A Study To Assess Adverse Events and Change in Disease Activity With Oral Cariprazine When Added to Antidepressant Therapies (ADTs) Compared to Placebo in Adult Participants With Generalized Anxiety Disorder (GAD) Who Have Had an Inadequate Response to ADTs Alone (CAR aGAD Ph 2)
Generalized Anxiety Disorder

About this trial
This is an interventional treatment trial for Generalized Anxiety Disorder focused on measuring Generalized Anxiety Disorder (GAD), Cariprazine, Vraylar, Depression, Antidepressant therapy
Eligibility Criteria
Inclusion Criteria:
- Participants with generalized anxiety disorder (GAD).
- Taking one of the FDA-approved antidepressant therapies (ADTs) for the treatment of GAD (i.e., escitalopram, paroxetine, duloxetine, and venlafaxine XR).
- Continuing to exhibit anxiety symptoms (Hamilton Anxiety Scale [HAM-A] total score >= 22) at Visit 1 (Screening) and Visit 2 (Baseline, Week 0) despite being on an adequate dose and duration (at least 6 weeks of continuous use, with a minimum of 3 of 6 weeks above the minimum labeled dose for GAD).
- Documentation of inadequate response to at least 1 ADT must be confirmed on the GAD-Antidepressant Treatment Response Questionnaire (GAD-ATRQ).
- Must have a minimum score of 22 on the rater-administrated HAM-A and a minimum score of 4 on the rater-administered Clinical Global Impression of Severity Scale (CGI-S), at both Visit 1 (Screening) and Visit 2 (Baseline, Week 0).
- A score of less than 12 on the rater-administered Hamilton Depression Rating Scale-17-item (HAMD-17) at Visit 1 (Screening) and Visit 2 (Baseline, Week 0).
- Laboratory values must meet the criteria specified in the protocol within the screening period prior to the first dose of study drug.
Exclusion Criteria:
- Psychiatric comorbidities, risk of suicide, self-injury, and/or harm to others; any current Diagnostic and Statistical Manual of Mental Disorders - 5th edition (DSM-5) psychiatric diagnosis other than generalized anxiety disorder (GAD) (other than specific phobias) or history of alcohol or any other substance-related disorders within the 6 months before Visit 1 (Screening).
- Pregnancy, current breastfeeding status, plans to become pregnant or to donate eggs during the study or for approximately 30 days after the last dose of investigational product (female participants).
- History of an allergic reaction, hypersensitivity, or intolerance to constituents of cariprazine (and its excipients) and/or other products of the same class or to any of the protocol-approved rescue medications.
- Any clinically relevant or significant electrocardiogram (ECG) abnormalities, including ECG with QT interval corrected for heart rate (QTc) using Fridericia's formula (QTcF) >450 msec (males) or >470 msec (females).
- History of seizure disorder, with the exception of febrile seizure, stroke, significant head injury, tumor of the central nervous system, or any other condition that predisposes to seizure.
- Specific medical conditions precluding study drug use and/or study participation, such as history of neuroleptic malignant syndrome; cataracts or retinal detachment; allergic reactions/hypersensitivity to cariprazine and/or protocol-approved rescue medications; pregnancy per above; cardiovascular disease; seizure history; and any other disease that is clinically unstable or would make the participant an unsuitable candidate to participate in the study, based on the investigator's judgment.
Sites / Locations
- Preferred Research Partners /ID# 232286
- Axiom Research /ID# 230728
- ATP Clinical Research, Inc /ID# 230445
- ProScience Research Group /ID# 231520
- WR-PRI, LLC - Encino /ID# 230434
- Synergy San Diego /ID# 231006
- Pharmacology Research Institute - Wake LLC /ID# 230722
- Pharmacology Research Inst /ID# 230869
- Anderson Clinical Research /ID# 230440
- California Neuroscience Research Medical Group, Inc. /ID# 230453
- Viking Clinical Research /ID# 230379
- Pacific Clinical Research Management Group /ID# 229725
- Galiz Research - Palmetto Medical Plaza /ID# 230446
- Great Lakes Clinical Trials /ID# 231296
- Baber Research Group /ID# 230447
- Boston Clinical Trials /ID# 231003
- ActivMed Practices and Research, LLC. /ID# 230441
- Alivation Research /ID# 230449
- Center for Emotional Fitness /ID# 230450
- Hassman Research Institute Marlton /ID# 233252
- Integrative Clinical Trials /ID# 230955
- SPRI Clinical Trails /ID# 230957
- Fieve Clinical Research, Inc. /ID# 230452
- Clinilabs, Inc. /ID# 230958
- Manhattan Behavioral Medicine PLLC /ID# 229713
- Carolina Institute for Clinical Research - Fayetteville /ID# 230961
- Ohio State Harding Hospital /ID# 231302
- CincyScience /ID# 229719
- Sooner Clinical Research /ID# 229731
- Research Strategies of Memphis /ID# 230443
- Clinical Neuroscience Solutions - Memphis /ID# 230734
- Austin Clinical Trial Partners /ID# 229727
- FutureSearch Trials of Dallas, LP /ID# 230535
- Earle Research /ID# 230969
- Grayline Research Center /ID# 230455
- Woodstock Research Center /ID# 231005
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Placebo Comparator
Cariprazine 0.75 mg/day + Antidepressant Therapy
Cariprazine 1.5 mg/day + Antidepressant Therapy
Cariprazine 3.0 mg/day + Antidepressant Therapy
Placebo + Antidepressant Therapy
Antidepressant (paroxetine, escitalopram, venlafaxine XR, or duloxetine) + cariprazine 0.75 mg/day oral, once daily for 6 weeks
Antidepressant (paroxetine, escitalopram, venlafaxine XR, or duloxetine) + cariprazine 1.5 mg/day oral, once daily for 6 weeks
Antidepressant (paroxetine, escitalopram, venlafaxine XR, or duloxetine) + cariprazine 1.5 mg/day oral for 2 weeks followed by cariprazine 3.0 mg/day oral, once daily for 4 weeks.
Antidepressant (paroxetine, escitalopram, venlafaxine XR, or duloxetine) + oral placebo, once daily for 6 weeks