Antipsychotic Treatment Research Articles

Differential impact of intermittent versus continuous treatment with clozapine on fatty acid metabolism in the brain of an MK-801-induced mouse model of schizophrenia

Continuous antipsychotic treatment is often recommended to prevent relapse in schizophrenia. However, the efficacy of antipsychotic treatment appears to diminish in patients with relapsed schizophrenia and the underlying mechanisms are still unknown. Moreover, though the findings are inconclusive, several recent studies suggest that intermittent versus continuous treatment may not significantly differ in recurrence risk and therapeutic efficacy but potentially reduce the drug dose and side effects. Notably, disturbances in fatty acid (FA) metabolism are linked to the onset/relapse of schizophrenia, and patients with multi-episode schizophrenia have been reported to have reduced FA biosynthesis. We thus utilized an MK-801-induced animal model of schizophrenia to evaluate whether two treatment strategies of clozapine would affect drug response and FA metabolism differently in the brain. Schizophrenia-related behaviors were assessed through open field test (OFT) and prepulse inhibition (PPI) test, and FA profiles of prefrontal cortex (PFC) and hippocampus were analyzed by gas chromatography–mass spectrometry. Additionally, we measured gene expression levels of enzymes involved in FA synthesis. Both intermittent and continuous clozapine treatment reversed hypermotion and deficits in PPI in mice. Continuous treatment decreased total polyunsaturated fatty acids (PUFAs), saturated fatty acids (SFAs) and FAs in the PFC, whereas the intermittent administration increased n-6 PUFAs, SFAs and FAs compared to continuous administration. Meanwhile, continuous treatment reduced the expression of Fads1 and Elovl2, while intermittent treatment significantly upregulated them. This study discloses the novel findings that there was no significant difference in clozapine efficacy between continuous and intermittent administration, but intermittent treatment showed certain protective effects on phospholipid metabolism in the PFC.

Rapid Metabolism Underlying Subtherapeutic Serum Levels of Atypical Antipsychotics Preceding Clozapine Treatment: A Retrospective Analysis of Real-World Data.

Adequate antipsychotic treatment intensity is required before diagnosing resistant schizophrenia and initiating clozapine treatment. We aimed to investigate potential rapid drug metabolism underlying low dose-adjusted serum concentration (CD) of non-clozapine atypical antipsychotics preceding clozapine treatment. Patients using non-clozapine, atypical antipsychotics (aripiprazole, risperidone, olanzapine, or quetiapine) within 1 year before starting clozapine were included in this study from a therapeutic drug monitoring service in Oslo, Norway, between 2005 and 2023. Patients were assigned into low CD (LCD) and normal CD (NCD) subgroups. Using a reference sample with 147,964 antipsychotic measurements, LCD was defined as CDs below the 25th percentile, while patients with NCD exhibited CDs between the 25th and 75th percentile of the respective reference measurements. Metabolic ratios, doses, and frequency of subtherapeutic levels of non-clozapine antipsychotics were compared between LCD and NCD groups. Preceding clozapine treatment, 110 out of 272 included patients (40.4%) were identified with LCD. Compared with the NCD group, LCD patients exhibited higher metabolic ratios of olanzapine (1.5-fold; p < 0.001), quetiapine (3.0-fold; p < 0.001), and risperidone (6.0-fold; p < 0.001). Metabolic ratio differences were independent of smoking and CYP2D6 genotype for olanzapine (p = 0.008) and risperidone (p = 0.016), respectively. Despite higher doses of olanzapine (1.25-fold; p = 0.054) and quetiapine (1.6-fold; p = 0.001) in LCD versus NCD patients, faster metabolism among the former was accompanied by higher frequencies of subtherapeutic levels of olanzapine (3.3-fold; p = 0.044) and quetiapine (1.8-fold; p = 0.005). LCD and associated rapid metabolism of non-clozapine antipsychotics is frequent before starting clozapine treatment. For olanzapine and quetiapine, this is associated with significantly increased risk of having subtherapeutic concentrations.

