COVID-19Phase 3NCT04526990
Phase III Trial of A COVID-19 Vaccine of Adenovirus Vector in Adults 18 Years Old and Above
A Phase 3 study testing Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in people with COVID-19, run by CanSino Biologics Inc. at 74 sites in 5 countries.
Trial summary
This study is a global multicenter, randomized, double-blind, placebo -controlled, adaptive designed phase Ⅲ clinical trial, in order to evaluate the efficacy, safety and immunogenicity of Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in adults 18 years old and above. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- COVID-19
- What is being tested?
- Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)
- Type of treatment
- Vaccines, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 44,247 participants
- Where
- 74 sitesin 5 countries
- Study dates
- 15 Sep 2020to 21 Oct 2022
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adults of 18 years old and above.
- Participants who are at high risk of SARS-CoV-2 infection.
- Able and willing (in the Investigator's opinion) to comply with all study requirements.
- Willing to allow the investigators to discuss the volunteer's medical history with their General Practitioner/personal doctor and access all medical records when relevant to study procedures.
- Agreement to refrain from blood donation during the study.
- provide written informed consent.
Who cannot join
- Participation in any other COVID-19 prophylactic drug trials for the duration of the study.
- Participation in SARS-CoV-2 serological surveys where participants are informed of their serostatus for the duration of the study.
- Planned receipt of any vaccine (licensed or investigational), other than the study intervention, within 14 days before and after study vaccination.
- Prior receipt of an investigational or licensed vaccine likely to impact on the interpretation of the trial data.
- Administration of immunoglobulins and/or any blood products within the three months prior to the planned administration of the vaccine candidate.
- Planned receipt of any vaccine (licensed or investigational), other than the study intervention, within 14 days before and after study vaccination
Show all 19Show fewer
- Prior receipt of an investigational or licensed vaccine likely to impact on the interpretation of the trial data (e.g. Adenovirus vectored vaccines, any coronavirus or SARS vaccines)
- Administration of immunoglobulins and/or any blood products within the three months prior to the planned administration of the vaccine candidate
- Any confirmed or suspected immunosuppressive or immunodeficient state; positive HIV status; asplenia; recurrent severe infections and chronic use.
- History of allergic disease or reactions likely to be exacerbated by any component of Ad5-nCoV
- Any history of angioedema
- Any history of anaphylaxis to any vaccine component
- Pregnancy, lactation or willingness/intention to become pregnant during the study
- Current diagnosis of or treatment for cancer (except basal cell carcinoma of the skin and cervical carcinoma in situ)
- History of serious psychiatric condition likely to affect participation in the study
- Suspected or known current alcohol or drug dependency
- Severe and/or uncontrolled cardiovascular disease, respiratory disease, gastrointestinal disease, liver disease, renal disease, endocrine disorder and neurological illness
- History of laboratory-confirmed COVID-19
- Any other significant disease, disorder or finding which may significantly increase the risk to the volunteer because of participation in the study, affect the ability of the volunteer to participate in the study or impair interpretation of the study data.
Trial locations and contacts
74 sites in 5 countries.
74 sites in 5 countries
Russia28 sites
State Budgetary Healthcare Institution of Sverdlovsk Region "Aramil City Hospital"
Aramil, Sverdlovsk Oblast, 624002
Non-state Institution of Healthcare "Road Clinical Hospital at Chelyabinsk station of open corporate society "Russian Railways"
Chelyabinsk, 454000
State Budgetary Educational Institution of Higher Professional Education "Chita State Medical Academy" of the Ministry of Healthcare of the Russian Federation
Chita, 672000
Federal State Budgetary Institution "Main Military Clinical Hospital n.a. N.N. Burdenko" Ministry of Defense of Russian Federation
Moscow, 105229
Moscow State Budgetary Healthcare Institution "City Polyclinic #2 of the Moscow City Healthcare Department"
Moscow, 117556
Health Central Clinical Hospital of Russian Academy of Sciences
Moscow, 117593
Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of Ministry of Healthcare of the Russian Federation (Sechenovsky University)
Moscow, 119435
Private Healthcare Institution "Central Clinical Hospital "RZhD-Medicine"
Moscow
State Regional Budgetary Healthcare Institution "Murmansk Regional Clinical Hospital n.a.P.A. Bayandin"
Murmansk, 183047
State Regional Autonomous Healthcare Institution "Monchegorsk Central District Hospital"
Murmansk
Private Healthcare Institution "Clinical Hospital "RZHD-Meditsina" of Nizhniy Novgorod"
Nizhny Novgorod, 603140
"Life Benefits Service, Ltd'
Novosibirsk, 630091
Budgetary Institution of Heathcare of Omsk region "City Clinical Hospital #1 n.a. Kabanova A.N."
