scholarly journals Paliperidone 3-Month Injection for Treatment of Schizophrenia: A Narrative Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Amber N. Edinoff ◽  
Prithvi K. Doppalapudi ◽  
Claudia Orellana ◽  
Caroline Ochoa ◽  
Shelby Patti ◽  
...  
Keyword(s):  
Dose Interval ◽  
Paliperidone Palmitate ◽  
Critical Determinant ◽  
Once Daily ◽  
Schizophrenic Patients ◽  
Long Acting ◽  
Post Hoc ◽  
Antipsychotic Drug Treatment ◽  
Economic And Social Impacts ◽  
Risk Of Relapse

Given the typical age onset of schizophrenia, there are tremendous economic and social impacts that extend beyond the person and their families. One critical determinant of the diseases' impact is the patient's adherence to antipsychotic drug treatment. Approved in 2015 for the treatment of schizophrenia, paliperidone palmitate (Invega Trinza, a 3-month injection, noted as PP3M) is a second-generation long-acting injectable antipsychotic medication. Among the different formulations offered for palmitate paliperidone, including the 1 and 3-month formulations, the longer duration 3-month formulation was better at preventing relapse in schizophrenic patients. To date, different formulations of palmitate paliperidone that have been studied on relapse episodes of schizophrenia include once-daily extended-release oral paliperidone (ORAL paliperidone), once-monthly paliperidone palmitate (PP1M), and once-every-3-months paliperidone palmitate (PP3M). Post-hoc analyses show that patients who were withdrawn from PP1M paliperidone had the least risk of relapse, followed by patients withdrawn from PP3M and patients withdrawn from ORAL paliperidone. PP3M was better at preventing relapse compared to ORAL paliperidone. The results demonstrated that 50% of patients who were withdrawn from ORAL paliperidone, PP1M, or PP3M remained relapse-free for ~2, 6, and 13 months, respectively. Compared to PP1M, PP3M is just as safe and effective and has the added advantage of increased adherence related to a longer dose interval, decreasing the risk of relapse.

Discontinuation and relapse with paliperidone palmitate three-monthly for maintenance of schizophrenia: Two year follow-up of use in clinical practice

2021 ◽  
pp. 026988112110097
Author(s):  
Phoebe Wallman ◽  
Ivana Clark ◽  
David Taylor
Keyword(s):  
Clinical Practice ◽  
Treatment Duration ◽  
Maintenance Treatment ◽  
Clinical Care ◽  
Paliperidone Palmitate ◽  
Reduce Risk ◽  
Patient Refusal ◽  
Long Acting ◽  
Post Hoc

Background: The use of antipsychotic long-acting injections (LAI) aims to reduce risk of relapse and hospitalisation in patients with schizophrenia compared with oral medication. Paliperidone palmitate is currently the only LAI that can be administered at three-monthly intervals for maintenance treatment of schizophrenia. Aim: This prospective study aimed to evaluate relapse and continuation in licensed use of paliperidone palmitate three-monthly (PP3M) over a 2-year follow-up in clinical practice. Method: Non-interventional, observational study of patients treated in the South London and The Maudsley NHS Foundation Trust. Results: A total of 166 patients initiated on PP3M, 55 were excluded from the study (non-F20 diagnosis ( n = 43); F20 >65 years old ( n = 12)). Of the 111 patients included, 67 (60%) continued PP3M for 2 years. Overall 102 patients received more than one dose of PP3M and 92 (90%) remained on the same dose of PP3M for the whole of their treatment duration. Relapse (defined as a step-up in clinical care) occurred in eight patients (7%) while on PP3M. The most common reason for discontinuation was patient refusal and the most frequent medication prescribed after discontinuation was paliperidone palmitate one-monthly (PP1M). Post hoc, we analysed outcome in those continuing any form of PPLAI (those continuing with PP3M and those switching back to PP1M). Continuation over 2 years with any PPLAI formulation was 73% (81/111) and relapse was recorded in 9% (10/111). Conclusion: Overall, PP3M was an effective maintenance treatment for schizophrenia after stabilisation on PP1M in a clinical setting.

scholarly journals Impact of paliperidone palmitate one-month formulation on relapse prevention in patients with schizophrenia: A post-hoc analysis of a one-year, open-label study stratified by medication adherence