Aripiprazole-induced quasi-neuroleptic malignant syndrome: two case reports

BackgroundSignificant elevation of creatine kinase levels (above three digits) and leucocytosis in the absence of muscle rigidity, tremors, or autonomic dysfunction can pose a real challenge in the context of antipsychotic treatment as an early herald of neuroleptic malignant syndrome.Case presentationWe present here two cases of adult male patients of Black British heritage, ages 51 years and 28 years, respectively. Both received a diagnosis of schizoaffective disorder and presented with massive increase of creatine kinase blood level after aripiprazole depot administration, one with pernicious increase associated with silent neuroleptic malignant syndrome, and the second with asymptomatic benign enzyme elevation.ConclusionThough aripiprazole use is less likely to cause neuroleptic malignant syndrome, on rare occasions it can produce massive symptomatic or asymptomatic increase in serum creatine kinase enzyme levels, raising the need for close monitoring, especially at the initial doses of the drug.

A systematic review of pharmacogenetic testing to guide antipsychotic treatment

Pharmacogenomics could optimize antipsychotic treatment by preventing adverse drug reactions, improving treatment efficacy or relieving the cost burden on the healthcare system. Here we conducted a systematic review to investigate whether pharmacogenetic testing in individuals undergoing antipsychotic treatment influences clinical or economic outcomes. On 12 January 2024, we searched MEDLINE, EMBASE, PsycINFO and Cochrane Centrale Register of Controlled Trials. The results were summarized using a narrative approach and summary tables. In total, 13 studies were eligible for inclusion in the systematic review. The current evidence base is either in favor of pharmacogenetics-guided prescribing or showed no difference between pharmacogenetics and treatment as usual for clinical and economic outcomes. In the future, we require randomized controlled trials with sufficient sample sizes that provide recommendations for patients who take antipsychotics based on a broad, multigene panel, with consistent and comparable clinical outcomes.

Central Neuromodulators in Irritable Bowel Syndrome: Why, How, and When.

Irritable bowel syndrome (IBS) is responsive to treatments using central neuromodulators. Central neuromodulators work by enhancing the synaptic transmission of 5-hydroxytryptamine, noradrenalin, and dopamine, achieving a slower regulation or desensitization of their postsynaptic receptors. Central neuromodulators act on receptors along the brain-gut axis, so they are useful in treating psychiatric comorbidities, modifying gut motility, improving central downregulation of visceral signals, and enhancing neurogenesis in patients with IBS. Choosing a central neuromodulator for treating IBS should be according to the pharmacological properties and predominant symptoms. The first-line treatment for pain management in IBS is using tricyclic antidepressants. An alternative for pain management is the serotonin and noradrenaline reuptake inhibitors. Selective serotonin reuptake inhibitors are useful when symptoms of anxiety and hypervigilance are dominant but are not helpful for treating abdominal pain. The predominant bowel habit is helpful when choosing a neuromodulator to treat IBS; selective serotonin reuptake inhibitors help constipation, not pain, but may cause diarrhea; tricyclic antidepressants help diarrhea but may cause constipation. A clinical response may occur in 6-8 weeks, but long-term treatment (usually 6-12 months) is required after the initial response to prevent relapse. Augmentation therapy may be beneficial when the therapeutic effect of the first agent is incomplete or associated with side effects. It is recommended to reduce the dose of the first agent and add a second complementary treatment. This may include an atypical antipsychotic or brain-gut behavioral treatment. When tapering central neuromodulators, the dose should be reduced slowly over 4 weeks but may take longer when discontinuation effects occur.

Finding meaning in medication.

The author reflects on a decade of antipsychotic treatment, providing an intimate glimpse into living with schizophrenia. Their narrative unravels the balance of vulnerability and strength, coercion, and dialogue inherent in the acceptance of medication. Their journey from defiance to adherence showcases the profound complexities patients face and the ethical dilemmas confronting caregivers. Interactions with loved ones and mentors underscore the importance of a shared decision-making approach. The author emphasizes not just the significance of medication but the broader, holistic perspective of aligning treatment with one's life goals and values. Their story champions the power of lived experiences, aiming to inspire a more empathetic and collaborative approach to antipsychotic treatment. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Continuous oral olanzapine or clozapine treatment initiated in adolescence has differential short- and long-term impacts on antipsychotic sensitivity than those initiated in adulthood

