Testicular cancer medical therapy

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

Before 1970, the young man with recurrent testicular cancer was destined to have rapid progression and death from disseminated disease. Currently, although 7000 to 8000 new cases of testicular cancer occur in the United States yearly, only 400 men are expected to die of the disease. Much of this improvement is due to advances in adjuvant therapy.

Due to the risk of subsequent metastasis, post-surgical adjuvant therapy may be offered to the patient following orchiectomy. The type of adjuvant therapy depends largely on the histology of the tumor and the stage of progression at the time of surgery. These two factors contribute to the risk of recurrence, including metastasis. Adjuvant treatments may involve chemotherapy, radiotherapy or careful surveillance by frequent CT scans and blood tests by oncologists.

The three basic types of treatment are surgery, radiation therapy, and chemotherapy.

Surgery is performed by urologists; radiation therapy is administered by radiation oncologists; and chemotherapy is the work of medical oncologists.

Medical Therapy

Radiation therapy

Radiation may be used to treat stage II seminoma cancers, or as adjuvant (preventative) therapy in the case of stage I seminomas, to minimize the likelihood that tiny, non-detectable tumors exist and will spread (in the inguinal and para-aortic lymph nodes). Radiation is never used as a primary therapy for nonseminoma because a much higher dose is required and chemotherapy is far more effective in that setting.

Chemotherapy

As an adjuvant treatment, use of chemotherapy as an alternative to radiation therapy is increasing, because radiation therapy appears to have more significant long-term side effects (for example, internal scarring, increased risks of secondary malignancies, etc.). Two doses of carboplatin, typically delivered three weeks apart, is proving to be a successful adjuvant treatment, with recurrence rates in the same ranges as those of radiotherapy.

Chemotherapy is the standard treatment, with or without radiation, when the cancer has spread to other parts of the body (that is, stage II or III). The standard chemotherapy protocol is three to four rounds of Bleomycin-Etoposide-Cisplatin (BEP). This treatment was developed by Dr. Lawrence Einhorn at Indiana University. An alternative, equally effective treatment involves the use of four cycles of Etoposide-Cisplatin (EP).

While treatment success depends on the stage, the average survival rate after five years is around 95%, and stage I cancers cases (if monitored properly) have essentially a 100% survival rate (which is why prompt action, when testicular cancer is a possibility, is extremely important).

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