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Fever After Simultaneous Versus Sequential Vaccination in Young Children

A Prospective, Randomized, Open-label Clinical Trial to Assess Fever Following Simultaneous Versus Sequential Administration of PCV13, DTaP Vaccine and IIV in Young Children

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03165981
Enrollment
221
Registered
2017-05-24
Start date
2017-08-25
Completion date
2018-01-15
Last updated
2024-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fever After Vaccination, Fever, Febrile Seizure

Keywords

Influenza vaccine, fever following vaccination, PCV13 vaccine, DTaP vaccine, pneumococcal vaccine

Brief summary

A prospective, randomized open-label clinical trial that will be conducted during the 2017-2018 influenza season. During the 2017-2018 season, approximately 280 children will be enrolled at Duke University Medical Center and Kaiser Permanente Northern California. Eligible children will be randomized to receive simultaneous or sequentially administered US licensed PCV13, US-licensed DTaP vaccine, and US-licensed inactivated influenza vaccine (IIV). Children in the simultaneous group will receive PCV13, DTaP, and IIV vaccines at Visit 1, and then return for a health education visit without vaccination about 2 weeks later (Visit 2). Children in the sequential group will receive both PCV13 and DTaP without IIV at Visit 1, and then will receive IIV and health education about 2 weeks later (Visit 2). Parents will record the occurrence of fever, solicited adverse events, medical care utilization, and receipt of antipyretics over 8 days following Visit 1 and Visit 2. In addition, febrile seizures and serious adverse events will be recorded for the entire study period (from enrollment through 8 days following the Visit 2) as determined through parental report and chart review. Parental perceptions about their child's vaccine schedule will be assessed on the 8th day following Visit 2.

Interventions

BIOLOGICALPCV13

ACIP Recommended vaccine

BIOLOGICALDTaP

ACIP Recommended vaccine

BIOLOGICALIIV

ACIP Recommended vaccine

Sponsors

Centers for Disease Control and Prevention
CollaboratorFED
Kaiser Permanente
CollaboratorOTHER
Duke University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Months to 16 Months
Healthy volunteers
Yes

Inclusion criteria

1. 12 through 16 months of age (i.e. from the 1-year birthday until the day before 17 months of age) at the time of vaccination 2. Stable health as determined by investigator's clinical examination and assessment of child's medical history 3. Has received all immunizations recommended by Advisory Committee for Immunization Practices (ACIP) during the first year of life with the exception of rotavirus and influenza vaccines. 4. The parent(s)/ legally authorized representative(s) LAR(s) intend for the child to receive DTaP and PCV13 in addition to this season's IIV 5. The parent(s)/LAR(s) must be willing and capable of providing permission for their child to participate through the written informed consent process 6. The parent(s)/LAR(s) must be able to comply with the requirements of the protocol (e.g., completion of the memory aid (either electronic or paper diary), return for follow-up visits, respects intervals between the visits and have telephone access. 7. The parent(s)/LAR(s) must be English speaking 8. The parent(s)/LAR(s) must agree to sign a medical release for the child so that study personnel may obtain medical information about the child's health (if needed)

Exclusion criteria

1. History of any seizure (including febrile seizure) in the child or a febrile seizure in a first degree relative 2. Has already completed influenza vaccination during the current season per ACIP recommendations 3. Receipt of more than 3 previous doses of DTaP 4. Received the 3rd dose of DTaP within 6 months of Visit 1 5. Receipt of more than 3 previous doses of PCV13 6. Received the 3rd dose of PCV13 within 8 weeks of Visit 1 7. History of a severe allergic reaction (e.g. anaphylaxis) to a previous dose of any influenza, diphtheria toxoid-, tetanus toxoid-, or pertussis-containing vaccine, or pneumococcal vaccine. 8. History of a severe allergic reaction (e.g., anaphylaxis) to any component (including egg protein) of any of the three vaccines used in this study; or a latex allergy. 9. History of Guillain-Barré syndrome within 6 weeks following a prior dose of influenza, DTaP, or tetanus toxoid containing vaccine 10. History of a progressive neurologic disorder 11. History of encephalopathy within 7 days of a previous pertussis-containing vaccine 12. History of collapse within 3 days after a prior dose of DTaP 13. Received any other licensed vaccines within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to Visit 1 14. Received an experimental/investigational agent (vaccine, drug, biologic, device, blood product, or medication) within 28 days prior to Visit 1, or expects to receive an experimental/investigational agent during the study period (up to 8 days after visit 2) 15. A moderate to severe acute illness within 72 hours of Visit 1 16. A reported temperature greater than or equal to 100.4°F (38.0°C) within 72 hours prior enrollment or a temperature (measured by temporal artery thermometer) greater than or equal to 100.4°F (38.0°C) at the time of enrollment 17. Receipt of an antipyretic medication (acetaminophen or ibuprofen) within 24 hours prior to enrollment 18. Parent(s)/LAR is planning to administer a prophylactic antipyretic or medication on the day of, and/or within 7 days following Visit 1 or Visit 2 19. Long term (at least 14 consecutive days) oral corticosteroids (prednisone 2 mg/kg/day or equivalent other glucocorticoid), any parenteral steroids, high-dose inhaled steroids (\>800 mcg/day of beclomethasone dipropionate or equivalent) or other immune-modifying drugs or immunosuppressants within the preceding 6 months prior to Visit 1 20. Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and or their provider's routine physical examination 21. Has an active neoplastic disease, a history of any hematologic malignancy, current bleeding disorder, or taking anticoagulants. 22. Unable to receive an intramuscular injection in the thigh 23. Any condition deemed by the investigator to place the child at increased risk as a result of their participation in the study 24. Any child or grandchild of a study investigator or study team member

