NCT04398147

Brief Summary

This study is a phase I /II adaptive clinical trial to evaluate the safety, tolerability and the Immunogenicity of Ad5-nCoV in healthy adults from 18 to \<55 and 65 to \<85 years of age,with the randomized, observer-blind, dose-escalation design

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
696

participants targeted

Target at P75+ for phase_1 covid19

Timeline
Completed

Started Aug 2020

Typical duration for phase_1 covid19

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 18, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 21, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

August 1, 2020

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 20, 2021

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2021

Completed
Last Updated

July 2, 2020

Status Verified

May 1, 2020

Enrollment Period

1.4 years

First QC Date

May 18, 2020

Last Update Submit

June 30, 2020

Conditions

Keywords

COVID-19vaccineAd5SafetyImmunogenicityDose-escalationSARS-CoV-2

Outcome Measures

Primary Outcomes (3)

  • Incidence of the Solicited AE in all groups

    The occurrence of Solicited AE in all groups within 0-6 days after each vaccination;

    0-6 days after each vaccination

  • Incidence of Unsolicited AE in all groups

    The occurrence of Unsolicited AE in all groups within 0-28 days after each vaccination.

    0-28 days after each vaccination

  • Incidence of Serious adverse events (SAE) in all groups

    The occurrence of Serious adverse events (SAE) in all groups within 6 months after the final vaccination.

    6 months after the final vaccination

Secondary Outcomes (10)

  • Geometric mean titer (GMT) of the IgG antibody against SARS-CoV-2 (ELISA method);

    Day 0, Day 14, Day 28, Day 84 and Day 168 after vaccination in the one dose group and Day 0, 14, 28, 56, 70, 84, and 224 in the two dose group

  • Seroconversion rate of the IgG antibody against SARS-CoV-2(ELISA method )

    Day 14, Day 28, Day 84 and Day 168 after vaccination in the one dose group and Day 14, 28, 56, 70, 84, and 224 in the two dose group

  • Geometric Mean Increase Ratio (GMI) of the specific antibody against SARS-CoV-2(ELISA method);

    Day 14, Day 28, Day 84 and Day 168 after vaccination in the one dose group and Day 14, 28, 56, 70, 84, and 224 in the two dose group

  • Geometric mean titer (GMT) of the neutralizing antibody against SARS-CoV-2(Pseudo-viral neutralization assay)

    Day 0, Day 14, Day 28 and Day 168 after vaccination in the one dose group and Day 0, 14, 28, 56, 70, 84, and 224 in the two dose group

  • Seroconversion rate of the neutralizing antibody against SARS-CoV-2(Pseudo-viral neutralization assay)

    Day 14, Day 28 and Day 168 after vaccination in the one dose group and Day 14, 28, 56, 70, 84, and 224 in the two dose group

  • +5 more secondary outcomes

Study Arms (28)

phase ⅠLow single dose (18-<55)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 5E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo low single dose (18-<55)

PLACEBO COMPARATOR

6 subjects, Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

phase ⅠLow 2 dose (18-<55)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 5E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo low 2 dose (18-<55)

PLACEBO COMPARATOR

6 subjects, Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

phase ⅠLow single dose (65-<85)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 5E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo low single dose (65-<85)

PLACEBO COMPARATOR

3 subjects, Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

phase ⅠLow 2 dose (65-<85)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 5E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo low 2 dose (65-<85)

PLACEBO COMPARATOR

3 subjects, Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

phase ⅠMedium single dose (65-<85)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 10E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo medium single dose (65-<85)

PLACEBO COMPARATOR

3 subjects, Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

phase ⅠMedium 2 dose (65-<85)

EXPERIMENTAL

12 subjects, Ad5-nCoV containing 10E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

phase ⅠPlacebo medium 2 dose (65-<85)

PLACEBO COMPARATOR

3 subjects, Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

Phase II Low single dose (18-<55)

EXPERIMENTAL

50 subjects, Ad5-nCoV containing 5E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo low single dose (18-<55)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

Phase II Low 2 dose (18-<55)

EXPERIMENTAL

50 subjects, Ad5-nCoV containing 5E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo low 2 dose (18-<55)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

Phase II Low single dose (55-<85)

EXPERIMENTAL

50 subjects, Ad5-nCoV containing 5E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo low single dose (55-<85)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

Phase II Low 2 dose (55-<85)

EXPERIMENTAL

50 subjects, Ad5-nCoV containing 5E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo low 2 dose (55-<85)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

Phase II medium single dose (55-<85)

EXPERIMENTAL

50 subjects, Ad5-nCoV containing 10E10 vp, single dose, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo medium single dose (55-<85)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, single dose, Intramuscular administration

Biological: Placebo

Phase II medium 2 dose (55-<85)

EXPERIMENTAL

50 subjects,Ad5-nCoV containing 10E10 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo medium 2 dose (55-<85)

PLACEBO COMPARATOR

10 subjects,Placebo containing 0 vp, 2 dose 56 days apart, Intramuscular administration

Biological: Placebo

Phase II Low 1 or 2 dose (18-<55)

EXPERIMENTAL

100 subjects,Ad5-nCoV containing 5E10 vp, 1or2 dose, Intramuscular administration ,according to the Previous trial results

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo 1 or 2 dose (18-<55)

PLACEBO COMPARATOR

20 subjects,placebo containing 0 vp, 1or2 dose, Intramuscular administration

Biological: Placebo

Phase II Low or medium dosage 1 or 2 dose (55-<85)

