Prevention of relapses with levamisole as adjuvant therapy in children with a first episode of idiopathic nephrotic syndrome: study protocol for a double blind, randomised placebo-controlled trial (the LEARNS study).
BMJ Open
; 9(8): e027011, 2019 08 01.
Article
em En
| MEDLINE
| ID: mdl-31375606
ABSTRACT
INTRODUCTION:
Idiopathic nephrotic syndrome (INS) is characterised by a high relapse rate up to 80% after initial response to standard therapy with corticosteroids. Steroid toxicity is common and causes a great burden of disease that negatively influences the health-related quality of life (HRQoL). Recently, studies have shown that levamisole, an anthelminthic drug, significantly improves relapse-free survival in children with frequent relapses or steroid dependency. Compared with other steroid-sparing drugs, levamisole has relatively few side effects. We hypothesise that adding levamisole to standard therapy with corticosteroids in children with a first episode of INS will prevent relapses, decrease cumulative dosage of steroids used and improve HRQoL. This paper presents the study protocol for the LEARNS study (LEvamisole as Adjuvant therapy to Reduce relapses of Nephrotic Syndrome). METHODS ANDANALYSIS:
An international, double-blind, placebo-controlled randomised trial will be conducted in 20 participating hospitals in the Netherlands and Belgium. Participants (n=92) with a first episode of INS, aged 2-16 years, who achieve remission after 4 weeks of oral prednisolone will be randomly assigned (11) to receive either levamisole 2.5 mg/kg alternate day or placebo added to prednisolone (18-week tapering schedule) for a total of 24 weeks. Follow-up will be until 2 years after first presentation. Additionally, parents and/or children will fill out five HRQoL questionnaires. Primary outcome of the LEARNS study is occurrence of relapses within 12 months after first presentation. Secondary outcomes include time to first relapse, cumulative steroid dose after 2 years, safety parameters and quality of life scores. ETHICS AND DISSEMINATION The trial was approved by the Medical Ethical Committee. Results of the study will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER NL6826, 2017-001025-41.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ensaios Clínicos Controlados Aleatórios como Assunto
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Levamisol
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Síndrome Nefrótica
Tipo de estudo:
Clinical_trials
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Guideline
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Prognostic_studies
Aspecto:
Ethics
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Patient_preference
Limite:
Adolescent
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Child
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Child, preschool
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Humans
Idioma:
En
Revista:
BMJ Open
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Holanda