NCT02609685 · Cedars-Sinai Medical Center
Active Surveillance of Papillary Thyroid Microcarcinoma
(PMCAS)
What this study is about
The purpose of this study is to better understand the outcomes of active surveillance (observation) instead of immediate surgery, which is the current the usual treatment for papillary thyroid microcarcinoma (PTMC). Patients with a 1.5 cm or smaller thyroid nodule(s) with papillary thyroid carcinoma will be eligible for the study.
View original scientific description
The purpose of this study is to better understand the outcomes of active surveillance (observation) instead of immediate surgery, which is the current standard of care for papillary thyroid microcarcinoma (PTMC). Patients with a 1.5 cm or smaller thyroid nodule(s) with papillary thyroid carcinoma will be eligible for the study.
Interventions
OTHER
Active Surveillance
Subjects will be actively observed for disease progression (condition worsens) instead of receiving immediate surgery, considered standard of care.
Primary outcome measures
Rate of disease progression
Time frame: From time of diagnosis up to10 years of follow-up
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Pathologically confirmed Bethesda V or VI thyroid nodules with papillary thyroid carcinoma or high clinical suspicion, or pathologically confirmed Bethesda III or IV nodules with BRAF mutation.
- 0 cm or smaller nodules by ultrasonographic criteria
- Ability to understand and the willingness to sign a written informed consent and HIPAA Authorization form
- Must be able to read and write English fluently to participate in the questionnaire portion of the study
Exclusion criteria
- High-grade or poorly differentiated PTC variants
- Central or lateral neck lymphadenopathy suspicious for PTC
- Unfavorable nodule location (e.g. Near dorsal surface (by recurrent laryngeal nerve); Adjacent to trachea (risk of cartilage invasion)
- History of radiation to neck
Where
- Los Angeles, California
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 7, 2026 · Source of record for eligibility and locations