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A Study Looking at the Effectiveness, Immune Response, and Safety of a COVID-19 Vaccine in Adults in the United Kingdom

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04583995
Recruitment Status : Recruiting
First Posted : October 12, 2020
Last Update Posted : October 14, 2020
Sponsor:
Information provided by (Responsible Party):
Novavax

Brief Summary:

This is a study to evaluate the effectiveness, immune response, and safety of a coronavirus disease 2019 (COVID-19) vaccine called SARS-CoV-2 rS with Matrix-M1 adjuvant in adults aged 18-84 years in the United Kingdom. A vaccine causes the body to have an immune response that may help prevent the infection or reduce the severity of symptoms. An adjuvant is something that can make a vaccine work better. This study will look at the protective effect, body's immune response, and safety of SARS-CoV-2 rS with Matrix-M1 adjuvant in the study population. Participants in the study will randomly be assigned to receive SARS-CoV-2 rS with Matrix-M1 adjuvant or placebo. Each participant in the study will receive a total of 2 intramuscular injections over the course of the study. Approximately 9,000 participants will take part in the study. The first 400 participants who meet additional criteria will receive a flu vaccine, in addition to the SARS-CoV-2 rS vaccine or placebo, as part of a sub-study.

An effort will be made to enroll a target of at least 25% of participants who are ≥ 65 years of age, as well as prioritizing other groups that are most affected by COVID-19, including racial and ethnic minorities.


Condition or disease Intervention/treatment Phase
SARS-CoV-2 Infection COVID-19 Biological: SARS-CoV-2 rS/Matrix M1-Adjuvant Other: Placebo Biological: Licensed seasonal influenza vaccine Phase 3

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 9000 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: A Phase 3, Randomised, Observer-Blinded, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of a SARS-CoV-2 Recombinant Spike Protein Nanoparticle Vaccine (SARS-CoV-2 rS) With Matrix-M1™ Adjuvant in Adult Participants 18-84 Years of Age in the United Kingdom
Actual Study Start Date : September 28, 2020
Estimated Primary Completion Date : January 2021
Estimated Study Completion Date : January 14, 2022

Arm Intervention/treatment
Experimental: Cohort 1: SARS-CoV-2 rS/Matrix-M1 Adjuvant
2 doses of 5 µg SARS-CoV-2 rS + 50 µg Matrix-M1 adjuvant (co-formulated), 1 dose each on Days 0 and 21.
Biological: SARS-CoV-2 rS/Matrix M1-Adjuvant
Alternating intramuscular (deltoid) injections of SARS-CoV-2 rS co-formulated with Matrix-M1 adjuvant (0.5 mL) on Days 0 and 21.
Other Name: NVX-CoV2373

Placebo Comparator: Cohort 1: Placebo
2 doses of Placebo (Saline), 1 dose each on Days 0 and 21.
Other: Placebo
Alternating intramuscular (deltoid) injections of placebo (0.5 mL) on Days 0 and 21.
Other Name: Sodium chloride 0.9% (BP, sterile)

Experimental: Cohort 2: SARS-CoV-2 rS/Matrix-M1 Adjuvant Plus Licensed Seasonal Flu Vaccine
2 doses of 5 µg SARS-CoV-2 rS + 50 µg Matrix-M1 adjuvant (co-formulated), 1 dose each on Days 0 and 21. 1 dose of licensed seasonal flu vaccine on Day 0.
Biological: SARS-CoV-2 rS/Matrix M1-Adjuvant
Alternating intramuscular (deltoid) injections of SARS-CoV-2 rS co-formulated with Matrix-M1 adjuvant (0.5 mL) on Days 0 and 21.
Other Name: NVX-CoV2373

Biological: Licensed seasonal influenza vaccine
Single intramuscular injection of licensed seasonal flu vaccine, administered ideally in opposite deltoid to SARS-CoV-2 rS with Matrix-M1 adjuvant or placebo injection on Day 0.

