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Geographic Atrophy Long-Terms Outcomes Study

G.A.L.T.O.S. Geographic Atrophy Long-Terms Outcomes Study: An Ambispective Noninterventional Study to Describe the Patient Demographics and Outcomes of Patients With Geographic Atrophy (GA) Secondary to AMD in Clinical Practice

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06499571
Acronym
GALTOS
Enrollment
255
Registered
2024-07-12
Start date
2022-09-01
Completion date
2023-07-31
Last updated
2024-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Geographic Atrophy

Keywords

GA Outcomes

Brief summary

The purpose of this study is to describe functional and long-term clinical outcomes of patients with a diagnosis of Geographic Athrophy secondary to Age related Macular Degenaration in Clinical Practice

Interventions

None listed

Sponsors

Iqvia Pty Ltd
CollaboratorINDUSTRY
Apellis Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inclusion criteria for patients: * Aged 60 years or over at the time of GA diagnosis * Patients providing informed consent to participate in the study; if the patient is physically incapable of completing the electronic consent form, the form can be completed by a legally acceptable representative of the patient (including an impartial witness, where required) * Patients first diagnosed with GA in at least 1 eye between 3 and 10 years prior to index date * For patients with unilateral GA, the other eye should show signs of AMD (i.e., the non-GA eye should present with at least drusen, reticular pseudodrusen, or wet-AMD) Inclusion criteria for caregivers: * Aged 18 years or over at the time of consent * Caregivers who self-identify as the primary caregiver for a patient for whom documented informed consent for inclusion in the study has been obtained

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in GA total area sizeThrough study completion; between 4 and 11 yearsMean GA total area size and Mean change in GA total area size
Change from baseline in BCVAThrough study completion; between 4 and 11 yearsMean BCVA and Mean change in BCVA
Percentage of participants with visual impairment/blindnessThrough study completion; between 4 and 11 yearsPercentage of participants with moderate/severe visual impairment or blindness
Percentage of participants with microperimetry assessmentThrough study completion; between 4 and 11 yearsPercentage of participants with any microperimetry assessments since GA diagnosis
Mean change in functional parameters in patients with microperimetry assessmentsThrough study completion; between 4 and 11 yearsMean/Median and Mean change in retinal sensitivity.
Percentage of eyes with disease progressionThrough study completion; between 4 and 11 yearsPercentage of eyes that complete any of the protocol-defined disease progression trajectories and Mean time from GA diagnosis to disease progression

Secondary

MeasureTime frameDescription
Assisted-care patient journeyFrom enrollment until end of follow-up; 12 (+6) months after the follow-up period.Proportion of patients requiring support from an informal caregiver, receiving assisted care at home or in assisted living
Proportion of GA eyes with presence of selected characteristicsThrough study completion; between 4 and 11 yearsProportion of GA eyes with presence of any of the following: nAMD, drusen, pseudodrusen, foveal involvement, unifocal/multifocal GA, hypopigmentation
Associations between patient characteristics and disease progression/functional outcomes and/or clinical/anatomical/functional outcome measuresThrough study completion; between 4 and 11 yearsMeasures of association such as correlation coefficients, chi-square statistic, and potentially coefficients from multivariate analysis methods characterizing the relationships of interest
Financial impact of GA on patients and caregiversFrom enrollment until end of follow-up; 12 (+6) months after the follow-up period.Selected items of the GALTOS survey (including the cost, in the past 12 months, associated to prescriptions, assistive devices, healthcare-related travel, etc.)
Proportion of non-GA eyes with presence of AMDThrough study completion; between 4 and 11 yearsProportion of non-GA eyes with presence of any of the following: early/intermediate AMD, nAMD, MNV
Mortality rateFrom enrollment until end of follow-up; 12 (+6) months after the follow-up period.Mortality rate during study follow-up
GA-related HCRU during the observation periodThrough study completion; between 4 and 11 yearsNumber of medical visits (outpatient, low vision clinic, etc.)
Patient-reported HRQoLFrom enrollment until end of follow-up; 12 (+6) months after the follow-up period.Score of the EQ-5D.
Patient-reported performanceFrom enrollment until end of follow-up; 12 (+6) months after the follow-up period.Scores/answers to the NEI-VFQ-25 questionnaire.

Countries

Australia, France, Germany, Italy, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026