NDV-HXP-S Vaccine Clinical Trial (COVIVAC)
A Phase 1/2 Randomized, Active- Controlled, Observer-blind Trial to Assess the Safety and Immunogenicity of COVIVAC Vaccine Produced by IVAC in Adults ≥ 18 and ≥ 60 Years Old in Vietnam
1 other identifier
interventional
374
1 country
1
Brief Summary
This prospective, single-center, randomized, placebo-controlled (phase 1) and active-controlled (phase 2), observer-blind Phase 1/2 study includes two separate parts. After completing the phase 1 interim analysis, 2 doses (3mcg and 6mcg) were selected for phase 2. In Part 2 of this combined Phase 1/2 study, 374 adults aged 18-75 years will be randomized (1:1:1) to AZD1222, or COVIVAC 3 µg being evaluated in Phase 1 or the intermediate dose of COVIVAC 6 µg being selected after consideration of phase 1 results.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2 covid19
Started Aug 2021
1 active site
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
Study Start
First participant enrolled
August 11, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 18, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 11, 2022
CompletedFirst Submitted
Initial submission to the registry
July 8, 2023
CompletedFirst Posted
Study publicly available on registry
July 11, 2023
CompletedResults Posted
Study results publicly available
January 15, 2025
CompletedJanuary 15, 2025
June 1, 2024
2 months
July 8, 2023
July 16, 2023
November 27, 2024
Conditions
Outcome Measures
Primary Outcomes (7)
Percentage of Participants With Local and Systemic Solicited AEs by Severity During the First 7 Days After Each Vaccination.
* Local solicited AEs: Pain or tenderness, Swelling or induration, Erythema * Systemic solicited AEs: Fever (defined as oral temperature ≥ 38°C), Headache, Fatigue or malaise, Myalgia, Arthralgia, Nausea or vomiting * Severity grading: Mild = Causes no or minimal interference with normal daily activities; intervention not indicated; Moderate =Interferes with but does not prevent normal daily activities; intervention indicated; Severe = Prevents normal daily activities; intervention or hospitalization indicated.
7 days after each vaccination
Percentage of Participants With Unsolicited AEs by Severity and Relatedness During the First 28 Days After Each Vaccination
* An unsolicited adverse event is any AE reported spontaneously by the subject, observed by the study staff during study visits or those identified during review of medical records or source documents. Solicited AEs with an onset after the seven-day solicitation period will be considered unsolicited AEs * Severity grading: Mild = Causes no or minimal interference with normal daily activities; intervention not indicated; Moderate =Interferes with but does not prevent normal daily activities; intervention indicated; Severe = Prevents normal daily activities; intervention or hospitalization indicated.
28 days after each vaccination
Percentage of Participants With SAEs Severity and Relatedness Throughout the Entire Study Period
A SAE is a specific AE that: * Results in death. * Is life-threatening.\* * Requires inpatient hospitalization or prolongation of an existing hospitalization.\*\* * Results in a persistent or significant disability or incapacity.\*\*\* * Results in a congenital anomaly or birth defect.
From the first vaccination until Day 197
Percentage of Participants With AE of Special Interest by Severity and Relatedness Throughout the Entire Study Period
AEs of Special interest which are AEs relevant to COVID-19 and potential immune-mediated medical conditions (PIMMC) occurred throughout the entire study period
From first vaccination to Day 197
NT50 GMT at 14 Days and 6 Months After Second Vaccination
NT50 GMT against SARS-CoV-2 pseudovirus in subjects who are anti-S IgG seronegative at baseline
14 days and 6 months after second vaccination
GMFR in NT50 at 14 Days and 6 Months After Second Vaccination
GMFR in NT50 against SARS-CoV-2 pseudovirus measured at 14 days and 6 months after second vaccination to the baseline
14 days and 6 months after second vaccination
Percentage of Subjects With Seroresponse in NT50 at 14 Days and 6 Months After Second Vaccination
Seroresponses against SARS-CoV-2 pseudovirus as defined by a ≥ 4-fold increase from baseline
14 days and 6 months after second vaccination
Secondary Outcomes (3)
IgG GMC at 14 Days and 6 Months After Second Vaccination
14 days and 6 months after the second vaccination
GMFR in Anti-S IgG GMC at 14 Days and 6 Months After Second Vaccination
14 days and 6 months after the second vaccination
Percentage of Subjects With Seroresponses in Anti-S IgG Concentration at 14 Days and 6 Months After Second Vaccination
14 days and 6 months after the second vaccination
Other Outcomes (2)
IFN-gamma
14 days and 6 months after the second vaccination
IL5
14 days and 6 months after second vaccination
Study Arms (3)
COVIVAC 3 mcg
EXPERIMENTAL3 mcg IVAC COVIVAC vaccine for intramuscular injection administered as two doses (0.5mL each) 28 days apart.
