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Immunogenicity and Safety of GBS-NN/NN2 in Pregnant Women

Primary Purpose

Group B Streptococcal Infection

Status
Active
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
GBS-NN/NN2 Vaccine
Placebo
Sponsored by
Minervax ApS
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Group B Streptococcal Infection

Eligibility Criteria

undefined - undefined (Child, Adult, Older Adult)FemaleAccepts Healthy Volunteers

Inclusion Criteria:

  1. Healthy pregnant woman above the legally defined age of consent at the time of screening
  2. Carrying a normal singleton pregnancy, and is at 21+0 to 23+6 weeks GA at the planned tme of the 1st vaccination, as established by first/second trimester ultrasound examination
  3. Properly informed about the study and has given written informed consent and parental consent (for her baby) in accordance with the International Conference on Harmonization Good Clinical Practice (ICH GCP) and local legislation prior to the first study intervention
  4. Grants access to her own and her baby's study related medical records

Exclusion Criteria

  1. Previous vaccination with an investigational Group B Streptococcus (GBS) Vaccine
  2. BMI of <17 or >40 at the time of screening
  3. Human immunodeficiency virus (HIV), hepatitis B virus (HBV) and/or hepatitis C virus (HCV) positive or positive for syphilis
  4. Knowingly carrying, at screening, a malformed or genetically abnormal foetus, incl. renal pelvis dilation, single umbilical artery (screening will be undertaken after the ultrasound conducted for the detection of anomalies)
  5. Chronic or pregnancy induced hypertension at screening, >1+ protein in urine regardless of blood pressure or 1+ protein in urine and hypertension
  6. Experienced a previous stillbirth prior to going into labour
  7. Gestational, type 1 or type 2 diabetes
  8. Potential placenta previa as per malformation ultrasound scan
  9. Rhesus negative and has anti-D antibodies or other potential harmful antibodies
  10. Known or suspected allergies to any components of the vaccine including to aluminium or aminoglycoside antibiotics, or an allergic reaction related to a previous vaccination
  11. Fever (temperature >37.9°C) on the day of receiving the first dose or an acute infection in the 7 days before the first dose (the first dose can be delayed if gestational age permits)
  12. Received systemic steroids in the 6 weeks before the first dose (inhaled and topical steroids are acceptable)
  13. Any lesion (including tattoos) at the planned injection site that will impair the assessment of the injection site
  14. Received immunosuppressive medication, chemotherapy or radiotherapy in the 24 weeks before the first dose
  15. Received blood, blood products, plasma derivatives or any immunoglobulin preparations in the 12 weeks before the first dose
  16. Anaemia, haemoglobin (<10 g/dL, 100 g/L, 6.2 mmol/L)
  17. Currently breast feeding
  18. Received any investigational medicinal product or vaccine in the 12 weeks or 5 half-lives before the first dose
  19. Received an approved vaccine within the 4 weeks before the first dose or expects to receive an approved vaccine during the study. Routine vaccinations recommended during pregnancy (e.g., pertussis and influenza) are permitted but every effort should be made to separate routine vaccinations from the trial vaccinations by at least 7 days.
  20. Known or suspected immunodeficiency or cancer (leukaemia, lymphoma), or a family history of congenital or hereditary immunodeficiency
  21. History or presence of uncontrolled cardiovascular disease, pulmonary, hepatic, gall bladder or biliary tract, renal, haematological, gastrointestinal, endocrine, immunologic, dermatological, neurological, psychiatric, or autoimmune disease
  22. History of, or current drug or alcohol abuse
  23. In the opinion of the investigator not suitable for inclusion in the study
  24. The pregnancy is considered high risk by treating physicians

Sites / Locations

  • Aarhus University Hospital; Skejby
  • Hvidovre University Hospital
  • Institut for Regional Sundhedsforskning
  • ESRU Rahima Moosa Mother and Child Hospital
  • Shandukani Research Clinic
  • Wits Vaccines & Infectious Diseases Analytics
  • Mecru Clinical Research Unit (MeCRU)
  • Setshaba Research Centre
  • St George's University Hospital
  • University Hospital Southampton

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Type

Experimental

Experimental

Experimental

Experimental

Placebo Comparator

Arm Label

Group 1: 4 week dose interval; 2 doses

Group 2: early intervention; 4 week dose interval; 2 doses

Group 3: early intervention; 8 week dose interval; 2 doses

Group 4: single dose

Group 5: placebo

Arm Description

Participants will receive one injection of placebo at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA

Participants will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of placebo at 30 (±1) weeks GA

Participants will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of placebo at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA

Participants will receive one injection of placebo at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA, and one injection of placebo at 30 (±1) weeks GA.

