Evaluation of adherence and persistence with oral versus long-acting injectable antipsychotics in patients with early psychosis

Nationwide study on antipsychotic polypharmacy among forensic psychiatric patients

This nationwide retrospective cross-sectional study examines the prevalence of antipsychotic polypharmacy (APP) and demographic, forensic, and clinical factors associated with its practice among Greenlandic forensic psychiatric patients. We collected data from electronic patient files, court documents, and forensic psychiatric assessments. We defined APP as two or more concurrent prescriptions of antipsychotic medication. The study population of 74 patients had a mean age of 41.4 years, and 61 were men. All included patients had either schizophrenia or another ICD-10 F2-diagnosis. We used unpaired t-tests and Chi² or Fisher's exact test. The prevalence of APP was 35% (n = 26), and there was a significant association between APP and a prescription of clozapine (Chi², p = 0.010), olanzapine (Fisher's test, p = 0.003), and aripiprazole (Fisher's test, p = 0.013). Furthermore, we found a significant association between APP and prescription of a first-generation antipsychotic (FGA) (Chi², p = 0.011). Despite recommendations in guidelines, the use of APP is common practice. The majority of forensic psychiatric patients suffer from severe psychiatric disorders, often with other comorbidities, including substance use disorder. The severity and complexity in mental health render forensic psychiatric patients at high risk of APP treatment. Further knowledge on APP use is crucial to secure and further improve the psychopharmacological treatment for this group of patients.

The effect of early or late initiation of long-acting antipsychotics on the caregiver burden in schizophrenia

The effective treatment in the early stages of schizophrenia is of critical importance to improve the prognosis. Schizophrenia affects patients' relatives too. The effects of early or late initiation of long-acting injectable antipsychotics (LAI-APs) on the patient have been shown, yet their effects on the caregiver are still unknown. We aimed to determine how the time of initiation of LAI-APs affects the caregiver burden by comparing the patients who were started on LAI-APs in the first 5 years of diagnosis and those who were started at a later period. Patients were classified as 'early-LAI' and 'late-LAI' according to the time of initiation of a LAI-AP. Their caregivers were also classified as the same way, as 'caregiver-early' and 'caregiver-late' and were compared in terms of caregiver burden. The quality of life, depression, anxiety, and caregiver burden scores of the caregiver-late group were significantly worse. The time of initiation of LAI-APs and the functioning levels of the patients were found to be determinant factors for the caregiver burden. This is the first study to investigate the effects of LAI-AP's initiation time on the caregivers to our knowledge. The use of LAI-APs in the early stages is associated with better outcomes for the caregiver.

Assessing readiness to implement long-acting injectable HIV antiretroviral therapy: provider and staff perspectives

BACKGROUND

Long-acting injectable antiretroviral therapy (LAI-ART) represents the next innovation in HIV therapy. Pre-implementation research is needed to develop effective strategies to ensure equitable access to LAI-ART to individuals living with HIV.

METHODS

We conducted focus group discussions (FGDs) with providers and staff affiliated with HIV clinics in San Francisco, Chicago, and Atlanta to understand barriers to and facilitators of LAI-ART implementation. Participants also completed a short survey about implementation intentions. FGDs were held via video conference, recorded, transcribed, and thematically analyzed using domains associated with the Consolidated Framework for Implementation Research (CFIR).

RESULTS

Between September 2020 and April 2021, we led 10 FDGs with 49 participants, of whom ~60% were prescribing providers. Organizational readiness for implementing change was high, with 85% agreeing to being committed to figuring out how to implement LAI-ART. While responses were influenced by the unique inner and outer resources available in each setting, several common themes, including implementation mechanisms, dominated: (1) optimism and enthusiasm about LAI-ART was contingent on ensuring equitable access to LAI-ART; (2) LAI-ART shifts the primary responsibility of ART adherence from the patient to the clinic; and (3) existing clinic systems require strengthening to meet the needs of patients with adherence challenges. Current systems in all sites could support the use of LAI-ART in a limited number of stable patients. Scale-up and equitable use would be challenging or impossible without additional personnel. Participants outlined programmatic elements necessary to realize equitable access including centralized tracking of patients, capacity for in-depth, hands-on outreach, and mobile delivery of LAI-ART. Sites further specified unknown logistical impacts on implementation related to billing/payer source as well as shipping and drug storage.

CONCLUSIONS

Among these HIV care sites, clinic readiness to offer LAI-ART to a subset of patients is high. The main challenges to implementation include concerns about unequal access and a recognition that strengthening the clinic system is critical.