One of the major discoveries in recent research on antipsychotic drugs is that antipsychotic treatment in adolescence could induce robust long-term alterations in antipsychotic sensitivity that persist into adulthood. These long-term impacts are likely influenced by various factors, including the “diseased” state of animals, sex, type of drugs, mode of drug administration, and age of treatment onset. In this study we compared the short- and long-term behavioral effects of 21-day continuous oral olanzapine (7.5 mg/kg/day) or clozapine (30.0 mg/kg/day) administration in heathy or maternal immune activated adolescent (33–53 days old) or adult (80–100 days old) rats of both sexes. We used a conditioned avoidance response model to assess the drug-induced alterations in antipsychotic sensitivity. Here, we report that while under the chronic drug treatment period, olanzapine progressively increased its suppression of avoidance responding over time, especially when treatment was initiated in adulthood. Clozapine's suppression depended on the age of drug exposure, with treatment initiated in adulthood showing a suppression while that initiated in adolescent did not. After a 17-day drug-free interval, in a drug challenge test, olanzapine treatment initiated in adolescence caused a decrease in drug sensitivity, as reflected by less avoidance suppression (a tolerance effect); whereas that initiated in adulthood appeared to cause an increase (more avoidance suppression, a sensitization effect). Clozapine treatments initiated in both adolescence and adulthood caused a similar tolerance effect. Our findings indicate that the same chronic antipsychotic treatment regimen initiated in adolescence or adulthood can have differential short- and long-term impacts on drug sensitivity.

Awakening on antipsychotic medication: A call to action.

Explore a lived experience perspective on using antipsychotic medicine and call to action for psychiatric rehabilitation practitioners to get involved in preparing people diagnosed with serious mental illness (SMI) to have a voice and choice in antipsychotic medication treatment. A first-person account of awakening on an antipsychotic medication for the first time is used to understand the lived experience and challenges of using it. Lessons learned are amplified through de-identified queries of the CommonGround database capturing concerns about antipsychotic medication of people diagnosed with SMI in public sector mental health clinics in the United States. Lived experience of "me-on-medicine" included embodied and perceptual changes to self when taking antipsychotic medications. Discordance between the team's goal and personal goals for medication treatment interfered with recovery. Analysis of more than 100,000 concerns about antipsychotic medications expressed by 57,370 CommonGround users showed the most frequent concerns are that medication is perceived as unhelpful (21%), side effects (13%), impact on health (12%), and concerns about feeling unmotivated to use medication (8%). Among CommonGround users below age 30, low motivation to take antipsychotics was the third most prevalent concern. Among CommonGround users over age 30, concerns about the impact on health were the third most dominant. Psychiatric rehabilitation practitioners can support people diagnosed with SMI getting prepared to participate in decision making about antipsychotic medications with psychiatric care providers by identifying concerns and building skills and strategies to negotiate the new "me-on-medicine." (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Análisis de Reacciones Adversas a Medicamentos por fármacos antipsicóticos en un instituto de salud mexicano

Introduction: Adverse Drug Reactions (ADR) are unwanted clinical or laboratory manifestations that are related to drug use. ADR are common and are associated with significant risk of morbidity, mortality and hospital admissions. Antipsychotics have a reduced therapeutic window, and have been related to the manifestation of a variety of ADR. Objective: To evaluate the pattern of ADRs due to antipsychotic drugs detected in patients treated at the Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz between December 2021 and May 2022. Methods: Observational, descriptive, prospective and cross-sectional study of a series of cases. The seriousness, severity, and quality of the information in the notification of the ADR were defined in accordance with NOM-220-SSA1-2016, Installation and Operation of Pharmacovigilance, while causality was determined using the Naranjo algorithm. Results: The incidence of ADRs was 59%, with one or more ADR detected in 52 of the 88 patients who were receiving antipsychotic treatment during the study period. Forty-five percent of the ADR had probable causality and 55% possible; only three ADR were classified as serious as they prolonged the hospital stay and endangered the patient's life. Conclusions: The ADR of the gastrointestinal and endocrine systems were the most incidental, with hyperprolactinemia being the most frequent. Olanzapine and clozapine were the medications that caused the most ADR. It is recommended to promote the culture of notification and follow-up of ADR caused by antipsychotic drugs.