COVIVAC 6 mcg
EXPERIMENTAL6 mcg IVAC COVIVAC vaccine for intramuscular injection administered as two doses (0.5mL each) 28 days apart.
AZD1222
ACTIVE COMPARATORAZD1222 (AstraZeneca) vaccine for intramuscular injection administered as two doses (0.5mL each) 28 days apart.
Interventions
Eligibility Criteria
You may qualify if:
- Adult ≥ 18 years old inclusive at the time of randomization.
- Having no clinically significant acute medical condition, and no chronic medical condition that has not been controlled within 90 days of randomization, as determined by medical history, physical examination, screening laboratory test results, and clinical assessment of the investigator.
- Has provided written informed consent prior to performance of any study-specific procedure.
- Has a body mass index (BMI) of 17 to 40 kg/m2, inclusive, at screening.
- Resides in study site area and is able and willing to adhere to all protocol visits and procedures.
- If a woman is of childbearing potential age, must not be breastfeeding or be pregnant (based on a negative urine pregnancy test at screening and during the 24 hours prior to receipt of the first dose of IP), must plan to avoid pregnancy for at least 28 days after the last dose of IP, and be willing to use an adequate method of contraception consistently and have a repeated pregnancy test prior to the second (last) dose of IP.
You may not qualify if:
- Use of any investigational medicinal product within 90 days prior to randomization or planned use of such a product during the period of study participation.
- History of administration of any non-study vaccine within 28 days prior to administration of study vaccine or planned vaccination within 3 months after enrolment.
- Previous receipt of investigational vaccine for SARS or MERS, or any investigational or licensed vaccine that may have an impact on interpretation of the trial results
- History of hypersensitivity reaction to any prior vaccination or known hypersensitivity to any component of the study vaccine
- History of egg or chicken allergy
- History of angioedema
- History of anaphylaxis (≥ grade 2)
- Acute illness (moderate or severe) and/or fever (body temperature measured orally ≥38°C)
- Any abnormal vital sign deemed clinically relevant by the PI
- A positive serologic test for hepatitis B (HBsAg) or hepatitis C (HCV Ab) (phase 1 only)
- History of confirmed HIV
- History of laboratory-confirmed COVID-19
- History of malignancy, excluding non-melanoma skin and cervical carcinoma in situ
- Any confirmed or suspected immunosuppressive or immunodeficient state
- Administration of immunoglobulin or any blood product within 90 days prior to first study injection or planned administration during the study period.
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
District Health Center of Vu Thu District
Thái Bình, Thai Binh, 414900, Vietnam
Related Publications (1)
Thiem VD, Anh DD, Ha VH, Van Thom N, Thang TC, Mateus J, Carreno JM, Raghunandan R, Huong NM, Mercer LD, Flores J, Escarrega EA, Raskin A, Thai DH, Van Be L, Sette A, Innis BL, Krammer F, Weiskopf D. Safety and immunogenicity of an inactivated recombinant Newcastle disease virus vaccine expressing SARS-CoV-2 spike: A randomised, comparator-controlled, phase 2 trial. Vaccine. 2025 Jan 12;44:126542. doi: 10.1016/j.vaccine.2024.126542. Epub 2024 Nov 29.
PMID: 39615342DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Thang Tran Cong, Medical office
- Organization
- PATH
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 8, 2023
First Posted
July 11, 2023
Study Start
August 11, 2021
Primary Completion
October 18, 2021
Study Completion
March 11, 2022
Last Updated
January 15, 2025
Results First Posted
January 15, 2025
Record last verified: 2024-06