Placebo Comparator: Cohort 2: Placebo Plus Licensed Seasonal Flu Vaccine
2 doses of Placebo (Saline), 1 dose each on Days 0 and 21. 1 dose of licensed seasonal flu vaccine on Day 0.
Other: Placebo
Alternating intramuscular (deltoid) injections of placebo (0.5 mL) on Days 0 and 21.
Other Name: Sodium chloride 0.9% (BP, sterile)

Biological: Licensed seasonal influenza vaccine
Single intramuscular injection of licensed seasonal flu vaccine, administered ideally in opposite deltoid to SARS-CoV-2 rS with Matrix-M1 adjuvant or placebo injection on Day 0.




Primary Outcome Measures :
  1. Participants with Symptomatic COVID-19 [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, testing serologically negative for SARS-CoV-2 at baseline, with first occurrence of positive (+) polymerase chain reaction (PCR)-confirmed SARS-CoV-2 illness with symptomatic COVID-19 with onset from Day 28 (7 days after second vaccination dose) through the length of the study.

  2. Participants with Symptomatic Moderate or Severe COVID-19 [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, testing serologically negative for SARS-CoV-2 at baseline with first occurrence of (+) PCR-confirmed, SARS-CoV-2 illness with symptomatic moderate or severe COVID-19 with onset from Day 28 (7 days after second vaccination dose) through the length of the study.


Secondary Outcome Measures :
  1. Participants with Symptomatic COVID-19 [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, regardless of serostatus at baseline, with first occurrence of (+) PCR-confirmed, SARS-CoV-2 illness with symptomatic COVID-19 assessed from Day 28 (7 days after second vaccination dose) through the length of the study.

  2. Participants with Asymptomatic or Symptomatic COVID-19 [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, regardless of serostatus at baseline, with first occurrence of (+) PCR-confirmed, or serologically confirmed, SARS-CoV-2 illness with asymptomatic or symptomatic COVID-19 with onset from Day 28 (7 days after second vaccination dose) through the length of the study.

  3. Participants with COVID-19 requiring Hospitalization, Intensive Care Unit (ICU), or Mechanical Ventilation [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, regardless of serostatus at baseline, with first occurrence of (+) PCR-confirmed, SARS-CoV-2 illness with COVID-19 with onset from Day 28 (7 days after second vaccination dose) through the length of the study.

  4. Participants with Symptomatic Mild COVID-19 [ Time Frame: From Day 28 to Day 386 ]
    Number of participants, regardless of serostatus at baseline, with first occurrence of (+) PCR-confirmed, SARS-CoV-2 illness with symptomatic mild COVID-19 (with no progression to moderate or severe COVID-19 during the course of the COVID-19 episode) with onset from Day 28 (7 days after second vaccination dose) through the length of the study.

  5. Serum IgG Antibody Levels at Multiple Time Points Expressed as GMEUs [ Time Frame: Day 0 to Day 35 ]
    Serum IgG antibody levels specific for the SARS-CoV-2 rS protein antigen(s) as detected by ELISA expressed as GMEUs (Geometric mean ELISA unit) at Day 0 (baseline), Day 21 (21 days after first study vaccination), and Day 35 (14 days after second study vaccination).

  6. Participants with SAEs and MAAEs [ Time Frame: 386 days ]
    Numbers and percentages (with 95% CI) of participants with SAEs (Serious Adverse Events) and MAAEs (Medically Attended Adverse Events) through End of Study by MedDRA classification, severity score and relatedness.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   18 Years to 84 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Able and willing to comply with all study requirements.
  • Willing to allow investigators to discuss medical history with their General Practitioner and access all relevant medical records.
  • Willing and able to give informed consent.
  • Women of child-bearing potential must agree not to have sexual intercourse with men, or must consistently use an agreed method of contraception, from at least 28 days prior to enrolment in the study, through 3 months after the last vaccination.
  • Seasonal Flu Vaccine Co-Administration Sub-Study only: Participant should not have received a current season flu vaccine, should have no reason why the specific sub-study flu vaccine cannot be administered, and should not have any prior history of allergy or severe reaction to seasonal flu vaccines.

