Study to Evaluate Efficacy, Immunogenicity and Safety of the Sputnik-Light (SPUTNIK-LIGHT)
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ClinicalTrials.gov Identifier: NCT04741061 |
Recruitment Status : Unknown
Verified February 2021 by Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation.
Recruitment status was: Recruiting
First Posted : February 5, 2021
Last Update Posted : February 21, 2021
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Condition or disease | Intervention/treatment | Phase |
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COVID-19 Prevention | Biological: Sputnik Light Other: Placebo | Phase 3 |
This study is randomized, double-blind (blinded for the study subject and investigators), placebo-controlled international multicenter study in the parallel assignment of the subjects to assess efficacy, immunogenicity and safety of the Sputnik-Light vector vaccine in adults in the SARS-СoV-2 infection prophylactic treatment
The subjects will be randomized into two groups in the ratio of 1:3; a control group (1500 subjects receiving placebo) and a study group (4500 subjects receiving the Sputnik-Light vector vaccine against the SARS-СoV-2-induced COVID19 infection).
For the evaluation of immunogenicity an unbalanced design is adopted of the placebo and vaccinated group at a 1:3 ratio. Subsequently the number of subjects in Subgroup A tested will be 1076 subjects, distributed as follows: 269 in the placebo group and 807 in the vaccinated group, also randomized into two groups in the ratio of 1:3 who will attend for assessment of immunogenicity compared to baseline.
Each subjects will participate in the trial for approximately 6 months after the first dose of the study vaccine/placebo and will have at least tree on-site visits, including a screening visit to the study clinical site during the study period and several observation Phone Call/ Tele-consultation visits during the study
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 6000 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | randomized, double-blind (blinded for the study subject and investigators), placebo-controlled |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Prevention |
Official Title: | A Phase III, Randomized, Double-blind, Placebo-controlled International Multicenter Study to Evaluate Efficacy, Immunogenicity and Safety of the Sputnik-Light Vector Vaccine in the Parallel Assignment of the Subjects in Prophylactic Treatment for SARS-СoV-2 Infection |
Actual Study Start Date : | February 19, 2021 |
Estimated Primary Completion Date : | December 31, 2021 |
Estimated Study Completion Date : | January 31, 2022 |

Arm | Intervention/treatment |
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Active Comparator: Sputnik Light Vaccine
study group (4500 receiving the Sputnik-Light vector vaccine) against the SARS-СoV-2-induced coronavirus infection.
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Biological: Sputnik Light
Sputnik-Light vector vaccine: Active substance: recombinant adenovirus serotype 26 particles containing the SARS-CoV-2 protein S gene, in the amount of (1.0±0.5) х 1011 particles per dose. |
Placebo Comparator: Placebo Group
control group (1500 subjects receiving placebo)
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Other: Placebo
Placebo |
- Incidence and severity of adverse events in study subjects [ Time Frame: through the whole study, an average of 180 days ]Incidence and severity of AEs and SAEs during the subject's participation in the study
- Percentage of study subjects with COVID-19 cases developed after vaccination [ Time Frame: through the whole study, an average of 180 days ]Percentage of study subjects with COVID-19 cases developed after vaccination with the Sputnik-Light vector vaccine as compared with placebo
- Humoral immunogenicity (Quantitative IgG antibodies to SARS-CoV-2 S Protein) [ Time Frame: at days 0, 42, 180 ]Geometric mean titer (GMT) levels of Quantitative IgG antibodies
- Humoral immunogenicity (IgG SARS-CoV-2 N-antibodies) [ Time Frame: at days 0, 42, 180 ]Percentage of study subjects who have a post-treatment response as measures with Qualitative IgG SARS-CoV-2 N-antibodies

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 111 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Agree to sign the study informed consent form (ICF) before performing any study specific procedure
- Adults ≥ 18 years old
- Negative COVID-19 PCR test result at the screening visit and negative immunochromatographic SARS-CoV-2 antigen rapid-test result at the enrolment
- Consent for using effective methods of contraception during the study
- No evidence of vaccine-induced reactions or complications after receiving immunobiological products in medical history
- No acute infectious and/or respiratory diseases within at least 14 days before the enrolment
Exclusion Criteria:
- Any previous vaccination/immunization (within 30 days before the enrollment) and any planned vaccination within 30 days after enrollment
- Any previous or planning COVID-19 vaccination with any other Regulatory approved vaccine
- Positive SARS-CoV-2 screening result obtained by PCR (at screening)
- Administration of steroids (except hormonal contraceptives) and/or immunoglobulins or other blood products therapy not finished 30 days before the enrollment
- Pregnancy or lactation
- Acute coronary syndrome or stroke suffered less than one year before study enrollment
- Tuberculosis, chronic systemic infections associated with Immunocompromised subjects in medical history
- History of severe allergic reaction to drug or vaccine (anaphylactic shock, Quincke's edema, and other life-threatening allergic reactions), acute exacerbation of allergic diseases on screening and vaccination day
- Chronic autoimmune disease and system collagenases in medical history
- Organ transplantation and immunosuppressive therapy
- Immunosuppressive therapy and corticosteroid system therapy within 3 months before the enrollment
- Subjects with malignant neoplasms within 5 years before the enrollment
- Splenectomy in the past medical history
- Neutropenia (absolute neutrophil count <1,000 mm3 agranulocytosis, significant blood loss, severe anemia (hemoglobin <80 g/L), immunodeficient disease in the medical history within 6 months before the enrollment
- The active form of a disease caused by the human immunodeficiency virus, syphilis, hepatitis B, or C
- Acute Kidney injury or dialysis
- Anorexia or dysnutrition
- Tattoos at the injection site (deltoid muscle area), which in the medical opinion of the investigator does not allow assessing the local response to the vaccine/placebo
- Alcohol or Drug abuse in medical history
- Participation in other interventional clinical trial within the previous 90 days prior to vaccination and over duration of the trial
- Any other condition that the investigator considers as a barrier to the trial completion as per the protocol

