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Fluarix/ FluLaval/ Fluarix Quadrivalent/ FluLaval Quadrivalent Vaccine Pregnancy Registry

Fluarix/ FluLaval/ Fluarix Quadrivalent/ FluLaval Quadrivalent Pregnancy Registry: a Prospective, Exploratory, Cohort Study to Detect and Describe Abnormal Pregnancy Outcomes in Women Intentionally or Unintentionally Vaccinated With Fluarix or Fluarix Quadrivalent or FluLaval or FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding Conception.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02148211
Enrollment
507
Registered
2014-05-28
Start date
2014-06-01
Completion date
2019-05-31
Last updated
2020-06-12

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

Conditions

Influenza

Keywords

Fluarix Quadrivalent, Fluarix, FluLaval, FluLaval Quadrivalent, Pregnancy Registry, Pregnancy outcome

Brief summary

The purpose of this pregnancy registry study is to detect and describe abnormal pregnancy outcomes in women intentionally or unintentionally vaccinated with any of GlaxoSmithKline (GSK) Biologicals' seasonal Inactivated Influenza Vaccines (sIIVs): Fluarix, FluLaval, Fluarix Quadrivalent and FluLaval Quadrivalent.

Detailed description

This study is a transition of existing ongoing pregnancy registries for Fluarix/ FluLaval/Fluarix Quadrivalent/ FluLaval Quadrivalent into one post-authorization safety study (PASS). Pregnancy outcome data will be collected using questionnaires within 2 months of the estimated date of delivery (EDD) and approximately 6 months and 12 months after the EDD (for all live births) to ascertain the presence of birth defects not diagnosed before, from Q2 2014 to Q2 2019. The intent of the Registry is to prospectively collect data such as vaccination with GSK sIIVs during pregnancy or within 28 days preceding conception, potential confounding factors (such as exposure to other medications) and information related to the outcome of the pregnancy.

Interventions

OTHERData collection

Initial and follow-up data was collected using questionnaires.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
Yes

Inclusion criteria

A subject will be included in the Registry if all of the following criteria are met: * Exposure to GSK sIIVs occurs during pregnancy or within 28 days preceding conception. * Subject is a US resident. * A HCP is identified (name, address and phone number). * Subject can be identified (by GSK or HCP). Data from registered subjects will be included in the analyses if the following criterion is met: • Pregnancy is ongoing and the outcome is unknown at the time of initial report.

Exclusion criteria

Data from registered subjects will not be included in the analyses if the following criterion is met: • Outcome of pregnancy is known at the time of initial report. Types of known outcomes include prenatal testing reports in which the results are abnormal or outside the reference range, indicating possible abnormality in the fetus.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionData collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)Exposures and outcomes were stratified by trimester of exposure: first (1st), second (2nd), third (3rd) and unknown trimester (Tr?) multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated based on the date of the last menstrual period. The 2nd trimester was considered to begin at week 14 and the 3rd trimester begun at week 28. The presence or absence of birth defects or other abnormalities was evaluated within each of the preceding outcome categories. Ongoing = subject still pregnant at the time of last contact. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020. Unknown = unknown outcome at the time of last contact.
Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionData collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Results were presented for the following categories: Ongoing, Live infants without congenital anomalies (Live infants without CA.); Spontaneous abortions with no apparent congenital anomalies (Sp. abortions with no ACA); Spontaneous abortions with congenital anomalies (Sp. abortions with CA). One subject had FluLaval Quadrivalent and Fluarix Quadrivalent listed as vaccine used. Therefore, same case was included in the respective table of each product in Live infants without CA, 3rd Tr. category. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020.
Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding ConceptionData collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Unknown = unknown outcome at the time of last contact.
Number of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionData collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Results were presented for the following categories: Ongoing, Live infants without CA; Live infants with CA; Sp. abortions with no ACA; Sp. abortions with CA; Stillbirth with no ACA. Unknown = unknown pregnancy outcome at the time of last contact. One subject had FluLaval Quadrivalent and Fluarix Quadrivalent listed as vaccine used. Therefore, same case was included in the respective table of each product in Live infants without CA, 3rd Tr. category. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020.
Number of Subjects Reported With Unsolicited Adverse Events (AEs)Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product during the clinical study. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
Number of Subjects Reported With Serious Adverse Events (SAEs)Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Countries

United States

Participant flow

Participants by arm

ArmCount
Exposure Group
Pregnant women, vaccinated with any of the 4 GSK seasonal Inactivated Influenza Vaccine(s) (GSK sIIVs): Fluarix/ FluLaval/Fluarix Quadrivalent /FluLaval Quadrivalent during pregnancy or within 28 days preceding conception.
507
Total507

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up352

Baseline characteristics

CharacteristicExposure Group
Age, Customized
≤ 18
4 Participants
Age, Customized
> 18 and < 64
329 Participants
Age, Customized
Age not specified
171 Participants
Age, Customized
Not applicable
3 Participants
Race/Ethnicity, Customized— Participants
Sex: Female, Male
Female
507 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 507
other
Total, other adverse events
507 / 507
serious
Total, serious adverse events
9 / 507

