search
Back to results

Pharmacodynamic Study of Emixustat Hydrochloride in Subjects With Macular Atrophy Secondary to Stargardt Disease

Primary Purpose

Stargardt Disease, Macular Atrophy

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Emixustat
Sponsored by
Kubota Vision Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Stargardt Disease

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria, including, but not limited to:

  • Clinical diagnosis of macular atrophy (MA) secondary to Stargardt disease (STGD) in one or both eyes
  • At least 2 pathogenic mutations of the ABCA4 gene
  • Early Treatment Diabetic Retinopathy Study BCVA of ≥ 20 letters (approximately ≥ 20/400 Snellen) in the study eye
  • Adequate clarity of ocular media and adequate pupillary dilation to permit good quality imaging of MA in the study eye
  • Able and willing to provide written informed consent before undergoing any study-related procedures
  • Able to reliably administer oral medication by self or with available assistance

Exclusion Criteria, including, but not limited to:

  • Macular atrophy associated with a condition other than STGD in either eye.
  • Presence in either eye of an active ocular disease that in the opinion of the Investigator compromises or confounds visual function.
  • History of any intraocular or ocular surface surgery in either eye within 3 months of screening.
  • Current or previous participation in an interventional study to treat STGD using gene therapy or stem cell therapy at any time, or participation in an interventional study of a vitamin A derivative ≤3 months prior to screening.
  • Pre-specified laboratory abnormalities at screening
  • Presence of other medical or ophthalmic disease, physical examination finding, or clinical laboratory finding that in the opinion of the Investigator may contraindicate the use of an investigational drug and place the subject at risk
  • Current or history of cancer (except for adequately treated basal cell or squamous cell carcinoma of the skin) within 1 year of screening
  • History of myocardial infarction, stroke, unstable ischemic heart disease, uncontrolled cardiac arrhythmia, or hospitalization for congestive heart failure within 6 months of screening.
  • Anticipated hospitalization for a medical/surgical procedure(s) that could result in interruption/premature cessation of study treatment or participation.
  • Electrocardiogram with a clinically significant abnormal finding
  • Female subjects who are pregnant or lactating
  • Female subjects of childbearing potential or male subjects who are not surgically sterile who are not willing to practice a medically accepted method of birth control with their sexual partner from screening through 30 days after the final dose of study drug

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

Emixustat Dose 1

Emixustat Dose 2

Emixustat Dose 3

Arm Description

lowest dose of once-daily oral emixustat

middle dose of once-daily oral emixustat

highest dose of once-daily oral emixustat

Outcomes

Primary Outcome Measures

Change in Electrical Response of the Retina to a Flash of Light, as Measured by Electroretinogram
Percent suppression compared to baseline of rod b-wave amplitude recovery after a photobleaching light.

Secondary Outcome Measures

Percentage of Subjects With Adverse Events, by Severity and Seriousness
Assessment of safety profile

Full Information

First Posted
January 20, 2017
Last Updated
April 27, 2021
Sponsor
Kubota Vision Inc.
search

1. Study Identification

Unique Protocol Identification Number
NCT03033108
Brief Title
Pharmacodynamic Study of Emixustat Hydrochloride in Subjects With Macular Atrophy Secondary to Stargardt Disease
Official Title
A Phase 2a Multicenter, Randomized, Masked Study Evaluating the Pharmacodynamics of Emixustat Hydrochloride in Subjects With Macular Atrophy Secondary to Stargardt Disease
Study Type
Interventional

2. Study Status

Record Verification Date
April 2021
Overall Recruitment Status
Completed
Study Start Date
January 2017 (Actual)
Primary Completion Date
November 2017 (Actual)
Study Completion Date
December 2017 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Kubota Vision Inc.

