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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT05169905
Registration number
NCT05169905
Ethics application status
Date submitted
10/12/2021
Date registered
27/12/2021
Date last updated
7/04/2023
Titles & IDs
Public title
A Study to Evaluate the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Females From 9 to 49 Years of Age
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Scientific title
A Phase III, Randomized, Open-label, Active Vaccine-controlled Crossover Study to Evaluate the Reactogenicity, Safety and Immune Response of Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Girls From 9 to 17 Years of Age, and in Non-pregnant Adult Women From 18 to 49 Years of Age
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Secondary ID [1]
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2021-004003-41
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Secondary ID [2]
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217354
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Respiratory Syncytial Virus Infections
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Condition category
Condition code
Respiratory
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Other respiratory disorders / diseases
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Infection
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Other infectious diseases
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Infection
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Studies of infection and infectious agents
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Combination Product - RSV MAT vaccine
Combination Product - dTpa vaccine
Experimental: RSV_dTpa-P Group - Healthy non-pregnant girls 9-17 years of age received a single dose of RSV MAT vaccine at Day 1 and were scheduled to receive a single dose of dTpa vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). Participants who were enrolled and were due to receive the dTpa vaccine at Day 31, did no longer receive the dTpa as part of this study, but they were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization.
Experimental: dTpa_RSV-P Group - Healthy non-pregnant girls 9-17 years of age were scheduled to receive a single dose of dTpa vaccine at Day 1 and a single dose of RSV MAT vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration), but there were no participants assigned to this study group, and hence, there was no vaccine administered in this study group.
Experimental: RSV_dTpa-A Group - Healthy non-pregnant adult women 18-49 years of age received a single dose of RSV MAT vaccine at Day 1 and were scheduled to receive a single dose of dTpa vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). Participants who were enrolled and were due to receive the dTpa vaccine at Day 31, did no longer receive the dTpa as part of this study, but they were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization.
Experimental: dTpa_RSV-A Group - Healthy non-pregnant adult women 18-49 years of age received a single dose of dTpa vaccine at Day 1 and were scheduled to receive a single dose of RSV MAT vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). RSV MAT vaccine was no longer administered to participants at Day 31.
Combination Product: RSV MAT vaccine
Single dose of the RSV MAT vaccine reconstituted with NaCl solution was planned to be administered intramuscularly, in the non-dominant arm, at Day 1 or at Day 31, depending on the vaccination schedule.
RSV MAT vaccine was no longer administered to participants at Day 31. No vaccine was administered in the dTpa_RSV-P Group, since there were no participants assigned to it.
Combination Product: dTpa vaccine
Single dose of the dTpa vaccine was planned to be administered intramuscularly, in the non-dominant arm, at Day 1 or at Day 31, depending on the vaccination schedule.
Two formulations of dTpa vaccine are licensed in the US and outside of the US (ex-US), respectively. dTpa-US formulation was administered to participants in centers located in the US, while dTpa-ex-US formulation was planned to be administered to participants in centers ex-US. The dTpa-ex-US formulation was not applicable in this study anymore as no non-US sites were initiated before the decision to stop the study.
The participants in RSV_dTpa-P and RSV_dTpa-A study groups were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization.
No vaccine was administered in the dTpa_RSV-P Group, since there were no participants assigned to it.
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Intervention code [1]
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Combination Product
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Number of Participants Reporting Any Serious Adverse Events (SAEs)
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Assessment method [1]
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An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results in abnormal pregnancy outcomes. Any is defined as the occurrence of the symptom regardless of intensity grade or relationship to vaccination.
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Timepoint [1]
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During the entire study period (from Day 1 up to Day 181)
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Primary outcome [2]
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Number of Participants Reporting Adverse Events (AEs)/SAEs Leading to Study Withdrawal
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Assessment method [2]
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An AE is any untoward medical occurrence, symptom, or disease in a clinical study participant that is temporally associated with the study intervention. The AE may or may not be considered related to the study intervention.
An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results in abnormal pregnancy outcomes.