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04741061
Contact: Elena Merkulova | +7 (495) 276 11 43 ext 495 | eam@ipharma.ru |
Russian Federation | |
Federal State Autonomous Educational Institution for Higher Education "Immanuel Kant Baltic Federal University" | Not yet recruiting |
Kaliningrad, Russian Federation | |
Contact: Vladimir Rafalskiy | |
Principal Investigator: Vladimir Rafalskiy | |
State Budgetary Healthcare Institution, Moscow, Consultation and Diagnosis Polyclinic No. 121, Moscow Healthcare Department | Recruiting |
Moscow, Russian Federation | |
Contact: Elena Klimova, MD | |
State Budgetary Healthcare Institution, Moscow, Municipal Polyclinic No. 210, Moscow Healthcare Department | Recruiting |
Moscow, Russian Federation | |
Contact: Anna Gratzianskaya | |
State Budgetary Healthcare Institution, Moscow, Municipal Polyclinic No. 219, Moscow Healthcare Department | Recruiting |
Moscow, Russian Federation | |
Contact: Natalia Nenasheva, MD | |
State budgetary institution of health care of the city of Moscow "diagnostic centre № 5 associated with policlinic department of Moscow Healthcare Department" | Not yet recruiting |
Moscow, Russian Federation | |
Contact: Tamara Vilegzhanina | |
Principal Investigator: Tamara Vilegzhanina | |
State budgetary institution of health care of the city of Moscow "diagnostic clinical centre № 1 Moscow Healthcare Department " | Recruiting |
Moscow, Russian Federation | |
Contact: Natalia Shartanova | |
Principal Investigator: Natalia Shartanova | |
State budgetary institution of health care of the city of Moscow "Municipal Polyclinic № 2 Moscow Healthcare Department" | Recruiting |
Moscow, Russian Federation | |
Contact: Sergey Fitilev, MD | |
Principal Investigator: Sergey Fitilev | |
State budgetary institution of health care of the city of Moscow "Municipal Polyclinic № 36 Moscow Healthcare Department" | Recruiting |
Moscow, Russian Federation | |
Contact: Irina Isakova | |
Principal Investigator: Irina Isakova | |
State budgetary institution of health care of the city of Moscow "Municipal Polyclinic № 6 Moscow Healthcare Department" | Not yet recruiting |
Moscow, Russian Federation | |
Contact: Marina Ivzhits | |
Principal Investigator: Marina Ivzhits | |
State budgetary institution of health care of the city of Moscow "Municipal Polyclinic № 62 Moscow Healthcare Department" | Recruiting |
Moscow, Russian Federation | |
Contact: Marina Rusanova, MD, PhD | |
Principal Investigator: Marina Rusanova | |
State budgetary institution of health care of the city of Moscow "Municipal Polyclinic № 64 Moscow Healthcare Department" | Recruiting |
Moscow, Russian Federation | |
Contact: Svetlana Rachina | |
Principal Investigator: Svetlana Rachina | |
St. Petersburg's state budgetary health care Institution "Municipal hospital № 40 of Kurortniy area" | Not yet recruiting |
Saint Petersburg, Russian Federation | |
Contact: Alina Agafina, MD | |
Principal Investigator: Alina Agafina | |
St. Petersburg's state budgetary health care Institution "Municipal hospital №117" | Not yet recruiting |
Saint Petersburg, Russian Federation | |
Contact: Diana Alpenidze | |
Principal Investigator: Diana Alpenidze | |
Federal state budgetary educational Institution for Higher Education "Saratov State Medical University named after V.I. Razumovskiy" Ministry of Health of Russian Federation | Not yet recruiting |
Saratov, Russian Federation | |
Contact: Yury Shvarts | |
Principal Investigator: Yury Shvarts | |
LLC "Uromed" | Not yet recruiting |
Smolensk, Russian Federation | |
Contact: Alla Andreeva | |
Principal Investigator: Alla Andreeva |
Responsible Party: | Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation |
ClinicalTrials.gov Identifier: | NCT04741061 |
Other Study ID Numbers: |
01 - Sputnik Light - 2021 |
First Posted: | February 5, 2021 Key Record Dates |
Last Update Posted: | February 21, 2021 |
Last Verified: | February 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
COVID-19 vaccine vector vaccine adenovirus vector SARS-CoV-2 |
COVID-19 Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |