A Study to Evaluate ABT-126 for the Treatment of Cognitive Deficits in Schizophrenia
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ClinicalTrials.gov Identifier: NCT01655680 |
Recruitment Status :
Completed
First Posted : August 2, 2012
Last Update Posted : July 7, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Schizophrenia | Drug: ABT-126 Drug: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 432 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Care Provider, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-Blind, Placebo-Controlled, Dose-Ranging, Parallel-Group, Phase 2 Study of the Safety and Efficacy of ABT-126 in the Treatment of Cognitive Deficits in Schizophrenia (CDS) in Nonsmokers |
Study Start Date : | May 2012 |
Actual Primary Completion Date : | April 2014 |
Actual Study Completion Date : | July 2014 |

Arm | Intervention/treatment |
---|---|
Experimental: ABT-126 Low Dose
ABT-126 Low Dose
|
Drug: ABT-126
ABT-126 Low Dose |
Experimental: ABT-126 Middle Dose
ABT-126 Middle Dose
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Drug: ABT-126
ABT-126 Middle Dose |
Experimental: ABT-126 High Dose
ABT-126 High Dose
|
Drug: ABT-126
ABT-126 High Dose |
Placebo Comparator: Placebo
Placebo
|
Drug: Placebo
Placebo |
- Cognition: MCCB (MATRICS Consensus Cognitive Battery) [ Time Frame: Change from baseline to week 24 ]Rater based interview
- Functioning: UPSA-2 (University of California San Diego Performance-based Skills Assessment-2) [ Time Frame: Measurements from screening period up through week 24 ]Rater based interview
- Symptom Severity: PANSS (Positive and Negative Symptom Scale) [ Time Frame: Measurements from screening period up through week 24 ]Rater based interview
- Symptom Severity: NSA-16 (16-item version of the Negative Symptom Assessment Scale) [ Time Frame: Measurements from screening period up through week 24 ]Rater based interview

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Ages Eligible for Study: | 20 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Has a current Diagnostic and Statistical Manual of Mental Disorders-, 4th Edition, Text Revision (DSM-IV-TR) diagnosis of schizophrenia confirmed by the Mini-International Neuropsychiatric Interview (M.I.N.I.).
- Is clinically stable while receiving a regimen of one or two allowable antipsychotic medications: lack of hospitalizations in 4 months prior to initial screening visit; taking the same antipsychotic medication(s) for at least 8 weeks prior to baseline visit; core positive symptoms of Positive and Negative Syndrome Scale (PANSS) no worse than moderate in severity throughout screening period of at least 4 weeks.
- Has been diagnosed with or treated for schizophrenia for at least 2 years prior to initial screening visit.
- Has had continuity in psychiatric care (e.g., mental health system, clinic or physician) for at least 6 months prior to initial screening visit.
- Has an identified contact person (e.g., family member, social worker, case worker, or nurse) that can provide support to the subject to ensure compliance with protocol requirements.
Exclusion Criteria:
- In the Investigator's judgment, has a current or past diagnosis of schizoaffective disorder, bipolar disorder, manic episode, dementia, post traumatic stress disorder, or obsessive-compulsive disorder, or the subject has a current major depressive episode.
- Has a positive urine drug screen for cocaine, phencyclidine (PCP), opiates (unless duly prescribed), benzodiazepines (unless duly prescribed), marijuana, or amphetamines during the Screening Period.
- Has a current or past history of seizures, with the exception of a single febrile seizure occurring prior to 6 years of age.
- Has a clinically significant abnormal electrocardiogram (ECG) at Screening Visit 1 as determined by the Investigator.
- Has any risk factors for Torsades de Pointes (TdP)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01655680

Study Director: | George Haig, PharmD | AbbVie |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | AbbVie (prior sponsor, Abbott) |
ClinicalTrials.gov Identifier: | NCT01655680 |
Other Study ID Numbers: |
M10-855 2012-000418-13 ( EudraCT Number ) |
First Posted: | August 2, 2012 Key Record Dates |
Last Update Posted: | July 7, 2021 |
Last Verified: | July 2021 |
Schizophrenia |
Schizophrenia Cognition Disorders Cognitive Dysfunction |
Schizophrenia Spectrum and Other Psychotic Disorders Mental Disorders Neurocognitive Disorders |