An Efficacy and Safety Clinical Trial of an Investigational COVID-19 Vaccine (BBV152) in Adult Volunteers

NCT ID: NCT04641481

Last Updated: 2021-03-19

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

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

25800 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-16

Study Completion Date

2022-12-31

Brief Summary

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The BBV152 vaccine is being developed to prevent COVID-19, the disease resulting from Severe Acute Respiratory Syndrome coronavirus (SARS-CoV-2) infection. The study is designed to primarily evaluate the efficacy, safety, and immunogenicity of BBV152 to prevent COVID-19 for up to 1 year after the second dose of BBV152.

Detailed Description

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This is a phase 3 Event-Driven, randomized, double-blind, placebo-controlled, multicentre study to Evaluate the Efficacy, Safety, and Immunogenicity of BBV152, a Whole-Virion Inactivated SARS-CoV-2 Vaccine in Volunteers aged 18 years and above.

A total of 25,800 subjects will be enrolled and randomized in a 1:1 ratio to receive the BBV152 vaccine and control. All participants will be assessed for efficacy and safety endpoints and provide a Nasopharyngeal(NP) swab and blood sample before the first dose of IP. The NP swab and blood collected will be subject to RT-PCR and Anti-SARS-CoV-2 IgG antibodies. The results of this will not affect the enrollment of the participant. Participants who are found to be positive for either RT-PCR Or Anti-SARS-CoV-2 IgG antibodies will be excluded from the primary efficacy analysis. A safety follow-up will be done for all.

In addition, sites will be segregated based on the study objectives:

Category 1 (Symptomatic): In addition to administering the IP, a series of post-dose telephonic follow-up visits will be scheduled to detect suspect symptomatic COVID-19 infections. If a suspect is identified, a nasopharyngeal sample will be collected from the participant for detecting the presence of COVID-19 infection. Telephonic follow-up will occur at 15 Day intervals.

Category 2 (Symptomatic/Asymptomatic): In addition to administering the IP, a series of post-dose Nasopharyngeal samples for detecting an incidence of asymptomatic COVID-19 infection at 1-Month intervals will be collected.

Category 3 (Symptomatic/Asymptomatic+Immunogenicity): In addition to administering the IP and collecting NP samples, a series of blood samples will be collected for analyzing serum for immunological assessments.

The Phase 3 study will follow randomized study participants for efficacy until virologically confirmed (RT-PCR positive) symptomatic COVID-19 participants will be eligible for the primary efficacy analysis. After reaching the target number (n=130) of symptomatic COVID-19 cases, the study will continue to assess safety until the completion of the study duration. It is planned to continue the Phase 3 trial until 130 study participants in the per-protocol population develop PCR-confirmed symptomatic COVID-19 disease during follow-up beginning 14 days after the second dose of vaccine or placebo. We estimate that approximately 25,800 participants should be randomized to accrue these 130 events. The Lot-to-Lot consistency (Immunogenicity) study will be nested within the Phase 3 (Efficacy) study (in three selected sites). The Immunogenicity study will assess the immune response of a 2-dose regimen of BBV152B vaccine through geometric mean titers (GMTs) by neutralizing antibody, S-protein, and RBD specific anti-IgG binding titer in a subset of 600 (450 vaccine: 150 placebo) participants, across three consecutive manufacturing Lots. Data generated through Day 56 (Month 2) will be unblinded only to the biostatistician for evaluation of immune responses in the Immunogenicity subset.

Formal interim analyses are planned when approximately 1/3 and 2/3 of the target number of participants with confirmed symptomatic COVID-19 have been accrued, to determine whether the sample size and/or length of follow-up should be increased. This interim report containing safety and immunogenicity data will be submitted to CDSCO.

Conditions

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Covid19 SARS-CoV Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
All vaccine and placebo formulations are at a volume of 0.5mL per dose filled into a single-use glass vial. The appearance, color, and viscosity are identical across all vaccine and control formulations.

