Trial reportJournal of psychopharmacology (Oxford, England)2018
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.
Trial report in Journal of psychopharmacology (Oxford, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Characteristics of patients with schizophrenia switching from oral antipsychotics to once-monthly paliperidone palmitate (PP1M): a systematic review.BMC psychiatry · 2024Pooled it
- An exploratory study on the impact of medication usage patterns on relapse among community schizophrenia patients.BMC psychiatry · 2026Article
- Efficacy of paliperidone palmitate once-monthly (PP1M) in improving social functioning and reducing caregiver burden in patients with schizophrenia: a six-month follow-up study.BMC psychiatry · 2025Article
- Effect of long-acting injectable antipsychotics on treatment adherence and healthcare utilization in Chinese patients with schizophrenia: a mirror-image study.Therapeutic advances in psychopharmacology · 2025Article
- Budget impact of introducing once-every-6-months paliperidone palmitate in US health care plans.Journal of managed care & specialty pharmacy · 2023Article
- Long-Acting Injectable Antipsychotic Treatment for Schizophrenia in Asian Population: A Scoping Review.Neuropsychiatric disease and treatment · 2023Article
- Results from PSIPROSPER: A multicenter retrospective study to analyze the impact of treatment with paliperidone palmitate 1-month on clinical outcomes and hospital resource utilization in adult patients with schizophrenia in Portugal.Frontiers in psychiatry · 2022Article
- Projecting the Long-Term Economic Impact of Once-Monthly Paliperidone Palmitate Versus Oral Atypical Antipsychotics in Medicaid Patients with Schizophrenia.Journal of managed care & specialty pharmacy · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLimited data are available to help identify patients with schizophrenia who are most likely to benefit from long-acting injectable antipsychotics.
aimTo 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.
methodsThis 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).
resultsThere 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.
conclusionContinued use of paliperidone palmitate one-month formulation/long-acting injectable antipsychotic was effective in preventing schizophrenia relapses, especially in patients with suboptimal antipsychotic adherence.
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