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A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19

Primary Purpose

Coronavirus, Covid19, SARS-CoV-2

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
CVnCoV 6 μg
CVnCoV 12 μg
Hepatitis A vaccine
Pneumococcal vaccine
CVnCoV 12μg
Sponsored by
CureVac
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Coronavirus focused on measuring Vaccine, SARS, COVID, Safety, Reactogenicity, Immunogenicity

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Healthy male and female participants ≥18 years of age. A healthy participant is defined as an individual who is in good general health, according to the Investigator's assessment. Chronic health conditions are acceptable if the condition is considered well controlled with treatment according to the discretion of the Investigator.
  • Expected to be compliant with protocol procedures and available for clinical follow-up through the last planned visit.
  • Participants are able to understand and willing to provide informed consent.
  • Physical examination without clinically significant findings according to the Investigator's assessment.
  • Body mass index (BMI) ≥18.0 and ≤32.0 kg/m^2.
  • Female participants of childbearing potential: at the time of enrollment, negative human chorionic gonadotropin (hCG) pregnancy test (serum) for female participants presumed to be of childbearing potential on the day of enrollment. On Day 1 (pre-vaccination): negative urine pregnancy test (required if serum pregnancy test was performed more than 3 days before).
  • Female participants of childbearing potential must use highly effective methods of birth control from 2 weeks before the first administration of the trial vaccine until 3 months following the last administration. The following methods of birth control are considered highly effective when used consistently and correctly:

    • Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal or transdermal);
    • Progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable or implantable);
    • Intrauterine devices;
    • Intrauterine hormone-releasing systems;
    • Bilateral tubal occlusion;
    • Vasectomized partner;
    • Sexual abstinence (periodic abstinence [e.g., calendar, ovulation, symptothermal and post-ovulation methods] and withdrawal are not acceptable).
  • Male participants should be instructed not to get their partners pregnant until 3 months after the last administration.

Exclusion Criteria:

  • Use of any investigational or non-registered product (vaccine or drug) other than the trial vaccine within 28 days preceding the administration of the trial vaccine, or planned use during the trial period.
  • Receipt of any other vaccines within 28 days prior to enrollment in this trial or planned receipt of any vaccine within 28 days of trial vaccine administration (primary dose or booster dose).
  • Receipt of any investigational or licensed/authorized SARS-CoV-2 or other coronavirus vaccine prior to the administration of the trial vaccine.
  • Any treatment with immunosuppressants or other immune-modifying drugs (including, but not limited to, corticosteroids, biologicals, and methotrexate) within 6 months prior to the administration of the trial vaccine or planned use during the trial, with the exception of topically-applied, inhaled, or intranasal steroids.
  • Use of hormonal therapy for gender reassignment.
  • Any medically diagnosed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination, including known human immunodeficiency virus infection, hepatitis B virus infection, and hepatitis C virus infection.
  • History of immune-mediated or autoimmune disease.
  • History of angioedema (known C1 inhibitor deficiency).
  • History of anaphylaxis or allergy to any component of CVnCoV or aminoglycoside antibiotics.
  • History of or current alcohol and/or drug abuse.
  • Participants who are active smokers, were active smokers within the last year (including any vaping in the last year), or have a total smoking history ≥10 pack years. A pack year is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked.
  • History of virologically-confirmed Severe Acute Respiratory Syndrome (SARS), Middle East Respiratory Syndrome (MERS), or COVID-19 disease or known exposure (without any personal protective equipment) to an individual with confirmed COVID-19 disease or SARS-CoV-2 infection within the past 2 weeks.
  • Administration of immunoglobulins and/or any blood products within the 3 months preceding the administration of any dose of the trial vaccine.
  • Presence or evidence of significant uncontrolled acute or chronic medical or psychiatric illness. Significant medical or psychiatric illnesses include but are not limited to:

