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Background Anorexia nervosa (AN), comorbid with autism spectrum disorder (ASD), poses significant treatment challenges due to cognitive rigidity, poor insight, and frequent nonadherence to pharmacological interventions. Although second‐generation antipsychotics (SGAs) have been used off‐label in AN, evidence for long‐acting injectable (LAI) formulations remains scarce, particularly in adult patients with neurodevelopmental disorders. Case Presentation We report the case of a 27‐year‐old woman with severe AN and comorbid ASD who exhibited repeated hospitalizations due to critical underweight and persistent refusal of oral medications. Cognitive assessment revealed mild intellectual disability (IQ 56). The patient demonstrated obsessive‐compulsive traits and extreme rigidity toward food intake, and was resistant to multiple oral antipsychotics. While risperidone was tolerated, poor adherence limited its efficacy. After obtaining informed consent, LAI paliperidone palmitate was initiated (initial dose 25 mg, increased to 50 mg monthly). Following a short period of psychoeducation and lifestyle intervention, the patient maintained psychiatric and nutritional stability over a 3‐year outpatient follow‐up without rehospitalization. Her body mass index stabilized at approximately 24 kg/m2. No severe adverse effects were reported. Conclusion This case highlights the potential role of LAI paliperidone palmitate in managing treatment‐refractory AN with comorbid ASD and intellectual disability, particularly in patients with poor adherence and prominent obsessive traits. Although antipsychotics are not standard for AN, LAI formulations may offer pragmatic, sustainable benefits in selected cases. Further studies are warranted to assess long‐term safety and efficacy in this population.

Aims There is increasing evidence showing the importance of long‐acting injectable antipsychotics in the management of schizophrenia, especially in terms of improving patient medication compliance. A panel of experienced clinicians in Hong Kong mapped out a set of consensus statements with an aim to facilitate the understanding and use of long‐acting injectable antipsychotics among local physicians. Methods Eight discussion areas regarding long‐acting injectable antipsychotics were selected by the chairman of the consensus group. A series of meetings were held for the panelists to discuss the published literature and their clinical experience, followed by the drafting of consensus statements. At the final meeting, each consensus statement was voted on anonymously by all members based on its practicability of recommendation in Hong Kong. Results A total of 12 consensus statements on the rational use of long‐acting injectable antipsychotics were established and accepted by the consensus group. Conclusion The consensus statements aim to provide practical guidance for Hong Kong physicians on the use of long‐acting injectable antipsychotics in schizophrenia patients. These statements may also serve as a reference for doctors in other parts of the Asia–Pacific region.

The aim of this study was to clarify whether early symptomatic improvement in response to a long-acting injectable antipsychotic (LAI) contributes to subsequent social functional remission in patients with schizophrenia using the previous clinical trial data (EudraCT registration number: 2011-004889-15). Associations between other factors and social functional remission were also explored. We analyzed 428 patients with schizophrenia in which the personal and social performance scale (PSP) and the involvement evaluation questionnaire (IEQ) at the time of the base line were recorded. Social functional remission was defined as participants who scored PSP >70 at the end of 65 weeks. Logistic regression analyses were done to examine associations between social functional remission and clinical and demographic characteristics including early symptomatic response evaluated by Positive and Negative Syndrome Scale (PANSS) at week one. One hundred out of 428 patients showed social functional remission at the end of the observation period. Shorter duration of illness, higher baseline score of supervision evaluated by IEQ and higher baseline PSP were significantly associated with the social functional remission. Improvement of positive subscale of PANSS at one week was significantly associated with later social functional remission when baseline PSP scores were excluded from predictive variables. Shorter duration of illness, residual type of schizophrenia, higher baseline score of supervision and higher baseline social functioning were predictors of subsequent social functional remission. Although its effect seems to be limited, early symptomatic improvement could be also was a predictor of social functional remission.

