We focus our research and development efforts on modulation of GABA and NMDA receptors, two critical neurotransmitter systems that have responsibility for information flow within the intricate circuits of the brain and central nervous system. Both GABA and NMDA systems contribute significantly to regulating CNS function. However, dysfunction in these two systems is known to be at the core of numerous psychiatric disorders. Navigating these complex circuits is a challenge, but a welcome opportunity for the teams at Sage as we seek to provide new treatments for patients.
We are using our unique development approach to systemically evaluate our drug candidates in a range of psychiatric disorders:
Postpartum depression (PPD) is one of the most common medical complications during and after pregnancy.1-7 During pregnancy, levels of certain hormones rise and then rapidly fall after giving birth. These hormone shifts may put some women at risk for developing this serious disorder.
Postpartum depression can have devastating consequences for a woman and for her family, which may include significant functional impairment, depressed mood and/or loss of interest in her newborn, and associated symptoms of depression such as loss of appetite, difficulty sleeping, worry or feeling overly anxious, motor challenges, lack of concentration, loss of energy and poor self-esteem.
Sage’s lead product is approved by the US FDA for the treatment of postpartum depression. We are also developing another product candidate, SAGE-217, in the treatment of postpartum depression as part of a broader depression program.
Major depressive disorder is a common but serious mood disorder, often affecting how a person feels, thinks, and handles daily activities. Generally thought of as a chronic condition, it’s characterized by episodes of depressed mood, feelings of hopelessness, anxiety, loss of energy and sleeping difficulties. Major depressive disorder can be life-threatening. Approximately 16 million people in the U.S. suffer from major depression each year.8
While antidepressants are widely used for treatment, results from large scale studies suggest the need for additional treatment options.9,10 GABA modulation is being studied as a new possible mechanism of action for treating episodic depression.11-13 We are evaluating SAGE-217, an oral compound, as a potential therapy for this disorder.
Bipolar disorder is a chronic, episodic illness characterized by both manic and depressive episodes. It is associated with significant disability worldwide, as well as increased risk for other mental health disorders. Diagnosis can be difficult—most patients seek medical attention in the depressed phase of illness, making it challenging to distinguish from major depressive disorder. Bipolar depressive episodes are severely debilitating, yet there are currently few treatment options. We are evaluating SAGE-217 as a potential therapy for bipolar disorder.
- Ko JY et al. MMWR Morb Mortal Wkly Rep. 2017;66:153-158.
- Hamilton BE et al; National Center for Health Statistics. Births: Provisional data for 2018. Vital Statistics Rapid Release; no 7. https://www.cdc.gov/nchs/data/vsrr/vsrr-007-508.pdf. Published May 2019. Accessed July 9, 2019.
- DeSisto CL et al. Prev Chronic Dis. 2014;11:E10.
- Centers for Disease Control and Prevention. https://www.cdc.gov/reproductivehealth/maternalinfanthealth/diabetes-during-pregnancy.htm. Updated June 12, 2018. Accessed July 9, 2019.
- Centers for Disease Control and Prevention. https://www.cdc.gov/reproductivehealth/maternalinfanthealth/pregnancy-complications-data.htm. Updated February 28, 2019. Accessed July 15, 2019.
- Roberts JM et al; American College of Obstetricians and Gynecologists Task Force on Hypertension in Pregnancy. https://www.acog.org/~/media/Task%20Force%20and%20Work%20Group%20Reports/public/HypertensioninPregnancy.pdf. Published 2013. Accessed July 9, 2019.
- Callaghan WM et al. Am J Obstet Gynecol. 2010;202(4):353.e1-6.
- Nat. Inst. of Mental Health website, 2015; Available at https://www.nimh.nih.gov/health/statistics/prevalence/major-depression-among-adults.shtml.
- Trivedi MH, et al., Am J Psychiatry, 2006,163:1, 28-40
- Rush AJ et al., Am J. Psychiatry, 2006,163:11, 1905-1917
- Uzunova et al., PNAS, 1998
- Luscher et al, Molecular Psychiatry, 2011
- Schule et al, Progress in Neurobiology, 2014