Trial Outcomes & Findings for Safety and Immunogenicity of the Malaria Vaccine, R21/MatrixM, in Healthy Thai Adults (NCT NCT05252845)

NCT ID: NCT05252845

Last Updated: 2025-07-03

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

127 participants

Primary outcome timeframe

From the date of the first vaccination to 28 days after the last vaccination (up to approximately 1 month)

Results posted on

2025-07-03

Participant Flow

Participant milestones

Participant milestones
Measure
R21/Matrix-M + DHA-PIP+PQ
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M Only
The R21/Matrix-M vaccine (IM injection) only R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Overall Study
STARTED
52
53
22
Overall Study
COMPLETED
48
48
20
Overall Study
NOT COMPLETED
4
5
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
R21/Matrix-M + DHA-PIP+PQ
n=52 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M Only
n=53 Participants
The R21/Matrix-M vaccine (IM injection) only R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2.
DHA-PIP+PQ Only
n=22 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Total
n=127 Participants
Total of all reporting groups
the heart rate-corrected QT (QTc) interval
416 Millisecond
n=52 Participants
415.5 Millisecond
n=53 Participants
416 Millisecond
n=22 Participants
416 Millisecond
n=127 Participants
Hemoglobin (Hb)
13.5 g/dL
STANDARD_DEVIATION 3.9 • n=52 Participants
12.9 g/dL
STANDARD_DEVIATION 1.2 • n=53 Participants
12.7 g/dL
STANDARD_DEVIATION 1.1 • n=22 Participants
13.1 g/dL
STANDARD_DEVIATION 2.6 • n=127 Participants
White Blood Cell (WBC)
6.4 10^3 cells/Microliter
n=52 Participants
7.1 10^3 cells/Microliter
n=53 Participants
6.7 10^3 cells/Microliter
n=22 Participants
6.5 10^3 cells/Microliter
n=127 Participants
Creatinine
0.7 mg/dL
n=52 Participants
0.7 mg/dL
n=53 Participants
0.7 mg/dL
n=22 Participants
0.7 mg/dL
n=127 Participants
Platelets
281.5 10^6 cells/Microliter
n=52 Participants
271 10^6 cells/Microliter
n=53 Participants
262.5 10^6 cells/Microliter
n=22 Participants
277 10^6 cells/Microliter
n=127 Participants
Age, Continuous
40.5 years
n=52 Participants
40 years
n=53 Participants
40.5 years
n=22 Participants
40 years
n=127 Participants
Sex: Female, Male
Female
33 Participants
n=52 Participants
38 Participants
n=53 Participants
17 Participants
n=22 Participants
88 Participants
n=127 Participants
Sex: Female, Male
Male
19 Participants
n=52 Participants
15 Participants
n=53 Participants
5 Participants
n=22 Participants
39 Participants
n=127 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Weight
64.3 Kg.
n=52 Participants
60.7 Kg.
n=53 Participants
64 Kg.
n=22 Participants
63.1 Kg.
n=127 Participants
Aspartate Aminotransferase (AST)
20.5 U/L
n=52 Participants
17.5 U/L
n=53 Participants
19.5 U/L
n=22 Participants
19 U/L
n=127 Participants
Alanine Aminotransferase (ALT)
19 U/L
n=52 Participants
15.5 U/L
n=53 Participants
14 U/L
n=22 Participants
17 U/L
n=127 Participants
Temperature
36.4 ºC
STANDARD_DEVIATION 0.4 • n=52 Participants
36.4 ºC
STANDARD_DEVIATION 0.3 • n=53 Participants
36.5 ºC
STANDARD_DEVIATION 0.4 • n=22 Participants
36.4 ºC
STANDARD_DEVIATION 0.3 • n=127 Participants

PRIMARY outcome

Timeframe: From the date of the first vaccination to 28 days after the last vaccination (up to approximately 1 month)

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=53 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=52 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=22 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Occurrence of Unsolicited Adverse Events (AEs), According to the Medical Dictionary for Regulatory Activities (MedRA) Classification.
6 Participants
17 Participants
4 Participants

PRIMARY outcome

Timeframe: During the whole study period, i.e. during a 6-month follow-up period from the receipt of first vaccination

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=53 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=52 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=22 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Occurrence of Serious Adverse Events (SAEs), According to the MedRA Classification.
0 Participants
1 Participants
1 Participants

PRIMARY outcome

Timeframe: Within 7 days of each vaccination.