Participants will receive one injection of placebo at 22, 26 and 30 weeks (±1) GA

Outcomes

Primary Outcome Measures

Concentrations of Immunoglobulin (Ig) G antibodies specific to the AlpN proteins in μg/mL in cord blood from each baby
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in cord blood from each baby

Secondary Outcome Measures

Injection site reactions in the mother
Number of participants with solicited injection site reactions following vaccination
Adverse events following the vaccinations in the mother
Number of participants with solicited and other adverse events following the vaccinations
Clinically significant abnormal laboratory tests in the mother
Number of participants with clinically significant abnormal laboratory tests in the mother
Clinically significant changes in vital signs in the mother
Number of participants with clinically significant changes in vital signs (heart rate,blood pressure, oral temperature) in the mother
Clinically significant changes in physical examination in the mother
Number of participants with clinically significant changes in physical examination in the mother
Gestational weight in the baby
Gestational weight in the baby
Weight in the baby
Weight in the baby
Length in the baby
Length in the baby
Head circumference in the baby
Head circumference in the baby
Apgar score in the baby
Apgar score in the baby, range 0 to 10 where high scores are good and low scores are bad
Developmental milestones in the baby using Ages & Stages questionnaire
Developmental milestones in the baby using Ages & Stages questionnaire
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in maternal blood
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in maternal blood
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in blood from each baby
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in blood from each baby

Full Information

First Posted
November 9, 2021
Last Updated
August 22, 2023
Sponsor
Minervax ApS
Collaborators
Larix A/S
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1. Study Identification

Unique Protocol Identification Number
NCT05154578
Brief Title
Immunogenicity and Safety of GBS-NN/NN2 in Pregnant Women
Official Title
A Multicentre, Multinational, Parallel Group, Observer-blind, Randomised, Placebo-controlled Study on the Group B Streptococcus Vaccine (GBS-NN/NN2), Investigating the Immunogenicity and Safety of Four Vaccination Regimens in Pregnant Woman, Assessing IgG Specific to AlpN Proteins in Cord Blood and Maternal Blood, and the Safety Profile in Mother and Infant up to 6 Months Post-delivery
Study Type
Interventional

2. Study Status

Record Verification Date
August 2023
Overall Recruitment Status
Active, not recruiting
Study Start Date
February 17, 2022 (Actual)
Primary Completion Date
April 26, 2023 (Actual)
Study Completion Date
November 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Minervax ApS
Collaborators
Larix A/S

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a phase II, multicentre, multinational, randomized, parallel group, placebo-controlled study of four vaccination regimens in healthy pregnant women. There will be 5 treatment groups; three groups of 60 participants will receive will receive two doses of GBS-NN/NN2 vaccine and one dose of placebo (saline); one group of 60 participants will receive one dose of GBS-NN/NN2 vaccine and two doses of placebo (saline), and one group of 60 participants will receive three doses of placebo (saline).
Detailed Description
This is a phase II, multicentre, multinational, randomized, parallel group, placebo-controlled study of four vaccination regimens in healthy pregnant women. There will be 5 treatment groups; Group 1 will receive one injection of placebo at 22 (±1) weeks gestational age (GA), one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA. Group 2 will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of placebo at 30 (±1) weeks GA.Group 3 will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of placebo at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA. Group 4 will receive one injection of placebo at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of placebo at 30 (±1) weeks GA. Group 5 will receive an injection of placebo at 22, 26 and 30 weeks (±1) GA. Participants will attend the clinic for assessment visits up to delivery and for a further 3 visits at 28 (±4) days, 90 (±6) days and 180 (±14) days post delivery. Babies will be also be assessed at delivery, and 28 (±4) days, 90 (±6) days and 180 (±14) days post delivery.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Group B Streptococcal Infection

