This clinical study is designed as a randomized, double-blind trial. Subjects with unresectable, metastatic, or recurrent skin melanoma will be randomized to one of the two study groups (BCD-201 group and Keytruda group) at a 1:1 ratio. The goal of this study is to compare the efficacy and safety of BCD-201 and Keytruda as first-line therapy in subjects with unresectable, metastatic, or recurrent skin melanoma.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
366
Budgetary healthcare institution of the Omsk region "Clinical oncological dispensary"
Omsk, Russia
"Saint Petersburg Clinical Research and Practice Center for Specialized Medical Care (Oncology)"
Saint Petersburg, Russia
Federal State Budgetary Educational Institution of Higher Education "Saint Petersburg State University"
Saint Petersburg, Russia
To compare the overall response rate (ORR) in the BCD-201 group and the Keytruda group
ORR according to RECIST 1.1
Time frame: 24 weeks of treatment
To compare the ORR according to iRECIST in the BCD-201 group and the Keytruda group
ORR according to iRECIST
Time frame: every 12 weeks up to 2 years
To compare the duration of response in the BCD-201 group and the Keytruda group
Duration of response will be calculated from the moment of registration of response till event (progression or death)
Time frame: up to 2 years
To compare the time to response according to RECIST 1.1 and iRECIST in the BCD-201 group and the Keytruda group
time to response will be calculated from the randomization date
Time frame: every 12 weeks up to 2 years
To compare the disease control rate in the BCD-201 group and the Keytruda group
The percentage of the participants who have a Complete Response, a Partial Response or a Stable DIsease
Time frame: up to 2 years
To compare the progression-free survival (PFS) per RECIST 1.1 and iRECIST in the BCD-201 group and the Keytruda group
The time from the date of randomization until progression of disease according to RECIST 1.1 / iRECIST criteria or death
Time frame: up to 2 years
To compare the overall survival in the BCD-201 group and the Keytruda group
The time from the date of randomization until death
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Time frame: up to 2 years
To compare the incidence of Treatment-Emergent Adverse Events (Safety profiles of BCD-201 and Keytruda)
Presence of any adverse events (AEs), presence of adverse reactions (ARs), presence of serious adverse reactions (SARs), presence of severe ARs (grade 3 or higher severity according to CTCAE v.5.0), presence of ARs leading to discontinuation of study therapy, presence of immune-mediated AEs
Time frame: through study completion, an average of 2 years.
Area under the concentration-time curve (AUC(0-504))
Area under the plasma concentration versus time curve in the time interval from 0 to 504 hours
Time frame: up to 24 weeks of the double-blind treatment period
AUC(0-∞)
Area under the plasma concentration versus time curve in the time interval from 0 to time infinity
Time frame: up to 24 weeks of the double-blind treatment period
Peak Plasma Concentration (Cmax)
maximum concentration of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Time to maximum concentration (Tmax)
time to maximum concentration of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Elimination rate constant (kel)
kel of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Total clearance (Cl)
Cl of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Steady-state volume of distribution of the drug substance (Vd)
Vd of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Half-life period (T1/2)
T1/2 of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
Concentrations at the end of each infusion (CEOI)
concentrations at the end of each infusion of pembrolizumab
Time frame: up to 24 weeks of the double-blind treatment period
To compare the immunogenicity of BCD-201 and Keytruda.
Development of binding and neutralizing antibodies to pembrolizumab
Time frame: pre-dose to day169 of the double-blind treatment period, 8 timepoints