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CompletedNCT00806676Updated Jul 24, 2017Results posted

Antibody Response to Human Papillomavirus Recombinant Vaccine (Gardasil®) in Girls and Young Women With Chronic Kidney Disease

An interventional study of Gardasil® Vaccine (FDA-approved vaccination regimen) in Chronic Kidney Disease, sponsored by Johns Hopkins University. Completed at 2 sites in United States. Open to female participants aged 9 Years to 21 Years. Per ClinicalTrials.gov, last updated 2017-07-24.

Sponsored by Johns Hopkins University · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
67
Allocation
Non-randomized
Ages
9 Years to 21 Years
Sex
Female
01

Study summary

People with chronic kidney disease are known to have immune response abnormalities, including a diminished response to some vaccinations. Those with chronic kidney disease have a disproportionate burden of HPV 6-, 11-, 16- and/or 18-related genital tract disease. Due to immune response abnormalities, the CKD population may or may not respond to the recommended three-dose regimen of Gardasil®, a vaccine intended to protect against HPV 6-, 11-, 16-, and 18-related genital tract disease. The objective of this study is to measure the antibody response to Gardasil® in female patients 9-21 years of age with chronic kidney disease (CKD) (Stage 1-4), end-stage kidney disease (Stage 5 CKD), and status-post kidney transplant. Gardasil® vaccine will be administered according to the FDA-approved schedule. Blood samples to measure antibody levels to vaccine strains of human papillomavirus (HPV) will be obtained at months 0, 7 and 24.

02

Conditions studied

  • Chronic Kidney Disease

Keywords

  • chronic kidney disease
  • children
  • dialysis
  • kidney transplant
  • human papilloma virus
  • Gardasil
  • Chronic kidney disease (non-dialysis, dialysis, and kidney transplant) secondary to any cause.
03

In context

Kidney Diseases

3,840 studies on the registry are indexed under Kidney Diseases; 500 are open to participants now.

This study's enrollment of 67 is close to the median of 70 across 2,640 interventional studies indexed under Kidney Diseases.

Browse Kidney Diseases studies →

Lead sponsor

Johns Hopkins University is the lead sponsor of 1,783 studies on the registry; 313 are open to participants now.

Of its 203 completed or terminated interventional studies of FDA-regulated products, 140 (69%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
9 Years to 21 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

Females, aged 9-21 years, in the following groups:

  • CKD (defined as estimated glomerular filtration rate between 90 ml/min/1.73m2 and 15 ml/min/1.73m2, as calculated by the Schwartz formula)
  • ESRD (eGFR \< 15 ml/min/1.73m2, or receiving chronic dialysis [peritoneal or hemodialysis])
  • Status-post kidney transplant

Exclusion criteria

Exclusion Criteria:

  • Within first 3 months post kidney transplant
  • Within 3 months of kidney rejection episode
  • Hypersensitivity to active substances or excipients of Gardasil vaccine
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
67 participants (actual)

Study arms

  • Other
    1. Chronic Kidney Disease, NKF Stage 1-4

    Gardasil vaccine series will be administered according to FDA-approved schedule, as recommended by the Centers for Disease Control and Prevention and the American Academy of Pediatrics. Geometric antibody titers among those with chronic kidney disease will be compared to titers in the general population measured during Phase III clinical studies by Merck \& Co, Inc, to prove efficacy of the vaccine and obtain FDA approval.

    Drug: Gardasil® Vaccine (FDA-approved vaccination regimen)

  • Other
    2. ESRD (dialysis)

    Gardasil vaccine series will be administered according to FDA-approved schedule, as recommended by the Centers for Disease Control and Prevention and the American Academy of Pediatrics. Geometric antibody titers among those with ESRD will be compared to titers in the general population measured during Phase III clinical studies by Merck \& Co, Inc, to prove efficacy of the vaccine and obtain FDA approval.

    Drug: Gardasil® Vaccine (FDA-approved vaccination regimen)

  • Other
    3. Kidney Transplant Recipient

    Gardasil vaccine series will be administered according to FDA-approved schedule, as recommended by the Centers for Disease Control and Prevention and the American Academy of Pediatrics. Geometric antibody titers among those with a kidney transplant will be compared to titers in the general population measured during Phase III clinical studies by Merck \& Co, Inc, to prove efficacy of the vaccine and obtain FDA approval.

    Drug: Gardasil® Vaccine (FDA-approved vaccination regimen)

Interventions

  • DrugGardasil® Vaccine (FDA-approved vaccination regimen)

    Standard Gardasil® 3-dose regimen (0.5 mL/dose; doses at 0, 2 and 6 months) delivered to females with chronic kidney disease 9-21 years of age.

06

What researchers measure

Primary outcomes

  1. Percentage of Patients 9-15 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2

    The primary outcome was antibody response to each of four HPV genotypes contained within the HPV vaccine at the time periods specified for the blood draws. Antibody levels, measured by Merck GmbH, were initially determined using the competitive Luminex immunoassay(cLIA; Merck GmbH), the assay used in the original licensing studies. Seropositivity was defined as being above thresholds set at 20, 16, 20, and 24 milliMerck units for HPV genotypes 6, 11, 16, and 18, respectively, as determined in phase 2 studies among patients who were immunocompetent. Antibody levels were reanalyzed using the newer, more sensitive IgG cLIA in stored serum from blood draws 2 and 3. Seropositivity for this assay was defined as being above thresholds set at 15, 15, 7, and 10 milliMerck units for HPV genotypes 6, 11, 16, and 18, respectively.

