Last updated: 01/31/2025 12:10:15
Safety and Immunogenicity Study of a Booster Dose of the Investigational CV0501 mRNA COVID-19 Vaccine in Adults at Least 18 Years Old
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Completed
Completed
Trial overview
Official title: A Phase 1, Open-label, Safety and Immunogenicity Study of a Booster Dose of the Investigational CV0501 mRNA COVID-19 Vaccine in Adults at Least 18 Years Old
Trial description: Prevention of COVID-19 caused by SARS-CoV-2.
Primary purpose:
Prevention
Trial design:
Sequential Assignment
Masking:
None (Open Label)
Allocation:
Non-randomized
Primary outcomes:
Number of Participants With Solicited Local Adverse Events (AE) During 7 Days After Vaccination
Timeframe: From Day 1 to Day 7 (including Day 7)
Number of Participants With Solicited Systemic AE During 7 Days After Vaccination
Timeframe: From Day 1 to Day 7 (including Day 7)
Number of Participants With Unsolicited AEs for 28 Days After Study Vaccination
Timeframe: From Day 1 to day 28 (including day 28)
Number of Participants With Medically Attended Adverse Events (MAAEs) From Study Vaccination Through the End of the Study
Timeframe: From Day 1 up to Day 180 (including Day 180)
Number of Participants With Adverse Events of Special Interest (AESIs) From Study Vaccination Through the End of the Study
Timeframe: From Day 1 up to Day 180 (including Day 180)
Number of Participants With Serious Adverse Events (SAEs) From Study Vaccination Through the End of the Study
Timeframe: From Day 1 up to Day 180 (including Day 180)
Number of participants with each abnormal clinical safety laboratory finding for 8 days after study vaccination
Timeframe: 8 days from vaccination at Day 1
Secondary outcomes:
Geometric Mean Titers (GMTs) of Neutralizing Antibody (Ab) Against Pseudovirus Bearing S Protein From SARS-CoV-2 WT, Omicron, and Delta Variants at Each Collection Timepoint
Timeframe: At Day 1, Day 15, Day 29, Day 91, and Day 181
Geometric Mean Increase (GMI) From Baseline of Neutralizing Ab Titers Against Pseudovirus Bearing S Protein From SARS-CoV-2 WT, Omicron, and Delta Variants at Each Collection Time Point
Timeframe: At Day 15, Day 29, Day 91, and Day 181
Percentage of participants with neutralizing seroresponse of serum SARS-CoV-2 WT, Omicron BA.1, BA.2 and BA.5 variants specific Ab at Day 29
Timeframe: At day 29 (28 days after the booster dose)
Interventions:
Biological/vaccine: CV0501 (3 μg)
Biological/vaccine: CV0501 (6 μg)
Biological/vaccine: CV0501 (12 μg)
Biological/vaccine: CV0501 (25 μg)
Biological/vaccine: CV0501 (50 μg)
Biological/vaccine: CV0501 (100 μg)
Biological/vaccine: CV0501 (200 μg)
Enrollment:
185
Observational study model:
Not applicable
Primary completion date:
2023-18-08
Time perspective:
Not applicable
Clinical publications:
Alves de Mesquita M, Baba E, Berrè S, Bloch M, Boutet P, Bradley P, et al. . "This document/information contains Curevac confidential information which cannot be used for any other purpose than for carrying out the collaboration activities. Curevac confidential information should not be shared with nor used by GSK employees not involved in the collaboration"_Safety and immunogenicity of a modified mRNA-lipid nanoparticle vaccine candidate against COVID-19: Results from a phase 1, dose-escalation study. Hum Vaccin Immunother.
PMID: 39422261
DOI: 10.1080/21645515.2024.2408863
Medical condition
COVID-19, SARS-CoV-2
Product
Not applicable
Collaborators
Not applicable
Study date(s)
August 2022 to August 2023
Type
Interventional
Phase
1
Participation criteria
Sex
Female & Male
Age
18+ years
Accepts healthy volunteers
Yes
- 1. Must provide documented informed consent prior to any study procedures being performed
- 2. Is capable of understanding and agrees to comply with planned study procedures and to be available for all study visits
- 1. Participant is female and has a positive pregnancy test result at screening.
- 2. Participant is female and is breastfeeding or will (re)start breastfeeding from the study vaccination to 3 months after vaccination.
