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Immunotherapy is the use of medicines that help a person’s own immune system find and destroy cancer cells more effectively. It can be used to treat some people with esophagus cancer.
An important part of the immune system is its ability to keep itself from attacking normal cells in the body. To do this, it uses “checkpoint” proteins on immune cells, which act like switches that need to be turned on (or off) to start an immune response. Cancer cells sometimes use these checkpoints to avoid being attacked by the immune system.
Drugs called immune checkpoint inhibitors target these checkpoint proteins, which can help restore the immune response against esophagus cancer cells.
Pembrolizumab (Keytruda) and nivolumab (Opdivo) are drugs that target PD-1, a protein on T cells (a type of immune system cell). The PD-1 protein normally helps keep T cells from attacking other cells in the body. By blocking PD-1, these drugs boost the immune response against cancer cells. This can shrink some tumors or slow their growth.
Pembrolizumab can be used to treat some advanced cancers of the esophagus or gastroesophageal junction (GEJ), typically when treatments such as surgery and chemoradiation (chemotherapy plus radiation therapy) can’t be done. Pembrolizumab might be given by itself or along with chemotherapy (and possibly the targeted drug trastuzumab, if the cancer tests positive for HER2), depending on the situation.
In certain cases when no other treatment options are available, this drug can be used for people whose cancer has tested positive for specific gene changes, such as a high level of microsatellite instability (MSI-H), defects in one of the mismatch repair genes (dMMR), or a high tumor mutational burden (TMB-H).
This drug is given as an intravenous (IV) infusion, typically every 3 or 6 weeks.
Nivolumab can be used in different situations:
This drug is given as an intravenous (IV) infusion, usually once every 2, 3, or 4 weeks.
Ipilimumab (Yervoy) is another drug that boosts the immune response, but it has a different target. It blocks CTLA-4, another protein on T cells that normally helps keep them in check.
It can be used along with nivolumab as the first option to treat advanced squamous cell cancer of the esophagus that can’t be removed by surgery or that has spread to other parts of the body.
This drug is given as an intravenous (IV) infusion, usually once every 6 weeks when given in combination with nivolumab.
Common side effects of these drugs can include fatigue, cough, nausea, skin rash, poor appetite, constipation, muscle or joint pain, itching, fever, and diarrhea.
Other, more serious side effects happen less often. These can include:
Infusion reactions: Some people might have an infusion reaction while getting one of these drugs. This is like an allergic reaction, and can include fever, chills, flushing of the face, rash, itchy skin, feeling dizzy, wheezing, and trouble breathing. It’s important to tell your doctor or nurse right away if you have any of these symptoms while getting one of these drugs.
Autoimmune reactions: These drugs work by basically removing one of the safeguards on the body’s immune system. Sometimes the immune system starts attacking other parts of the body, which can cause serious or even life-threatening problems in the lungs, intestines, liver, hormone-making glands, kidneys, skin, or other organs.
It’s very important to report any new side effects to your health care team promptly. If serious side effects do occur, treatment may need to be stopped and you may get high doses of corticosteroids to suppress your immune system.
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.
Bendell J and Yoon HH. Progressive, locally advanced unresectable, and metastatic esophageal and gastric cancer: Approach to later lines of systemic therapy. Goldberg RM, ed. UpToDate. Waltham, MA: UpToDate Inc. https://www.uptodate.com (Accessed on January 22, 2020).
Ku GY and Ilson DH. Chapter 71 – Cancer of the Esophagus. In: Niederhuber JE, Armitage JO, Dorshow JH, Kastan MB, Tepper JE, eds. Abeloff’s Clinical Oncology. 6th ed. Philadelphia, Pa. Elsevier: 2020.
National Comprehensive Cancer Network (NCCN). NCCN Clinical Practice Guidelines in Oncology: Esophageal and Esophagogastric Junction Cancers. V.4.2019. Accessed at www.nccn.org/professionals/physician_gls/pdf/esophageal.pdf on Jan 21, 2020.
Posner MC, Goodman KA, and Ilson DH. Ch 52 - Cancer of the Esophagus. In: DeVita VT, Hellman S, Rosenberg SA, eds. DeVita, Hellman, and Rosenberg’s Cancer: Principles and Practice of Oncology. 11th ed. Philadelphia, Pa: Lippincott-Williams & Wilkins; 2019.
Last Revised: November 20, 2023
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