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Active, not recruitingNCT06788223PTeyeUpdated Jan 24, 2025

Intraoperative Identification of Parathyroid Adenomas Using PTeye™ and FLUOBEAM® LX: a Prospective Cohort Study

An observational study in Primary Hyperparathyroidism Due to Adenoma, sponsored by Aristotle University Of Thessaloniki. Active, not recruiting at 1 site in Greece. Per ClinicalTrials.gov, last updated 2025-01-24.

Sponsored by Aristotle University Of Thessaloniki · Observational

From the registry’s dates

  • Primary completion was expected by Jan 2025, 1 year 9 months ago, but the record still lists the study as active, not recruiting.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
40
Sex
All
01

Study summary

The goal of this observational study is to evaluate the efficacy of PTeyeTM device to confirm a parathyroid adenoma on a visually suspected tissue in comparison with the FLUOBEAM®LX device. The main questions it aims to answer is:

Is the PTeyeTM device effective in identifying the presence of a parathyroid adenoma? Which autofluorecence device (PTeye or FLUOBEAM®LX) is more effective in confirming the presence of a parathyroid adenoma? Participants will undergo parathyroidectomy under general anesthesia. During the procedure visually suspected tissue for parathyroid adenoma will be evaluated with the PTeye or FLUOBEAM®LX device for the presence of an adenoma (minute 0). Tissue will be reevaluated on minutes 1, 3, and 5 and before excision.

Read the detailed description

Objective: PTeye™ and FLUOBEAM® LX use autofluorescence to confirm visually suspected parathyroid tissue. Real-time intraoperative identification of parathyroid glands can be achieved by the application of both devices. The aim of the present study is to evaluate and compare the efficacy of PTeye™ and FLUOBEAM® LX in identifying parathyroid adenomas.

Methods: Patients undergoing parathyroidectomy due to a parathyroid adenoma will be enrolled prospectively in this study and will be randomly included to Group A (PTeye™) or Group B (FLUOBEAM® LX). After intraoperative identification of parathyroid adenomas and before tissue dissection (minute 0), the efficacy of both devices to confirm the adenomas will be evaluated. Re-evaluation will take place in minutes 1, 3 and 5 during tissue dissection and before adenoma excision.

02

Conditions studied

  • Primary Hyperparathyroidism Due to Adenoma

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03

In context

Parathyroid Neoplasms

63 studies on the registry are indexed under Parathyroid Neoplasms; 19 are open to participants now.

This study's planned enrollment of 40 is below the median of 100 across 20 observational studies indexed under Parathyroid Neoplasms.

Browse Parathyroid Neoplasms studies →

Lead sponsor

Aristotle University Of Thessaloniki is the lead sponsor of 282 studies on the registry; 55 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
No
Sampling method
Non-probability sample

Study population

Patients with primary hyperparathyroidism and parathyroid adenoma, fulfilling the AAES guidelines indications for parathyroidectomy.

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

  • Patients with Primary parathyroidism with parathyroid adenoma

Exclusion criteria

Exclusion Criteria:

  • Parathyroid Hyperplasia,
  • Secondary hyperparathyroidism
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
40 participants (estimated)
Target follow-up
1 Day
Patient registry
Yes

Groups and cohorts

  • PTeye

    Localizing Parathyroid adenoma with the PTeye device during parathyroidectomy

    Device: Parathyroidectomy

  • Fluobeam

    Localizing Parathyroid adenoma with the Fluobeam/ Fluoptics device

    Device: Parathyroidectomy

Interventions

  • DeviceParathyroidectomy

    Parathyroidectomy under general anesthesia

06

What researchers measure

Primary outcomes

  1. Identification of the parathyroid adenoma

    The percentage of adenomas identified by each device is assessed after intraoperative identification of parathyroid adenomas and before tissue dissection (minute 0). The same percentage will be re-evaluated on minutes 1, 3 and 5 during tissue dissection and before adenoma excision.

    Time frame: The minute of the identification of the parathyroid adenoma (minute 0). Reevaluation in minutes 1, 3, and 5 during tissue dissection and before excision.

07

Study locations

1 site
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References and documents

Individual participant data

Plan to share: Yes — Upon request

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report, Analytic code

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Nov 2024 (actual). Primary completion is estimated for Jan 2025, 2 months after the start.

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

Registered
Jan 2, 2025
First posted
Jan 23, 2025
StartActual
Nov 1, 2024
Primary completionEst.
Jan 31, 2025
CompletionEst.
Jan 31, 2025
Last update
Jan 24, 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 Jan 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06788223
Responsible party
Papavramidis Theodossis (Professor, Aristotle University Of Thessaloniki) — Principal investigator
First posted
Jan 23, 2025
Start date
Nov 1, 2024
Primary completion
Jan 31, 2025 (estimated)
Completion
Jan 31, 2025 (estimated)
Last update
Jan 24, 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 active, not recruiting, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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