deltatrials
Active Not Recruiting OBSERVATIONAL NCT00867464

Extended Follow Up of Young Women in Costa Rica Who Received Vaccine for Human Papillomavirus Types 16 and 18 and Unvaccinated Controls

Extended Follow-Up of Young Women in Costa Rica Who Received Vaccination Against Human Papillomavirus Types 16 and 18 and Unvaccinated Controls

Sponsor: National Cancer Institute (NCI)

Conditions Anal Carcinoma Cervical Carcinoma Human Papillomavirus Infection Human Papillomavirus-Related Cervical Carcinoma Oral Cavity Carcinoma
Interventions Cytology Specimen Collection Procedure Laboratory Biomarker Analysis Long-term Follow-up Questionnaire Administration
Updated 39 times since 2017 Last updated: Feb 28, 2026 Started: Mar 30, 2009 Primary completion: Apr 30, 2026 Completion: Apr 30, 2026
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT00867464, this observational or N/A phase trial focuses on Anal Carcinoma and Cervical Carcinoma and remains ongoing. Sponsored by National Cancer Institute (NCI), it has been updated 39 times since 2009, reflecting substantial change activity. This study contributes to the evolving evidence base for cancer treatment protocols.

Status Flow

~Jan 2017 – ~May 2017 · 4 months · monthly snapshot~May 2017 – ~Jun 2017 · 31 days · monthly snapshot~Jun 2017 – ~Apr 2018 · 10 months · monthly snapshot~Apr 2018 – ~May 2018 · 30 days · monthly snapshot~May 2018 – ~Jun 2018 · 31 days · monthly snapshot~Jun 2018 – ~Jul 2018 · 30 days · monthly snapshot~Jul 2018 – ~Sep 2018 · 2 months · monthly snapshot~Sep 2018 – ~Nov 2018 · 2 months · monthly snapshot~Nov 2018 – ~Mar 2019 · 4 months · monthly snapshot~Mar 2019 – ~Apr 2019 · 31 days · monthly snapshot~Apr 2019 – ~May 2019 · 30 days · monthly snapshot~May 2019 – ~Jun 2019 · 31 days · monthly snapshot~Jun 2019 – ~Jul 2019 · 30 days · monthly snapshot~Jul 2019 – ~Oct 2019 · 3 months · monthly snapshot~Oct 2019 – ~Feb 2020 · 4 months · monthly snapshot~Feb 2020 – ~Mar 2020 · 29 days · monthly snapshot~Mar 2020 – ~May 2020 · 2 months · monthly snapshot~May 2020 – ~Jun 2020 · 31 days · monthly snapshot~Jun 2020 – ~Jul 2020 · 30 days · monthly snapshot~Jul 2020 – ~Sep 2020 · 2 months · monthly snapshot~Sep 2020 – ~Oct 2020 · 30 days · monthly snapshot~Oct 2020 – ~Dec 2020 · 2 months · monthly snapshot~Dec 2020 – ~Jan 2021 · 31 days · monthly snapshot~Jan 2021 – ~Jun 2021 · 5 months · monthly snapshot~Jun 2021 – ~Dec 2021 · 6 months · monthly snapshot~Dec 2021 – ~Feb 2022 · 2 months · monthly snapshot~Feb 2022 – ~Jul 2022 · 5 months · monthly snapshot~Jul 2022 – ~Sep 2022 · 2 months · monthly snapshot~Sep 2022 – ~Dec 2022 · 3 months · monthly snapshot~Dec 2022 – ~Feb 2023 · 2 months · monthly snapshot~Feb 2023 – ~Jul 2024 · 17 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Dec 2024 · 3 months · monthly snapshot~Dec 2024 – ~Mar 2025 · 3 months · monthly snapshot~Mar 2025 – ~Sep 2025 · 6 months · monthly snapshot~Sep 2025 – ~Nov 2025 · 2 months · monthly snapshot~Nov 2025 – ~Feb 2026 · 3 months · monthly snapshot~Feb 2026 – ~Mar 2026 · 28 days · monthly snapshot~Mar 2026 – present · 4 months · monthly snapshot

