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Table 4 Summary of characteristics identified from included studies reporting PSP score

From: Characteristics of patients with schizophrenia switching from oral antipsychotics to once-monthly paliperidone palmitate (PP1M): a systematic review

Subgroup factors

Stratification factor

Study ID

Study design

Sample size

PSP score (mean ± SD)

Prior treatment with OAP

Risperidone (RIS)

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

191

Baseline: 57.8 ± 12.3; Endpoint: 68.2 ± 13.9; Change: 10.4 ± 13.8

Si 2016 [45]

Pre-post trial (NCT01685931)

263

Baseline: 45.0 ± 13.6; Change: 19.5 ± 15.9

Sliwa 2011 [29]

Post hoc RCT (NCT00590577)

106

Baseline: 50.76 ± 12.05; Change: 11.70 ± 16.96

Olanzapine (OLA)

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

87

Baseline: 61.5 ± 14.6; Endpoint: 66.0 ± 17.7; Change: 4.5 ± 15.9

Si 2016 [45]

Pre-post trial (NCT01685931)

52

Baseline: 43.8 ± 14.2; Change: 17.1 ± 17.2

Aripiprazole (ARI)

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

46

Baseline: 58.9 ± 13.4; Endpoint: 62.9 ± 15.2; Change: 3.9 ± 13.2

Paliperidone

Magliocco 2020 [40]

Observational study

12

Baseline: 46.75 ± 10.50; Endpoint-Mean: 59.75

Paliperidone extended-release (Pali ER)

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

104

Baseline: 58.3 ± 13.7; Endpoint: 65.4 ± 16.4; Change: 7.0 ± 13.8

Quetiapine (QUE)

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

44

Baseline: 56.3 ± 12.0; Endpoint: 64.2 ± 15.9; Change: 7.9 ± 12.4

Other (chlorpromazine, haloperidol, penfluridol, perphenazine, sulpiride, aripiprazole, ziprasidone, amisulpride, quetiapine fumarate, amisulpride, clozapine)

Si 2016 [45]

Pre-post trial (NCT01685931)

293

Baseline: 44.9 ± 13.6; Change: 19.6 ± 16.5

Ethnicity

Asia-Pacific region patients

Zhang 2015 [49]

Pre-post trial (NCT01051531)

516

Baseline: 58.5 ± 16.18; Change: 10.5 ± 19.55

Asian patients

Li 2016 [37]

Observational study

212

Baseline: 42.81 ± 13.07; Change: 18.86 ± 17.48

Li 2016 [49]

Pre-post trial (NCT01527305)

212

Baseline: 42.83 ± 13.11; Change: 18.88 ± 16.66

Li 2016 [38]

Pre-post trial (NCT01527305)

212

Baseline: 42.8 ± 13.14; Change: 18.8 ± 17.56

Chinese Patients

Zhang 2015 [46]

Pre-post trial (NCT01051531)

108

Baseline: 53.8 ± 16.03; Change: 15.9 ± 19.65

Si 2016 [45]

Pre-post trial (NCT01685931)

608

Baseline: 44.85 ± 13.62; Change: 19.34 ± 16.26

Stage of disease

Acute Patients

Li 2016 [37]

Observational study

212

Baseline: 42.81 ± 13.07; Change: 18.86 ± 17.48

Li 2016 [49]

Pre-post trial (NCT01527305)

212

Baseline: 42.83 ± 13.11; Change: 18.88 ± 16.66

Li 2016 [38]

Observational study

212

Baseline: 42.8 ± 13.14; Change: 18.8 ± 17.56

Schreiner 2014 [36]

Pre-post trial (NCT01281527)

212

Baseline: 43.9 ± 15.0; LOCF Endpoint: 62.9 ± 17.1; Change: 19.0 ± 18.7

Si 2016 [45]

Pre-post trial (NCT01685931)

608

Baseline: 44.85 ± 13.62; Change: 19.34 ± 16.26

Sliwa 2011 [29]

Post hoc RCT (NCT00590577)

106

Baseline: 50.76 ± 12.05; Change: 11.70 ± 16.96

Stable Patients

Bozzatello 2018 [34]

RCT (ACTRN12618001113246)

33

Baseline: 52.81 ± 6.82; Endpoint: 65.22 ± 9.64

Schreiner 2014 [44]

Pre-post trial (NCT01281527)

472

Baseline: 58.56 ± 13.06; Endpoint: 66.28 ± 15.43; Change: 7.70 ± 13.94

Schreiner 2014 [35]

Pre-post trial (NCT01281527)

589

Baseline-Mean: 58.11; Endpoint-Mean: 66.06

Schreiner 2014 [43]

Pre-post trial (NCT01281527)

593

Baseline: 58.1 ± 13.4; LOCF Endpoint: 66.1 ± 15.7

Duration of illness (DI)

DI ≤ 3 years

Kim 2021 [6]

Observational study

240

All three groups showed significant improvements in PSP scores after the treatment with Paliperidone LAI and patients with DI less than 3 years demonstrated the highest PSP scores (DI, p<0.001; DI*week, p=0.436; week, p<0.001) *.

3 < DI ≤10 years

Kim 2021 [6]

Observational study

442

DI > 10 years

Kim 2021 [6]

Observational study

484

≤5 years

Li 2016 [47]

Pre-post trial (NCT01527305)

88

Baseline: 42.6 ± 13.13; Change: 25.4 ± 16.22*

Zhang 2015 [49]

Pre-post trial (NCT01051531)

516

Baseline: 58.5 ± 16.18; Change: 10.5 ± 19.55

>5 years

Li 2016 [47]

Pre-post trial (NCT01527305)

124

Baseline: 43.0 ± 13.21; Change: 14.4 ± 17.11*

≤3 years

Schreiner 2014 [35]

Pre-post trial (NCT01281527)

231

Baseline-Mean: 59.2; Endpoint-Mean: 67.7

>3 years

Schreiner 2014 [35]

Pre-post trial (NCT01281527)

358

Baseline-Mean: 57.4; Endpoint-Mean: 65.0

Reason for switching PP1M

Switched for Lack of Efficacy

Schreiner 2014 [43]

Pre-post trial (NCT01281527)

144

Change: 5.5 ± 12.3*;LOCF Baseline: 55.3 ± 12.3

Switched for Other Reasons

Schreiner 2014 [43]

Pre-post trial (NCT01281527)

449

Change: 8.8 ± 14.4*;LOCF Baseline: 59.0 ± 13.6

Time of start injection of PP1M

≤1 week

Li 2016 [37]

Observational study

121

Baseline: 43.8 ± 12.27; Change: 19.8 ± 16.50*

>1 week

Li 2016 [37]

Observational study

91

Baseline: 41.5 ± 14.19; Change: 17.6 ± 18.89*

History of hospitalization

≥1

Li 2016 [37]

Observational study

212

Baseline: 42.81 ± 13.07; Change: 18.86 ± 17.48

PANSS total score at baseline

Continuous measures

Li 2018 [24]

Pre-post trial (Multivariate analysis)

NR

PSP>70: Odds Ratio (95%CI): 0.97 (0.96-0.99), p= 0.0102*

PSP total score at baseline

Continuous measures

Li 2018 [24]

Pre-post trial (Multivariate analysis)

NR

PSP>70: Odds Ratio (95%CI): 1.07 (1.05-1.10), p<0.0001*

  1. LOCF Last observation carried forward, NR Not reported, OAP Oral antipsychotic, PSP Personal and Social Performance, PP1M Once-monthly paliperidone palmitate, RCT Randomised controlled trial
  2. *statistically significant difference between groups within the same study, p≤0.05