Phase 3 Thyroid Cancer Trial, Active, Not Recruiting NCT03690388 Sponsor: Exelixis Condition: Thyroid Cancer
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Trial results

AI generated results 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

According to the results reported on ClinicalTrials.gov, this trial (NCT03690388) enrolled 187 people in total — 125 received a medicine called cabozantinib and 62 received a placebo (a dummy treatment with no active ingredient). The trial was measuring two main things: how long participants went without their disease getting worse (called "progression-free survival"), and how many participants had their disease visibly shrink or disappear (called "objective response rate"). The reported data shows that for progression-free survival — the time until the disease showed signs of growing or the person passed away — the figure for the cabozantinib group was listed as "NA" (meaning this particular summary number was not reported in the data submitted), while the placebo group's figure was 1.9 months. For the objective response rate, the reported data shows that 15% of participants in the cabozantinib group had their disease shrink or disappear (a complete or partial response), compared with 0% in the placebo group. It is also worth noting that of the 62 people in the placebo group, 36 did not complete the study, as was also the case for 36 of the 125 people in the cabozantinib group. These are the results as reported to ClinicalTrials.gov. They are not medical advice — always discuss what they mean for you with your doctor.

These are the results as reported to ClinicalTrials.gov, not medical advice. Verify independently with the trial site and discuss what they mean for you with your doctor.

Phase 3 Thyroid Cancer Trial, Active, Not Recruiting

NCT03690388
Active, Not Recruiting Phase 3 🇦🇺 Australian site

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 a type of thyroid cancer called "differentiated thyroid cancer," confirmed by a lab test on a tissue or cell sample.
  • Your cancer can be measured on a scan according to a standard set of medical guidelines.
  • You have already been treated with radioactive iodine (a common thyroid cancer treatment) or your doctors have decided that treatment is not suitable for you.
  • You have previously been treated with at least one of two specific targeted cancer drugs — lenvatinib or sorafenib — for your thyroid cancer (having taken up to two of these types of drugs is allowed).
  • You are generally well enough to carry out light activity and care for yourself, as assessed by a standard health scoring system (confirm with trial site).

Who may not be able to join:

  • You have previously been treated with cabozantinib, a certain type of BRAF-targeting drug, more than two targeted thyroid cancer drugs of a specific type, more than one immunotherapy treatment, or have had systemic chemotherapy.
  • You have taken any targeted cancer tablet or capsule medicine within roughly the last 2–5 weeks before joining the trial.
  • You have received an anticancer antibody treatment or chemotherapy within the last 4 weeks before joining the trial.
  • You have had radiation therapy to a bone affected by cancer within the last 2 weeks, or any other radiation therapy within the last 4 weeks before joining the trial.
  • You have cancer that has spread to the brain or the area around the brain, unless it has been successfully treated and is well controlled (confirm with trial site).

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 28 July 2026
Phase 3: approximately ~65% 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

Australian sites

Exelixis Clinical Site #17, St Leonards, New South Wales
Exelixis Clinical Site #25, Waratah, New South Wales
Exelixis Clinical Site #86, Bedford Park, South Australia
Exelixis Clinical Site #24, Melbourne, Victoria
Exelixis Clinical Site #12, Herston,

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

GP referral letter

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Trial details

Status
Active, Not Recruiting
Phase
Phase 3
Sponsor
Exelixis
Registry
ClinicalTrials.gov
Start date
5 October 2018
Est. completion
19 August 2020

Where this trial is recruiting

🇦🇷 Argentina 🇦🇺 Australia 🇦🇹 Austria 🇧🇪 Belgium 🇧🇷 Brazil 🇨🇦 Canada 🇭🇷 Croatia 🇨🇿 Czechia 🇫🇷 France 🇩🇪 Germany Hong Kong 🇭🇺 Hungary 🇮🇱 Israel 🇮🇹 Italy 🇲🇽 Mexico 🇳🇱 Netherlands 🇵🇱 Poland 🇷🇴 Romania 🇷🇺 Russia 🇰🇷 South Korea 🇪🇸 Spain 🇹🇼 Taiwan 🇹🇭 Thailand 🇬🇧 United Kingdom 🇺🇸 United States

5 site(s) in Australia. Confirm current status and contact details directly with the trial site.

Primary endpoints

Progression Free Survival (PFS); Objective Response Rate (ORR)

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: 28 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