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CLG561

Phase 2

Geographic Atrophy | Small molecule | Ophthalmology |Alcon Inc.|Last Updated: May 30, 2019

Success Probability

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Market & Valuation

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Trial Design

RandomizedSHAM_CONTROLLED
Total Trials1
Total Enrollment114

FDA Designations

No designations recorded

Clinical trial landscape

CLG561 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT02515942CLG561 Proof-of-Concept Study as a Monotherapy and in Combination With LFG316 in Subjects With Geographic Atrophy (GA)Geographic Atrophy
COMPLETED114 Analytics
PHASE2COMPLETED
CLG561 Proof-of-Concept Study as a Monotherapy and in Combination With LFG316 in Subjects With Geographic Atrophy (GA)
Geographic AtrophyUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects With a Serious Adverse Event That, in the Opinion of the Investigator, is Related to the Study Drug
Up to Day 421

A serious adverse event (SAE) was defined as any adverse experience that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event. All SAEs related to the study drug are reported. No statistical analysis was conducted.

Mean Change From Baseline in Intraocular Pressure (IOP)
Baseline (Day 1), Day 29, Day 57, Day 85, Day 113, Day 141, Day 169, Day 197, Day 225, Day 253, Day 281, Day 309

IOP (fluid pressure inside the eye) was measured by Goldmann applanation tonometry and reported in millimeters of mercury (mmHg). A higher IOP can be a greater risk for developing glaucoma or glaucoma progression (leading to optic nerve damage). Baseline is defined as the last measurement prior to first dose of treatment. A more negative change indicates a greater amount of improvement. One eye (study eye) contributed to the analysis. No statistical analysis was conducted.

Change in GA Lesion Size From Baseline to Day 337 as Measured by Fundus Autofluorescence (FAF)
Baseline (Day 1), Day 337

Geographic atrophy, also known as atrophic age-related macular degeneration (AMD) or advanced dry AMD, is an advanced form of age-related macular degeneration that can result in the progressive and irreversible loss of retina which can lead to a loss of visual function over time. Geographic atrophy (GA) lesion size was assessed by a Central Reading Center (CRC) using FAF. Baseline is defined as the last measurement prior to first dose of treatment. One eye (study eye) contributed to the analysis.

Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) by Visit - Study Eye
Baseline, Day 2, Day 4, Day 15, Day 29, Day 57, Day 85

BCVA (with spectacles or other visual corrective devices) using Early Treatment Diabetic Retinopathy Study (ETDRS) testing was reported in letters read correctly. Improvement of BCVA was defined as an increase (gain) in letters read from the baseline assessment. One eye (study eye) contributed to the analysis.

Mean Intra-Ocular Pressure (IOP) by Visit - Study Eye
Baseline, Day 1, Day 2, Day 4, Day 15, Day 29, Day 57, Day 85

IOP was measured by Goldmann applanation tonometry or tonopen, at the discretion of the Investigator, and reported in mmHg (millimeters of mercury). A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). One eye (study eye) contributed to the analysis.

Number of Subjects With Change From Normal to Abnormal in Fundus Examination at Any Post-Therapy Visit as Compared to Baseline Assessment
Baseline, Day 2, Day 4, Day 8, Day 15, Day 29, Day 57, Day 85

A dilated fundus examination was performed to evaluate the health of the retina, macula, choroid, and optic nerve. Subjects having a normal baseline evaluation were examined at subsequent visits, and any change from normal to abnormal was recorded. Criteria for reclassifying from normal to abnormal were left to the opinion of the investigators. One eye (study eye) contributed to the analysis. None of the abnormalities were deemed related to the study medication.

Number of Subjects With a Change From Normal to Abnormal in Ocular Signs at Any Post-Therapy Visit as Compared to Baseline Assessment
Baseline, Day 2, Day 4, Day 8, Day 15, Day 29, Day 57, Day 85

A slit-lamp biomicroscopy examination was performed to evaluate the anterior segment of the eye. Subjects having a normal baseline evaluation were examined at subsequent visits, and any change from normal to abnormal was recorded. Criteria for reclassifying from normal to abnormal were left to the opinion of the investigators. One eye (study eye) contributed to the analysis. None of the abnormalities were deemed related to the study medication.

