AzTrials
AzTrials

Primary HyperparathyroidismParaCatINCT04013100

Cohort Trial on Perioperative Localization Techniques of Parathyroid Adenomas

An observational study of Primary Hyperparathyroidism, run by IHU Strasbourg.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

A prospective database of consecutive patients with hyperparathyroidism subject to surgery is created. Preoperative workup and operative findings are recorded in this registry to allow comprehensive analysis. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Primary Hyperparathyroidism
What is being tested?
3D-VNE (virtual neck exploration)
How many people
235 participants
Where
No sites listed yet
Study dates
1 Jan 2014to 31 Dec 2018
How long will I take part?
1 Year
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients, male or female, with a confirmed biological diagnosis of primary hyperparathyroidism and for whom preoperative or intraoperative imaging is planned

Who may be able to join

  • Patients with biochemically confirmed PHPT who are scheduled for elective parathyroidectomy
  • Patient able to receive and understand trial information
  • Patient affiliated with the French social security system

Who cannot join

  • Patient expressing opposition to the use, after anonymization, of medical data for scientific research
  • Pregnant or breast-feeding woman
  • Patient under guardianship or curatorship
  • Patient under the protection of justice

About this study

A prospective database of consecutive patients with hyperparathyroidism subject to surgery is created. Preoperative workup and operative findings are recorded in this registry to allow comprehensive analysis.

Read the detailed description

This is a non-interventional, prospective, monocentric, non-randomized trial. All patients with biochemically confirmed Primary Hyperparathyroidism (PHPT) who are scheduled for elective parathyroidectomy in the Endocrine and Digestive Surgery Unit of the University Hospital of Strasbourg are considered. Data concerning the age, the operative date, the results of the pre-operative biological work-up (plasma calcium, phosphor, parathyroid hormone (PTH) level, vitamin D), the results of pre-operative imaging (CT (computerized tomography) scan, 99mTc SestaMIBI Scan, 3D-Vitual Neck Exploration (VNE)), the operative data (the surgical approach, the localization and the dimensions of the adenoma (s), the necessity to convert to classical approach and its reason, the values of the intra operative PTH), the pathology results, the biological work-up at follow-up (plasma calcium, phosphor, PTH, vitamin D) are prospectively recorded in the database.

Being tested
3D-VNE (virtual neck exploration)
Keywords
primary hyperparathyroidism, parathyroidectomy, 3D reconstruction, Virtual neck exploration
Medical subject headings
Hyperparathyroidism, Primary

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 3D-VNE (virtual neck exploration)Diagnostic test

    The 3D-VNE model is obtained with VP Planning software (Visible Patient, Strasbourg, France), using DICOM (Digital Imaging and Communications in Medicine) images of contrasted Computed Tomography scan of the neck in operative positioning.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Accuracy of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a 3D-VNE

    (true positives + true negatives) / number of patients

    Measured: Surgery time

Secondary outcomes (43)
  1. Sensitivity of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a 3D-VNE with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  2. Specificity of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a 3D-VNE with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  3. Positive predictive value of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  4. Negative predictive value of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  5. Accuracy of Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a Computed Tomography

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  6. Sensitivity of Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a Computed Tomography with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  7. Specificity of Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a Computed Tomography with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  8. Positive predictive value of Computed Tomography in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  9. Negative predictive value of Computed Tomography in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  10. Accuracy of 99mTc SestaMIBI Scan in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a 99mTc SestaMIBI Scan

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  11. Sensitivity of 99mTc SestaMIBI Scan in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a 99mTc SestaMIBI Scan with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  12. Specificity of 99mTc SestaMIBI Scan in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a 99mTc SestaMIBI Scan with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  13. Positive predictive value of 99mTc SestaMIBI Scan in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  14. Negative predictive value of 99mTc SestaMIBI Scan in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  15. Accuracy of cervical ultrasound in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a cervical ultrasound

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  16. Sensitivity of cervical ultrasound in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a cervical ultrasound with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  17. Specificity of cervical ultrasound in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a cervical ultrasound with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  18. Positive predictive value of cervical ultrasound in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  19. Negative predictive value of cervical ultrasound in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  20. Accuracy of cervical MRI in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a cervical MRI

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  21. Sensitivity of cervical MRI in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a cervical MRI with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  22. Specificity of cervical MRI in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a cervical MRI with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  23. Positive predictive value of cervical MRI in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  24. Negative predictive value of cervical MRI in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  25. Accuracy of 18F-Fluorocholine Positron Emission Tomography-Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  26. Sensitivity of 18F-Fluorocholine Positron Emission Tomography-Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a Computed Tomography with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  27. Specificity of 18F-Fluorocholine Positron Emission Tomography-Computed Tomography in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a Computed Tomography with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  28. Positive predictive value of 18F-Fluorocholine Positron Emission Tomography-Computed Tomography in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  29. Negative predictive value of 18F-Fluorocholine Positron Emission Tomography-Computed Tomography in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  30. Accuracy of parathyroid autofluorescence detection in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a parathyroid autofluorescence

