NCT04677660

Brief Summary

TAK-919 is a vaccine in development to protect people against Covid-19. The main aims of the study are to learn if TAK-919 can protect people from Covid-19 and to check for side effects from TAK-919. At the first visit, the study doctor will check if each person can take part. Those who can take part will be chosen for 1 of 2 treatments by chance. Participants will either receive an injection of TAK-919 or a placebo in their arm. In this study, a placebo will look like the TAK-919 vaccine but will not have any medicine in it. 3 times as many participants will receive TAK-919 than placebo. Participants will receive 2 injections of TAK-919 or placebo, 28 days apart. Participants will be asked to record their temperature and any medical problems in an electronic diary for up to 7 days after each injection. During the study, participants will visit the clinic for regular check-ups, blood tests, and sometimes for nose swab samples. When all participants have visited their clinic 28 days after their 2nd injection, the study sponsor (Takeda) will check how many participants have made enough antibodies to protect them against Covid-19. The participants will stay in the study for up to 12 months after they have had their 2nd injection. During this time, the study doctors will continue to check how many participants have made enough antibodies to protect them against Covid-19. Also, they will check if participants have any more side effects from TAK-919 or the placebo.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Jan 2021

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 18, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 21, 2020

Completed
17 days until next milestone

Study Start

First participant enrolled

January 7, 2021

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 22, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 22, 2022

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

May 3, 2023

Completed
Last Updated

May 3, 2023

Status Verified

February 1, 2023

Enrollment Period

1.1 years

First QC Date

December 18, 2020

Results QC Date

February 20, 2023

Last Update Submit

April 10, 2023

Conditions

Outcome Measures

Primary Outcomes (14)

  • Percentage of Participants With Solicited Local Adverse Events (AEs) for Six Subsequent Days Following First Vaccination

    Solicited local AEs were pre-defined local (at the injection site) AEs for which participants were specifically questioned and which were noted by participants in their diary for six subsequent days following first vaccination. Solicited local AEs included injection site pain, erythema/redness, swelling, induration, and axillary (underarm) swelling or tenderness ipsilateral to the side of injection.

    Up to Day 7 (6 subsequent days after first vaccination on Day 1)

  • Percentage of Participants With Solicited Local AEs for Six Subsequent Days Following Second Vaccination

    Solicited local AEs were pre-defined local (at the injection site) AEs for which participants were specifically questioned and which were noted by participants in their diary for six subsequent days following second vaccination. Solicited local AEs included injection site pain, erythema/redness, swelling, induration, and axillary (underarm) swelling or tenderness ipsilateral to the side of injection.

    Up to Day 35 (6 subsequent days after second vaccination on Day 29)

  • Percentage of Participants With Solicited Systemic AEs for Six Subsequent Days Following First Vaccination

    Solicited systemic AEs were pre-defined AEs for which participants were specifically questioned and which were noted by participants in their diary for six subsequent days following first vaccination. Solicited systemic AEs included headache, fatigue, myalgia, arthralgia, nausea/ vomiting, chills, fever.

    Up to Day 7 (6 subsequent days after first vaccination on Day 1)

  • Percentage of Participants With Solicited Systemic AEs for Six Subsequent Days Following Second Vaccination

    Solicited systemic AEs were pre-defined AEs for which participants were specifically questioned and which were noted by participants in their diary for six subsequent days following second vaccination. Solicited systemic AEs included headache, fatigue, myalgia, arthralgia, nausea/ vomiting, chills, fever.

    Up to Day 35 (6 subsequent days after second vaccination on Day 29)

  • Percentage of Participants With Unsolicited AEs for 28 Days Following First Vaccination

    Unsolicited AEs were all AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary.

    Up to Day 29 (28 days after first vaccination on Day 1)

  • Percentage of Participants With Unsolicited AEs for 28 Days Following Second Vaccination

    Unsolicited AEs were all AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary.

    Up to Day 57 (28 days after second vaccination on Day 29)

  • Percentage of Participants With Serious Adverse Events (SAEs) Until Day 57

    Only unsolicited SAEs data was planned to be collected and assessed for the assessment of this outcome measure (OM) and solicited SAE was out of the scope of the assessment. Unsolicited SAEs were those AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary. Percentage of participants with unsolicited SAEs until Day 57 was reported in this outcome measure.

    Day 1 up to Day 57

  • Percentage of Participants With Medically-Attended Adverse Events (MAAEs) Until Day 57

    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. Only unsolicited MAAEs data was planned to be collected and assessed for the assessment of this OM and solicited MAAEs was out of the scope of the assessment. Unsolicited MAAEs were those AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary. Percentage of participants with unsolicited MAAEs until Day 57 was reported in this outcome measure.

    Day 1 up to Day 57

  • Percentage of Participants With Any AE Leading to Discontinuation of Vaccination

    Only unsolicited AE leading to discontinuation of vaccination data was planned to be collected and assessed for the assessment of this OM and solicited AE leading to discontinuation of vaccination was out of the scope of the assessment. Unsolicited AEs were those AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary. Percentage of participants with any unsolicited AE leading to discontinuation of vaccination was reported in this outcome measure.

    Day 1 up to Day 57

  • Percentage of Participants With Any AE Leading to Participant's Withdrawal From the Trial Until Day 57

    Only unsolicited AE leading to participant's withdrawal data was planned to be collected and assessed for the assessment of this OM and solicited AE leading to participant's withdrawal was out of the scope of the assessment. Unsolicited AEs were those AEs that were not pre-defined for which the participant is not specifically questioned in the participant diary. Percentage of participants with any unsolicited AE leading to participant's withdrawal from the trial until Day 57 was reported in this outcome measure.