Omsk, 644112
Federal State Budgetary Educational Institution of Higher Education "Perm State Medical University named after E.A. Vagnera" Ministry of Healthcare of Russian Federation
Perm, 614070
Research Center Eco-safety
Saint Petersburg, Sankt-Peterburg, 191119
OOO Meditsinskie Tekhnologii
Saint Petersburg, Sankt-Peterburg, 192148
OOO "Baltijskaya Meditsina"
Saint Petersburg, Sankt-Peterburg, 194356
Research Center Eco-safety
Saint Petersburg, Sankt-Peterburg, 196143
Federal State Budgetary Institution "Scientific Research Institute of Influenza named after A. A. Smorodintsev" of the Ministry of Healthcare of the Russian Federation named after A. A. Smorodintsev" of the Ministry of Healthcare of the Russian Federation
Saint Petersburg, Sankt-Peterburg, 197376
Saint Petersburg State Budgetary Healthcare Institution "City Polyclinic #106"
Saint Petersburg, Sankt-Peterburg, 198328
Saint-Petersburg State Healthcare Institution "Nikolaev Hospital"
Saint Petersburg, Sankt-Peterburg, 198510
OOO "Piterclinica"
Saint Petersburg, Sankt-Peterburg
OOO Zvyezdnaya Klinika
Saint Petersburg, 196158
Limited Liability Company "Hospital "OrKli"
Saint Petersburg, 199178
OOO "Tsentr DNK issledivaniy"
Saratov, 410005
Federal State Budgetary Educational Institution of Higher Education "Saratov State Medical University named after V.I. Razumovsky" the Ministry of Health of the Russian Federation - Clinical hospital n.a. S.R.Mirotvortseva
Saratov, 410054
OOO "Zdorovye"
Tomsk
State Autonomous Healthcare Institution of Yaroslavl region "Clinical Emergency Hospital named after N.V. Solovyev"
Yaroslavl, 150003
Mexico22 sites
Centro de Investigación Clínica del Pacifico S.A. de C.V. (CICPA)
Acapulco de Juárez, Guerrero, 39670
Centro de investigación Médica Aguascalientes (CIMA)
Aguascalientes, Aguascalientes, 999085
Centro de Investigación y Avances Médicos Especializados (CIAME)
Cancún, Quintana Roo, 999085
Centro de Investigacion Integral MEDIVEST SC
Chihuahua City, Chhihuahia, 31203
Centro de Investigacion Clinica Chapultepec SA de CV (Hidra)
Coyoacán, Mexico City, 04100
Instituto Mexicano del Seguro Social (IMSS)
Cuahtemoc, Mexico City
JM Research
Cuernavaca, Morelos, 62290
Instituto de Investigaciones aplicada a las Neurociencias (IIAN)
Durango, 34000
Instituto Jaliscience de Metabolismo, S. C.
