Melanoma
KEYTRUDA OR KEYTRUDA QLEX FOR STAGE 3 MELANOMA
Understanding treatment and clinical trial results

Treatment overview for KEYTRUDA and KEYTRUDA QLEX
KEYTRUDA and KEYTRUDA QLEX are FDA-approved immunotherapies that may be used to prevent melanoma from coming back or spreading to other parts of the body after stage 3 melanoma and the lymph nodes that contain cancer have been removed by surgery.
It is not known if KEYTRUDA and KEYTRUDA QLEX are safe and effective in children younger than 12 years of age with melanoma.
Understanding options after surgery for stage 3 melanoma
Learn about options after surgery, the chance of melanoma coming back or spreading, and if treatment after surgery may be right for you. Talk to your doctor about KEYTRUDA or KEYTRUDA QLEX as a possible treatment option.
If you've had surgery to remove stage 3 melanoma, your doctor may recommend:
- Adjuvant (a-joo-vunt) treatment: Used after surgery and may help lower the chance of melanoma coming back
- Observation: Scheduling regular check-ups to see if the cancer has returned, also known as “watch and wait”
Even if you’ve had surgery to remove melanoma and the lymph nodes that contained cancer, there is a chance melanoma can return or spread. When melanoma returns, it’s called recurrence. Your doctor may recommend treatment after surgery that may help prevent cancer from coming back or spreading to other parts of the body.
Below are results from a study reviewing medical charts of patients with stage 3 melanoma who were recommended to “watch and wait”:
- 50% of people (125 out of 251) had their cancer return.
- 53% of people (66 out of 125) had their cancer spread to other parts of their body.
The same study also showed results of patients with stage 3 melanoma who had treatment after surgery:
- 33% of people (43 out of 129) had their cancer return.
- 47% of people (20 out of 43) had their cancer spread to other parts of their body.
Your care team may be made up of several health care providers and supporters. You may see different doctors at different times. Learn more about each doctor’s role in your treatment plan:
Dermatologist: A doctor who specializes in the skin and may diagnose melanoma. They may also monitor you after surgery to check that cancer has not returned.
Surgeon: A doctor who performs operations. Stage 3 melanoma may be removed by a surgeon. They may refer you to an oncologist after surgery.
Oncologist: A doctor who specializes in cancer and cancer treatment. Along with your dermatologist and surgeon, an oncologist may help develop the right treatment plan for you, including whether treatment after surgery is necessary.
If you have not been referred to an oncologist, talk to your surgeon or dermatologist about a referral.
Clinical Trial Results
Based on a KEYTRUDA QLEX study, the results were similar to KEYTRUDA
The effectiveness of KEYTRUDA QLEX for its approved uses has been shown based on data from clinical trials. In one of these trials, patients with a different type of cancer* received either KEYTRUDA QLEX or KEYTRUDA. This study showed these groups had similar amounts of medicine in their blood, with no notable differences in how well the medicines worked or in their safety. The effectiveness of KEYTRUDA QLEX is also based on clinical trials of KEYTRUDA for each of the approved uses.
*Advanced non–small cell lung cancer.
KEYTRUDA may help prevent melanoma from coming back or spreading to other parts of the body after stage 3 melanoma and lymph nodes that contain cancer have been removed by surgery
The clinical trial of KEYTRUDA in stage 3 melanoma included:
- People who had surgery to remove stage 3 melanoma
514 people who received 200 mg of KEYTRUDA every 3 weeks were compared to 505 people who received placebo.†
†Placebo = an inactive treatment given instead of an active treatment.
More people who received KEYTRUDA did not have their melanoma return after it was removed by surgery compared to people who received placebo
In the clinical trial, more people who received KEYTRUDA after surgery did not have their stage 3 melanoma return at the time of follow-up, compared to people who received placebo.
More people who received KEYTRUDA were alive and did not have their melanoma spread to other parts of the body compared to people who received placebo
At a later time point for the same trial, more people who received KEYTRUDA after surgery were alive and did not have their stage 3 melanoma spread to other parts of the body, compared to those who received placebo.
Understanding clinical trial results
There’s a lot to learn about your diagnosis. Your doctor may use several terms to talk about treatment goals, and it’s important you understand them.
Cancer did not return after surgery: One way doctors may decide how well a treatment works is to measure recurrence-free survival (RFS). RFS is the length of time from the end of treatment until there are signs or symptoms that the original cancer returned. RFS may also be called disease-free survival or relapse-free survival.
Cancer did not spread to other parts of the body: Another way doctors may decide how well a treatment works is to measure distant metastasis-free survival (DMFS). DMFS is the length of time from the start of treatment until there are signs the cancer has spread from where it started to other parts of the body.