Teva Pharmaceutical announced today the commercial launch of ADASUVE ® (loxapine) inhalation powder 10 mg, the first and only orally inhaled medicine for the acute treatment of agitation associated with schizophrenia or bipolar I disorder in adults.
ADASUVE ® is administered through Alexza Pharmaceuticals' innovative proprietary Staccato ® single-use, hand held drug delivery technology system. This new drug-device combination product provides rapid systemic delivery by inhalation of a thermally-generated aerosol of loxapine, a first generation antipsychotic, to the lung. Administration of ADASUVE ® results in rapid absorption of loxapine, with a maximum plasma concentration achieved in approximately 2 minutes.
Efficacy was demonstrated in two clinical trials in acute agitation: one in schizophrenia and one in bipolar I disorder. Patients receiving ADASUVE ® experienced a statistically significant reduction in agitation at two hours, with an effect seen as early as ten minutes post-dose.
Due to the risk of bronchospasm that has the potential to lead to respiratory distress and respiratory arrest, ADASUVE ® is contraindicated in patients with a current diagnosis or history of asthma, chronic obstructive pulmonary disease (COPD), or other pulmonary disease associated with bronchospasm and is only available through a restricted program called the ADASUVE ® Risk Evaluation and Mitigation Strategy (REMS). ADASUVE ® must be administered only in a REMS-enrolled healthcare facility that has immediate access on-site to equipment and personnel trained to manage acute bronchospasm, including advanced airway management (intubation and mechanical ventilation).
“Existing treatment options for patients with agitation associated with schizophrenia or bipolar I disorder are limited to oral tablets or injectable modes of administration, sometimes requiring the use of restraints,” said Richard Jaffe, M.D., Medical Director for Research and Clinical Trials at the Belmont Center for Comprehensive Treatment Philadelphia, Pennsylvania, and a clinical trial investigator. “ADASUVE ® is a drug-device combination that offers health care providers a new option to help manage agitation.”
Patients experiencing agitation associated with schizophrenia or bipolar I disorder often manifest behaviors that interfere with their care, such as threatening behaviors, escalating or urgently distressing behavior or self-exhausting behavior that lead clinicians to use rapidly absorbed antipsychotic medications to help control the agitation quickly. Agitation associated with schizophrenia and bipolar I disorder is estimated to result in approximately 7 million episodes that end up in an acute emergency treatment setting each year. Acute agitation can increase in severity and escalate unpredictably.
“The availability of orally inhaled ADASUVE ® provides a rapid onset of action that quickly improves symptoms for patients and gives providers in enrolled hospitals another treatment choice,” said Michael McHugh, Vice President and General Manager, Teva Select Brands and Teva Women’s Health. “As part of our ongoing commitment to enhancing patient care and bringing new therapies and delivery systems to the market that fit within our areas of expertise, Teva is pleased to launch this new treatment choice that is aligned with Teva’s New Therapeutic Entities (NTE) program.”
Two phase three short-term clinical efficacy trials demonstrated significant improvement in agitation at two hours, in patients with schizophrenia or bipolar I disorder treated with ADASUVE ®. These studies demonstrated a 49 percent reduction in agitation symptoms from baseline in schizophrenia patients, as compared to 33 percent in placebo, and 53 percent reduction in bipolar I patients, as compared to 27 percent in placebo. Improvement was rapidly achieved at 10 minutes post-dose with a 19 percent reduction in agitation symptoms from baseline in schizophrenia patients and a 23 percent reduction in bipolar I patients, both as compared to 10 percent in placebo.
Please see additional important safety information including boxed warnings and REMS Program information below. The most common adverse reactions (greater than at least 2% in the treated group and greater than in the placebo group) in short-term, placebo-controlled trials were dysgeusia (abnormal taste), sedation and throat irritation.
Teva licensed the U.S. commercial rights to ADASUVE ® in May 2013 from Alexza Pharmaceuticals, inventor and developer of the Staccato ® system and of ADASUVE ®. Under the terms of the license and supply agreement, Teva is responsible for all U.S. commercial and clinical activities including U.S. post-approval clinical studies. Alexza is responsible for manufacturing and supplying ADASUVE ® to Teva for commercial sales and clinical trials.