    • Uncontrolled respiratory disease (e.g., chronic obstructive pulmonary disease, asthma), including use of the following asthma medications: intravenous corticosteroids, leukotriene modifiers, biologics.
    • Uncontrolled cardiovascular disease (e.g., congestive heart failure, cardiomyopathy, ischemic heart disease, history of stroke, peripheral artery disease, pulmonary embolism).
    • History of myocarditis or pericarditis as an adult.
    • Diabetes mellitus (insulin-dependent).
    • Uncontrolled neurological disorders or Guillain-Barré syndrome or history of seizure, except for febrile seizures during childhood.
    • Current or past malignancy, unless completely resolved without sequelae for >5 years.
  • Foreseeable non-compliance with protocol, as judged by the Investigator.
  • For female participants: pregnancy or lactation.
  • Participants with impaired coagulation or any bleeding disorder in whom an intramuscular injection or a blood draw is contraindicated. This includes participants on treatment with anticoagulants (e.g., vitamin K antagonists, novel oral anticoagulants, and heparin). Use of platelet aggregation inhibitors is not exclusionary.
  • Participants employed by the Sponsor, Investigator, or trial site, or relatives of research staff working on this trial.
  • Participants considered at the Investigator's discretion to be at increased risk of exposure to COVID-19 disease.

Sites / Locations

  • Centro de vacunación internacional - CEVAXIN Panama Clinic
  • Instituto de Investigación Nutricional

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm 9

Arm 10

Arm Type

Experimental

Experimental

Experimental

Experimental

Active Comparator

Active Comparator

Experimental

Active Comparator

Experimental

Active Comparator

Arm Label

Part 1, Group 1: CVnCoV 6 μg

Part 1, Group 2: CVnCoV 6 μg

Part 1, Group 3: CVnCoV 12 μg

Part 1, Group 4: CVnCoV 12 μg

Part 1, Group 5: Hepatitis A vaccine

Part 1, Group 6: Pneumococcal vaccine

Part 2, Group 1: CVnCoV 12 µg

Part 2, Group 2: Hepatitis A vaccine

Part 2, Group 3: CVnCoV 12 µg

Part 2, Group 4: Pneumococcal vaccine

Arm Description

Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.

Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged over 60 years old.

Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be between the ages of 18 to 60 years old. CVnCoV will be administered again as a booster vaccination on Day 180 in a sub-group of participants.

Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged over 60 years old. CVnCoV will be administered again as a booster vaccination on Day 57 or Day 180 in a sub-group of participants.

Participants will be vaccinated with a hepatitis A vaccine on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.

Participants will be vaccinated with a pneumococcal vaccine on Day 1 and Day 29. Participants in this group will be aged over 60 years old.

Participants will be vaccinated with CVnCoV 12 µg on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.

Participants will be vaccinated with a hepatitis A vaccine on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.

Participants will be vaccinated with CVnCoV 12 µg on Day 1 and Day 29. Participants in this group will be aged over 60 years old.

Participants will be vaccinated with a pneumococcal vaccine on Day 1 and Day 29. Participants in this group will be aged over 60 years old.

Outcomes

Primary Outcome Measures

Number of Participants Who Experienced a Solicited Adverse Event (AE) Occurring on the Day of Vaccination and the Following 7 Days After Dose 1 and Dose 2
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). By definition, all solicited local AEs occurring from the time of first vaccination were considered related to trial vaccination. For solicited systemic AEs, the Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Intensity of Solicited AEs Per US Food and Drug Administration (FDA) Toxicity Grading Scale Occurring on the Day of Vaccination and the Following 7 Days After Dose 1 and Dose 2
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Intensity of solicited local AEs and solicited systemic AEs were graded per the FDA Toxicity Grading Scale at Grades 1-3, where higher grades indicate a worse outcome.
Duration of Solicited AEs Occurring on the Day of Vaccination and the Following 7 Days After After Dose 1 and Dose 2
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Duration is calculated as consecutive days with a respective solicited AE regardless of the grade of the AE. AEs ongoing after day 8 are included.
Number of Participants Who Experienced an Unsolicited AE Occurring on the Day of Vaccination and the Following 28 Days After Dose 1 and Dose 2
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Intensity of Unsolicited AEs Per the Investigator's Assessment Occurring on the Day of Vaccination and the Following 28 Days After Dose 1 and Dose 2
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator made an assessment of intensity for each AE reported during the trial and assigned it to one of the following categories: Mild: an event that was easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate: an event that caused sufficient discomfort to interfere with normal everyday activities. Severe: an event that prevented normal everyday activities.
Number of Participants Who Experienced a Serious Adverse Event (SAE) During the Trial
An SAE was defined as any untoward medical occurrence that, at any dose: Resulted in death. Was life-threatening. Required inpatient hospitalization or prolongation of existing hospitalization. Resulted in persistent disability/incapacity. Was a congenital anomaly/birth defect in the offspring of the participant. Was an important medical event. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Number of Participants Who Experienced an Adverse Event of Special Interest (AESI) During the Trial
AESIs included: AEs with a suspected immune-medicated etiology. COVID-19 disease. Other AEs relevant to SARS-CoV-2 vaccine development or the target disease. Participants who became unblinded and/or received a licensed/authorized vaccine were censored at the day after unblinding or at the day after receiving the licensed/authorized vaccine, whichever was earlier. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Percentage of Participants Seroconverting for SARS-CoV-2 Spike Protein Receptor-Binding Domain (RBD) Antibodies on Day 29 and Day 43
As measured by enzyme-linked immunosorbent assay (ELISA). In participants not exposed to SARS-CoV-2 before the trial seroconversion was defined as any increase in titer in antibodies against SARS-CoV-2 RBD versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Geometric Mean Titers (GMTs) of SARS-CoV-2 Spike Protein RBD Antibodies on Day 29 and Day 43
As measured by ELISA. The SARS-CoV-2 spike RBD protein-specific antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Percentage of Participants Seroconverting for SARS-CoV-2 Neutralizing Antibodies on Day 29 and Day 43
As measured by an activity assay. In participants not exposed to SARS-CoV-2 before the trial, seroconversion was defined as any increase in titer in SARS-CoV-2 neutralizing antibodies versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
GMTs of SARS-CoV-2 Neutralizing Antibodies on Day 29 and Day 43
The SARS-CoV-2 neutralizing antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.