Time-to-therapy discontinuation in patients newly diagnosed with schizophrenia initiated on long-acting injectable versus oral dopamine receptor blocking agents

AIM

The purpose of this project is to assess the time-to-therapy discontinuation and hospital readmission rate among patients newly diagnosed with schizophrenia who are prescribed long-acting injectable versus oral dopamine receptor blocking agents.

METHODS

A retrospective review of medical records was performed for adult patients admitted to an 80-bed inpatient behavioural health facility with a new diagnosis of schizophrenia. The primary outcome studied was time to therapy discontinuation within 1 year of discharge, while secondary outcomes assessed were time-to-therapy discontinuation within 90 days and readmission rate at 30-days, 6 months, and 1 year. Multivariate Cox proportional hazard and linear regression modelling were used for statistical analysis.

RESULTS

A total of 425 patients were included in the analysis, with 66.4% (n = 282) discharged on oral and 33.6% (n = 143) on long-acting injectable dopamine receptor blocking agents. At 1 year post-discharge, the rates of discontinuation were 49.7% for those prescribed long-acting injectable and 55.7% for those prescribed oral formulations (adjusted hazard ratio = 0.54, p = .012). There was no statistically significant difference in readmission rate between the patients prescribed long-acting injectable and oral dopamine receptor blocking agents at any timepoint tested.

CONCLUSIONS

The use of long-acting injectable dopamine receptor blocking agents was associated with longer time-to-discontinuation compared to oral agents when prescribed to patients newly diagnosed with schizophrenia in the inpatient setting. However, this was not associated with significant reductions in rehospitalization, calling into question the clinical impact. Future studies will seek to confirm these findings using a prospective study design.

Healthcare resource use and costs reduction with aripiprazole once-monthly in schizophrenia: AMBITION, a real-world study

Objective

This study aims to compare the hospitalization rate in individuals with schizophrenia who started their treatment with aripiprazole once monthly (AOM400) or atypical oral antipsychotics (OA) in Spain.

Methods

This is an observational and retrospective study based on the electronic medical records from the BIG-PAC database. The study population consisted of individuals diagnosed with schizophrenia who initiated their treatment with AOM400 (AOM cohort) or atypical OA (OA cohort) from 01/01/2017 to 31/12/2019. A 1:1 propensity score matching (PSM) procedure was conducted to match individuals of both cohorts. The number and duration of hospitalizations, persistence to treatment, healthcare resources use, and costs were analyzed after 12 months.

Results

After the PSM, 1,017 individuals were included in each cohort [age: 41.4 years (SD: 10.6); males: 54.6%]. During the follow-up period, the AOM cohort had a 40% lower risk of hospitalization than the OA group [HR: 0.60 (95% confidence interval, CI: 0.49-0.74)]. The median time to the first hospitalization was longer in individuals with AOM400 compared to those with OA (197 days compared to 174 days; p < 0.004), whereas hospital admissions were shorter (AOM400: 6 compared to OA: 11 days; p < 0.001). After 12 months, individuals receiving AOM400 were more persistent than those with OA (64.9% compared to 53.7%; p < 0.001). The OA cohort required more healthcare resources, mainly visits to primary care physicians, specialists, and emergency rooms than those receiving AOM400 (p ≤ 0.005 in all comparisons). AOM400 reduced the costs of hospitalizations, and emergency room, specialist and primary care visits by 50.4, 36.7, 16.1, and 10.9%, respectively, in comparison to the treatment with atypical OA. AOM400 led to annual cost savings of €1,717.9 per individual, from the societal perspective.

Conclusion

Aripiprazole once monthly reduces the number and duration of hospitalizations, together with the treatment costs of schizophrenia, as it reduces the use of healthcare resources and productivity losses in these individuals.

Preclinical Evaluation of Long-Acting Emtricitabine Semi-Solid Prodrug Nanoparticle Formulations

Long-acting injectable (LAI) formulations promise to deliver patient benefits by overcoming issues associated with non-adherence. A preclinical assessment of semi-solid prodrug nanoparticle (SSPN) LAI formulations of emtricitabine (FTC) is reported here. Pharmacokinetics over 28 days were assessed in Wistar rats, New Zealand white rabbits, and Balb/C mice following intramuscular injection. Two lead formulations were assessed for the prevention of an HIV infection in NSG-cmah^-/- humanised mice to ensure antiviral activities were as anticipated according to the pharmacokinetics. Cmax was reached by 12, 48, and 24 h in rats, rabbits, and mice, respectively. Plasma concentrations were below the limit of detection (2 ng/mL) by 21 days in rats and rabbits, and 28 days in mice. Mice treated with SSPN formulations demonstrated undetectable viral loads (700 copies/mL detection limit), and HIV RNA remained undetectable 28 days post-infection in plasma, spleen, lung, and liver. The in vivo data presented here demonstrate that the combined prodrug/SSPN approach can provide a dramatically extended pharmacokinetic half-life across multiple preclinical species. Species differences in renal clearance of FTC mean that longer exposures are likely to be achievable in humans than in preclinical models.

