RECRUITING

A Study to Evaluate VXA-CoV2-3.3 COVID-19 Vaccine Against Currently Approved/Authorized mRNA COVID-19 Injectable Booster Vaccine in Adults Previously Immunized Against COVID-19 Infection

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The primary objective of the study is to determine the relative efficacy of the investigational oral severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) vaccine tablet VXA-CoV2-3.3 compared to a currently recommended vaccine for the prevention of symptomatic Coronavirus Disease 2019 (COVID-19). In order to represent a more recently circulating SARS-CoV-2 variant, the main study endpoints will now evaluate the VXA-CoV2-3.3 (KP.2 strain) vaccine, and not the VXA-CoV2-3.1 (XBB.1.5 strain) vaccine.

Official Title

A Phase 2b, Double-Blind, Multi-Center, Randomized, Comparator-Controlled Trial to Determine the Relative Efficacy, Safety, and Immunogenicity of the Investigational Oral SARS-CoV-2 Vaccine Tablet Against Currently Approved/Authorized mRNA COVID-19 Injectable Booster Vaccine in Adults Previously Immunized Against COVID-19 Infection

Quick Facts

Study Start:2024-10-08
Study Completion:2026-11
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT06672055

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:No
Standard Ages:ADULT, OLDER_ADULT
Inclusion CriteriaExclusion Criteria
  1. 1. Adults 18 years of age and above, at time of screening.
  2. 2. Completed primary approved/authorized COVID-19 vaccination series with ≥ 2 mRNA vaccine doses.
  3. 3. Last COVID-19 vaccine received ≥6 months prior to study vaccination.
  4. 4. Male and female participants of childbearing potential must agree to consistently use a highly effective method of contraception from at least 30 days prior to enrollment and through 3 months after the study vaccination.
  5. 5. Male participants must refrain from sperm donation from the day of study vaccination through the end of the study. Female participants must refrain from egg donation at least 30 days prior to study vaccination through the end of the study.
  6. 6. Is medically stable, as determined by the site investigator (based on review of health status, vital signs, medical history, and physical examination) with screening lab values within normal limits or abnormalities assessed as not clinically significant. Screening platelet count must be \>140,000/μL.
  7. 7. Agree to not participate in any other SARS-CoV-2 infection prevention trial (vaccine, drug, biologic, PrEP) during participation in the study.
  8. 8. Willing and able to provide informed consent prior to initiation of study procedures.
  9. 9. Available for all study visits, willing to participate in all study procedures, and not planning to relocate from the area for the duration of the study.
  10. 10. Negative rapid molecular Covid test at the screening visit and on Day 1 prior to vaccine dosing.
  1. 1. Participant has an acute illness as defined by any of the following (note: assessment may be repeated once during screening period) as determined by the site investigator, within 72 hours prior to vaccination as follows:
  2. 1. An acute illness that is nearly resolved, with only minor residual symptoms remaining, is allowable if, in the opinion of the site investigator, the residual symptoms will not interfere with the ability of study staff to assess safety parameters as required by the protocol.
  3. 2. Presence of a fever ≥ 38.0°C (100.4°F) measured orally at baseline, on Day 1 prior to vaccination.
  4. 3. Receipt of antipyretic/analgesic medications within 24 hours prior to vaccine administration.
  5. 2. Participant has had a positive COVID test within 90 days prior to screening.
  6. 3. Current or planned participation in any other interventional clinical trial.
  7. 4. Participation in research involving any investigational product within 45 days prior to study vaccination.
  8. 5. Receipt of any approved or authorized products intended to prevent SARS-CoV2 infection within 6 months prior to study vaccination.
  9. 6. Receipt or donation of blood products or immunoglobulins within 60 days prior to enrollment or planned administration during the study.
  10. 7. Received influenza vaccination within 14 days prior to study vaccination, or any other vaccine within 30 days prior to study vaccination.
  11. 8. Any autoimmune or immunodeficiency disease/condition (including and not limited to untreated or advanced HIV infection with CD4 counts \<200 cells/mm\^3, history of AIDS defining illness without immune reconstitution, or clinical manifestations of symptomatic HIV, severe combined immunodeficiency (SCID), hypogammaglobulinemia, asplenia or functional asplenia).
  12. 9. Unstable medical or psychiatric illness (acute or chronic illness) requiring significant medical monitoring and intervention during the 90 days prior to enrollment. Note: diabetes mellitus (Types 1 \& 2) are not excluded if assessed by the principal investigator (PI) as well-controlled.
  13. 10. Administration of immunosuppressants, systemic glucocorticoids, or other immune-modifying drugs within the following timeframes:
  14. 1. B-cell therapies within the 6 months prior to first study vaccination