The coronavirus disease pandemic has presented healthcare systems with unprecedented challenges globally and substantially impacted the management of chronic diseases such as schizophrenia. This narrative review highlights the usefulness of long‐acting injectable antipsychotics (LAIs) as maintenance therapy for patients with schizophrenia during the pandemic. The analysis of relevant literature and psychiatric survey data revealed diverse trends in LAIs prescription and patient adherence with oral antipsychotics. Although some studies have reported a decrease in LAIs prescriptions owing to pandemic‐related disruptions, others have suggested stable patient adherence with oral antipsychotics. Approximately 70% of Japanese psychiatrists reported an increase in schizophrenia relapse rates in a survey, underscoring the critical role of LAIs in maintaining therapeutic stability. The potential benefits of LAIs with extended dosing intervals have been highlighted, including improving oral medication adherence and reducing the frequency of hospital visits. In conclusion, this review emphasizes the continued need for uninterrupted LAIs therapy in conjunction with community and home‐based care despite the disruptions caused by the coronavirus disease pandemic. Further development of LAIs maintenance therapy strategies considering the ongoing pandemic and potential future public health emergencies are required. Evidence of trends in LAI in different countries during the COVID‐19 pandemic.

Although relapse is an important outcome to measure the effectiveness of schizophrenia treatment, no standard definition exists. This review aimed at identifying definitions and measurements of schizophrenia relapse in observational studies of long‐acting injectables (LAIs) versus oral antipsychotics (OAPs) and at determining their impact on heterogeneity of comparative effectiveness estimates. A systematic review was conducted using MEDLINE and Embase (01 January 2010–11 November 2019 [date last searched]). Pragmatic searches of gray literature and snowballing were also conducted. Search outputs were screened independently by two assessors at first stage, and full‐text of potentially eligible sources at second stage. For each retained source, definition and measurement of relapse, study methods, and comparative effectiveness estimates were extracted. Heterogeneity of estimates was assessed using I2 statistic with a threshold of 50% for substantial heterogeneity. Literature search yielded 543 sources and pragmatic searches, 21, of which 35 were eligible. Twelve definitions of relapse were found based on hospitalization/emergency department (ED) data (28 studies) or clinical assessment (5 studies). No definition was provided in five studies. According to quantitative analyses, in studies defining relapse as schizophrenia‐related hospitalization and/or ED visits over 1‐year follow‐up, LAIs were significantly more effective than OAPs. For studies measuring relapse based on all‐cause hospitalization, heterogeneity was too high for pooling; yet this definition is the most frequently found in pooled estimates published in the literature. Schizophrenia relapse definitions led to substantial heterogeneity of comparative effectiveness estimates of LAIs versus OAPs. Creating study subgroups based on relapse definition effectively reduces statistical heterogeneity. Definition of schizophrenia relapse is a major source of heterogeneity in observational studies comparing long‐acting injectables with oral antipsychotic drugs. Hence, standardization of criteria to ascertain relapse as an outcome would be needed to allow synthesis of available findings.

Aims To investigate the negative attitudes of Japanese psychiatrists toward atypical long‐acting injectable (LAI) antipsychotics, which are the current mainstream LAIs in Japan. Methods We surveyed 69 Japanese psychiatrists using a 5‐point Likert scale to assess their attitudes toward atypical LAI antipsychotics. Our assessment referenced concerns identified in a study conducted in Japan a decade ago, which found significant differences when compared with a survey of German psychiatrists. We also identified the factors influencing these negative attitudes. Additionally, the results were compared with those of previous Japanese and German studies. Results More than 50% of Japanese psychiatrists expressed negative attitudes toward atypical LAI antipsychotics in various areas. These concerns included apprehensions about cost, reluctance to recommend them initially, pain from injections, complexity of switching to LAI, usage in first‐episode cases, and sufficient medication adherence with oral drugs. In all three studies, cost and adequate adherence to oral medication were concerns that exceeded the average of the three negative comments. Age and experience in psychiatry influenced the psychiatrists' attitudes toward using these drugs in first‐episode cases. Conclusions These findings shed light on the reasons for the underutilization of atypical LAI antipsychotics and suggest opportunities to enhance their appropriate use in clinical settings. We investigated the barriers to the use of long‐acting injectable atypical antipsychotics from a comparative psychiatrist survey in Japan.

