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Pre-EclampsiaPhase 4NCT04424693

Comparing the Incidence of Preeclampsia Between Pregnant Women Receiving Tdap Vaccinations at Week 28 or at Week 36

A Phase 4 study testing Tdap Vaccine Administration in people with Pre-Eclampsia and Diphtheria, Tetanus and Pertussis Vaccine Reaction, run by Institute of Arthritis Research at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Preeclampsia is a significant medical condition occurring in 3-8% of pregnancies and impacts deleteriously both maternal and fetal health. An important discovery has been made by Dr Craig D Scoville showing that early Tdap vaccinations in pregnancy can reduce the incidence of preeclampsia by more than 50%. Read more about this study

Who is it for?
Ages 18 to 42 years, women onlyHealthy volunteers can take part
What is being tested?
Tdap Vaccine Administration
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,600 participants
Where
1 siteUnited States
Study dates
1 Dec 2020to 31 Dec 2024
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 42 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • confirmed pregnancy at week 12
  • Age 18 to 42
  • Willing to participate and sign informed consent documentation
  • willing to follow study procedures with regards to randomization of Tdap and attend all routine clinic visits per obstetrician and standard of care
  • accept Tdap vaccination either at week 28 or week 36

Who cannot join

  • no history of allergic reaction or intolerance to Tdap vaccination
  • No history of cancer in past 5 years prior to this study (except for non melanoma localized skin cancers or cancer in situ) -

Trial locations and contacts

1 site in 1 country.

Craig D Scoville, MD,PhD contact

208-542-9080

cdscoville@yahoo.com

United States1 site
  • Institute of Arthritis Research

    Idaho Falls, Idaho, 83404

    Craig D Scoville, MD, PhD, 208-542-9080, cdscoville@yahoo.com

    Maritza Rosales, 208-542-9080, maritza@scovilleclinic.com

Other trials in United States

About this study

Official title: A Prospective Randomized Clinical Research Trial Comparing the Incidence of Preeclampsia Between Pregnant Women Receiving Tdap Vaccinations at Week 28 and Those Receiving Tdap Vaccinations at Week 36

Preeclampsia is a significant medical condition occurring in 3-8% of pregnancies and impacts deleteriously both maternal and fetal health. An important discovery has been made by Dr Craig D Scoville showing that early Tdap vaccinations in pregnancy can reduce the incidence of preeclampsia by more than 50%. A prospective clinical research trial is proposed and urgently needed to validate this finding and thereby make a significant contribution in reducing the incidence of this common and severe complication of pregnancy.

Read the detailed description

A double blinded randomized prospective clinical research study is proposed to validate the hypothesis that Tdap vaccinations at week 28 in pregnancy can reduce the incidence of preeclampsia by more than 50%. This project will recruit 1600 pregnant women with appropriate informed consent in the first trimester of pregnancy, obtain detailed obstetric and health history, and then randomize these subjects so 800 women receive Tdap at week 28, and 800 women receive Tdap at week 36, and all women will be followed during their pregnancies using standard of care with special attention to preeclampsia and fetal outcomes. Blood samples will be obtained at weeks 12, 20, and 36 in order to test the anti-tetanus toxoid antibody levels, anti-diptheria antibody levels, anti-pertussis antibody levels, and also maternal cytokines (IL-2, IL-4, IL-6, IL-10, TNFa, IL-17, and IFNg), and placental biomarkers (sFlt-1, sEng, and PIGF) for preeclampsia on those patients who develop preeclampsia and compare to those who didn't and thereby better understand the biomarkers of preeclampsia and devise a better formula for positive prediction for preeclampsia. To make this change in clinical practice and save lives, this study is asking for funding from NICHD PA-18-480.

Being tested
Tdap Vaccine Administration
Keywords
Preeclampsia, Tdap vaccinations
Medical subject headings
Pre-Eclampsia, Diphtheria, Tetanus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tdap Vaccine AdministrationDrug

    Tdap vaccinations are routinely given during pregnancy between weeks 27 and 36 per guidelines of American College Obstetrics and Gynecology (ACOG) -- but this study uniquely is trying to establish that the earlier Tdap vaccinations reduce preeclampsia by more than 50%

Study groups in NCT04424693
Study groupRoleWhat they receive
Tdap vaccinations at gestational week 28Active comparatorPregnant 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
Receives: Drug: Tdap Vaccine Administration
Tdap vaccinations at gestational week 36Active comparatorPregnant 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
Receives: Drug: Tdap Vaccine Administration

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of preeclampsia in each arm of the study with regards to timing of Tdap vaccination

    The definition of preeclampsia in this study will follow the guidelines of ACOG inclusive of hypertension, proteinuria, but also other features

    Measured: Through duration of pregnancy approximately 10 months

  2. Incidence of preeclampsia in each arm of the study with regards to the quantitative anti-tetanus toxoid antibody level

    Test the hypothesis that pregnant women with anti-tetanus toxoid antibody levels <1.0 IU/ml are at higher risk of preeclampsia compared to those with higher levels. Obtain blood levels for anti-tetanus toxoid antibody levels, anti-pertussis antibody levels, and anti-diptheria antibody levels will be tested at weeks 12, 20, and 36

    Measured: Through duration of pregnancy approximately 10 months

Secondary outcomes (1)
  1. Assessment of other potential risk factors for preeclampsia inclusive of BMI, hypertension, prior history of preeclampsia, first pregnancy

    Statistical analysis of all possible variables for preeclampsia

    Measured: Through duration of pregnancy approximately 10 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jun 2020
  2. Study start1 Dec 2020 (estimated)
  3. Primary completion1 Oct 2023 (estimated)
  4. Study completion31 Dec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Pregnant women enlisted in the double blinded study will be randomized to receive Tdap vaccination either at week 28 or week 36 and observed and treated with standard of care.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,600 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04424693
Sponsor's protocol ID
PE-Tdap01
Status last verified
Jun 2020
First submitted
3 Jun 2020
Last updated
16 Jun 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Data acquired in this project will be shared through presentations at scientific meetings and published peer reviewed publications. In order to disseminate the data, we will maintain a data archive where all information is stored and can be distributed. Data requests may be sent to the PI and reasonable requests will be granted. However a particular data set in the archives will only be shared after a manuscript describing the main findings has been accepted for publication. Also any proprietary information will not be shared until legal restrictions make it permissible

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Tdap Vaccine Administration in people with Pre-Eclampsia and Diphtheria, Tetanus and Pertussis Vaccine Reaction, run by Institute of Arthritis Research at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 16 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Craig D Scoville, MD,PhD (208-542-9080, cdscoville@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of preeclampsia in each arm of the study with regards to timing of Tdap vaccination (time frame: Through duration of pregnancy approximately 10 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jun 2020.

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