Feasibility study to evaluate capabilities for conducting psychiatric clinical research within the Rwandan mental healthcare system

OBJECTIVE

To evaluate the feasibility of conducting a large clinical trial within the Rwandan mental healthcare system that would establish the safety, efficacy and benefit of paliperidone palmitate once-monthly (PP1M) and once-every-3-months (PP3M) long-acting injectable formulations in adults with schizophrenia.

STUDY DESIGN

An open-label, prospective feasibility study.

SETTING/PARTICIPANTS

33 adult patients with schizophrenia were enrolled at 3 sites across Rwanda.

INTERVENTIONS

The study design included 3 phases of treatment: an oral run-in to establish tolerability to risperidone (1 week), lead-in treatment with flexibly dosed PP1M to identify a stable dose (17 weeks) and maintenance treatment with PP3M (24 weeks).

PRIMARY AND SECONDARY OUTCOME MEASURES

Feasibility endpoints included compliance with governmental and institutional requirements, acceptable supply chain delivery and proper onsite administration of risperidone/PP1M/PP3M, adequate site infrastructure, adequate training of clinical staff and successful completion of study procedures and scales. A variety of study scales were administered to assess outcomes relevant to patients, caregivers, clinicians and payers in Rwanda and other resource-limited settings.

RESULTS

This study was terminated early by the sponsor because certain aspects of study conduct needed to be addressed to maintain Good Clinical Practice requirements and meet regulatory standards. Results identified areas for improvement in study execution, including study governance, site infrastructure, study preparation and conduct of procedures, study budget and study assessments. Despite the identification of areas in need of adjustment, none of these limitations were considered insurmountable.

CONCLUSIONS

This work was designed to strengthen global research in schizophrenia by building the capacity of researchers to prepare and conduct pharmaceutical trials in resource-limited settings. Although the study was ended early, modifications motivated by the results will facilitate the successful design and completion of more comprehensive studies, including an ongoing, follow-up interventional trial of PP1M/PP3M in a larger population of patients in Rwanda.

TRIAL REGISTRATION NUMBER

NCT03713658.

Treatment with aripiprazole once-monthly injectable formulation is effective in improving symptoms and global functioning in schizophrenia with and without comorbid substance use - a post hoc analysis of the ReLiAM study

BACKGROUND

ReLiAM, Real-Life Assessment of Abilify Maintena, was the first reported long-term prospective non-interventional study for patients with schizophrenia treated with aripiprazole once-monthly injectable formulation (AOM) under real-life conditions. ReLiAM's primary aim was to evaluate the evolution of global functional status in patients treated with AOM for 12 months in Canada.

METHODS

The objective of this post hoc analysis of the ReLiAM study is to investigate the treatment effects of real-life use of AOM over a 1-year period in the subgroup of patients with reported substance use compared with patients without substance use.

RESULTS

The results of this post hoc analysis demonstrate that treatment with AOM for 12 months in patients with schizophrenia was comparably effective in improving global functioning in subgroups of patients with and without concomitant substance use.

CONCLUSIONS

These results support the use of AOM for the treatment of schizophrenia in patients with or without concomitant substance use.

TRIAL REGISTRATION

ClinicalTrials.gov NCT02131415, first posted on May 6, 2014. Overall trial status: Terminated.

Asian Subgroup Analysis of the REMISSIO Study: A Long-Term Efficacy and Safety Study of Paliperidone Palmitate 3-month Formulation in Patients with Stable Schizophrenia in a Naturalistic Clinical Setting

Objective

Methods

Results

Conclusion

A long-acting formulation of rifabutin is effective for prevention and treatment of Mycobacterium tuberculosis

Tuberculosis (TB) is a communicable disease caused by Mycobacterium tuberculosis (Mtb) and is a major cause of morbidity and mortality. Successful treatment requires strict adherence to drug regimens for prolonged periods of time. Long-acting (LA) delivery systems have the potential to improve adherence. Here, we show the development of LA injectable drug formulations of the anti-TB drug rifabutin made of biodegradable polymers and biocompatible solvents that solidifies after subcutaneous injection. Addition of amphiphilic compounds increases drug solubility, allowing to significantly increase formulation drug load. Solidified implants have organized microstructures that change with formulation composition. Higher drug load results in smaller pore size that alters implant erosion and allows sustained drug release. The translational relevance of these observations in BALB/c mice is demonstrated by (1) delivering high plasma drug concentrations for 16 weeks, (2) preventing acquisition of Mtb infection, and (3) clearing acute Mtb infection from the lung and other tissues.

