Evaluate the Safety and Immunogenicity of Ad5 COVID-19 Vaccines for Booster Use in Children Aged 6-17 Years.

NCT ID: NCT05330871

Last Updated: 2023-04-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

410 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-04-17

Study Completion Date

2023-05-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a single center, open-label, parallel controlled, and randomized Phase II clinical trial to evaluate the safety and immunogenicity of two types of Recombinant Novel Corona Virus Vaccine (Adenovirus type 5 vector) in population aged 6-17 years who have been previously immunized with 2 doses of inactivated COVID-19 vaccine. This is to evaluate the safety and immunogenicity of different heterologous prime-boost regimen in this population.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Participants will be randomized into two age groups: children aged 6-12 years and adolescents aged 13-17 years. Subjects who have previously been immunized with 2 doses of inactivated COVID-19 vaccine will be randomized into the booster dose groups to receive either 1 dose of 0.1ml inhaled Ad5- nCoV-IH, 1 dose of 0.3ml intramuscular Ad5-nCoV-IM or 1 dose of 0.5ml intramuscular inactivated vaccine ICV as activecomparator in a ratio of 3:1:1. Participants who have not received any COVID-19 vaccine previously will be randomized into 2 primary dose age groups: children aged 6-12 years and adolescents aged 13-17 years to receive 2 doses of 0.1ml inhaled Ad5-nCoVIH. The first 5 subjects of each age group will enter the sentinel group to receive Ad5-nCoV-IH and monitor for safety before the rest of the enrollment process.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

