Table of Contents
- What is Trametinib?
- How Trametinib Works
- Conditions Treated with Trametinib
- How Trametinib is Administered
- Ongoing Clinical Trials
- Potential Side Effects
What is Trametinib?
Trametinib is a medication used in cancer treatment. It is known by several names, including:
- Mekinist (brand name)
- GSK1120212
- JTP-74057
- MEK Inhibitor GSK1120212
How Trametinib Works
Trametinib targets and blocks proteins called MEK1 and MEK2. These proteins are part of a pathway in cells that controls growth and survival. In many types of cancer, this pathway is overactive, causing cancer cells to grow and spread uncontrollably. By inhibiting MEK1 and MEK2, trametinib can help stop or slow the growth of cancer cells.[4]
Specifically, trametinib blocks an enzyme pathway that cancer cells need to grow. When these proteins are blocked, cancer cell growth may be stopped, and the cancer cells may die.[5]
Conditions Treated with Trametinib
Trametinib is being studied and used to treat various types of cancer, including:
- Advanced or metastatic solid tumors: This refers to cancers that have spread from their original location to other parts of the body.[1]
- Thyroid cancer: Particularly radioiodine-refractory thyroid cancer, which doesn’t respond to standard radioactive iodine treatment.[2]
- Cervical cancer: Specifically for recurrent or persistent cervical cancer.[3]
- Oral cavity squamous cell cancer: A type of mouth cancer.[4]
- Multiple myeloma: A cancer of plasma cells in the bone marrow.[6]
- Non-small cell lung cancer (NSCLC): Particularly in patients with certain genetic mutations.[7]
- Langerhans Cell Histiocytosis (LCH): A rare disorder that can affect various parts of the body.[8]
How Trametinib is Administered
Trametinib is typically taken orally (by mouth) once daily. The dosage may vary depending on the specific condition being treated and the patient’s individual factors. Some key points about trametinib administration include:
- It is usually given in 28-day cycles.[6]
- The typical adult dose is 2 mg once daily.[7]
- For patients who cannot swallow pills, a liquid formulation may be available.[8]
- Dose adjustments may be necessary based on how well the patient tolerates the medication.[7]
Ongoing Clinical Trials
Trametinib is being studied in various clinical trials to better understand its effectiveness and safety in different types of cancer. Some ongoing areas of research include:
- Combining trametinib with other medications to enhance its effectiveness.[2]
- Using trametinib in patients with liver dysfunction.[5]
- Studying trametinib’s effects on specific genetic mutations in cancer cells.[7]
- Evaluating trametinib as a treatment for rare disorders like Langerhans Cell Histiocytosis.[8]
Potential Side Effects
Like all medications, trametinib can cause side effects. Common side effects may include:
- Skin rashes or other skin problems
- Diarrhea
- Fatigue
- Nausea
- Swelling (edema)
More serious side effects can occur, such as heart problems, eye problems, or lung inflammation. Patients should report any unusual symptoms to their healthcare provider promptly.[5]
It’s important to note that the side effects and their frequency can vary depending on the specific condition being treated and other factors. Your healthcare team will monitor you closely while you’re taking trametinib and can provide more personalized information about potential side effects.






