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CompletedNCT03451071Updated Oct 4, 2021Results posted

Postpartum HPV Vaccination

A Phase 4 interventional study of Gardasil9 in HPV-Related Malignancy, sponsored by University of Alabama at Birmingham. Completed at 1 site in United States. Open to female participants aged 16 Years to 26 Years. Per ClinicalTrials.gov, last updated 2021-10-04.

Sponsored by University of Alabama at Birmingham · Phase 4, Interventional, and Health services research

Phase
Phase 4
Study type
Interventional
Enrollment
195
Allocation
Not applicable
Ages
16 Years to 26 Years
Sex
Female
01

Study summary

Human papillomavirus (HPV)-related cancers are on the rise in the United States. Furthermore, greater than 90% of cervical cancer cases are attributable to HPV, and cervical cancer disproportionately affects women of color in both incidence and mortality. Due to low HPV vaccine uptake in the US, innovative approaches to vaccinating vulnerable populations are necessary in order to maximize the cancer prevention potential of this vaccine. The puerperium is a time period when women are engaged in the healthcare system and have almost universal access to affordable health care. Two prior studies have shown that postpartum HPV vaccination is acceptable to patients, and high rates of vaccination were achieved in these primarily Hispanic populations. However, data show that the immune response in young women is less robust than in adolescents, and no studies have examined immunogenicity in postpartum women specifically. We propose an HPV vaccination pilot study in women who receive postpartum care at University of Alabama at Birmingham (UAB) hospital. We will examine the acceptability, uptake and immunogenicity of the vaccine in the postpartum setting.

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Conditions studied

  • HPV-Related Malignancy

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03

Who can participate

Ages eligible
16 Years to 26 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • postpartum day 0-4 after vaginal or Cesarean delivery at UAB hospital

Exclusion criteria

Exclusion criteria

  • Fetal demise or miscarriage, autoimmune disorder, HIV, Hepatitis B/C, chronic steroid use, preeclampsia, non-English speaking
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Study design

Phase
Phase 4
Primary purpose
Health services research
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
195 participants (actual)

Study arms

  • Experimental
    Gardasil9

    Drug: Gardasil9

Interventions

  • DrugGardasil9

    Gardasil 9

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What researchers measure

Primary outcomes

  1. Patient Indication of Willingness to Accept the Vaccine Based on Survey

    This was established using a survey to indicate willingness to receive vaccine.

    Time frame: 1 day (at the time of initial recruitment /survey)

Secondary outcomes

  1. Uptake of the Vaccine Doses

    Those that actually received the vaccine and each time point.

    Time frame: at baseline

  2. Uptake of the Vaccine Doses

    Those that actually received the vaccine and each time point.

    Time frame: at 3 months

  3. Uptake of the Vaccine Doses

    Those that actually received the vaccine and each time point.

    Time frame: at 6 months

  4. Serum Titers of Vaccine-specific HPV Types

    Immunogenicity

    Time frame: baseline and 7 months

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Results

Posted Oct 4, 2021

Participant flow

First Vaccine
Participant flow — First Vaccine
MilestoneGardasil9
Started56
Completed55
Not completed1
Withdrew: Withdrawal by subject1
Second Vaccine
Participant flow — Second Vaccine
MilestoneGardasil9
Started55
Completed36
Not completed19
Withdrew: Lost to follow-up19
Third Vaccine
Participant flow — Third Vaccine
MilestoneGardasil9
Started36
Completed14
Not completed22
Withdrew: Lost to follow-up22
Final Questionnaire and Blood Draw
Participant flow — Final Questionnaire and Blood Draw
MilestoneGardasil9
Started14
Completed10
Not completed4
Withdrew: Lost to follow-up4

Outcome measures

PrimaryPatient Indication of Willingness to Accept the Vaccine Based on Survey

This was established using a survey to indicate willingness to receive vaccine.

Time frame:
1 day (at the time of initial recruitment /survey)
Reported as:
Count of participants · Participants
Patient Indication of Willingness to Accept the Vaccine Based on Survey
ParticipantsGardasil9
Patient Indication of Willingness to Accept the Vaccine Based on Survey56
SecondaryUptake of the Vaccine Doses

Those that actually received the vaccine and each time point.

Time frame:
at baseline
Reported as:
Count of participants · Participants
Uptake of the Vaccine Doses
ParticipantsGardasil9
Uptake of the Vaccine Doses55
SecondaryUptake of the Vaccine Doses

Those that actually received the vaccine and each time point.

Time frame:
at 3 months
Reported as:
Count of participants · Participants
Uptake of the Vaccine Doses
ParticipantsGardasil9
Uptake of the Vaccine Doses36
SecondaryUptake of the Vaccine Doses

Those that actually received the vaccine and each time point.

Time frame:
at 6 months
Reported as:
Count of participants · Participants
Uptake of the Vaccine Doses
ParticipantsGardasil9
Uptake of the Vaccine Doses14
SecondarySerum Titers of Vaccine-specific HPV Types

Immunogenicity

Time frame:
baseline and 7 months

No measurements were reported for this outcome.

Adverse events

Collected over 7 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Gardasil90/55 (0%)0/55 (0%)1/55 (1.8%)
Most frequent other events
Most frequent other events
EventGardasil9
Flu-like symptomsGeneral disorders1/55

Baseline characteristics

Age, Continuous
Age, Continuous(years)Gardasil9
Mean21.9 ± 2.8
Sex/Gender, Customized
Sex/Gender, Customized(Participants)Gardasil9
Female only56
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Gardasil9
White4
Black48
Hispanic/Latino4
07

Study locations

1 site
  • University of Alabama at Birmingham
    Birmingham, Alabama 35233, United States
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References and documents

Study documents

  • Protocol and statistical analysis plan · Mar 24, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Registry details

Key details

Study ID
NCT03451071
Lead sponsor
University of Alabama at Birmingham
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Haller Smith (Professor, University of Alabama at Birmingham) — Principal investigator
First posted
Mar 1, 2018
Start date
Apr 29, 2019
Primary completion
Jun 1, 2020
Completion
Dec 30, 2020
Results posted
Oct 4, 2021
Last update
Oct 4, 2021

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.

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