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
This is a pharmacodynamics study of emixustat hydrochloride in subjects with macular atrophy secondary to Stargardt disease.
Detailed Description
This is a multicenter, randomized, masked study to characterize the pharmacodynamics, safety and tolerability of emixustat in subjects with macular atrophy secondary to Stargardt disease.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Stargardt Disease, Macular Atrophy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
23 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Emixustat Dose 1
Arm Type
Experimental
Arm Description
lowest dose of once-daily oral emixustat
Arm Title
Emixustat Dose 2
Arm Type
Experimental
Arm Description
middle dose of once-daily oral emixustat
Arm Title
Emixustat Dose 3
Arm Type
Experimental
Arm Description
highest dose of once-daily oral emixustat
Intervention Type
Drug
Intervention Name(s)
Emixustat
Other Intervention Name(s)
emixustat hydrochloride
Intervention Description
Once daily, tablet for oral administration
Primary Outcome Measure Information:
Title
Change in Electrical Response of the Retina to a Flash of Light, as Measured by Electroretinogram
Description
Percent suppression compared to baseline of rod b-wave amplitude recovery after a photobleaching light.
Time Frame
Baseline and 1 month
Secondary Outcome Measure Information:
Title
Percentage of Subjects With Adverse Events, by Severity and Seriousness
Description
Assessment of safety profile
Time Frame
1 month

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria, including, but not limited to: Clinical diagnosis of macular atrophy (MA) secondary to Stargardt disease (STGD) in one or both eyes At least 2 pathogenic mutations of the ABCA4 gene Early Treatment Diabetic Retinopathy Study BCVA of ≥ 20 letters (approximately ≥ 20/400 Snellen) in the study eye Adequate clarity of ocular media and adequate pupillary dilation to permit good quality imaging of MA in the study eye Able and willing to provide written informed consent before undergoing any study-related procedures Able to reliably administer oral medication by self or with available assistance Exclusion Criteria, including, but not limited to: Macular atrophy associated with a condition other than STGD in either eye. Presence in either eye of an active ocular disease that in the opinion of the Investigator compromises or confounds visual function. History of any intraocular or ocular surface surgery in either eye within 3 months of screening. Current or previous participation in an interventional study to treat STGD using gene therapy or stem cell therapy at any time, or participation in an interventional study of a vitamin A derivative ≤3 months prior to screening. Pre-specified laboratory abnormalities at screening Presence of other medical or ophthalmic disease, physical examination finding, or clinical laboratory finding that in the opinion of the Investigator may contraindicate the use of an investigational drug and place the subject at risk Current or history of cancer (except for adequately treated basal cell or squamous cell carcinoma of the skin) within 1 year of screening History of myocardial infarction, stroke, unstable ischemic heart disease, uncontrolled cardiac arrhythmia, or hospitalization for congestive heart failure within 6 months of screening. Anticipated hospitalization for a medical/surgical procedure(s) that could result in interruption/premature cessation of study treatment or participation. Electrocardiogram with a clinically significant abnormal finding Female subjects who are pregnant or lactating Female subjects of childbearing potential or male subjects who are not surgically sterile who are not willing to practice a medically accepted method of birth control with their sexual partner from screening through 30 days after the final dose of study drug
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Acucela Medical Director, MD
Organizational Affiliation
Kubota Vision Inc.
Official's Role
Study Director
Facility Information:
City
Dallas
State/Province
Texas
ZIP/Postal Code
75231
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
33214244
Citation
Kubota R, Birch DG, Gregory JK, Koester JM. Randomised study evaluating the pharmacodynamics of emixustat hydrochloride in subjects with macular atrophy secondary to Stargardt disease. Br J Ophthalmol. 2022 Mar;106(3):403-408. doi: 10.1136/bjophthalmol-2020-317712. Epub 2020 Nov 19.
Results Reference
derived

Learn more about this trial

Pharmacodynamic Study of Emixustat Hydrochloride in Subjects With Macular Atrophy Secondary to Stargardt Disease

We'll reach out to this number within 24 hrs