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CompletedNCT04528407Updated Feb 13, 2025

BS-FU01 Follow-Up Study of FluBHPVE6E7 Study Subjects

An observational study in Safety Issues and HPV Infection, sponsored by BlueSky Immunotherapies GmbH. Completed at 1 site in Austria. Per ClinicalTrials.gov, last updated 2025-02-13.

Sponsored by BlueSky Immunotherapies GmbH · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
25
Sex
All
01

Study summary

This is a follow-up study for patients treated with FluBHPVE6E7 in previous interventional studies.

Read the detailed description

BS-FU01 is a follow-up study for patients treated with FluBHPVE6E7 in previous phase 1 and 2 interventional studies. The aim of the follow-up study is to assess the safety and immunogenicity of FluBHPVE6E7, changes in the HPV infection status, cervical cytology, and biodistribution after treatment with FluBHPVE6E7 in previous studies.

02

Conditions studied

  • Safety Issues
  • HPV Infection
03

In context

Papillomavirus Infections

505 studies on the registry are indexed under Papillomavirus Infections; 128 are open to participants now.

This study's enrollment of 25 is below the median of 400 across 151 observational studies indexed under Papillomavirus Infections.

Browse Papillomavirus Infections studies →

Lead sponsor

BlueSky Immunotherapies GmbH is the lead sponsor of 4 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Participants who enrolled in previous phase 1 or 2 clinical studies of FluBHPVE6E7

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient who enrolled in previous phase 1 or 2 clinical studies of FluBHPVE6E7
  • Negative pregnancy test at baseline
  • Written informed consent

Exclusion criteria

Exclusion Criteria:

  • Pregnancy, breastfeeding
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
25 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Interventions

  • OtherObservation without intervention

    This study is a follow-up study without intervention.

06

What researchers measure

Primary outcomes

  1. Number of participants with adverse events (type, frequency, severity).

    To assess the safety and tolerability of FluBHPVE6E7 by monitoring the type, frequency, and severity of AEs

    Time frame: 1 year

Secondary outcomes

  1. Hemagglutination Inhibition (HAI) Geometric Mean Titers (GMTs) following FluBHPVE6E7 administration

    To evaluate of the induction of systemic vector-specific antibodies by HAI assay

    Time frame: 1 year

  2. Induction of HPV-specific T-cell response following FluBHPVE6E7 administration

    To evaluate the induction of HPV16 E6- and E7-specific T-cells (percent %) by IFN-gamma ELISPOT analysis

    Time frame: 1 year

  3. Induction of HPV-specific CD4+ and CD8+ T-cells following FluBHPVE6E7 administration

    To evaluate the induction of HPV16 E6- and E7 specific T-cells (percent %) by ICS and FACS analysis

    Time frame: 1 year

  4. Local HPV clearance

    To evaluate the status of HPV-16 infection by HPV test (yes or no)

    Time frame: 1 year

  5. Cervical cytology

    To evaluate changes in cervical cytology by Pap smear. Results are reported as Pap results according to the Bethesda System

    Time frame: 1 year

  6. Biodistribution: Detection of FluBHPVE6E7 in blood samples

    To evaluate the presence of FluBHPVE6E7 by quantification of FluBHPVE6E7 genome copies in blood samples by RT-qPCR (copies per ml blood)

    Time frame: 1 year

  7. Biodistribution: Detection of FluBHPVE6E7 in nasal secretions

    To evaluate the presence of FluBHPVE6E7 by qualitative real-time PCR assay specific for influenza B virus (positive or negative)

    Time frame: 1 year

07

Study locations

1 site
  • University of Vienna
    Vienna, 1090, Austria
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2021 to primary completion in Jan 2025, 45 months.

Of 69 observational studies under Papillomavirus Infections, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 90. This study's 45 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 20, 2020
First posted
Aug 27, 2020
StartActual
Apr 9, 2021
Primary completionActual
Jan 31, 2025
CompletionActual
Jan 31, 2025
Last update
Feb 13, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 13, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04528407
Lead sponsor
BlueSky Immunotherapies GmbH
Responsible party
Sponsor
First posted
Aug 27, 2020
Start date
Apr 9, 2021
Primary completion
Jan 31, 2025
Completion
Jan 31, 2025
Last update
Feb 13, 2025

Oversight

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

Not currently enrolling

This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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