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Fever Following Vaccination2 days post administrationProportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 1 and/or Visit 2.

Secondary

MeasureTime frameDescription
Number of Participants With Fever Visit 22 days post administrationProportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 2
Number of Participants With Grade 2 and/or 3 Fever Following Visit 12 days post administrationProportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 1. (Moderate/severe fever: ≥ 38.6°C or ≥ 101.4°F)
Number of Participants With Grade 2 and/or 3 Fever Following Visit 22 days post administrationProportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 2.
Number of Participants With Grade 2 and/or 3 Following Visit 1 and Visit 22 days post administrationProportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 1 and Visit 2 combined.
Duration of Fever - Visit 18 days post administrationAverage number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following Visit 1. Note: fever starting on day 1 or 2 could continue through day 8.
Number of Participants With Fever Visit 12 days post administrationProportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 1
Duration of Fever - Visit 1 and 2 Combined8 days post administrationAverage number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following and Visit 1 and Visit 2 combined. Note: fever starting on day 1 or 2 could continue through day 8.
Number of Participants With Medical Care Utilization - Visit 12 days post administrationProportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 1.
Number of Participants With Medical Care Utilization - Visit 22 days post administrationProportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 2.
Number of Participants With Medical Care Utilization - Visit 1 and 2 Combined2 days post administrationProportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 1 and Visit 2 combined.
Duration of Fever - Visit 28 days post administrationAverage number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following Visit 2. Note: fever starting on day 1 or 2 could continue through day 8.

Countries

United States

Participant flow

Participants by arm

ArmCount
Simultaneous Vaccination Arm
In the study arm, subjects will receive PCV13, DTaP and IIV vaccines during visit 1. Approximately 2 weeks later, subjects will receive a health education visit without vaccination during study visit 2. PCV13: ACIP Recommended vaccine DTaP: ACIP Recommended vaccine IIV: ACIP Recommended vaccine
99
Sequential Vaccination Arm
In the study arm, subjects will receive PCV13 and DTaP during study visit 1. Approximately 2 weeks later, subjects will receive the IIV vaccine during study visit 2. PCV13: ACIP Recommended vaccine DTaP: ACIP Recommended vaccine IIV: ACIP Recommended vaccine
107
Total206

Baseline characteristics

CharacteristicSimultaneous Vaccination ArmSequential Vaccination ArmTotal
Age, Continuous14.1 Months14.8 Months14.7 Months
Birth Weight in Pounds7.25 Pounds7.13 Pounds7.13 Pounds
Day Care
Full-time (4-5 days/weeks)
22 Participants34 Participants56 Participants
Day Care
None
60 Participants57 Participants117 Participants
Day Care
Part-time (3 or less/weeks)
17 Participants16 Participants33 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
21 Participants22 Participants43 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
78 Participants85 Participants163 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Gestational Age in Weeks39 Weeks39 Weeks39 Weeks
Insurance
Any Private
63 Participants84 Participants147 Participants
Insurance
None
18 Participants13 Participants31 Participants
Insurance
Public
18 Participants10 Participants28 Participants
Number of Children Living in Home2 Children2 Children2 Children
Race (NIH/OMB)
American Indian or Alaska Native
7 Participants9 Participants16 Participants
Race (NIH/OMB)
Asian
6 Participants11 Participants17 Participants
Race (NIH/OMB)
Black or African American
10 Participants6 Participants16 Participants
Race (NIH/OMB)
More than one race
18 Participants19 Participants37 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants2 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
6 Participants3 Participants9 Participants
Race (NIH/OMB)
White
52 Participants57 Participants109 Participants
Receipt of 1st or Only Dose of Influenza Vaccine for the Season90 Participants102 Participants192 Participants
Receipt of 2nd Dose of Influenza Vaccine for the Season9 Participants5 Participants14 Participants
Receipt of Concomitant Vaccine87 Participants98 Participants185 Participants
Region of Enrollment
United States
99 participants107 participants206 participants
Sex: Female, Male
Female
48 Participants55 Participants103 Participants
Sex: Female, Male
Male
51 Participants52 Participants103 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 990 / 107
other
Total, other adverse events
0 / 990 / 107
serious
Total, serious adverse events
0 / 991 / 107

Outcome results

Primary

Number of Participants With Fever Following Vaccination

Proportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 1 and/or Visit 2.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Fever Following Vaccination8 Participants
Sequential Vaccination ArmNumber of Participants With Fever Following Vaccination10 Participants
p-value: 0.758895% CI: [0.36, 2.1]Mantel Haenszel
Secondary

Duration of Fever - Visit 1

Average number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following Visit 1. Note: fever starting on day 1 or 2 could continue through day 8.

