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A Study to Assess the Long-Term Safety of Pharmaceutical Grade Synthetic Cannabidiol Oral Solution in Participants With Prader-Willi Syndrome

A Multicenter, Open-Label Study to Assess the Long-Term Safety of Pharmaceutical Grade Synthetic Cannabidiol Oral Solution in Patients With Prader-Willi Syndrome

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03458416
Enrollment
2
Registered
2018-03-08
Start date
2018-09-06
Completion date
2019-07-31
Last updated
2023-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prader-Willi Syndrome

Brief summary

The objective of this study is to assess the long-term safety and tolerability of Cannabidiol Oral Solution (CBD) in participants with Prader-Willi Syndrome.

Interventions

An oral solution containing pharmaceutical grade cannabidiol (nonplant-based).

Sponsors

Benuvia Therapeutics Inc.
CollaboratorINDUSTRY
Radius Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
8 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

1. Completed activities up to and including Visit 10 (Study Completion) of INS011-16- 085. 2. Participant and/or parent(s)/caregiver(s) fully comprehend the informed consent form and assent form, understand all study procedures, and can communicate satisfactorily with the investigator and study coordinator, in accordance with applicable laws, regulations, and local requirements. 3. If female, is either not of childbearing potential or practicing medically acceptable methods of birth control. 4. Psychotropic treatment will be permitted if the participant has been on a stable dose during the INS011-16-085 and does not anticipate a dose change during the course of the study. 5. Growth hormone treatment will be permitted if the participant has been on a stable dose during INS01-16-085. 6. Any other treatment including thyroid hormones should be stable prior to entering the INS011-17-115 study. 7. In the opinion of the investigator, the parent(s)/caregiver(s) is (are) willing and able to comply with the study procedures and visit schedules, including venipuncture, and the visit schedules.

Exclusion criteria

1. Participant or parent(s)/caregiver(s) have commitments during the study duration that would interfere with attending all study visits. 2. Experienced an anoxic episode related to study drug requiring resuscitation during the previous study. 3. Uncontrolled Type I and Type II Diabetes. 4. Developed an adverse event thought to be related to CBD in the previous study and the investigator determines that continuing treatment with CBD would not be in the best interest of the partient. 5. History of clinically significant gastrointestinal, renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, immunologic, psychiatric, or cardiovascular disease, or other condition which would jeopardize safety or impact validity of results (per investigator). 6. Currently taking felbamate. 7. Compromised respiratory function or severe respiratory insufficiency. 8. Pregnant or lactating female. 9. In the opinion of the investigator, the participant is unsuitable in any other way to participate in this study.

Design outcomes

Primary

MeasureTime frameDescription
Incidence Of Adverse Events (AEs) And Serious Adverse Events (SAEs) Associated With Cannabidiol Oral SolutionUp to Week 52AE is defined as any untoward medical occurrence in a participant administered with a pharmaceutical product which does not necessarily have a causal relationship with the treatment. An SAE is defined as any event that results in death, life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or a congenital anomaly/birth defect. A summary of other non-serious AEs and all serious AEs regardless of causality, is located in the Reported AE section.

Countries

United States

Participant flow

Recruitment details

This study was terminated by the Sponsor. The Sponsor terminated the study due to slow enrollment and a failure to identify adequate participants that met eligibility criteria. Due to study termination and only 2 participants being enrolled there are concerns regarding participant confidentiality, therefore no data are being reported.

Pre-assignment details

Participants were enrolled in this long-term safety study after completing the INS011-16-085 study. Only 2 participants enrolled in this study. The participants received cannabidiol oral solution (CBD) doses for up to 48 weeks, and a follow-up period of 30 days.

Participants by arm

ArmCount
Cannabidiol Oral Solution
Participants received 20 mg/kg/day to 40 mg/kg/day of CBD given twice daily with standard meals.
0
Total0

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 0
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Incidence Of Adverse Events (AEs) And Serious Adverse Events (SAEs) Associated With Cannabidiol Oral Solution

AE is defined as any untoward medical occurrence in a participant administered with a pharmaceutical product which does not necessarily have a causal relationship with the treatment. An SAE is defined as any event that results in death, life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or a congenital anomaly/birth defect. A summary of other non-serious AEs and all serious AEs regardless of causality, is located in the Reported AE section.

Time frame: Up to Week 52

Population: This study was terminated by the Sponsor. The Sponsor terminated the study due to slow enrollment and a failure to identify adequate participants that met eligibility criteria. Due to study termination and only 2 participants being enrolled there are concerns regarding participant confidentiality, therefore no data are being reported.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026