EMA accepts Otsuka's marketing authorisation application for tolvaptan for treatment of ADPKD

Otsuka Pharmaceutical Co., Ltd. announced today that the European Medicines Agency (EMA) has accepted the submission of a marketing authorisation application (MAA) for the potential approval of tolvaptan for the treatment of autosomal dominant polycystic kidney disease (ADPKD). Phase III clinical trial results that form the basis of the regulatory filing were published in the New England Journal of Medicine.

"Otsuka is delighted that the EMA will review the tolvaptan MAA for the treatment of ADPKD, based on compelling data from our pivotal three-year Phase III clinical trial," said Ole Vahlgren, CEO & President, Otsuka Europe. "If approved, tolvaptan will represent a breakthrough for patients with a disease for which there are currently no licensed treatments."

Tolvaptan is a selective V2 vasopressin receptor antagonist that has been hypothesised to slow the progression of ADPKD by reducing the development and growth of kidney cysts.

ADPKD is a hereditary genetic disease characterised by the development of multiple, non-malignant cysts in the kidneys due to inherited or acquired genetic mutation(s). Cyst growth and expansion in both kidneys leads to slow deterioration of kidney function, and in approximately 50% of patients, to end-stage renal disease (ESRD) and renal failure.v ADPKD typically results in symptom manifestations (e.g. hypertension and kidney pain) in adulthood.v Half of all ADPKD patients will require dialysis or transplantation by the age of 60 and people with ADPKD account for up to 1 in 10 people on maintenance dialysis. The condition is estimated to affect approximately 200,000 people in Europe.

The Committee for Medicinal Products for Human Use (CHMP), a committee within the EMA, is responsible for evaluating the application and will provide a recommendation on whether tolvaptan should receive marketing authorisation. The CHMP may request further information from the applicant before adopting an opinion. If the committee's opinion is positive, it is forwarded to the European Commission to make the final decision.

In August 2013, the EMA's Committee for Orphan Medicinal Products (COMP) granted tolvaptan orphan drug designation for the treatment of ADPKD.ii To qualify for orphan designation, the prevalence of the condition in the EU must not be more than 5 in 10,000. In addition, the new medicine must be of significant additional benefit to those affected by the condition, and no satisfactory method of diagnosis, prevention or treatment of the condition must exist.

In Japan, the application for ADPKD is currently under review. In the United States, Otsuka and FDA have been working together to determine the most appropriate path forward to allow tolvaptan to be available for patients suffering from ADPKD.


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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