Change History

39 versions recorded

  1. Mar 2026 — Present [monthly]

    Active Not Recruiting

  2. Feb 2026 — Mar 2026 [monthly]

    Active Not Recruiting

  3. Nov 2025 — Feb 2026 [monthly]

    Active Not Recruiting

  4. Sep 2025 — Nov 2025 [monthly]

    Active Not Recruiting

  5. Mar 2025 — Sep 2025 [monthly]

    Active Not Recruiting

    Status: Unknown → Active Not Recruiting

▶ Show 34 earlier versions

  1. Dec 2024 — Mar 2025 [monthly]

    Unknown

    Status: Active Not Recruiting → Unknown

  2. Sep 2024 — Dec 2024 [monthly]

    Active Not Recruiting

  3. Jul 2024 — Sep 2024 [monthly]

    Active Not Recruiting

  4. Feb 2023 — Jul 2024 [monthly]

    Active Not Recruiting

  5. Dec 2022 — Feb 2023 [monthly]

    Active Not Recruiting

  6. Sep 2022 — Dec 2022 [monthly]

    Active Not Recruiting

  7. Jul 2022 — Sep 2022 [monthly]

    Active Not Recruiting

  8. Feb 2022 — Jul 2022 [monthly]

    Active Not Recruiting

  9. Dec 2021 — Feb 2022 [monthly]

    Active Not Recruiting

  10. Jun 2021 — Dec 2021 [monthly]

    Active Not Recruiting

  11. Jan 2021 — Jun 2021 [monthly]

    Active Not Recruiting

    Status: Completed → Active Not Recruiting

  12. Dec 2020 — Jan 2021 [monthly]

    Completed

    Status: Active Not Recruiting → Completed

  13. Oct 2020 — Dec 2020 [monthly]

    Active Not Recruiting

  14. Sep 2020 — Oct 2020 [monthly]

    Active Not Recruiting

  15. Jul 2020 — Sep 2020 [monthly]

    Active Not Recruiting

  16. Jun 2020 — Jul 2020 [monthly]

    Active Not Recruiting

  17. May 2020 — Jun 2020 [monthly]

    Active Not Recruiting

  18. Mar 2020 — May 2020 [monthly]

    Active Not Recruiting

  19. Feb 2020 — Mar 2020 [monthly]

    Active Not Recruiting

  20. Oct 2019 — Feb 2020 [monthly]

    Active Not Recruiting

  21. Jul 2019 — Oct 2019 [monthly]

    Active Not Recruiting

  22. Jun 2019 — Jul 2019 [monthly]

    Active Not Recruiting

  23. May 2019 — Jun 2019 [monthly]

    Active Not Recruiting

  24. Apr 2019 — May 2019 [monthly]

    Active Not Recruiting

  25. Mar 2019 — Apr 2019 [monthly]

    Active Not Recruiting

  26. Nov 2018 — Mar 2019 [monthly]

    Active Not Recruiting

  27. Sep 2018 — Nov 2018 [monthly]

    Active Not Recruiting

  28. Jul 2018 — Sep 2018 [monthly]

    Active Not Recruiting

  29. Jun 2018 — Jul 2018 [monthly]

    Active Not Recruiting

  30. May 2018 — Jun 2018 [monthly]

    Active Not Recruiting

  31. Apr 2018 — May 2018 [monthly]

    Active Not Recruiting

    Phase: NA → None

  32. Jun 2017 — Apr 2018 [monthly]

    Active Not Recruiting NA

  33. May 2017 — Jun 2017 [monthly]

    Active Not Recruiting NA

  34. Jan 2017 — May 2017 [monthly]

    Active Not Recruiting NA

    First recorded

Mar 2009

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • National Cancer Institute (NCI)
Data source: National Cancer Institute (NCI)

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations