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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT03180034
Other study ID # NCI-2020-08550
Secondary ID NCI-2020-0855099
Status Enrolling by invitation
Phase Phase 4
First received
Last updated
Start date November 29, 2017
Est. completion date August 1, 2025

Study information

Verified date April 2024
Source National Cancer Institute (NCI)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This phase IV trial investigates whether one dose of a human papillomavirus vaccine works as well as two doses in preventing human papillomavirus (HPV) infection. Certain types of HPV cause almost all cases of cervical cancer. Vaccines that protect against infection with these types of human papillomavirus may reduce the risk of cervical cancer. Both Gardasil-9 and Cervarix protect against HPV 16 and 18, which cause 70% of all cervical cancers. However, HPV vaccination rates are too low, especially in countries with very high rates of cervical cancer. HPV vaccines are expensive-many countries cannot afford them-more than one dose is needed, and giving multiple doses is difficult. Researchers want to find out if one dose prevents HPV infection. If it does, more people might get the vaccine.


Description:

PRIMARY OBJECTIVES: I. For each vaccine separately, to evaluate non-inferiority of one compared to two vaccination doses in the prevention of new HPV16/18 cervical HPV infections that persist 6+ months in girls ages 12-16 years at vaccination. II. For each vaccine separately, to evaluate one dose of HPV vaccination compared to no vaccination in the protection against HPV16/18 cervical HPV infections that persist 6+ months in girls ages 12-16 years at vaccination; protection resultant from two HPV vaccine doses compared to no vaccination will also be investigated. Note that the second epidemiological survey group (the end-of-study survey) will serve as the primary unvaccinated group for these analyses. SECONDARY OBJECTIVES: I. To perform a preliminary evaluation of each vaccine at 4 years. Ia. For each vaccine separately, evaluate non-inferiority of one compared to two vaccination doses in the prevention of new HPV16/18 cervical HPV infections that persist 6+ months in girls ages 12-16 years at vaccination using the first four years of data; Ib. For each vaccine separately, evaluate one dose of HPV vaccination compared to no vaccination in the protection against HPV16/18 cervical HPV infections that persist 6+ months in girls ages 12-16 years at vaccination using data available at four years and the first epidemiologic survey; protection resultant from two doses of the HPV vaccines compared to no vaccination will also be investigated. II. For each vaccine separately, to compare immunogenicity via measurement of serum antibodies between girls who received one and two doses of the HPV vaccines. When looking at these antibodies, the primary focus will be on HPV16/18; antibodies against additional HPV types included in the nonavalent HPV vaccine will also be investigated. III. For the nonavalent vaccine, demonstrate non-inferiority of one versus two doses in the prevention of any new vaccine-type HPV infection (i.e., aggregate HPV 16/18/31/33/45/52/58) that persist 6+ months (note: HPV6/11, the noncarcinogenic HPV types responsible for genital warts, will be investigated as an ancillary objective, per item 1, sub-item iv, below). IV. For each vaccine separately, demonstrate non-inferiority of one versus two doses in the prevention of any new carcinogenic HPV cervical infection (vaccine and/or non-vaccine types) that persists 6+ months. V. Conduct a cost and cost-effectiveness evaluation of HPV vaccination with one versus two doses of the nonavalent and bivalent vaccines in the setting of Costa Rica. ANCILLARY OBJECTIVES: I. For each vaccine separately, demonstrate non-inferiority of one versus two doses in the prevention of study endpoints (including but not limited to those listed below) including a comparison to unvaccinated girls: Ia. Any new HPV16, HPV18, or HPV16/18 infection (i.e., one-time detection); Ib. Any new carcinogenic-type HPV infection (i.e., one-time HPV detection of aggregate HPV vaccine and/or non-vaccine HPV types); Ic. Any new vaccine-type HPV infection (i.e., aggregate HPV 16/18/31/33/45/52/58); Id. Any new HPV6/11 infection (i.e., one-time detection). II. Compare HPV attack rate and immunogenicity of Merck nonavalent versus (vs.) GlaxoSmithKline (GSK) bivalent vaccines with respect to number of vaccine doses received in the prevention of six-month persistent HPV16/18 and any carcinogenic infections, and in the prevention of one-time detection of these types. III. Conditional on demonstrating inferiority of one versus two doses of the vaccine: IIIa. To evaluate inferiority of one versus two doses. IIIb. To evaluate reduction in the HPV attack rate of one and two doses compared to none by time (years 1 through 4). IV. Obtain participants authorization to passively track cervical pre-cancer, carcinoma in situ and cervical cancer outcomes through the national tumor registry, national cytology laboratory, social security registries, national cytology laboratory, and other resources after the trial ends (i.e., to continue indefinitely or until consent is rescinded). V. Establish a biobank including blood components (for example but not limited to serum, red blood cells, plasma, peripheral blood mononuclear cells), urine, oral and cervical swab samples collected from girls in the randomized trial and the epidemiologic HPV survey for futures analysis related to HPV infection, associated diseases, and effects of the vaccine. OUTLINE: There are two components to the study: (1) a controlled, randomized, double-blinded non-inferiority clinical trial to compare one-dose to two-dose vaccination among twenty thousand girls 12 to 16 years old; and (2) a concurrent epidemiologic survey for HPV status among two groups of unvaccinated women 16-21 years old. Trial participants are randomized to 1 of 4 arms. Survey participants are assigned to Arm V. ARM I: Participants receive recombinant human papillomavirus nonavalent vaccine (Gardasil) intramuscularly (IM) at month 0 and diphtheria toxoid/tetanus toxoid/acellular pertussis vaccine adsorbed (DTaP) IM at month 6. ARM II: Participants receive recombinant human papillomavirus bivalent vaccine (Cervarix) IM at month 0 and DTaP IM at month 6. ARM III: Participants receive Gardasil IM at month 0 and 6. ARM IV: Participants receive Cervarix IM at month 0 and 6. After completion of study intervention, trial participants are followed up every 6 months for up to 4 years. ARM V: A concurrent epidemiologic survey for HPV status among two groups of unvaccinated women. Survey participants are followed for two study visits six months apart to determine their HPV deoxyribonucleic acid (DNA) status, with no further follow-up. These women will be offered HPV vaccination (Cervarix) at the two study visits.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 28000
Est. completion date August 1, 2025
Est. primary completion date August 1, 2025
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 12 Years to 21 Years
Eligibility Inclusion Criteria: - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Female - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Aged between 12 and 16 years inclusive - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Living in the study area without plans to move outside the country in the next six months - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Able to communicate with study personnel - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Willing to participate in the study and sign the informed assent - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: Supported in study participation by at least one of their parents (or guardians), who is willing to sign the informed consent document - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: In good health as determined by a medical history (physical exam will be conducted if necessary per the doctor's criterion) - INITIAL SURVEY ELIGIBILITY CRITERIA: Same as trial participants except for the age range, which is between 17 and 20 years old inclusive - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: Same as trial and initial survey participants except for the age range, which will be closely matched to the current ages of trial participants when they are attending their E54 visits, and thus is expected to be approximately between 16 and 21 years old inclusive Exclusion Criteria: - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: They have a diagnosis of an autoimmune, degenerative, or neurological disease without treatment or adequate control; a progressive or severe neurological disease; a genetic immunodeficiency; or any other serious chronic disease without treatment and / or adequate control that, according to the principal investigator or designee, for which vaccination is contraindicated (NOTE: Potential participants with these conditions can be included after consultation with the external medical advisor of the study or with an appropriate specialist - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: They are allergic to one of the vaccine components, yeast, or latex - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: The clinician determining the eligibility in agreement with principal investigator considers that there is a reason that precludes participation - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: They have been vaccinated against HPV - RANDOMIZED TRIAL ELIGIBILITY CRITERIA: The girl or her parent/legal guardian does not have an identification document - INITIAL SURVEY ELIGIBILITY CRITERIA: Same as trial participants - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: They have a positive or equivocal urine pregnancy test result - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: They are pregnant - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: investigator considers that there is a reason that precludes participation - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: They have been vaccinated against HPV - END-OF-STUDY SURVEY ELIGIBILITY CRITERIA: They or their parent/legal guardian, as applicable, does not have an identification document