Secondary Outcome Measures

Number of Participants Who Experienced a Solicited Adverse Event (AE) Occurring on the Day of Booster Vaccination and the Following 7 Days
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). By definition, all solicited local AEs occurring from the time of first vaccination were considered related to trial vaccination. For solicited systemic AEs, the Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Intensity of Solicited AEs Per FDA Toxicity Grading Scale Occurring on the Day of Booster Vaccination and the Following 7 Days
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Intensity of solicited local AEs and solicited systemic AEs were graded per the FDA Toxicity Grading Scale at Grades 1-3, where higher grades indicate a worse outcome.
Duration of Solicited AEs Occurring on the Day of Booster Vaccination and the Following 7 Days
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Duration is calculated as consecutive days with a respective solicited AE regardless of the grade of the adverse event.
Number of Participants Who Experienced an Unsolicited AE Occurring on the Day of Booster Vaccination and the Following 28 Days
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Intensity of Unsolicited AEs Per the Investigator's Assessment Occurring on the Day of Booster Vaccination and the Following 28 Days
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator made an assessment of intensity for each AE reported during the trial and assigned it to one of the following categories: Mild: an event that was easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate: an event that caused sufficient discomfort to interfere with normal everyday activities. Severe: an event that prevented normal everyday activities.
Percentage of Participants Seroconverting for SARS-CoV-2 Spike Protein RBD Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
As measured by ELISA. In participants not exposed to SARS-CoV-2 before the trial seroconversion was defined as any increase in titer in antibodies against SARS-CoV-2 RBD versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
GMTs of SARS-CoV-2 Spike Protein RBD Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
As measured by ELISA. The SARS-CoV-2 spike RBD protein-specific antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
Percentage of Participants Seroconverting for SARS-CoV-2 Neutralizing Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
As measured by an activity assay. In participants not exposed to SARS-CoV-2 before the trial, seroconversion was defined as any increase in titer in SARS-CoV-2 neutralizing antibodies versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
GMTs of SARS-CoV-2 Neutralizing Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
As measured by an activity assay. The SARS-CoV-2 neutralizing antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.

Full Information

First Posted
August 13, 2020
Last Updated
September 21, 2023
Sponsor
CureVac
Collaborators
German Federal Ministry of Education and Research
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1. Study Identification

Unique Protocol Identification Number
NCT04515147
Brief Title
A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19
Official Title
COVID-19: A Phase 2a, Partially Observer-blind, Multicenter, Controlled, Dose-confirmation Clinical Trial to Evaluate the Safety, Reactogenicity and Immunogenicity of the Investigational SARS-CoV-2 mRNA Vaccine CVnCoV in Adults >60 Years of Age and 18 to 60 Years of Age
Study Type
Interventional

