A Study to Evaluate the Efficacy of Oral AKST4290 in Participants With Moderately Severe to Severe Diabetic Retinopathy (CAPRI)

NCT ID: NCT05038020

Last Updated: 2023-11-01

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

3 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-08-17

Study Completion Date

2022-04-19

Brief Summary

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A Double-Masked, Placebo-Controlled Study to Evaluate the Efficacy of Oral AKST4290 in Participants with Moderately Severe to Severe Diabetic Retinopathy (CAPRI).

Detailed Description

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This study is designed to evaluate the efficacy of AKST4290 administered at a total daily dose (TDD) of 800 mg daily (400 mg twice daily \[b.i.d.\]) compared with placebo over a 24-week dosing period in participants with moderately severe non-proliferative diabetic retinopathy (NPDR) to severe NPDR.

Participants will be enrolled and allocated to 1 of 2 treatment arms in a 2:1 randomization scheme (AKST4290: placebo). Participants will receive treatment for a total of 24 weeks with either AKST4290 800 mg daily (400 mg b.i.d.) in Arm 1 or placebo (matching tablets) in Arm 2

Conditions

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Diabetic Retinopathy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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AKST4290

Subjects will receive AKST4290, 400mg twice daily, for 24 weeks

Group Type EXPERIMENTAL

AKST4290

Intervention Type DRUG

Oral AKST4290

Placebo

Subjects will receive matching Placebo, twice daily, for 24 weeks

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Oral Placebo

Interventions

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AKST4290

Oral AKST4290

Intervention Type DRUG

Placebo

Oral Placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Age ≥ 18 years.
2. Type 1 or type 2 DM.
3. BCVA ETDRS visual acuity letter score≥ 69 letters at Screening.
4. Moderately severe NPDR (DRSS Level 47) to severe NPDR (DRSS Level 53).

Exclusion Criteria

1. Evidence of neovascularization (NV) (including active iris or angle NV) requiring treatment, per investigator discretion.
2. PRP or grid laser within 1000 microns of the foveal center.
3. Center-InvolvedI-Diabetic Macular Edema (CI-DME) on clinical examination (CI is defined as DME within 1,000 microns of the foveal center).
4. Prior Intraocular of periocular steroid Injection
5. Systemic anti-VEGF or pro-VEGF treatment within 4 months prior to enrollment and assignment to a randomized treatment.
6. History of vitreoretinal surgery.
7. History of major ocular surgery (including cataract extraction, scleral buckle, any intraocular surgery, etc.) within prior 4 months or anticipated within the next 6 months following randomization.
8. History of DME or DR treatment with laser or intraocular injections of medication.
9. Medical history or condition that, in the opinion of the investigator would preclude participation in the study.
10. Clinically relevant abnormal laboratory value at Screening, including hematology, blood chemistry, or urinalysis (laboratory testing may be repeated once during the Screening phase).
11. Malignancy for which the participant has undergone resection, radiation, or chemotherapy within the past 5 years (treated basal cell carcinoma or fully cured squamous cell carcinoma are allowed).
12. Concurrent participation in another interventional clinical trial; prior clinical trial participants must have been off study agents for at least 30 days for small molecules, 4 months for disease modifying therapies, and 1 year for vaccine or immunotherapy trials prior to Screening.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Alkahest, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Alkahest Medical Monitor

Role: STUDY_DIRECTOR

Alkahest, Inc.

Locations

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Site 132

Phoenix, Arizona, United States

Site Status

Site 136

Phoenix, Arizona, United States

Site Status

Site 123

Glendale, California, United States

Site Status

Site 121

Huntington Beach, California, United States

Site Status

Site 116

Clearwater, Florida, United States

Site Status

Site 117

Sarasota, Florida, United States

Site Status

Site 118

Winter Haven, Florida, United States

Site Status

Site 120

Oak Forest, Illinois, United States

Site Status

Site 133

Beaufort, South Carolina, United States

Site Status

Site 127

Ladson, South Carolina, United States

Site Status

Site 122

Arlington, Texas, United States

Site Status

Site 130

Bellaire, Texas, United States

Site Status

Site 126

Harlingen, Texas, United States

Site Status

Site 134

Houston, Texas, United States

Site Status

Site 129

Katy, Texas, United States

Site Status

Site 128

San Antonio, Texas, United States

Site Status

Site 125

Salt Lake City, Utah, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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AKST4290-231

Identifier Type: -

Identifier Source: org_study_id

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