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
Diphtheria Toxoid/Tetanus Toxoid/Acellular Pertussis Vaccine Adsorbed
Given IM
Other:
Questionnaire Administration
Ancillary studies
Biological:
Recombinant Human Papillomavirus Bivalent Vaccine
Given IM
Recombinant Human Papillomavirus Nonavalent Vaccine
Given IM

Locations

Country Name City State
Costa Rica Agencia Costarricense de Investigaciones Biomédicas (ACIB) Liberia Guanacaste

Sponsors (2)

Lead Sponsor Collaborator
National Cancer Institute (NCI) Bill and Melinda Gates Foundation

Country where clinical trial is conducted

Costa Rica, 

Outcome

Type Measure Description Time frame Safety issue
Primary Occurrence of at least one incident persistent human papillomavirus (HPV)-16 and/or HPV-18 cervical infections To be considered incident and persistent, an HPV-16 and/or HPV-18 infection must fulfill the following criteria: Two same-type HPV positive (by polymerase chain reaction [PCR]) test results 3+ months apart at consecutive study visits reported after the 6-month visit (i.e. 12-month visit or later); type-specific HPV negative (by urine or, if available, PCR) test results from baseline and 6 month visits. Months 42 and 48
Primary Incident persistent HPV-16 and/or HPV-18 cervical infections (According to Protocol [ATP] Cohort) ATP cohort defined as participants who received both vaccine doses within the protocol-defined schedule and no major protocol deviations. Baseline, 60 months
Primary Incident persistent HPV-16 and/or HPV-18 cervical infections (End-of-Study Survey Cohort) Baseline, 6 months
Secondary HPV-16 and HPV-18 specific enzyme-linked immunosorbent assay (ELISA) results Will be obtained from blood specimens (serum). To confirm that HPV-16 and HPV-18 ELISA results reflect neutralization potential, the HPV-16 and HPV- 18 pseudovirion neutralization (SEAP) assays will also be evaluated on a subset of individuals (30 per arm * 4 arms * 9 visits * 2 assays = 2160 assays) and correlated with the ELISA results. Up to 36 months
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