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=53 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=52 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=22 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Occurrence of Solicited Adverse Event Within 7 Days of Each Vaccination
36 Participants
37 Participants
0 Participants

SECONDARY outcome

Timeframe: at study Month 1

Number of Participants with Seroconversions in C-Term

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=47 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=18 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in C-Term
38 Participants
41 Participants
0 Participants

SECONDARY outcome

Timeframe: at study Month 2

Number of Participants with Seroconversions in C-Term

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=19 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in C-Term
48 Participants
50 Participants
3 Participants

SECONDARY outcome

Timeframe: at study Month 3

Number of Participants with Seroconversions in C-Term

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=49 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=18 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in C-Term
48 Participants
49 Participants
3 Participants

SECONDARY outcome

Timeframe: at study Month 6

Number of Participants with Seroconversions in C-Term

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=48 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=18 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in C-Term
48 Participants
48 Participants
0 Participants

SECONDARY outcome

Timeframe: at study Month 1

Number of Participants with Seroconversions in NANP

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=50 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in NANP
50 Participants
49 Participants
1 Participants

SECONDARY outcome

Timeframe: at study Month2

Number of Participants with Seroconversions in NANP

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=50 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in NANP
49 Participants
50 Participants
1 Participants

SECONDARY outcome

Timeframe: at study Month 3

Number of Participants with Seroconversions in NANP

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in NANP
49 Participants
50 Participants
2 Participants

SECONDARY outcome

Timeframe: at study Month 6

Number of Participants with Seroconversions in NANP

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=48 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in NANP
48 Participants
48 Participants
0 Participants

SECONDARY outcome

Timeframe: at study Month 1

Number of Participants with Seroconversions in R21

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=50 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=47 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in R21
50 Participants
47 Participants
2 Participants

SECONDARY outcome

Timeframe: at study Month 2

Number of Participants with Seroconversions in R21

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=50 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in R21
49 Participants
50 Participants
3 Participants

SECONDARY outcome

Timeframe: at study Month 3

Number of Participants with Seroconversions in R21

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in R21
49 Participants
50 Participants
5 Participants

SECONDARY outcome

Timeframe: at study Month 6

Number of Participants With Seroconversions in R21

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=48 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=18 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in R21
48 Participants
48 Participants
3 Participants

SECONDARY outcome

Timeframe: at study Month 1

Number of Participants with Seroconversions in HBsAg

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=49 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in HBsAg
21 Participants
27 Participants
6 Participants

SECONDARY outcome

Timeframe: at study Month 2

Number of Participants with Seroconversions in HBsAg

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=48 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in HBsAg
23 Participants
20 Participants
2 Participants

SECONDARY outcome

Timeframe: at study Month 3

Number of Participants with Seroconversions in HBsAg

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=49 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=49 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in HBsAg
37 Participants
36 Participants
4 Participants

SECONDARY outcome

Timeframe: at study Month 6

Number of Participants with Seroconversions in HBsAg

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=48 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=48 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Number of Participants With Seroconversions in HBsAg
26 Participants
24 Participants
5 Participants

SECONDARY outcome

Timeframe: Study month 0

For Arms 1 and 3, Piperaquine levels (Cmax) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
177.5 ng/mL
Interval 125.0 to 213.5
139 ng/mL
Interval 114.0 to 185.0

SECONDARY outcome

Timeframe: Study month 0

For Arms 1 and 3, Piperaquine levels (AUC) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
30594.4 ng*h/mL
Interval 21015.2 to 36429.7
23151.6 ng*h/mL
Interval 19577.8 to 33561.8

SECONDARY outcome

Timeframe: Study month 1

For Arms 1 and 3, Piperaquine levels (Cmax) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
188.5 ng/mL
Interval 134.5 to 246.0
167.0 ng/mL
Interval 116.0 to 204.0

SECONDARY outcome

Timeframe: Study month 1

For Arms 1 and 3, Piperaquine levels (AUC) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
30672.1 ng*h/mL
Interval 20366.4 to 38646.6
24221.4 ng*h/mL
Interval 16812.2 to 31600.8

SECONDARY outcome

Timeframe: Study month 2

For Arms 1 and 3, Piperaquine levels (Cmax) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
28055.4 ng/mL
Interval 19286.0 to 42462.6
27652 ng/mL
Interval 21772.0 to 38006.9