Attitudes and perceptions about the use of long-acting injectable antipsychotics among behavioral health practitioners

Introduction

Long-acting injectable antipsychotics (LAI-As) are important tools for the treatment of schizophrenia, yet they appear to be underutilized. This study will assess practitioner perceptions of LAI-As to elucidate reasons for underuse and uncover new avenues to increase appropriate use.

Methods

An anonymous electronic survey was developed and actively distributed to behavioral health care practitioners (MD, DO, PA, NP, PharmD, RN, LCSW). Independent t testing and linear regression analysis was used to assess for interactions between survey responses and individual factors.

Results

A total of 146 survey responses were collected from September 3, 2020 to March 17, 2021. On average, participants thought that LAI-As were slightly underutilized in practice. The mean estimated patient acceptance rate for LAI-A therapy was 38.6% ± 29.5% (range = 0%-100%). Participants who were <40 years of age and those with a psychiatric pharmacist at their practice site had significantly higher estimated acceptance rates. The highest-rated barriers to LAI-A use were related to negative patient attitudes, lack of patient education, and access issues (eg, transportation, cost). Respondent characteristics including age, gender identity, geographic location, practice setting, and the presence of a psychiatric pharmacist significantly influenced the perceived impact of these barriers.

Discussion

Behavioral health practitioners generally believed that LAI-As were underused, and only one-third of their patients would be accepting of the therapy. Several barriers were perceived as frequently impacting LAI-A use, but these were reduced by the presence of a psychiatric pharmacist. Understanding practitioner perceptions can assist with increasing the use of LAI-As.

A naturalistic study on the effectiveness of long-acting antipsychotics in an early intervention program for patients with recent-onset psychosis

AIM

To evaluate the impact of long-acting injectable antipsychotics (LAIs) on the risk of hospitalization and the length of hospitalization in the setting of an early intervention program for patients with recent-onset psychosis.

METHODS

Observational, retrospective study conducted under routine clinical practice conditions. We included all patients admitted from July 2015 to April 2020 to the Early Intervention Program in Psychosis. We analysed the incidence of hospitalization and hospitalization days before and after treatment with LAIs and calculated the incidence rate ratio (IRR). We also compared the outcomes of patients treated with LAIs with those of the patients maintained on oral antipsychotics using a binomial negative regression analysis.

RESULTS

A total of 170 patients were included in the program. Of them, 34 (20%) received LAIs (aripiprazole [n = 22], and paliperidone/risperidone [n = 12]). There was an 89% reduction in the incidence of hospitalizations after treatment with LAIs (IRR 0.11, 95%CI 0.05-0.21; p < .0001). The IRR for LAIs vs. oral antipsychotics was 0.87 (95%CI, 0.24-3.18; p = .829). The presence of a substance use disorder significantly increased the rate of hospitalizations by 123% (IRR 2.23, 95%CI 1.31-3.78). Analyses of hospitalization days showed similar results.

CONCLUSIONS

Our results suggest that LAIs are useful for the management of patients with recent-onset psychosis who fail treatment with oral antipsychotics. Whether LAIs are superior to oral antipsychotics as first-line treatment of patients with early psychosis and/or could play a special role in managing patients with early psychosis and comorbid substance use disorders should be further evaluated.

Efficacy of long-acting injectable versus oral antipsychotic drugs in early psychosis: A systematic review and meta-analysis

AIM

Long-acting injectable antipsychotic drugs (LAIs) are often used as an alternative to oral antipsychotics (OAPs) in individuals with psychosis who demonstrate poor medication adherence. Previous meta-analyses have found mixed results on the efficacy of LAIs, compared to OAPs, in patients with psychotic disorders. The objective of this meta-analysis was to compare the effectiveness of using LAIs versus OAPs in the early stages of psychosis.

METHODS

Major electronic databases were used to search for any studies examining the comparative effectiveness (i.e., relapse, adherence, hospitalization, and all-cause discontinuation) of any LAIs versus OAPs in early stages of psychosis. Studies published up to 6 June, 2019 were included and no language restriction was applied. Inclusion criteria were a diagnosis of schizophrenia or related disorder, where patients were in their first episode or had a duration of illness ≤5 years. Data were analysed using a random-effects model.

