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Completed

NCT Number: NCT05372991

Safety, Tolerability and Pharmacodynamics Evaluation of CBT-009 Eye Drop

This is a Two-Stage Phase 1/2 study to evaluate the safety, tolerability and pharmacodynamics of CBT-009 eye drop in healthy volunteers.

CBT-009 has the active ingredient of atropine, which at low doses, has shown to be effective in slowing down myopic deterioration. Current atropine products are prone to degradation once the container is open to the air. ADS Pharmaceutical has developed a novel atropine formulation.

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Key information

Age range

18 year–36 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1 / Phase 2

Primary location

USC

Brisbane, Australia

About this study

Type of Study:

Stage 1: Single center, open-labeled, vehicle-controlled, single ascending dose.

Stage 2: Parallel, double-masked, randomized, vehicle-controlled with dosing once-daily in one eye.

Study Population:

Male or female healthy volunteers aged 18-36 years.

Number of Subjects and Sites:

Stage 1: Enrollment is planned for approximately 32 healthy volunteers with 8 subjects per cohort for a total of 4 cohorts.

Stage 2: Enrollment is planned for approximately 50 healthy volunteers with 25 subjects per cohort for a total of 2 cohorts.

Duration of Study Participation:

Stage 1: One day. Stage 2: 28 days of treatment with no follow-up observations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Healthy volunteer without any active ocular diseases

  • 18-36 years of age
  • Able to provide written informed consent and comply with study assessments for the full duration of the study

Exclusion criteria

Uncontrolled systemic disease

  • Active ocular disease
  • Any ocular surgical procedure within the last 3 months
  • Current enrollment in an investigational drug or device study or participation in such as study within 30 days prior to entry into this study
  • Any condition or situation which, in the investigator's opinion, may put the volunteer at significant risk, may confound the study results, or may interfere significantly with the volunteer's participation in the study. Allergic or sensitive to Atropine study medication or formulation excipient
  • Smoking during the study
  • Female patients who are pregnant, nursing, or planning a pregnancy during the study
  • Current or anticipated use of topical ophthalmic medications are prohibited during the study. Volunteers must have discontinued use of ophthalmic medications for at least 2 weeks prior to Day 1 visit

Treatment and study plan

CBT-009

Drug

This is a Two-Stage Phase 1/2 study to evaluate the safety, tolerability and pharmacodynamics of CBT-009 eye drop in healthy volunteers.

Other names: Atropine

Vehicle

Drug

This is a Two-Stage Phase 1/2 study to evaluate the safety, tolerability and pharmacodynamics of CBT-009 eye drop in healthy volunteers.

Other names: Without Atropine

Atropine Sulfate

Drug

This is a Two-Stage Phase 1/2 study to evaluate the safety, tolerability and pharmacodynamics of CBT-009 eye drop in healthy volunteers.

Other names: 0.025% eyedrop aqueous solution

Primary outcomes

  1. Safety on near visual acuity

    Time frame: 28 days

    Near visual acuity will be assessed using best-corrected distance spectacle correction with a reduced logMAR reading chart placed at 40 cm under well-lit conditions at Day 28.

  2. Safety on accommodation

    Time frame: 28 days

    The accommodation will be measured using a near point rule with best-corrected distance spectacle correction at Day 28.

  3. Safety on mesopic and photopic pupil

    Time frame: 28 days

    Mesopic pupil size and photopic pupil size will be measured with a pupillometer at Day 28.

Sponsors and collaborators

Lead sponsor

Cloudbreak Therapeutics, LLC

Industry

Collaborators

  • Novotech (Australia) Pty Limited

Registry information

Official study title

A Two-Stage, Phase 1/2 Study to Evaluate the Safety, Tolerability and Pharmacodynamics of CBT-009 Eye Drop in Healthy Volunteers

Important dates

Study start
2022
Primary completion
2023
Study completion
2023
First posted
May 13, 2022
Registry last updated
Jan 27, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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