TAK-019 is a vaccine in development to protect people against Covid-19. The main aims of the study are to learn if TAK-019 can protect people from Covid-19 and to check for side effects from TAK-019 for participants who will receive TAK-019 as heterologous booster vaccination. This study consists of two parts, main part and extension part. Firstly, participants who completed 2 doses primary vaccinations 6 to 12 months prior to the trial vaccination can take part in main study. At the first visit of main part of this study, the study doctor will check if each person can take part. Participants who can take part will receive an injection of TAK-019 as booster vaccination. Participants will be asked to record their temperature and any medical problems in an electronic diary for up to 7 days after the injection. During the main part, participants will visit the clinic for regular check-ups, blood tests, and sometimes for nose swab samples. When all participants have attended a clinic visit 28 days after the injection, the study sponsor (Takeda) will check how many participants have made enough antibodies to protect them against Covid-19. Participants who received the first single booster vaccination of TAK-019 in the main part and remained in study follow-up at least 5 months will be able to decide to take part in the extension part of this study. At the first visit of extension part of this study, the study doctor will check if each person can take part. Participants who can take part will receive an injection of TAK-019 as a second booster vaccination at the first visit of extension part. The participants will stay in the main part of this study for up to 12 months after they have had their injection or up to the start of extension part. For participants who will take part in the extension part, they will stay in the extension part for up to 12 months from the start of extension part. During this time, the doctors will continue to collect blood samples to check immune response. Also, they will check if participants have any more side effects from TAK-019.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
150
TAK-019 intramuscular injection
Sumida Hospital
Sumida-ku, Tokyo, Japan
PS Clinic
Fukuoka, Japan
Main Part: Geometric Mean Titers (GMT) Ratio of Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Day 15 Compared With That Observed on Day 36 in Participants From the TAK-019-1501 Study
GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average for each group. Titer values was measured as below lower limit of quantification (LLOQ) were imputed to a value that was half of the LLOQ. LLOQ was equal to 20. GMT for each group and GMT ratio of neutralizing antibody titers to the ancestral strain (wild-type virus) on Day15 after a single booster vaccination (14 days after the booster vaccination) compared with that observed on Day 36 (14 days after the second vaccination) in participants from the TAK-019-1501 study (NCT04712110) were reported. GMT ratio was calculated with GMT of TAK-019-3001 on Day 15 divided by GMT of TAK-019-1501 study on Day 36. Here, ELISA is Enzyme-linked immunosorbent assay.
Time frame: Day 15 for this study (14 days after the vaccination); Day 36 for TAK-019-1501 study (14 days after the second vaccination)
Main Part: Percentage of Participants With Reported Solicited Local Adverse Events (AEs) for 7 Days Following the First Single Booster Vaccination
AE was defined as any untoward medical occurrence in a clinical investigation participant administered an investigational medicinal product (IMP); it did not necessarily have to have a causal relationship with IMP administration. Reported solicited local AEs were defined as injection site pain, tenderness, erythema/redness, induration, and swelling.
Time frame: Main Part: 7 days after the first single booster vaccination
Main Part: Percentage of Participants With Solicited Systemic AEs for 7 Days Following the First Single Booster Vaccination
Solicited systemic AEs were defined as fever, fatigue, malaise, myalgia, arthralgia, nausea/vomiting, and headache.
Time frame: Main Part: 7 days after the first single booster vaccination
Main Part: Percentage of Participants With Unsolicited AEs for 28 Days Following the First Single Booster Vaccination
Unsolicited AEs defines as other AEs than solicited local AEs and solicited systemic AEs.
Time frame: Main Part: 28 days after the first single booster vaccination
Main Part: Percentage of Participants With Solicited and Unsolicited Serious Adverse Events (SAE) Until Day 29
An SAE was defined as any untoward medical occurrence that: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, Results in persistent or significant disability/incapacity, leads to a congenital anomaly/birth defect in the offspring of a participant, or is an important medical event. Solicited SAEs and unsolicited SAEs were reported.
