NCT04892303RecruitingPhase 1
Combination Radiotherapy and Radiopharmaceutical Therapy Treatment Planning for Thyroid Cancer
Source: ClinicalTrials.gov · Last updated 30 Jun 2026
Brief summary (registry, in English)
The goal of this study is to evaluate combined radioactive iodine (RAI, 131-I) and external beam radiotherapy (XRT) to optimize the radiation dose delivered to treat well differentiated thyroid cancers (DTC) with iodine-avid metastases. The investigators hypothesize that precise dosimetric planning will permit this combined RAI-XRT radiotherapeutic approach to be safe and permit higher tumor radiation doses than could otherwise be delivered. Patients with metastatic well-differentiated DTC) that is not completely resectable with macroscopic invasion of tumor into cervical soft tissues and/or non-resectable distant metastases, are the target study population. The primary objective is to evaluate safety as defined by the incidence of maximum grade 3 or greater NCI CTCAE toxicity observed during the treatment period and for the first 30 days following completion of radiotherapy. Secondary endpoints will evaluate efficacy at 6 months and feasibility of this combination to deliver a minimum cumulative dose of 80 Gy to the index tumors selected prior to treatment initiation. The investigators plan to enroll 48 subjects at an accrual rate of 1 subject per month over a study duration of 4 years.
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 1
- Study type
- Interventional
- Enrollment
- 48 (estimated)
- First submitted
- 3 May 2021
- Start date
- Mar 2021
- Primary completion date
- Dec 2027
- Lead sponsor
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Diseases
- Thyroid cancer
- NCT number
- NCT04892303
What you commit to
- Study type: Interventional · Phase 1
- Planned participants: 48
- From Mar 2021 to the primary completion date, Dec 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Criteria the registry did not label
- Inclusion:
- 18 and 85 years, inclusive.
- Histologically confirmed papillary or follicular thyroid carcinoma, collectively referred to as differentiated thyroid carcinoma (DTC), that is incompletely responsive to initial surgery +/- 131-Iodine as established by anatomic imaging (CT, MRI, and Ultrasound).
- DTC that is not completely resectable with macroscopic invasion of tumor into cervical soft tissues and/or non-resectable distant metastases.
- Iodine avid residual disease, but with a sub-therapeutic level of lesional radioiodine uptake demonstrated in either a pre-treatment diagnostic scan or a previous post-treatment radioiodine scan, making it unlikely that the patient would benefit from radioiodine therapy alone.
- Adequate organ function, including: a) adequate renal function, defined as a measured creatinine clearance \>70 ml/min/1.73 m2 or normal radioisotope glomerular filtration rate (GFR); and b) adequate hematologic function, defined as a platelet count \> 50,000 cells/mm3 and an absolute neutrophil count (ANC) \> 500 cells/mm3
- Life expectancy of at least 8 weeks.
- Karnofsky performance status (KPS) \> 50%
- Patients must have adequately recovered from the effects of any prior chemotherapy, as determined by the treating physician and study team, based in part on organ function defined above. Toxicities from previous therapies must have recovered to CTCAE v5.0 grade 2 or better.
- Patients with previously identified cardiac disease will be eligible, as Sodium Iodide I-131 (131I NaI) is not expected to cause cardiac dysfunction
- Exclusion:
- Patient is pregnant or breastfeeding.
- Patient is sexually active, premenopausal, and does not agree to use accepted, effective forms of contraception.
- Any criteria that would contraindicate radioiodine therapy or external beam radiotherapy.
- Patient having alimentary toxic aleukia (ATA) low and intermediate risk tumors, not meeting the guidelines for either radioactive iodine (RAI) treatment or External beam radiotherapy (EBRT).
- Patient with advanced central nervous system (CNS) metastatic disease, critical lesions in the hip and spine, etc. that would make RAI treatment prior to EBRT potentially harmful, with respect to worsening of disease as a result of the recombinant thyroid-stimulating hormone (TSH) stimulation.
- Patients having recent exposure to iodinated contrast (within 6 weeks, that could render RAI treatment ineffective).
Age in the registry: 18 years to 85 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| The Johns Hopkins SKCCC Coordinator of this site? Confirm its status | Baltimore | United States | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.