A Randomized, Double Masked, Three Dose Safety and Pharmacokinetic Study of RTH258 Following Intravitreal (IVT) Injection in Subjects With Neovascular Age-Related Macular Degeneration
Trial Snapshot
- Phase
- Phase 2
- Status
- Completed
- Sponsor
- Alcon Research
- Enrollment
- 51
- Primary Endpoint
- Maximum Analyte Serum Concentration [Cmax (ng/mL)]
Study Overview
Brief Summary
The purpose of this study is to assess the systemic pharmacokinetics (PK) and safety of 2 different doses of brolucizumab (3 milligrams (mg)/50 microliters (μL) and 6 mg/50 μL) when administered at 4-week intervals for a total of 3 intravitreal injections in subjects with neovascular age-related macular degeneration (AMD).
Detailed Description
This study has 2 arms with a 1:1 randomization. Randomization will be stratified by Japanese ethnicity. Half of the subjects in each arm will be of Japanese ethnicity. The other half of the subjects in each arm will be non-Japanese. Subjects in both arms will have visits at Screening, Day 0 (Baseline), Day 1 (24 hours post first injection), Day 3, Day 14, Day 21, Day 28, Day 56, Day 57 (24 hours post the injection on Day 56) and Day 84.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Other
- Masking
- Double (Participant, Investigator)
Eligibility Criteria
- Ages
- 50 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Provide written informed consent;
- •Active choroidal neovascularization (CNV) lesions secondary to AMD that affect the central subfield in the study eye;
- •Best Corrected Visual Acuity (BCVA) > 23 letters in the study eye at Baseline;
- •50 years of age or older at the time of Screening.
Exclusion Criteria
- •Any active ocular infection or inflammation;
- •Treatment with aflibercept (EYLEA®), bevacizumab (AVASTIN®), ranibizumab (LUCENTIS®), brolucizumab, or an investigational drug for neovascular AMD prior to enrollment in the study, as specified in protocol;
- •Ocular surgery in the study eye, as specified in protocol;
- •Uncontrolled glaucoma in the study eye, as specified in protocol;
- •Use of steroids in the study eye, as specified in protocol;
- •Medical conditions that may prevent study completion;
- •Pregnant or nursing (lactating) women;
- •Women of child-bearing potential unless using contraception;
- •Uncontrolled blood pressure, as specified in protocol;
- •Other protocol-specified exclusion criteria may apply.
Arms & Interventions
Brolucizumab 3 mg
Brolucizumab 3 mg/50 μL administered as an intravitreal injection 3 times at 4-week intervals with follow-up for 84 days from the initial injection
Intervention: Brolucizumab 3 mg/50 μL (Drug)
Brolucizumab 6 mg
Brolucizumab 6 mg/50 μL administered as an intravitreal injection 3 times at 4-week intervals with follow-up for 84 days from the initial injection
Intervention: Brolucizumab 6 mg/50 μL (Drug)
Outcomes
Primary Outcomes
Maximum Analyte Serum Concentration [Cmax (ng/mL)]
Time Frame: Day 0 (predose), 6 hr, 24 hr, 72 hr, 168 hr, 336 hr, 504 hr, 672 hr
Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Elimination Half-life in Serum [t1/2 (h)]
Time Frame: Day 0 (predose), 6 hr, 24 hr, 72 hr, 168 hr, 336 hr, 504 hr, 672 hr
Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Time to Reach Maximum Analyte Serum Concentration [Tmax (h)]
Time Frame: Day 0 (predose), 6 hr, 24 hr, 72 hr, 168 hr, 336 hr, 504 hr, 672 hr
Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Concentration of RTH258 Obtained 24 Hours Post Day 0 Injection [C24hr (ng/mL)]
Time Frame: Day 1
Serum concentration at the specified collection time point was quantitated, where possible, using a validated immunoassay method. The data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Area Under the Serum Concentration-time Curve From Time Zero to the Time of the Last Quantifiable Concentration [AUC0-tlast (ng*h/mL)]
Time Frame: Day 0 (predose), 6 hr, 24 hr, 72 hr, 168 hr, 336 hr, 504 hr, 672 hr
Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Area Under the Concentration-time Curve From 0 to Infinity [AUC0-inf (ng*h/mL)]
Time Frame: Day 0 (predose), 6 hr, 24 hr, 72 hr, 168 hr, 336 hr, 504 hr, 672 hr
Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Concentration of RTH258 Obtained 24 Hours Post Day 56 Injection [C24hr (ng/mL)]
Time Frame: Day 57
Serum concentration at the specified collection time point was quantitated, where possible, using a validated immunoassay method. The data were analyzed using a noncompartmental pharmacokinetic (PK) method.
Secondary Outcomes
- Percentage of Subjects With Positive Anti-drug Antibody (ADA) Status (Test)(Day 0 (predose), Day 28, Day 84)