NORTH CHICAGO, Ill. - AbbVie (NYSE: ABBV) announced it will present positive data from a Phase 3 trial of cariprazine (VRAYLAR; 1.5mg/day), Study 3111-301-001, for the adjunctive treatment of major depressive disorder (MDD) in patients with an inadequate response to ongoing antidepressant therapy. The study met its primary endpoint of statistically significant improvement using the Montgomery-Asberg Depression Rating Scale (MADRS) total score in patients compared with placebo. These results will be presented (Poster Number: P7-037) on Tuesday, May 24, at the American Psychiatric Association (APA) Annual Meeting in New Orleans.

AbbVie's supplemental New Drug Application (sNDA) for cariprazine was supported by two positive registration-enabling studies, of which one was Study 3111-301-001. The sNDA is currently under review by the U.S. Food and Drug Administration (FDA) for expanded use in the adjunctive treatment of MDD with a decision expected by year-end.

'We are pleased to present these data demonstrating cariprazine's potential to have an impact on patients as an adjunctive treatment of major depressive disorder,' said Michael Gold, M.D., therapeutic area head, neuroscience development, AbbVie. 'The results from this study, along with previously reported data, served as the basis of our recent sNDA submission to the FDA and further underpin AbbVie's commitment to advancing innovative psychiatric therapies for patients in need.'

The Phase 3 study showed a statistically significant change from baseline to week six in the MADRS total score for patients treated with cariprazine at 1.5 mg/day compared with placebo (p-value = 0.0050). Patients treated with cariprazine at 3.0 mg/day demonstrated improvement in MADRS total score at week six compared to placebo but did not meet statistical significance (p-value=0.0727).

In this study, the safety data was consistent with the established safety profile of cariprazine across indications. There were no deaths in the trial, with serious adverse events (SAE) occurring in both treatment (two SAEs) and placebo (two SAEs) groups. The most common adverse events (AE) in the treatment group were akathisia and nausea (?5%).

'The Phase 3 trial results, along with previous study results, indicate that cariprazine may have the potential to help patients with MDD for whom antidepressant therapy alone is not sufficient,' said Gary Sachs, MD, associate clinical professor of psychiatry at Massachusetts General Hospital and lead author of the study. 'Nearly half of patients with MDD do not experience satisfactory results from their current treatment regimen, so ongoing research to bring more options to patients is critical.'

Cariprazine is marketed as VRAYLAR in the United States and is FDA-approved to treat adults with depressive, acute manic and mixed episodes associated with bipolar I disorder, as well as schizophrenia. Cariprazine is being co-developed by AbbVie and Gedeon Richter Plc. More than 8,000 patients worldwide have been treated with cariprazine across more than 20 clinical trials evaluating the efficacy and safety of cariprazine for a broad range of psychiatric disorders.

About Major Depressive Disorder (MDD)

MDD is one of the most common mental disorders in the United States. In 2020, an estimated 21 million adults had at least one major depressive episode. For some individuals, MDD can result in severe impairment which may interfere with or limit one's daily activities.1 The World Health Organization lists depression as the third-leading cause of disability worldwide and as a major contributor to the overall global burden of disease. Symptoms can include depressed mood, loss of pleasure or interest in activities, changes in appetite or weight, changes in sleep, psychomotor retardation, loss of energy, feelings of worthlessness, indecisiveness, and recurrent thoughts of death.2 In the United States, the economic burden of MDD has been estimated to be around $326 billion.3

About Study 3111-301-001

Study 3111-301-001 is a randomized, double-blind, placebo-controlled, multicenter trial with 751 participants conducted in United States, Bulgaria, Estonia, Germany, Hungary, Ukraine and the United Kingdom. Following a screening period of up to 14 days, patients with an inadequate clinical response to their antidepressant monotherapy (ADT) were randomized into three treatment groups (1:1:1). The first group received cariprazine 1.5 mg/day + ADT, the second group received cariprazine 3.0 mg/day + ADT, and the third group received placebo + ADT. For six weeks, the medication was given once daily in addition to the ongoing ADT treatment.

