Predictive Factors of Long-term Survivor (LTS) of Patients With Recurrent or Metastatic, Radio-iodine Resistant Differentiated Thyroid Cancer (RRDTC) After Lenvatinib: a Multicenter Study (PFL)

November 4, 2026 updated by: Aurora Mirabile, IRCCS San Raffaele

This is an observational, pharmacological, retrospective, multicenter study and involves a total of 4 enrolling centers. This study aims to demonstrate that, in real-world clinical practice, the survival of RAI-refractory patients treated with Lenvatinib is significantly greater than the 30 months described by Gianoukakis et al., reaching-and in some cases exceeding-5 years.

Study Overview

Status

Not yet recruiting

Study Type

Observational

Enrollment (Estimated)

65

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with recurrent or metastatic, radio-iodine resistant differentiated thyroid cancer (RRDTC) treated with Lenvatinib

Description

Inclusion Criteria:

  • Adult patients (≥ 18 years of age)
  • Patients capable of providing informed consent
  • Patients with a diagnosis of differentiated thyroid carcinoma confirmed by cytological or histological examination, showing disease progression within the last 12 months
  • Patients with radioiodine-refractory differentiated thyroid carcinoma (i.e., patients with one or more metastatic lesions without RAI uptake; patients with progressive lesions lacking RAI uptake within the last 12 months; or patients who have received a cumulative RAI dose > 600 mCi)
  • ECOG performance status of 0-2
  • Patients who are treatment-naïve or with disease recurrence following first-line therapy
  • Patients with blood pressure ≤ 150/90 mmHg and adequate bone marrow, liver, and renal function (creatinine clearance > 30 mL/min calculated using the Cockcroft-Gault formula)

Exclusion Criteria:

  • Patients with medullary or anaplastic thyroid carcinoma
  • Patients with impaired renal function or proteinuria (urinary protein >1 g/24 h)
  • Patients with a positive medical history of congestive heart failure, unstable angina, ischemic heart disease, ischemic stroke, or cardiac arrhythmias in the last 6 months
  • Patients with a prolonged QT interval on pre-treatment ECG
  • Patients previously treated with Lenvatinib

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: CASE_ONLY
  • Time Perspectives: RETROSPECTIVE

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Median Duration of Overall Response (DOR) in a Real-World Setting
Time Frame: 5 years

Assessment of the median duration of overall response (DOR) in a real-world setting in patients with locally advanced or metastatic radioiodine-refractory differentiated thyroid cancer who achieved stable disease (SD), complete response (CR), or partial response (PR) following treatment with lenvatinib.

5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

December 1, 2026

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

June 1, 2027

Study Registration Dates

First Submitted

November 4, 2026

First Submitted That Met QC Criteria

November 4, 2026

First Posted (Actual)

November 10, 2026

Study Record Updates

Last Update Posted (Actual)

November 10, 2026

Last Update Submitted That Met QC Criteria

November 4, 2026

Last Verified

November 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PFL

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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