  15. 2. Prednisone, ≥20 mg for more than 2 weeks, within the 30 days prior to study vaccination
  16. 3. Other medications in this category, including but not limited to high-dose inhaled corticosteroids (\>800 mcg/day of beclomethasone dipropionate or equivalent); antimetabolites; transplant immunosuppressive agents; alkylating agents; cell-depleting agents; or cancer chemotherapeutics, within the 90 days prior to study vaccination.
  17. 4. Any medication for any period of time that, in the opinion of the site investigator, could impede immune response to vaccination.
  18. 5. Use of any dose montelukast OR inhaled, intranasal, intra-articular, or systemic corticosteroids within 2 weeks prior to study vaccination.
  19. 6. Planned use of any of the above medications during the study.
  20. 7. Concomitant allergen immunotherapy (AIT) will be allowed only if the participant is stable in the maintenance phase of AIT. Maintenance AIT should not be dosed for at least 7 days before and 7 days after study vaccine dosing, and the PI must document the treating allergist's approval.
  21. 11. Known contraindication to IM injection or blood draws (e.g. bleeding diathesis, acquired coagulopathy, significant bleeding or bruising) or to oral route of administration (unable to swallow tablets).
  22. 12. Any known allergies to components contained in the investigational product or comparator or latex allergy (including polyethylene glycol \[PEG\] allergies) and/or history of serious reactions to vaccination such as anaphylaxis, respiratory problems, hives, or abdominal pain.
  23. 13. Women who are pregnant (pregnancy tests will be performed at screening and prior to dosing), breastfeeding, or who plan to become pregnant during the study.
  24. 14. History of irritable bowel disease or other inflammatory digestive or gastrointestinal condition that could affect the distribution/safety evaluation of an orally administered vaccine targeting the mucosa of the small intestine. Such conditions may include but are not limited to:
  25. 1. Any history of:
  26. * GI malignancy
  27. * malabsorption
  28. * pancreatobiliary disorders
  29. * inflammatory bowel disease
  30. * irritable bowel disease
  31. * hiatal hernia
  32. * surgical resection
  33. 2. History of diagnosis or treatment in past 5 years of:
  34. * esophageal or gastric motility disorder
  35. * gastroesophageal reflux disorder
  36. * peptic ulcer
  37. * cholecystectomy.
  38. 15. Use of antibiotics, proton pump inhibitors, H2 blockers, or antacids within 7 days prior to study drug administration or planned use from dosing through Day 31.
  39. 16. Use of drugs known to affect gastrointestinal motility including glucagon-like peptide 1 (GLP-1) receptor agonists including tirzepatide (Mounjaro) and semaglutide (Wegovy, Ozempic) within 30 days prior to drug administration.
  40. 17. Daily use of nonsteroidal anti-inflammatory drugs within 7 days prior to study drug administration or planned use during the study.
  41. 18. Personal or familial history of hypercoagulable states to include personal past history of deep vein thrombosis (DVT).
  42. 19. Personal history of myocarditis or pericarditis.
  43. 20. Positive Hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody at the screening visit.
  44. 21. History of drug, alcohol, or chemical abuse within 1 year of screening.
  45. 22. Positive urine drug screen for drugs of abuse at screening (except for occasional marijuana use). Concurrent or planned use of marijuana from dosing through Day 31 is prohibited. Positive urine drug screen (UDS) at screening due to prescribed stimulants will be reviewed on a case by case basis.
  46. 23. Cancer, or treatment for cancer, within the past 3 years (excluding fully treated and resolved basal cell carcinoma or squamous cell carcinoma).
  47. 24. History of any form of angioedema.
  48. 25. History of GI bleeding including hematochezia (blood in stool) or melena (black stool) of unknown etiology or that has not been evaluated.
  49. 26. Any history or conditions that may lead to a higher risk of clotting events and/or thrombocytopenia, including:
  50. 1. Familial coagulopathy or personal history of bleeding disorder or thrombosis
  51. 2. History of heparin-related thrombotic events, and/or receiving heparin treatments
  52. 3. History of autoimmune or inflammatory disease
  53. 4. Presence of any of the following conditions known to increase the risk of thrombosis within 6 months prior to screening:
  54. * Recent surgery other than fully healed cesarean delivery or excision/ biopsy of cutaneous lesions
  55. * Immobility (confined to bed or wheelchair for 3 or more successive days)
  56. * Head trauma with loss of consciousness or documented brain injury
  57. * Receipt of anticoagulants for prophylaxis of thrombosis
  58. * Recent clinically significant infection including hospitalization for COVID-19 related illness.
  59. 27. Any other condition that, in the opinion of the investigator, would pose a health risk to the participant if enrolled or could interfere with evaluation of the investigational product or interpretation of study results.
  60. 28. Study team member or first-degree relative of any study team member (inclusive of sponsor and site personnel involved in the study).

