Evaluating Impact of NIRAF Detection for Identifying Parathyroid Glands During Parathyroidectomy
NCT ID: NCT04299425
Last Updated: 2024-05-13
Study Results
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View full resultsBasic Information
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COMPLETED
NA
160 participants
INTERVENTIONAL
2020-03-13
2023-03-03
Brief Summary
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Detailed Description
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By easily being able to distinguish parathyroid from other tissues intraoperatively, postsurgical complications and associated costs may be reduced. The unique discovery of near infrared autofluorescence (NIRAF) in parathyroid tissues demonstrated that optical modalities that detect NIRAF can be utilized for non-invasive and label-free identification of parathyroid tissues with an accuracy as high as 97%. Since then, several research groups have explored the feasibility of localizing parathyroid glands using NIRAF detection with reasonable success, resulting in FDA clearance for marketing this optical technique. In this study, we plan to evaluate whether an FDA-cleared device called 'PTeye' (AiBiomed, Santa Barbara, CA) is beneficial or not, for the surgeon and patient during PTx operations. The results of such a study will help us to understand and assess the true impact of optical modalities such as PTeye on (i) improving the quality and efficiency of PTx surgeries and (ii) minimizing risk of postsurgical complications and related expenses.
The aim of this prospective single blinded randomized study is to compare 2 groups of patients: PTx patients operated using NIRAF detection technology with PTeye as adjunct tool (NIRAF+) vs. patients operated without the adjunct technology (NIRAF-). The main objective of this study is to assess the benefit of intraoperative use of NIRAF detection technology via PTeye during PTx procedures with regard to PG identification, duration of surgery, number of frozen section analysis performed, number of intraoperative PTH assays sent and incidence of postsurgical complications, if any and history of ER visits or hospitalization or repeat surgeries due to persistent high blood calcium after PTx procedure, compared to standard of care.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
Generic Name of Device: Parathyroid Autofluorescence Detection Device (NIRAF detection technology).
The Parathyroid Autofluorescence Detection Device consists of a disposable fiber-optic probe that emits non-ionizing radiation from a near infrared (NIR) 785 nanometer (nm) laser source, and also transmits the resulting tissue NIRAF to a photo-detector. The 785 nm laser source emits a maximum power of 20 milliwatts (mW). The device has an FDA clearance for clinical use in general surgeries and dermatological use (Class 2 device).
PREVENTION
SINGLE
Study Groups
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NIRAF Detection Technology +
Parathyroid gland identification will be performed with PTeye using NIRAF detection technology as an adjunctive tool in patients who undergo parathyroidectomy (PTx).
NIRAF Detection Technology
Near Infrared Autofluorescence (NIRAF) detection technology or 'PTeye' consists of a disposable fiber-optic probe that emits non-ionizing radiation from a NIR 785 nm laser source, and also transmits the resulting tissue NIRAF to a photo detector. The 785 nm laser source emits a maximum power of 20 mW. The device is FDA cleared for clinical use in general surgeries and dermatological use (Class 2 device).
After surgeon identifies a potential parathyroid gland in the surgical field, the surgeon places the fiber-optic probe of PTeye on suspect tissue and presses the device foot-pedal to activate tissue NIRAF measurement. Auditory beep at high frequency with a Detection Ratio \> 1.2 is interpreted by device as the suspect tissue being positive for parathyroid.
NIRAF Detection Technology -
Parathyroid gland identification will be performed with the naked eye of the surgeon without using PTeye - NIRAF detection technology in patients who undergo parathyroidectomy (PTx).
No interventions assigned to this group
Interventions
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NIRAF Detection Technology
Near Infrared Autofluorescence (NIRAF) detection technology or 'PTeye' consists of a disposable fiber-optic probe that emits non-ionizing radiation from a NIR 785 nm laser source, and also transmits the resulting tissue NIRAF to a photo detector. The 785 nm laser source emits a maximum power of 20 mW. The device is FDA cleared for clinical use in general surgeries and dermatological use (Class 2 device).
After surgeon identifies a potential parathyroid gland in the surgical field, the surgeon places the fiber-optic probe of PTeye on suspect tissue and presses the device foot-pedal to activate tissue NIRAF measurement. Auditory beep at high frequency with a Detection Ratio \> 1.2 is interpreted by device as the suspect tissue being positive for parathyroid.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Re-operative primary hyperparathyroidism patients who have undergone a failed prior PTx.
Exclusion Criteria
* Patients with secondary or tertiary hyperparathyroidism.
