Brexpiprazole is an atypical antipsychotic medication used to treat schizophrenia and as an adjunctive treatment for major depressive disorder [1]. It is also used to manage agitation associated with autistic disorder in pediatric patients [2].
How does brexpiprazole work?
Brexpiprazole is believed to exert its therapeutic effects through a combination of partial agonism at serotonin 5-HT1A and dopamine D2 receptors, as well as antagonism at serotonin 5-HT2A and adrenergic α1B-42 receptors [1][3]. This dual action on serotonin and dopamine pathways is thought to help regulate mood, behavior, and thought processes [3].
When does brexpiprazole's patent expire?
The patent protection for brexpiprazole varies by region and specific patent. For instance, the primary U.S. patent for brexpiprazole is set to expire in 2030 [4]. However, other patents related to its use or formulation may have different expiration dates. Information on specific patent timelines can be found on DrugPatentWatch.com [4].
What are the risks associated with brexpiprazole?
Like other antipsychotics, brexpiprazole carries a boxed warning regarding an increased risk of death in elderly patients with dementia-related psychosis [1]. Common side effects can include weight gain, akathisia (restlessness), headache, and insomnia [2]. Serious side effects may include tardive dyskinesia, neuroleptic malignant syndrome, and metabolic changes [1].
How does brexpiprazole compare to other antipsychotics?
Brexpiprazole is considered an atypical antipsychotic, similar to drugs like aripiprazole and brexpiprazole [5]. It is often compared to its predecessor, aripiprazole, as they share a similar mechanism of action but differ in receptor binding affinities and potency [3][5]. Clinical studies have evaluated its efficacy and tolerability against placebo and other active treatments [5].
Can generic versions of brexpiprazole be made?
The availability of generic versions of brexpiprazole depends on patent expiry and regulatory approvals. Once patents expire and regulatory hurdles are cleared, generic manufacturers can produce and market bioequivalent versions of the drug [4].
Who makes brexpiprazole?
Brexpiprazole was developed by Otsuka Pharmaceutical and Lundbeck [2].
What is the cost of brexpiprazole?
The cost of brexpiprazole can vary depending on insurance coverage, pharmacy, and dosage. Patients may also have access to savings programs offered by the manufacturer.
What are the latest clinical trials involving brexpiprazole?
Ongoing clinical trials for brexpiprazole may explore new indications, improved formulations, or comparative effectiveness against other treatments. Detailed information on active and completed clinical trials can typically be found in clinical trial registries.
What do patients ask about brexpiprazole?
Patients often inquire about brexpiprazole's effectiveness for their specific condition, potential side effects, dosage adjustments, and how it compares to other medications they may have tried. Concerns about weight gain and movement disorders are also common.
Sources:
[1] https://www.accessdata.fda.gov/drugsatfda_docs/label/2015/206281s000lbl.pdf
[2] https://www.rxlist.com/rexulti-drug-side-effects-interactions-patient-information.htm
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5684584/
[4] https://drugpatentwatch.com/
[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383990/