Study to Evaluate Efficacy and Safety of Entelon 50mg in Patients With Non-Proliferative Diabetic Retinopathy

Sponsor
Hanlim Pharm. Co., Ltd. (Industry)
Overall Status
Recruiting
CT.gov ID
NCT05358080
Collaborator
(none)
396
1
2
30.7
12.9

Study Details

Study Description

Brief Summary

This clinical trial is a multi-center, double-blind, randomized, placebo controlled , parallel design, superiority, phase 4 study to evaluate the efficacy and safety of Entelon 50mg in 396 patients with non-proliferative diabetic retinopathy.

Condition or Disease Intervention/Treatment Phase
  • Drug: Entelon Tab. 50mg
  • Drug: Placebo
Phase 4

Detailed Description

This study is to prove that Entelon tab. 50mg is superior in clinical efficacy and safety compared to placebo for 24 months in patients suffering from non-proliferative diabetic retinopathy.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
396 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Multi-center, Randomized, Double-blind, Placebo-controlled, Superiority, Phase IV Trial to Evaluate the Efficacy and Safety of Entelon 50mg Compared to Placebo in Patients With Non-Proliferative Diabetic Retinopathy
Actual Study Start Date :
May 27, 2022
Anticipated Primary Completion Date :
Dec 16, 2024
Anticipated Study Completion Date :
Dec 16, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: Entelon Tab. 50mg

Drug: Entelon Tab. 50mg
twice daily for 24months
Other Names:
  • Vitis Vinifera Seed Dreid Extract 50mg
  • Placebo Comparator: Placebo

    Drug: Placebo
    twice daily for 24months

    Outcome Measures

    Primary Outcome Measures

    1. Proportion of subjects maintained or improved in DRSS level [24 months(Visit 10)]

      Change at 24 months of treatment with the drug from baseline(day 0) in DRSS(Diabetic Retinopathy Severity Scale) level

    Secondary Outcome Measures

    1. Proportion of subjects maintained or improved in DRSS level [12 months(Visit 6)]

      Change at 12 months of treatment with the drug from baseline(day 0) in DRSS(Diabetic Retinopathy Severity Scale) level

    2. Proportion of subjects maintained or improved or worsened in DRSS [12 months(Visit 6), 24 months(Visit 10)]

      Percentage of subjects with no change in DRSS(diabetic retinopathy severity scale) compared to baseline at 12 or 24 months compared to baseline, improved one or more levels, improved two or more levels, worsened one or more levels, and worsened two or more levels

    3. Amount of change BCVA letter [24 months(Visit 10)]

      Amount of change in BCVA(best corrected visual acuity) letters at 24 months relative to baseline

    4. Proportion of subjects improved or worsened in BCVA [24 months(Visit 10)]

      Proportion of subjects with improved five or more letters in BCVA(best corrected visual acuity) and worsened five or more letters at 24 months compared to baseline

    5. Change in quantitative of hard exudate [6 months(Visit 4), 12 months(Visit 6), 18 months(Visit 8), 24 months(Visit 10)]

      Amount and rate of change in quantitative of hard exudate through fundus photo

    6. Change in CMT and TMV [6 month(Visit 4), 12 month(Visit 6), 18 month(Visit 8), 24 month(Visit 10)]

      Amount of change in CMT(Central macular thickness) and TMV(Total macular volume)

    7. Proportion of subjects with CSME [through study completion, an average of 2 years]

      Proportion of subjects with CSME(Clinically significant macular edema)

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    19 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. 19 years ≤ age

    2. Those who are diagnosed as Type 2 diabetes mellitus

    3. Those whose blood sugar level has been well adjusted to less than 9% of HbA1c with dietary and oral blood sugar lowering durgs for 3 months based on the time of screening

    4. Those who agree to use an effective method of contraception

    5. Those who provide written consent voluntarily to participate in this clinical trial

    Inclusion criteria for the study eye

    1. Those with 0.5(20/40 Snellen lines) or more visual acuity

    2. Those with 300 micrometers or less central macular thickness

    3. Those who are diagnosed as mild to moderate NPDR(DRSS levels 35-47)

    Exclusion Criteria:
    1. Those who are diagnosed as proliferative diabetic retinopathy

    2. Those with macular edema

    3. Diabetic subjects who have difficulty in controlling blood sugar

    4. Those whose blood pressure is not well controlled at the time of the screening(>140/90mmHg)

    5. Those who, have had stroke or myocardial infarction or arrhythmia that should be treated within 6 months prior to the time of screening

    6. Subjects with severe renal disorder or severe liver disorder

    7. Those who have a history of malignant tumors within 5 years prior to the time of screening

    8. Those who are required to receive Kallidinogenase, Vaccinium myrtillus extract, Sulodexide, or Calcium dobesilate during the clinical trial period

    9. Those who have an allergy to investigational product or any of its excipients

    10. Those who have an allergy to fluorescein

    11. Those who have galactose intolerance, lapp lactase deficiency, or glucose-galactose malabsorption

    12. Those who have difficulty to get OCT test or Fundus photo test

    13. Pregnant or lactating woman

    14. Those with medication of other investigational product within 3 months prior to the time of randomization

    15. Patients who are considered to be ineligible for study participation by the investigator

    Exclusion criteria for the study eye

    1. Those who have a visual defect that can affect the evaluation determined by an investigator

    2. Those who have a opacity that can affect the evaluation determined by an investigator

    3. Those who have eye diseases that can affect the evaluation determined by an investigator

    4. Those with 25mmHg or more intraocular pressure on a study eye

    5. Those who are on medication of intravitreal injection of steroid or anti VEGF treatment or get laser photocoagulation within 6 months prior to the first administration

    6. Those who have a history of a vitrectomy

    7. Those who have a major ophthalmic surgery history within 3 months prior to the time of first administration for investigational products

    8. Those who have a history of yttrium aluminum garnet capsulotomy within 2 months prior to the time of first administration for investigational products

    9. Those with a phakia

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Hallym University Kangnam Sacred Heart Hospital Seoul Korea, Republic of

    Sponsors and Collaborators

    • Hanlim Pharm. Co., Ltd.

    Investigators

    • Principal Investigator: Ha Kyoung Kim, Hallym University Kangnam Sacred Heart Hospital

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Hanlim Pharm. Co., Ltd.
    ClinicalTrials.gov Identifier:
    NCT05358080
    Other Study ID Numbers:
    • HL-ENTL-402
    First Posted:
    May 3, 2022
    Last Update Posted:
    Jul 21, 2022
    Last Verified:
    Jul 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Jul 21, 2022