Inclusion and exclusion criteria
Inclusion criteria:
- 1. Must provide documented informed consent prior to any study procedures being performed 2. Is capable of understanding and agrees to comply with planned study procedures and to be available for all study visits 3. Has received at least 2 doses of Comirnaty or Moderna COVID-19 Vaccine (Spikevax®\), with the last dose of vaccine received at least 6 months prior to screening 4. Negative for SARS-CoV-2 infection by RT-PCR test at screening 5. Is a male or nonpregnant female >= 18 years old 6. If the participant is a woman of childbearing potential, the participant agrees to use at least 1 highly effective form of contraception for at least 30 days prior to the study vaccination up to 3 months after study vaccination. 7. Agrees to refrain from blood or plasma donation from the first study vaccination through end of study. 8. Has a body mass index of 18 to 40 kg/m^2, inclusive, at screening. 9. Is healthy or medically stable as determined by investigator judgment based on medical history, clinical laboratory tests, vital sign measurements, and physical examination findings
Exclusion criteria:
- 1. Participant is female and has a positive pregnancy test result at screening. 2. Participant is female and is breastfeeding or will (re)start breastfeeding from the study vaccination to 3 months after vaccination. 3. Has an acute febrile illness with temperature >=38.0°C or >=100.4°F within 72 hours before study vaccination. Individuals with suspected COVID-19 symptoms should be excluded and referred for medical care. 4. Has a history of documented SARS-CoV-2 infection or COVID-19 within 6 months before screening. 5. Has a documented medical history of HIV, hepatitis B or hepatitis C infection prior to screening, or a positive test for these conditions at screening. 6. Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease (eg, malignancy) or immunosuppressive/cytotoxic therapy (eg, medications used during cancer chemotherapy, organ transplantation or to treat autoimmune disorders). Chronic use (more than 14 continuous days) of any medication that may be associated with changes in immune function including, but not limited to, systemic corticosteroids exceeding 10 mg/day of prednisone equivalent, allergy immunotherapy injections, immunoglobulin, interferon, immunomodulators, cytotoxic drugs, or other similar or toxic drugs within 6 months of the first study vaccination. Inclusion of persons who use low dose topical, ophthalmic, inhaled, or intranasal steroid preparations is permitted. 7. History of myocarditis, pericarditis, or idiopathic cardiomyopathy, or presence of any medical condition that increases risk of myocarditis or pericarditis, including cocaine abuse, cardiomyopathy, endomyocardial fibrosis, hypereosinophilic syndrome, hypersensitivity myocarditis, eosinophilic granulomatosis with polyangiitis, persistent myocardial viral infection (eg, due to enterovirus or adenovirus), and celiac disease. 8. Has a new onset, clinically significant, abnormal biochemistry or hematology finding (defined as >= Grade 1) at screening (adults with Grade 1 laboratory abnormalities that have been stable for at least 6 months before enrollment may be included in the study). 9. Individuals with a history of autoimmune disease or an active autoimmune disease requiring therapeutic intervention, including but not limited to: systemic or cutaneous lupus erythematosus, autoimmune arthritis/rheumatoid arthritis, Guillain- Barré syndrome, multiple sclerosis, Sjögren’s syndrome, idiopathic thrombocytopenia purpura, glomerulonephritis, autoimmune thyroiditis, giant cell arteritis (temporal arteritis), Takayasu arteritis, granulomatosis with polyangiitis, psoriasis, and insulin-dependent diabetes mellitus (Type 1). 10. Has an unstable chronic medical condition. This refers to a condition requiring a new medication or increase in dose of current medication(s) or a condition requiring hospitalization within 6 months prior to screening. 11. Has a history of hypersensitivity or severe allergic reaction, including anaphylaxis, generalized urticaria, angioedema, and other significant reactions, to vaccines or to any component of the investigational product. 12. Has received or plans to receive any licensed vaccine, within 4 weeks before or 4 weeks after study vaccination. Inactivated vaccines for influenza are permitted during the study if they are administered at least 14 days before or after study vaccination. 13. Has had known close contact with anyone who had a confirmed SARS-CoV-2 infection within 2 weeks before study vaccination. Rescreening of these participants permitted after quarantine period is complete. 14. Has participated or plans to participate in another investigational study involving any investigational product or device within 6 months or 5 half-lives, whichever is longer, before the study vaccination through end of study. 15. Has received or plans to receive immunoglobulins or any blood or blood products within 3 months before the first study vaccination through end of study. 16. Has a bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection. 17. Has a history of alcohol abuse or other recreational drug use (excluding cannabis) within 6 months before study vaccination. 18. Has any abnormal skin condition or permanent body art (eg, tattoo) that would interfere with the ability to observe local reactions at the injection site. 19. Has a medical disease or psychiatric condition that, in the opinion of the investigator, precludes study participation because it would place the individual at an unacceptable risk of injury, render the individual unable to meet the requirements of the protocol or interfere with the individual's successful completion of the trial. 20. Participant is an employee or family member of the investigator or study site personnel.
Trial location(s)
Location
GSK Investigational Site
Metairie, LA, United States, 70006-5322
Status
Study Complete
Study documents
Protocol
Available language(s): English
Statistical analysis plan
Available language(s): English
If you wish to request for full study report, please contact - [email protected]
Results overview
Results posted on ClinicalTrials.gov
Recruitment status
Completed
Actual primary completion date
2023-18-08
Actual study completion date
2023-18-08
Plain language summaries
Summary of results in plain language
Available language(s): English, Hiligaynon, Spanish (United States), Tagalog
To view plain language summaries on trialsummaries.com click here.
Additional information about the trial
Additional information
Not applicable
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