EXPERIMENTAL

100 subjects,Ad5-nCoV containing 5E10 vp or 10E10vp, 1or2 dose, Intramuscular administration,according to the Previous trial results

Biological: Recombinant Novel Coronavirus Vaccine (Adenovirus Type 5 Vector)

Phase II placebo Low or medium,1 or 2 dose (55-<85)

PLACEBO COMPARATOR

20 subjects,placebo containing 0 vp, 1or2 dose, Intramuscular administration

Biological: Placebo

Interventions

Intramuscular administration

Phase II Low 1 or 2 dose (18-<55)Phase II Low 2 dose (18-<55)Phase II Low 2 dose (55-<85)Phase II Low or medium dosage 1 or 2 dose (55-<85)Phase II Low single dose (18-<55)Phase II Low single dose (55-<85)Phase II medium 2 dose (55-<85)Phase II medium single dose (55-<85)phase ⅠLow 2 dose (18-<55)phase ⅠLow 2 dose (65-<85)phase ⅠLow single dose (18-<55)phase ⅠLow single dose (65-<85)phase ⅠMedium 2 dose (65-<85)phase ⅠMedium single dose (65-<85)
PlaceboBIOLOGICAL

Intramuscular administration

Phase II placebo 1 or 2 dose (18-<55)Phase II placebo Low or medium,1 or 2 dose (55-<85)Phase II placebo low 2 dose (18-<55)Phase II placebo low 2 dose (55-<85)Phase II placebo low single dose (18-<55)Phase II placebo low single dose (55-<85)Phase II placebo medium 2 dose (55-<85)Phase II placebo medium single dose (55-<85)phase ⅠPlacebo low 2 dose (18-<55)phase ⅠPlacebo low 2 dose (65-<85)phase ⅠPlacebo low single dose (18-<55)phase ⅠPlacebo low single dose (65-<85)phase ⅠPlacebo medium 2 dose (65-<85)phase ⅠPlacebo medium single dose (65-<85)

Eligibility Criteria

Age18 Years - 84 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthy adults from 18 to \<55 and 65-\<85 years of age at the time of enrollment;
  • Able to provide consent to participate in and having signed an Informed Consent Form (ICF);
  • Able and willing to complete all the scheduled study procedures during the whole study follow-up period (about 6-8 months, depending on group);
  • Negative result of HIV, hepatitis B and C screening;
  • Oral temperature \< 38.0℃;
  • Negative IgG and IgM antibodies against COVID-19;
  • Negative result of real-time quantitative PCR screening of nasopharyngeal swabs/sputum for SARS-CoV-2;
  • A body mass index (BMI) between 18-35;
  • Hematological examination is within normal range, or no greater than a grade 1 abnormality and no clinical significance as assessed by the study investigator (including white blood cell count, lymphocyte count, neutrophil count, eosinophil count, platelet, hemoglobin, alanine aminotransferase ALT, aspartate aminotransferase AST, total bilirubin, blood glucose and creatinine);
  • Transient mild laboratory abnormalities may be rescreened once and the participant will be deemed eligible if the laboratory repeat test is normal as per local laboratory normal values and investigator assessment.
  • Good general health status, as determined by history and physical examination no greater than 14 days prior to administration of the test article.
  • If female of child-bearing potential and heterosexually active, has practiced adequate contraception for 30 days prior to injection, has a negative pregnancy test on the day of injection, and has agreed to continue adequate contraception until 180 days after injection. (Please refer to the glossary for the definition of child-bearing potential and adequate contraception).

You may not qualify if:

  • Personal history of seizure disorder, encephalopathy or psychosis;
  • Allergic history to any vaccine, or allergic to any ingredient of the Ad5-nCoV;
  • Woman is pregnant or lactating, positive urine pregnancy test or plan to become pregnant during the next 6 months;
  • Any acute febrile disease (oral temperature ≥38.0℃ or active infectious disease on the day of vaccination;
  • Medical history of SARS (SARS-CoV-1);
  • Serious cardiovascular diseases, such as arrhythmia, conduction block, myocardial infarction, severe hypertension not controlled with medication;
  • Serious chronic disease such as asthma, diabetes and thyroid disease, etc.;
  • Congenital or acquired angioedema;
  • Immunodeficiency, asplenia or functional asplenia;
  • Platelet disorder or other bleeding disorder that may cause intramuscular injection contraindication;
  • Immunosuppressive medication, anti-allergic, cytotoxic therapy, inhaled corticosteroids (excluding corticosteroid spray for allergic rhinitis, surface corticosteroid therapy for acute non-complicated dermatitis) in the last 6 months;
  • Prior administration of blood products in last 4 months;
  • Other vaccination(s) or investigational drugs within 1 month before study onset, or planned use during the study period;
  • Prior administration of live attenuated vaccine within 1 month before study onset;
  • Prior administration of subunit or inactivated vaccine within 14 days before study onset;
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Canadian Center for Vaccinology

Halifax, Canada

Location

MeSH Terms

Conditions

COVID-19Alzheimer Disease 5

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Scott A Halperin, MD

    Canadian Center for Vaccinology

    PRINCIPAL INVESTIGATOR
  • Joanne M Langley, MD

    Canadian Center for Vaccinology

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Luis H Barreto, PhD/MBA

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 18, 2020

First Posted

May 21, 2020

Study Start

August 1, 2020

Primary Completion

December 20, 2021

Study Completion

December 30, 2021

Last Updated

July 2, 2020

Record last verified: 2020-05

Data Sharing

IPD Sharing
Will not share

Locations