A participant is considered to have withdrawn from the study if no new study procedure has been performed or no new information has been collected for him/her since the date of withdrawal/last contact.
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Timepoint [2]
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During the entire study period (from Day 1 up to Day 181)
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Primary outcome [3]
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Number of Participants Reporting Any Solicited Administration Site Events
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Assessment method [3]
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Assessed solicited administration site events include pain, erythema and swelling. Any pain = occurrence of the symptom regardless of intensity grade. Any erythema and swelling = symptom reported with a surface diameter lower than or equal to 20 millimeters.
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Timepoint [3]
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During the 7 days follow-up period post-Dose 1
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Primary outcome [4]
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Number of Participants Reporting Any Solicited Systemic Events
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Assessment method [4]
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Assessed solicited systemic events include fatigue, headache, gastrointestinal (GI) symptoms (nausea, vomiting, diarrhea, abdominal pain) and fever. The preferred location for measuring temperature is the oral cavity. Fever is defined as temperature equal to or above (=) 38.0 °C/100.4°F. Any is defined as the occurrence of the symptom regardless of intensity grade.
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Timepoint [4]
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During the 7 days follow-up period post-Dose 1
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Primary outcome [5]
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Number of Participants Reporting Any Unsolicited AEs
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Assessment method [5]
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An unsolicited AE is an event reported in addition to those solicited during the clinical study. Also, any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms is reported as an unsolicited adverse event. Any is defined as the occurrence of the unsolicited AE regardless of intensity grade or relationship to vaccination.
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Timepoint [5]
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During the 30 days follow-up period post-Dose 1
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Primary outcome [6]
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Number of Participants Reporting SAEs and Medically Attended Adverse Events (MAEs)
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Assessment method [6]
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An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results in abnormal pregnancy outcomes.
An MAE is an unsolicited AE for which the participants receive medical attention, defined as symptoms or illnesses requiring a hospitalization, or an emergency room visit, or visit to/by a health care provider.
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Timepoint [6]
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During the 30 days follow-up period post-Dose 1
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Primary outcome [7]
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Number of Participants Reporting AEs/SAEs/MAEs Leading to Study Withdrawal
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Assessment method [7]
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An AE is any untoward medical occurrence, symptom, or disease in a clinical study participant that is temporally associated with the study intervention. The AE may or may not be considered related to the study intervention.
An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results in abnormal pregnancy outcomes.
An MAE is an unsolicited AE for which the participants received medical attention defined as symptoms or illnesses requiring a hospitalization, or an emergency room visit, or visit to/by a health care provider.
A participant is considered to have withdrawn from the study if no new study procedure has been performed or no new information has been collected for him/her since the date of withdrawal/last contact.
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Timepoint [7]
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During the 30 days follow-up period post-Dose 1
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Secondary outcome [1]
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RSV-A Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 1
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Assessment method [1]
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RSV-A neutralizing antibody titer expressed in Estimated Dose: serum dilution giving a 60% reduction of the signal compared to a control without serum (ED60) is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [1]
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At pre-dosing (Day 1)
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Secondary outcome [2]
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RSV-A Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 31
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Assessment method [2]
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RSV-A neutralizing antibody titer expressed in ED60 is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [2]
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At 30 days post-RSV MAT vaccine administration (Day 31)
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Secondary outcome [3]
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RSV-B Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 1
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Assessment method [3]
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RSV-B neutralizing antibody titer expressed in ED60 is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [3]
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At pre-dosing (Day 1)
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Secondary outcome [4]
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RSV-B Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 31
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Assessment method [4]
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RSV-B neutralizing antibody titer expressed in ED60 is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [4]
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At 30 days post-RSV MAT vaccine administration (Day 31)
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Secondary outcome [5]
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RSV MAT Immunoglobulin G (IgG) Antibody Concentrations for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 1
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Assessment method [5]
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RSV MAT IgG antibody concentration expressed in ELISA units per milliliter (EU/mL) is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [5]
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At pre-dosing (Day 1)
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Secondary outcome [6]
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RSV MAT IgG Antibody Concentrations for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 31
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Assessment method [6]
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RSV MAT IgG antibody concentration expressed in EU/mL is presented for each participant who received the RSV MAT vaccine and was assigned to the respective group.