IntroductionLong-acting injectable antipsychotics (LAIs) have emerged as a new therapeutic option to treat patients suffering a psychotic disorder. To date, there is a lack of studies regarding safety and clinical use pattern of LAIs in pregnant women.ObjectivesProvide evidence and real world clinical data of pregnant women with schizophrenia who have been treated with long-acting aripiprazole monohydrate (aripiprazole once monthly [AOM] condition) during their pregnancy.MethodsDescriptive real-world clinical experiences of pregnant women in treatment with AOM. The information was obtained by reviewing electronic medical records and by direct clinical observation management.ResultsThe first six case-series describing the pregnancy course of women with schizophrenia treated with AOM. All of them remained psychopathologically stable through pregnancy, and their infants became healthy with normal developmental milestones (Table 1).Table 1.Clinical characteristics of six case-reports.Mothers123456Maternal/Pregnancy outcomesAge(years)352935313830DiagnosisSchizophreniaSchizophreniaSchizophreniaSchizophreniaSchizophreniaSchizophreniaAOM(mg/days)400-300400-300400-300160300400Type of deliveryEutocic.Eutocic, pretermEutocicEutocicEutocicEutocicNeonatal outcomesWeight(grams)330018003140310229403400GenderFemaleFemaleMaleMaleMaleMaleDevelopmental Abnormalities(years)No(3)No(2)No( 0.17)No(2)No(2)No(1.5)ConclusionsThe favorable results in this case-series suggest that despite the lack of evidence on reproductive safety and treatment with AOM during pregnancy, this therapeutic option should be considered in pregnant women with schizophrenia. However, further research on the use of long-acting antipsychotics in pregnant women is needed.DisclosureNo significant relationships.

IntroductionSchizophrenia is a chronic disease that requires lifelong medical care and supervision. There is a high rate of relapse, mostly caused by poor adherence to oral antipsychotics. Long-acting injectable (LAI) antipsychotics have proved effective in schizophrenia and other severe psychotic disorders due to the stable blood levels, leading to a reduction of the risk of relapse. LAIs are associated with better functioning, quality of life, and patient satisfaction. In Treatment-resistant schizophrenia the combination of antipsychotics is a common practice. Nevertheless, the combination of two different long-acting injectable antipsychotics is not frequent.ObjectivesA case of a 34-year-old man is presented, previously diagnosed of Schizophrenia, with highly disabling chronic positive symptoms. With no in-sight and no will in receiving treatment. Has been stable for a year while being in treatment with paliperidone 525mg LAI/ 10 weeks, and aripiprazole 400mg LAI/28 days.MethodsThe patient was closely observed and given oral paliperidone, after 5 days long-acting paliperidone was introduced. He was discharged with mild improvement of his psychiatric symptoms. While being in treatment with Paliperidone 525mg, he kept vivid delusions and hallucinations. The patient still refused to take any oral medications. Long-acting aripiprazole 300mg was added to the treatment.ResultsHe showed clinical improvement after a month. He has been stabilized for one year.ConclusionsTreating resistant schizophrenia is among the most challenging clinical endeavors. A very helpful approach to improve adherence in schizophrenia is the use of long-acting injectable (LAI) antipsychotics. A major effort on scientific research of combination of LAI is needed.DisclosureNo significant relationships.

