Immunotherapy Treatment for Small and Non-Small Cell Lung Cancer

Overview

Immunotherapy is a type of treatment that uses substances from living organisms to help the body's immune system fight cancer. It is sometimes referred to as biologic therapy or biotherapy.

It works by boosting the function of the immune system, which is responsible for fighting infections and diseases. When the immune system is working well, it can detect and destroy abnormal cells, including cancer cells. Here are some facts about using immunotherapy to treat lung cancer:

Immunotherapy is used to treat lung cancer because it has shown potential in improving the survival rate for certain cancers. It has been shown to be particularly effective in treating non-small cell lung cancers, especially in patients with high levels of the PD-L1 protein, which usually allows cancer cells to hide from the immune system.
Research shows that combining immunotherapy with chemotherapy can improve survival rates in both small cell and non-small cell lung cancer, offering a stronger defense against tumor growth.
In some cases, immunotherapy may be used as a treatment option as soon as lung cancer is diagnosed. In other cases, it may be used when other treatments are not working effectively.
While immunotherapy is generally well-tolerated, research highlights that rare but serious immune-related side effects, like inflammation of the lungs (pneumonitis), can occur, requiring close monitoring during treatment.
Immunotherapy has gained approval from the Food and Drug Administration (FDA) for various types of cancers, including lung cancer. It has revolutionized the way doctors approach cancer treatment.

It's important to note that while immunotherapy has shown benefits for some people with lung cancer, not everyone will derive benefit from this treatment. Additionally, like any medical intervention, immunotherapy may cause potential side effects that need to be carefully monitored by healthcare professionals.

How Medication Works

Immunotherapy works by activating or strengthening the immune system so that it can recognize and attack cancer cells more effectively. Here's how immunotherapy works for treating lung cancer:

Introduction of antigens: Immunotherapy introduces antigens, which are foreign substances that trigger an immune response against cells. In the case of cancer vaccines, antigens are used to specifically target and attack cancer cells.
Boosting the immune system: Your immune system is responsible for protecting your body from infections and illnesses. It has specialized cells that are trained to identify and attack foreign substances, including cancer cells. However, cancer cells can be challenging to detect because they may appear similar to healthy cells and can grow and spread quickly.
Immune checkpoint inhibitors: Cancer cells sometimes take advantage of protein-based checkpoints in the immune system to avoid being destroyed. Immunotherapy drugs called immune checkpoint inhibitors block these checkpoints, making it more difficult for cancer cells to evade the immune system's attack.
Monoclonal antibodies: Monoclonal antibodies are proteins made in a laboratory that mimic the antibodies produced by your immune system. They can be designed to bind to specific parts of cancer cells, helping to stimulate your immune system to recognize and kill these cells. Monoclonal antibodies can also carry medication, toxins, or radioactive substances directly to cancer cells.
Lung cancer vaccines: Similar to vaccines for other diseases, lung cancer vaccines work by introducing antigens that target and attack cancer cells. These vaccines help train your immune system to recognize and destroy lung cancer cells.

Overall, immunotherapy for lung cancer aims to activate or strengthen the body's immune response against cancer cells. It has become an important treatment option for lung cancer and has significantly changed how doctors approach its treatment. Immunotherapy has been approved for various types of cancers in the United States and has shown promising results in improving patient outcomes.

How to Use Medication

Immunotherapy can be given to patients through various way, depending on the type of immunotherapy and the individual's condition. Here are some important points to know about using or taking immunotherapy:

Immunotherapy can be given through:

- IV injection: The medicine is directly injected into a vein.
- Pills or capsules: These are swallowed.
- Topical cream: This is rubbed on the skin, typically for lip cancer.
Treatment locations: Depending on the type of immunotherapy, a person may receive treatment at a clinic or outpatient unit in a hospital. Alternatively, they may be able to take pills or capsules at home.
Treatment periods: Immunotherapy is usually given in treatment periods followed by rest periods or cycles. This allows the body time to recover and respond between treatments. The frequency of treatments can vary, ranging from daily to weekly or monthly.

Now let's talk about the precautions and potential side effects of immunotherapy:

Precautions:
- It is important to inform your doctor about any medications, supplements, or herbal remedies you are taking before starting immunotherapy.
- Discuss any existing medical conditions or allergies with your doctor to ensure the treatment is safe for you.
Potential Side Effects: Immunotherapy can cause various side effects, which can range from mild to potentially life-threatening.
- Common side effects may include fever, cough, tiredness or weakness, nausea, itching, loss of appetite, skin rash, constipation, diarrhea, and muscle or joint pain.
- Some people may also experience a reaction at the injection site.
- In more severe cases, an autoimmune reaction may occur where the immune system attacks healthy cells in the body.

It's important to remember that everyone's experience with immunotherapy may be different. If you notice any new or changing side effects during treatment, it is crucial to talk to your doctor immediately. They can provide guidance and support in managing these side effects.

While complementary therapies like meditation, acupuncture, vitamin or mineral supplements, changes in diet, and exercise such as yoga may help manage side effects for some individuals, it's essential to discuss these options with your doctor before starting any management therapies.