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CBDV vs placebo hos barn og voksne opp til 30 år med Prader-Willi syndrom (PWS)

16. april 2026 oppdatert av: Eric Hollander

Cannabidivarin (CBDV) vs. placebo hos barn og voksne opp til 30 år med Prader-Willi syndrom (PWS)

Denne studien tar sikte på å studere effektiviteten og sikkerheten til cannabidivarin (CBDV) som behandling for barn med PWS.

Studieoversikt

Status

Avsluttet

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Denne kliniske studien tar sikte på å studere effektiviteten og sikkerheten til cannabidivarin (CBDV), en naturlig forekommende homolog av phytocannabinoid cannabidiol (CBD) hos barn og unge voksne med Prader-Willi syndrom (PWS). CBDV har effekter uavhengig av CB1- og CB2-reseptoraktivering og en god sikkerhetsprofil. Dette forslaget tar for seg Foundation for Prader Willi Researchs femårige PWS-forskningsplan: Program 1, Clinical Care Research: søker å evaluere behandlinger som tar sikte på å redusere atferdssymptomer, som irritabilitet, for å forbedre livskvaliteten til både individet med PWS og deres familier. GW Pharmaceuticals vil gi CBDV-medikamentet og matchende placebo og ytterligere finansiering til nettstedet.

Studietype

Intervensjonell

Registrering (Faktiske)

6

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • New York
      • The Bronx, New York, Forente stater, 10467
        • Montefiore Medical Center, Albert Einstein College of Medicine

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

5 år til 30 år (Barn, Voksen)

Tar imot friske frivillige

Ja

Beskrivelse

Inklusjonskriterier

  1. Mannlige eller kvinnelige polikliniske pasienter i alderen 5 til 30 år.
  2. Diagnose av PWS bekreftet ved genetisk testing og pasientjournaler og historie.
  3. Stabile farmakologiske, pedagogiske, atferdsmessige og/eller diettintervensjoner i 4 uker før studiestart, og så lenge studien varer.
  4. Ha en fysisk undersøkelse og laboratorieresultater som er innenfor normene for PWS
  5. Tilstedeværelse av en forelder/omsorgsperson/foresatt som er i stand til å samtykke til deres deltakelse og fullføre vurderinger angående pasientens utvikling og atferd gjennom hele studien. Barnesamtykke vil bli innhentet hvis forsøkspersonen er 7 år eller eldre og har mental kapasitet til å forstå og signere et skriftlig samtykkeskjema og/eller gi muntlig samtykke.
  6. Poeng på Clinical Global Impression Scale Severity (CGI-S) ≥ 4 (moderat alvorlighetsgrad) ved baseline.
  7. Score på ≥18 på sjekklisten for avvikende atferd - Irritabilitet (ABC-I) ved baseline.
  8. Godta å ikke kjøre bil eller bruke maskiner.