Participants, investigators, study coordinators, study-related personnel, and the sponsor will be blinded to the treatment group allocation (excluding an unblinded CRO, who is tasked with the dispatch and labeling of vaccine vials and the generation of the master randomization code). Participants will be assigned a computer-generated randomization code that maintains blinding. The blinded study nurse is responsible for vaccine preparation and administration. Each vial contains a unique code that ensured appropriate blinding.

Study Groups

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Study vaccine

BBV152B (6µg-Algel-IMDG)

Group Type EXPERIMENTAL

BBV152

Intervention Type BIOLOGICAL

BBV152 (6µg-Algel - Imidazoquinoline)

Placebo

Phosphate buffered saline with Alum (without antigen)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type BIOLOGICAL

Placebo (PBS+Alum, without antigen)

Interventions

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BBV152

BBV152 (6µg-Algel - Imidazoquinoline)

Intervention Type BIOLOGICAL

Placebo

Placebo (PBS+Alum, without antigen)

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Ability to provide written informed consent and availability to fulfill the study requirements.
* Participants of either gender of aged 18 years and above.
* Participants with good general health as determined by the discretion of the investigator, or participants with stable medical conditions. A stable medical condition is defined as a disease not requiring significant change in therapy or hospitalization or worsening disease during the 3 months before enrolment.
* For a female participant of child-bearing potential, planning to avoid becoming pregnant (use of an effective method of contraception or abstinence) from the time of study enrolment until at least eight weeks after the last vaccination.
* Male subjects of reproductive potential: Use of condoms to ensure effective contraception with the female partner and to refrain from sperm donation from first vaccination until at least 3 months after the last vaccination.
* Agrees not to participate in another clinical trial at any time during the study period.
* Agrees not to take any COVID-19 licensed vaccination for the entire duration of the study.
* Agrees to remain in the study area for the entire duration of the study.
* Willing to allow storage and future use of biological samples for future research

Exclusion Criteria

* History of any other COVID-19 investigational or licensed vaccination.
* Known history of SARS-CoV-2 infection, as declared by the subject.
* For women, positive urine pregnancy test before the first dose of vaccination, or any time during the study period.
* Temperature \>38.0°C (100.4°F) or symptoms of an acute self-limited illness such as an upper respiratory infection or gastroenteritis within three days prior to each dose of vaccine.
* Resident of COVID-19 infection in the same household.
* Known case of HIV, hepatitis B, or hepatitis C infection.
* Receipt of any licensed/experimental vaccine within four weeks before enrolment in this study.
* Receipt of immunoglobulin or other blood products within the three months before vaccination in this study.
* Immunosuppression as a result of an underlying illness or treatment with immunosuppressive or cytotoxic drugs, or use of anticancer chemotherapy or radiation therapy within the preceding 36 months.
* Immunoglobulins, anti-cytokine antibodies, and blood products within 6 months prior to study vaccination, during, and 21 days following the last dose of vaccination.
* Pregnancy, lactation, or willingness/intention to become pregnant during the first 6 months after enrolment.
* Severe and/or uncontrolled cardiovascular disease, respiratory disease, gastrointestinal disease, liver disease, renal disease, an endocrine disorder, and neurological illness (mild/moderate well-controlled comorbidities are allowed)


* Pregnancy.
* History of virologically (RT-PCR) confirmed SARS-CoV-2 infection
* Anaphylactic reaction following administration of the investigational vaccine.
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Indian Council of Medical Research

OTHER_GOV

Sponsor Role collaborator

Iqvia Pty Ltd

INDUSTRY

Sponsor Role collaborator

Bharat Biotech International Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Dr Chadramani Singh

