including: improved onset of action, duration and degree of pain relief.
TPR100 does not require a combination of volatile solvent components to stimulate nerve sensors. It is designed to provide a sustained mode of action suitable for the treatment of pain and is formulated with this objective in mind.
TPR100's current patent protection runs until February 2028 in the USA and Europe.