Evaluating aripiprazole as a potential bipolar disorder therapy for adults

[Atypical antipsychotics in the treatment of depression in affective disorders and schizophrenia (using the aripiprazole model)]

The review discusses aspects of the use of atypical antipsychotics in the treatment of depression in affective disorders and schizophrenia using the model of aripiprazole, a partial agonist of dopamine receptors. According to numerous studies, aripiprazole is the drug of choice for augmentative therapy of major depressive disorder, as well as for relieving and long-term maintenance monotherapy and combination therapy of various affective episodes of bipolar affective disorder and depression in schizophrenia.

Conventional mood stabilizers and/or second-generation antipsychotic drugs in bipolar disorders: A population-based comparison of risk of treatment failure

BACKGROUND

The study compared treatment failure when using three therapeutic strategies in bipolar disorders: (i) mood stabilizers (MSs: lithium, valpromide, divalproate, carbamazepine, lamotrigine) without second-generation antipsychotic (SGAP); (ii) SGAPs (aripiprazole, olanzapine, risperidone, quetiapine) without MS; (iii) combination of MSs and SGAPs.

METHODS

A historical cohort study was conducted using the French national healthcare databases in 20,086 outpatients aged 21+, newly treated with one of the three treatment strategies in 2011-2012, and diagnosed with a bipolar disorder. A composite outcome was based on indicators of treatment failure identified over 12 months: treatment discontinuation, switch or addition, psychiatric hospitalisation, suicide attempt, and death. For each strategy, the cumulative incidence of treatment failure was calculated while adjusting for covariates by propensity score weighting.

RESULTS

A total of 8,225 patients (40.9%) were newly dispensed MSs, 9,342 (46.5%) SGAPs, and 2,519 (12.5%) both MSs and SGAPs. The one-year adjusted cumulative incidence of treatment failure was 75.7% (95%CI 74.9;76.3) in patients using MSs, 75.3% (74.6;76.0) in patients using SGAPs, and 60.5% (58.3;62.6) in patients with the combination. The adjusted difference in incidence for SGAPs compared with MSs was -0.40% (-1.4;0.6 p = 0.4) in the whole population, -2.2% (-3.3; -1.2 p < 0.002) in patients under 65 years and +6.7% (4.1;9.1 p < 0.002) in patients 65 years and over.

LIMITATIONS

Combinations of MSs and SGAPs could not be directly compared with MS or SGAP monotherapies.

CONCLUSIONS

One-year treatment failure was high. Overall, no difference in treatment failure was observed between MS or SGAP strategy but differences might exist depending on age.

Aripiprazole as an adjuvant treatment for obsessive and compulsive symptoms in manic phase of bipolar disorder: A randomized, double-blind, placebo-controlled clinical trial

BACKGROUND AND OBJECTIVE

Our Objective is to study the effects of aripiprazole as an adjuvant treatment for obsessive and compulsive (OC) symptoms in patients with bipolar disorder (BD) type I, manic phase.

PATIENTS AND METHODS

In this 8-week, double-blind, placebo-controlled randomized clinical trial, 56 patients with BD who had OC symptoms were randomly allocated to receive aripiprazole or placebo plus their routine medication regimen (lithium + clonazepam). Yale Brown obsessive compulsive behavior scale (YBOCS) was administered to evaluate the outcomes. Adverse effects were also registered.

RESULTS

Of 56 BD patients with OC symptoms which were randomly allocated in two groups of aripiprazole (n = 29) and placebo group (n = 27), 46 patients (23 in aripiprazole group and 23 in placebo group) completed the trial. Throughout the trial, the mean score of YBOCS in the aripiprazole group decreased from 21 ± 4.81 to 9.6 ± 2.2 (P < 0.001) and in the placebo group dropped from 20.46 ± 4.8 to 17.32 ± 3.7 (P < 0.001). At the end of the study, 21 (91.30%) patients in the aripiprazole group and 1 (4.34%) patient in the placebo group had >34% decline in YBOCS score (P < 0.01). No serious adverse effects were reported in any groups.

CONCLUSIONS

The results of our study revealed that aripiprazole can be used as an effective adjuvant agent for treatment of obsessive and compulsive symptoms in manic patients.