2018 ◽  
Vol 32 (6) ◽  
pp. 691-701 ◽  
Author(s):  
Tianmei Si ◽  
Nan Li ◽  
Huafei Lu ◽  
Shangli Cai ◽  
Jianmin Zhuo ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Hazard Ratio ◽  
Paliperidone Palmitate ◽  
Open Label ◽  
First Relapse ◽  
Continued Use ◽  
One Year ◽  
Long Acting ◽  
Post Hoc

Background: Limited data are available to help identify patients with schizophrenia who are most likely to benefit from long-acting injectable antipsychotics. Aim: To investigate the efficacy of long-acting injectable antipsychotic paliperidone palmitate one-month formulation for preventing relapses, factors influencing time to first relapse, and the effect of different antipsychotic adherence levels on time to first relapse in Chinese patients with schizophrenia. Methods: This was a post-hoc analysis from an open-label, single-arm study of stable patients (Positive and Negative Syndrome Scale total score <70; n=367) receiving paliperidone palmitate one-month formulation at the end of an acute 13-week treatment phase, who entered a naturalistic one-year follow-up period, either continuing with flexibly dosed paliperidone palmitate one-month formulation (75–150 mg eq.) or switching to another antipsychotic(s). Results: There were 362/367 patients (age=31.4±10.75 years) included in the analysis of time to first relapse (primary outcome) and 327/362 patients (39/327, poor antipsychotic adherence (<80%)) willing to receive antipsychotics were included in the exposure/adherence analysis. Overall, 84.6% (95% confidence interval=79.2–88.7) patients remained relapse-free. Poor adherence during follow-up (hazard ratio=2.97, 95% confidence interval=1.48–5.98, p=0.002) and frequent hospitalizations in the previous year (hazard ratio=1.29, 95% confidence interval=1.02–1.62, p=0.03) were associated with a significant risk of shorter time to first relapse in the univariate analysis. In patients with poor adherence, ‘no use’ (hazard ratio=13.13, 95% confidence interval=1.33–129.96, p=0.03) and ‘interrupted use’ (hazard ratio=11.04, 95% confidence interval=1.03–118.60, p=0.047) of paliperidone palmitate one-month formulation (vs continued use) showed a significantly higher risk of relapse; this was not observed in patients with good (≥80%) antipsychotic adherence. No new safety concerns were identified. Conclusion: Continued use of paliperidone palmitate one-month formulation/long-acting injectable antipsychotic was effective in preventing schizophrenia relapses, especially in patients with suboptimal antipsychotic adherence.

scholarly journals Accidental Overdose of Paliperidone Palmitate

2019 ◽  
Vol 2019 ◽  
pp. 1-3 ◽  
Author(s):  
Chiedozie Ojimba ◽  
Ayotomide Oyelakin ◽  
Taher Khandaker
Keyword(s):  
Side Effects ◽  
Plasma Level ◽  
Standard Dose ◽  
Selective Mutism ◽  
Paliperidone Palmitate ◽  
Receptor Sites ◽  
Schizophrenic Patients ◽  
Therapeutic Plasma Level ◽  
Disorganized Speech ◽  
Long Acting

Long-acting injectable (LAI) antipsychotics first introduced in 1960s are useful in the treatment of schizophrenic patients with poor medication adherence due to their maintaining feature of therapeutic plasma level without daily administration. Paliperidone Palmitate is one of such LAI antipsychotic drugs used due to its benefit of maintaining a therapeutic plasma level with four-week interval of injections. We report the case of a 21-year-old male with a history of mental illness that presented with selective mutism, disorganized speech, thought process and behavior, and auditory hallucinations who accidentally received 624 mg Paliperidone Palmitate intramuscularly with no reported side effects after 2 weeks of monitoring and observation. Paliperidone is a D2, 5HT2A receptor antagonist with additional antagonist activity at α-1 and α-2, H-1 receptor sites, and four metabolic pathways identified for its metabolism. Studies have reported adverse effects such as acute dystonia, acute renal failure, and cardiovascular abnormalities with Paliperidone overdose; however there is no reported literature on Paliperidone Palmitate overdose, though there have been reported cases of Paliperidone Palmitate side effects of hypersexuality and angioedema with the standard dose.

Sign in / Sign up

Export Citation Format

Share Document