Trial Outcomes & Findings for Oral Versus Injectable Risperidone for Treating First-Episode Schizophrenia (NCT NCT00330551)

NCT ID: NCT00330551

Last Updated: 2023-03-01

Results Overview

Dichotomous measure: Presence of any of three psychotic relapse or exacerbation categories scored from the Brief Psychiatric Rating Scale (BPRS) occurring any time after randomization and until end of study participation (up to 12 mos.).

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

126 participants

Primary outcome timeframe

Occurrence after randomization and until end of study participation (up to 12 mos.)

Results posted on

2023-03-01

Participant Flow

Of the 126 eligible and enrolled participants, 43 dropped out prior to the start of randomized treatment, resulting in 83 randomized.

Participant milestones

Participant milestones
Measure
Long-acting Injectable Risperidone
Participants taking risperidone, administered in injectable long-acting form (Risperdal Consta), plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
Participants taking daily oral risperidone, plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Oral Risperidone: Daily oral risperidone dosage will determined by treating psychiatrist.
Overall Study
STARTED
40
43
Overall Study
COMPLETED
30
27
Overall Study
NOT COMPLETED
10
16

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Oral Versus Injectable Risperidone for Treating First-Episode Schizophrenia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Long-acting Injectable Risperidone
n=40 Participants
Participants taking risperidone, administered in injectable long-acting form (Risperdal Consta), plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 Participants
Participants taking daily oral risperidone, plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Oral Risperidone: Daily oral risperidone dosage will determined by treating psychiatrist.
Total
n=83 Participants
Total of all reporting groups
Age, Categorical
<=18 years
3 Participants
n=5 Participants
9 Participants
n=7 Participants
12 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
37 Participants
n=5 Participants
34 Participants
n=7 Participants
71 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
21.9 years
STANDARD_DEVIATION 3.8 • n=5 Participants
21.1 years
STANDARD_DEVIATION 3.2 • n=7 Participants
21.5 years
STANDARD_DEVIATION 3.5 • n=5 Participants
Sex: Female, Male
Female
9 Participants
n=5 Participants
9 Participants
n=7 Participants
18 Participants
n=5 Participants
Sex: Female, Male
Male
31 Participants
n=5 Participants
34 Participants
n=7 Participants
65 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
15 Participants
n=5 Participants
20 Participants
n=7 Participants
35 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
25 Participants
n=5 Participants
23 Participants
n=7 Participants
48 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
Asian
5 Participants
n=5 Participants
4 Participants
n=7 Participants
9 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
14 Participants
n=5 Participants
9 Participants
n=7 Participants
23 Participants
n=5 Participants
Race (NIH/OMB)
White
18 Participants
n=5 Participants
23 Participants
n=7 Participants
41 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
40 participants
n=5 Participants
43 participants
n=7 Participants
83 participants
n=5 Participants

PRIMARY outcome

Timeframe: Measured weekly throughout study participation, averaged over study participation

5-point scale (1 = best adherence, 5= nonadherent) based on pill counts, MEMS cap readings, plasma assays, and psychiatrist judgments for oral risperidone and timing of injections for long-acting injectable risperidone averaged over study participation

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=40 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Medication Adherence
1.1 units on a scale
Standard Deviation 0.5
1.9 units on a scale
Standard Deviation 0.8

PRIMARY outcome

Timeframe: Occurrence after randomization and until end of study participation (up to 12 mos.)

Population: All participants randomized to long-acting injectable or oral risperidone

Dichotomous measure: Presence of any of three psychotic relapse or exacerbation categories scored from the Brief Psychiatric Rating Scale (BPRS) occurring any time after randomization and until end of study participation (up to 12 mos.).

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=40 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Number of Participants Who Had an Exacerbation or Relapse of Psychotic Symptoms
2 Participants
14 Participants

PRIMARY outcome

Timeframe: Measured from Baseline to Month 12

Population: All participants with data regarding return to work or school

The Social Adjustment Scale records the return to work or school and the number of weeks in work or school during each 3-month period. For this outcome, outcome as dichotomized as 0 if an individual did not return to work or school and 1 if they did return to competitive work or regular school enrollment.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=37 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=38 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Number of Participants Who Returned to Work or School (SAS Work Section)
29 Participants
29 Participants

PRIMARY outcome

Timeframe: Cumulative total measured from Baseline to Month 12

Population: All participants with data on duration of work or school

Measured as the number of weeks in which a participant has competitive employment or attends regular school courses. Possible range is 0 to 52 weeks.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=37 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=41 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Number of Weeks Maintaining Work or School (SAS)
26.7 weeks
Standard Deviation 20.4
21.1 weeks
Standard Deviation 18.0

PRIMARY outcome

Timeframe: Measured at Baseline and Month 12

Population: All participants with Global Functioning Scale: Role ratings at baseline and 12 months

10-point scale of work/school functioning. Scale range is from 1 (extreme role dysfunction) to 10 (superior role functioning). Measured by subtracting the baseline rating from the rating at 12 months.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=29 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=30 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Change in Global Functioning Scale: Role
1.5 Changes on a 10-point scale
Standard Deviation 2.7
1.2 Changes on a 10-point scale
Standard Deviation 3.0