The primary endpoint was determined using the MADRS total score, a 10-item, clinician-rated scale that evaluates the patient's depressive symptomatology during the past week. Patients are rated on items assessing feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty in concentration, and lack of interest. Each item is scored on a 7-point scale with a score of 0 reflecting no symptoms and a score of 6 reflecting symptoms of maximum severity.4

More information can be found on www.clinicaltrials.gov (NCT03738215).

About VRAYLAR (cariprazine)

VRAYLAR is an oral, once-daily atypical antipsychotic approved for the treatment of depressive episodes associated with bipolar I disorder (bipolar depression) in adults (1.5 or 3 mg/day) and for the acute treatment of adults with manic or mixed episodes associated with bipolar I disorder (3 to 6 mg/day). VRAYLAR is also approved for the treatment of schizophrenia in adults (1.5 to 6 mg/day). Use of VRAYLAR in adjunctive treatment of major depressive disorder is not approved and its safety and efficacy have not been evaluated by regulatory authorities.

While the mechanism of action of VRAYLAR is unknown, the efficacy of VRAYLAR could be mediated through a combination of partial agonist activity at central dopamine D? and serotonin 5-HT1A receptors and antagonist activity at serotonin 5-HT2A receptors. Pharmacodynamic studies with VRAYLAR have shown that it may act as a partial agonist with high binding affinity at dopamine D3, dopamine D2, and serotonin 5-HT1A receptors. VRAYLAR demonstrated up to ~8-fold greater in vitro affinity for dopamine D3 vs D2 receptors. VRAYLAR also acts as an antagonist at serotonin 5-HT2B and 5-HT2A receptors with high and moderate binding affinity, respectively as well as it binds to the histamine H1 receptors. VRAYLAR shows lower binding affinity to the serotonin 5-HT2C and ?1A- adrenergic receptors and has no appreciable affinity for cholinergic muscarinic receptors.5 The clinical significance of these in vitro data is unknown.

VRAYLAR is being developed jointly by AbbVie and Gedeon Richter Plc, with AbbVie responsible for commercialization in the U.S., Canada, Japan, Taiwan and certain Latin American countries (including Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Mexico, Peru and Venezuela).

About AbbVie in Mental Health

AbbVie is driving the pursuit of better mental health. Over the last 30 years, the company's scientists and clinicians have worked to tackle the complexity of mental illness and today offer a portfolio of medicines and a pipeline of innovation that spans depression, anxiety, bipolar I disorder, and schizophrenia. To learn more about AbbVie's work to support individuals throughout their mental health journey, please visit www.abbvie.com or follow @abbvie on Twitter, Facebook, Instagram, YouTube and LinkedIn.

About AbbVie

AbbVie's mission is to discover and deliver innovative medicines that solve serious health issues today and address the medical challenges of tomorrow. We strive to have a remarkable impact on people's lives across several key therapeutic areas: immunology, oncology, neuroscience, eye care, virology, women's health and gastroenterology, in addition to products and services across our Allergan Aesthetics portfolio. For more information about AbbVie, please visit us at www.abbvie.com. Follow @abbvie on Twitter, Facebook, Instagram, YouTube and LinkedIn.

Forward-Looking Statements

Some statements in this news release are, or may be considered, forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995. The words 'believe,' 'expect,' 'anticipate,' 'project' and similar expressions, among others, generally identify forward-looking statements. AbbVie cautions that these forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially from those indicated in the forward-looking statements. Such risks and uncertainties include, but are not limited to, failure to realize the expected benefits from AbbVie's acquisition of Allergan plc ('Allergan'), failure to promptly and effectively integrate Allergan's businesses, competition from other products, challenges to intellectual property, difficulties inherent in the research and development process, adverse litigation or government action, changes to laws and regulations applicable to our industry and the impact of public health outbreaks, epidemics or pandemics, such as COVID-19. Additional information about the economic, competitive, governmental, technological and other factors that may affect AbbVie's operations is set forth in Item 1A, 'Risk Factors,' of AbbVie's 2021 Annual Report on Form 10-K, which has been filed with the Securities and Exchange Commission, as updated by its subsequent Quarterly Reports on Form 10-Q. AbbVie undertakes no obligation to release publicly any revisions to forward-looking statements as a result of subsequent events or developments, except as required by law.

Contact:

Global Media

Mabel Martinez

T: +1 (224) 306-4412

E: mabel.martinez@abbvie.com

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