Contacts and Locations

Study Contact

Maria Apkarian
CONTACT
650-392-3109
ClinicalTrials@Vaxart.com
Nick D'Amato
CONTACT
650-392-3109
ClinicalTrials@Vaxart.com

Principal Investigator

James Cummings, MD
STUDY_DIRECTOR
Vaxart, Inc.

Study Locations (Sites)

Pinnacle Research Group
Anniston, Alabama, 36207
United States
Core Clinical Trials - Central Alabama Research LLC
Birmingham, Alabama, 35209-8401
United States
Coastal Clinical Research
Mobile, Alabama, 36608
United States
Avacare - Lenzmeier Family Medicine
Glendale, Arizona, 85308
United States
Desert Clinical Research
Mesa, Arizona, 85213
United States
Velocity Clinical Research - MedPharmics - Phoenix
Phoenix, Arizona, 85020
United States
Foothills Research Center
Phoenix, Arizona, 85044
United States
Avacare (CCT) - Fiel Family & Sports Medicine
Tempe, Arizona, 85283
United States
Baptist Health Center for Clinical Research - Little Rock
Little Rock, Arkansas, 72205
United States
Elligo Health Research (BTC/ClinEdge) - Core Healthcare Group
Cerritos, California, 90703
United States
Velocity Clinical Research - Chula Vista (eStudySite - Chula Vista)
Chula Vista, California, 91911
United States
Avacare - Benchmark Research - SOCAL-Colton
Colton, California, 92324
United States
Altasciences Los Angeles (Formerly WCCT Global)
Cypress, California, 90630
United States
Ark Clinical Research - Fountain Valley, CA
Fountain Valley, California, 92708
United States
Velocity Clinical Research - San Diego (eStudySite - La Mesa)
La Mesa, California, 91942
United States
Ark Clinical Research - Long Beach, CA
Long Beach, California, 90815
United States
Velocity Clinical Research (National Research Institute) - Panorama City
Los Angeles, California, 90057
United States
Northern California Research
Sacramento, California, 95821
United States
Avacare - Benchmark Research - Sacramento
Sacramento, California, 95864
United States
Velocity Clinical Research - Gardena
Santa Ana, California, 92704
United States
Elite Research Network (ERN) - Legacy Clinical Trials
Colorado Springs, Colorado, 80909
United States
Tekton Research - Fort Collins
Fort Collins, Colorado, 80528
United States
Avacare - Critical Care, Pulmonary and Sleep Associates
Lakewood, Colorado, 80228
United States
Tekton Research - Colorado - Longmont
Longmont, Colorado, 80501
United States
Paradigm Clinical Research - Wheat Ridge
Wheat Ridge, Colorado, 80033
United States
Stamford Therapeutics Consortium
Stamford, Connecticut, 06905
United States
Chase Medical Research
Waterbury, Connecticut, 06708
United States
Velocity Clinical Research - Washington DC
Washington, District of Columbia, 20016
United States
AMR - Miami (Clinical Research of South Florida)
Coral Gables, Florida, 33134
United States
Universal Axon Clinical Research
Doral, Florida, 33166
United States
Velocity Clinical Research - New Smyrna Beach
Edgewater, Florida, 32132
United States
Fleming Island Center For Clinical Research
Fleming Island, Florida, 32003
United States
AMR - Fort Myers - Clinical Physiology Associates
Fort Myers, Florida, 33912
United States
Velocity Clinical Research - Hallandale Beach (MD Clinical)
Hallandale Beach, Florida, 33009
United States
ENCORE - Nature Coast Clinical Research Inverness
