Vaccine Info

Convidecia Vaccine CanSino

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September 5, 2022

CanSinoBio Convidecia™ Vaccine (Ad5-nCoV) For 2022

CanSinoBio Biologics Inc. Convidecia™ (Ad5-nCoV) is a novel recombinant viral vector vaccine for COVID-19 produced in China. The single-dose vaccine was developed on CanSinoBIO's adenovirus-based viral vector vaccine technology platform and the Beijing Institute of Biotechnology.

Convidecia is a genetically engineered vaccine with the replication-defective adenovirus type 5 vector to express the SARS-CoV-2 coronavirus spike protein. In addition, the Company used protein structure design technology to design pneumococcal protein antigens. And developed a proprietary cell line to be used for viral vector production. It uses a weakened common cold virus (adenovirus, which infects human cells readily but is incapable of causing disease) to deliver genetic material that codes for the SARS-CoV-2 spike protein to the cells. These cells then produce the spike protein and travel to the lymph nodes, where the immune system creates antibodies that will recognize that spike protein and fight off the coronavirus.

In early 2020, a joint team of the Institute of Biotechnology, the Academy of Military Medical Sciences, and CanSino Biologics began developing the AD5-nCOV vaccine candidate. According to China Daily, the team registered the experimental COVID-19 vaccine for a phase I clinical trial in China on March 23, 2020.

On April 15, 2020, China began the second phase of clinical trials for a COVID-19 vaccine with 500 volunteer participants recruited from Wuhan. It was the first Phase 2 human test for a COVID-19 vaccine, reported Xinhua News. On May 16, 2020, Health Canada approved human clinical trials for a possible coronavirus vaccine. On May 22, 2020, the Ad5 vectored COVID-19 vaccine was reported in a study to be tolerable and immunogenic at 28 days post-vaccination. Humoral responses against SARS-CoV-2 peaked at day 28 post-vaccination in healthy adults, and rapid, specific T-cell responses were noted from day 14 post-vaccination. Our findings suggest that the Ad5 vector COVID-19 vaccine warrants further investigation.

According to the National Intellectual Property Administration, on August 11, 2020, China granted its first COVID-19 vaccine patent. The patent was submitted for application on March 18, 2020.

The Lancet published an analysis of a phase 3 study on Dec. 23, 2021, that showed a single dose of Convidecia is efficacious and safe, with an efficacy of 96% in preventing severe COVID-19 disease and the overall efficacy of 63.7% 14 days post-vaccination for healthy adults aged 18 and above, without any reported vaccine-related serious adverse events. Against severe infection with the virus, the vaccine's effectiveness increased to 91.7% effective.

The Company announced on Jan. 11, 2022, a phase 1/2 study published on January 4, 2022, showed that boosting the inactivated vaccine with the Inhalation Convidecia™stimulates a strong mucosal immune response. The level of RBD-specific IgA-binding antibody was detected in the serum of the subjects 14 days after vaccination.Convidecia Vaccine (Ad5-nCoV) Indication.

CanSinoBio announced on March 13, 2022, a non-peer-reviewed phase 4 study's results showed that administering Convidecia as a heterologous booster can induce a stronger immune response than the recombinant protein and inactivated vaccines, stimulating greater humoral and cellular immune responses regardless of the delivery route. Additionally, the inhaled version of Convidecia provides a more effective and efficient alternative for the booster vaccination program, as it can also induce mucosal immunity to achieve triple protection with just one-fifth dosage of an injectable version of Convidecia.

On May 19, 2022, the World Health Organization (WHO) issued an emergency use listing (EUL) for Convidecia and published Interim recommendations for use of the Cansino Ad5-nCoV-S vaccine (Convidecia ®) against COVID-19. On June 10, 2022, the WHO published: The CanSino Biologics Ad5-nCoV-S [recombinant] COVID-19 vaccine: What you need to know.

On September 4, 2022, the company announced the National Medical Products Administration of China (“NMPA”) had granted approval for its Recombinant COVID-19 Vaccine for Inhalation (trade name: Convidecia Air™) to be used as a booster dose. 

Convidecia (Ad5-nCoV) Drugbank Accession Number: DB15655. Ad5-nCoV clinical trial listing. It is similar to other viral vector vaccines produced by AstraZeneca (AZD1222), Sputnick V (Gam-COVID-Vac), and Ad26.COV2.S. 

