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Vaccine

Tdap Vaccination Timing for Preeclampsia

Phase 4
Waitlist Available
Led By Craig D Scoville, MD, PhD
Research Sponsored by Institute of Arthritis Research
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Age 18 to 42
Be between 18 and 65 years old
Must not have
No history of cancer in past 5 years prior to this study (except for non-melanoma localized skin cancers or cancer in situ)
Timeline
Screening 3 weeks
Treatment Varies
Follow Up through duration of pregnancy approximately 10 months
Awards & highlights
No Placebo-Only Group
Drug Has Already Been Approved
Pivotal Trial

Summary

This trial could reduce the incidence of preeclampsia, a common and severe complication of pregnancy.

Who is the study for?
This trial is for pregnant women aged 18-42, confirmed at week 12, who are willing to get the Tdap vaccine at either week 28 or week 36 and follow study procedures. They must sign informed consent and have no history of allergic reactions to Tdap or cancer (except certain skin cancers) in the past five years.
What is being tested?
The study is testing if getting a Tdap vaccination earlier in pregnancy (week 28) versus later (week 36) can reduce the risk of developing preeclampsia, which affects maternal and fetal health.
What are the potential side effects?
While not explicitly stated here, common side effects of the Tdap vaccine may include pain at injection site, mild fever, fatigue, headache, nausea, diarrhea or vomiting.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
Select...
I am between 18 and 42 years old.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
Select...
I haven't had any cancer except for non-dangerous skin cancer or localized cancer in the last 5 years.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~through duration of pregnancy approximately 10 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and through duration of pregnancy approximately 10 months for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Pre-Eclampsia
Incidence of preeclampsia in each arm of the study with regards to timing of Tdap vaccination
Secondary study objectives
Assessment of other potential risk factors for preeclampsia inclusive of BMI, hypertension, prior history of preeclampsia, first pregnancy
Other study objectives
Compare the placental and maternal biomarkers of preeclampsia in order to devise a better formula for positive prediction of preeclampsia

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.
Drug Has Already Been Approved
The FDA has already approved this drug, and is just seeking more data.
Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Active Control
Group I: Tdap vaccinations at gestational week 36Active Control1 Intervention
Pregnant women entering into this clinical research study and signing informed consent at week 12 will be randomized to either receive Tdap vaccination at week 28 or week 36. Subjects receiving Tdap vaccination at week 36 will receive a placebo injection at week 28. Subjects will be followed with routine standard of care throughout their pregnancy and have routine clinic visits from which study visits will include weeks 12, 20, 28, 36, and 2 weeks postpartum. Data will be collected at each of these visits with special attention to the development of preeclampsia and fetal health
Group II: Tdap vaccinations at gestational week 28Active Control1 Intervention
Pregnant women entering into this clinical research study and signing informed consent at week 12 will be randomized to either receive Tdap vaccination at week 28 or week 36. Subjects receiving Tdap vaccination at week 28 will receive a placebo injection at week 36. Subject will be followed with routine standard of care throughout their pregnancy and have routine clinic visits from which study visits will include weeks 12, 20, 28, 36, and 2 weeks postpartum. Data will be collected at each of these visits with special attention to the development of preeclampsia and fetal health

Find a Location

Who is running the clinical trial?

Institute of Arthritis ResearchLead Sponsor
Louisiana State University Health Sciences Center in New OrleansOTHER
120 Previous Clinical Trials
41,267 Total Patients Enrolled
Brigham Young UniversityOTHER
22 Previous Clinical Trials
8,611 Total Patients Enrolled

Media Library

Tdap Vaccine (Vaccine) Clinical Trial Eligibility Overview. Trial Name: NCT04424693 — Phase 4
Pre-eclampsia Research Study Groups: Tdap vaccinations at gestational week 36, Tdap vaccinations at gestational week 28
Pre-eclampsia Clinical Trial 2023: Tdap Vaccine Highlights & Side Effects. Trial Name: NCT04424693 — Phase 4
Tdap Vaccine (Vaccine) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04424693 — Phase 4
~325 spots leftby Nov 2025