Nodular melanoma is an aggressive form of skin cancer that requires swift medical attention. Understanding how this condition is treated—from surgery in early stages to advanced therapies for metastatic disease—can help patients and their families navigate the treatment journey and make informed decisions about their care.

Fighting an Aggressive Skin Cancer: What Treatment Aims to Achieve

When someone receives a diagnosis of nodular melanoma, the main goal of treatment is to remove the cancer completely and prevent it from spreading to other parts of the body. Unlike many other types of melanoma that grow outward across the skin’s surface first, nodular melanoma grows downward into deeper skin layers right from the start. This aggressive growth pattern means that early detection and prompt treatment are especially important.^[1]

The specific treatment approach depends heavily on how thick the melanoma is, whether it has spread to nearby lymph nodes (small bean-shaped organs that filter harmful substances and help fight infection), and whether cancer cells have traveled to distant organs. Doctors also consider the patient’s overall health, age, and any other medical conditions when designing a treatment plan. For very early-stage nodular melanoma confined to the skin’s surface, the chances of successful treatment are very good. However, because this type of melanoma can penetrate deeply in a matter of weeks or months, treatment often needs to be more extensive than for other melanoma types.^[4]

Treatment for nodular melanoma falls into two main categories: standard treatments that have been proven effective through years of medical practice, and newer experimental approaches being tested in clinical trials. Both aim to eliminate cancer, prevent recurrence, and help patients maintain the best possible quality of life. Understanding these options helps patients work with their medical team to choose the most appropriate path forward.

Proven Methods: Standard Treatment Approaches

Surgery remains the cornerstone of nodular melanoma treatment and is recommended whenever the cancer can be completely removed. The surgical approach is straightforward but requires precision. A surgeon cuts out the melanoma along with a border of healthy-looking skin around it—this border is called a surgical margin. The purpose of removing this extra tissue is to ensure that no cancer cells are left behind. The size of this margin depends on how thick the melanoma is. For thinner melanomas, a smaller margin may be sufficient, while thicker tumors require wider margins to reduce the risk of the cancer coming back.^[5]

After removing the melanoma, the tissue is sent to a laboratory where a doctor called a pathologist examines it under a microscope. The pathologist measures the tumor’s thickness and checks whether the edges of the removed tissue are free of cancer cells. This information helps determine whether additional surgery or other treatments are needed. If the melanoma is quite thick—more than 1 millimeter—doctors often recommend a sentinel lymph node biopsy. This procedure identifies the lymph node most likely to contain cancer cells if the melanoma has started spreading. If cancer is found in this sentinel node, the surgeon may need to remove additional lymph nodes from the area.^[5]

Sometimes, when a melanoma has been removed from a visible area like the face, or when the surgical site is very large, a plastic surgeon may perform reconstructive surgery. This can involve taking skin from another part of the body and using it to cover the wound—a procedure known as a skin graft. While this adds complexity to the surgery, it helps ensure better cosmetic results and proper healing.^[1]

For melanomas that have spread to lymph nodes or nearby skin areas, surgery to remove affected lymph nodes may be necessary. This more extensive procedure, called lymph node dissection, involves removing a group of lymph nodes in the area where the cancer has spread. While this surgery can be effective at removing cancer, it also carries risks of side effects such as swelling in the arm or leg, fluid buildup, and reduced mobility in the affected area.^[12]

When nodular melanoma cannot be completely removed with surgery—for example, if it has spread to multiple distant sites—other treatment methods become essential. Radiotherapy, also called radiation therapy, uses high-energy rays to destroy cancer cells. This treatment is sometimes used after surgery to kill any remaining cancer cells, or it can be used to shrink large melanomas and control symptoms in patients with advanced disease. Radiotherapy sessions are typically given daily over several weeks. The treatment itself is painless, but it can cause side effects such as skin redness, fatigue, and irritation in the treated area.^[12]

Chemotherapy involves using drugs to kill cancer cells throughout the body. These medications travel through the bloodstream and can reach cancer cells that have spread to distant organs. While chemotherapy has traditionally been an important cancer treatment, it does not work as well for melanoma as some newer therapies do. For this reason, chemotherapy is generally only used for nodular melanoma when other treatment options are not suitable or have stopped working. Common chemotherapy drugs can cause side effects including nausea, hair loss, fatigue, and increased risk of infections because they affect healthy cells along with cancer cells.^[12]