RESULTS

Fifteen studies (n = 10 584) were included, of which were 7 RCTs, 7 observational studies, and 1 post-hoc analysis. We found that LAIs provided advantages over OAPs in terms of relapse rates. No significant differences were found between LAI and OAP groups in terms of all-cause discontinuation, hospitalization, and adherence rates. However, considering only RCTs revealed advantages of LAIs over OAPs in terms of hospitalization rates.

CONCLUSIONS

LAIs may provide benefits over OAPs with respect to reducing relapse and hospitalization rates in early psychosis patients. There is a need for larger and better-designed studies comparing OAPs and LAIs specifically in early psychosis patients.

Long-acting injectable antipsychotics for early psychosis: A comprehensive systematic review

AIM

Long acting injectable (LAI) antipsychotics are an alternative to oral antipsychotic (OAP) treatment and may be beneficial for patients in the early stages of schizophrenia. This study aims to provide a comprehensive review on the efficacy of first-generation and second-generation LAI antipsychotics in recent-onset, first-episode, and early psychosis patients.

METHODS

MEDLINE, EMBASE, PsycINFO, and Web of Science Core databases were used to search for studies that used LAIs in early psychosis patients. Studies published up to 06 Jun 2019 were included with no language restrictions applied. Inclusion criteria were a diagnosis of schizophrenia or related disorder, where patients were in their first episode or had a duration of illness ≤5 years.

RESULTS

33 studies were included: 8 RCTs, 4 post-hoc analyses, 2 case reports, and 19 naturalistic studies. The majority of studies evaluated risperidone LAIs (N = 14) and paliperidone palmitate (N = 10), while the remainder investigated fluphenazine decanoate (N = 3), flupentixol decanoate (N = 2), and aripiprazole (N = 1). Two studies did not specify the LAI formulation used, and one cohort study compared the efficacy of multiple different LAI formulations.

CONCLUSIONS

While the majority of data is based on naturalistic studies investigating risperidone LAIs or paliperidone palmitate, LAIs may be an effective treatment for early psychosis patients in terms of adherence, relapse reduction, and symptom improvements. There is still a need to conduct more high quality RCTs that investigate the efficacy of different LAI formulations in early psychosis patients.

Effectiveness and Quality of Life with Paliperidone Palmitate 3-Monthly in Comparison with Other Long-Acting Drugs

PURPOSE

Antipsychotic long-acting injections (AP-LAIs) are indicated for patients affected by schizophrenia especially those with poor treatment adherence.

PATIENTS AND METHODS

To compare paliperidone palmitate 3-monthly (PP3M), paliperidone palmitate one-monthly (PP1M) and haloperidol decanoate (HAL-D) treatment, we enrolled 90 patients with schizophrenia treated in Mental Health Center with one of the three AP-LAIs for at least six months and followed them for another 6 months. At 6 and 12 months of treatment we administered Clinical Global Impression-Severity, Global Assessment of Functioning and World Health Organization Quality of Life-26 items (WHOQOL-BREF). At 1-year treatment, we evaluated relapses (psychiatric hospitalizations and urgent consultations), side effects and drop-outs.

RESULTS

We did not highlight any statistically significant difference among the three treatments in relapses and scale scores. Weight increase was significantly higher in PP1M and PP3M groups. Twelve patients (13.3%) discontinued AP-LAI. At 1-year AP-LAI treatment, 69% of patients rated quality of life as "good" or "very good" and 71% declared themselves to be "satisfied" or "very satisfied".

CONCLUSION

HAL-D, PP1M and PP3M 1-year treatments were similarly effective in preventing relapses and improving quality of life and health satisfaction. All discontinuations in the new 3-monthly antipsychotic treatment were caused by patient refusal to continue it.

The use of concurrent long-acting injectable antipsychotic therapy with paliperidone palmitate and aripiprazole monohydrate in a patient with schizophrenia

International schizophrenia guidelines endorse seeking the patient's preference for guiding antipsychotic therapy. There exists a small niche of patients who prefer, or are required to use, long-acting injectable antipsychotic medications due to the adherence benefit. However, they may not be able to achieve adequate symptom reduction prior to experiencing treatment-limiting adverse effects from a single agent. Here, we present a patient case prescribed concurrent long-acting injectable antipsychotic therapy with paliperidone palmitate and aripiprazole monohydrate due to patient preference in the setting of a history of nonadherence to oral medications, treatment-limiting adverse effects to long-acting injectable paliperidone, and failure to achieve adequate symptom reduction with long-acting injectable aripiprazole monotherapy.