SECONDARY outcome

Timeframe: Measured at baseline and 12 months

Population: All participants with MCCB Overall Composite scores at baseline and 12 months

The MCCB Overall Composite T score is computed by the MCCB Computer Scoring Program from the raw scores for 10 individual cognitive tests. The mean for the general population of comparable age and sex is 50 with a standard deviation of 10. Higher scores indicate better cognitive functioning. The outcome measure was the change from baseline to 12 months, calculated as 12-month T score minus baseline T score. Higher values indicate better outcome.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=29 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=32 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
MATRICS Consensus Cognitive Battery (MCCB) Overall Composite T Score
3.5 Change score: change in T scores
Standard Deviation 7.5
4.4 Change score: change in T scores
Standard Deviation 5.0

SECONDARY outcome

Timeframe: Measured from Baseline to Month 12

Population: No data were available because this part of the initial proposal was not funded.

Electrodermal reactivity to pictures of negative versus neutral stimuli was the initially proposed measure. Larger skin conductance increases in response to negative pictures compared to neutral pictures would indicate stronger emotional reactivity.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: From baseline to 12 months

Population: All participants randomized to oral vs. long-acting injectable risperidone

Number of days on the randomized medication before being switched to a different antipsychotic medication or dropping out of the medication trial. Possible range is 0 to 365, with higher numbers indicating better retention in treatment.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=40 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Retention in Treatment
307.6 days
Standard Deviation 108.3
270.7 days
Standard Deviation 126.4

SECONDARY outcome

Timeframe: Baseline to 12 months

Population: All participants with ratings at baseline and 12 months, with 6-month rating carried forward if no 12-month rating was completed.

Rating scale based on clinician's interview of patient to determine level of lack of awareness of having a mental disorder. Range is from 1 (Aware) to 5 (Unaware), so lower scores indicate better outcome.

Outcome measures

Outcome measures
Measure
Long-acting Injectable Risperidone
n=30 Participants
Participants who are randomly assigned to this arm will be administered the long-acting injectable form of risperidone (Risperdal Consta) every two weeks, plus group skills training and case management, for 12 months. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone (Risperidone in Long-Acting Injectable Form (Consta)) once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=34 Participants
Participants who are randomly assigned to this arm will be treated with the oral version of risperidone (Risperdal) daily, plus group skills training and case management, for 12 months. Oral Risperidone: Patients will be treated with oral risperidone daily, with the dosage determined by treating psychiatrist.
Awareness of Illness, as Assessed by the Scale to Assess Unawareness of Mental Disorder-Revised (SUMD-R)
.07 Change scores on 5-point rating scale
Standard Deviation 1.34
-.24 Change scores on 5-point rating scale
Standard Deviation 1.56

Adverse Events

Long-acting Injectible Risperidone

Serious events: 2 serious events
Other events: 11 other events
Deaths: 0 deaths

Oral Risperidone

Serious events: 8 serious events
Other events: 19 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Long-acting Injectible Risperidone
n=40 participants at risk
Participants taking risperidone, administered in injectible long-acting form (Risperdal Consta), plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 participants at risk
Participants taking daily oral risperidone, plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Oral Risperidone: Daily oral risperidone dosage will determined by treating psychiatrist.
Psychiatric disorders
psychiatric hospitalization
5.0%
2/40 • Number of events 2
18.6%
8/43 • Number of events 8

Other adverse events

Other adverse events
Measure
Long-acting Injectible Risperidone
n=40 participants at risk
Participants taking risperidone, administered in injectible long-acting form (Risperdal Consta), plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Risperidone in Long-Acting Injectable Form (Consta): Participants will take a 25 mg dosage of injectable risperidone once every 2 weeks. Dosage will be adjusted if needed.
Oral Risperidone
n=43 participants at risk
Participants taking daily oral risperidone, plus group skills training and case management Group Skills Training and Psychoeducation: Group skills training sessions will be weekly throughout the study. The sessions will include group therapy meetings focused on everyday living skills, family education about schizophrenia, assessments of medication response, and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms. Individual Case Management: An individual therapist will provide therapy focused on everyday life skills and aid in interfacing with community agencies, work, and/or school settings. Oral Risperidone: Daily oral risperidone dosage will determined by treating psychiatrist.
Metabolism and nutrition disorders
BMI increase from normal or overweight to Obese
17.5%
7/40 • Number of events 7
11.6%
5/43 • Number of events 5
Vascular disorders
Lipid Increase
5.0%
2/40 • Number of events 2
20.9%
9/43 • Number of events 9
Nervous system disorders
Tardive Dyskinesia
5.0%
2/40 • Number of events 2
7.0%
3/43 • Number of events 3
Endocrine disorders
Prolactin related
7.5%
3/40 • Number of events 3
9.3%
4/43 • Number of events 4

Additional Information

Keith Nuechterlein, PhD

University of California, Los Angeles

Phone: (310) 825-0036

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place