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AzTrials

Papillary Thyroid CancerNCT07584447

Clinical Utility of Preoperative Thyroid GuidePx® Testing

An observational study of Papillary Thyroid Cancer and Papillary Thyroid Carcinoma, run by University of Calgary.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
Search all trials

Trial summary

The purpose of this study is to learn whether having Thyroid GuidePx® test results available before treatment may help patients with papillary thyroid cancer and doctors make better-informed treatment decisions. Read more about this study

Who is it for?
Ages 18 years and older
How many people
85 participants
Where
No sites listed yet
Study dates
Apr 2026to Apr 2029
Phase
Observational
Are there results?
Not yet: the study is under way

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: Patients newly diagnosed with papillary thyroid cancer (Bethesda V and VI cytology) with localized disease who can potentially be treated with lobectomy

Who may be able to join

  • Patients aged 18 years or older at the time of enrollment
  • English-speaking
  • Bethesda V or VI cytology following FNA of a thyroid nodule (papillary thyroid cancer)
  • Bethesda III or IV with ThyroSpec positive for BRAFV600E, TERT, rearrangements in BRAF, RET, NTRK1, NTRK3, RAS + TERT, RAS + EIF1AX, AKT1, PI3CA, CTNNB1, EGFR, rearrangements in ALK
  • Tumor 1- 4cm in size
  • No lymph node involvement on ultrasound
  • No gross extrathyroidal extension on ultrasound

Who cannot join

  • Prior thyroid operation
  • Distant metastatic disease
  • Personal history of thyroid cancer
  • History of whole-body radiation exposure or radiation to the head and neck region

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Elleine Allapitan contact

4032208440

elleine.allapitan@ucalgary.ca

Todd McMullen contact

780-407-1108

tpm1@ualberta.ca

About this study

The purpose of this study is to learn whether having Thyroid GuidePx® test results available before treatment may help patients with papillary thyroid cancer and doctors make better-informed treatment decisions.

Medical subject headings
Thyroid Cancer, Papillary

What participants receive

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

Study groups in NCT07584447
Study groupRoleWhat they receive
Thyroid GuidePx® Tested CohortNot described

What is being measured

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

  1. Decision impact

    Decision impact is defined as any change in treatment decision based on the Thyroid GuidePx® test results, including changes in surgical approach, reduction of unnecessary treatments, and addition of recommended treatments. Decision impact is measured using study-specific clinician and patient questionnaires administered before and after test results are available. Clinician decision impact is assessed by comparing treatments considered prior to testing with treatments recommended after review of test results, as well as clinician agreement with the statement "The test helped to make a treatment decision" rated on a 5-point Likert scale. Patient decision impact is assessed by patient report of whether the test helped them make a treatment-related decision (Yes/No) and the degree to which the test contributed to their care.

    A copy of the questionnaires can be uploaded as required (study document upload is currently disabled).

    Measured: 18 months

Secondary outcomes (4)

  1. Incidence of total thyroidectomies

    Incidence of total thyroidectomy of the tested cohort will be compared to historical controls.

    Measured: 18 months

  2. Incidence of completion thyroidectomies

    Incidence of completion thyroidectomy of the tested cohort will be compared to historical controls.

    Measured: 18 months

  3. Recurrence outcomes

    Recurrence outcomes, including biochemical recurrence (i.e., thyroglobulin ≥ 1 ng/mL) and/or tumor recurrence confirmed by imaging (i.e., CT, Ultrasound, etc.) of the tested cohort will be compared to historical controls. In the tested cohort, recurrence outcomes will be compared in Type 3 PTC (high risk) to Type 1 and 2 PTC (low risk).

    Measured: 36 months

  4. Costs

    Costs related to treatment and follow-up will be compared in the tested cohort will be compared to historical controls For the cost analysis, costs related to clinician visits, treatments and complications will be compared in the study cohort and historical controls.

    Measured: 18 months

Timeline

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

  1. First posted13 May 2026
  2. Study startApr 2026 (estimated)
  3. Primary completionApr 2028 (estimated)
  4. Study completionApr 2029 (estimated)

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
85 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07584447
Sponsor's protocol ID
HREBA.CC-25-0488
Status last verified
Jan 2026
First submitted
13 Jan 2026
Last updated
1 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Chan WWL, Chan S, Kwong DLW. Radioiodine Refractory Differentiated Thyroid Cancer. Methods Mol Biol. 2022;2534:243-257. doi: 10.1007/978-1-0716-2505-7_17.

    PubMed 35670980

  • Tuttle RM, Li D, Ridouani F. Percutaneous ablation of low-risk papillary thyroid cancer. Endocr Relat Cancer. 2023 Feb 11;30(3):e220244. doi: 10.1530/ERC-22-0244. Print 2023 Mar 1.

    PubMed 36629393

  • Pace-Asciak P, Russell JO, Tufano RP. The Treatment of Thyroid Cancer With Radiofrequency Ablation. Tech Vasc Interv Radiol. 2022 Jun;25(2):100825. doi: 10.1016/j.tvir.2022.100825. Epub 2022 Mar 10.

