- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT03848481
CBDV vs Placebo chez les enfants et les adultes jusqu'à 30 ans atteints du syndrome de Prader-Willi (PWS)
Cannabidivarine (CBDV) vs placebo chez les enfants et les adultes jusqu'à 30 ans atteints du syndrome de Prader-Willi (PWS)
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Réel)
Phase
- Phase 2
Contacts et emplacements
Lieux d'étude
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New York
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The Bronx, New York, États-Unis, 10467
- Montefiore Medical Center, Albert Einstein College of Medicine
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
La description
Critère d'intégration
- Patients ambulatoires masculins ou féminins âgés de 5 à 30 ans.
- Diagnostic de SPW confirmé par des tests génétiques et les dossiers médicaux et antécédents du patient.
- Interventions pharmacologiques, éducatives, comportementales et/ou diététiques stables pendant 4 semaines avant le début de l'étude et pendant toute la durée de l'étude.
- Avoir un examen physique et des résultats de laboratoire qui sont dans les normes pour le SPW
- Présence d'un parent/soignant/tuteur qui est en mesure de consentir à sa participation et aux évaluations complètes concernant le développement et le comportement du patient tout au long de l'étude. L'assentiment de l'enfant sera obtenu si le sujet est âgé de 7 ans ou plus et a la capacité mentale de comprendre et de signer un formulaire d'assentiment écrit et/ou de donner son assentiment verbal.
- Score sur l'échelle de sévérité de l'impression globale clinique (CGI-S) ≥ 4 (sévérité modérée) au départ.
- Score ≥ 18 sur la liste de contrôle des comportements aberrants - Irritabilité (ABC-I) au départ.
- Accepter de ne pas conduire ou utiliser de machines.
Critère d'exclusion
- Exposition à tout agent expérimental dans les 30 jours précédant la randomisation.
- Traitement chronique antérieur avec CBD ou CBDV.
- Test positif pour le THC ou d'autres drogues d'abus via des tests d'urine lors de la visite de dépistage ou des visites de référence lors des tests de confirmation répétés.
- Antécédents de trouble lié à l'abus de drogues, y compris trouble lié à l'usage de cannabis
- Un diagnostic psychiatrique principal autre que le SPW, y compris le trouble bipolaire, la psychose, la schizophrénie, le SSPT ou le TDM. Ces patients seront exclus en raison de résultats confusionnels potentiels.
- Une condition médicale qui affecte gravement la capacité du sujet à participer à l'étude, interfère avec la conduite de l'étude, confond l'interprétation des résultats de l'étude ou met en danger le bien-être du sujet (y compris, mais sans s'y limiter, l'insuffisance hépatique ou rénale et les maladies cardiovasculaires).
- Allergie connue ou suspectée au CBDV ou aux excipients utilisés dans la formulation (c. sésame).
- Indications cliniques de dysfonctionnement rénal, pancréatique ou hématologique, mises en évidence par des valeurs supérieures à la limite supérieure de la normale pour l'azote uréique sanguin/créatinine, des valeurs deux fois supérieures à la limite supérieure de la normale pour la lipase et l'amylase sériques, les plaquettes
- Anomalie de l'ECG au dépistage initial ou chute posturale cliniquement significative de la pression artérielle systolique au dépistage. Si l'ECG de dépistage initial montre un QTcB supérieur à 460 msec, alors 2 ECG supplémentaires seront effectués dans la même séance, à 5 minutes d'intervalle. S'il n'est pas reconnu lors du dépistage, alors une répétition complète en trois exemplaires montrant un QTcB moyen de 460 msec ou moins pour répondre à tous les critères d'inclusion/exclusion
- Les sujets féminins qui sont enceintes seront exclus de l'étude. Si une femme est capable de devenir enceinte, elle subira un test de grossesse avant son entrée dans l'étude. Les sujets féminins seront informés de ne pas devenir enceintes pendant la prise de CBDV. Les sujets féminins doivent informer l'investigateur et consulter un obstétricien ou un spécialiste materno-fœtal s'ils tombent enceintes pendant l'étude.
Plan d'étude
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 |
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Expérimental: Cannabidivarine (CBDV)
Dosage basé sur le poids de 10 mg/kg/jour de CBDV pendant 12 semaines
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CBDV is obtained from the Cannabis sativa L. plant and contains a negligible quantity (less than 0.2%) of Tetrahydrocannabinol (THC).
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Comparateur placebo: Placebo apparié
Dosage basé sur le poids de 10 mg/kg/jour de placebo pendant 12 semaines
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La solution buvable placebo contient des excipients correspondants.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Irritability Based on Aberrant Behavior Checklist-Irritability (ABC-I) Subscale
Délai: Baseline, Week 4, Week 8, Week 12
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Irritability will be assessed using the Aberrant Behavior Checklist-Irritability Subscale (ABC-I).