Veteran adherence to oral versus injectable AUD medication treatment

Introduction

AUD medication treatment has been shown to improve outcomes compared with placebo when confined to per-protocol analysis. The same outcomes, however, have not always been maintained in intent-to-treat analysis, thus suggesting adherence may have a significant impact on efficacy outcomes. There is conflicting evidence present in the literature comparing adherence to oral versus injectable AUD pharmacotherapy and a paucity of information in the veteran population on risk factors for low adherence.

Methods

The primary end point of this retrospective chart review was to determine whether adherence rates differ between oral and injectable AUD treatments in veterans during the first year of treatment (at 3, 6, 9, and 12 months) using the portion of days covered model. Secondary end points were to determine differing characteristics between patients with high versus low adherence and compare alcohol-related readmission rates and discontinuation rates between groups.

Results

Adherence to injectable extended-release (XR) naltrexone was significantly higher than oral naltrexone at all time points and was significantly higher than disulfiram at 3, 6, and 9 months, but it was not significantly different from acamprosate at any time point. At months 9 and 12, acamprosate had significantly higher adherence compared with oral naltrexone. Patients with higher adherence were seen more frequently in the mental health clinic and had previously tried more AUD medications. The discontinuation rates and alcohol-related admission rates were not significantly different between groups at 1 year.

Discussion

XR naltrexone may improve adherence rates compared with oral naltrexone or disulfiram, but not acamprosate based on these outcomes. Patients may have increased adherence if they are seen more often in clinic and have trialed more AUD medications.

Improving adherence to pharmacological treatment for schizophrenia: a systematic assessment

Introduction: Poor adherence to pharmacological treatment is prevalent in schizophrenia, affecting more than half of patients at some time, with increased risks of clinical worsening, adverse outcomes, suicide, and increased resource utilization including hospitalization, with higher costs.Areas Covered: This review considers factors associated with treatment-nonadherence among schizophrenia patients, with a systematic evaluation of interventions aimed at improving adherence with an emphasis on evidence arising from their testing.Expert opinion: Several interventions have addressed factors empirically associated with treatment-nonadherence, including various drug-, patient - and clinical services-associated factors. They include long-acting injected (LAI) drug formulations, behavioral interventions, and technology-supported methods. Use of LAI antipsychotics and behavioral techniques aimed at incorporating medicine-taking into daily routines with electronic monitoring have been assessed relatively extensively. Mobile, digital applications including medication monitoring systems and artificial intelligence-based interactions are emerging but have been tested in few trials of limited quality with inconclusive results. Randomized, controlled, blinded trials based on clinically representative samples are needed to evaluate not only adherence, but also to test for clinically meaningful and sustained clinical benefits in schizophrenia patients, who are especially difficult to treat.

Patterns of long acting injectable antipsychotic use and associated clinical factors in schizophrenia among 15 Asian countries and region

INTRODUCTION

Patterns of clinical use of long-acting injectable (LAI) antipsychotic drugs in many countries, especially in Asia, for treatment of patients diagnosed with chronic psychotic disorders including schizophrenia are not well established.

METHODS

Within an extensive research consortium, we evaluated prescription rates for first- (FGA) and second-generation antipsychotic (SGA) LAI drugs and their clinical correlates among 3557 subjects diagnosed with schizophrenia across 15 Asian countries and region.

RESULTS

Overall, an average of 17.9% (638/3557; range: 0.0%-44.9%) of treated subjects were prescribed LAI antipsychotics. Those given LAI vs orally administered agents were significantly older, had multiple hospitalizations, received multiple antipsychotics more often, at 32.4% higher doses, were more likely to manifest disorganized behavior or aggression, had somewhat superior psychosocial functioning and less negative symptoms, but were more likely to be hospitalized, with higher BMI, and more tremor. Being prescribed an FGA vs SGA LAI agent was associated with male sex, aggression, disorganization, hospitalization, multiple antipsychotics, higher doses, with similar risks of adverse neurological or metabolic effects. Rates of use of LAI antipsychotic drugs to treat patients diagnosed with schizophrenia varied by more than 40-fold among Asian countries and given to an average of 17.9% of treated schizophrenia patients. We identified the differences in the clinical profiles and treatment characteristics of patients who were receiving FGA-LAI and SGA-LAI medications.

DISCUSSION

These findings behoove clinicians to be mindful when evaluating patients' need to be on LAI antipsychotics amidst multifaceted considerations, especially downstream adverse events such as metabolic and extrapyramidal side effects.