Evaluation of Relationship of Neutrophil/Lymphocyte, Platelet/Lymphocyte, Monocyte/Lymphocyte Monocyte/HDL Ratios and Systemic Immune Inflammatory Index Value with Antipsychotic Treatments in Schizophrenic Patients

IntroductionThere are studies showing that the systemic inflammation response in patients diagnosed with schizophrenia is different from healty controls. Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (TLR), monocyte-lymphocyte ratio (MLR), monocyte-HDL ratio (MHO) and systemic immune inflammation index (SII) have recently been used as inflammation indicators.ObjectivesNLR, TLR, MLR, MHO and SII have been evaluated in many studies in schizophrenia patients. The aim of our study is to evaluate the relationship between NLR, TLR, MLR, MHO, SII values and antipsychotic treatments of patients diagnosed with schizophrenia.Methods203 individuals diagnosed with schizophrenia who were followed up in the psychotic disorders outpatient clinic of Selçuk University Faculty of Medicine were included in the study. Neutrophil, lymphocyte, platelet and monocyte counts and HDL values were obtained retrospectively from blood tests. NLR, TLR, MLO, MHO and SII were calculated. The study approved by the ethics committee of Selçuk University Faculty of Medicine.Results45.3% of the patients were female (n = 92); the mean age was 45.8±14.0. The average number of hospitalizations was 3.0±2.7 years; the mean disease duration was 17.0±9.6 years. 56.7% (n=115) use long-acting antipsychotic treatment, 21% (n=43) use monthly paliperidone long-acting (PP1M) treatment, and 14.8% (n=30) use 3-month paliperidone long-acting (PP3M) treatment. No significant difference was observed in NLR, TLR, MLR, MHO and SII values between individuals using and not using long-acting antipsychotics. However, a significant difference in NLR value was observed between PP1M and PP3M treatment (p = 0.039). Oral antipsychotic use was 71% (n=137), 19% (n=38) used clozapine monotherapy, and 25% (n=51) used non-clozapine oral monotherapy. No significant difference was detected in inflammatory markers between clozapine monotherapy and other oral monotherapies.ConclusionsAccording to our findings, NLR levels in patients diagnosed with schizophrenia were found to be significantly higher in those using PP1M treatment compared to those using PP3M. This finding can be interpreted in favor of the fact that PP3M contributes to the reduction of inflammation due to its longer duration of action compared to PP1M. It is thought that schizophrenia progresses through inflammatory processes and antipsychotic treatments play a role in anti-inflammation. It is envisaged that future studies may be helpful in evaluating the onset, exacerbation and remission periods of the disease, including treatment doses and durations, and revealing the relationship between inflammatory markers and schizophrenia disease and the effects of antipsychotic treatments on inflammatory markers such as NLR, TLR, MLR, MHO and SII.Disclosure of InterestNone Declared

New role of platelets in schizophrenia: predicting drug response

BackgroundElevated platelet count (PLTc) is associated with first-episode schizophrenia and adverse outcomes in individuals with precursory psychosis. However, the impact of antipsychotic medications on PLTc and its association with symptom...

Schizoaffective Disorder and Parkinson’s Disease: a case report

IntroductionWe present the case of a patient with schizoaffective disorder and Parkinson’s disease (PD), requiring treatment adjustment, with the use of high doses of quetiapine for the treatment of psychotic symptomatology.ObjectivesThe aim is to briefly review the treatment of dopaminergic psychosis in the elderly.Methods Patient aged 86 years, institutionalised, presenting severe episodes of behavioural alteration, high anxiety and delusions of harm, together with auditory and visual hallucinations. As relevant physical history, the patient has AHT, aortic insufficiency, and bladder cancer operated on in 2012. As psychiatric history of interest, the patient has been diagnosed since his 30s with schizoaffective disorder, Parkinson’s disease and moderate-severe cognitive impairment secondary to the previous two.As usual treatment, in addition to anticoagulation and antihypertensive therapy, the patient has been receiving L-dopa for his PD for years, antidepressant treatment with escitalopram 10mg, haloperidol 80 drops a day, divided into three doses, and lormetazepam 2mg as a hypnotic.In addition to the symptoms described above, the patient had episodes of confusional features, as well as marked stiffness in the cogwheel and significant gait disturbance, having suffered several falls without serious repercussions.Results Due to the comorbid neurological pathology, it was decided to progressively modify the treatment, withdrawing the benzodiazepine due to the risk of confusional disorder and replacing it with trazodone. Antipsychotic treatment was gradually replaced by extended-release quetiapine, reaching a maximum dose of 800mg. Likewise, escitalopram treatment is replaced by sertraline.With this adjustment, there was an improvement in the psychotic symptoms, as well as in the anxious symptoms. Episodes of distress are NOT observed, and the patient’s functionality improves, allowing him/her to participate in daily activities, both cognitive stimulation and physiotherapy.ConclusionsThe Spanish Society of Psychogeriatrics recommends that before using antipsychotics, it is advisable to first treat the underlying potentially treatable causes (pain, infections, toxic effects of drugs…), assess non-pharmacological interventions and always, if the use of antipsychotics is required, assess the risk-benefit ratio.In relation to the above, it is not surprising that in the elderly, the use of second-generation antipsychotics is recommended in the first place, as opposed to the classical ones. The latter are only recommended in emergency situations where an almost immediate effect is required.For dopaminergic psychosis, there are only controlled trials with clozapine. However, due to prescribing difficulties, aripiprazole or quetiapine is recommended in the first instance.Disclosure of InterestNone Declared