The ABC-I is a well-characterized outcome that is accepted by the FDA for the purpose of labeling and is one of the best and most validated outcome measures in the developmental disabilities.
The ABC-Irritability subscale consists of 15 questions that address the presence of irritability, aggression, tantrums and/or self-injury.
Each item is rated on a scale ranging from 0 ("Not at all a problem") to 3 ("Severe problem"), resulting in a total score range of 0-45, such that higher ABC-I scores are indicative of more severe behavioral problems.
Subjects must score an 18 or higher at screening to be included in the study.
ABC-I scores for Week 4, Week 8, and Week 12 are summarized in the table by study arm using descriptive statistics.
Baseline results for this outcome can be found in the Baseline Characteristics module.
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Baseline, Week 4, Week 8, Week 12
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Repetitive Behavior Based on the Repetitive Behavior Scale-Revised (RBS-R).
Délai: Baseline, Week 4, Week 8, Week 12
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Repetitive behavior will be evaluated using the RBS-R.
RBS-R is a 43-item self-report questionnaire used to measure the breadth or repetitive behaviors in children, adolescents, and adults with ASD.
The RBS-R consists of 6 subscales: Stereotyped Behavior, Self-injurious Behavior, Compulsive Behavior, Ritualistic Behavior, Sameness Behavior, and Restricted Behavior that have no overlap of item content.
Each of the 43 items are rated on a 4-point Likert scale ranging from 0 ("Behavior does not occur") to 3 ("Behavior occurs and is a severe problem"), yielding an overall scoring range of 0-129, such that higher scores are associated with increased severity of the problem behavior.
RBS-R scores for Week 4, Week 8, and Week 12 are summarized in the table by study arm using descriptive statistics.
Baseline results for this outcome can be found in the Baseline Characteristics module.
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Baseline, Week 4, Week 8, Week 12
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Repetitive Behaviors Based on Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS)
Délai: Baseline, Week 4, Week 8, Week 12
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Obsessive-compulsive symptoms will be assessed using the CY-BOCS.
The CY-BOCS is 10-item clinician-rated measure designed to assess the severity of obsessive-compulsive symptoms in children/adolescents over the prior week.
It consists of 5 primary sections: Time, Distress, Interference, Resistance, and Control of Symptoms.
The 10 items are rated on a scale from 0 ("No symptoms") to 4 ("Extreme symptoms"), for an overall possible range of 0-40, with higher scores indicative of greater severity of symptoms.
CY-BOCS scores for Week 4, Week 8, and Week 12 are summarized by study arm using descriptive statistics.
Baseline results for this outcome can be found in the Baseline Characteristics module.
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Baseline, Week 4, Week 8, Week 12
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Hyperphagia
Délai: Baseline, Week 4, Week 8, Week 12
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Hyperphagia will be assessed using the Hyperphagia Questionnaire for Clinical Trials (HQ-CT).
The HQ-CT is a 9-item caregiver-reported measure of the frequency and intensity of food-seeking behaviors in participants with Prader-Willi Syndrome (PWS) over the prior two-week period.
The 9 items are graded on a Likert scale ranging from 0 ("No Hyperphagia") to 4 ("Most severe hyperphagia"), yielding an overall possible scoring range of 0-36, with higher scores indicating greater, more severe hyperphagia.
HQ-CT scores for Week 4, Week 8, and Week 12 are summarized by study arm using descriptive statistics.
Baseline results for this outcome can be found in the Baseline Characteristics module.
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Baseline, Week 4, Week 8, Week 12
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Global Functioning
Délai: Week 4, Week 8, Week 12
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Global Functioning will be assessed using the Clinical Global Impression Scale - Improvement (CGI-I).
The CGI-I is a global assessment which measures the change in a participant's illness severity, relative to a baseline, considering all symptoms, behaviors, and functional impairment.
It consists of a 7-point clinician-rated scale as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse.
such that higher scores are indicative of worsening global function.
CGI-I scores for Week 4, Week 8, and Week 12 are summarized by study arm using basic descriptive statistics.
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Week 4, Week 8, Week 12
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Caregiver Strain
Délai: Baseline, Week 4, Week 8, Week 12
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Caregiver Strain will be evaluated using the Caregiver Strain Questionnaire (CSQ).
The CSQ is a 21-item self-report questionnaire, consisting of 3 subscales, developed to assess caregiver strain/stress for families with a child living with an emotional or behavioral disorder.
