Actively Recruiting

Phase 2
Age: 12Years - 25Years
All Genders
NCT05957848

Guanfacine Extended-release for Adolescents With Cannabis Use

Led by Orygen · Updated on 2025-07-31

100

Participants Needed

1

Research Sites

152 weeks

Total Duration

On this page

Sponsors

O

Orygen

Lead Sponsor

Y

Youth Support and Advocacy Service

Collaborating Sponsor

AI-Summary

What this Trial Is About

A randomized controlled trial to assess the efficacy of extended-release guanfacine to reduce cannabis use frequency in young people with cannabis use disorder following a period of monitored abstinence.

CONDITIONS

Official Title

Guanfacine Extended-release for Adolescents With Cannabis Use

Who Can Participate

Age: 12Years - 25Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • 12 to 25 years of age at consent
  • Seeking treatment for cannabis use
  • Diagnosed with mild, moderate, or severe Cannabis Use Disorder according to DSM-5
  • Self-reported cannabis use at least 5 days per week during the 28 days before screening with a THC positive urine test on screening day
  • Able to provide informed consent with adequate IQ and English fluency; participants under 18 must have both their own and their parent or guardian's consent
Not Eligible

You will not qualify if you...

  • Moderate or severe substance use disorder other than cannabis or nicotine
  • Unstable medical, psychiatric, or neurological conditions or other medical issues that contraindicate participation
  • Diagnosis of psychotic or bipolar illness
  • Acute suicidality as assessed by a clinician
  • Current prescription of antipsychotics, benzodiazepines, sedatives, or ADHD medications; antidepressants allowed only if stable dose for over 2 weeks
  • History of heart disease or cardiac risk factors such as arrhythmias
  • Abnormal liver or thyroid function based on significant blood test findings
  • Pregnancy, breastfeeding, or sexually active without effective contraception
  • Planning to enter residential rehabilitation after treatment in the youth residential withdrawal facility

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

Orygen

Parkville, Victoria, Australia, 3052

Actively Recruiting

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Research Team

G

Gillinder Bedi, DPsych

CONTACT

E

Emily A Karanges, PhD

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Guanfacine Extended-release for Adolescents With Cannabis Use | DecenTrialz