Phase 1 Thyroid Cancer Trial, Recruiting NCT03975231 Sponsor: City of Hope Medical Center Condition: Thyroid Cancer
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Phase 1 Thyroid Cancer Trial, Recruiting

NCT03975231
Recruiting Phase 1

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • You have been diagnosed with anaplastic thyroid cancer, confirmed by a tissue or cell sample (a result described as "consistent with" this diagnosis, alongside a thyroid mass, is also acceptable).
  • Your tumor has been tested and found to have a specific genetic change called a BRAF mutation (V600E or V600K).
  • You are well enough to carry out basic daily activities and care for yourself (your doctor will assess this using a standard scale).
  • Your blood test results show healthy enough levels of white blood cells, red blood cells, and platelets.
  • Your liver and kidney function blood tests are within an acceptable range.
  • If you are a woman who could become pregnant, you have had a negative pregnancy test within 14 days before starting the study medication.
  • You are willing and able to use highly effective contraception throughout the trial and for several months after the last dose (specific methods are required — confirm details with the trial site).
  • You are able to understand the study and are willing to sign a consent form agreeing to take part.

Who may not be able to join:

  • Your anaplastic thyroid cancer is at an early, removable stage (stage IVA) and you are planning to have surgery to remove it.
  • You have previously had radiotherapy to your neck or chest in a way that would overlap with any radiation planned in this trial.
  • You have received chemotherapy, targeted brain radiation, or external beam radiation within the last 2 weeks before starting the trial.
  • You have taken certain targeted cancer medicines (oral multikinase inhibitors) within the last week before starting the trial.
  • You are still experiencing significant side effects from a previous cancer treatment (with the exception of hair loss).
  • You have previously been treated with a strong BRAF inhibitor or MEK inhibitor (though prior use of sorafenib is allowed).
  • You are currently taking part in another clinical trial involving an experimental treatment.
  • You are currently taking certain medications that are not permitted alongside the trial drugs (confirm specific medications with the trial site).
  • You have another active cancer that is currently being treated.
  • You have brain metastases (cancer that has spread to the brain) that are not well controlled, unless you have been on a stable dose of steroids for more than one week, or have been off steroids for at least two weeks before joining (confirm details with the trial site).
  • You have a history of certain eye conditions, including a blocked vein in the retina, fluid build-up under the retina, uncontrolled glaucoma, or high pressure in the eye.
  • You have moderate to severe heart failure (as rated by your doctor).
  • You have an abnormal heart rhythm reading on an ECG (a specific electrical measurement of your heart is too high).
  • You have a serious uncontrolled illness, such as an active infection requiring IV antibiotics, unstable heart problems, or a mental health or personal situation that would make it difficult to follow the trial requirements.
  • You are pregnant or currently breastfeeding, as the trial drug may be harmful to an unborn or newborn baby.
  • You are known to be HIV-positive or are taking combination antiretroviral therapy, due to possible interactions with the trial drugs.

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 26 July 2026
Phase 1: approximately ~10% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Principal Investigator: Sasan Fazeli, MD, City of Hope Medical Center

Phone: 626-359-8111

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Phase 1
Registry
ClinicalTrials.gov
Start date
14 September 2020
Est. completion
5 October 2027

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Maximum tolerated dose of combination therapy of dabrafenib and trametinib administered concurrently with intensity-modulated radiation therapy (IMRT)

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 26 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov