Comparative efficacy, tolerability, and acceptability of pharmacological interventions for the treatment of children, adolescents, and young adults with Tourette's syndrome: a systematic review and network meta-analysis

Comparative efficacy, tolerability, and acceptability of pharmacological interventions for the treatment of children, adolescents, and young adults with Tourette's syndrome: a systematic review and network meta-analysis

Forfattere
Farhat, L. C. Behling, E. Landeros-Weisenberger, A. Levine, J. L. S. Macul Ferreira de Barros, P. Wang, Z. Bloch, M. H.
Årstall
2022
Tidsskrift
The Lancet Child & Adolescent Health
Volum
14
Sider
14
BACKGROUND In clinical practice guidelines there is no consensus about the medications that should be initially offered to children and young people with Tourette's syndrome. To provide a rigorous evidence base that could help guide decision making and guideline development, we aimed to compare the efficacy, tolerability, and acceptability of pharmacological interventions for Tourette's syndrome. METHODS For this systematic review and network meta-analysis, we searched the Cochrane Central Register of Controlled Trials, Embase, PsycINFO, PubMed, Web of Science, the WHO International Clinical Trials Registry Platform, and ClinicalTrials.gov, for published and unpublished studies from database inception to Nov 19, 2021. We included double-blind randomised controlled trials of any medication administered as a monotherapy for at least 1 week against another medication or placebo in children and adolescents (aged >=4 years and <=18 years), adults (>18 years), or both, diagnosed with Tourette's syndrome according to standardised criteria. We excluded studies that exclusively recruited participants with comorbid attention-deficit hyperactivity disorder or obsessive-compulsive disorder. The primary outcome was change in severity of tic symptoms (efficacy). Secondary outcomes were treatment discontinuations due to adverse events (tolerability) and for any reason (acceptability). Pharmacological interventions were examined considering medication categories and medications individually in separate analyses. Summary data were extracted and pooled with a random-effects network meta-analysis to calculate standardised mean differences for efficacy and odds ratios for tolerability and acceptability, with 95% CIs. The Confidence in Network Meta-Analysis (CINeMA) framework was used to assess the certainty of evidence. The protocol was pre-registered in PROSPERO (CRD42022296975). FINDINGS Of the 12 088 records identified through the database search, 88 records representing 39 randomised controlled trials were included in the network meta-analysis; these 39 randomised controlled trials comprised 4578 participants (mean age 11.8 [SD 4.5] years; 3676 [80.8%] male participants) and evaluated 23 individual medications distributed across six medication categories. When considering medication categories, first-generation (standardised mean difference [SMD] -0.65 [95% CI -0.79 to -0.51]; low certainty of evidence) and second-generation (-0.71 [-0.88 to -0.54]; moderate certainty of evidence) antipsychotic drugs, as well as alpha-2 agonists (-0.21 [-0.39 to -0.03]; moderate certainty of evidence), were more efficacious than placebo. First-generation and second-generation antipsychotic drugs did not differ from each other (SMD 0.06 [95% CI -0.14 to 0.25]; low certainty of evidence). However, both first-generation (SMD 0.44 [95% CI 0.21 to 0.66]) and second-generation (0.49 [0.25 to 0.74]) antipsychotic drugs outperformed alpha-2 agonists, with moderate certainty of evidence. Similar findings were observed when individual medications were considered: aripiprazole (SMD -0.60 [95% CI -0.83 to -0.38]), haloperidol (-0.51 [-0.88 to -0.14]), olanzapine (-0.83 [-1.49 to -0.18]), pimozide (-0.48 [-0.84 to -0.12]), risperidone (-0.66 [-0.98 to -0.34]), and clonidine (-0.20 [-0.37 to -0.02]) all outperformed placebo, with moderate certainty of evidence. Antipsychotic medications did not differ from each other, but there was low to very low certainty of evidence for these comparisons. However, aripiprazole (SMD -0.40 [95% CI -0.69 to -0.12]) and risperidone (-0.46 [-0.82 to -0.11]) outperformed clonidine, with moderate certainty of evidence. Heterogeneity or inconsistency only emerged for a few comparisons. In terms of tolerability and acceptability, there were no relevant findings for any of the efficacious medication categories or individual medications against each other or placebo, but there was low to very low certainty of evidence associated with these comparisons. INTERPRETATION Our analyses show that antipsychotic drugs are the most efficacious intervention for Tourette's syndrome, while alpha-2 agonists are also more efficacious than placebo and could be chosen by those who elect not to take antipsychotic drugs. Shared decision making about the degree of tic-related severity and distress or impairment, the trade-offs of efficacy and safety between antipsychotic drugs and alpha-2 agonists, and other highly relevant individual factors that could not be addressed in the present analysis, should guide the choice of medication for children and young people with Tourette's syndrome. FUNDING None.

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Tiltaksnivå

Behandling og hjelpetiltak

Tema

Psykiske vansker og lidelser

Andre problemer

Tics og Tourettes

Tiltak

Medikamentell behandling

Antipsykotisk medisin

Aldersgruppe

Barn i skolealder (6-12 år)

Ungdom (13-18 år)

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