Clinical trial NCT04281875: Assessing Benefits of NIRAF Detection for Identifying Parathyroid Glands During Total Thyroidectomy.
Official title: Assessing Benefits of Near Infrared Autofluorescence (NIRAF) Detection for Identifying Parathyroid Glands During Total Thyroidectomy.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Postoperative Hypoparathyroidism
Thyroid Neoplasms
Thyroid Cancer
Keywords: Total Thyroidectomy
Intraoperative Parathyroid Identification
Near Infrared Autofluorescence
Postoperative Hypocalcemia
Postoperative Hypoparathyroidism
Lead sponsor: Vanderbilt-Ingram Cancer Center
Sponsor class: OTHER
Collaborators: name: National Cancer Institute (NCI)
First posted: 2020-02-24
Enrollment: 160
Sex: ALL
Minimum age (years): 18
Maximum age (years): 99
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: NIRAF detection technology is used as an adjunctive tool for intraoperative parathyroid identification in patients who undergo total thyroidectomy (TTx) with or without lymph node dissection (LND) in the interventional group.

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 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).
Primary purpose: PREVENTION

Brief summary: This study describes a single center, randomized, single-blinded clinical trial to assess the clinical benefits of the use of near infrared autofluorescence (NIRAF) detection with an FDA-cleared device 'Parathyroid Eye (PTeye)' for identifying parathyroid glands (PGs) during total thyroidectomy (TTx). It compares risk-benefits and outcomes in TTx patients where NIRAF detection with PTeye for parathyroid identification is either used or not used.

Detailed description: Inadvertent damage or excision of a healthy parathyroid gland (PG) following a total thyroidectomy (TTx) could result in transient hypocalcemia (\< 6 months) in 5 - 35% of cases or permanent hypocalcemia (\> 6 months) in 7% of the patients (1, 2). In both of these circumstances, patients would require calcium and active vitamin D supplementation in addition to a potentially prolonged hospital stay and/or unplanned hospital readmission adding to unnecessary burden and healthcare costs. These complications could be minimized with label-free intraoperative PG identification using near infrared autofluorescence (NIRAF) detection with a fiber-probe based approach (3 - 5) as utilized in 'PTeye', which is medical device that was recently FDA-cleared (6). However, the true impact of this particular NIRAF-based approach on patient outcomes is yet to be determined

The aim of this prospective single blinded randomized study is to compare 2 groups of patients: TTx 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 TTx procedures with regard to postoperative hypocalcemia, PG identification, PG auto-transplantation and inadvertent resection rates compared to standard of care.

Eligibility criteria: Inclusion Criteria:

(i) All patients eligible for total thyroidectomy (TTx), with or without lymph node dissection. (includes patients undergoing a TTx who have undergone a prior neck exploration for parathyroid disease or other but have an intact thyroid).

(ii) All patients undergoing completion thyroidectomy.

Exclusion Criteria:

(i) Patients with concurrent parathyroid disease. (ii) Patients with incidental enlarged parathyroid discovered during TTx. (iii) Patients undergoing thyroid lobectomy/partial thyroidectomy.

Primary outcomes:
measure: Average Number of Parathyroid Glands Identified With High Confidence Per Patient
timeFrame: Immediate. During total thyroidectomy procedure.
Secondary outcomes:
measure: Postoperative Hypoparathyroidism/Hypocalcemia (Permanent)
timeFrame: 6 months after total thyroidectomy
measure: Postoperative Hypoparathyroidism/Hypocalcemia (Transient)
timeFrame: 5 days to 6 months after total thyroidectomy.
measure: Postoperative Hypoparathyroidism/Hypocalcemia (Immediate)
timeFrame: Within 24 hours after total thyroidectomy.
measure: Number of Frozen Sections Sent for Analysis (of Suspected Parathyroid Tissue).
timeFrame: Immediate. During total thyroidectomy procedure.
measure: Number of Auto-transplanted Parathyroid Glands
timeFrame: Immediate. During total thyroidectomy procedure.
measure: Number of Nights Spent in the Hospital After Total Thyroidectomy
timeFrame: 0 - 4 nights after total thyroidectomy
measure: Number of Inadvertently Resected Parathyroid Glands
timeFrame: Intraoperatively or on histology (within 24 hours post operation)
Other outcomes:
Locations:
city: Nashville
country: United States
facility: Vanderbilt University Medical Center
state: Tennessee
Study officials:
affiliation: Vanderbilt University Medical Center
name: Carmen C Solorzano, MD, FACS
role: PRINCIPAL_INVESTIGATOR
References:
citation: Antakia R, Edafe O, Uttley L, Balasubramanian SP. Effectiveness of preventative and other surgical measures on hypocalcemia following bilateral thyroid surgery: a systematic review and meta-analysis. Thyroid. 2015 Jan;25(1):95-106. doi: 10.1089/thy.2014.0101.
citation: Edafe O, Antakia R, Laskar N, Uttley L, Balasubramanian SP. Systematic review and meta-analysis of predictors of post-thyroidectomy hypocalcaemia. Br J Surg. 2014 Mar;101(4):307-20. doi: 10.1002/bjs.9384. Epub 2014 Jan 9.
citation: 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.
citation: Thomas G, McWade MA, Paras C, Mannoh EA, Sanders ME, White LM, Broome JT, Phay JE, Baregamian N, Solorzano CC, Mahadevan-Jansen A. Developing a Clinical Prototype to Guide Surgeons for Intraoperative Label-Free Identification of Parathyroid Glands in Real Time. Thyroid. 2018 Nov;28(11):1517-1531. doi: 10.1089/thy.2017.0716. Epub 2018 Sep 11.
citation: Thomas G, McWade MA, Nguyen JQ, Sanders ME, Broome JT, Baregamian N, Solorzano CC, Mahadevan-Jansen A. Innovative surgical guidance for label-free real-time parathyroid identification. Surgery. 2019 Jan;165(1):114-123. doi: 10.1016/j.surg.2018.04.079. Epub 2018 Nov 12.
citation: Voelker R. Devices Help Surgeons See Parathyroid Tissue. JAMA. 2018 Dec 4;320(21):2193. doi: 10.1001/jama.2018.18768. No abstract available.