Outcome results

Primary

Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding Conception

Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Unknown = unknown outcome at the time of last contact.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)

Population: Analysis was performed on pregnant women vaccinated with Fluarix vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study, and who completed the study period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding ConceptionUnknown, Tr?1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 2nd Tr.0 Participants
Primary

Number of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding Conception

Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Results were presented for the following categories: Ongoing, Live infants without CA; Live infants with CA; Sp. abortions with no ACA; Sp. abortions with CA; Stillbirth with no ACA. Unknown = unknown pregnancy outcome at the time of last contact. One subject had FluLaval Quadrivalent and Fluarix Quadrivalent listed as vaccine used. Therefore, same case was included in the respective table of each product in Live infants without CA, 3rd Tr. category. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)

Population: Analysis was performed on pregnant women vaccinated with Fluarix Quadrivalent vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study, and who completed the study period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 2nd Tr.2 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 3rd Tr.4 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 3rd Tr.21 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants with CA, Tr?0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 1st Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionStillbirth with no ACA, 1st Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionStillbirth with no ACA, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionStillbirth with no ACA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 1st Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 1st Tr.5 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, Tr?15 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 1st Tr.15 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 2nd Tr.31 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, Tr?12 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants with CA, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants with CA, 2nd Tr.3 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants with CA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, Tr?0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, Tr?0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionStillbirth with no ACA, Tr?0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With Fluarix Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionUnknown, Tr?3 Participants
Primary

Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding Conception

Exposures and outcomes were stratified by trimester of exposure: first (1st), second (2nd), third (3rd) and unknown trimester (Tr?) multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated based on the date of the last menstrual period. The 2nd trimester was considered to begin at week 14 and the 3rd trimester begun at week 28. The presence or absence of birth defects or other abnormalities was evaluated within each of the preceding outcome categories. Ongoing = subject still pregnant at the time of last contact. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020. Unknown = unknown outcome at the time of last contact.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)

Population: Analysis was performed on pregnant women vaccinated with FluLaval vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study and who completed the study period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 2nd Tr.3 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionOngoing, Tr?1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionUnknown, Tr?0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 1st Tr.2 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure, in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval During Pregnancy or Within 28 Days Preceding ConceptionUnknown, 3rd Tr.2 Participants
Primary

Number of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding Conception

Exposure and outcomes were stratified by trimester of exposure: 1st, 2nd, 3rd and Tr?; multiple exposures during a pregnancy were classified by the earliest trimester of exposure. The estimated gestational age at the time of vaccination was calculated as described in the first outcome. Results were presented for the following categories: Ongoing, Live infants without congenital anomalies (Live infants without CA.); Spontaneous abortions with no apparent congenital anomalies (Sp. abortions with no ACA); Spontaneous abortions with congenital anomalies (Sp. abortions with CA). One subject had FluLaval Quadrivalent and Fluarix Quadrivalent listed as vaccine used. Therefore, same case was included in the respective table of each product in Live infants without CA, 3rd Tr. category. Note: The remaining pregnancies were ongoing at the time of last contact by the study staff. No further information on the outcome of these pregnancies was available as of 1st April 2020.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019: for each subject, data was collected within 2 months of estimated date of delivery (EDD) and follow-up 6 and 12 months after EDD (for all live births)

Population: Analysis was performed on pregnant women vaccinated with FluLaval Quadrivalent vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study, and who completed the study period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 3rd Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, Tr?6 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 3rd Tr.10 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionOngoing, 2nd Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 1st Tr.4 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, 2nd Tr.6 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionLive infants without CA, Tr?3 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 1st Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with no ACA, Tr?1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 1st Tr.1 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 2nd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, 3rd Tr.0 Participants
Exposure GroupNumber of Subjects Reported With Exposure and Outcomes, Stratified by Trimester of Exposure in Pregnant Women Intentionally or Unintentionally Vaccinated With FluLaval Quadrivalent During Pregnancy or Within 28 Days Preceding ConceptionSp. abortions with CA, Tr?0 Participants
Primary

Number of Subjects Reported With Serious Adverse Events (SAEs)

Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019

Population: Analysis was performed on pregnant women vaccinated with GSK sIIV vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Serious Adverse Events (SAEs)9 Participants
Primary

Number of Subjects Reported With Unsolicited Adverse Events (AEs)

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product during the clinical study. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Time frame: Data collected for a minimum of 5 years starting from June 1, 2014 till May 31, 2019

Population: Analysis was performed on pregnant women vaccinated with GSK sIIV vaccine during pregnancy or within 28 days preceding conception who volunteered to take part of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Exposure GroupNumber of Subjects Reported With Unsolicited Adverse Events (AEs)507 Participants

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026