Dose Trends of Aripiprazole from 2004 to 2014 in Psychiatric Inpatients in Korea

Objective

Although aripiprazole has been widely used to treat various psychiatric disorders, little is known about the adequate dosage for Asian patients in clinical practice. Hence, we evaluated the initial and maximum doses of aripiprazole from 2004 to 2014 to estimate the appropriate dosage for Korean psychiatric inpatients in clinical practice.

Methods

In this retrospective study, we reviewed the medical records of patients who were hospitalized in five university hospitals in Korea from March 2004 to December 2014. The psychiatric diagnosis according to the text revision of the Diagnostic and Statistical Manual of Mental Disorders, 4th edition during index hospitalization and the initial and maximum doses of aripiprazole were evaluated.

Results

There were 74 patients in Wave 1 (2004–2006), 201 patients in Wave 2 (2007–2010), and 353 patients in Wave 3 (2011–2014). The initial doses of aripiprazole in all diagnostic groups were significantly lower in Wave 3 than in Wave 2. The maximum doses of aripiprazole in each diagnostic group were not significantly different among Waves 1, 2, and 3.

Conclusion

The relatively low initial doses of aripiprazole documented in our study may reflect a strategy by clinicians to minimize the side effects associated with aripiprazole use, such as akathisia.

Effects of switching to aripiprazole from current atypical antipsychotics on subsyndromal symptoms and tolerability in patients with bipolar disorder

We evaluated the effectiveness of aripiprazole among bipolar patients who had switched to this medication as a result of difficulty maintaining on their prestudy atypical antipsychotics (AAPs) because of subsyndromal mood symptoms or intolerance. This study included 77 bipolar patients who were in syndromal remission with an AAP as monotherapy or with an AAP combined with a mood stabilizer(s) who needed to switch from their present AAP because of subsyndromal symptoms or intolerance. At 24 weeks after switching to aripiprazole, the remission rates on the Montgomery-Åsberg Depression Rating Scale (MADRS) and on both the MADRS and the Young Mania Rating Scale were increased significantly in the full sample and in the inefficacy subgroup. In the inefficacy subgroup, the MADRS score change was significant during the 24 weeks of study. Total cholesterol and prolactin decreased significantly after switching to aripiprazole. The proportion of patients who had abnormal values for central obesity and hypercholesterolemia decreased significantly from baseline to week 24. These findings suggest that a change from the current AAP to aripiprazole was associated with improvement in subsyndromal mood symptoms and several lipid/metabolic or safety profile parameters in patients with bipolar disorder with tolerability concerns or subsyndromal mood symptoms.

A meta-analysis of efficacy and safety of aripiprazole in adult and pediatric bipolar disorder in randomized controlled trials and observational studies

BACKGROUND

Aripiprazole (ARP) has been shown to be effective in the treatment of bipolar disorder (BD). However, no prior investigation considered both randomized clinical trials (RCTs) and non-RCTs. We here evaluated the efficacy and safety of ARP compared with placebo (PCB) and other drugs at 3- and 12-weeks in adult and pediatric population including, for the first time, both observational and controlled studies.

METHODS

All studies were systematically located by searching electronic sources (EMBASE, MEDLINE, CINHAIL, PsychINFO, Cochrane Central Register of Controlled Trials, Scopus and ClinicalTrials.gov) till June 30th, 2015. The primary outcome was ARP efficacy (mean change from baseline in Young Mania Rating Scale); secondary outcomes regarded acceptability and safety. Results Sixteen RCTs and 6 non-RCTs met our inclusion criteria; 2505 and 2932 patients were included in the analyses of acute and stabilization phase, respectively. In both the acute and stabilization phases ARP efficacy was superior to PCB and comparable to other drugs. The safety profile was similar to other drugs considering in particular sedation, akathisia, weight gain, extrapyramidal and gastroenteric symptoms, with a significant lower risk of hyperprolactinemia particularly at 12-weeks.

LIMITATIONS

Data on failed trials are generally limited.

CONCLUSIONS

ARP resulted to be an effective treatment in children and adults with BD at 3- and 12-weeks both in a controlled experimental setting or in the real world clinical practice, being poorly associated with hyperprolactinemia. Larger studies are needed to confirm our results related to the maintenance phases and to the pediatric bipolar population.