Inverness, Florida, 34452
United States
ENCORE - Westside Center for Clinical Research
Jacksonville, Florida, 32205
United States
Jacksonville Center for Clinical Research
Jacksonville, Florida, 32216
United States
Headlands Research - JEM Research - Lake Worth
Lake Worth, Florida, 33462
United States
Accel Research Sites - Lakeland
Lakeland, Florida, 33803
United States
Accel Research Sites (ARS) - St. Petersburg - Largo
Largo, Florida, 33777
United States
Accel Research Sites - Maitland
Maitland, Florida, 32751
United States
K2 Medical Research - Maitland
Maitland, Florida, 32751
United States
SRA Trials LLC - Miami Clinical Trials at Suncoast Research Associates
Miami, Florida, 33173
United States
Atlas Clinical Research - Suncoast Clinical Research - Pasco County
New Port Richey, Florida, 34652
United States
Biscayne Clinical Research
North Miami Beach, Florida, 33169
United States
K2 Medical Research - South Orlando
Orlando, Florida, 32806
United States
Boca Raton Clinical Research (BRCR) Global - Weston
Plantation, Florida, 33322
United States
ENCORE - St. Johns Center for Clinical Research
Saint Augustine, Florida, 32086
United States
IMA Clinical Research - St. Petersburg
Saint Petersburg, Florida, 33704
United States
hyperCORE - Centricity Research Columbus
Columbus, Georgia, 31904
United States
Javara Research - Privia Medical Group Georgia
Fayetteville, Georgia, 30214
United States
Privia Health - SouthCoast Health
Fayetteville, Georgia, 30214
United States
Avacare (CCT) - Lifeline Primary Care
Lilburn, Georgia, 30047
United States
hyperCORE - Centricity Research (IACT Health) - Rincon
Rincon, Georgia, 31326
United States
Velocity Clinical Research - Savannah
Savannah, Georgia, 31406
United States
Velocity Clinical Research - Boise (Meridian)
Meridian, Idaho, 83642
United States
IMA Clinical Research - Chicago
Chicago, Illinois, 60602
United States
Accellacare - Duly Health and Care
Lombard, Illinois, 60148
United States
Velocity Clinical Research - Valparaiso (Buynak Clinical Research)
Valparaiso, Indiana, 46383
United States
Accellacare - McFarland Clinic
Ames, Iowa, 50010
United States
Velocity (Meridian) Clinical Research - Sioux City
Sioux City, Iowa, 51106
United States
AMR - El Dorado - Heartland Research Associates
El Dorado, Kansas, 67042
United States
Johnson County Clin-Trials
Lenexa, Kansas, 66219
United States
AMR - Newton (Heartland Research Associates)
Newton, Kansas, 67114
United States
AMR - Wichita West - Heartland Research Associates
Wichita, Kansas, 67205
United States
AMR - Wichita East - Heartland Research Associates
Wichita, Kansas, 67207
United States
AMR - Lexington (Central Kentucky Research Associates)
Lexington, Kentucky, 40509
United States
Velocity (Meridian) Clinical Research - Baton Rouge
Baton Rouge, Louisiana, 70809
United States
Avacare - Benchmark Research - New Orleans-North Shore
Covington, Louisiana, 70433
United States
Velocity Clinical Research - MedPharmics - Covington
Covington, Louisiana, 70433
United States
Boca Raton Clinical Research (BRCR) Global USA - New Orleans
Gretna, Louisiana, 70053
United States
Velocity Clinical Research - MedPharmics - Lafayette
Lafayette, Louisiana, 70508
United States