Guadalajara, Jalisco, 44670
Kohler & Milstein Research
Mérida, Yucatán, 97070
Instituto de Servicios de Salud del Estado de Baja California
Mexicali, Baja California Norte
Instituto Nacional de Pediatría (INP)
Mexico City, 04530
PEMEX
Mexico City
Asociación de investigación pediátrica y adultos (AINPAD)
Morelia, Mochoacán de Ocampo, 58350
Oaxaca site management organization (OSMO)
Oaxaca City, Oaxaca, 68000
Asociación Mexicana para la investigación clínica (AMIC)
Pachuca, Hidalgo, 42070
Administración de Especialistas de Puebla S.C. (UDEP)
Puebla City, 72160
Clinical Research Institute Saltillo SA de CV
Saltillo, Cuahuila, 25020
Hospital Metropolitano "Dr. Bernardo Sepúlveda"
San Nicolás de los Garza, Nuevo León, 66480
Instuto de Ciencias Médicas y de la Nutrición Salvador Subirán (INCMNSZ)
Tlalpan, Mexico City, 14080
Instituto Nacional de Medicina Genómica
Tlalpan, Mexico City
FAICIC
Veracruz, Veracrua, 91900
Argentina12 sites
Fundación Socolinsky Centro de Vacunación Proteger - Recoleta
CABA, Buenos Aires, C1023AAO
Hospital Pirovano
CABA, Buenos Aires, C1430BKC
Htal de Alta Complejidad Cuenca Alta Néstor Kirchner
Canuelas, Buenos Aires, 1814
Previvax Centro de Vacunación
Córdoba, 5000
Hospital Interzonal de Agudos "San Juan de Dios" de La Plata
La Plata, Buenos Aires, 1900
Hospital Rossi
La Plata, Buenos Aires, 1900
Inst. Médico Platense
La Plata, Buenos Aires, 1900
Instituto de Investigaciones Clínicas
Mar del Plata, Buenos Aires, 7600
Htal Mariano y Luciano de la Vega
Moreno, Buenos Aires, 1744
Hospital Houssay
Vicente López, Buenos Aires, 999071
Hospital Zonal General de Agudos "Cetrangolo"
Vicente López, Buenos Aires, 999071
Instituto Cer
Vicente López, Quilmes, 1878
Chile7 sites
Clínica Andes Salud Concepción
Concepción, Maule Region, 4030000
Hospital Base de Osorno
Osorno, Los Ríos Region, 5290000
Hospital de Puerto Montt Dr. Eduardo Schütz Schoroeder Puerto Montt
Port Montt, X Región de Los Lagos, 5480000
CIMER Centro de Investigaciones Medicas Respiratorias Santiago
Providencia, Santiago Metropolitan, 7500000
Hospital San Borja Arriarán Santiago
Santiago, Santiago Metropolitan, 8320000
Hospital Dr. Hernan Henriquez Aravena Temuco
Temuco, Araucania, 4780000
Clinica Alemana de Valdivia Valdivia
Valdivia, Los Ríos Region, 5090000
Pakistan5 sites
Shifa International Hospital
Islamabad, Islamabad, 30001
Aga Khan University Hospital
Karachi, Sindh, 999010
The Indus Hospital
Karachi, Sindh, 999010
Shaukat Khanum Memorial Cancer Hospital and Research Centre
Lahore, Punajb, 54000
University of Health Scinces, Lahore
Lahore, Punjab Province, 999010
About this study
Official title: A Global Multicenter, Randomized, Double-blind, Placebo -Controlled, Adaptive Designed Phase Ⅲ Clinical Trial to Evaluate the Efficacy, Safety and Immunogenicity of Ad5-nCoV in Adults 18 Years of Age and Older
This study is a global multicenter, randomized, double-blind, placebo -controlled, adaptive designed phase Ⅲ clinical trial, in order to evaluate the efficacy, safety and immunogenicity of Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in adults 18 years old and above.
Read the detailed description
This is a global phase III clinical trial to evaluate efficacy,safety, immuogenicity of Ad5-nCoV manufactured by Cansino and Beijing Institute of Biotechnology in health adults aged 18 years old and above.
The study will be double-blind, placebo-controlled trial with participants randomly allocated 1:1 to placebo and experimental vaccine cohorts.
The immunization schedule is one doses intramuscular injections (deltoid).