SECONDARY outcome

Timeframe: Study month 2

For Arms 1 and 3, Piperaquine levels (AUC) following the administration of the antimalarials with or without vaccine

Outcome measures

Outcome measures
Measure
DHA-PIP+PQ Only
n=20 Participants
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M + DHA-PIP+PQ
n=50 Participants
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
DHA-PIP+PQ Only
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
For Arms 1 and 3, Piperaquine Levels Following the Administration of the Antimalarials With or Without Vaccine
28055.4 ng*h/mL
Interval 19286.0 to 42462.6
27652 ng*h/mL
Interval 21772.0 to 38006.9

Adverse Events

R21/Matrix-M + DHA-PIP+PQ

Serious events: 1 serious events
Other events: 38 other events
Deaths: 0 deaths

R21/Matrix-M Only

Serious events: 0 serious events
Other events: 39 other events
Deaths: 0 deaths

DHA-PIP+PQ Only

Serious events: 1 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
R21/Matrix-M + DHA-PIP+PQ
n=52 participants at risk
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M Only
n=53 participants at risk
The R21/Matrix-M vaccine (IM injection) only R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2.
DHA-PIP+PQ Only
n=22 participants at risk
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
Respiratory, thoracic and mediastinal disorders
Community-acquired pneumonia
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Eye disorders
Optic neuritis with neuromyelitis optica (NMO) right eye
0.00%
0/52 • 6 months
0.00%
0/53 • 6 months
4.5%
1/22 • Number of events 1 • 6 months