    Day 1 up to Day 57

  • Percentage of Participants With Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Infection Until Day 57

    Day 1 up to Day 57

  • Geometric Mean Titers (GMT) of Serum Binding Antibody (bAb) Against SARS-CoV-2 on Day 57

    GMT was the immunogenicity outcome expressed as reciprocal antibody titer with average for each group. Titer values measured as below lower limit of quantification (LLOQ) were imputed to a value that is half of the LLOQ. Titer values measured as above upper limit of quantification (ULOQ) were imputed at the ULOQ value. LLOQ=1 and ULOQ= 2052. GMT of serum bAb against SARS-CoV-2 was measured by ligand-binding assay specific to the SARS-CoV-2 spike (S) protein.

    At Day 57

  • Geometric Mean Fold Rise (GMFR) of Serum bAb Against SARS-CoV-2 on Day 57

    The 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 study intervention. GMFR of serum bAb against SARS-CoV-2 was measured by ligand-binding assay specific to the SARS-CoV-2 S protein.

    At Day 57

  • Seroconversion Rate (SCR) of Serum bAb Against SARS-CoV-2 on Day 57

    SCR was defined as percentage of participants with a change from below limit of detection (LOD) or LLOQ to equal to or above LOD or LLOQ, OR, greater than or equal to (\>=) 4-fold rises from baseline. LLOQ= 1, ULOQ= 2052. Baseline was defined as the last measurement taken before the first dose of study intervention. SCR of serum bAb against SARS-CoV-2 was measured by ligand-binding assay specific to the SARS-CoV-2 S protein.

    At Day 57

Secondary Outcomes (10)

  • Percentage of Participants With SAE Throughout the Trial

    Day 1 up to Day 394

  • Percentage of Participants With MAAEs Throughout the Trial

    Day 1 up to Day 394

  • Percentage of Participants With Any AE Leading to Participant's Withdrawal From the Trial From the Day of Vaccination Throughout the Trial

    Day 1 up to Day 394

  • Percentage of Participants With SARS-CoV-2 Infection Throughout the Trial

    Day 1 up to Day 394

  • GMT of Serum bAb Against SARS-CoV-2 on Days 29, 43, 209 and 394

    At Days 29, 43, 209 and 394

  • +5 more secondary outcomes

Study Arms (2)

TAK-919

EXPERIMENTAL

TAK-919 0.5 mL, intramuscular injection in the upper arm

Biological: TAK-919

Placebo

PLACEBO COMPARATOR

TAK-919 Matching Placebo, intramuscular injection in the upper arm

Biological: Placebo

Interventions

TAK-919BIOLOGICAL

TAK-919 intramuscular injection

TAK-919
PlaceboBIOLOGICAL

Placebo intramuscular injection

Placebo

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthy Japanese male and female participants.
  • Participants who understand and are willing to comply with trial procedures and are available for the duration of follow up.

You may not qualify if:

  • Participants who received any other SARS-CoV-2 or other experimental novel coronavirus vaccine prior to the trial.
  • Participants who have close contact of anyone known to have COVID-19 within 30 days prior to vaccine administration.
  • Participants who were tested positive for SARS-CoV-2 prior to the trial or on the test before the vaccination.
  • Participants who are on current treatment with other investigational agents for prophylaxis of COVID 19.
  • Participants who traveled outside of Japan in the 30 days prior to the trial participation.
  • Participants with a clinically significant active infection (as assessed by the Investigator) or oral temperature \>= 38 degree Celsius within 3 days of the vaccination.
  • Participants with a known hypersensitivity or allergy to any of the IMP components.
  • Participants with any illness or history of any illness that, in the opinion of the Investigator, might interfere with the results of the trial or pose additional risk to the participants due to participation in the trial.
  • Participants with known or suspected impairment/alteration of immune function, including history of any autoimmune disease or neuro-inflammatory disease.
  • Abnormalities of splenic or thymic function.
  • Participants with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
  • Participants with any serious chronic or progressive disease (eg, neoplasm, insulin dependent diabetes, cardiac, renal, or hepatic disease).
  • Participants with BMI \>= 30 kg/m\^2 (BMI=weight in kg/height in meters\^2).
  • Participants participating in any clinical trial with another investigational product within 30 days prior to the vaccination or intend to participate in another clinical trial at any time during the conduct of this trial.
  • Participants who received or plan to receive any other vaccines within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to trial dose administration.
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Sumida Hospital

Sumida-ku, Tokyo, Japan

Location

PS Clinic

Fukuoka, Japan

Location

Related Publications (1)

  • Masuda T, Murakami K, Sugiura K, Sakui S, Philip Schuring R, Mori M. A phase 1/2 randomised placebo-controlled study of the COVID-19 vaccine mRNA-1273 in healthy Japanese adults: An interim report. Vaccine. 2022 Mar 18;40(13):2044-2052. doi: 10.1016/j.vaccine.2022.02.030. Epub 2022 Feb 8.

Related Links

MeSH Terms

Conditions

COVID-19

Interventions

2019-nCoV Vaccine mRNA-1273

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

mRNA VaccinesNucleic Acid-Based VaccinesVaccines, SyntheticRecombinant ProteinsProteinsAmino Acids, Peptides, and ProteinsVaccinesBiological ProductsComplex MixturesCOVID-19 VaccinesViral VaccinesAntigensBiological Factors

Results Point of Contact

Title
Study Director
Organization
Takeda

Study Officials

  • Study Director

    Takeda

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 18, 2020

First Posted

December 21, 2020

Study Start

January 7, 2021

Primary Completion

February 22, 2022

Study Completion

February 22, 2022

Last Updated

May 3, 2023

Results First Posted

May 3, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will share

Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Access Criteria
IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
More information

Locations