efficacy, safety, pharmacokinetiсs, immunogenicity of gnr-067 and lucentis®

Conditions: Age Related Macular Degeneration (ARMD)

Summary: this is a randomized, double-blind, comparative, parallel group study of the efficacy, safety pharmacokinetics, and immunogenicity of gnr-067 and lucentis® in patients with neovascular (wet) age-related macular degeneration.

age-related macular degeneration (armd) is a chronic progressive disease that is the main cause of visual disability in elderly patients (aged over 60 years) in industrialized countries. due to increased human longevity, it is expected for the number of patients with this disease to grow worldwide up to 288 million people by 2040. the highest risk of vision loss is posed by neovascular (exudative or wet armd) macular degeneration observed in 10-20% of cases. the pathological changes of armd are based on the increased production of the vascular endothelial growth factor (vegf) which affects proprioceptors located on the surface of endothelial cells and causes an anomalous permeability of vessels and stimulates neovascularization gnr-067 (jsc "generium", the russian federation) is a humanized recombinant monoclonal antibody selectively binding to the human vascular endothelial growth factor \[vegf-a\] and is a biosimilar of of the original product lucentis® ("novartis pharma ag", switzerland). this iii phase study is aimed to compare the effectiveness, safety, pharmacokinetics and immunogenicity of gnr-067 (jsc "generium", the russian federation) and lucentis® ("novartis pharma ag", switzerland) in order to register of the drug gnr-067 (jsc "generium", the russian federation), a solution for intraocular injection administration, in the russian federation. the study included patients (n = 408) aged 50 years and older with neovascular (wet) age-related macular degeneration, types 1 and 2 (occult and classical) choroidal neovascularization (cnv) with the following activity signs: accumulation of intraretinal and/or subretinal (under the neurosensory retina or pigment epithelium) fluid, extravasal dye exit from the newly formed vessels, and the presence of a subfoveal and/or juxtafoveal membrane and the presence of cnv foci of more than 50% of the total lesion area. with block randomization, the patients were divided into two groups in a 2:1 ratio (investigational/reference product): 272 patients to the group of the investigational product gnr-067 and 136 patients to the group of the reference product lucentis®. the duration of the study for each patient will be approximately 52 ± 4 weeks, including a screening period (3 weeks), treatment period and a follow-up period (4 weeks). in this study gnr-067 and lucentis® will be used intravitreally once every 4 weeks (thirteen injections in total) in 0.5 mg doses (the injection volume is 0.05 ml).

