Publications by authors named "J B Zantvoord"

Objective: Selective serotonin reuptake inhibitors (SSRIs) are the first choice in pharmacotherapy for children and adolescents with obsessive-compulsive disorder (OCD). SSRI-trials for pediatric OCD have never been investigated using individual participant data (IPD), which is crucial for detecting patient-level effect modifiers. Here, we performed an IPD meta-analysis on the efficacy of SSRIs compared to placebo, and a meta-regression on baseline patient characteristics which might modify efficacy.

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Evidence suggests a worse clinical course in women compared to men with bipolar disorder. However, little research has explored gender differences in the efficacy of anti-manic medication. We sought to determine whether there are gender differences in efficacy of drug treatment in acute manic episodes of bipolar I disorder, and the influence of dichotomized age as a proxy for menopausal status and baseline severity on gender differences.

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Objective: To examine whether patients with obsessive-compulsive disorder (OCD) are adequately treated with pharmacotherapy before referral to a specialized center for OCD.

Methods: We performed a retrospective chart review of patients with OCD who were seen for intake at an academic outpatient center in The Netherlands between 2016 and 2023. We collected data on age, gender, illness severity using the Yale-Brown Obsessive-Compulsive Scale, duration of illness, comorbidity and past pharmacotherapy and psychotherapy.

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Article Synopsis
  • * The case of a patient with clozapine-resistant schizophrenia highlights the differing views of caregivers and physician-researchers regarding the patient's decision-making capacity and the complexities surrounding it.
  • * To improve research quality and inclusivity, it is crucial to enhance assessment tools, encourage inclusive participation, and support patient representation in decision-making.
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Background: The change in symptoms necessary to be clinically relevant in obsessive-compulsive disorder (OCD) is currently unknown. In this study, we aimed to create an empirically validated threshold for clinical significance or minimal important difference (MID).

Methods: We analyzed individual participant data from short-term, double-blind, placebo-controlled registration trials of selective serotonin reuptake inhibitors in adult OCD patients.

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