A Case of Severe Polyhydramnios During Pregnancy Associated with Long-Term Use of Lithium

IntroductionThe perinatal period poses heightened vulnerability to bipolar affective episodes. Lithium serves as first line in the management of bipolar disorder, demonstrating efficacy in stabilizing mood episodes and preventing relapses. Therefore, it also a recommended treatment during the pregnancy period. However, its use presents potential risks for both the mother and the developing fetus. Given the prevalence of bipolar disorder in reproductive-age women, it is crucial to investigate the risks associated with lithium use during pregnancy, along with its subsequent obstetric and neonatal complications.ObjectivesThis report outlines a case of severe polyhydramnios in a 42-year-old primigravida patient, under long-term lithium and antipsychotic treatment. Additionally, a systematic search for similar case reports was conducted to provide an overview of the existing literature.Methods The patient’s medical history and perinatal medical care are documented in this case report. A systematic literature search on MEDLINE (PubMed) was conducted using Boolean operators.ResultsThe patient was diagnosed with bipolar disorder type I and had a history of lithium treatment for over 20 years, supplemented later with antipsychotics. During her pregnancy, she experienced a polyuria-polydipsia syndrome and a severe polyhydramnios. She also suffered renal impairment. Together, it is indicative of a nephrogenic diabetes insipidus (NDI), likely induced by prolonged lithium treatment. As the pregnancy progressed, she experienced premature rupture of membranes at 34 weeks and 5 days. The newborn needed medical support and was admitted to the neonatal unit, without further complications.Systematic research showed three published case reports describing nephrogenic diabetes insipidus (NDI) and polyhydramnios associated to lithium treatment.ConclusionsChronic administration of lithium may contribute to the development of resistance to antidiuretic hormone (ADH), leading to polyuria-polydipsia syndrome and potentially severe obstetric complications. The co-administration of lithium and antipsychotics may exacerbate these effects. Further research is needed to elucidate their combined clinical impacts.Disclosure of InterestNone Declared

Clozapine and the Risk of Severe COVID-19: A Retrospective Cohort Study

IntroductionClozapine is the standard treatment for managing treatment-resistant schizophrenia (TRS). However, concerns arise due to potential hematologic side effects, such as agranulocytosis, especially during the COVID-19 pandemic.ObjectivesThis study aims to investigate the association between clozapine treatment and an increased risk of severe COVID-19 infection in patients with TRS.MethodsA retrospective study reviewed clinical records of forensic patients with TRS from 2020 to 2022 at Razi Hospital’s forensic psychiatry department in Tunisia. Twenty-five patients, including 18 on clozapine treatment, were included.Results All patients were male, with an average age of 39.7 years. Twenty-three patients received at least one vaccine dose. Twenty-two patients contracted COVID-19. Among those treated with clozapine, two required intensive care unit admission and oxygen therapy without intubation. Clozapine treatment remained uninterrupted, with no dose escalation during infection episodes. Lymphopenia was the most commonly reported hematologic abnormality.ConclusionsWhile there may be an association between clozapine use and an increased risk of COVID-19 infection, no clear correlation with infection severity and antipsychotic treatment was established in this study. Further research is needed to explore this potential association comprehensively.Disclosure of InterestNone Declared

The role of long-acting antipsychotics in illness relapse: an observational study

