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Early Detection and Intervention for the Prevention of Psychosis

Early Detection and Intervention for the Prevention of Psychosis Project

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00531518
Acronym
EDIPP
Enrollment
292
Registered
2007-09-19
Start date
2007-10-31
Completion date
2013-09-30
Last updated
2016-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bipolar Disorder, Depression, Psychotic Disorders, Schizophrenia

Keywords

Schizophrenia, Bipolar disorder, Psychosis, Prodromal psychosis, Family psychoeducation, Supported education, Supported employment, Ulra-high-risk for psychosis, Major depression, Bipolar disorder, with psychotic features, Major depression, with psychotic features, Attenuated, prodromal psychotic symptoms

Brief summary

EDIPP is a multisite trial of early identification and intervention to prevent the onset of psychosis in adolescents and young adults, carried out at six sites across the United States. The hypothesis is that very early identification and intervention will be effective in delaying or preventing onset of psychosis and improving social and occupational functioning.

Detailed description

The study is structured as a cutoff, regression discontinuity design, in which lower risk-for-psychosis participants will not be treated by protocol but followed up for two years. Those at higher risk will be treated with anti-psychotic, antidepressant and mood stabilizing medications by symptom indications, and systematically provided psychoeducational multifamily group treatment, supported education and employment, and intensive clinical case management, using key elements of Assertive Community Treatment. Both arms of the study will be followed for two years and assessed at 6, 12, and 24 months. Outcome measures include rates of conversion to psychosis, relapse of psychosis, development of psychotic disorder diagnoses, levels of positive, negative and general symptoms, social and vocational functioning, family functioning, and neurocognitive functioning. The six sites include Sacramento, California; Salem Oregon; and surrounding counties, Ypsilanti and Washtenaw County, Michigan; Portland, Maine; Albuquerque, New Mexico and Glen Oaks, New York. In addition to symptomatic and functional outcomes, impact on incidence of psychotic disorders, including schizophrenia, will be assessed, as will cost-benefit effects.

Interventions

DRUGaripiprazole; fluoxetine; bupropion; sertraline; lamotrigine

Oral, daily, generally at lower than manufacturer's recommendations

BEHAVIORALPsychoeducational multifamily group treatment

Families and patients are educated on psychobiology of psychosis and trained in coping skills to avoid psychosis by reducing stress and optimizing social environment at home, school, work

BEHAVIORALSupported employment and education

Participants are provided direct assistance, guidance and ongoing support to gain employment and succeed in their educational goals.

Sponsors

Robert Wood Johnson Foundation
CollaboratorOTHER
MaineHealth
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
12 Years to 25 Years
Healthy volunteers
No

Inclusion criteria

* Subjects in the age range of 12-25 and living in the experimental catchment area may be enrolled in the EDIPP study based on meeting at least one of the inclusion requirements AND none of the

Exclusion criteria

; * Screening process indicates symptoms equivalent to a minimum rating of '1' on at least one positive symptom of psychosis; * Screening process indicates a likely family history of first degree relative with psychotic illness plus a deterioration in functioning equivalent to a 30% drop in functioning score over the past year; OR * Screening process indicates a likely history of schizotypal personality disorder plus a deterioration in functioning equivalent to a 30% drop in functioning over the past year.

Design outcomes

Primary

MeasureTime frameDescription
Psychotic Symptomstwo yearsPsychotic symptoms were assessed and scored using the Structured Interview for the Prodromal Syndrome (SIPS) and the Scale of Prodromal Symptoms (SOPS). The SOPS provides a measure of four domains of symptoms, including positive, negative, disorganized and general symptoms. The Positive Symptom sub-scale score reported is the sum of all five symptom items in the Positive Symptom sub-scale. The Positive Symptom sub-scale assesses psychotic symptoms, each item on a scale of 0-6. The sum scale score is 0-30, with 30 indicating severe psychotic symptoms, while 0 indicates no psychotic symptoms.

Countries

United States

Participant flow

Participants by arm

ArmCount
Control Group
This is the control arm. Participants will be offered only case management. Participants may seek outside treatment, without guidance from study staff.
87
Experimental Intervention
This is the experimental intervention arm for high-risk-for-psychosis participants. The intervention includes psychiatric drugs (aripiprazole; fluoxetine; bupropion; sertraline; lamotrigine), psychoeducational multifamily group treatment and supported employment and education . aripiprazole; fluoxetine; bupropion; sertraline; lamotrigine: Oral, daily, generally at lower than manufacturer's recommendations Psychoeducational multifamily group treatment: Families and patients are educated on psychobiology of psychosis and trained in coping skills to avoid psychosis by reducing stress and optimizing social environment at home, school, work Supported employment and education: Participants are provided direct assistance, guidance and ongoing support to gain employment and succeed in their educational goals.
205
Total292

Baseline characteristics

CharacteristicControl GroupExperimental InterventionTotal
Age, Continuous16.23 years
STANDARD_DEVIATION 3.18
16.40 years
STANDARD_DEVIATION 3.3
16.35 years
STANDARD_DEVIATION 3.26
Psychotic symptoms4.15 units on a scale
STANDARD_DEVIATION 1.76
11.99 units on a scale
STANDARD_DEVIATION 3.42
9.65 units on a scale
STANDARD_DEVIATION 4.69
Region of Enrollment
United States
87 participants205 participants292 participants
Sex: Female, Male
Female
26 Participants89 Participants115 Participants
Sex: Female, Male
Male
61 Participants116 Participants177 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
19 / 8751 / 205
serious
Total, serious adverse events
1 / 870 / 205

Outcome results

Primary

Psychotic Symptoms

Psychotic symptoms were assessed and scored using the Structured Interview for the Prodromal Syndrome (SIPS) and the Scale of Prodromal Symptoms (SOPS). The SOPS provides a measure of four domains of symptoms, including positive, negative, disorganized and general symptoms. The Positive Symptom sub-scale score reported is the sum of all five symptom items in the Positive Symptom sub-scale. The Positive Symptom sub-scale assesses psychotic symptoms, each item on a scale of 0-6. The sum scale score is 0-30, with 30 indicating severe psychotic symptoms, while 0 indicates no psychotic symptoms.

Time frame: two years

ArmMeasureValue (MEAN)Dispersion
ControlPsychotic Symptoms9.2 units on a scaleStandard Deviation 1
Family-aided Assertive Community TreatmentPsychotic Symptoms6.7 units on a scaleStandard Deviation 0.4
Comparison: The analysis used regression discontinuity methods, in which the baseline sum scores were adjusted and centered to an equalize control and experimental conditions.p-value: 0.0034Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026