Using rhTSH to improve radioiodine treatment for thyroid cancer

A Randomized, Open-label, Multi-center, Controlled Phase Ⅲ Study to Evaluate the Safety and Efficacy of Recombinant Human Thryoid Stimulating Hormone(rhTSH) for Adjuvant Radioiodine Ablation Therapy in Postoperative Patients With Differentiated Thyroid Cancer

Phase 3 Interventional Suzhou Zelgen Biopharmaceuticals Co.,Ltd · NCT04964284

This study is testing if using a special hormone injection before radioiodine treatment helps people with thyroid cancer get better results than not using the hormone.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment328 (estimated)
Ages18 Years and up
SexAll
SponsorSuzhou Zelgen Biopharmaceuticals Co.,Ltd Industry-sponsored
Locations1 site (Beijing, Beijing)
Trial IDNCT04964284 on ClinicalTrials.gov

What this trial studies

This study evaluates the efficacy and safety of recombinant human thyroid-stimulating hormone (rhTSH) in patients with differentiated thyroid cancer who have undergone total or near-total thyroidectomy. Participants are randomized into two groups: one receiving rhTSH injections followed by oral radioiodine, and the other remaining hypothyroid before receiving radioiodine. The goal is to determine which method is more effective for thyroid remnant ablation. The study aims to provide insights into optimizing treatment protocols for thyroid cancer patients.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with diagnosed differentiated papillary or follicular thyroid carcinoma who have undergone thyroidectomy within the past year.

Not a fit: Patients with recent whole body scans, other malignancies, or serious comorbid conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could enhance the effectiveness of radioiodine therapy, leading to better outcomes for patients with differentiated thyroid cancer.

How similar studies have performed: Previous studies have shown promising results with rhTSH in similar contexts, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects voluntarily sign the informed consent form (ICF).
* Age ≥ 18 years old, either male or female.
* Patients with diagnosed differentiated papillary or follicular thyroid carcinoma, including papillary-follicular variant, characterized as pT 1-3, N 0-1or Nx, and M0.
* Eastern Cooperative Oncology Group (ECOG) score of 0-2;
* Expected life expectancy is greater than 12 weeks;
* Patients with a total or near-total thyroidectomy within 12 months prior to randomized.
* Low iodine diet for two weeks prior to randomized.

Exclusion Criteria:

* patients with recent history of 131I whole body scan within 2 weeks prior to randomized.
* Pregnant or breast feeding women.
* patients with other malignancies (exception for in situ cervix uterine cancer, baso cellular skin cancer or breast cancer in remission)
* Subjects who are unsuitable to the trial in combination with other serious diseases, as identified by the investigator.
* Subjects who have participated in another clinical trial of a new drug or medical instrument within 1 months before screening.

Where this trial is running

Beijing, Beijing

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Differentiated Thyroid Cancer
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.