Acceptability and efficacy of naltrexone for criminal justice-involved individuals with opioid use disorder: a systematic review and meta-analysis

BACKGROUND AND AIMS

Criminal justice-involved individuals carry a disproportionately higher burden of opioid use disorder (OUD) than those not involved with the criminal justice system, and are often unable to access opioid agonist therapies such as methadone and buprenorphine. The opioid receptor antagonist naltrexone (NTX) is effective for the prevention of relapse to OUD and may be more acceptable in criminal justice settings. The objectives of this review were to: (1) provide an overall summary effect across studies for the efficacy and acceptability of oral and injectable NTX for the treatment of OUD among criminal justice-involved individuals and (2) examine systematic variations in study results to explain heterogeneity among study-specific effects.

METHODS

Systematic review and meta-analysis of 1045 patients across 11 studies (10 randomized controlled trials, one quasi-experimental study). All available outcomes were pooled using random-effects meta-analysis. Subgroup analyses were conducted for oral and injectable naltrexone; meta-regression analyses were conducted for socio-demographic and study-level characteristics.

RESULTS

NTX improved retention in treatment [risk ratio (RR) = 1.31; 95% confidence interval (CI) = 1.05, 1.63], reduced rates of re-incarceration (RR = 0.70, 95% CI = 0.54-0.92), reduced opioid relapse (RR = 0.63, 95% CI = 0.53-0.76) and improved opioid abstinence (RR = 1.38, 95% CI = 1.16-1.65). While NTX was associated with a greater burden of adverse events overall (RR = 1.49, 95% CI = 1.13-1.95), the findings were inconclusive as to whether or not a difference was present for the number of serious adverse events or overdoses.

CONCLUSIONS

Naltrexone appears to be efficacious and acceptable for the treatment of opioid use disorder among criminal justice-involved individuals; however, the risk for adverse events must be weighed against the potential benefits.

Promoting Medication Adherence Among Psychiatric Patients With a History of Nonadherence: A Clinical Practice Improvement Program

BACKGROUND

People with serious mental illness may require long-term psychotropic medications. However, nonadherence is prevalent after discharge, often leading to re-admission. Several strategies exist to reduce nonadherence. The current project uses clinical practice improvement methodologies to test and adjust strategies to improve medication adherence at the Institute of Mental Health in Singapore.

METHODS

Two focus groups (one of which involved nonadherent individuals and the other adherent individuals) were conducted to explore the root cause of our service users' nonadherence. On the basis of the causes identified, the team developed and implemented a person-centered medication adherence counseling intervention, incorporating motivational interviewing and psychoeducation. Data from all service users (n=156) who were nonadherent to psychotropic medications upon admission to our men's ward between October 2017 and December 2018 were examined, with 63 of the men serving as the baseline sample and 93 receiving the adherence intervention. The team also reduced medication frequency and actively explored patients' willingness to switch to long-acting injectable antipsychotics. A validated visual analogue self-reporting scale was used to measure adherence at screening and 30 days after discharge. Interrupted time series analysis was used to assess the effects.

RESULTS

After an intervention involving 3 specific strategies that addressed the concerns identified during the focus groups, the percentage of people who adhered to their treatment regimen 30 days after discharge increased by 33% (95% confidence interval: 15%-51%, P=0.001). Our balance measure (a secondary outcome that may be negatively or positively affected by efforts to influence the primary outcome), which was the percentage of people readmitted within 30 days of their discharge, showed a significant improvement (ie, a decrease in percentage readmitted).

CONCLUSIONS

Quality improvement methodologies can be used to solve common problems with context-specific solutions. The implementation of person-centered medication adherence counseling led by an advanced practice nurse in concert with optimization of medication regimens appears to be a promising strategy for improving adherence in nonadherent patients admitted to the psychiatric ward.

Stable patients with schizophrenia switched to paliperidone palmitate 3-monthly formulation in a naturalistic setting: impact of patient age and disease duration on outcomes

BACKGROUND

Paliperidone palmitate 3-monthly (PP3M) is a second-generation, long-acting injectable antipsychotic formulation indicated for the maintenance treatment of adults with schizophrenia first stabilized with paliperidone palmitate 1-monthly (PP1M). This exploratory post hoc subgroup analysis of the 52-week, phase 3b REMISSIO study analysed outcomes according to patient age and disease duration in a naturalistic clinical setting.

METHODS

Outcomes of patients with schizophrenia were analysed according to age [<35 years (n = 123) versus ⩾35 years (n = 182)] and disease duration [⩽3 years (n = 72) versus >3 years (n = 233)]. The primary efficacy outcome was the proportion of patients achieving symptomatic remission according to the Andreasen criteria. Adverse events were monitored throughout the study.