Tianjin, China-based CanSino Biologics Inc. is an innovative biopharmaceutical company (SHSE: 688185, HKEX: 06185) established in 2009 and dedicated to exploring the best solutions to preventing diseases through cutting-edge research & development, advanced manufacturing, and commercialization of innovative vaccine products for human use worldwide. Inclusive of the COVID-19 vaccine, they are developing several vaccines, including 13 for infectious diseases. CanSinoBio announced its new brand identity on April 24, 2022, which is intended to represent the Company's continuous dedication to life sciences research and its commitment to protecting the global population with innovative, high-quality, and accessible vaccines and empowering people to lead a healthy and better life.

Headquarter: 401-420, 4th Floor, Biomedical Park, 185 South Avenue, TEDA West District, Tianjin, PRC.

Convidecia Air™ Inhaled Vaccine

Reuters reported CanSino Biologics Inc.'s inhaled version of its adenovirus-vectored Covid-19 vaccine, Convidecia Air™, was approved by China's medical products regulator as a booster dose on September 4, 2022. Convidecia Air provides a non-invasive option that uses a nebulizer to change liquid into an aerosol for inhalation through the mouth. Convidecia Air is needle-free and can effectively induce comprehensive immune protection in response to SARS-CoV-2 after just one breath. This route mimics the natural infection pathway of the respiratory virus COVID-19 and may create additional benefits by generating mucosal immunity.

On July 29, 2022, the media reported CanSino's inhaled booster vaccine offered stronger protection against Omicron BA.1 subvariant. On December 23, 2021, the Company confirmed 'that studies showed that a combination of an intramuscular and inhaled regimen of Convidecia™ provides stronger protection than a single intramuscular dose. The neutralizing antibody level 28 days after the mixed regimen was four times higher than that of a single intramuscular injection, which could remain at a high level after 6 months. It can be inhaled through the respiratory tract and lungs, thereby stimulating mucosal, humoral, and cellular immunity with an added layer of protection.' 

On December 9, 2021, Aerogen® (Galway, Ireland) and CanSinoBIO announced a development and commercial supply partnership for the inhaled delivery of CanSinoBIO's Convidecia Air utilizing Aerogen's proprietary vibrating mesh aerosol drug delivery technology.

CanSinoBio mRNA Vaccine

CanSinoBio announced on April 4, 2022, pre-clinical trial results showed that CanSinoBIO's COVID-19 mRNA vaccine-induced high-titer neutralizing antibody levels against multiple SARS-CoV-2 variants of concern (VoC), including the Omicron variant. Additionally, results showed that the CanSinoBio mRNA vaccine could induce neutralizing antibodies with greater cross-reactivity against global VOCs and provide stronger protection against infections caused by the circulating variants than the original strain-based COVID-19 vaccines.

CanSino Convidecia Dosage

The WHO's SAGE recommends the use of the vaccine as a single (0.5ml) dose in all age groups 18 and above. The phase 3 clinical study did a dose-escalation, single-center, open-label, non-randomized, phase 1 trial Ad5 vectored COVID-19 vaccine in Wuhan, China. Healthy adults aged between 18 and 60 years were sequentially enrolled and allocated to one of three dose groups (5 × 1010, 1 × 1011, and 1·5 × 1011 viral particles) to receive a single intramuscular injection of vaccine.

CanSino Convidecia Storage

Convidecia can be stored and transported between 2°C and 8°C, making it more accessible, especially to underserved public health regions.

CanSino Convidecia Availability

As of July 2022, Convidecia was available in about ten countries, including Malaysia and Indonesia, as a heterologous booster in China and Argentina. It is also the first adenovirus-vectored vaccine to be included in the heterologous vaccination program in China.

CanSino Convidecia Price

TV media reported that the Pakistan-based Dr. Zeeshan Bin Ishtiaque confirmed that they had started inoculations with Convidecia, whose maximum retail price was Rs4,250 (the US $58).

CanSino Convidecia News 2020 - 2022

August 23, 2022 - The BMJ published a Feature: What do we know about covid-19 vaccines in under 5s?

July 28, 2022 - A non-peer-reviewed study - Antibody Persistence and Safety through 6 Months after Heterologous Orally Aerosolised Ad5-nCoV in individuals primed with two-dose CoronaVac previously. Conclusions: These data suggested that heterologous aerosolized Ad5-nCoV following two-dose CoronaVac priming was safe and persistently more immunogenic than three-dose CoronaVac, although immune responses waned over time.

July 18, 2022 - News article: CanSinoBIO developed a highly effective COVID vaccine with an inhalant version.

