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The Effect of Orally Administered Extracts of Chokeberry, Kamchatka Berry and Blueberry on the Condition of the Eye.

NCT07382882 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 27

Last updated 2026-02-06

No results posted yet for this study

Summary

This study evaluated whether a standardized berry-extract dietary supplement (AKB; Aronia melanocarpa, Lonicera caerulea, Vaccinium myrtillus) improves visual function in adults with presbyopia. In a randomized, double-blind, placebo-controlled two-period crossover design, participants received AKB 400 mg twice daily and placebo for 6 weeks each, separated by a 5-week washout. Visual function and retinal/neuronal measures were assessed with contrast sensitivity testing, visual fields, VEP, and OCT/AngioOCT. Serum biomarkers related to lens and retinal physiology were also measured.

Conditions

Interventions

DIETARY_SUPPLEMENT

AKB

Standardized berry extract (Aronia melanocarpa, Lonicera caerulea, Vaccinium myrtillus), 400 mg capsule, BID, 6 weeks

OTHER

Placebo

Matching placebo capsules (maltodextrin + colouring), BID, 6 weeks

Sponsors & Collaborators

  • Wroclaw Medical University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-11-03
Primary Completion
2023-03-07
Completion
2025-08-15

Countries

  • Poland

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07382882 on ClinicalTrials.gov