Breaking New Ground: Treatment in Clinical Trials

Medical research has revolutionized melanoma treatment in recent years, particularly for patients with advanced disease. Clinical trials are research studies that test new treatments to see if they are safe and effective. These trials happen in phases. Phase I trials focus primarily on safety, determining the right dose of a new drug and watching for side effects in a small number of patients. Phase II trials involve more patients and test whether the treatment actually works against the cancer. Phase III trials compare the new treatment directly against current standard treatments to see which works better.^[13]

Two types of newer therapies have shown particularly promising results for nodular melanoma: immunotherapy and targeted therapy. Immunotherapy works by helping a patient’s own immune system recognize and attack cancer cells. Melanoma cells are clever—they can hide from the immune system by sending signals that tell immune cells to ignore them. Immunotherapy drugs block these hiding signals, allowing the immune system to spring into action. Several immunotherapy drugs have been approved for melanoma treatment and are now considered standard care for advanced disease. These include medications that target proteins called PD-1, PD-L1, and CTLA-4, which are checkpoints that normally prevent the immune system from attacking the body’s own cells.^[15]

Clinical trials continue to test new immunotherapy approaches and combinations. Some trials are studying whether combining two different immunotherapy drugs works better than using just one. Others are testing immunotherapy after surgery to prevent melanoma from coming back—an approach called adjuvant therapy. Early results from many of these trials have been encouraging, with some patients experiencing significant tumor shrinkage or even complete disappearance of their cancer.^[13]

Targeted therapy represents another major advance in melanoma treatment. These drugs are designed to attack specific genetic mutations—changes in the cancer cell’s DNA—that cause the melanoma to grow. Before starting targeted therapy, doctors test a sample of the patient’s melanoma to look for specific mutations. About half of all melanomas have a mutation in a gene called BRAF. For patients whose tumors have this mutation, drugs called BRAF inhibitors can be remarkably effective at shrinking tumors, sometimes very rapidly. These drugs are often combined with another type of medication called MEK inhibitors, which block a different protein in the same cellular pathway. Using both drugs together tends to work better and delays the cancer from becoming resistant to treatment.^[15]

Clinical trials are also testing targeted therapies for melanomas with different genetic changes. Some tumors have mutations in a gene called NRAS, which is actually quite common in nodular melanoma specifically. Researchers are developing drugs to target this mutation as well. Other trials are looking at drugs that target different molecular pathways involved in melanoma growth and spread.^[8]

These clinical trials are being conducted at major cancer centers around the world, including in the United States, Europe, and other regions. Patients may be eligible to participate if their melanoma has certain characteristics, if they have not responded to standard treatments, or sometimes even as a first treatment option if the trial is testing a very promising approach. Participating in a clinical trial gives patients access to cutting-edge treatments that are not yet widely available, though it also involves some unknowns since these are experimental therapies.^[13]

Most common treatment methods

• Surgical excision
  • Removal of the melanoma along with a margin of healthy tissue surrounding it
  • Margin size depends on tumor thickness—typically 1-2 centimeters for thicker melanomas
  • Sentinel lymph node biopsy may be performed to check if cancer has spread to nearby lymph nodes
  • Lymph node dissection to remove multiple lymph nodes if cancer is found in sentinel node
  • Skin grafting may be needed to repair large surgical sites or improve cosmetic appearance
• Radiotherapy
  • Uses high-energy radiation to destroy cancer cells
  • May be used after surgery to eliminate remaining cancer cells
  • Can shrink large tumors and control symptoms in advanced disease
  • Typically delivered in daily sessions over several weeks
• Immunotherapy
  • Drugs that help the immune system recognize and attack melanoma cells
  • PD-1 inhibitors and CTLA-4 inhibitors that block cancer’s ability to hide from immune system
  • May be used alone or in combination for advanced melanoma
  • Can be given as adjuvant therapy after surgery to prevent recurrence
  • Being tested in clinical trials for various melanoma stages
• Targeted therapy
  • BRAF inhibitors for melanomas with BRAF gene mutations (found in about half of melanomas)
  • MEK inhibitors often combined with BRAF inhibitors for better results
  • Drugs targeting other genetic mutations like NRAS being developed in clinical trials
  • Requires genetic testing of tumor tissue before starting treatment
• Chemotherapy
  • Uses drugs that travel through bloodstream to kill cancer cells throughout the body
  • Generally reserved for cases where immunotherapy and targeted therapy are not suitable or have failed
  • Less effective for melanoma than newer treatment approaches