Exclusion Criteria:

  • Participation in other COVID-19 vaccine or preventative drug trials for the duration of the study.
  • Participation in any blood tests for the duration of the study where participants are informed of their levels of COVID-19 antibodies or antigens.
  • Participation in any trial involving an investigational drug, biologic or device within 45 days prior to the first study vaccination.
  • History of laboratory-confirmed COVID-19 infection any time prior to first study vaccination.
  • Receipt of any immunoglobulins and/or any blood products within 3 months prior to planned administration of study vaccine.
  • Any confirmed or suspected immunosuppressive or immunodeficient state. Chronic administration (defined as more than 14 continuous days) of immunosuppressant medication within the past 3 months, except topical steroids or short-term oral steroids (course lasting ≤ 14 days). Note: An immunosuppressant dose of glucocorticoid is defined as a systemic dose ≥ 10 mg of prednisone per day or equivalent. The use of topical, inhaled, and nasal glucocorticoids will be permitted if other chronic disease conditions do not exclude a participant from the study.
  • History of allergic disease or reactions likely to be made worse by any component of the study vaccines.
  • History of anaphylaxis to any prior vaccine.
  • Pregnancy, breast-feeding or willingness/intention to become pregnant during the study.
  • Current diagnosis of or treatment for cancer (except basal cell carcinoma of the skin and cervical carcinoma in situ.
  • Bleeding disorder, or prior history of significant bleeding or bruising following intramuscular injections or venepuncture (e.g. to draw blood for tests).
  • Continuous use of anticoagulants or anti-platelet agents. Note: The preventative use of ≤ 325 mg of aspirin per day is permitted.
  • Suspected or known current alcohol or drug dependency.
  • Study team member or first-degree relative of any study team member (inclusive of sponsor, contract research organization (CRO), and site personnel involved in the study).
  • Participants having any current workup of undiagnosed illness within 8 weeks prior to start of study which could lead to new condition or diagnosis.
  • Received any live vaccine within 4 weeks or any vaccine (excluding flu) within 2 weeks prior to first study vaccination; or any licensed flu vaccine within 1 week prior to first study vaccination. Also, plans to receive any vaccine from these time periods until 28 days after the second study vaccination (with exception of participants in the Seasonal Flu Vaccine Co-Administration Sub-Study). Note: For participants who do not receive a flu vaccination as part of the Seasonal Flu Vaccine Co-Administration Sub-Study, a licensed seasonal flu vaccine may be received as soon as 7 days after second study vaccination.
  • Have clinically significant chronic cardiovascular, endocrine (hormones), gastrointestinal, hepatic (liver), renal (kidney), neurological, respiratory, psychiatric or other medical disorders not excluded by other exclusion criteria, that are assessed by the investigator as being clinically unstable within 4 weeks prior to the start of the study.
  • History of chronic neurological disorders that have required prior specialist medical review for diagnosis and management (e.g. multiple sclerosis, dementia, transient ischemic attacks, Parkinson's disease, neuropathy, epilepsy), or a history of stroke or previous neurological disorder within 12 months with residual symptoms. Participants with a history of migraine or chronic headaches or nerve root compression that have been stable on treatment for the last 4 weeks are not excluded.
  • Any autoimmune or immunodeficiency disease/condition. Note: Stable endocrine disorders confirmed as autoimmune (e.g. thyroid, pancreatic) are allowed.

Other protocol-defined inclusion/exclusion criteria may apply.


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04583995


Locations
Show Show 18 study locations
Sponsors and Collaborators
Novavax
Investigators
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Study Director: Seth Toback, MD Novavax, Inc.
Principal Investigator: Paul T Heath, MB BS FRACP FRCPCH Vaccine Institute, St Georges, University of London
Additional Information:
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Responsible Party: Novavax
ClinicalTrials.gov Identifier: NCT04583995    
Other Study ID Numbers: 2019nCoV-302
First Posted: October 12, 2020    Key Record Dates
Last Update Posted: October 14, 2020
Last Verified: October 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
Keywords provided by Novavax:
Coronavirus