COVID-19

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

1. Adolescent booster sentinel group

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

1 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

2. Adolescent booster safety group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

2 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

3. Adolescent booster immuno-persistency group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

3 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

4. Adolescent booster cellular immunity group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

4 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

5. Adolescent booster safety group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

5 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

6. Adolescent booster immuno-persistency group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

6 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

7. Adolescent booster cellular immunity group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

7 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

8. Adolesent booster safety group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

8 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

ICV, 1 dose 0.5ml

9. Adolescent booster immunopersistency group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

9 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

ICV, 1 dose 0.5ml

10. Adolescent booster cellular immunity group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

10 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

1 dose 0.5ml

11. Children booster sentinel group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

11 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

12. Children booster safety group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

12 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

13. Children booster immuno-persistency group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

13 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

14. Children booster cellular immunity group to receive Ad5-nCoV-IH

1 dose of 0.1ml Ad5-nCoV-IH

Group Type EXPERIMENTAL

14 Nebulized inhalation for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 1 dose 0.1ml

15. Children booster safety group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

15 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

16. Children booster immuno-persistency group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

16 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

17. Children booster cellular immunity group to receive Ad5-nCoV-IM

1 dose of 0.3ml Ad5-nCoV-IM

Group Type EXPERIMENTAL

17 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IM, 1 dose 0.3ml

18. Children booster safety group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

18 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

ICV, 1 dose 0.5ml

19. Children booster immuno-persistency group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

19 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

ICV, 1 dose 0.5ml

20. Children booster cellular immunity group to receive ICV

1 dose of 0.5ml ICV

Group Type ACTIVE_COMPARATOR

20 Intramuscular injection for booster groups

Intervention Type BIOLOGICAL

ICV, 1 dose 0.5ml

21. Adolescent primary sentinel group

2 doses of 0.1ml Ad5-nCoV-IH, 56 days interval

Group Type EXPERIMENTAL

21 Nebulized inhalation for primary groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 2 doses 0.1ml

22. Adolescent primary group

2 doses of 0.1ml Ad5-nCoV-IH, 56 days interval

Group Type EXPERIMENTAL

22 Nebulized inhalation for primary groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 2 doses 0.1ml

23. Children primary sentinel group

2 doses of 0.1ml Ad5-nCoV-IH, 56 days interval

Group Type EXPERIMENTAL

23 Nebulized inhalation for primary groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 2 doses 0.1ml

24. Children primary group

2 doses of 0.1ml Ad5-nCoV-IH, 56 days interval

Group Type EXPERIMENTAL

24 Nebulized inhalation for primary groups

Intervention Type BIOLOGICAL

Ad5-nCoV-IH, 2 doses 0.1ml

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

1 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

2 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

3 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

4 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

5 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

6 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

7 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

8 Intramuscular injection for booster groups

ICV, 1 dose 0.5ml

Intervention Type BIOLOGICAL

9 Intramuscular injection for booster groups

ICV, 1 dose 0.5ml

Intervention Type BIOLOGICAL

10 Intramuscular injection for booster groups

1 dose 0.5ml

Intervention Type BIOLOGICAL

11 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

12 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

13 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

14 Nebulized inhalation for booster groups

Ad5-nCoV-IH, 1 dose 0.1ml

Intervention Type BIOLOGICAL

15 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

16 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

17 Intramuscular injection for booster groups

Ad5-nCoV-IM, 1 dose 0.3ml

Intervention Type BIOLOGICAL

18 Intramuscular injection for booster groups

ICV, 1 dose 0.5ml

Intervention Type BIOLOGICAL

19 Intramuscular injection for booster groups

ICV, 1 dose 0.5ml

Intervention Type BIOLOGICAL

20 Intramuscular injection for booster groups

ICV, 1 dose 0.5ml

Intervention Type BIOLOGICAL

21 Nebulized inhalation for primary groups

Ad5-nCoV-IH, 2 doses 0.1ml

Intervention Type BIOLOGICAL

22 Nebulized inhalation for primary groups

Ad5-nCoV-IH, 2 doses 0.1ml

Intervention Type BIOLOGICAL

23 Nebulized inhalation for primary groups

Ad5-nCoV-IH, 2 doses 0.1ml

Intervention Type BIOLOGICAL

24 Nebulized inhalation for primary groups

Ad5-nCoV-IH, 2 doses 0.1ml

Intervention Type BIOLOGICAL

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Inactivated COVID-19 Vaccine Inactivated COVID-19 Vaccine Inactivated COVID-19 Vaccine Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Recombinant Corona Virus Vaccine (Adenovirus Type 5 Vector) Inactivated COVID-19 Vaccine Inactivated COVID-19 Vaccine Inactivated COVID-19 Vaccine Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation Recombinant COVID-19 Vaccine for Inhalation

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Participants aged 6-17 years at the time of enrollment.
* Obtain written informed assent from participants and consent from parents, guardians or legal representatives.
* Able and willing to complete all the scheduled study procedures during the whole study follow-up period of 12 months.
* Have not received any COVID-19 vaccines (for primary groups only).

Exclusion Criteria

* Medical or family history of seizures, epilepsy, encephalopathy, and psychosis disorders.
* History of allergies to any ingredient of Ad5-nCoV, history of serious allergic reactions to any vaccine, history of allergies and asthma.
* History of vaccine related SAEs after receiving any COVID-19 vaccines.
* Positive urine pregnancy test result, females with child bearing potential (have had menarche).
* Acute febrile diseases and infectious diseases, medical history of SARS (SARS-CoV-1).
* Axillary temperature \>37.0#.
* Serious cardiovascular diseases, such as arrhythmia, conduction block, myocardial infarction, severe hypertension and uncontrollable by medications.
* Severe chronic diseases or with advanced stage conditions which cannot be controlled smoothly, such as diabetes, thyroid disease, etc.
* Congenital or acquired angioedema/neurological edema.
* Urticaria history within 1 year before receiving the study vaccine.
* Asplenia or functional aspleenia.
* Thrombocytopenia or other coagulation disorders (may cause contraindications for intramuscular injection).
* Trypanophobia.
* Severe nasal or oral diseases, such as acute rhinitis (sinusitis), allergic rhinitis, oral ulcers, throat redness, and swelling.
* Lung function abnormalities such as chronic obstructive pulmonary disease and pulmonary fibrosis.
* Abnormal laboratory test indexes that are clinical significant as judged by the investigator (including white blood cell count, lymphocyte count, eosinophils, neutrophils, platelets, hemoglobin, alanine aminotransferase ALT, aspartate aminotransferase AST, total bilirubin , creatinine, activated partial thromboplastin time) (for sentinel and safety groups only).
* Respiratory rate ≥ 17 times per minute (for sentinel and safety groups only).
* History of receiving immunosuppressant therapy, anti-allergic therapy, cytotoxic therapy, nebulized corticosteroid therapy in the past 6 months (not including corticosteroid spray treatment for allergic rhinitis, and surface corticosteroid treatment for acute non-complicated dermatitis).
* Prior administration of blood products in last 4 months.
* Received other investigational drugs within 1 month before the study.
* Prior administration of live attenuated vaccines within 1 month before the study.
* Prior administration of subunit or inactivated vaccines within 14 days before the study.
* Current anti-tuberculosis therapy.
* Medical history of Covid-19 disease/infection.
* History of epidemiological exposure to COVID-19; have traveled to medium or high-risk areas in the past 21 days or have a history of travelling outside the country
* Any condition that in the opinion of the investigators may interfere with the participants' compliance or evaluation of study objectives or informed consent (i.e. medical, psychological, social or other conditions, etc).


* Vaccine related SAE post first dose vaccination.
* Serious allergic reactions post first dose vaccination.
* Other reasons in the opinion of the investigator.
Minimum Eligible Age

6 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Seventh Medical Center of PLA General Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Chen Dong

Role: STUDY_CHAIR

Seventh Medical Center of PLA General Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

CDC of of Luxi County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province

Xiangxi, Hunan, China

Site Status

Countries

Review the countries where the study has at least one active or historical site.

China

References

Explore related publications, articles, or registry entries linked to this study.

Huang T, Zhang S, Dai DF, Wang BS, Zhuang L, Huang HT, Wang ZF, Zhao JS, Li QP, Wu SP, Wang X, Zhang WD, Zhao ZH, Li H, Zhang YP, Yang XL, Jiang XY, Gou JB, Hou LH, Gao LD, Feng ZC. Safety and immunogenicity of heterologous boosting with orally aerosolised or intramuscular Ad5-nCoV vaccine and homologous boosting with inactivated vaccines (BBIBP-CorV or CoronaVac) in children and adolescents: a randomised, open-label, parallel-controlled, non-inferiority, single-centre study. Lancet Respir Med. 2023 Aug;11(8):698-708. doi: 10.1016/S2213-2600(23)00129-7. Epub 2023 May 17.

Reference Type DERIVED
PMID: 37209700 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CT-Ad5-nCoV-IH-#

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.