2. Study Status

Record Verification Date
September 2023
Overall Recruitment Status
Completed
Study Start Date
September 21, 2020 (Actual)
Primary Completion Date
February 21, 2022 (Actual)
Study Completion Date
February 21, 2022 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
CureVac
Collaborators
German Federal Ministry of Education and Research

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This study aims to evaluate the safety and reactogenicity profile after 1 and 2 dose administrations of investigational SARS-CoV-2 mRNA vaccine (CVnCoV) at different dose levels and to evaluate the humoral immune response after 1 and 2 dose administrations of CVnCoV.
Detailed Description
This clinical trial information was submitted voluntarily under the applicable law and, therefore, certain submission deadlines may not apply. (That is, clinical trial information for this applicable clinical trial was submitted under section 402(j)(4)(A) of the Public Health Service Act and 42 CFR 11.60 and is not subject to the deadlines established by sections 402(j)(2) and (3) of the Public Health Service Act or 42 CFR 11.24 and 11.44.).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Coronavirus, Covid19, SARS-CoV-2, Severe Acute Respiratory Syndrome
Keywords
Vaccine, SARS, COVID, Safety, Reactogenicity, Immunogenicity

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2
Interventional Study Model
Sequential Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
668 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Part 1, Group 1: CVnCoV 6 μg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.
Arm Title
Part 1, Group 2: CVnCoV 6 μg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged over 60 years old.
Arm Title
Part 1, Group 3: CVnCoV 12 μg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be between the ages of 18 to 60 years old. CVnCoV will be administered again as a booster vaccination on Day 180 in a sub-group of participants.
Arm Title
Part 1, Group 4: CVnCoV 12 μg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV on Day 1 and Day 29. Participants in this group will be aged over 60 years old. CVnCoV will be administered again as a booster vaccination on Day 57 or Day 180 in a sub-group of participants.
Arm Title
Part 1, Group 5: Hepatitis A vaccine
Arm Type
Active Comparator
Arm Description
Participants will be vaccinated with a hepatitis A vaccine on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.
Arm Title
Part 1, Group 6: Pneumococcal vaccine
Arm Type
Active Comparator
Arm Description
Participants will be vaccinated with a pneumococcal vaccine on Day 1 and Day 29. Participants in this group will be aged over 60 years old.
Arm Title
Part 2, Group 1: CVnCoV 12 µg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV 12 µg on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.
Arm Title
Part 2, Group 2: Hepatitis A vaccine
Arm Type
Active Comparator
Arm Description
Participants will be vaccinated with a hepatitis A vaccine on Day 1 and Day 29. Participants in this group will be aged between 18 and 60 years old.
Arm Title
Part 2, Group 3: CVnCoV 12 µg
Arm Type
Experimental
Arm Description
Participants will be vaccinated with CVnCoV 12 µg on Day 1 and Day 29. Participants in this group will be aged over 60 years old.
Arm Title
Part 2, Group 4: Pneumococcal vaccine
Arm Type
Active Comparator
Arm Description
Participants will be vaccinated with a pneumococcal vaccine on Day 1 and Day 29. Participants in this group will be aged over 60 years old.
Intervention Type
Biological
Intervention Name(s)
CVnCoV 6 μg
Other Intervention Name(s)
CV07050101
Intervention Description
Participants will receive an intramuscular injection by needle in the deltoid area.
Intervention Type
Biological
Intervention Name(s)
CVnCoV 12 μg
Other Intervention Name(s)
CV07050101
Intervention Description
Participants will receive an intramuscular injection by needle in the deltoid area.
Intervention Type
Biological
Intervention Name(s)
Hepatitis A vaccine
Intervention Description
Participants will receive an intramuscular injection by needle in the deltoid area.
Intervention Type
Biological
Intervention Name(s)
Pneumococcal vaccine
Intervention Description
Participants will receive an intramuscular injection by needle in the deltoid area.
Intervention Type
Biological
Intervention Name(s)
CVnCoV 12μg
Other Intervention Name(s)
CV07050101
Intervention Description
Participants will receive an intramuscular injection by needle in the deltoid area.
Primary Outcome Measure Information:
Title
Number of Participants Who Experienced a Solicited Adverse Event (AE) Occurring on the Day of Vaccination and the Following 7 Days After Dose 1 and Dose 2
