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Drug Therapy01:28

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The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
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Psychosis: Goals of Pharmacotherapy01:26

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Psychological and Sociocultural Causes of Schizophrenia01:29

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Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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Related Experiment Video

Updated: Sep 10, 2025

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Sample Ascertainment and Recruitment Sources in the Accelerating Medicines Partnership Schizophrenia Program.

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  • 1Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4Z6, Canada.

Schizophrenia Bulletin Open
|August 27, 2025
PubMed
Summary

Self-referral is the primary recruitment source for clinical high-risk (CHR) and community controls (CC) in the Accelerating Medicines Partnership Schizophrenia (AMP SCZ) program. Understanding these diverse recruitment channels is key for future schizophrenia research.

Keywords:
AMP SCZascertainmentclinical high riskcommunity controlspsychosisrecruitment

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Area of Science:

  • Psychiatry
  • Neuroscience
  • Clinical Psychology

Background:

  • The Accelerating Medicines Partnership Schizophrenia (AMP SCZ) program aims to investigate clinical variables and biomarkers in individuals at clinical high-risk (CHR) for psychosis and community controls (CC).
  • The study involved a large cohort of 2040 CHR and 652 CC participants.

Purpose of the Study:

  • To identify and analyze the diverse recruitment sources utilized for the AMP SCZ program.
  • To understand the characteristics of participants based on their recruitment pathways.
  • To inform future strategies for recruiting participants in psychosis research.

Main Methods:

  • Data on recruitment sources were available for 1640 CHR and 514 CC participants.
  • Participants were assessed using the Positive Symptoms and Diagnostic Criteria for the Comprehensive Assessment of At-Risk Mental States Harmonized with the SIPS (SIPS) for CHR criteria and attenuated psychotic symptoms (APSs).
  • Social functioning was measured using the Global Functioning: Social Scale.

Main Results:

  • Self-referral was the most common recruitment source for both CHR and CC participants across 13 identified sources.
  • Participants recruited via self-referral were generally older, with less severe APS and higher social functioning compared to other groups.
  • Individuals recruited from adult community mental health services exhibited poorer functioning and more severe APS.

Conclusions:

  • The study highlights the significant role of self-referral, particularly in North America, potentially reflecting evolving help-seeking behaviors influenced by digital media.
  • Understanding the patterns and characteristics associated with different recruitment sources is crucial for optimizing participant recruitment in future CHR and schizophrenia studies.
  • Regional variations in recruitment strategies were observed, emphasizing the need for tailored approaches in global research initiatives.