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Study of the Efficacy of Sulforaphane in Children Aged 6 to 12 With Attention Deficit Disorder With or Without Hyperactivity (SulfoTDAH)

4 novembre 2026 mis à jour par: Assistance Publique - Hôpitaux de Paris

ADHD is a neurodevelopmental disorder. It is the most common neurodevelopmental disorder in children and adolescents. Its prevalence is estimated at 5.9% in this population. The symptoms of ADHD combine attention deficit with behavioural disorders such as hyperactivity and impulsivity. Current treatment for ADHD is based on psychotherapeutic and psychoeducational measures aimed at improving behaviour and its impact on the family, social and school environment. Drug treatments may also be used, depending on the impact of the disorder and the effectiveness of alternative treatments. Psychostimulants such as amphetamine derivatives and methylphenidate are around 80% effective.

Sulforaphane is an active substance derived from broccoli that has already been tested in the treatment of other neurodevelopmental disorders. The main hypothesis is that sulforaphane is effective in treating the symptoms of Attention Deficit Disorder with or without Hyperactivity (ADHD) in children.

Aperçu de l'étude

Statut

Recrutement

Description détaillée

This is a randomised controlled trial with a double-blind control group. The aim is to test the efficacy of Sulforaphane versus placebo by comparing these two groups with a 1:1 ratio.

The primary objective is to evaluate the efficacy of sulforaphane treatment versus placebo on the total inattention and hyperactivity/impulsivity score measured by the ADHD-RS scale (parents) at 8 weeks in children aged 6 to 12 years suffering from ADHD.

The primary endpoint was the ADHD-RS parent inattention and hyperactivity/impulsivity score at 8 weeks.

Secondary objectives:

To assess the efficacy of sulforaphane treatment versus placebo at 2, 4 and 8 weeks in children aged 6-12 years with ADHD on:

  • Inattention and hyperactivity/impulsivity symptoms assessed by parents using the ADHD-RS;
  • Social interactions using the SRS scale (Social Responsiveness Scale);
  • Emotional dysregulation using the SDQ (Strength and Difficulties Questionnaire);
  • Global functioning using the CGI-S (Clinical Global Impression - Severity) and the CGI-I (Clinical Global Impression - Improvement).

To assess the effect of treatment with sulforaphane versus placebo on attention and inhibition at 4 and 8 weeks: using a specific neuropsychological assessment: CPT (Continuous Performance Test); symptoms of inattention and hyperactivity/impulsivity assessed by the teacher using the ADHD-RS self-questionnaire. Differences in behaviour may be observed depending on the context (school versus family). It is therefore important to have 2 sources of information for the ADHD-RS questionnaire: the parents and the teacher.

To assess the tolerability of treatment with sulforaphane from a clinical point of view (use of a PAERS (Paediatrician Adverse Events Rating Scale) and a biological point of view (blood count, AST, ALT, total and conjugated bilirubin, blood ionogram, urea, creatininemia, T4, TSH).

The subgroup of patients included in the Robert Debré Hospital will have a High Resolution Electroencephalogram (HR-EEG) in order to study the electroencephalographic markers of response to treatment with sulforaphane.

An interview to assess interest in and satisfaction with the treatment will be conducted with the parents (Robert Debré) and the child in the month following the end of the study as part of a qualitative study.

Type d'étude

Interventionnel

Inscription (Estimé)

70

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

      • Paris, France, 75019
        • Recrutement
        • Robert Debre Hospital
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

6 ans à 12 ans (Enfant)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Children aged 6 to 12
  • Diagnosis of ADHD according to DSM-5 criteria (Diagnostic and Statistical Manual of Mental Disorders)
  • Followed or hospitalised in an investigating centre
  • Consent of holders of parental authority
  • Patient covered by health insurance (social security or CMU)
  • Patients able to swallow capsules

Exclusion Criteria:

  • Allergy to broccoli
  • Psychotropic treatment including methylphenidate in the month prior to inclusion
  • Ongoing psychotherapeutic and/or psycho-educational treatment specific to ADHD
  • ASD (Autism Spectrum Disorder) according to DSM-5 criteria, intellectual disability (IQ< 80)
  • Chronic neurological disease, epilepsy
  • Holders of parental authority under guardianship or curatorship
  • Previous intake of sulforaphane
  • Known hypothyroidism or current thyroid treatment
  • Participation in other interventional research involving the human person or being within the exclusion period following previous research involving the human person, where applicable
  • Patient under AME (state medical aid)

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Sulforaphane

Prostaphane® is a dietary supplement based on SULFODYNE®, a broccoli seed extract standardised in free, stabilised sulforaphane.