June 29, 2022 - Malaysia announced the CanSino vaccine would be used as a booster for adults regardless of the type of COVID-19 vaccine they received for their first or second dose.

May 19, 2022 - The WHO added the CanSino Biologics vaccine to its growing portfolio of vaccines validated for the prevention of COVID-19 caused by the SARS-CoV-2 coronavirus.

May 3, 2022 - Argentine Health Minister Carla Vizzotti on Tuesday acknowledged the Convidecia vaccine's contribution to combating COVID-19.

April 11, 2022 - The WHO's Strategic Advisory Group of Experts on Immunization evaluated the CanSino Bio (Ad5-nCOV-S) vaccine data. The outcomes of this discussion will be made available subject to WHO EUL being granted.

March 22, 2022 - CanSino Biologics Inc. announced that its Convidecia vaccine had been approved by the Ministry of Health Malaysia and the Indonesian National Agency of Drug and Food Control as a heterologous booster. Previously, Convidecia had been approved for use as a heterologous booster in China and Argentina in national vaccination programs in February 2022 and November 2021, respectively. It is also the first and only adenovirus-vectored vaccine to be included in the heterologous vaccination program in China.

March 13, 2022 - CanSino Biologics Inc. announced results from an academic paper on the efficacy of a Convidecia single dose heterologous booster against the Omicron virus variant generated greater neutralizing antibody responses than those induced by the homologous inactivated vaccine booster or heterologous recombinant protein vaccine booster.

March 10, 2022 - A non-peer-reviewed study concluded: Our findings suggest that inactivated vaccine recipients should consider adenovirus-vectored vaccine boosters and that aerosolized Ad5-nCoV may provide a more efficient alternative in response to the spread of the Omicron variant.

March 5, 2022 - CanSino Biologics external R&D Vice President Xin Chunlin said both the injectable CanSino vaccine and its inhaled form, which is undergoing trials, would allow a more efficient vaccination for the public. He said the inhaled form of the vaccine is more flexible, using one-fifth of the formulation of the injectable version, and can stay stable for almost a month under room temperature.

February 19, 2022 - CanSino Biologics Inc. announced the Joint Prevention and Control Mechanism of the State Council of China has approved its vaccine as a heterologous booster, making it the first adenovirus-vectored vaccine to be included in the heterologous vaccination program in China.

February 18, 2022 - Solution Group Bhd announced approval to commence local formulation, filling, and finishing of CanSino's single-dose vaccine Convidecia in Malaysia.

February 8, 2022 - A non-peer-reviewed study compared major outcomes in 260 hospitalized vaccinated vs 507 unvaccinated adults with COVID-19 (mid-2021). The vaccinated group was much older, required less critical care, had lower hospital mortality (adjusted by age), and had shorter hospitalization than the unvaccinated. Benefits were most pronounced in those older than 59 years.

January 27, 2022 - Shine reported the first batch of the locally produced vaccines rolled off the automated production line in the Baoshan District, a suburb of the port city of Shanghai. The factory, jointly developed by Shanghai Pharmaceuticals and STAR-listed CanSino Bio, can produce 200 million shots of the COVID-19 vaccines annually.

January 11, 2022 - CanSino Biologics Inc. announced that Preprints with The Lancet published a clinical study on the safety and immunogenicity of CanSinoBIO's Recombinant COVID-19 Vaccine(Adenovirus Type 5 Vector)for Inhalation Convidecia™as a heterologous booster. The results of a phase 1/2 study indicated that a heterologous booster with one dose of the Inhalation Convidecia™ for adults aged 18 years and above, who have received two doses of inactivated COVID-19 vaccine, can induce a higher level of neutralizing antibodies than those with a homogeneous booster of inactivated vaccine.

December 24, 2021 - CanSino Biologics Inc. announced that the journal The Lancet published its Phase III clinical trial results on the safety and efficacy of its Convidecia™ vaccine. The publication of the analysis showed that a single dose of Convidecia is efficacious and safe with an efficacy of 96% in preventing severe COVID-19 disease and displayed an overall efficacy of 63.7% 14 days post-vaccination for healthy adults aged 18 and above, without any reported vaccine-related serious adverse events.

November 11, 2021 - Brazil's Anvisa received a request filed by Biomm to use the Convidecia vaccine in Brazil.

November 1, 2021 - Australia recognizes two more COVID-19 vaccines not registered in Australia but used widely internationally.

October 7, 2021 - TASS reported Petrovax plans to produce the Chinese vaccine Convidecia in 2022.

