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Clinical Trial Summary

Title: Intravitreal faricimab in diabetic macular edema with limited response to aflibercept Purpose: The purpose of this investigator initiated study is to identify the effects of intravitreal faricimab on recurrence-free treatment intervals and morphological features in diabetic macular edema (DME) in which the Optical coherence tomography (OCT) guided treatment interval failed to be extended to 6 weeks intervals in a treat and extend regimen using aflibercept. Objectives: The primary objective is to evaluate the proportion of patients with an increased maximum treatment interval with intravitreal faricimab (compared to previous 4-week interval under aflibercept) in an OCT guided treat and extend regimen at month 6 and 12. (for further outcome measures see section Objectives)


Clinical Trial Description

Title: Intravitreal faricimab in diabetic macular edema with limited response to aflibercept Study purpose: The purpose of this investigator initiated study is to identify the effects of intravitreal faricimab on recurrence-free treatment intervals and morphological features in diabetic macular edema (DME) in which the Optical coherence tomography (OCT) guided treatment interval failed to be extended to 6 weeks intervals in a treat and extend regimen using aflibercept. Objectives: The primary objective is to evaluate the proportion of patients with an increased maximum treatment interval with intravitreal faricimab (compared to previous 4-week interval under aflibercept) in an OCT guided treat and extend regimen at month 6 and 12. The secondary objectives are: - The mean maximum treatment interval with intravitreal faricimab at month 6 and 12. - The number of treatments applied during the 12 months study period. - The mean change in BCVA (Best Corrected Visual Acuity) from baseline (=switch to faricimab) to month 6 and 12. - To compare the mean BCVA at baseline (=switch to faricimab) and month 6/12 in patients with extended treatment intervals under faricimab. - The mean change in CS (Contrast Sensitivity) from baseline (=switch to faricimab) to month 6 and 12. - The mean change in AllEye index (metamorphopsia index) from baseline (=switch to faricimab) to month 6 and 12. - The mean change in central retinal thickness as measured in the central ETDRS ( Early Treatment Diabetic Retinopathy Study) subfield from baseline (=switch to faricimab) to month 6 and 12. - To compare the incidence of qualitative OCT features like intraretinal fluid, subretinal fluid, and hyperreflective foci between baseline (=switch to faricimab) and month 6 and 12. - Percentage of patients achieving a dry retina at month 6 and 12. - The mean changes in FAZ (foveal avascular zone) area and vessel density as measured by OCT-Angiography (OCTA) from baseline (=switch to faricimab) to month 6 and 12. - The change in quality of life (VFQ-25 scores) from baseline to 6 and 12 months. - To evaluate the safety and tolerability of up to 4weekly dosing of faricimab in DME by determining the rates of adverse events and serious adverse events at 6 and 12 month Population: This outpatient study population will consist of a representative group of male and female patients ≥ 18 years of age suffering from DME with a treatment interval of 4 weeks under aflibercept. All patients are pre-treated with intravitreal aflibercept for at least 6 months in a treat and extend regimen. For In-/Exclusion criteria see section Eligibility. Sample size will be 30. This is a pilot study investigating faricimab in pretreated aflibercept high demanders with DME using a real-life like treat and extend schema. So far this population has not been investigated with faricimab. In the context of recent market approval in Switzerland a timely start of the study to generate prospective data in this population with the highest treatment burden is recommended. Measurements and Procedures: All consenting, enrolled patients will receive an intravitreal injection of faricimab 6 mg at baseline (week 0), at week 4, 8, 12 (=4x loading) and each of the following treat and extend visits. From visit 4 (week 12) onwards extension of treatment intervals is possible 2-week-stepwise, e.g. 4, 6, 8 weeks etc. Starting at week 12 at each visit the next treat and extend interval (and so the exact date of the next visit) will be defined depending on the following criteria: 1. Presence of any DME activity including: - sub- and/or intraretinal fluid within the central ETDRS (Early Treatment Diabetic Retinopathy Study) subfield and/or ETDRS inner ring → new treatment interval = last treatment interval reduced by 2 weeks but minimum interval is 4 weeks, which means 4 weeks interval stays at 4 weeks, 6 weeks interval is reduced to 4 weeks etc 2. No signs of DME activity: → new treatment interval = last treatment interval plus 2 weeks 3. If there was 2 times a recurrence at a certain interval, in this patient the treatment interval stays at the 2 weeks lower interval. Efficacy assessment at 3 months is within loading phase; for efficacy assessments after 6, 9 and 12 months a treat and extend visit which takes place within 2 weeks before/after (meaning 24±2 weeks, 36±2 weeks and 48±2 weeks, respectively) can replace an extra assessment visit as far as the required examinations are performed. Efficacy assessments: - Spectral-domain Optical coherence tomography (SD-OCT) at each study visit from baseline through month 12. - Best corrected visual acuity (BCVA) measurements using the ETDRS-testing charts at a testing distance of 4m following ETDRS (Early Treatment Diabetic Retinopathy Study) refraction protocol at baseline, week 4, month 3, 6, 9 and 12. - Contrast sensitivity measurement at baseline, week 4, month 3, 6, 9, 12. - AllEye metamorphopsia measurement (self-test) at baseline and at each study visit from baseline through month 12. - Swept-source OCT-Angiography at baseline, month 3, 6, 9, 12. - Fluorescein angiography (FA) at baseline and month 12. - Quality of life questionnaires VFQ-25 at baseline and month 6 and 12. Other assessments: - Ophthalmic examinations (slit lamp exam, fundus ophthalmo-scopy, Intraocular pressure (IOP) by applanation tonometry) - Color fundus photography at baseline and month 12. - Vital signs: heart rate (HR), blood pressure (BP) - Adverse events (ocular and non-ocular) Study Product / Intervention: This study will include the following drug: Investigational therapy • Faricimab (Vabysmo®) 6 mg solution for intravitreal injection The drug is supplied as a sterile liquid for intravitreal injection in single-use glass vials (commercial product as approved in Switzerland). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05610488
Study type Interventional
Source Vista Klinik
Contact Judith Buck
Phone 0041 61 426 6079
Email judith.buck@vista.ch
Status Not yet recruiting
Phase Phase 4
Start date November 2022
Completion date December 2023

See also
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