- Conditions
- COVID-19
- Being tested
- Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector), Placebo
- Keywords
- COVID-19, vaccine, Ad5, Safety, Immunogencity, efficacy, adaptive design, SARS-CoV-2, Adenovirus Vector
- Medical subject headings
- COVID-19, Alzheimer Disease 5
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)Biological
Intramuscular administration
PlaceboBiological
Intramuscular administration
| Study group | Role | What they receive |
|---|---|---|
| Experimental group | Experimental | 20000 participants, Ad5-nCoV , single dose, Intramuscular administration Receives: Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) |
| Placebo group | Placebo comparator | 20000 participants, placebo, single dose, Intramuscular administration Receives: Biological: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of COVID-19 cases
The efficacy of Ad5-nCoV in preventing virologically confirmed (PCR positive) COVID-19 disease
Measured: day 28 to 12 months post vaccination
Incidence of SAE
Evaluate the incidence of severe adverse events (SAE)
Measured: Within 12 months
Secondary outcomes (6)
Incidence of severe COVID-19 cases
Evaluate the efficacy of Ad5-nCoV in preventing severe COVID-19 disease caused by SARS-CoV-2 infection
Measured: Day 14 to 12 months post vaccination
Incidence of solicited adverse reactions
Incidence of solicited adverse reactions within 7 days after vaccination, in a subset
Measured: Day 0-7 post vaccination
Incidence of unsolicited adverse events
Incidence of unsolicited adverse events within 28 days after vaccination in a subset
Measured: Day 0-28 post vaccination
Immunogencity of S-RBD IgG antibody (ELISA method)
The seroconversion rate of S-RBD IgG antibody post vaccination
Measured: Day 28 post vaccination
Immunogencity of neutralizing antibody
The seroconversion rate of neutralizing antibody
Measured: Day 28 post vaccination
Cell-mediated immune profile
Number of cell-mediated immune response against SARS-CoV-2
Measured: Day 28 post vaccination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Aug 2020
- Study start15 Sep 2020
- Primary completion7 Aug 2021
- Study completion21 Oct 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for COVID-19Studies of the same condition, open and under way.
- More trials run by CanSino Biologics Inc.The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 44,247 participants (actual)
Sponsor and investigators
- Lead sponsor
- CanSino Biologics Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Beijing Institute of Biotechnology
- Responsible party
- Sponsor
- Investigators
- Scott A Halperin, MD, Principal investigator, Canadian Center for VaccinologyFengcai Zhu, Principal investigator, Jiangsu Province Centers for Disease Control and PreventionJoanne M angley, MD, Principal investigator, Canadian Center for Vaccinology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04526990
- Sponsor's protocol ID
- CS-CTP-AD5NCOV-Ⅲ
- Status last verified
- Sep 2022
- First submitted
- 22 Aug 2020
- Last updated
- 15 Jun 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rooyakkers A, Ye L, Cahn PE, Ruiz-Palacios GM, Ikram A, Lanas F, Navarro SRM, Sued O, Lioznov DA, Dzutseva V, Parveen G, Zubkova T, Li J, Langley JM, Wang R, Barreto L, Gou J, Zhu T, Whittle CA, Halperin SA; CanSino COVID-19 Global Efficacy Study Group. Relative efficacy, safety, and immunogenicity analysis of two doses versus one dose of recombinant coronavirus vaccine (adenovirus type 5 vector) in adults 18 years and older: an international, multicentre, randomized, double blinded phase 3 trial. Vaccine. 2026 Apr 19;79:128424. doi: 10.1016/j.vaccine.2026.128424. Epub 2026 Mar 19.
PubMed 41863180Ruiz-Palacios GM, Cahn PE, Halperin SA, Wang R, Wang L, Perez C, Figueroa MI, Yan M, Li R, Ye L, Huang H, Barreto L, Gou J, Zhu T. Adenovirus type 5 vector-based COVID-19 vaccine does not increase the likelihood of HIV infection. Vaccine. 2026 Apr 11;78:128378. doi: 10.1016/j.vaccine.2026.128378. Epub 2026 Mar 4.