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Model Description
Participants will be randomized to one of 5 groups
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
272 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Group 1: 4 week dose interval; 2 doses
Arm Type
Experimental
Arm Description
Participants will receive one injection of placebo at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA
Arm Title
Group 2: early intervention; 4 week dose interval; 2 doses
Arm Type
Experimental
Arm Description
Participants will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA and one injection of placebo at 30 (±1) weeks GA
Arm Title
Group 3: early intervention; 8 week dose interval; 2 doses
Arm Type
Experimental
Arm Description
Participants will receive one injection of GBS-NN/NN2 at 22 (±1) weeks GA, one injection of placebo at 26 (±1) weeks GA and one injection of GBS- NN/NN2 at 30 (±1) weeks GA
Arm Title
Group 4: single dose
Arm Type
Experimental
Arm Description
Participants will receive one injection of placebo at 22 (±1) weeks GA, one injection of GBS-NN/NN2 at 26 (±1) weeks GA, and one injection of placebo at 30 (±1) weeks GA.
Arm Title
Group 5: placebo
Arm Type
Placebo Comparator
Arm Description
Participants will receive one injection of placebo at 22, 26 and 30 weeks (±1) GA
Intervention Type
Biological
Intervention Name(s)
GBS-NN/NN2 Vaccine
Intervention Description
0.5 mL GBS-NN/NN2 containing 50 μg of GBS-NN and 50 μg of GBS-NN2 and 0.5 mg of aluminium, given by intramuscular injection.
Intervention Type
Biological
Intervention Name(s)
Placebo
Other Intervention Name(s)
Normal saline
Intervention Description
0.5 mL normal saline given by intramuscular injection
Primary Outcome Measure Information:
Title
Concentrations of Immunoglobulin (Ig) G antibodies specific to the AlpN proteins in μg/mL in cord blood from each baby
Description
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in cord blood from each baby
Time Frame
Delivery
Secondary Outcome Measure Information:
Title
Injection site reactions in the mother
Description
Number of participants with solicited injection site reactions following vaccination
Time Frame
To Day 84
Title
Adverse events following the vaccinations in the mother
Description
Number of participants with solicited and other adverse events following the vaccinations
Time Frame
To Day 84
Title
Clinically significant abnormal laboratory tests in the mother
Description
Number of participants with clinically significant abnormal laboratory tests in the mother
Time Frame
To Day 84
Title
Clinically significant changes in vital signs in the mother
Description
Number of participants with clinically significant changes in vital signs (heart rate,blood pressure, oral temperature) in the mother
Time Frame
To Day 84
Title
Clinically significant changes in physical examination in the mother
Description
Number of participants with clinically significant changes in physical examination in the mother
Time Frame
To Day 84
Title
Gestational weight in the baby
Description
Gestational weight in the baby
Time Frame
Delivery, 28 days, 90 days and 180 days post delivery.
Title
Weight in the baby
Description
Weight in the baby
Time Frame
Delivery, 28 days, 90 days and 180 days post delivery.
Title
Length in the baby
Description
Length in the baby
Time Frame
Delivery, 28 days, 90 days and 180 days post delivery.
Title
Head circumference in the baby
Description
Head circumference in the baby
Time Frame
Delivery, 28 days, 90 days and 180 days post delivery.
Title
Apgar score in the baby
Description
Apgar score in the baby, range 0 to 10 where high scores are good and low scores are bad
Time Frame
1, 5 and 10 minutes
Title
Developmental milestones in the baby using Ages & Stages questionnaire
Description
Developmental milestones in the baby using Ages & Stages questionnaire
Time Frame
6 months
Title
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in maternal blood
Description
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in maternal blood
Time Frame
Delivery
Title
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in blood from each baby
Description
Concentrations of IgG antibodies specific to the AlpN proteins in μg/mL in blood from each baby
Time Frame
1 month, 3 months
Other Pre-specified Outcome Measures:
Title
Opsonophagocytic killing assay (OPKA) titres
Description
OPKA titres in cord blood and maternal blood
Time Frame
Delivery
Title
Concentrations of IgG antibodies specific to the NN and NN2 fusion proteins in maternal blood
Description
Concentrations of IgG antibodies specific to the NN and NN2 fusion proteins in maternal blood
Time Frame
4 weeks after each dose; at delivery
Title
Concentrations of IgG and IgA antibodies specific to the AlpN proteins in colostrum and in breast milk
Description
Concentrations of IgG and IgA antibodies specific to the AlpN proteins in colostrum and in breast milk
Time Frame
Within 48 hours of delivery; 1 month and 3 months post-delivery

