N9 GP (nonacog beta pegol) filed with FDA for haemophilia B - Novo Nordisk

Novo Nordisk has announced the submission to the FDA of the Biologics License Application for the approval of long-acting factor IX, N9 GP (nonacog beta pegol). Nonacog beta pegol is a glycopegylated recombinant factor IX with a significantly improved pharmacokinetic (PK) profile, developed for patients with haemophilia B.

The filing of nonacog beta pegol is based on the results from the paradigm clinical trial programme which involved 115 patients with severe or moderately severe haemophilia B. Nonacog beta pegol was found to be efficacious in routine prophylaxis, treatment of bleeding episodes and surgery for adults, adolescents and children. Furthermore, nonacog beta pegol appeared to be well-tolerated and no safety concerns were identified. Patients in the paradigm study achieved a higher level of factor IX in the circulation despite less frequent dosing of nonacog beta pegol. In the phase III trials, once-weekly administration of 40 IU/kg nonacog beta pegol maintained factor IX activity levels above 15%, reduced the median annualised bleeding rate to 1.0 and showed a potential to prevent bleeds in target joints. Furthermore, these patients reported a significant improvement in quality of life during the trial.

Comment: the drug was filed in the EU in January 2016. Compared to standard factor IX products, nonacog beta pegol has a five times longer half-life.