PubMed 41785679Halperin SA, Ye L, MacKinnon-Cameron D, Smith B, Cahn PE, Ruiz-Palacios GM, Ikram A, Lanas F, Lourdes Guerrero M, Munoz Navarro SR, Sued O, Lioznov DA, Dzutseva V, Parveen G, Zhu F, Leppan L, Langley JM, Barreto L, Gou J, Zhu T; CanSino COVID-19 Global Efficacy Study Group. Final efficacy analysis, interim safety analysis, and immunogenicity of a single dose of recombinant novel coronavirus vaccine (adenovirus type 5 vector) in adults 18 years and older: an international, multicentre, randomised, double-blinded, placebo-controlled phase 3 trial. Lancet. 2022 Jan 15;399(10321):237-248. doi: 10.1016/S0140-6736(21)02753-7. Epub 2021 Dec 23.
PubMed 34953526
Study at a glance
From the registry record, last updated by the sponsor on 15 Jun 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Global Multicenter, Randomized, Double-blind, Placebo -Controlled, Adaptive Designed Phase Ⅲ Clinical Trial to Evaluate the Efficacy, Safety and Immunogenicity of Ad5-nCoV in Adults 18 Years of Age and Older
- ClinicalTrials.gov ID
- NCT04526990
- Acronym / sponsor ID
- CS-CTP-AD5NCOV-Ⅲ
- Conditions
- COVID-19
- Keywords
- COVID-19, vaccine, Ad5, Safety, Immunogencity, efficacy, adaptive design, SARS-CoV-2
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 44,247 participants (actual)
- Lead sponsor
- CanSino Biologics Inc.Industry (pharma, biotech, devices)
- Collaborators
- Beijing Institute of Biotechnology
- Study start
- 15 Sep 2020 (actual)
- Primary completion
- 7 Aug 2021 (actual)
- Study completion
- 21 Oct 2022 (actual)
- First posted
- 26 Aug 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is a global multicenter, randomized, double-blind, placebo -controlled, adaptive designed phase Ⅲ clinical trial, in order to evaluate the efficacy, safety and immunogenicity of Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in adults 18 years old and above.
Detailed description
This is a global phase III clinical trial to evaluate efficacy,safety, immuogenicity of Ad5-nCoV manufactured by Cansino and Beijing Institute of Biotechnology in health adults aged 18 years old and above.
The study will be double-blind, placebo-controlled trial with participants randomly allocated 1:1 to placebo and experimental vaccine cohorts.
The immunization schedule is one doses intramuscular injections (deltoid).
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Experimental group | Experimental | Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)20000 participants, Ad5-nCoV , single dose, Intramuscular administration |
| Placebo group | Placebo comparator | Biological: Placebo20000 participants, placebo, single dose, Intramuscular administration |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Adults of 18 years old and above.
- Participants who are at high risk of SARS-CoV-2 infection.
- Able and willing (in the Investigator's opinion) to comply with all study requirements.
- Willing to allow the investigators to discuss the volunteer's medical history with their General Practitioner/personal doctor and access all medical records when relevant to study procedures.
- Agreement to refrain from blood donation during the study.
Key exclusion criteria (19 listed)
- Participation in any other COVID-19 prophylactic drug trials for the duration of the study.
- Participation in SARS-CoV-2 serological surveys where participants are informed of their serostatus for the duration of the study.
- Planned receipt of any vaccine (licensed or investigational), other than the study intervention, within 14 days before and after study vaccination.
- Prior receipt of an investigational or licensed vaccine likely to impact on the interpretation of the trial data.
- Administration of immunoglobulins and/or any blood products within the three months prior to the planned administration of the vaccine candidate.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)Intramuscular administration | Biological | Experimental group |
| PlaceboIntramuscular administration | Biological | Placebo group |
Primary outcome
Incidence of COVID-19 cases
Time frame: day 28 to 12 months post vaccination
The efficacy of Ad5-nCoV in preventing virologically confirmed (PCR positive) COVID-19 disease
Incidence of SAE
Time frame: Within 12 months
Evaluate the incidence of severe adverse events (SAE)
6 secondary outcomes
Incidence of severe COVID-19 cases
Time frame: Day 14 to 12 months post vaccination
Incidence of solicited adverse reactions
Time frame: Day 0-7 post vaccination
Incidence of unsolicited adverse events
Time frame: Day 0-28 post vaccination
Immunogencity of S-RBD IgG antibody (ELISA method)
Time frame: Day 28 post vaccination
Immunogencity of neutralizing antibody
Time frame: Day 28 post vaccination
Cell-mediated immune profile
Time frame: Day 28 post vaccination
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Jun 2023.