RESULTS

At endpoint (last observation carried forward), 60.7% (95% CI: 51.4%, 69.4%) of younger patients and 54.1% of older patients (95% CI: 46.6%, 61.6%) achieved symptomatic remission. The proportions for patients with disease duration ⩽3 years and >3 years were similar: 57.8% (45.4%, 69.4%) versus 56.5% (49.8%, 62.9%). Functional remission was reached by 45.4% (36.2%, 54.8%) of patients aged <35 years and 36% (28.9%, 43.6%) of patients aged ⩾35 years with a similar pattern when analysed by disease duration. PP3M had a favourable safety profile and was generally well tolerated in both age groups.

CONCLUSION

Patients with schizophrenia, previously stabilized on PP1M, may benefit from PP3M treatment with some additional potential improvements if started early in the disease course.

CLINICAL TRIALSGOV

NCT02713282.

Evidence-based guidelines for the pharmacological treatment of schizophrenia: Updated recommendations from the British Association for Psychopharmacology

These updated guidelines from the British Association for Psychopharmacology replace the original version published in 2011. They address the scope and targets of pharmacological treatment for schizophrenia. A consensus meeting was held in 2017, involving experts in schizophrenia and its treatment. They were asked to review key areas and consider the strength of the evidence on the risk-benefit balance of pharmacological interventions and the clinical implications, with an emphasis on meta-analyses, systematic reviews and randomised controlled trials where available, plus updates on current clinical practice. The guidelines cover the pharmacological management and treatment of schizophrenia across the various stages of the illness, including first-episode, relapse prevention, and illness that has proved refractory to standard treatment. It is hoped that the practice recommendations presented will support clinical decision making for practitioners, serve as a source of information for patients and carers, and inform quality improvement.

Aripiprazole Long-Acting Injection During First Episode Schizophrenia-An Exploratory Analysis

Background: Long-acting injectable (LAI) aripiprazole was found to be efficacious in schizophrenia. In common clinical practice, the use of LAIs is often restricted to chronic patients with frequent relapses and poor adherence. Recently, some investigators advanced the idea of early LAI use also in young people with schizophrenia at their first psychotic episode (FEP). Objective: Our study aimed to assess the effect of LAI aripiprazole once monthly (AOM) in the treatment of FEP in patients aged 18-26 years. Methods: We included 50 patients with DSM-5 schizophrenia as assessed with SCID, and used the Clinical Global Impressions Scale-Severity of Illness (CGI-S) and the Positive and Negative Syndrome Scale (PANSS) to assess symptom severity and the World Health Organization Quality of Life (WHOQOL), the Short Form Health Survey (SF-36) and the Personal and Social Performance Scale (PSP) to assess quality of life (QoL) and global health perception at baseline and 3, 6, 9, and 12 months after the first AOM injection. Results: AOM was associated with a progressive improvement, compared to baseline, of both positive (p < 0.001) and negative (p < 0.001) symptoms and in general psychopathology (p < 0.001) and decrease in global severity (p < 0.001). We also observed progressive improvement in QoL and social and personal functioning. Treatment adherence was 78% at study endpoint. Our results support that AOM may improve psychotic symptoms, QoL and social functioning in young FEP patients. Further studies should compare AOM to its oral formulation in the treatment of young patients with schizophrenia at the outset of their illness.

Patients' experiences of long-acting injectable antipsychotics: a qualitative study

BACKGROUND

In this study, we applied a qualitative approach to explore patients' subjective experiences of long-acting injectable antipsychotics (LAIs).

METHODS

Patients undergoing psychiatric treatment from the chronic ward or outpatient department of a medical center in northern Taiwan who had experience with LAI treatment were enrolled. Information was obtained through semi-structured in-depth interviews. The interviews were audio-recorded and then translated verbatim, and the data were collected and analyzed concurrently to develop major themes and categories.

RESULT

In total, 14 participants (8 female) were interviewed. In a bio-psycho-social model, the participants used LAIs as a method to become "normal," in order to achieve a balance between the "effects" and "side effects" that may influence their daily lives. Their past experiences constructed their concepts about and expectations regarding LAIs, and their relationships with their family members and co-workers also modeled their experiences.

CONCLUSION

In our study, we sought to understand the experience of LAI in the daily life context of the patients. We attempted to use a bio-psycho-social model to evaluate the subjective experience of the patients; an improved understanding can help mental health specialists gain a closer insight into patient experience.