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). By definition, all solicited local AEs occurring from the time of first vaccination were considered related to trial vaccination. For solicited systemic AEs, the Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to 7 days after Dose 1 (Days 1 to 8) and Dose 2 (Days 29 to 36)
Title
Intensity of Solicited AEs Per US Food and Drug Administration (FDA) Toxicity Grading Scale Occurring on the Day of Vaccination and the Following 7 Days After Dose 1 and Dose 2
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Intensity of solicited local AEs and solicited systemic AEs were graded per the FDA Toxicity Grading Scale at Grades 1-3, where higher grades indicate a worse outcome.
Time Frame
Up to 7 days after Dose 1 (Days 1 to 8) and Dose 2 (Days 29 to 36)
Title
Duration of Solicited AEs Occurring on the Day of Vaccination and the Following 7 Days After After Dose 1 and Dose 2
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Duration is calculated as consecutive days with a respective solicited AE regardless of the grade of the AE. AEs ongoing after day 8 are included.
Time Frame
Up to 7 days after Dose 1 (Days 1 to 8) and Dose 2 (Days 29 to 36)
Title
Number of Participants Who Experienced an Unsolicited AE Occurring on the Day of Vaccination and the Following 28 Days After Dose 1 and Dose 2
Description
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to 28 days after Dose 1 (Days 1 to 29) and Dose 2 (Days 29 to 57)
Title
Intensity of Unsolicited AEs Per the Investigator's Assessment Occurring on the Day of Vaccination and the Following 28 Days After Dose 1 and Dose 2
Description
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator made an assessment of intensity for each AE reported during the trial and assigned it to one of the following categories: Mild: an event that was easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate: an event that caused sufficient discomfort to interfere with normal everyday activities. Severe: an event that prevented normal everyday activities.
Time Frame
Up to 28 days after Dose 1 (Days 1 to 29) and Dose 2 (Days 29 to 57)
Title
Number of Participants Who Experienced a Serious Adverse Event (SAE) During the Trial
Description
An SAE was defined as any untoward medical occurrence that, at any dose: Resulted in death. Was life-threatening. Required inpatient hospitalization or prolongation of existing hospitalization. Resulted in persistent disability/incapacity. Was a congenital anomaly/birth defect in the offspring of the participant. Was an important medical event. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to Day 393
Title
Number of Participants Who Experienced an Adverse Event of Special Interest (AESI) During the Trial
Description
AESIs included: AEs with a suspected immune-medicated etiology. COVID-19 disease. Other AEs relevant to SARS-CoV-2 vaccine development or the target disease. Participants who became unblinded and/or received a licensed/authorized vaccine were censored at the day after unblinding or at the day after receiving the licensed/authorized vaccine, whichever was earlier. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to Day 393
Title
Percentage of Participants Seroconverting for SARS-CoV-2 Spike Protein Receptor-Binding Domain (RBD) Antibodies on Day 29 and Day 43
Description
As measured by enzyme-linked immunosorbent assay (ELISA). In participants not exposed to SARS-CoV-2 before the trial seroconversion was defined as any increase in titer in antibodies against SARS-CoV-2 RBD versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Time Frame
Baseline, Day 29 and Day 43
Title
Geometric Mean Titers (GMTs) of SARS-CoV-2 Spike Protein RBD Antibodies on Day 29 and Day 43
Description
As measured by ELISA. The SARS-CoV-2 spike RBD protein-specific antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Time Frame
Day 29 and Day 43
Title
Percentage of Participants Seroconverting for SARS-CoV-2 Neutralizing Antibodies on Day 29 and Day 43
Description
As measured by an activity assay. In participants not exposed to SARS-CoV-2 before the trial, seroconversion was defined as any increase in titer in SARS-CoV-2 neutralizing antibodies versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
Time Frame
Baseline, Day 29 and Day 43
Title
GMTs of SARS-CoV-2 Neutralizing Antibodies on Day 29 and Day 43
Description
The SARS-CoV-2 neutralizing antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Time Frame
Day 29 and Day 43
Secondary Outcome Measure Information:
Title
Number of Participants Who Experienced a Solicited Adverse Event (AE) Occurring on the Day of Booster Vaccination and the Following 7 Days
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). By definition, all solicited local AEs occurring from the time of first vaccination were considered related to trial vaccination. For solicited systemic AEs, the Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to 7 days after booster vaccination (Days 57 to 64 and Days 180 to 187)