September 21, 2021 - Malaysia media reported SGB's statement indicated data from a recent Chinese clinical study showed that a booster shot with the Convidecia vaccine, following a two-dose inactivated vaccine, is effective to produce an immune response to the Covid-19 virus. "The study by the Jiangsu Centre of Disease Control revealed that the Convidecia booster shot demonstrated an increase of at least 78-fold in average neutralizing antibody levels, in comparison with a booster shot with the same inactivated vaccine showing a 15.2-fold increase in antibody levels," it said.

September 9, 2021 - Local media reported Solution Biologics had secured a contract from the Malaysian government to supply some 3.5 million doses of the single-dose COVID-19 vaccine developed by CanSino comprising half a million doses of finished product from its plant in Tianjin, China, and the remainder delivered in bulk to be filled and finished in Malaysia. In addition, approval has been given by the National Pharmaceutical Regulatory Agency for the Convidecia Recombinant Novel Coronavirus Vaccine.

September 8, 2021 - The Indonesian Drug and Food Monitoring Agency authorized the emergency use of the US-made Janssen and China-manufactured Convidecia COVID-19 vaccines in Indonesia.

August 30, 2021 - CanSino vaccines will step up vaccination in six states that have yet to vaccinate 50% of the adult Malaysian population.

July 26, 2021 - The Lancet published a study: Safety, tolerability, and immunogenicity of an aerosolized adenovirus type-5 vector-based COVID-19 vaccine (Ad5-nCoV) in adults: preliminary report of an open-label and randomized phase 1 clinical trial. Interpretation - Aerosolised Ad5-nCoV is well tolerated, and two doses of aerosolized Ad5-nCoV elicited neutralizing antibody responses, similar to one dose of intramuscular injection. An aerosolized booster vaccination at 28 days after first intramuscular injection-induced strong IgG and neutralizing antibody responses. The efficacy and cost-effectiveness of aerosol vaccination should be evaluated in future studies.

June 28, 2021 - The Collegiate Board of the National Health Surveillance Agency in Brazil decided unanimously to close the process that dealt with the temporary authorization of emergency use, on an experimental basis, of the Convidecia vaccine (Ad5-nCoV Vaccine CanSino).

May 24, 2021 - CanSino Biologics Inc. announced that its Convidecia™ had been granted a Good Manufacturing Practice certificate by the Hungarian National Institute of Pharmacy and Nutrition.

May 21, 2021 - CanSino Biologics Inc. announced that its Recombinant Novel Coronavirus Vaccine, Convidecia, issued a Good Manufacturing Practice certificate by the Hungarian National Institute of Pharmacy and Nutrition.

May 7, 2021 - Local media reported Pakistan's Federal Planning Minister Asad Umar stated the Cansino vaccine would be available by the end of May 2021.

April 27, 2021 - CanSino Biologics is expected to increase the annual production capacity of its single-dose, recombinant adenovirus vector COVID-19 vaccine to 200 to 300 million doses after its third plant comes into full operation.

April 14, 2021 -  A financial filing to the Hong Kong stock exchange said no serious adverse events related to blood clots had been reported among the almost 1 million doses of its Covid-19 vaccine that had been administered to date.

April 8, 2021 - CanSino Biologics Inc. announced that the Instituto de Salud Pública de Chile granted emergency use authorization for its Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) ("Ad5-nCoV", Convidecia™). This marks the first approval of Convidecia in South America and the first single-dose COVID-19 vaccine approved for emergency use in Chile.

April 2, 2021 - Solution Biologics Sdn Bhd has entered into a supply agreement with the Malaysian government to supply 3.5 million doses of the Convidicea recombinant novel coronavirus vaccine.

March 22, 2021 - CanSinoBIO Biologics Inc. announced that the Hungarian National Institute of Pharmacy and Nutrition granted emergency use authorization for its Recombinant Novel Coronavirus Vaccine Convidecia™. The approval is based on the vaccine's interim results for Phase III clinical trial and marks the first approval of Convidecia™ in a European Union member state. Globally, Convidecia received authorization for emergency use by the Federal Commission for Protection against Sanitary Risks of Mexico and the Drug Regulatory Authority of Pakistan for adults aged 18 and above in February 2021.

March 22, 2021 - The National Medical Products Administration of China approved CanSinoBIO's clinical trial application for an inhaled version of the COVID-19 vaccine. The safety and efficacy of the inhaled vaccine remain "subject to confirmation," the firm said.

February 28, 2021 - China's single-dose COVID-19 vaccine began its roll-out.