IntroductionIn patients affected by Schizophrenia and Bipolar Disorder disorders the use of antipsychotic drugs is essential in preventing the exacerbation of symptoms. The use of long-acting injectable (LAI) antipsychotics is considered an important treatment option. The aim of this study was to evaluate the incidence and predictors of relapse during antipsychotic treatment with LAIs in a sample of psychiatric outpatients up to a year after the start of long-acting therapy.ObjectivesThe study included 103 adult patients admitted to the psychiatric unit of Sant’Andrea University Hospital in Rome.MethodsWe evaluated duration of untreated illness, previous treatments, substance abuse, suicidal status, LAI dose, and use of other medicines for association with new episodes of illness or of symptomatic worsening as well as hospitalization, using bivariate and multivariate analyses.Results Seventy-three patients were diagnosed with schizophrenia spectrum and 30 with bipolar disorders. Age at study entry averaged 36.7 years (SD= 11.55). 40.8% of patients were women. The mean age at onset were 23.11 (SD= 7.0). All the other information were reported in Table 1. On 103 patients undergoing with LAI treatment for a year only 9 (8.7%) patients had a relapse during the study period. The two groups differed according to the presence of hospitalization during the 12 months before the LAI treatment (p = .022), in particular patients with relapse were more hospitalized than patients with no relapse (62.5% vs. 21.7%). Moreover, group with relapse were more at risk of suicide during the 12 months before the LAI treatment than the other group, for both suicidal ideation (11.1% vs. 4.3%; p= .015) and attempt (25.0% vs. 3.2%; p= .049). Finally, the two groups differed according to the side effects reported during the year of LAI treatment (χ² =38.48; p&lt; .001). Specifically, patients’ group with relapse reported more side effects caused by parkinsonism (25.0% vs. 1.1%) and tremor (25.0% vs. 0%). No differences were found for the other variables (See table 1).Image:ConclusionsIn conclusion, our observations confirm the importance of LAI therapy in real word. However, our results indicate that these drugs might not prevent subsequent exacerbations for a proportion of individuals whose illness is stabilised on continuous antipsychotic treatment. Extra pyramidal symptoms in particular might have pathophysiological implications for relapse.Disclosure of InterestNone Declared

Initiation of Paliperidone palmitate 3-monthly injectable in an acute inpatient psychiatric unit

Introduction The treatment of patients with severe psychotic disorders presents significant clinical challenges, and the choice of appropriate therapy is essential to ensure long-term stability1. In this context, long-acting injectable antipsychotics (LAIs) have emerged as a promising therapeutic option. LAIs were developed to counteract poor treatment adherence in patients with psychotic disorders2.Paliperidone palmitate 3-monthly injectable (PP3M) is a novel formulation of intramuscular injectable paliperidone palmitate with a significantly longer half-life than the once-monthly formulation.PP3M has shown a longer time to relapse and good safety and tolerability in many studies3.ObjectivesThe aim of this work was to describe the profile of patients initiating PP3M in an acute inpatient psychiatric unit.Methods A descriptive study was conducted on patients admitted to the acute psychiatric unit from January 2021 to December 2022. The sample included 23 inpatients who initiated PP3M during the admission. Data were collected regarding age, gender, diagnosis, substance abuse, previous antipsychotic treatment, antipsychotic treatment adherence and adverse effects during the admission.Results23 patients sample, with an average age of 44.04 years-old, 16 male and 7 female, diagnosed with psychotic disorder (22) and schizoaffective disorder (1). Out of the 23 patients, 7 had active substance abuse upon admission. Out of the total simple, 9 of them were prescribed LAIs, with 6 on PP1M (Paliperidone palmitate 1-monthly injectable), 2 on PP3M, and 1 on aripiprazole long-acting injection. Twelve were prescribed oral antipsychotics, including 4 on paliperidone, 4 on risperidone, 1 on aripiprazole, 1 on olanzapine, and 2 on other oral antipsychotics. Two patients did not have a previous antipsychotic prescription.Among the 23 patients, 17 of them did not have previous antipsychotic treatment adherence.5 out of the 23 patients experienced adverse effects, with 3 of them having extrapyramidal symptoms and 2 hyperprolactinemia.Upon discharge, 11 out of the 23 patients were prescribed antipsychotic monotherapy with PP3M.ConclusionsIn this sample, we observed that inpatients who initiated PP3M in an acute psychiatric unit were males, with psychotic disorders, lacked adherence to previous antipsychotic treatment. Most of them did not experience adverse effects with PP3M during admission.More research should be done to assess the use of PP3M in an acute inpatient psychiatric unit.REFERENCES1. Morris MT, Tarpada SP. Psychopharmacol Bull. 2017 May 15;47(2):42-52.2. Brasso, C., Bellino, S., Bozzatello, P., Montemagni, C., &amp; Rocca, P. (2017). Neuropsychiatric Disease and Treatment,3. Edinoff AN, Doppalapudi PK, Orellana C, Ochoa C, Patti S, Ghaffar Y, Cornett EM, Kaye AJ, Viswanath O, Urits I, Kaye AM, Kaye AD. Front Psychiatry. 2021.Disclosure of InterestNone Declared