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Timepoint [6]
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At 30 days post-RSV MAT vaccine administration (Day 31)
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Eligibility
Key inclusion criteria
Healthy Non-pregnant Adult Women from 18-49 YOA
- Participants who, in the opinion of the investigator, can and will comply with the
requirements of the protocol.
- Written or witnessed/thumb printed informed consent obtained from the participant
prior to performance of any study-specific procedure.
- A healthy female participant, as established by medical history and clinical
examination, between and including 18 to 49 YOA at the time of the first study
intervention administration.
- Body mass index (based on participant's report) 17.0 to 39.9 kg/m^2, inclusive for
adult participants.
- Female participants of childbearing potential may be enrolled in the study, if the
participant:
- has practiced adequate contraception for 1 month prior to study intervention
administration, and
- has a negative pregnancy test on the day of study intervention administration,
and
- has agreed to continue adequate contraception during the entire treatment period
and for 1 month after completion of the study intervention administrations.
- Female participants of non-childbearing potential may be enrolled in the study.
Non-childbearing potential is defined as, current bilateral tubal ligation or
occlusion, hysterectomy, bilateral ovariectomy or post-menopause.
Healthy non-pregnant Girls from 9-17 YOA
- Participants and participants' parent(s)/Legally Acceptable Representative(s) (LAR),
who, in the opinion of the investigator, can and will comply with the requirements of
the protocol.
- Written or witnessed/thumb printed informed consent obtained from the
participant*/parent(s)/LAR(s) of the participant prior to performance of any
study-specific procedure.
- *Written informed consent obtained from parents/LARs and written informed assent
obtained from the participant if she is less than legal age. The legal age is
determined according to local regulations in each participating country.
- In case the legal age is achieved during the conduct of the study, an additional
written informed consent from the participant should be obtained at the time of
the legal age.
- A healthy female participant between and including 9 and 17 YOA at the time of the
first study intervention administration.
- Female participants of non-childbearing potential may be enrolled in the study.
Non-childbearing potential is defined as pre-menarche, current bilateral tubal
ligation or occlusion, hysterectomy, or bilateral ovariectomy.
- Body mass index by age between 5 percentile and 95 percentile (inclusive) for
pediatric participants.
- Female participants of childbearing potential may be enrolled in the study, if the
participant:
- has a negative pregnancy test on the day of study intervention administration,
and is abstinent during the entire treatment period and for 1 month before and
after completion of the study intervention administration series (and if so, this
is to be documented in the source documents at each vaccination visit)
- or has practiced adequate contraception for 1 month prior to study intervention
administration and has agreed to continue adequate contraception during the
entire treatment period and for 1 month after completion of the study
intervention administration series.
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Minimum age
9
Years
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Maximum age
49
Years
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Sex
Females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Medical conditions
- Any clinical condition that, in the opinion of the investigator, might pose additional
risk to the participant due to participation in the study.
- History of any reaction or hypersensitivity likely to be exacerbated by any component
of the study intervention(s).
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on
medical history and physical examination (no laboratory testing required).
- Current autoimmune disorder (based on medical history and physical examination), for
which the participant has received immune-modifying therapy within 6 months, before
study vaccination.
- Hypersensitivity to latex.
- Acute or chronic clinically significant abnormality or poorly controlled pre-existent
co-morbidities or any other clinical conditions, as determined by physical examination
or medical history that, in the opinion of the investigator, might pose additional
risk to the participant due to participation in the study.
- Significant or uncontrolled psychiatric illness.
- Documented human immunodeficiency virus (HIV)-positive participant.
- Any clinically significant* hematological parameter and/or biochemical laboratory
abnormality from the test requested by the investigator based on medical judgment
prior to enrolment
- *The investigator should use his/her clinical judgment to decide whether the test
is needed, and which abnormalities are clinically significant. If he/she decides
to run this test, the investigator will need to review the test results before
proceeding with the administration of the study vaccine.