Time frame: Main Part: Up to Day 29
Main Part: Percentage of Participants With Adverse Event of Special Interest (AESI) Until Day 29
An AESI was defined as AEs that will be specifically highlighted to the Investigator. AESIs for the study included the Potential Immune Mediated Medical Conditions (PIMMC) and AEs specific to COVID-19. PIMMC is categorized as following; neuroinflammatory disorders, musculoskeletal and connective tissue disorders, vasculitides, gastrointestinal disorders, hepatic disorders, renal disorders, cardiac disorders, skin disorder, hematologic disorders, metabolic disorders, and other disorders.
Time frame: Main Part: Up to Day 29
Main Part: Percentage of Participants With Medically-Attended Adverse Events (MAAEs) Until Day 29
MAAEs were defined as AEs leading to an unscheduled visit to or by a healthcare professional including visits to an emergency department, but not fulfilling seriousness criteria.
Time frame: Main Part: Up to Day 29
Main Part: Percentage of Participants With Any AE Leading to Withdrawal From the Trial Until Day 29
Percentage of participants with any AE leading to withdrawal from the trial until Day 29 was reported.
Time frame: Main Part: Up to Day 29
Main Part: Percentage of Participants With Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Infection Until Day 29
Percentage of participants with SARS-CoV-2 infection until Day 29 of the main part of the trial were reported in this outcome measure.
Time frame: Main Part: Up to Day 29
Main Part: GMT of Serum Immunoglobulin G (IgG) Antibody Levels to SARS-CoV-2 Recombinant Spike (rS) Protein on Day 8, 15, 29, 91, 181, and 366
GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average. Titer values was measured as below LLOQ were imputed to a value that was half of the LLOQ. LLOQ was equal to 200 EU/mL.
Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: Geometric Mean Fold Rise (GMFR) of Serum IgG Antibody Levels to SARS-CoV-2 rS Protein on Day 8, 15, 29, 91, 181, and 366
GMFR was calculated as the ratio of the post-vaccination titer level to the baseline titer level. Where baseline was defined as the last measurement taken before the first dose of trial vaccination.
Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: Seroconversion Rate (SCR) of Serum IgG Antibody Levels to SARS-CoV-2 rS Protein on Day 8, 15, 29, 91, 181, and 366
SCR was defined as percentage of participants with 4-fold or more rises from baseline in titer. Baseline was defined as the last measurement taken before the first dose of trial vaccination.
Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: GMT of Serum Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Day 8, 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at which greater than or equal to (\>=) 50 percent (%) of the replicate wells were protected from infection (microneutralization \[MN\] with an inhibitory concentration of 50% \[MN50\]). GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average. Titer values was measured as below LLOQ were imputed to a value that was half of the LLOQ where LLOQ was equal to 20.
Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: GMFR of Serum Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Day 8, 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at which \>=50% of the replicate wells were protected from infection (MN50). GMFR was calculated as the ratio of the post-vaccination titer level to the baseline titer level. Baseline was defined as the last measurement taken before the first dose of trial vaccination.
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Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: SCR of Serum Neutralizing Antibody Titters to the Ancestral Strain (Wild-type Virus) on Day 8, 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at which greater than or equal to (\>=) 50% of the replicate wells were protected from infection (MN50). SCR was defined as percentage of participants with 4-fold or more rises in from baseline. Baseline was defined as the last measurement taken before the first dose of trial vaccination.
Time frame: Main Part: Day 8, 15, 29, 91, 181, and 366
Main Part: Percentage of Participants With Solicited and Unsolicited SAEs Throughout the Main Part of Trial
An SAE was defined as any untoward medical occurrence that: Results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, Results in persistent or significant disability/incapacity, leads to a congenital anomaly/birth defect in the offspring of a participant, or is an important medical event. Solicited SAEs and unsolicited SAEs were reported.