Eksklusjonskriterier

  1. Eksponering for ethvert undersøkelsesmiddel i de 30 dagene før randomisering.
  2. Tidligere kronisk behandling med CBD eller CBDV.
  3. Positiv testing for THC eller andre misbruksmedisiner via urintesting ved screeningbesøket eller baseline-besøk ved gjentatt bekreftelsestesting.
  4. Historie om narkotikamisbruksforstyrrelse inkludert cannabisbruksforstyrrelse
  5. En annen psykiatrisk primærdiagnose enn PWS, inkludert bipolar lidelse, psykose, schizofreni, PTSD eller MDD. Disse pasientene vil bli ekskludert på grunn av potensielle forvirrende resultater.
  6. En medisinsk tilstand som i alvorlig grad påvirker forsøkspersonens evne til å delta i studien, forstyrrer gjennomføringen av studien, forvirrer tolkningen av studieresultater eller setter forsøkspersonens velvære i fare (inkludert men ikke begrenset til nedsatt lever- eller nyrefunksjon og hjerte- og karsykdommer).
  7. Kjent eller mistenkt allergi mot CBDV eller hjelpestoffer brukt i formuleringen (dvs. sesam).
  8. Kliniske indikasjoner på nyre-, bukspyttkjertel- eller hematologisk dysfunksjon som vist ved verdier over øvre normalgrenser for BUN/kreatinin, verdier to ganger øvre normalgrense for serumlipase og amylase, blodplater
  9. EKG-avvik ved baseline-screening eller klinisk signifikant posturalt fall i systolisk blodtrykk ved screening. Hvis det første screenings-EKG-et viser en QTcB på mer enn 460 msek, vil 2 ekstra EKG-er bli utført i samme møte, med 5 minutters mellomrom. Hvis ikke gjenkjent ved screening, så en full triplikat gjentakelse som viser en gjennomsnittlig QTcB på 460 msek eller mindre for å oppfylle alle inkluderings-/eksklusjonskriterier
  10. Kvinnelige forsøkspersoner som er gravide vil bli ekskludert fra studien. Hvis en kvinnelig forsøksperson er i stand til å bli gravid, vil hun få en graviditetstest før hun går inn i studien. Kvinnelige forsøkspersoner vil bli informert om at de ikke blir gravide mens de tar CBDV. Kvinnelige forsøkspersoner må fortelle etterforskeren og konsultere en fødselslege eller mor-føtal spesialist hvis de blir gravide under studien.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Cannabidivarin (CBDV)
Vektbasert dosering på 10 mg/kg/dag CBDV i 12 uker
Legemiddel: CBDV Compound
CBDV is obtained from the Cannabis sativa L. plant and contains a negligible quantity (less than 0.2%) of Tetrahydrocannabinol (THC).
Placebo komparator: Matchet placebo
Vektbasert dosering på 10 mg/kg/dag placebo i 12 uker
Legemiddel: Placebo
Placebo mikstur inneholder matchende hjelpestoffer.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Irritability Based on Aberrant Behavior Checklist-Irritability (ABC-I) Subscale
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Repetitive Behavior Based on the Repetitive Behavior Scale-Revised (RBS-R).
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12
Repetitive Behaviors Based on Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS)
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12
Hyperphagia
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12
Global Functioning
Tidsramme: Week 4, Week 8, Week 12
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.
Week 4, Week 8, Week 12
Caregiver Strain
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12
Rigid Behavior - Based on the Montefiore-Einstein Rigidity Scale-Revised-Prader-Willi Syndrome Scale (MERS-R-PWS)
Tidsramme: Week 12

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
Aberrant Behavior
Tidsramme: Baseline, Week 4, Week 8, Week 12
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.
Baseline, Week 4, Week 8, Week 12
Sleep Quality
Tidsramme: Baseline through Week 12
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.
Baseline through Week 12

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Eric Hollander

Samarbeidspartnere

Foundation for Prader-Willi Research
GW Pharmaceuticals Ltd

Etterforskere

  • Hovedetterforsker: Eric Hollander, MD, Montefiore Medical Center/Albert Einstein College of Medicine