Patients will receive treatment for 8 weeks at the following dosage:

  • 1 capsule/day up to 50 kg,
  • 2 capsules/day from 50.1 to 90 kg;
  • 3 capsules/day above 90 kg,

Each capsule contains 10mg of Sulforaphane.

taken once a day (one to three capsules a day depending on the patient's weight) for 8 weeks of Sulforaphane

Comparateur placebo: Placebo

Patients will receive treatment for 8 weeks at the following dosage:

  • 1 capsule/day up to 50 kg,
  • 2 capsules/day from 50.1 to 90 kg;
  • 3 capsules/day above 90 kg,

Each capsule contains placebo.

taken once a day (one to three capsules a day depending on the patient's weight) for 8 weeks of placebo

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Inattention scores in ADHD-RS parents
Délai: 8 weeks

Inattention scores in ADHD-RS (Attention Deficit Hyperactivity Disorder Rating Scale) parents

8 weeks
Hyperactivity/impulsivity scores in ADHD-RS parents
Délai: 8 weeks

Hyperactivity/impulsivity scores in ADHD-RS (Attention Deficit Hyperactivity Disorder Rating Scale) parents

8 weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Inattention scores in ADHD-RS parents
Délai: 2, 4 and 12 weeks

Inattention scores in ADHD-RS (Attention Deficit Hyperactivity Disorder Rating Scale) parents

2, 4 and 12 weeks
Hyperactivity/impulsivity scores in ADHD-RS parents
Délai: 2, 4 and 12 weeks

Hyperactivity/impulsivity scores in ADHD-RS (Attention Deficit Hyperactivity Disorder Rating Scale) parents

2, 4 and 12 weeks
Social Responsiveness Scale (SRS) scores and sub-scores
Délai: 4, 8 and 12 weeks

Social Responsiveness Scale (SRS) scores and sub-scores

4, 8 and 12 weeks
Strength and Difficulties Questionnaire (SDQ) emotional dysregulation sub-score
Délai: 2, 4, 8 and 12 weeks

Strength and Difficulties Questionnaire (SDQ) emotional dysregulation sub-score

2, 4, 8 and 12 weeks
Sustained attention and inhibition scores in the CPT (Continuous Performance Test)
Délai: 4 and 8 weeks

Sustained attention and inhibition scores in the CPT (Continuous Performance Test)

4 and 8 weeks
CGI-S (Clinical Global Impression - Severity) score
Délai: 4 and 8 weeks

CGI-S (Clinical Global Impression - Severity) score

4 and 8 weeks
CGI-I (Clinical Global Impression - Improvement) score
Délai: 4 and 8 weeks

CGI-I (Clinical Global Impression - Improvement) score

4 and 8 weeks
ADHD-RS teacher inattention and hyperactivity/impulsivity scores
Délai: 4 and 8 weeks

ADHD-RS teacher inattention and hyperactivity/impulsivity scores

4 and 8 weeks
tolerance of treatment: Adverse events score: PAERS (Paediatrician Adverse Events Rating Scale)
Délai: 4 and 8 weeks

tolerance of treatment: Adverse events score: PAERS (Paediatrician Adverse Events Rating Scale)

4 and 8 weeks
tolerance of treatment: Blood sample: Blood count
Délai: 8 weeks

tolerance of treatment: Blood sample: Blood count

8 weeks
tolerance of treatment: Blood sample: ASAT (Aspartate aminotransferase)
Délai: 8 weeks

tolerance of treatment: Blood sample: ASAT (Aspartate aminotransferase)

8 weeks
tolerance of treatment: Blood sample: ALAT (Alanin aminotransferase)
Délai: 8 weeks

tolerance of treatment: Blood sample: ALAT (Alanin aminotransferase)

8 weeks
tolerance of treatment: Blood sample: total bilirubin
Délai: 8 weeks

tolerance of treatment: Blood sample: total bilirubin

8 weeks
tolerance of treatment: Blood sample: conjugated bilirubin
Délai: 8 weeks

tolerance of treatment: Blood sample: conjugated bilirubin

8 weeks
tolerance of treatment: Blood sample: ionogram
Délai: 8 weeks

tolerance of treatment: Blood sample: ionogram

8 weeks
tolerance of treatment: Blood sample: urea
Délai: 8 weeks

tolerance of treatment: Blood sample: urea

8 weeks
tolerance of treatment: Blood sample: creatinine
Délai: 8 weeks

tolerance of treatment: Blood sample: creatinine

8 weeks
tolerance of treatment: Blood sample: T4
Délai: 8 weeks

tolerance of treatment: Blood sample: T4

8 weeks
tolerance of treatment: Blood sample: TSH
Délai: 8 weeks

tolerance of treatment: Blood sample: TSH

8 weeks
Robert Debré patients: EEG-HR (High Resolution Electroencephalogram)
Délai: 4 and 8 weeks

the criterion used will be the theta-beta ratio.

4 and 8 weeks
Robert Debré patients: qualitative study:
Délai: one month post treatment

The exploration criterion will be an in-depth description of the experience of the families and the child with regard to treatment with sulforaphane (interest and satisfaction).

one month post treatment

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

1 décembre 2024

Achèvement primaire (Estimé)

1 août 2027

Achèvement de l'étude (Estimé)

1 septembre 2027

Dates d'inscription aux études

Première soumission

30 août 2024

Première soumission répondant aux critères de contrôle qualité

10 septembre 2024

Première publication (Réel)

19 septembre 2024

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

4 novembre 2026

Dernière vérification

1 novembre 2026

Plus d'information

Termes liés à cette étude

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Informations sur les médicaments et les dispositifs, documents d'étude

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