Time frame: 8 days post administration

Population: Per Protocol Population

ArmMeasureValue (MEAN)
Simultaneous Vaccination ArmDuration of Fever - Visit 11.3 Fever Days
Sequential Vaccination ArmDuration of Fever - Visit 11.4 Fever Days
p-value: 0.848Wilcoxon (Mann-Whitney)
Secondary

Duration of Fever - Visit 1 and 2 Combined

Average number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following and Visit 1 and Visit 2 combined. Note: fever starting on day 1 or 2 could continue through day 8.

Time frame: 8 days post administration

Population: Per Protocol Population

ArmMeasureValue (MEAN)
Simultaneous Vaccination ArmDuration of Fever - Visit 1 and 2 Combined1.3 Fever Days
Sequential Vaccination ArmDuration of Fever - Visit 1 and 2 Combined1.6 Fever Days
p-value: 1Wilcoxon (Mann-Whitney)
Secondary

Duration of Fever - Visit 2

Average number of consecutive days of fever (temperature ≥ 38.0°C or ≥ 100.4°F) per subject for fever starting on day 1 or 2 following Visit 2. Note: fever starting on day 1 or 2 could continue through day 8.

Time frame: 8 days post administration

Population: Per Protocol Population

ArmMeasureValue (MEAN)
Simultaneous Vaccination ArmDuration of Fever - Visit 20 Fever Days
Sequential Vaccination ArmDuration of Fever - Visit 23 Fever Days
Secondary

Number of Participants With Fever Visit 1

Proportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 1

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Fever Visit 18 Participants
Sequential Vaccination ArmNumber of Participants With Fever Visit 19 Participants
p-value: 0.941295% CI: [0.39, 2.4]Mantel Haenszel
Secondary

Number of Participants With Fever Visit 2

Proportion of children with fever (temperature ≥ 38.0°C or ≥ 100.4°F) on day 1 and/or day 2 following Visit 2

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Fever Visit 20 Participants
Sequential Vaccination ArmNumber of Participants With Fever Visit 21 Participants
p-value: 0.3408Mantel Haenszel
Secondary

Number of Participants With Grade 2 and/or 3 Fever Following Visit 1

Proportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 1. (Moderate/severe fever: ≥ 38.6°C or ≥ 101.4°F)

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Grade 2 and/or 3 Fever Following Visit 14 Participants
Sequential Vaccination ArmNumber of Participants With Grade 2 and/or 3 Fever Following Visit 15 Participants
p-value: 0.832595% CI: [0.24, 3.13]Mantel Haenszel
Secondary

Number of Participants With Grade 2 and/or 3 Fever Following Visit 2

Proportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 2.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Grade 2 and/or 3 Fever Following Visit 20 Participants
Sequential Vaccination ArmNumber of Participants With Grade 2 and/or 3 Fever Following Visit 21 Participants
p-value: 0.3408Mantel Haenszel
Secondary

Number of Participants With Grade 2 and/or 3 Following Visit 1 and Visit 2

Proportions of children with moderate/severe fever (Grade 2 and/or 3) on day 1 and/or day 2 following Visit 1 and Visit 2 combined.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Grade 2 and/or 3 Following Visit 1 and Visit 24 Participants
Sequential Vaccination ArmNumber of Participants With Grade 2 and/or 3 Following Visit 1 and Visit 26 Participants
p-value: 0.610195% CI: [0.21, 2.48]Mantel Haenszel
Secondary

Number of Participants With Medical Care Utilization - Visit 1

Proportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 1.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 10 Participants
Sequential Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 10 Participants
Secondary

Number of Participants With Medical Care Utilization - Visit 1 and 2 Combined

Proportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 1 and Visit 2 combined.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 1 and 2 Combined0 Participants
Sequential Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 1 and 2 Combined0 Participants
Secondary

Number of Participants With Medical Care Utilization - Visit 2

Proportion of children with medical care utilization (telephone call, medical office visit, emergency department visit, or hospital admission) for fever on day 1 and/or day 2 following Visit 2.

Time frame: 2 days post administration

Population: Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Simultaneous Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 20 Participants
Sequential Vaccination ArmNumber of Participants With Medical Care Utilization - Visit 20 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026