The Dilemma of Lithium Discontinuation in Bipolar Disorder During Pregnancy Planning: A Case Report and Literature Review

IntroductionLithium is considered the gold standard mood stabiliser for bipolar disorder, yet its use during pregnancy remains controversial, demanding careful consideration of potential risks and benefits. Classically, it has been associated with an increased risk in congenital heart defects, however, recent studies point towards a much lower absolute risk than was previously believed. Furthermore, discontinuation of lithium before or during pregnancy poses a high risk of destabilisation and lithium has been shown to reduce the risk of relapse both in pregnancy and in the postpartum period. Hence, treatment planning is of the upmost importance in this patient group and individual risk stratification should be undertaken for patients to make informed decisions about their treatment.ObjectivesTo describe the case of a patient with bipolar disorder who discontinued lithium treatment while attempting to conceive and subsequently presented with a manic episode and to expand the scientific knowledge on this topic.MethodsCase report and brief literature review.Results A 41-year-old patient with a diagnosis of bipolar disorder, previously on lithium 900mg/day, was admitted to the emergency department with symptoms suggestive of a manic episode. One month prior, the patient had discontinued treatment with lithium due to her desire to pursue pregnancy and interrupt treatment while trying to conceive. The patient had a history of postpartum psychosis followed by various depressive and manic episodes with psychotic symptoms, leading to a bipolar disorder diagnosis and commencing treatment with lithium. Her consultant psychiatrist had informed her of the individualised risks of interrupting treatment with lithium and had advised to continue treatment alongside frequent follow-up due to the high-risk of relapse. Despite her consultant’s recommendation, she decided to interrupt treatment and hence a personalised lithium tapering regime and advice to continue treatment with quetiapine 200mg/day was given. During the ED stay, treatment with olanzapine was introduced which helped to stabilise her symptoms. Lithium levels were subtherapeutic (lithium serum level 0.11 mmol/L). Inpatient psychiatric admission was avoided due to rapid symptom improvement, strong social support in the community and her preference for ambulatory care. Lithium was gradually reintroduced and antipsychotic treatment was adjusted at follow up appointments, which ultimately led to the resolution of symptoms and stabilisation.ConclusionsThis case highlights the significance of considering continuing lithium treatment in bipolar disorder during pregnancy planning. Decisions about medication in pregnancy are multifaceted, making appropriate risk stratification imperative in order to inform individualised care plans to minimise the risk of relapse in these patients.Disclosure of InterestNone Declared

Outpatient Antipsychotic Use and Severe COVID-19: Avoiding the Impact of Age in a Real-World Data Study.

The association between use of antipsychotics and COVID-19 outcomes is inconsistent, which may be linked to use of these drugs in age-related diseases. Furthermore, there is little evidence regarding their effect in the nongeriatric population. We aim to assess the association between antipsychotic use and risk of disease progression and hospitalization due to COVID-19 among the general population, stratifying by age. We conducted a population-based, multiple case-control study to assess risk of hospitalization, with cases being patients with a PCR(+) test who required hospitalization and controls being individuals without a PCR(+) test; and risk of progression to hospitalization, with cases being the same as those used in the hospitalization substudy and controls being nonhospitalized PCR(+) patients. We calculated adjusted odds-ratios (aOR) and 95% confidence intervals (CI), both overall and stratified by age. Antipsychotic treatment in patients younger than 65 years was not associated with a higher risk of hospitalization due to COVID-19 (aOR 0.94 [95%CI = 0.69-1.27]) and disease progression among PCR(+) patients (aOR 0.96 [95%CI = 0.70-1.33]). For patients aged 65 years or older, however, there was a significant, increased risk of hospitalization (aOR 1.58 [95% CI = 1.38-1.80]) and disease progression (aOR 1.31 [95% CI = 1.12-1.55]). The results of our large-scale real-world data study suggest that antipsychotic use is not associated with a greater risk of hospitalization due to COVID-19 and progression to hospitalization among patients younger than 65 years. The effect found in the group aged 65 years or older might be associated with off-label use of antipsychotics.