Time frame: Main Part: Up to Day 366
Main Part: Percentage of Participants With AESI Throughout the Main Part of Trial
An AESI was defined as AEs that will be specifically highlighted to the Investigator. AESIs for the study included the PIMMC and AEs specific to COVID-19. PIMMC is categorized as following; neuroinflammatory disorders, musculoskeletal and connective tissue disorders, vasculitides, gastrointestinal disorders, hepatic disorders, renal disorders, cardiac disorders, skin disorder, hematologic disorders, metabolic disorders, and other disorders.
Time frame: Main Part: Up to Day 366
Main Part: Percentage of Participants With MAAEs Throughout the Main Part of Trial
MAAEs were defined as AEs leading to an unscheduled visit to or by a healthcare professional including visits to an emergency department, but not fulfilling seriousness criteria.
Time frame: Main Part: Up to Day 366
Main Part: Percentage of Participants With Any AE Leading to Participant's Withdrawal From the Trial From the Day of the First Single Booster Vaccination Throughout the Main Part of Trial
Percentage of participants with any AE leading to participant's withdrawal from the trial from the day of the first single booster vaccination throughout the main part of trial was reported.
Time frame: Main Part: Day 1 up to Day 366
Main Part: Percentage of Participants With SARS-CoV-2 Infection Throughout the Main Part of Trial
Percentage of participants with SARS-CoV-2 infection throughout the main part of trial was reported.
Time frame: Main Part: Day 1 up to Day 366
Extension Part: GMT of Serum IgG Antibody Levels to SARS-CoV-2 rS Protein on Day 15, 29, 91, 181, and 366
GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average. Titer values was measured as below LLOQ were imputed to a value that was half of the LLOQ. LLOQ was equal to 200 EU/mL.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: GMFR of Serum IgG Antibody Levels to SARS-CoV-2 rS Protein on Extension Part Day 15, 29, 91, 181, and 366
The GMFR was calculated as the ratio of the post-second-booster-vaccination titer level to extension part baseline titer level. Where extension part baseline was defined as last measurement taken before the second booster vaccination.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: Seroconversion Rate (SCR) of Serum IgG Antibody Levels to SARS-CoV-2 rS Protein on Extension Part Day 15, 29, 91, 181, and 366
SCR was defined as percentage of participants with 4-fold or more rises in titer from extension part baseline. Where extension part baseline was defined as last measurement taken before the second booster vaccination.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: GMT of Serum Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Extension Part Day 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at \>= 50% of the replicate wells were protected from infection (MN50). GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average. Titer values was measured as below LLOQ were imputed to a value that was half of the LLOQ where LLOQ was equal to 20.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: GMFR of Serum Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Extension Part Day 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at \>= 50% of the replicate wells were protected from infection (MN50). The GMFR was calculated as the ratio of the post-second-booster-vaccination titer level to extension part baseline titer level. Where extension part baseline was defined as last measurement taken before the second booster vaccination.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: SCR of Serum Neutralizing Antibody Titers to the Ancestral Strain (Wild-type Virus) on Extension Part Day 15, 29, 91, 181, and 366
The neutralization titer was expressed as the reciprocal of the highest dilution at \>= 50% of the replicate wells were protected from infection (MN50). SCR was defined as percentage of participants with 4-fold or more rises in titer from extension part baseline.
Time frame: Extension Part: Day 15, 29, 91, 181, and 366
Extension Part: Percentage of Participants With Reported Solicited Local AEs for 7 Days Following the Second Single Booster Vaccination in Extension Part
AE was defined as any untoward medical occurrence in a clinical investigation participant administered an investigational medicinal product (IMP); it did not necessarily have to have a causal relationship with IMP administration. Reported solicited local AEs were defined as injection site pain, tenderness, erythema/redness, induration, and swelling.
Time frame: Extension Part: 7 days after the second single booster vaccination
Extension Part: Percentage of Participants With Solicited Systemic AEs for 7 Days Following the Second Single Booster Vaccination in Extension Part
Solicited systemic AEs included were defined as fever, fatigue, malaise, myalgia, arthralgia, nausea/vomiting and headache.