Title
Intensity of Solicited AEs Per FDA Toxicity Grading Scale Occurring on the Day of Booster Vaccination and the Following 7 Days
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Intensity of solicited local AEs and solicited systemic AEs were graded per the FDA Toxicity Grading Scale at Grades 1-3, where higher grades indicate a worse outcome.
Time Frame
Up to 7 days after booster vaccination (Days 57 to 64 and Days 180 to 187)
Title
Duration of Solicited AEs Occurring on the Day of Booster Vaccination and the Following 7 Days
Description
Solicited local AEs (injection site pain, redness, swelling, and itching) and solicited systemic AEs (fever, headache, fatigue, chills, myalgia, arthralgia, nausea/vomiting, and diarrhea) were recorded on the day of vaccination and the following 7 days using a diary (electronic or paper). Duration is calculated as consecutive days with a respective solicited AE regardless of the grade of the adverse event.
Time Frame
Up to 7 days after booster vaccination (Days 57 to 64 and Days 180 to 187)
Title
Number of Participants Who Experienced an Unsolicited AE Occurring on the Day of Booster Vaccination and the Following 28 Days
Description
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator assessed the relationship between trial vaccine and each occurrence of each AE.
Time Frame
Up to 28 days after booster vaccination (Days 57 to 85 and Days 180 to 208)
Title
Intensity of Unsolicited AEs Per the Investigator's Assessment Occurring on the Day of Booster Vaccination and the Following 28 Days
Description
Diaries were used for collection of unsolicited AEs on each vaccination day and the following 28 days. In addition, participants received a prompt (by e.g., a phone call or text message) to verify whether the participants had any health concerns since the last visit. The Investigator made an assessment of intensity for each AE reported during the trial and assigned it to one of the following categories: Mild: an event that was easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate: an event that caused sufficient discomfort to interfere with normal everyday activities. Severe: an event that prevented normal everyday activities.
Time Frame
Up to 28 days after booster vaccination (Days 57 to 85 and Days 180 to 208)
Title
Percentage of Participants Seroconverting for SARS-CoV-2 Spike Protein RBD Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
Description
As measured by ELISA. In participants not exposed to SARS-CoV-2 before the trial seroconversion was defined as any increase in titer in antibodies against SARS-CoV-2 RBD versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
Time Frame
For participants who received the booster vaccination on Day 57: Baseline, Day 57, Day 85 and Day 180. For participants who received the booster vaccination on Day 180: Baseline, Day 180, Day 208 and Day 393
Title
GMTs of SARS-CoV-2 Spike Protein RBD Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
Description
As measured by ELISA. The SARS-CoV-2 spike RBD protein-specific antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
Time Frame
For participants who received the booster vaccination on Day 57: Day 57, Day 85 and Day 180. For participants who received the booster vaccination on Day 180: Day 180, Day 208 and Day 393
Title
Percentage of Participants Seroconverting for SARS-CoV-2 Neutralizing Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
Description
As measured by an activity assay. In participants not exposed to SARS-CoV-2 before the trial, seroconversion was defined as any increase in titer in SARS-CoV-2 neutralizing antibodies versus baseline. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/authorized vaccine.
Time Frame
For participants who received the booster vaccination on Day 57: Baseline, Day 57, Day 85 and Day 180. For participants who received the booster vaccination on Day 180: Baseline, Day 180, Day 208 and Day 393
Title
GMTs of SARS-CoV-2 Neutralizing Antibodies on Day 57, Day 85, Day 180, Day 208 and Day 393
Description
As measured by an activity assay. The SARS-CoV-2 neutralizing antibodies are expressed as GMT (geometric mean of reciprocal duplicate dilutions). Concentration/titers marked as below the lower limit of quantification (LLOQ) were arbitrary replaced by half of the LLOQ for GMT computations purpose. Participants who received a licensed/authorized vaccine were censored at the day after receiving the licensed/ authorized vaccine.
Time Frame
For participants who received the booster vaccination on Day 57: Day 57, Day 85 and Day 180. For participants who received the booster vaccination on Day 180: Day 180, Day 208 and Day 393