- Lymphoproliferative disorder or malignancy within 5 years before study vaccination
(excluding effectively treated non-melanoma skin cancer).
Prior/Concomitant therapy
- Use of any investigational or non-registered product (drug, vaccine or medical device)
other than the study intervention(s) during the period beginning 30 days before the
first doses (Day -29 to Day 1), or their planned use during the study period.
- Planned administration/administration of a vaccine not foreseen by the study protocol
within the period starting 30 days before the first dose and ending 30 days after the
last dose of study intervention(s)* administration with the exception of any licensed
influenza vaccine which may be administered = 15 days before or after study
vaccinations (dTpa and RSV maternal vaccines).
- *In case emergency mass vaccination for an unforeseen public health threat (e.g.
a pandemic) is organized by public health authorities outside the routine
immunization program, the time period described above can be reduced if necessary
for that vaccine (if it is used according to the local governmental
recommendations and that the Sponsor is notified accordingly). Therefore,
COVID-19 vaccines will be allowed, when administered = 15 days before or after
study vaccinations (dTpa and RSV maternal vaccines).
- Administration of long-acting immune-modifying drugs at any time during the study
period (e.g. infliximab).
- Administration of immunoglobulins and/or any blood products or plasma derivatives
during the period starting 3 months before the administration of the first dose of
study intervention(s) or planned administration during the study period.
- Chronic administration (defined as more than 14 days in total) of immunosuppressants
or other immune-modifying drugs during the period starting 3 months prior to the first
study intervention dose(s) to 2 months after first vaccination. For corticosteroids,
this will mean prednisone equivalent =5 mg/day for adult participants/ =0.5 mg/kg/day.
Inhaled and topical steroids are allowed.
- Previous experimental vaccination against RSV.
- Boostrix (dTpa) administration for which the vaccination is not aligned with the local
recommendations for dTap vaccination or not aligned with the locally approved Boostrix
(dTpa) prescribing information.
Prior/Concurrent clinical study experience
• Concurrently participating in another clinical study, at any time during the study
period, in which the participant has been or will be exposed to an investigational or a
non-investigational intervention (drug/invasive medical device).
Other exclusions
- Pregnant or lactating female.
- Female planning to become pregnant or planning to discontinue contraceptive
precautions.
- Alcoholism or substance use disorder within the past 24 months based on the presence
of two or more of the following abuse criteria: hazardous use, social/interpersonal
problems related to use, neglected major roles to use, withdrawal tolerance, use of
larger amounts or longer, repeated attempts to quit or control use, much time spent
using, physical or psychological problems related to use, activities given up to use,
craving.
- Any study personnel or their immediate dependents, family, or household members.
- Child in care.
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Crossover
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
2/02/2022
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
3/08/2022
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Sample size
Target
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Accrual to date
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Final
9
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Recruitment in Australia
Recruitment state(s)
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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Florida
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Country [2]
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United States of America
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State/province [2]
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Texas
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
GlaxoSmithKline
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this study was to evaluate the reactogenicity, safety and immune response of a
single intramuscular dose of the respiratory syncytial virus maternal (RSV MAT) vaccine in
healthy non-pregnant girls 9-17 years of age (YOA) compared to non-pregnant adult women 18-49
YOA. The combined reduced-antigen-content diphtheria, tetanus and acellular pertussis (dTpa)
vaccine was planned to be used as an active control for safety and reactogenicity evaluation.
Following a recommendation from the Independent Data Monitoring Committee of NCT04605159 (RSV
MAT 009), GSK made the decision to stop enrolment and vaccination in this study. Enrolled
study participants were monitored as part of the study until study completion.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT05169905
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Trial related presentations / publications
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Public notes
This record is viewable in the ANZCTR as it had previously listed Australia and/or New Zealand as a recruitment site, however these sites have since been removed
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Contacts
Principal investigator
Name
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GSK Clinical Trials
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Address
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GlaxoSmithKline
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Phone
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Fax
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Email
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT05169905
Download to PDF