Items 1-11 assess Objective Strain.
Items 12, 16-18, and 20-21 assess Subjective Internalized Strain.
Items 13-15, and 19 assess Subjective Externalize Strain.
All CSQ items are rated from 1 ("Not at all a problem") to 5 ("Very much a problem").
Scores are calculated by averaging items within each subscale to handle missing data and calculating a Global Score by summing the 3 subscale means for a total possible scale range of 3-15.
Higher Global Scores are associated with increased Caregiver Strain.
Global results scores for Week 4, Week 8, and Week 12 are summarized by study arm using descriptive statistics.
Baseline results for this outcome can be found in the Baseline Characteristics module.
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Baseline, Week 4, Week 8, Week 12
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Rigid Behavior - Based on the Montefiore-Einstein Rigidity Scale-Revised-Prader-Willi Syndrome Scale (MERS-R-PWS)
Délai: Week 12
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Rigid behavior will be assessed based using the MERS-R-PWS. The MERS-R-PWS is a clinician-rated scale designed to assess 3 domains of rigid behavior in individuals with PWS: Behavioral Rigidity (e.g., Insistence on sameness, things must be done in his/her way, etc.) Cognitive Rigidity (e.g., Special interests, inflexible adherence to rules, etc.) Protest (in response to deviation from rigidity; e.g., tantrum, irritability, arguing) Each domain consists of 4 items rated on a 5-point scale ranging from 0 ("No/None/Not difficult") to 4 ("Extreme/Extremely Difficult"), yielding a range of 0-16. Scores at Week 12 will only be completed for subjects who display rigid behaviors at baseline, week 4, week 8 and week 12. A total MERS-R-PWS score (0-48) is obtained by summing subscale score. Individual subscale scores (0-16) are also summarized. Higher MERS-R-PWS scores are indicative of greater rigidity within each domain and overall rigidity. |
Week 12
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Aberrant Behavior
Délai: Baseline, Week 4, Week 8, Week 12
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Aberrant Behavior will be assessed using the Aberrant Behavior Checklist (ABC).
The ABC is a 58-item informative rating instrument used to measure maladaptive behaviors in individuals with developmental disabilities and ASD which resolves into 5 subscales: Irritability (15 items); Lethargy/Social withdrawal (16 items); Stereotypic behavior (7 items); Hyperactivity/noncompliance (16 items); and Inappropriate speech (4 items).
The ABC is completed by a parent/caregiver who knows the participant well.
The ABC measures behavior on a 4-point Likert severity scale: (0 = "Not all a problem," 1 = "Slight problem," 2 = "Moderately serious problem," and 3 = "Severe problem").
Scores for 4 of the 5 subscales are reported below (ABC-I results reported as part of the primary outcome).
Higher ABC subscale scores indicate greater behavioral severity/dysfunction of that subscale.
Week 4, Week 8, and Week 12 scores are summarized by study arm.
See Baseline Characteristics module for baseline data.
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Baseline, Week 4, Week 8, Week 12
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Sleep Quality
Délai: Baseline through Week 12
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Sleep quality will be assessed using ActiGraph GT9X-BT® activity monitors.
Successfully screened patients will receive the actigraphy device prior to the onsite baseline visit and will record a minimum of three days of baseline activity data prior to study initiation.
The ActiGraph GT9X-BT activity monitors are a well validated activity and sleep monitoring device widely utilized in clinical trials and health research.
For this study the ActiGraph monitors will measure: Sleep Latency (the time it takes to fall asleep), Total Sleep Time (the total amount of time spent asleep), and sleep efficiency (percentage of time in bed actually spent sleeping).
Sleep data is captured automatically via cloud service.
All parameters will be reported in hours/minutes and summarized by study arm.
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Baseline through Week 12
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Eric Hollander, MD, Montefiore Medical Center/Albert Einstein College of Medicine
Publications et liens utiles
Publications générales
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Liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Troubles de l'empreinte
- Manifestations neurologiques
- Maladies du système nerveux
- Troubles nutritionnels
- Maladies génétiques, innées
- Suralimentation
- Manifestations neurocomportementales
- Anomalies congénitales
- Anomalies multiples
- En surpoids
- Déficience intellectuelle
- Obésité
- Troubles chromosomiques
- Maladies et anomalies congénitales, héréditaires et néonatales
- Maladies nutritionnelles et métaboliques
- Syndrome de Prader Willi
- cannabidivarine
Autres numéros d'identification d'étude
- 2019-9914
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Délai de partage IPD
Critères d'accès au partage IPD
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
- SÈVE
- CIF
- RSE
Informations sur les médicaments et les dispositifs, documents d'étude
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