NCT03078309

The Effects of Cannabis on Visual Functions in Healthy and Retinitis Pigmentosa Patients

A Controlled Study of the Effect of Cannabis on Visual Functions in Healthy Subjects and in Retinitis Pigmentosa Patients

• Status: Unknown
• Phase: EARLY_Phase 1
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Hadassah Medical Organization · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Accepted

Summary

Medical Marijuana is used widely, and its effects on the visual system and the function of the retina have not been investigated thoroughly. Some evidence suggests that cannabinoids may be beneficial in certain degenerative diseases of the retina. The purpose of the study is 1. To determine whether cannabis derivatives affect the visual functions in healthy adults 2. To examine the effect of cannabis derivatives on the retina of retinitis pigmentosa patients

Detailed description

Twenty five healthy subjects and 25 retinitis pigmentosa patients will be recruited and will sign an informed consent form. An initial eye exam will include visual acuity and stereo vision, eye movements and eye movement recording, a full slit lamp eye exam, intra-ocular pressure measurement, visual field, OCT and electrophysiology. The subjects will receive a single sublingual dose of cannabis (THC:CBD 1:1, THC 5 mg, or THE:CBD 1:40, THC 5 mg), and will undergo the above examination again. Subjects will be monitored for 5 hours after the administration of cannabis.

Conditions

• Retinitis Pigmentosa
• Retinal Degeneration
• Cannabis

Interventions

Type	Name	Description
DRUG	cannabis	single dose sublingual cannabis (THC:CBD 1:1, THC:CBD 1:40)

Timeline

• Start date: 2018-09-01
• Primary completion: 2021-12-01
• Completion: 2021-12-01
• First posted: 2017-03-13
• Last updated: 2021-02-12

Locations

1 site across 1 country: Israel