Avacare - Benchmark Research - Metairie
Metairie, Louisiana, 70006
United States
AMR - New Orleans - Center for Clinical Research
New Orleans, Louisiana, 70119
United States
Javara Research - Privia Medical Group Mid-Atlantic - Annapolis
Annapolis, Maryland, 21401
United States
Pharmaron
Baltimore, Maryland, 21201
United States
Avacare (CCT) - Advanced Primary and Geriatric Care
Rockville, Maryland, 20850
United States
Velocity (Meridian) Clinical Research - Rockville
Rockville, Maryland, 20854
United States
Javara Research - Mankato Clinic
Mankato, Minnesota, 56001
United States
Velocity Clinical Research - MedPharmics - Gulfport
Gulfport, Mississippi, 39503
United States
Avacare (CCT) - Clay Platte Family Medicine Clinic
Kansas City, Missouri, 64151
United States
Avacare (CCT) - Skyline Medical Center
Elkhorn, Nebraska, 68022
United States
Velocity (Meridian) Clinical Research - Grand Island
Grand Island, Nebraska, 68803
United States
Be Well Clinical Studies - Nebraska
Lincoln, Nebraska, 68516
United States
Velocity (Meridian) Clinical Research - Omaha
Omaha, Nebraska, 68134
United States
hyperCORE - ActivMed Practices and Research - Portsmouth
Portsmouth, New Hampshire, 03801
United States
DM Clinical Research - Jersey City
Jersey City, New Jersey, 07306
United States
Velocity Clinical Research - Alburquerque
Albuquerque, New Mexico, 87107
United States
AXCES Research & Health - Santa Fe
Santa Fe, New Mexico, 87505
United States
IMA Clinical Research - Albany, Suite 202
Albany, New York, 12205
United States
Velocity Clinical Research - Syracuse
East Syracuse, New York, 13057
United States
IMA Clinical Research - Manhattan
New York, New York, 10036
United States
Atlas Clinical Research - Rochester Clinical Research
Rochester, New York, 14609
United States
Cary Medical Group
Cary, North Carolina, 27518
United States
Velocity Clinical Research - Durham
Durham, North Carolina, 27701
United States
Accellacare - Hickory
Hickory, North Carolina, 28601
United States
Accellacare - Raleigh
Raleigh, North Carolina, 27609
United States
Accellacare - Rocky Mount
Rocky Mount, North Carolina, 27804
United States
Accellacare - Salisbury
Salisbury, North Carolina, 28144
United States
Accellacare - Piedmont Healthcare
Statesville, North Carolina, 28625
United States
Accellacare - Tradd Court
Wilmington, North Carolina, 28401
United States
Accellacare - Winston-Salem
Winston-Salem, North Carolina, 27103
United States
Atrium Health Wake Forest Baptist - Comprehensive Cancer Center
Winston-Salem, North Carolina, 27157
United States
Velocity Clinical Research - Cleveland (Rapid Medical Research)
Beachwood, Ohio, 44122
United States
CTI Clinical Research Center
Cincinnati, Ohio, 45212
United States
Velocity Clinical Research - Cincinnati (New Horizons Clinical Research - Blue Ash)
Cincinnati, Ohio, 45242
United States
Tekton Research - Oklahoma - Magnolia Court
Moore, Oklahoma, 73160
United States
Tekton Research - Delaware Pointe
Tulsa, Oklahoma, 74137
United States
Tekton Research - Oklahoma - Primary Health Partners
Yukon, Oklahoma, 73099
United States
Velocity Clinical Research - Grants Pass
Grants Pass, Oregon, 97527
United States
Avacare (CCT) - Hatboro Medical Associates
