FDA Approval of AUSTEDO™ (deutetrabenazine) Tablets for the Treatment of Chorea Associated with Huntington’s Disease
Approval represents the first new treatment option for chorea associated with Huntington’s disease in nearly a decade
JERUSALEM–(BUSINESS WIRE)–Apr. 3, 2017– Teva Pharmaceutical Industries Ltd. (NYSE and TASE: TEVA) today announced that the U.S. Food and Drug Administration (FDA) has approved AUSTEDO™ (deutetrabenazine) tablets for the treatment of chorea associated with Huntington’s disease (HD). Previously referred to by the developmental name SD-809, AUSTEDOTM is the first deuterated product approved by the FDA and only the second product approved in HD. The product was previously granted Orphan Drug Designation by the FDA.
A rare and fatal neurodegenerative disorder, HD affects more than 35,000 people in the United States. Chorea – involuntary, random and sudden, twisting and/or writhing movements – is one of the most striking physical manifestations of this disease and occurs in approximately 90% of patients. “Chorea is a major symptom for many living with Huntington disease. It impacts patients’ functionality and activities of daily living, and there have been limited treatment options for these patients,” said Michael Hayden, M.D., Ph.D., President of Global R&D and Chief Scientific Officer at Teva. “Based on the results demonstrated in the clinical development program which supported the approval of AUSTEDO™ and our ongoing commitment to patients, we feel uniquely positioned to bring this treatment option forward.”
The FDA approval was based on results from a Phase III randomized, placebo-controlled study to assess the safety and efficacy of AUSTEDO™ in reducing chorea in patients with HD (First-HD).
“At Teva, we have a long history of establishing comprehensive disease management programs in chronic disease areas. We have highly skilled teams experienced in building relationships with patients, their care partners and healthcare professionals,” said Rob Koremans, MD, President and CEO of Global Specialty Medicines at Teva. “Bringing a new treatment forward where the unmet need is so significant is an inspiring opportunity. Our commercial and medical organizations are well prepared to make this important treatment available to the HD community.”
“Chorea associated with Huntington’s disease has a significant impact on those living with the disease and their families,” said Louise Vetter, Chief Executive Officer of the Huntington’s Disease Society of America. “The FDA’s approval of AUSTEDO™ represents an important new treatment option for people with HD and highlights the need for more therapeutic resources for this underserved patient community.”
Teva’s Shared Solutions® is a free service to provide support to patients starting or taking AUSTEDOTM at 1-800-887-8100. Resources include nursing support, disease education, and financial assistance programs. AUSTEDOTM is expected to be available in the U.S. within the next 3 weeks.
AUSTEDOTM is indicated for the treatment of chorea associated with Huntington’s disease.
The efficacy of AUSTEDOTM as a treatment for chorea associated with Huntington’s disease was established in a randomized, double-blind, placebo-controlled, multi-center trial conducted in 90 ambulatory patients with manifest chorea associated with Huntington’s disease. Total Maximal Chorea Scores for patients receiving AUSTEDOTM improved by approximately 4.4 units from baseline to the maintenance period (average of Week 9 and Week 12), compared to approximately 1.9 units in the placebo group. The treatment effect of -2.5 units was statistically significant (p<0.0001). The Maintenance Endpoint is the mean of the Total Maximal Chorea Scores for the Week 9 and Week 12 visits. At the Week 13 follow-up visit (1 week after discontinuation of the study medication), the Total Maximal Chorea Scores of patients who had received AUSTEDOTM returned to baseline.
AUSTEDOTM is also contraindicated in: patients with hepatic impairment; patients taking monoamine oxidase inhibitors (MAOIs), or within 14 days of discontinuing MAOI therapy; patients taking reserpine or within 20 days of discontinuing reserpine; and patients taking tetrabenazine (XENAZINE®).
VMAT2 inhibitors, including AUSTEDOTM, may cause a worsening in mood, cognition, rigidity, and functional capacity. Neuroleptic Malignant Syndrome has been observed in patients receiving tetrabenazine (a closely related VMAT2 inhibitor). AUSTEDOTM may increase the risk of akathisia, agitation, and restlessness and may cause parkinsonism in patients with Huntington’s disease. Sedation is a common dose-limiting adverse reaction of AUSTEDOTM.
Tetrabenazine causes an increase in the corrected QT (QTc) interval. A clinically relevant QT prolongation may occur in some patients treated with AUSTEDOTM who are CYP2D6 poor metabolizers or are co-administered a strong CYP2D6 inhibitor. Tetrabenazine elevates serum prolactin concentrations in humans.
Since deutetrabenazine or its metabolites bind to melanin-containing tissues, it could accumulate in these tissues over time. The most common adverse reactions (>8% of AUSTEDOTM-treated patients and greater than placebo) in a controlled clinical study were: somnolence, diarrhea, dry mouth, and fatigue.
Please click here for full Prescribing Information, including Boxed Warning: austedo.com/pi. A copy may be requested from the US Medical Information Contact Center for Teva Specialty Medicines at 888-4-TEVA-RX (888-483-8279) and USMedInfo@tevapharm.com or Teva’s Public Relations or Investor Relations contacts.