February 25, 2021 - CanSino Biologics Inc. announced that the National Medical Products Administration of China had granted conditional marketing authorization for its Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) ("Ad5-nCoV", trade name: Convidecia™), making it the first of its kind authorized in China.

February 24, 2021 - CanSino Biologics Inc. announced today that it had filed an application with National Medical Products Administration (NMPA) for conditional marketing authorization of the Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) ("Ad5-nCoV", trade name: Convidecia™). The NMPA has accepted the application.

February 13, 2021 - Pakistan's Drug Regulatory Authority approved the emergency use of Convidicea (Ad5-nCoV) on the recommendations of an experts committee. Pakistan is the second country after Mexico to approve the vaccine.

February 8, 2021 - Social Media reported CanSino Biologics Inc's Convidicea COVID-19 vaccine candidate presented 65.7% efficacy in preventing symptomatic cases and a 90.98% success rate in stopping the severe disease an interim analysis of global trials conducted in Pakistan.

February 4, 2021 - CanSino, the vaccine being tested in southern Chile, is almost ready for international authorization. More than 3,500 volunteers have been inoculated with the experimental vaccine, waiting for volunteers' enrollment to conclude at the end of March. For analysis of the trials, the plan was to wait for 150 cases of Covid to be found in the world within a year, but the figure was reached earlier than previously thought. If the vaccine is approved in Chile, it will be the central laboratory in Canada that will finally decide whether it is marketable or not.

December 15, 2020 - CanSino, the Chinese vaccine nobody talks about, begins testing in southern Chile this Wednesday. In Chile, in addition to Sinovac, which has more than one hundred vaccinated volunteers in the country, CanSino Biologics began its tests in Santiago two weeks ago and began its tests this Wednesday in the south, in conjunction with the Universidad de la Frontera (UFRO), seeking to enroll people from Talcahuano, Valdivia, Osorno, Temuco, and Puerto Montt. The vaccine, developed by CanSino, the Beijing Institute of Biotechnology, and the Academy of Military Medical Sciences, is a viral vector vaccine similar to Gamaleya's AstraZeneca and Gam-COVID-Vac developed in Russia.

      December 6, 2020 -  The Health Ministry has allowed Russia's participation in the massive international multi-center randomized placebo-controlled third phase of clinical trials of the candidate coronavirus vaccine's efficacy and immunogenicity Ad5-nCov made by CanSino Biologics. The international trials are conducted in partnership with Petrovax," the Company said.

      November 7, 2020 - CanSinoBIO announced it had initiated the Phase III clinical trial for a recombinant COVID-19 vaccine (Ad5-nCoV) developed in Mexico. The Mexican authority approved the study in October. The trial aims to recruit a total number of 15,000 subjects to demonstrate the candidate's efficacy further. Previously, CanSinoBIO signed an advance purchase agreement with Mexico's government to supply 35 million doses of the COVID-19 vaccine candidate. Dr. Xuefeng Yu, CEO of CanSinoBIO, stated, "Launching the clinical study of Ad5-nCoV in Mexico, represents another milestone of CanSinoBIO. We are delighted to collaborate with EPIC and the authorities that make this initial clinical study possible in Mexico. Hopefully, we could see the outcome of the study very soon and contributes to the pandemic fight in Mexico."

      October 15, 2020 - CanSino Biologics Inc. announced that it had signed an advance purchase agreement with the Mexican government, which aims to provide Mexico with 35 million doses of Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector) ("Ad5-nCoV"). According to the agreement, CanSinoBIO will supply 35 million doses of the COVID-19 vaccine to Mexico from 2020 to 2021.

      October 2, 2020 - SOLBIO has signed a deal with China-based CanSino Biologics to distribute the Ad5-nCoV vaccine candidate targeting COVID-19 in Malaysia.

      September 21, 2020 - The Petrovax company, CanSino Biologics Inc. The contract research organization OCT Clinical has launched its first volunteers at Moscow medical centers. According to clinical regulations, study participants will be under direct supervision for the first 28 days after vaccination. After that, they will have to undergo four interim face-to-face examinations at treatment centers. 

      September 10, 2020 - China media reported CanSino's Chief Scientific Officer Zhu Tao stressed the safety of a recombinant adenovirus vector vaccine the Company developed after a trial on another vaccine using a similar mechanism was suspended AstraZeneca and Oxford University after a volunteer became ill during the trial. One difference is that Ad5-nCoV uses an adenovirus that exists in human bodies, while the AstraZeneca vaccine candidate uses chimpanzee adenovirus. No severe adverse effects from Ad5-nCoV have been discovered so far, Zhu noted.