Background: Long-acting injectable antipsychotics (LAIs) have advantages over oral antipsychotics (OAPs) in preventing relapse and hospitalization in chronically ill patients with schizophrenia-spectrum disorders (SSDs), but evidence in patients with first-episode/recent-onset, that is, early-phase-SSDs is less clear. Objectives: To assess the relative medium- and long-term efficacy and safety of LAIs versus OAPs in the maintenance treatment of patients with early-phase SSDs. Method: We searched major electronic databases for head-to-head randomized controlled trials (RCTs) comparing LAIs and OAPs for the maintenance treatment of patients with early-phase-SSDs. Design: Pairwise, random-effects meta-analysis. Relapse/hospitalization and acceptability (all-cause discontinuation) measured at study-endpoint were co-primary outcomes, calculating risk ratios (RRs) with their 95% confidence intervals (CIs). Subgroup analyses sought to identify factors moderating differences in efficacy or acceptability between LAIs and OAPs. Results: Across 11 head-to-head RCTs (n = 2374, median age = 25.2 years, males = 68.4%, median illness duration = 45.8 weeks) lasting 13–104 (median = 78) weeks, no significant differences emerged between LAIs and OAPs for relapse/hospitalization prevention (RR = 0.79, 95%CI = 0.58–1.06, p = 0.13) and acceptability (RR = 0.92, 95%CI = 0.80–1.05, p = 0.20). The included trials were highly heterogeneous regarding methodology and patient populations. LAIs outperformed OAPs in preventing relapse/hospitalization in studies with stable patients (RR = 0.65, 95%CI = 0.45–0.92), pragmatic design (RR = 0.67, 95%CI = 0.54–0.82), and strict intent-to-treat approach (RR = 0.64, 95%CI = 0.52–0.80). Furthermore, LAIs were associated with better acceptability in studies with schizophrenia patients only (RR = 0.87, 95%CI = 0.79–0.95), longer illness duration (RR = 0.88, 95%CI = 0.80–0.97), unstable patients (RR = 0.89, 95%CI = 0.81–0.99) and allowed OAP supplementation of LAIs (RR = 0.90, 95%CI = 0.81–0.99). Conclusion: LAIs and OAPs did not differ significantly regarding relapse prevention/hospitalization and acceptability. However, in nine subgroup analyses, LAIs were superior to OAPs in patients with EP-SSDs with indicators of higher quality and/or pragmatic design regarding relapse/hospitalization prevention (four subgroup analyses) and/or reduced all-cause discontinuation (five subgroup analyses), without any instance of OAP superiority versus LAIs. More high-quality pragmatic trials comparing LAIs with OAPs in EP-SSDs are needed. Trial registration: CRD42023407120 (PROSPERO). Plain language summary Comparing long-acting injections and pills for early schizophrenia: a study review and combined analysis Background: We explored whether antipsychotics long-acting injections (LAIs) might outperform regular antipsychotics pills for people dealing with early-stage conditions like schizophrenia. While LAIs have clear benefits for those with long-term challenges, their effectiveness for those just starting to grapple with these issues is less certain. Objective: We aimed to uncover whether LAIs or regular antipsychotic pills demonstrate better outcomes over the medium and long term for individuals in the early stages of schizophrenia. Method: We scrutinized several studies comparing LAIs to regular pills in treating early-stage schizophrenia. Employing a combined analysis, we assessed factors such as preventing relapses and hospitalizations, as well as patient treatment adherence. Design: We combined different study results in one unique analysis. We delved into whether LAIs surpassed regular pills in preventing relapses and hospitalizations and in patient treatment adherence. Results: In our study of 11 trials involving over 2000 participants, we observed that LAIs and regular antipsychotic pills were generally comparable regarding preventing relapses, hospitalizations, and treatment adherence. However, on closer inspection, LAIs appeared slightly more effective for specific groups in the early stages of schizophrenia. Conclusion: While LAIs and regular antipsychotic pills showed similar results for most individuals in the early stages of schizophrenia, our findings hint at the possibility that LAIs might have a slight edge for certain groups. Nevertheless, we emphasize the need for more high-quality studies to gain a clearer understanding. Registration: This study is registered under CRD42023407120 (PROSPERO).

Long-acting injectable (LAI) antipsychotics are often used for the long-term management also of bipolar disorder (BD). Nonetheless, evidence on their effect on pragmatic outcomes such as hospitalization risk in BD is inconsistent. We carried out a mirror-image study comparing rates and number of days of hospitalization, one year before and after the initiation of LAI treatment, in a sample of subjects with BD. Participants were selected from the STAR Network Depot Study, a pragmatic, observational, multicenter research involving a cohort of inpatients and outpatients consecutively started on LAI treatment. Variations in rates and in total number of days of hospitalization between the 12 months before and those after treatment initiation were analyzed. Among 461 individuals screened for eligibility, we included 71 adults with BD, initiated either on first- (FGA) or second-generation (SGA) LAIs. We found a significant decrease in terms of 12-month hospitalization rates (p < 0.001) and number of days (p < 0.001) after LAI initiation, without any effect by age, gender, alcohol/substance use disorders, and symptom severity. Subgroup analyses based on antipsychotic class, history of LAI treatment, and concomitant oral medications, confirmed the decreasing trend on both hospitalization rates and number of days. However, these reductions were not significant among participants who continued this treatment for less than 6 months. Comprehensively, this study supports the role of LAIs as effective maintenance treatment options for BD. Further research is needed to identify clinical characteristics of people with BD who would most benefit from long-acting formulations of antipsychotics.