Atypical psychosis in a patient with intracranial hypertension: clinical case and review

IntroductionSeveral neurologic conditions can produce or mimic psychotic symptoms. It is important to make an exhaustive differential diagnosis between a psychiatric manifestation of an underlying neurological condition and a primary psychiatric one. We explore through the present clinical case of a young woman admitted to neurology the relationship between intracranial hypertension and a case of atypical psychosis that resolved itself with the treatment of the intracranial hypertension, without the need for antipsychotic medication.ObjectivesTo explore through the presented clinical case and the concerning literature the concept and management of psychotic-like symptoms in patients with intracranial hypertension.MethodsWe present a clinical case and a review of the existing literature concerning atypical psychosis or psychosis-like symptoms in cases of intracranial hypertension.ResultsWe report the case of a 24 year old woman with no relevant medical history hospitalised in the neurology unit due to suspected encephalitis. Native to New Zealand, she is brought from the airport due to behavioural alterations. During the last few days before admission she had presented with incoherent speech, derailment, religious and persecutory delusions, and erotomania towards her cousin. She described feelings of strangeness with her surroundings and of time moving at a different speed than usual, either faster or slower. She also had a headache and visual alterations, as well as memory errors concerning recent events, clouding of consciousness and inattention.No fever or other relevant physical symptoms. A lumbar puncture is done, which shows an opening pressure of 37mmHg but no other anomalies. Body CT scan shows no relevant findings. Empirical treatment with dexamethasone is initiated for suspected encephalitis, progressively reducing the dosage until suspension in the following days. During her stay at the hospital she is assessed by ophthalmology, which finds no abnormalities in the eye fundus examination, and psychiatry. A second evacuating lumbar punture is done to reduce intracraneal hypertension. No antipsychotic treatment is initiated: the symptomatology remitted with the lowering of intracranial pressure. At time of discharge, the patient remained asymptomatic without treatment and was able to return home to continue outpatient neurologic study of the etiology of the intracranial hypertension.Finally, we conduct a review ot the existing literature concerning psychotic and psychosis-like symptoms in patients with intracranial hypertension, to explore the diagnostic and management options of this rare finding.ConclusionsOur findings point to the existing relationship between intracranial hypertension and psychosis-like symptoms. Further studies on pathogenic mechanisms and therapeutic management are required.Disclosure of InterestNone Declared

Deaths of patients diagnosed with psychotic disorder due to SARS Cov-2 in Avilés, Spain

IntroductionPsychotic patients are a vulnerable population from a social and health point of view. The SARS Cov-2 pandemic affected millions of people around the world, however, its effects on psychotic patients in Avilés Spain, have not been analized.ObjectivesThe objective of this study was to determine and compare the mortality of patients with psychosis due to SARS Cov-2 in Avilés, Spain with others regions and countries in the European Union. Determine the influence of social condition and antipsychotic treatment on the condition of these patients.MethodsThis is a descriptive, observational study, in which patients diagnosed with psychosis in the period 2020-2021 who contracted SARS Cov-2 infection in Avilés, Spain, were studied to determine those who died from this cause. The influence of social status and antipsychotic medication, as well as sociodemographic factors (age, sex, marital status) were analyzed and compared with other regions and countries of the European Union.ResultsDespite the high mortality rate in patients with psychosis, during the years of the pandemic SARS Cov-2 played an important role given the vulnerability of these patients.ConclusionsThe negative effects and deaths during the COVID-19 pandemic were at the time a major problem for public health worldwide. This study concluded that the morbidity and mortality of psychotic patients who contracted COVID-19 was lower than the rest of the population.Disclosure of InterestNone Declared