18 Years
99 Years
ALL
No
Sponsors
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National Cancer Institute (NCI)
NIH
Vanderbilt-Ingram Cancer Center
OTHER
Responsible Party
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Carmen Solorzano
Professor of Surgery Chair, Department of Surgery Director, Vanderbilt Endocrine Surgery
Principal Investigators
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Carmen C Solorzano, MD, FACS
Role: PRINCIPAL_INVESTIGATOR
Vanderbilt University Medical Center
Locations
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Vanderbilt University Medical Center
Nashville, Tennessee, United States
Countries
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References
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Simental A, Ferris RL. Reoperative parathyroidectomy. Otolaryngol Clin North Am. 2008 Dec;41(6):1269-74, xii. doi: 10.1016/j.otc.2008.05.008.
Cron DC, Kapeles SR, Andraska EA, Kwon ST, Kirk PS, McNeish BL, Lee CS, Hughes DT. Predictors of operative failure in parathyroidectomy for primary hyperparathyroidism. Am J Surg. 2017 Sep;214(3):509-514. doi: 10.1016/j.amjsurg.2017.01.012. Epub 2017 Jan 10.
Doherty GM, Weber B, Norton JA. Cost of unsuccessful surgery for primary hyperparathyroidism. Surgery. 1994 Dec;116(6):954-7; discussion 957-8.
Wachtel H, Cerullo I, Bartlett EK, Kelz RR, Karakousis GC, Fraker DL. What Can We Learn from Intraoperative Parathyroid Hormone Levels that Do Not Drop Appropriately? Ann Surg Oncol. 2015;22(6):1781-8. doi: 10.1245/s10434-014-4201-9. Epub 2014 Oct 30.
Mohebati A, Shaha AR. Imaging techniques in parathyroid surgery for primary hyperparathyroidism. Am J Otolaryngol. 2012 Jul-Aug;33(4):457-68. doi: 10.1016/j.amjoto.2011.10.010. Epub 2011 Dec 7.
Ahuja AT, Wong KT, Ching AS, Fung MK, Lau JY, Yuen EH, King AD. Imaging for primary hyperparathyroidism--what beginners should know. Clin Radiol. 2004 Nov;59(11):967-76. doi: 10.1016/j.crad.2004.04.005.
Sosa JA, Powe NR, Levine MA, Udelsman R, Zeiger MA. Profile of a clinical practice: Thresholds for surgery and surgical outcomes for patients with primary hyperparathyroidism: a national survey of endocrine surgeons. J Clin Endocrinol Metab. 1998 Aug;83(8):2658-65. doi: 10.1210/jcem.83.8.5006.
Chen H, Wang TS, Yen TW, Doffek K, Krzywda E, Schaefer S, Sippel RS, Wilson SD. Operative failures after parathyroidectomy for hyperparathyroidism: the influence of surgical volume. Ann Surg. 2010 Oct;252(4):691-5. doi: 10.1097/SLA.0b013e3181f698df.
Novis DA, Zarbo RJ. Interinstitutional comparison of frozen section turnaround time. A College of American Pathologists Q-Probes study of 32868 frozen sections in 700 hospitals. Arch Pathol Lab Med. 1997 Jun;121(6):559-67.
McWade MA, Sanders ME, Broome JT, Solorzano CC, Mahadevan-Jansen A. Establishing the clinical utility of autofluorescence spectroscopy for parathyroid detection. Surgery. 2016 Jan;159(1):193-202. doi: 10.1016/j.surg.2015.06.047. Epub 2015 Oct 9.
McWade MA, Paras C, White LM, Phay JE, Mahadevan-Jansen A, Broome JT. A novel optical approach to intraoperative detection of parathyroid glands. Surgery. 2013 Dec;154(6):1371-7; discussion 1377. doi: 10.1016/j.surg.2013.06.046.
Voelker R. Devices Help Surgeons See Parathyroid Tissue. JAMA. 2018 Dec 4;320(21):2193. doi: 10.1001/jama.2018.18768. No abstract available.
Cousart AG, Kiernan CM, Willmon PA, Thomas G, Wang TS, Gauger PG, Duh QY, Underwood HJ, Jackson A, Patel A, Mahadevan-Jansen A, Solorzano CC. Near-Infrared Autofluorescence for Parathyroid Detection During Endocrine Neck Surgery: A Randomized Clinical Trial. JAMA Surg. 2025 Sep 1;160(9):936-944. doi: 10.1001/jamasurg.2025.2233.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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IRB 192486
Identifier Type: -
Identifier Source: org_study_id
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