NCT05735730

Brief Summary

The goal of this Cross-sectional, interventional study is to learn about whether different risk factors, as Mediterranean diet, lifestyle and concomitant medication can modulate the risk imprinted by genetics in Age-related macular degeneration (AMD). The main question it aims to answer is: How the genetic risk interacts with environmental and lifestyle factors, especially Mediterranean diet and chronic medication, in order to assess how this interplay protects or presents higher risk for the establishment or the progression of AMD. Participants: Vital Signs will be measured; Medical History, Demographics, Nutritional/lifestyle habits and Family History of AMD will be recorded; Ophthalmological Examination will be performed Genetic analysis will be performed.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,800

participants targeted

Target at P75+ for not_applicable

Timeline
20mo left

Started Jun 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress63%
Jun 2023Jan 2028

First Submitted

Initial submission to the registry

December 22, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 21, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

June 26, 2023

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 6, 2025

Completed
2.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 12, 2028

Expected
Last Updated

September 23, 2025

Status Verified

May 1, 2025

Enrollment Period

1.6 years

First QC Date

December 22, 2022

Last Update Submit

September 22, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Development of AMD

    Assessment of the presence or absence of AMD.

    18 months

Secondary Outcomes (4)

  • To evaluate how diet, physical activity level, body mass index, smoking, and chronic medication correlate with the development of AMD, determining if they are protective or risk factors.

    18 months

  • Genetically characterize the population and the presence of common and rare variants associated with AMD.

    18 months

  • The 10-year incidence of AMD in the inland population.

    18 months

  • Identify genotypic-phenotypic correlations.

    18 months

Study Arms (1)

Epidemiologic study

OTHER

This is an epidemiologic study. No arms are considered.

Other: Blood draw

Interventions

The study intervention consists of a blood draw for genetic analysis.

Epidemiologic study

Eligibility Criteria

Age55 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult subjects residing in the Lousã region who participated in the epidemiologic study;
  • Subjects capable of understanding the information about the study and to give their written informed consent to enter the study;
  • Subjects willing and able to comply with the study procedures.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

AIBILI-CEC (AIBILI- Clinical Trials Centre)

Coimbra, 3000-548, Portugal

Location

MeSH Terms

Conditions

Macular Degeneration

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Retinal DegenerationRetinal DiseasesEye Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 22, 2022

First Posted

February 21, 2023

Study Start

June 26, 2023

Primary Completion

February 6, 2025

Study Completion (Estimated)

January 12, 2028

Last Updated

September 23, 2025

Record last verified: 2025-05

Locations