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

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  • Angulo MA, Butler MG, Cataletto ME. Prader-Willi syndrome: a review of clinical, genetic, and endocrine findings. J Endocrinol Invest. 2015;38(12):1249-1263.
  • Miller J, Wagner M. Prader-Willi syndrome and sleep-disordered breathing. Pediatr Ann. 2013;42(10):200-204.
  • Butler MG, Hossain W, Sulsona C, Driscoll DJ, Manzardo AM. Increased plasma chemokine levels in children with Prader-Willi syndrome. Am J Med Genet A. 2015;167A(3):563-571.
  • Viardot A, Sze L, Purtell L, et al. Prader-Willi syndrome is associated with activation of the innate immune system independently of central adiposity and insulin resistance. J Clin Endocrinol Metab. 2010;95(7):3392-3399.
  • Irizarry KA, Miller M, Freemark M, Haqq AM. Prader Willi Syndrome: Genetics, Metabolomics, Hormonal Function, and New Approaches to Therapy. Adv Pediatr. 2016;63(1):47-77.
  • Rout U, Abdul-Rahman OA, Dhossche DM. An immunological basis of hyperphagia driven by GABAergic dysfunction in Prader-Willi Syndrome. Med Hypotheses. 2012;78(4):462-464.
  • Knuesel I, Chicha L, Britschgi M, et al. Maternal immune activation and abnormal brain development across CNS disorders. Nat Rev Neurol. 2014;10(11):643-660.
  • Blackmon K. Structural MRI biomarkers of shared pathogenesis in autism spectrum disorder and epilepsy. Epilepsy Behav. 2015;47:172-182.
  • Washington J, 3rd, Kumar U, Medel-Matus JS, Shin D, Sankar R, Mazarati A. Cytokinedependent bidirectional connection between impaired social behavior and susceptibility to seizures associated with maternal immune activation in mice. Epilepsy Behav. 2015;50:40- 45.
  • Basavarajappa BS, Nixon RA, Arancio O. Endocannabinoid system: emerging role from neurodevelopment to neurodegeneration. Mini Rev Med Chem. 2009;9(4):448-462.
  • Kerr DM, Downey L, Conboy M, Finn DP, Roche M. Alterations in the endocannabinoid system in the rat valproic acid model of autism. Behav Brain Res. 2013;249:124-132.
  • Klein TW, Cabral GA. Cannabinoid-induced immune suppression and modulation of antigen-presenting cells. J Neuroimmune Pharmacol. 2006;1(1):50-64.
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  • Siniscalco D, Bradstreet JJ, Cirillo A, Antonucci N. The in vitro GcMAF effects on endocannabinoid system transcriptionomics, receptor formation, and cell activity of autism-derived macrophages. J Neuroinflammation. 2014;11:78.
  • Jean-Gilles L, Gran B, Constantinescu CS. Interaction between cytokines, cannabinoids and the nervous system. Immunobiology. 2010;215(8):606-610.
  • Anavi-Goffer S, Baillie G, Irving AJ, et al. Modulation of L-alpha-lysophosphatidylinositol/GPR55 mitogen-activated protein kinase (MAPK) signaling by cannabinoids. J Biol Chem. 2012;287(1):91-104.
  • Rock EM, Sticht MA, Duncan M, Stott C, Parker LA. Evaluation of the potential of the phytocannabinoids, cannabidivarin (CBDV) and Delta(9) -tetrahydrocannabivarin (THCV), to produce CB1 receptor inverse agonism symptoms of nausea in rats. Br J Pharmacol. 2013;170(3):671-678.
  • Pagano E, Romano B, Iannotti FA, et al. The non-euphoric phytocannabinoid cannabidivarin counteracts intestinal inflammation in mice and cytokine expression in biopsies from UC pediatric patients. Pharmacol Res. 2019;149:104464.
  • De Petrocellis L, Ligresti A, Moriello AS, et al. Effects of cannabinoids and cannabinoidenriched Cannabis extracts on TRP channels and endocannabinoid metabolic enzymes. Br J Pharmacol. 2011;163(7):1479-1494.
  • Deiana S, Watanabe A, Yamasaki Y, et al. Plasma and brain pharmacokinetic profile of cannabidiol (CBD), cannabidivarine (CBDV), Delta(9)-tetrahydrocannabivarin (THCV) and cannabigerol (CBG) in rats and mice following oral and intraperitoneal administration and CBD action on obsessive-compulsive behaviour. Psychopharmacology (Berl). 2012;219(3):859-873.
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  • Coiro P, Padmashri R, Suresh A, et al. Impaired synaptic development in a maternal immune activation mouse model of neurodevelopmental disorders. Brain Behav Immun. 2015;50:249-258.
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  • Lam KS, Aman MG. The Repetitive Behavior Scale-Revised: independent validation in individuals with autism spectrum disorders. J Autism Dev Disord. 2007;37(5):855-866.
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  • Goodman WK, Price LH, Rasmussen SA, et al. The Yale-Brown Obsessive Compulsive Scale. I. Development, use, and reliability. Arch Gen Psychiatry. 1989;46(11):1006-1011.
  • McCandless SE, Yanovski JA, Miller J, et al. Effects of MetAP2 inhibition on hyperphagia and body weight in Prader-Willi syndrome: A randomized, double-blind, placebocontrolled trial. Diabetes Obes Metab. 2017;19(12):1751-1761.
  • Arora T, Broglia E, Pushpakumar D, Lodhi T, Taheri S. An investigation into the strength of the association and agreement levels between subjective and objective sleep duration in adolescents. PLoS One. 2013;8(8):e72406.
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Hjelpsomme linker

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

23. november 2020

Primær fullføring (Faktiske)

31. oktober 2024

Studiet fullført (Faktiske)

31. oktober 2024

Datoer for studieregistrering

Først innsendt

19. februar 2019

Først innsendt som oppfylte QC-kriteriene

19. februar 2019

Først lagt ut (Faktiske)

20. februar 2019

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

16. april 2026

Sist bekreftet

1. april 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 2019-9914

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

All IPD som ligger til grunn resulterer i en publikasjon

IPD-delingstidsramme

Following publication for an indefinite period.

Tilgangskriterier for IPD-deling

Contact Principal Investigator for availability of IPD data.

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE
  • ICF
  • CSR

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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