Hatboro, Pennsylvania, 19040
United States
Atlas Clinical Research - Suburban Research Associates - Media Office
Media, Pennsylvania, 19063
United States
Velocity Clinical Research - Providence (East Greenwich)
East Greenwich, Rhode Island, 02818
United States
Velocity Clinical Research - Anderson
Anderson, South Carolina, 29621
United States
Velocity Clinical Research - Charleston
Charleston, South Carolina, 29414
United States
Velocity Clinical Research - Columbia (VitaLink)
Columbia, South Carolina, 29204
United States
Accellacare - Charleston
Mount Pleasant, South Carolina, 29464
United States
Trial Management Associates - Myrtle Beach
Myrtle Beach, South Carolina, 29572
United States
hyperCORE International - Coastal Carolina Research Center
North Charleston, South Carolina, 29405
United States
Velocity Clinical Research - Union (Vitalink)
Union, South Carolina, 29379
United States
Accellacare - PMG Research of Bristol
Bristol, Tennessee, 37620
United States
Alliance for Multispecialty Research (AMR) - Corporate
Knoxville, Tennessee, 37909
United States
Accellacare of Knoxville
Knoxville, Tennessee, 37912
United States
Velocity Clinical Research - Abilene
Abilene, Texas, 79606
United States
IMA Clinical Research - Austin
Austin, Texas, 78745
United States
Tekton Research - Austin
Austin, Texas, 78745
United States
Orion Clinical Research
Austin, Texas, 78759
United States
Velocity Clinical Research - Austin
Austin, Texas, 78759
United States
Tekton Research - Beaumont
Beaumont, Texas, 77706
United States
PanAmerican Clinical Research - Brownsville, Levee Street
Brownsville, Texas, 78520
United States
Cedar Health Research - Arlington/Euless
Euless, Texas, 76040
United States
EmVenio Research - Fort Worth, TX
Fort Worth, Texas, 76134
United States
Avacare - Benchmark Research Fort Worth
Fort Worth, Texas, 76135
United States
DM Clinical Research - CyFair Clinical Research Center
Houston, Texas, 77065
United States
Tekton Research - Fredericksburg Road
San Antonio, Texas, 78229
United States
DM Clinical Research - Tomball - Multiple Specialties
Tomball, Texas, 77375
United States
Velocity Clinical Research - Waco (formerly: Impact Research Institute)
Waco, Texas, 76710
United States
Avacare (CCT) - Ogden Clinic - Grand View
Roy, Utah, 84067
United States
Avacare (CCT) - Olympus Family Medicine
Salt Lake City, Utah, 84117
United States
South Ogden Family Medicine
South Ogden, Utah, 84405
United States
Health Research of Hampton Roads
Newport News, Virginia, 23606
United States
AMR - Norfolk (Clinical Research Associates of Tidewater)
Norfolk, Virginia, 23502
United States
Centricity Research (IACT Health) - Suffolk Primary Care
Suffolk, Virginia, 23435
United States
Velocity Clinical Research - Medford
Spokane, Washington, 99204
United States
Velocity Clinical Research - Spokane
Spokane, Washington, 99204
United States

Collaborators and Investigators

Sponsor: Vaxart

  • James Cummings, MD, STUDY_DIRECTOR, Vaxart, Inc.

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2024-10-08
Study Completion Date2026-11

Study Record Updates

Study Start Date2024-10-08
Study Completion Date2026-11

Terms related to this study

Additional Relevant MeSH Terms

  • SARS-CoV2
  • COVID-19