Secondary Endpoints

Change in GA Lesion Size From Baseline to Day 85, 169, and 253 as Measured by FAF
Baseline (Day 1), Day 85, Day 169, Day 253
Mean Change in GA Lesion Size From Baseline to Day 421 as Measured by FAF
Baseline (Day 1), Day 421
Change in Best Corrected Visual Acuity (BCVA) From Baseline by Visit up to Day 337 as Measured by Early Treatment Diabetic Retinopathy Study (ETDRS)
Baseline (Day 1), Day 2, Day 8, Day 15, Day 29, Day 30, Day 57, Day 85, Day 113, Day 141, Day 169, Day 197, Day 225, Day 253, Day 281, Day 309, Day 337
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Study Design & Arms

AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
CLG561EXPERIMENTALCLG561 10 mg, one IVT injection every 28 days for a total of 12 injections
CLG561+LFG316EXPERIMENTALCLG561 5mg + LFG316 5 mg, one IVT injection every 28 days for a total of 12 injections
Sham InjectionSHAM_COMPARATOROne sham injection every 28 days for total of 12 sham injections
CLG561, Concentration Level AEXPERIMENTALSingle 50 μL intravitreal injection of CLG561, Dose Level A
CLG561, Concentration Level BEXPERIMENTALSingle 50 μL intravitreal injection of CLG561, Dose Level B
CLG561, Concentration Level CEXPERIMENTALSingle 50 μL intravitreal injection of CLG561, Dose Level C
CLG561, Concentration Level DEXPERIMENTALSingle 50 μL intravitreal injection of CLG561, Dose Level D
CLG561, Concentration Level EEXPERIMENTALSingle 100 μL intravitreal injection of CLG561, Dose Level E

Interventions

NameTypeDescription
CLG561DRUG -
LFG316DRUG -
Sham injectionDRUGEmpty syringe (without a needle) placed against the eye
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Eligibility Criteria

Age Range50 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Sign written informed consent form; * Geographic atrophy in both eyes; * Other protocol-specified inclusion criteria may apply. Exclusion Criteria: * Pregnant or lactating women and women of child-bearing potential; * Any medical condition (systemic or ophthalmic) that may p...

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Frequently asked questions about CLG561

What is CLG561 used for?

CLG561 is an investigational small molecule being developed by Alcon Inc. for the treatment of age-related macular degeneration and geographic atrophy, a late stage of the disease. It is currently in clinical development and is not approved by the FDA.

What does CLG561 target?

The molecular target of CLG561 has not been disclosed in available information. It is a small molecule being studied for its effects on age-related macular degeneration and geographic atrophy, but its specific mechanism of action is not publicly detailed.

Who makes CLG561?

CLG561 is being developed by Alcon Inc., a company traded on the New York Stock Exchange under the ticker symbol ALC. Alcon is conducting clinical trials to evaluate the drug's safety and efficacy in patients with advanced age-related macular degeneration and geographic atrophy.

What phase is CLG561 in?

CLG561 has completed a Phase 1 trial and a Phase 2 trial. The Phase 1 study evaluated its pharmacokinetics in patients with advanced age-related macular degeneration, and the Phase 2 study tested it as a monotherapy and in combination with LFG316 in subjects with geographic atrophy.

What clinical trials is CLG561 in?

CLG561 has been studied in two completed trials. NCT01835015 was a Phase 1 pharmacokinetics study in 50 patients with advanced age-related macular degeneration. NCT02515942 was a Phase 2 proof-of-concept study in 114 subjects with geographic atrophy, testing CLG561 alone and with LFG316.

Is CLG561 the same as LFG316?

No, CLG561 is not the same as LFG316. In a Phase 2 clinical trial, CLG561 was tested both as a monotherapy and in combination with LFG316, indicating they are separate investigational drugs being evaluated together for geographic atrophy.