    PubMed 35551804

  • Yoon JH, Choi W, Park JY, Hong AR, Kim HK, Kang HC. Active Surveillance for Low-Risk Papillary Thyroid Carcinoma as an Acceptable Management Option with Additional Benefits: A Comprehensive Systematic Review. Endocrinol Metab (Seoul). 2024 Feb;39(1):152-163. doi: 10.3803/EnM.2023.1794. Epub 2024 Jan 22.

    PubMed 38417830

  • Zhang M, He X, Wu J, Xie F. Differences between physician and patient preferences for cancer treatments: a systematic review. BMC Cancer. 2023 Nov 18;23(1):1126. doi: 10.1186/s12885-023-11598-4.

    PubMed 37980466

  • Schumm MA, Shu ML, Kim J, Tseng CH, Zanocco K, Livhits MJ, Leung AM, Yeh MW, Sacks GD, Wu JX. Perception of risk and treatment decisions in the management of differentiated thyroid cancer. J Surg Oncol. 2022 Aug;126(2):247-256. doi: 10.1002/jso.26858. Epub 2022 Mar 22.

    PubMed 35316538

  • Chan S, Karamali K, Kolodziejczyk A, Oikonomou G, Watkinson J, Paleri V, Nixon I, Kim D. Systematic Review of Recurrence Rate after Hemithyroidectomy for Low-Risk Well-Differentiated Thyroid Cancer. Eur Thyroid J. 2020 Feb;9(2):73-84. doi: 10.1159/000504961. Epub 2020 Jan 28.

    PubMed 32257956

  • Craig S, Stretch C, Farshidfar F, Sheka D, Alabi N, Siddiqui A, Kopciuk K, Park YJ, Khalil M, Khan F, Harvey A, Bathe OF. A clinically useful and biologically informative genomic classifier for papillary thyroid cancer. Front Endocrinol (Lausanne). 2023 Sep 12;14:1220617. doi: 10.3389/fendo.2023.1220617. eCollection 2023.

    PubMed 37772080

  • Castagna MG, Maino F, Cipri C, Belardini V, Theodoropoulou A, Cevenini G, Pacini F. Delayed risk stratification, to include the response to initial treatment (surgery and radioiodine ablation), has better outcome predictivity in differentiated thyroid cancer patients. Eur J Endocrinol. 2011 Sep;165(3):441-6. doi: 10.1530/EJE-11-0466. Epub 2011 Jul 12.

    PubMed 21750043

  • Jin Y, Van Nostrand D, Cheng L, Liu M, Chen L. Radioiodine refractory differentiated thyroid cancer. Crit Rev Oncol Hematol. 2018 May;125:111-120. doi: 10.1016/j.critrevonc.2018.03.012. Epub 2018 Mar 22.

    PubMed 29650270

  • Craig SJ, Bysice AM, Nakoneshny SC, Pasieka JL, Chandarana SP. The Identification of Intraoperative Risk Factors Can Reduce, but Not Exclude, the Need for Completion Thyroidectomy in Low-Risk Papillary Thyroid Cancer Patients. Thyroid. 2020 Feb;30(2):222-228. doi: 10.1089/thy.2019.0274. Epub 2020 Jan 9.

    PubMed 31813323

  • Murthy SP, Balasubramanian D, Subramaniam N, Nair G, Babu MJC, Rathod PV, Thankappan K, Iyer S, Vijayan SN, Prasad C, Nair V. Prevalence of adverse pathological features in 1 to 4 cm low-risk differentiated thyroid carcinoma. Head Neck. 2018 Jun;40(6):1214-1218. doi: 10.1002/hed.25099. Epub 2018 Feb 8.

    PubMed 29417654

  • Kluijfhout WP, Pasternak JD, Lim J, Kwon JS, Vriens MR, Clark OH, Shen WT, Gosnell JE, Suh I, Duh QY. Frequency of High-Risk Characteristics Requiring Total Thyroidectomy for 1-4 cm Well-Differentiated Thyroid Cancer. Thyroid. 2016 Jun;26(6):820-4. doi: 10.1089/thy.2015.0495. Epub 2016 May 20.

    PubMed 27083216

  • Lang BH, Shek TW, Wan KY. The significance of unrecognized histological high-risk features on response to therapy in papillary thyroid carcinoma measuring 1-4 cm: implications for completion thyroidectomy following lobectomy. Clin Endocrinol (Oxf). 2017 Feb;86(2):236-242. doi: 10.1111/cen.13165. Epub 2016 Sep 1.

    PubMed 27467318

  • Dhir M, McCoy KL, Ohori NP, Adkisson CD, LeBeau SO, Carty SE, Yip L. Correct extent of thyroidectomy is poorly predicted preoperatively by the guidelines of the American Thyroid Association for low and intermediate risk thyroid cancers. Surgery. 2018 Jan;163(1):81-87. doi: 10.1016/j.surg.2017.04.029. Epub 2017 Nov 8.

    PubMed 29128185

Questions about this trial

What is this clinical trial studying?

An observational study of Papillary Thyroid Cancer and Papillary Thyroid Carcinoma, run by University of Calgary.

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 7 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: opening soon, as of the sponsor's last update on 1 Jun 2026. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Elleine Allapitan (4032208440, elleine.allapitan@ucalgary.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Decision impact (time frame: 18 months). 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 NCT07584447, which also lists 21 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 1 Jun 2026.

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