Role: PRINCIPAL_INVESTIGATOR

All India Institute of Medical Sciences

Dr Sanjay Kumar Rai

Role: PRINCIPAL_INVESTIGATOR

All India Institute of Medical Sciences Delhi

Dr Azhar Ali Khan

Role: PRINCIPAL_INVESTIGATOR

Baba Raghav Das Medical Gorakhpur

DrAnil Kumar Pandey

Role: PRINCIPAL_INVESTIGATOR

ESIC Medical College and Hospital Faridabad

Dr Simmi Dube

Role: PRINCIPAL_INVESTIGATOR

Gandhi Medical College, Bhopal

Dr Anjan Jyoti Talukdar

Role: PRINCIPAL_INVESTIGATOR

Gauhati Medical College & Hospital Assam

Dr Priti Meshram

Role: PRINCIPAL_INVESTIGATOR

Grant Government Medical College and Sir J.J. Group of Hospitals Mumbai

Dr Laxmi S Kumari

Role: PRINCIPAL_INVESTIGATOR

Guntur Medical College ,Guntur

Dr Shiva Narang

Role: PRINCIPAL_INVESTIGATOR

Guru Teg Bahadur Hospital

Dr E Venkat Rao

Role: PRINCIPAL_INVESTIGATOR

Institute of Medical Sciences and SUM Hospital Odisha

Dr P Venugopal

Role: PRINCIPAL_INVESTIGATOR

King George Hospital Visakhapatnam

Dr. N.T. Awad

Role: PRINCIPAL_INVESTIGATOR

Lokamanya tilak Municipal Medical College and General hospital Mumbai

Dr Pajanivel Ranganadin

Role: PRINCIPAL_INVESTIGATOR

Mahatma Gandhi Medical College& Research Institute Pondicherry

Dr Prabhakar Reddy

Role: PRINCIPAL_INVESTIGATOR

Nizam's Institute of Medical Sciences Hyderabad

Dr Raghavendra Gumashta

Role: PRINCIPAL_INVESTIGATOR

Peoples university Bhopal

Dr Tapan Kumar Saikia

Role: PRINCIPAL_INVESTIGATOR

Prince Aly Khan Hospital Mumbai

Dr Savita Verma

Role: PRINCIPAL_INVESTIGATOR

Pt BO Sharma,PGIMS/UHS. Rohtak, Haryana

Dr Manish Multani

Role: PRINCIPAL_INVESTIGATOR

Rahate Surgical Hospital ,Nagpur

Dr Sagar Vivek Redkar

Role: PRINCIPAL_INVESTIGATOR

Redkar Hospital and Research Centre Goa

Dr Meghana Murthy

Role: PRINCIPAL_INVESTIGATOR

Vagus Super speciality hospital,Bangalore

Dr Akshata

Role: PRINCIPAL_INVESTIGATOR

Vydehi Institute of Medical Sciences and Research Centre,Bangalore

Dr T S Selvavinayagam

Role: PRINCIPAL_INVESTIGATOR

Directorate of Public Health and Preventive Medicine,Chennai

Dr Suman Kanungo

Role: PRINCIPAL_INVESTIGATOR

ICMR-National Institute of Cholera and Enteric Diseases,West Bengal

Dr Mohammad Shameem

Role: PRINCIPAL_INVESTIGATOR

Aligarh Muslim University,Uttar Pradesh

Dr Parul Bhatt

Role: PRINCIPAL_INVESTIGATOR

Gmers Medical College and Civil Hospital,Ahmedabad

Locations

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Pt BD SHARMA,PGIMS/UHS

Rohtak, Haryana, India

Site Status

Countries

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India

References

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Ella R, Reddy S, Blackwelder W, Potdar V, Yadav P, Sarangi V, Aileni VK, Kanungo S, Rai S, Reddy P, Verma S, Singh C, Redkar S, Mohapatra S, Pandey A, Ranganadin P, Gumashta R, Multani M, Mohammad S, Bhatt P, Kumari L, Sapkal G, Gupta N, Abraham P, Panda S, Prasad S, Bhargava B, Ella K, Vadrevu KM; COVAXIN Study Group. Efficacy, safety, and lot-to-lot immunogenicity of an inactivated SARS-CoV-2 vaccine (BBV152): interim results of a randomised, double-blind, controlled, phase 3 trial. Lancet. 2021 Dec 11;398(10317):2173-2184. doi: 10.1016/S0140-6736(21)02000-6. Epub 2021 Nov 11.

Reference Type DERIVED
PMID: 34774196 (View on PubMed)

Other Identifiers

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BBIL/BBV152-C/2020

Identifier Type: OTHER

Identifier Source: secondary_id

BBIL/BBV152-C/2020

Identifier Type: -

Identifier Source: org_study_id

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