You may get chemotherapy during different phases of your treatment. The process may be relatively the same, but the types of drugs you get may change.
The goal of remission induction is to kill leukemia cells so you no longer have symptoms. During this phase of treatment, you will most likely need to stay in the hospital. You may receive these drugs in pill form, by injection or IV, or in more than one way.
You receive chemotherapy in cycles over a period of time. That means you may take the drugs more than once, with drug-free periods of time in between. Having chemotherapy in cycles helps in many ways. It allows the drugs to kill more cancer cells because cells aren't all dividing at the same time. It allows your body to rest from the treatment, since chemotherapy also damages normal cells. It also gives you an emotional break between treatments.
It's standard treatment for all phases of ALL to involve more than 1 chemotherapy drug at a time. This is called combination chemotherapy. This treatment reduces the chance that your cancer will develop a resistance to one drug and improves the chance of successful treatment. Which drugs you get, as well as how often you receive them, depends on many factors. These factors include your general health, the phase of the leukemia, and your doctor's experience.
During the remission induction phase, you usually receive chemotherapy drugs for ALL in a hospital. These are examples of drugs used during this phase.
Cytoxan or Neosar (cyclophosphamide)
Oncovin or Vincasar (vincristine)
Decadron or Dexameth (dexamethasone) or prednisone
Adriamycin (doxorubicin) or Cerubidine (daunorubicin)
For ALL, it is common to receive intrathecal chemotherapy to kill or prevent the spread of cancer in your spine or brain. You receive this form of chemotherapy through a lumbar puncture or spinal tap, which is a shot in the lower part of your spine. You will likely receive a combination of methotrexate and Cytosar-U (cytarabine). A lumbar tap can cause discomfort. Your doctor will tell you how many treatments you will receive. Your doctor may decide to give chemotherapy this way only during the remission induction phase, or he or she may decide to give it during later phases of treatment.
If your doctor plans long-term treatment for your brain, a surgeon can insert an Omaya reservoir under your scalp that can take 15 to 20 minutes. After the procedure, your doctor can use a small, drum-like device to deliver chemotherapy quickly and painlessly to your brain. The Omaya reservoir can also be used to take a sample of brain fluid which may allow the doctor to see if the treatment has been effective and to detect any sign of infection. When you no longer need the reservoir, the surgeon will remove it.
The maintenance phase of chemotherapy may last 2 to 3 years. You need this phase of treatment because there still may be traces of leukemia cells in your body. The most common regimen for maintenance treatment includes:
Folex (methotrexate) and Purinethol (mercaptopurine)
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