|FDA Approves Hyperion's RAVICITI; Seattle Genetics' ADCETRIS Approved by Health Canada|
|By Staff and Wire Reports|
|Friday, 01 February 2013 20:00|
Hyperion Therapeutics, Inc. (Nasdaq: HPTX) announced the U.S. FDA has approved RAVICTI for the treatment of Urea Cycle Disorders (UCD) in patients two years of age and older. The drug is expected to be commercially available by the end of April 2013.
Separately, Hyperion announced it has received notification from the U.S. Patent & Trademark Office (USPTO) of the allowance of the claims of patent application number 13/417,137 entitled, METHODS OF THERAPEUTIC MONITORING OF NITROGEN SCAVENGING DRUGS, which discloses optimal measurement timing and target levels for blood ammonia in UCD patients. A Notice of Allowance is issued after the USPTO makes a determination that a patent can be granted from an application. The issued patent would have a term that expires in March 2032. After issuance, Hyperion plans to list this patent in FDA's Approved Drug Products with Therapeutic Equivalence, or Orange Book.
"With FDA approval of RAVICTI, we are now in a position to commercialize Hyperion's first product. Furthermore we believe that the allowed claims, once issued, will provide important protection for the use of RAVICTI to treat UCD," said Donald J. Santel, Hyperion's chief executive officer. "We thank our clinical trial patients, their families, our investigators and study coordinators, the UCD Consortium, and the National Urea Cycle Disorders Foundation – in particular NUCDF Executive Director Cynthia Le Mons – for their collaboration and support of our development efforts."
The FDA approval of RAVICTI was based on a New Drug Application (NDA) that included data from 10 clinical trials, including six in UCD patients, that involved 23 sites, over 50 investigators and sub-investigators, and approximately a dozen referring metabolic specialists throughout North America. As part of FDA approval, Hyperion agreed to post-marketing requirements that include: studies of RAVICTI safety, ammonia control, and pharmacokinetics in pediatric UCD patients in the first two months of life and from two months to two years of age; studies in healthy adults to examine drug-drug interaction and whether RAVICTI metabolites are present in breast milk; a randomized controlled clinical trial to assess the safety and efficacy of RAVICTI in treatment-naïve patients with UCD; and a UCD registry of approximately 10 years duration. Importantly, the FDA did not require a Risk Evaluation and Mitigation Strategy (REMS) program.
Seattle Genetics, Inc. (Nasdaq: SGEN) announced Health Canada has issued a Notice of Compliance with conditions (NOC/c), authorizing marketing of ADCETRIS for two lymphoma indications: (1) the treatment of patients with Hodgkin lymphoma (HL) after failure of autologous stem cell transplant (ASCT) or after failure of at least two multi-agent chemotherapy regimens in patients who are not ASCT candidates, and (2) the treatment of patients with systemic anaplastic large cell lymphoma (sALCL) after failure of at least one multi-agent chemotherapy regimen. The indications for ADCETRIS were authorized based on promising response rates demonstrated in single-arm trials. No data demonstrate increased survival with ADCETRIS.
“We are focused on making ADCETRIS available globally to all eligible patients with relapsed HL and sALCL. The approval of ADCETRIS in Canada, as well as the recent approval in the European Union, are important milestones to accomplish this goal,” said Clay B. Siegall, Ph.D., President and Chief Executive Officer of Seattle Genetics. “Now that Health Canada has approved ADCETRIS, we are committed to working closely with public and private insurers to secure reimbursement coverage for patients in Canada.”
“The approval of ADCETRIS in Canada marks a significant milestone for patients with relapsed HL or sALCL who have had few new treatment options in several decades,” Joseph M. Connors, M.D., FRCPC, Clinical Director, Center for Lymphoid Cancer at BC Cancer Agency in Vancouver, Canada.
Health Canada grants NOC/c, a form of market approval, on the basis of promising evidence of clinical effectiveness, for products intended for the treatment of serious, life-threatening or severely debilitating illnesses that meet a serious unmet medical need or demonstrate a significant improvement in the benefit/risk profile over existing therapies. Conditions associated with market authorization under the NOC/c policy include a requirement that Seattle Genetics conduct clinical trials designed to confirm the anticipated clinical benefit of ADCETRIS in these patients. Two confirmatory phase III clinical trials evaluating ADCETRIS in the front-line treatment setting of HL and mature T-cell lymphoma (MTCL), including sALCL, are currently underway and enrolling patients.
ADCETRIS (brentuximab vedotin) was issued marketing authorization under the NOC/c policy based on results from a single-arm, phase II pivotal trial in HL patients with relapsed or refractory disease following an ASCT and a single-arm, phase II pivotal trial in relapsed or refractory sALCL patients. ADCETRIS is administered in hospitals through IV infusion over 30 minutes every three weeks and patients who achieve stable disease or better should receive a minimum of 8 cycles and up to a maximum of 16 cycles (approximately one year).
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