- Derived from this study: PubMed 41863180Rooyakkers A, Ye L, Cahn PE, Ruiz-Palacios GM, Ikram A, Lanas F, Navarro SRM, Sued O, Lioznov DA, Dzutseva V, Parveen G, Zubkova T, Li J, Langley JM, Wang R, Barreto L, Gou J, Zhu T, Whittle CA, Halperin SA; CanSino COVID-19 Global Efficacy Study Group. Relative efficacy, safety, and immunogenicity analysis of two doses versus one dose of recombinant coronavirus vaccine (adenovirus type 5 vector) in adults 18 years and older: an international, multicentre, randomized, double blinded phase 3 trial. Vaccine. 2026 Apr 19;79:128424. doi: 10.1016/j.vaccine.2026.128424. Epub 2026 Mar 19.
- Derived from this study: PubMed 41785679Ruiz-Palacios GM, Cahn PE, Halperin SA, Wang R, Wang L, Perez C, Figueroa MI, Yan M, Li R, Ye L, Huang H, Barreto L, Gou J, Zhu T. Adenovirus type 5 vector-based COVID-19 vaccine does not increase the likelihood of HIV infection. Vaccine. 2026 Apr 11;78:128378. doi: 10.1016/j.vaccine.2026.128378. Epub 2026 Mar 4.
- Derived from this study: PubMed 34953526Halperin SA, Ye L, MacKinnon-Cameron D, Smith B, Cahn PE, Ruiz-Palacios GM, Ikram A, Lanas F, Lourdes Guerrero M, Munoz Navarro SR, Sued O, Lioznov DA, Dzutseva V, Parveen G, Zhu F, Leppan L, Langley JM, Barreto L, Gou J, Zhu T; CanSino COVID-19 Global Efficacy Study Group. Final efficacy analysis, interim safety analysis, and immunogenicity of a single dose of recombinant novel coronavirus vaccine (adenovirus type 5 vector) in adults 18 years and older: an international, multicentre, randomised, double-blinded, placebo-controlled phase 3 trial. Lancet. 2022 Jan 15;399(10321):237-248. doi: 10.1016/S0140-6736(21)02753-7. Epub 2021 Dec 23.
- Individual participant dataSharing planned: No
Related trials for COVID-19
Not yet recruitingPhase 1
Phase I Open-Label Safety Trial of Pembrolizumab for Neurological Post- Acute Sequelae of SARS-CoV-2 (PD1-PASC I)
Post-Acute COVID-19 Syndrome
Active, not recruitingPhase 1
A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults
COVID-19
Active, not recruiting
Intervention to Address Disparate Mental Health Consequences of COVID-19 Pandemic on Latinx and African Newcomers
Mental Health Issue, Mental Health Disorder
Recruiting
Home-Based Exercise Tele-Rehabilitation After COVID-19
Post SARS-CoV2 (COVID-19)
Not yet recruitingPhase 1
A Safety, Reactogenicity and Immunogenicity Trial of RVX-sCPD9 Booster Intranasal COVID-19 Vaccine
COVID -19
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Scott A Halperin, MD principal investigator
Canadian Center for Vaccinology
Fengcai Zhu principal investigator
Jiangsu Province Centers for Disease Control and Prevention
Joanne M angley, MD principal investigator
Canadian Center for Vaccinology
74 sites in 5 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) in people with COVID-19, run by CanSino Biologics Inc. at 74 sites in 5 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 15 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 74 sites in Russia, Mexico, Argentina, Chile, Pakistan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of COVID-19 cases (time frame: day 28 to 12 months post vaccination). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04526990, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Jun 2023.