10. Eligibility

Sex
Female
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy pregnant woman above the legally defined age of consent at the time of screening Carrying a normal singleton pregnancy, and is at 21+0 to 23+6 weeks GA at the planned tme of the 1st vaccination, as established by first/second trimester ultrasound examination Properly informed about the study and has given written informed consent and parental consent (for her baby) in accordance with the International Conference on Harmonization Good Clinical Practice (ICH GCP) and local legislation prior to the first study intervention Grants access to her own and her baby's study related medical records Exclusion Criteria Previous vaccination with an investigational Group B Streptococcus (GBS) Vaccine BMI of <17 or >40 at the time of screening Human immunodeficiency virus (HIV), hepatitis B virus (HBV) and/or hepatitis C virus (HCV) positive or positive for syphilis Knowingly carrying, at screening, a malformed or genetically abnormal foetus, incl. renal pelvis dilation, single umbilical artery (screening will be undertaken after the ultrasound conducted for the detection of anomalies) Chronic or pregnancy induced hypertension at screening, >1+ protein in urine regardless of blood pressure or 1+ protein in urine and hypertension Experienced a previous stillbirth prior to going into labour Gestational, type 1 or type 2 diabetes Potential placenta previa as per malformation ultrasound scan Rhesus negative and has anti-D antibodies or other potential harmful antibodies Known or suspected allergies to any components of the vaccine including to aluminium or aminoglycoside antibiotics, or an allergic reaction related to a previous vaccination Fever (temperature >37.9°C) on the day of receiving the first dose or an acute infection in the 7 days before the first dose (the first dose can be delayed if gestational age permits) Received systemic steroids in the 6 weeks before the first dose (inhaled and topical steroids are acceptable) Any lesion (including tattoos) at the planned injection site that will impair the assessment of the injection site Received immunosuppressive medication, chemotherapy or radiotherapy in the 24 weeks before the first dose Received blood, blood products, plasma derivatives or any immunoglobulin preparations in the 12 weeks before the first dose Anaemia, haemoglobin (<10 g/dL, 100 g/L, 6.2 mmol/L) Currently breast feeding Received any investigational medicinal product or vaccine in the 12 weeks or 5 half-lives before the first dose Received an approved vaccine within the 4 weeks before the first dose or expects to receive an approved vaccine during the study. Routine vaccinations recommended during pregnancy (e.g., pertussis and influenza) are permitted but every effort should be made to separate routine vaccinations from the trial vaccinations by at least 7 days. Known or suspected immunodeficiency or cancer (leukaemia, lymphoma), or a family history of congenital or hereditary immunodeficiency History or presence of uncontrolled cardiovascular disease, pulmonary, hepatic, gall bladder or biliary tract, renal, haematological, gastrointestinal, endocrine, immunologic, dermatological, neurological, psychiatric, or autoimmune disease History of, or current drug or alcohol abuse In the opinion of the investigator not suitable for inclusion in the study The pregnancy is considered high risk by treating physicians
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Geoff Kitson
Organizational Affiliation
gkitson@propharmapartners.uk.com
Official's Role
Study Director
Facility Information:
Facility Name
Aarhus University Hospital; Skejby
City
Aarhus
Country
Denmark
Facility Name
Hvidovre University Hospital
City
Hvidovre
Country
Denmark
Facility Name
Institut for Regional Sundhedsforskning
City
Kolding
Country
Denmark
Facility Name
ESRU Rahima Moosa Mother and Child Hospital
City
Johannesburg
Country
South Africa
Facility Name
Shandukani Research Clinic
City
Johannesburg
Country
South Africa
Facility Name
Wits Vaccines & Infectious Diseases Analytics
City
Johannesburg
Country
South Africa
Facility Name
Mecru Clinical Research Unit (MeCRU)
City
Pretoria
Country
South Africa
Facility Name
Setshaba Research Centre
City
Pretoria
Country
South Africa
Facility Name
St George's University Hospital
City
London
Country
United Kingdom
Facility Name
University Hospital Southampton
City
Southampton
Country
United Kingdom

12. IPD Sharing Statement

Learn more about this trial

Immunogenicity and Safety of GBS-NN/NN2 in Pregnant Women

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