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  31. Sensitivity of parathyroid autofluorescence detection in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a parathyroid autofluorescence detection with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  32. Specificity of parathyroid autofluorescence detection in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients who underwent a parathyroid autofluorescence detection with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  33. Positive predictive value of parathyroid autofluorescence detection in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  34. Negative predictive value of parathyroid autofluorescence detection in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  35. Accuracy of Intraoperative probe-based confocal endomicroscopy in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients

    (True positives + True negatives) / number of patients

    Measured: Surgery time

  36. Sensitivity of Intraoperative probe-based confocal endomicroscopy in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients with positive confirmed results

    Sensitivity = True Positives / (True Positives + False Negatives)

    Measured: Surgery time

  37. Specificity of Intraoperative probe-based confocal endomicroscopy in indicating the localization of the parathyroid adenoma(s) assessed by the ratio of patients with negative confirmed results

    Specificity = True Negatives / (True Negatives + False Positives)

    Measured: Surgery time

  38. Positive predictive value of Intraoperative probe-based confocal endomicroscopy in indicating the localization of the parathyroid adenoma(s)

    Positive predictive value = True Positives / (True Positives + False Positives)

    Measured: Surgery time

  39. Negative predictive value of Intraoperative probe-based confocal endomicroscopy in indicating the localization of the parathyroid adenoma(s)

    Negative predictive value = True Negatives / (True Negatives + False Negatives)

    Measured: Surgery time

  40. Percentage of patients with minimally invasive parathyroidectomy approach

    Number of patients with minimally invasive parathyroidectomy/ total number of operated patients

    Measured: Surgery time

  41. Percentage of patients with classical cervicotomy parathyroidectomy approach

    Number of patients with classical cervicotomy parathyroidectomy/ total number of operated patients

    Measured: Surgery time

  42. Percentage of patients necessitating conversion from minimally invasive parathyroidectomy approach to classical cervicotomy

    Number of patients necessitating conversion from minimally invasive parathyroidectomy approach to classical cervicotomy / total number of operated patients

    Measured: Surgery time

  43. Hyperparathyroidism recurrence rate

    Number of patients with recurrent / total number of operated patients

    Measured: 1 year postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2019
  2. Study start1 Jan 2014
  3. Primary completion31 Dec 2018
  4. Study completion31 Dec 2018

Why it stopped: Departure of the main investigator

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
235 participants (actual)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT04013100
Sponsor's protocol ID
18-006
Acronym
ParaCatI
Status last verified
Jan 2024
First submitted
5 Jul 2019
Last updated
9 Jan 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Sessa L, Lombardi CP, De Crea C, Raffaelli M, Bellantone R. Video-assisted endocrine neck surgery: state of the art. Updates Surg. 2017 Jun;69(2):199-204. doi: 10.1007/s13304-017-0467-3. Epub 2017 Jun 15.

    PubMed 28620896
  • D'Agostino J, Diana M, Vix M, Nicolau S, Soler L, Bourhala K, Hassler S, Wu HS, Marescaux J. Three-dimensional metabolic and radiologic gathered evaluation using VR-RENDER fusion: a novel tool to enhance accuracy in the localization of parathyroid adenomas. World J Surg. 2013 Jul;37(7):1618-25. doi: 10.1007/s00268-013-2021-x.

    PubMed 23558758
  • D'Agostino J, Diana M, Vix M, Soler L, Marescaux J. Three-dimensional virtual neck exploration before parathyroidectomy. N Engl J Med. 2012 Sep 13;367(11):1072-3. doi: 10.1056/NEJMc1201488. No abstract available.

    PubMed 22970967
  • D'Agostino J, Wall J, Soler L, Vix M, Duh QY, Marescaux J. Virtual neck exploration for parathyroid adenomas: a first step toward minimally invasive image-guided surgery. JAMA Surg. 2013 Mar;148(3):232-8; discussion 238. doi: 10.1001/jamasurg.2013.739.

    PubMed 23682370

Questions about this trial

What is this clinical trial studying?

An observational study of Primary Hyperparathyroidism, run by IHU Strasbourg.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 9 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Departure of the main investigator). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Accuracy of 3D-VNE (virtual neck exploration) in indicating the localization of the parathyroid adenoma(s) assessed by the number of patients with confirmed results divided by the total number of patients who underwent a 3D-VNE (time frame: Surgery time). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04013100, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jan 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in