Eligibility criteria:
inclusion criteria: 1. men and women aged 50 years and older; 2. the signed informed consent obtained from the patient, or, in cases of severe visual impairment in the patient, with the participation of an impartial witness, prior to any study-related procedures. ophthalmic inclusion criteria (must be present in one eye, which will be considered the examined eye) 3. the previously diagnosed neovascular (wet) age-related macular degeneration confirmed at the screening visit: untreated, except for food supplement, vitamins, mineral additives (one examined eye in one patient); types 1 and 2 (occult and classical) choroidal neovascularization (cnv) with the following activity signs: accumulation of intraretinal and/or subretinal (under the neurosensory retina or pigment epithelium) fluid, extravasal dye exit from the newly formed vessels, and the presence of a subfoveal and/or juxtafoveal membrane and the presence of cnv foci of more than 50% of the total lesion area; 4. the best-corrected visual acuity within a range from 34 to 83 letters (20/200 to 20/25) measured using the etdrs chart early treatment diabetic retinopathy study research group protocol (chart at a distance of 4 m) before pupil dilation; 5. the willingness and ability of the patient to perform all planned study visits and procedures (according to the investigator); 6. iop ≤21 mmhg (actual); 7. an ecg within normal values or clinically insignificant findings. exclusion criteria: 1. medical history of cnv treatment with intravitreal injections of vegf inhibitors (ranibizumab, bevacizumab, aflibercept, or pegaptanib, etc.), or any other investigational poducts into the examined eye; 2. medical history of subretinal laser photocoagulation or other surgical interventions for armd in any eye; 3. preexisting and current lesions, diseases, or interventions in the eyes.: in the examined eye: keratoplasty or corneal dystrophy capsulotomy performed 4 weeks prior to screening aphakia, vitrectomy presence of a macular hole at any stage past rhegmatogenous retinal detachment any other past intraocular surgical interventions in the examined eye (including cataract extraction in the examined eye) within 3 months prior to the screening visit in any eye: choroidal neovascularization in any eye due to reasons not related to armd (for example, multifocal choroiditis, ocular histoplasmosis syndrome, injury, etc.) past idiopathic or autoimmune uveitis in any eye scleromalacia diagnosed diabetic retinopathy current conditions and diseases identified at the screening stage: high degree myopia (over 8 diopters) in any eye; presence of progressive glaucoma (intraocular pressure ≥21 mmhg against performed antihypertensive glaucoma therapy) or optic neuropathy that affect or endanger the central field of view in the examined eye at the screening stage; subretinal hemorrhage and/or hemorrhage in the retinal tissue occupying ≥50% of the total affected area in the examined eye; presence of a rupture (solution of continuity) of the retinal pigment epithelium (rpe) also extending to the macula in any eye; a scar or subretinal fibrosis in the macular area occupying more than 50% of the total affected area in any eye; presence of vitreomacular traction or epiretinal membrane significantly affecting central vision; other than armd progressive retinal diseases in the examined or fellow eye that may complicate the assessment of visual acuity; the total size of the lesion is more than 12 disc areas (da: 30.5 mm2 including areas occupied by blood, neovascularization, or fibrosis), based on a fag performed at screening; confirmed or assumed (within 28 days prior to the screening visit) intraocular, extraocular, and periocular inflammation or infection in any eye. 4. any intravitreal injections of corticosteroids (e.g., triamcinolone acetonide) for ≥30 days in a row in the examined eye 90 days prior to the screening visit and/or injection of an intravitreal corticosteroid implant with a gradual release of the medicinal product into the examined eye within 180 days prior to the screening visit; 5. known allergic reactions and/or hypersensitivity to lucentis® (ranibizumab) or any ingredients of gnr-067; 6. known allergic reactions and/or hypersensitivity to fluorescein sodium (for injections); 7. uncontrolled arterial hypertension (bp ≥180/90 mmhg); 8. diseases of the immune and endocrine system, not controlled by drug therapy (including decompensated diabetes mellitus and thyroid diseases); 9. medical history or current (active cancer)of oncological diseases with the exception of cured basal cell carcinoma; 10. vaccination (any vaccine) within 30 days prior to the screening visit and/or the need for vaccination during the study period; 11. systemic treatment with corticosteroids (more than 10 mg of prednisolone equivalent) within 6 months prior to the screening visit; 12. use of systemic medicinal products known to be toxic for the eye lens, retina, or optic nerve during the study. 13. medical history of a clinically significant pathology identified during the screening period including, but not limited to: unstable angina pectoris, myocardial infarction, arrhythmia requiring drug therapy, class iii or iv congestive heart failure according to the new york heart association classification within one year before the screening visit; brain injury, stroke, or transient ischemic attack within one year prior to the screening visit; severe renal failure (estimated glomerular filtration rate according to the ckd-epi formula \<40 ml/min/1.73 m2); severe hepatic impairment (serum alanine aminotransferase (alt) and/or aspartate aminotransferase (ast) activity of 2.5 or more times higher than the laboratory upper limit of normal (uln), and/or the level of total bilirubin of 1.5 or more times higher than the laboratory uln); variation of peripheral blood parameters: leukocytes: \<3.8 × 109/l platelets: \<100 × 109 cells/l hemoglobin: ≥10.0 g/dl 14. pregnancy and breastfeeding; 15. patients who received blood or blood component transfusions within 10 days prior to the screening visit; 16. history (within three years prior to the screening visit) of tuberculosis, alcoholism, narcotic, drug dependence and/or substance abuse, or presence of the above at the screening stage; 17. acute hepatitis or liver cirrhosis of any etiology; antibodies to hepatitis c or hbsag at the screening visit; acquired immune deficiency syndrome or infection with human immunodeficiency virus (hiv) confirmed by test results; 18. participation of the patient in any clinical studies and/or use of experimental medicinal products within 3 months prior to the screening visit.