Other adverse events

Other adverse events
Measure
R21/Matrix-M + DHA-PIP+PQ
n=52 participants at risk
The R21/Matrix-M vaccine (IM injection) + co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2. DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
R21/Matrix-M Only
n=53 participants at risk
The R21/Matrix-M vaccine (IM injection) only R21/Matrix-M vaccination: R21/Matrix-M is the standard formulation of the vaccine (Once prepared, a standard dose of R21/Matrix-M contains approximately 5 µg of R21 antigen, in 0.5 mL of liquid adjuvant containing 50 µg MatrixM). The reconstituted vaccine will be administered by slow IM injection on Day 0 at Study Months 0, 1 and 2.
DHA-PIP+PQ Only
n=22 participants at risk
Co-formulated Dihydroartemisinin/Piperaquine tablets + one single low dose of Primaquine DHA-PIP: Dihydroartemisinin/piperaquine tablets for adult patients each contain 40 mg dihydroartemisinin and 320 mg piperaquine with a therapeutic dose range between 2-10 mg/kg/day dihydroartemisinin and 16-26 mg/kg/dose piperaquine. Participants will receive three rounds of antimalarial drugs - each round starting on the day of vaccination (Day 0) at Study Months 0, 1 and 2. Each round consists of three daily doses of co-formulated dihydroartemisinin/piperaquine on Day 0, 1, and 2. PQ: Each participant will receive a single low dose primaquine on the day of vaccination (Day 0) at Month 0, Month 1, and Month 2. One single low dose primaquine of approximately 0.25 mg/kg will be administered.
General disorders
Malaise
7.7%
4/52 • Number of events 4 • 6 months
5.7%
3/53 • Number of events 3 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Fever
26.9%
14/52 • Number of events 16 • 6 months
17.0%
9/53 • Number of events 9 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Hepatobiliary disorders
ALT increased
7.7%
4/52 • Number of events 4 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Gastrointestinal disorders
Diarrhea
26.9%
14/52 • Number of events 18 • 6 months
5.7%
3/53 • Number of events 4 • 6 months
0.00%
0/22 • 6 months
Nervous system disorders
Somnolence
1.9%
1/52 • Number of events 3 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Blood and lymphatic system disorders
Anemia
0.00%
0/52 • 6 months
0.00%
0/53 • 6 months
9.1%
2/22 • Number of events 2 • 6 months
Infections and infestations
Common cold
0.00%
0/52 • 6 months
3.8%
2/53 • Number of events 2 • 6 months
0.00%
0/22 • 6 months
Nervous system disorders
Dizziness
3.8%
2/52 • Number of events 2 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Ear and labyrinth disorders
Ear pain
1.9%
1/52 • Number of events 2 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Reproductive system and breast disorders
Early menstruation
1.9%
1/52 • Number of events 2 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
General disorders
Headache
34.6%
18/52 • Number of events 33 • 6 months
28.3%
15/53 • Number of events 17 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Upper respiratory tract infection
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Gastrointestinal disorders
Abdominal discomfort
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Hepatobiliary disorders
Alanine aminotransferase increased
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Immune system disorders
Allergic rhinitis
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Musculoskeletal and connective tissue disorders
Back pain
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
COVID-19 infection
0.00%
0/52 • 6 months
1.9%
1/53 • Number of events 1 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Community-acquired Pneumonia
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Cough
0.00%
0/52 • 6 months
0.00%
0/53 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Reproductive system and breast disorders
Dysmenorrhea
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
General disorders
Dysplasia
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Dysuria
0.00%
0/52 • 6 months
1.9%
1/53 • Number of events 1 • 6 months
0.00%
0/22 • 6 months
General disorders
Eyebrow pain
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Gastrointestinal disorders
Flatulence
0.00%
0/52 • 6 months
1.9%
1/53 • Number of events 1 • 6 months
0.00%
0/22 • 6 months
General disorders
Insomnia
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
General disorders
Lack of communication
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
General disorders
Lack of concentration
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Musculoskeletal and connective tissue disorders
Left/right jaw pain
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasm, Ovarian
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Skin and subcutaneous tissue disorders
Rash
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Skin and subcutaneous tissue disorders
Rash at right little finger
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Respiratory tract infection
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Rhinitis
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
Running nose
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Respiratory, thoracic and mediastinal disorders
Sputum
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Respiratory, thoracic and mediastinal disorders
Stuffy nose
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Skin and subcutaneous tissue disorders
Urticarial rash
0.00%
0/52 • 6 months
1.9%
1/53 • Number of events 1 • 6 months
0.00%
0/22 • 6 months
Gastrointestinal disorders
Anorexia
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Nervous system disorders
optic neuritis
0.00%
0/52 • 6 months
0.00%
0/53 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Infections and infestations
Sneeze
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Infections and infestations
viral infection
0.00%
0/52 • 6 months
0.00%
0/53 • 6 months
4.5%
1/22 • Number of events 1 • 6 months
Gastrointestinal disorders
Abdominal pain
1.9%
1/52 • Number of events 1 • 6 months
0.00%
0/53 • 6 months
0.00%
0/22 • 6 months
Gastrointestinal disorders
Nausea
25.0%
13/52 • Number of events 21 • 6 months
7.5%
4/53 • Number of events 5 • 6 months
0.00%
0/22 • 6 months
Gastrointestinal disorders
Vomiting
7.7%
4/52 • Number of events 6 • 6 months
1.9%
1/53 • Number of events 1 • 6 months
0.00%
0/22 • 6 months
General disorders
Fatigue
40.4%
21/52 • Number of events 42 • 6 months
32.1%
17/53 • Number of events 23 • 6 months
0.00%
0/22 • 6 months
Musculoskeletal and connective tissue disorders
Muscle pain
34.6%
18/52 • Number of events 26 • 6 months
43.4%
23/53 • Number of events 29 • 6 months
0.00%
0/22 • 6 months
Musculoskeletal and connective tissue disorders
Joint pain
13.5%
7/52 • Number of events 9 • 6 months
13.2%
7/53 • Number of events 12 • 6 months
0.00%
0/22 • 6 months
General disorders
Chills
19.2%
10/52 • Number of events 11 • 6 months
11.3%
6/53 • Number of events 8 • 6 months
0.00%
0/22 • 6 months
General disorders
Pain
48.1%
25/52 • Number of events 56 • 6 months
56.6%
30/53 • Number of events 56 • 6 months
0.00%
0/22 • 6 months
General disorders
Redness
5.8%
3/52 • Number of events 6 • 6 months
9.4%
5/53 • Number of events 7 • 6 months
0.00%
0/22 • 6 months
General disorders
Swelling
5.8%
3/52 • Number of events 3 • 6 months
18.9%
10/53 • Number of events 12 • 6 months
0.00%
0/22 • 6 months
General disorders
Bruising
7.7%
4/52 • Number of events 4 • 6 months
3.8%
2/53 • Number of events 2 • 6 months
0.00%
0/22 • 6 months

Additional Information

Professor Lorenz von Seidlein

Mahidol-Oxford Tropical Medicine Research Unit (MORU)

Phone: +66-(0)2-3549170

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place