Obesity Clinical Trial
— OPTIWINOfficial title:
Optimising Protection for Pregnant Women and Infants With Maternal Vaccination
Verified date | January 2024 |
Source | Women's and Children's Hospital, Australia |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This study has been designed to investigate if: 1. BMI affects the immunogenicity of influenza and pertussis vaccines given during pregnancy. 2. If pertussis vaccine co-administered with influenza vaccine impacts on the immunogenicity of the influenza vaccine. 3. If BMI affects transplacental antibody transfer efficiency following maternal vaccinations.
Status | Active, not recruiting |
Enrollment | 73 |
Est. completion date | March 1, 2024 |
Est. primary completion date | September 29, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Participants who, in the opinion of the study staff, can and will comply with the requirements of the protocol (eg. return for follow-up visits, blood collection etc). - Pregnant women aged 18 years and over at the time of vaccination. - Able to understand the information sheet and provide a written informed consent. Exclusion Criteria: - Any major illness that, in the investigator's judgment, will substantially increase the risk associated with the subject's participation in the study, or interfere with the evaluation of the study objectives. - History of serious medical conditions (eg cardiac, respiratory, renal, hepatic disorders, diabetes requiring treatment with insulin). - History of seasonal influenza or dTpa vaccination within the last 6 months prior to enrolment. - History of any immunosuppressive condition or currently on immunosuppressive medication. - Any contraindication to influenza or dTpa immunisation. - Anaphylaxis following a previous dose of any influenza or pertussis containing vaccine. - History of anaphylaxis to egg. - Past history of Guillain Barre Syndrome. - Bleeding diathesis or condition associated with prolonged bleeding that may contraindicate intramuscular injection or blood draw. - Receipt of immunoglobulins, blood or blood products within the past 6 months. |
Country | Name | City | State |
---|---|---|---|
Australia | Women's and Children's Hospital | North Adelaide | South Australia |
Lead Sponsor | Collaborator |
---|---|
Women's and Children's Hospital, Australia | Sanofi Pasteur, a Sanofi Company |
Australia,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Serum cytokines | Serum cytokine (TNF, IL6, IFNg) concentration (as measured by flow cytometry/ bead array). | 1 month post vaccination | |
Other | Serum cytokines | Serum cytokine (TNF, IL6, IFNg) concentration (as measured by flow cytometry/ bead array) | 6 month post vaccination. | |
Other | birthweight | weight in grams | delivery of infant | |
Other | haemagglutination Inhibition Antibody Titres in cord blood | HI Titre (as measured by Haemagglutination Inhibition Assay) | at delivery of infant | |
Primary | Immunogenicity against the 4 influenza strains included in the 2017-2019 Southern Hemisphere Influenza vaccine pre and post vaccination in obese and non-obese women | 1. Hl titres (as measured by Haemagglutination Inhibition Assay). 1. Proportion with antibody titres (HI>=40) following vaccination. |
1 month post vaccination | |
Secondary | Antibodies to pertussis antigens | 1. antibody titres to PRN, PT, FHA (measured by ELISA) | 1 month post vaccination compared with baseline (pre vaccination). | |
Secondary | Persistence of antibodies to pertussis antigens | 1. antibody titres to PRN, PT, FHA (measured by ELISA) | 6 months post vaccination. | |
Secondary | Persistence of antibodies to the 4 influenza strains included in the 2017-2019 | 1. Hl titres (as measured by Haemagglutination Inhibition Assay). 1. Proportion with antibody titres (HI>=40) following vaccination. |
6 months post vaccination |
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