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PET-guided External Beam Radiotherapy in Differentiated Thyroid Cancer

18F-FDG PET-guided External Beam Radiotherapy in Iodine-refractory Differentiated Thyroid Cancer

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03191643
Enrollment
16
Registered
2017-06-19
Start date
2011-10-01
Completion date
2016-01-31
Last updated
2017-06-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Differentiated Thyroid Cancer

Brief summary

Description of the role of a post-operative external beam radiotherapy in patients with differentiated thyroid cancer.

Detailed description

The role of post-operative external beam radiotherapy (EBRT) in differentiated thyroid cancer is still discussed considering the low clinical aggressiveness and the availability of ablative 131Iodine therapy. However, there is a subgroup of tumors which lose the ability to capture Iodine over time. This study wants to describe the role of a post-operative external beam radiotherapy in patients with differentiated thyroid cancer.

Interventions

None listed

Sponsors

IRCCS Azienda Ospedaliero-Universitaria di Bologna
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* detectable thyroglobulin (Tg), * negative post-metabolic radiotherapy whole body scintigraphy, * no surgical indications.

Exclusion criteria

* prior radiotherapy in the head and neck area * pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Progression free survival (PFS)6 monthsProgression-free survival (PFS) after radiotherapy is evaluated with CT-scan and 18F FDG PET-scan. Also laboratory tests are performed (HTG serum level evaluation in case of biochemical recurrence).

Secondary

MeasureTime frameDescription
toxicities6 monthsAcute and late toxicities after radiotherapy are assessed with CTCAE v. 4.03 and EORTC-RTOG scales, respectively.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026