    Time frame: Month 7

  2. Percentage of Patients 16-21 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2

    Time frame: Month 7

  3. Percentage of Patients 9-15 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2

    Time frame: Month 7

  4. Percentage of Patients 16-21 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2

    Time frame: Month 7

  5. Percentage of Patients 9-15 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2

    Time frame: Month 7

  6. Percentage of Patients 16-21 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2

    Time frame: Month 7

07

Results

Posted Jul 24, 2017

Participant flow

Participant flow — Overall Study
Milestone1. Chronic Kidney Disease, NKF Stage 1-42. ESRD (Dialysis)3. Kidney Transplant Recipient
Started29929
Completed25923
Not completed406

Outcome measures

PrimaryPercentage of Patients 9-15 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2

The primary outcome was antibody response to each of four HPV genotypes contained within the HPV vaccine at the time periods specified for the blood draws. Antibody levels, measured by Merck GmbH, were initially determined using the competitive Luminex immunoassay(cLIA; Merck GmbH), the assay used in the original licensing studies. Seropositivity was defined as being above thresholds set at 20, 16, 20, and 24 milliMerck units for HPV genotypes 6, 11, 16, and 18, respectively, as determined in phase 2 studies among patients who were immunocompetent. Antibody levels were reanalyzed using the newer, more sensitive IgG cLIA in stored serum from blood draws 2 and 3. Seropositivity for this assay was defined as being above thresholds set at 15, 15, 7, and 10 milliMerck units for HPV genotypes 6, 11, 16, and 18, respectively.

Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 9-15 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 9-15 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2100 (69 to 100)100 (69 to 100)100 (69 to 100)100 (69 to 100)
PrimaryPercentage of Patients 16-21 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2
Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 16-21 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 16-21 Years of Age With CKD Achieving Seropositivity (IgG Assay) at Blood Draw 2100 (63 to 100)100 (63 to 100)100 (63 to 100)100 (63 to 100)
PrimaryPercentage of Patients 9-15 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2
Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 9-15 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 9-15 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2100 (54 to 100)100 (54 to 100)100 (54 to 100)100 (54 to 100)
PrimaryPercentage of Patients 16-21 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2
Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 16-21 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 16-21 Years of Age on Dialysis Achieving Seropositivity (IgG Assay) at Blood Draw 2100 (29 to 100)100 (29 to 100)100 (29 to 100)100 (29 to 100)
PrimaryPercentage of Patients 9-15 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2
Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 9-15 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 9-15 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 288 (47 to 100)75 (35 to 97)100 (63 to 100)88 (47 to 100)
PrimaryPercentage of Patients 16-21 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2
Time frame:
Month 7
Reported as:
Number · percentage of participants
Percentage of Patients 16-21 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 2
percentage of participantsHPV 6HPV 11HPV 16HPV 18
Percentage of Patients 16-21 Years of Age With a Kidney Transplant Achieving Seropositivity (IgG Assay) at Blood Draw 250 (23 to 77)57 (29 to 82)100 (77 to 100)64 (35 to 87)

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
1. Chronic Kidney Disease, NKF Stage 1-40/25 (0%)0/25 (0%)4/25 (16%)
2. ESRD (Dialysis)0/9 (0%)0/9 (0%)0/9 (0%)
3. Kidney Transplant Recipient0/23 (0%)0/23 (0%)4/23 (17.4%)
Most frequent other events
Most frequent other events
Event1. Chronic Kidney Disease, NKF Stage 1-42. ESRD (Dialysis)3. Kidney Transplant Recipient
Pain at vaccine injection siteInjury, poisoning and procedural complications4/250/94/23

Baseline characteristics

Age, Customized
Age, Customized(Participants)1. Chronic Kidney Disease, NKF Stage 1-42. ESRD (Dialysis)3. Kidney Transplant RecipientTotal
>=11, <=21, years2592357
Sex: Female, Male
Sex: Female, Male(Participants)1. Chronic Kidney Disease, NKF Stage 1-42. ESRD (Dialysis)3. Kidney Transplant RecipientTotal
Female2592357
Male0000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)1. Chronic Kidney Disease, NKF Stage 1-42. ESRD (Dialysis)3. Kidney Transplant RecipientTotal
American Indian or Alaska Native0000
Asian0000
Native Hawaiian or Other Pacific Islander0000
Black or African American104620
White1221428
More than one race0000
Unknown or Not Reported3339
08

Study locations

2 sites
  • Emory Healthcare & Children's Healthcare of Atlanta Pediatric Nephrology Clinic
    Atlanta, Georgia 30322, United States
  • Johns Hopkins University Harriet Lane Kidney Center, Rubenstein Child Health Bldg
    Baltimore, Maryland 21287, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 24, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00806676
Lead sponsor
Johns Hopkins University
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Dec 11, 2008
Start date
Dec 2008
Primary completion
Aug 2015
Completion
Aug 2015
Results posted
Jul 24, 2017
Last update
Jul 24, 2017

Study contacts

Jeffrey J Fadrowski, MD, MHS
principal investigator · Johns Hopkins University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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