Clinical trial · Observational
Impact of HPV Vaccine On The Prevalence Of HPV In Norway
Impact of HPV Vaccine On The Prevalence Of Human Papillomavirus In Mouth And Vagina In Norway
NCT02934724CI-TRIAL-00048817completedClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The overall aim of the study is to assess the effect of school-based Human Papillomavirus (HPV) vaccination by comparing type-specific HPV prevalence between vaccinated and non-vaccinated women born in 1997. Women born in 1997, residence to Norway in 2009 (the year of vaccine initiation of the 1997-cohort) are invited to participate in the study.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Cervical Cancer | Malignant Cervical Neoplasm | CURATED_EXACT | 0.92 |
| Cervical Intraepithelial Neoplasia | Cervical Intraepithelial Neoplasia | ONTOLOGY_EXACT | 0.98 |
| Oropharyngeal Cancer | Malignant Oropharyngeal Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Questionnaire | Other | — | UNRESOLVED |
| Self sample from the oral cavity | Procedure | — | UNRESOLVED |
| Self sample from vagina | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- label
- Vaccinated
- description
- Women born in 1997, resident to Norway in 2009, vaccinated by the quadrivalent HPV vaccine. Interventions: * Self sample from vagina using Rover's Evalyn Brush * Self sample from the oral cavity using COPAN's FloqSwab * Questionnaire
- interventionNames
- Procedure: Self sample from vagina
- Procedure: Self sample from the oral cavity
- Other: Questionnaire
- label
- Un-vaccinated
- description
- Women born in 1997, resident to Norway in 2009, not vaccinated by the quadrivalent HPV vaccine Interventions: * Self sample from vagina using Rover's Evalyn Brush * Self sample from the oral cavity using COPAN's FloqSwab * Questionnaire
- interventionNames
- Procedure: Self sample from vagina
- Procedure: Self sample from the oral cavity
- Other: Questionnaire
Primary outcomes (1)
- measure
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 18 Years
- Maximum age
- 20 Years
Show eligibility criteria text
Inclusion Criteria: * Female * Born in 1997 * Resident of Norway in 2009 Exclusion Criteria: * Male * Born before or after 1997 * Non-resident of Norway in 2009
References
Publications (2)
- BACKGROUNDPLOS ONE Staff. Correction: An observational study comparing HPV prevalence and type distribution between HPV-vaccinated and -unvaccinated girls after introduction of school-based HPV vaccination in Norway. PLoS One. 2019 Dec 12;14(12):e0226706. doi: 10.1371/journal.pone.0226706. eCollection 2019. PMID 31830145
- RESULTEnerly E, Flingtorp R, Christiansen IK, Campbell S, Hansen M, Myklebust TA, Weiderpass E, Nygard M. An observational study comparing HPV prevalence and type distribution between HPV-vaccinated and -unvaccinated girls after introduction of school-based HPV vaccination in Norway. PLoS One. 2019 Oct 10;14(10):e0223612. doi: 10.1371/journal.pone.0223612. eCollection 2019. PMID 31600341