      September 2, 2020 - CanSino Biologics announced that it had initiated phase 3 clinical trials for its Ad5-nCoV vaccine candidate in Russia after receiving approval from Moscow's health ministry.

      August 27, 2020 - The National Research Council of Canada announced a COVID-19 vaccine-development partnership between China's CanSino Biologics and Dalhousie University in Nova Scotia had been abandoned.

      August 17, 2020 - Russia's Petrovax has started a late-stage clinical trial of a COVID-19 candidate vaccine from CanSino Biologics. Inc.

      August 9, 2020 - Saudi Arabia announced that it would begin a Phase 3 clinical trial on around 5,000 people.

      July 20, 2020 - The Lancet published 'Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomized, double-blind, placebo-controlled, phase 2 trial. The Ad5-vectored COVID-19 vaccine at 5 × 1010 viral particles is safe and induced significant immune responses in the majority of recipients after a single immunization.

      July 11, 2020 - Chinese vaccine developer CanSino Biologics announced its talks with Russia, Brazil, Chile, and Saudi Arabia to launch a Phase III trial of its experimental COVID-19 vaccine.

      June 29, 2020 - China's military has received permission to use a COVID-19 vaccine candidate, Ad5-nCoV, developed by its research unit and CanSino Biologics after clinical trials proved it was safe and somewhat efficient.

      June 25, 2020 - China's Central Military Commission approved the use of the vaccine by the military for 1-year.

      May 22, 2020 - The first human trial of a COVID-19 vaccine finds it is safe and induces a rapid immune response. "These results represent an important milestone. The trial demonstrates that a single dose of the new adenovirus type 5 vectored COVID-19 (Ad5-nCoV) vaccine produces virus-specific antibodies and T cells in 14 days, making it a potential candidate for further investigation", says Professor Wei Chen from the Beijing Institute of Biotechnology in Beijing, China.

      On May 16, 2020, Health Canada approved human clinical trials for a possible coronavirus vaccine. Prime Minister Justin Trudeau says the first Canadian clinical trials will be conducted out of the Canadian Centre for Vaccinology at Dalhousie University.

      May 12, 2020 - The National Research Council of Canada announced a collaboration with CanSino Biologics Inc. to advance bioprocessing and clinical development in Canada of a candidate vaccine against COVID-19 disease, which is caused by SARS-CoV-2 coronavirus.

      April 9, 2020 - CanSino Biologics Inc. Chairman Xuefeng Yu filed a public statement which says 'Based on the preliminary safety data of phase I clinical trial for the Recombinant Novel Coronavirus Disease Vaccine (Adenovirus Type 5 Vector) (the "Ad5-nCoV"), the Company and the Institute of Biotechnology, Academy of Military Medical Sciences plan to initiate phase II clinical trial for Ad5-nCoV in China.

      March 17, 2020 - CanSinoBIO's Investigational Vaccine Against COVID-19 Approved for Phase 1 Clinical Trial in China. "Thanks to our collaborators and our diligent team, who worked almost around the clock since late January to develop this vaccine candidate with sound scientific data to support IND filing," said Xuefeng Yu, Chairman and CEO of CanSinoBIO, "Having committed to providing unconditional support to fight against the global pandemic, CanSinoBIO is determined to launch our vaccine product candidate as soon as possible with no compromise on quality and safety."

      CanSino Convidicea Vaccine Clinical Trials

      CanSino Convidicea vaccine continues to be tested in several clinical trials.

      On January 4, 2022, a phase 1/2 study found that a heterologous boost immunization with an aerosolized Ad5-nCoV is safe and highly immunogenic in adults who have received two-dose inactivated COVID-19 vaccine CoronaVac as the primary series vaccination.

      In addition, the results from a Phase 4 clinical trial were announced on September 6, 2021. Between May 25 and 26, 2021, a total of 300 participants were enrolled. Participants who received a booster shot with a heterologous dose of Convidecia reported increased frequencies of solicited injection-site reactions than did those who received a homogeneous dose of CoronaVac, but frequencies of systemic reactions. The adverse reactions were generally mild to moderate. The heterologous immunization with Convidecia induced higher live viral neutralizing antibodies than did the homogeneous immunization with CoronaVac (197.4[167.7, 232.4] vs. 33.6[28.3, 39.8] and 54.4[37. 9, 78.0] vs. 12.8[9.3, 17.5]) at day 14 in the three- and two-dose regimen cohort, respectively.