Time frame: Extension Part: 7 days after the second single booster vaccination
Extension Part: Percentage of Participants With Unsolicited AEs for 28 Days Following the Second Single Booster Vaccination in Extension Part
Unsolicited AEs defined as AEs other than solicited local AEs and solicited systemic AEs.
Time frame: Extension Part: 28 days after the second single booster vaccination
Extension Part: Percentage of Participants With Solicited and Unsolicited SAEs Until Extension Part Day 29
An SAE was defined as any untoward medical occurrence that: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, leads to a congenital anomaly/birth defect in the offspring of a participant, or is an important medical event. Solicited SAEs and unsolicited SAEs were reported.
Time frame: Extension Part: Up to Day 29
Extension Part: Percentage of Participants With AESIs Until Extension Part Day 29
An AESI was defined as AEs that will be specifically highlighted to the investigator. AESIs for the study included the PIMMC and AEs specific to COVID-19. PIMMC is categorized as following; neuroinflammatory disorders, musculoskeletal and connective tissue disorders, vasculitides, gastrointestinal disorders, hepatic disorders, renal disorders, cardiac disorders, skin disorder, hematologic disorders, metabolic disorders, and other disorders.
Time frame: Extension Part: Up to Day 29
Extension Part: Percentage of Participants With MAAEs Until Extension Part Day 29
MAAEs were defined as AEs leading to an unscheduled visit to or by a healthcare professional including visits to an emergency department, but not fulfilling seriousness criteria.
Time frame: Extension Part: Up to Day 29
Extension Part: Percentage of Participants With Any AEs Leading to Withdrawal From the Trial Until Extension Part Day 29
Percentage of participants with any AEs leading to withdrawal from the trial until extension part Day 29 was reported.
Time frame: Extension Part: Up to Day 29
Extension Part: Percentage of Participants With SARS-CoV-2 Infection Until Extension Part Day 29
Percentage of participants with SARS-CoV-2 infection until extension part Day 29 was reported.
Time frame: Extension Part: Up to Day 29
Extension Part: Percentage of Participants With Solicited and Unsolicited SAEs Throughout the Extension Part of the Trial
An SAE was defined as any untoward medical occurrence that: Results in death, Is life-threatening, Requires inpatient hospitalization or prolongation of existing hospitalization, Results in persistent or significant disability/incapacity, Leads to a congenital anomaly/birth defect in the offspring of a participant, or Is an important medical event. Solicited SAEs and unsolicited SAEs were reported.
Time frame: Extension Part: Up to Day 366
Extension Part: Percentage of Participants With AESIs Throughout the Extension Part of the Trial
An AESI was defined as AEs that will be specifically highlighted to the Investigator. AESIs for the study included the PIMMC and AEs specific to COVID-19. PIMMC is categorized as following; neuroinflammatory disorders, musculoskeletal and connective tissue disorders, vasculitides, gastrointestinal disorders, hepatic disorders, renal disorders, cardiac disorders, skin disorder, hematologic disorders, metabolic disorders, and other disorders.
Time frame: Extension Part: Up to Day 366
Extension Part: Percentage of Participants With MAAEs Throughout the Extension Part of the Trial
MAAEs were defined as AEs leading to an unscheduled visit to or by a healthcare professional including visits to an emergency department, but not fulfilling seriousness criteria.
Time frame: Extension Part: Up to Day 366
Extension Part: Percentage of Participants With Any AEs Leading to Withdrawal From the Trial From the Day of the Second Single Booster Vaccination Throughout the Extension Part of the Trial
Percentage of participants with any AEs leading to withdrawal from the trial from the day of the second single booster vaccination throughout the extension part of the trial was reported.
Time frame: Extension Part: From Day 1 up to Day 366
Extension Part: Percentage of Participants With SARS-CoV-2 Infection Throughout the Extension Part of Trial
Percentage of participants with SARS-CoV-2 infection throughout the extension part of trial was reported.
Time frame: Extension Part: Up to Day 366