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy male and female participants ≥18 years of age. A healthy participant is defined as an individual who is in good general health, according to the Investigator's assessment. Chronic health conditions are acceptable if the condition is considered well controlled with treatment according to the discretion of the Investigator. Expected to be compliant with protocol procedures and available for clinical follow-up through the last planned visit. Participants are able to understand and willing to provide informed consent. Physical examination without clinically significant findings according to the Investigator's assessment. Body mass index (BMI) ≥18.0 and ≤32.0 kg/m^2. Female participants of childbearing potential: at the time of enrollment, negative human chorionic gonadotropin (hCG) pregnancy test (serum) for female participants presumed to be of childbearing potential on the day of enrollment. On Day 1 (pre-vaccination): negative urine pregnancy test (required if serum pregnancy test was performed more than 3 days before). Female participants of childbearing potential must use highly effective methods of birth control from 2 weeks before the first administration of the trial vaccine until 3 months following the last administration. The following methods of birth control are considered highly effective when used consistently and correctly: Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal or transdermal); Progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable or implantable); Intrauterine devices; Intrauterine hormone-releasing systems; Bilateral tubal occlusion; Vasectomized partner; Sexual abstinence (periodic abstinence [e.g., calendar, ovulation, symptothermal and post-ovulation methods] and withdrawal are not acceptable). Male participants should be instructed not to get their partners pregnant until 3 months after the last administration. Exclusion Criteria: Use of any investigational or non-registered product (vaccine or drug) other than the trial vaccine within 28 days preceding the administration of the trial vaccine, or planned use during the trial period. Receipt of any other vaccines within 28 days prior to enrollment in this trial or planned receipt of any vaccine within 28 days of trial vaccine administration (primary dose or booster dose). Receipt of any investigational or licensed/authorized SARS-CoV-2 or other coronavirus vaccine prior to the administration of the trial vaccine. Any treatment with immunosuppressants or other immune-modifying drugs (including, but not limited to, corticosteroids, biologicals, and methotrexate) within 6 months prior to the administration of the trial vaccine or planned use during the trial, with the exception of topically-applied, inhaled, or intranasal steroids. Use of hormonal therapy for gender reassignment. Any medically diagnosed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination, including known human immunodeficiency virus infection, hepatitis B virus infection, and hepatitis C virus infection. History of immune-mediated or autoimmune disease. History of angioedema (known C1 inhibitor deficiency). History of anaphylaxis or allergy to any component of CVnCoV or aminoglycoside antibiotics. History of or current alcohol and/or drug abuse. Participants who are active smokers, were active smokers within the last year (including any vaping in the last year), or have a total smoking history ≥10 pack years. A pack year is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked. History of virologically-confirmed Severe Acute Respiratory Syndrome (SARS), Middle East Respiratory Syndrome (MERS), or COVID-19 disease or known exposure (without any personal protective equipment) to an individual with confirmed COVID-19 disease or SARS-CoV-2 infection within the past 2 weeks. Administration of immunoglobulins and/or any blood products within the 3 months preceding the administration of any dose of the trial vaccine. Presence or evidence of significant uncontrolled acute or chronic medical or psychiatric illness. Significant medical or psychiatric illnesses include but are not limited to: Uncontrolled respiratory disease (e.g., chronic obstructive pulmonary disease, asthma), including use of the following asthma medications: intravenous corticosteroids, leukotriene modifiers, biologics. Uncontrolled cardiovascular disease (e.g., congestive heart failure, cardiomyopathy, ischemic heart disease, history of stroke, peripheral artery disease, pulmonary embolism). History of myocarditis or pericarditis as an adult. Diabetes mellitus (insulin-dependent). Uncontrolled neurological disorders or Guillain-Barré syndrome or history of seizure, except for febrile seizures during childhood. Current or past malignancy, unless completely resolved without sequelae for >5 years. Foreseeable non-compliance with protocol, as judged by the Investigator. For female participants: pregnancy or lactation. Participants with impaired coagulation or any bleeding disorder in whom an intramuscular injection or a blood draw is contraindicated. This includes participants on treatment with anticoagulants (e.g., vitamin K antagonists, novel oral anticoagulants, and heparin). Use of platelet aggregation inhibitors is not exclusionary. Participants employed by the Sponsor, Investigator, or trial site, or relatives of research staff working on this trial. Participants considered at the Investigator's discretion to be at increased risk of exposure to COVID-19 disease.
Facility Information:
Facility Name
Centro de vacunación internacional - CEVAXIN Panama Clinic
City
Panama city
ZIP/Postal Code
0831
Country
Panama
Facility Name
Instituto de Investigación Nutricional
City
Lima
ZIP/Postal Code
Lima - 12
Country
Peru

12. IPD Sharing Statement

Learn more about this trial

A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19

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