Laryngeal Cancer Timeline: Chemotherapy First, Then Radiation or Surgery
For some advanced laryngeal cancers, a few cycles of chemotherapy are given first to see how the cancer responds. A good response leads to radiation to keep the voice box, and a poor response leads to surgery to remove it.
This page is one of the treatment-track timelines for advanced laryngeal cancer. The steps before treatment, how a track is chosen and the long-term follow-up schedule are covered on the laryngeal cancer treatment timelines page.
Teal words in the timeline are links. On a phone, swipe sideways to see the whole graphic.
Who follows this track
Chemotherapy first (induction chemotherapy) is another way to try to keep the larynx. It is used at some centers, especially for larger tumors or cancers with many involved lymph nodes, in people healthy enough for several strong drugs. Its advantage is that the response to chemotherapy helps sort out early who is likely to do well with radiation and who is better served by surgery. With the three-drug combination, about 7 in 10 people still had their larynx at 10 years in a large study. Compared with chemoradiation alone, it adds about 2 months to treatment.
Before treatment (weeks 0 to 3)
Biopsy, CT and PET-CT scans and the pathology result.
A dental check, swallow evaluation, dietitian visit and hearing test.
A port (a small device under the skin of the chest) is often placed for the chemotherapy.
Chemotherapy (about weeks 3 to 12)
Usually 2 to 3 cycles of chemotherapy, commonly three drugs (docetaxel, cisplatin and fluorouracil), each cycle 3 weeks apart.
Side effects include tiredness, nausea, mouth soreness, low blood counts with a risk of infection, hair loss, and effects on hearing and the kidneys. Medicines to support blood counts are often given.
Checking the response (about weeks 9 to 12)
After 2 or 3 cycles, a scope exam and scans show how much the tumor has shrunk and whether the vocal cords move better.
Tumor gone or nearly gone: radiation follows to keep the larynx.
Tumor partly shrunk: radiation, often with chemotherapy, or surgery, depending on the details.
Little or no shrinkage: a total laryngectomy follows, usually with radiation afterward. This happens for about 1 in 7 people. The details of the operation are on the laryngectomy alone timeline.
Radiation (about weeks 15 to 22, after a good response)
Radiation 5 days a week for about 7 weeks, often with weekly chemotherapy.
Side effects are those of chemoradiation: throat soreness, painful swallowing, hoarseness, dry mouth, skin changes, tiredness and weight loss. A feeding tube is used by some people and is usually temporary.
Recovery (months 6 to 12)
A PET-CT scan about 12 weeks after radiation shows whether any cancer remains. If it does, a laryngectomy (salvage surgery) is the usual next step.
Swallowing and voice improve gradually over the following months.
Quality of life on this track
The first scores ("at diagnosis") were collected after the cancer was diagnosed and before treatment began, so they already reflect some of the burden of the cancer itself, not a person's quality of life before the cancer developed.
Average scores (0 to 100; higher is better):
Overall: 75 at diagnosis, about 45 at the end of chemoradiation, and 84 at 1 year.
Mood: 75 at diagnosis, about 78 to 85 at the end of chemoradiation, and 91 at 1 year.
Swallowing: 76 at diagnosis, 92 six weeks into chemotherapy (as the tumor shrinks), 70 at 6 months, 78 at 1 year and 84 at 2 years.
Speech: 66 at diagnosis, 83 six weeks into chemotherapy, 67 at 6 months, 69 at 1 year and 76 at 2 years.
Where the numbers come from: the overall and mood scores are from a study of chemotherapy first followed by chemoradiation, which reported swallowing only up to the end of chemoradiation (75 at diagnosis and about 40 to 57 at the end, depending on the cisplatin schedule). The swallowing and speech scores are from a randomized European trial in people with advanced cancer of the larynx or lower throat that compared chemotherapy first and then radiation (the numbers shown) with chemotherapy and radiation given in alternating blocks; the alternating schedule caused more swallowing and speech trouble at 6 weeks but no lasting difference. The 1-year swallowing and speech points are left off the graphic for space. Swallowing and speech are shown as 100 minus the score of the head and neck questionnaire, so that higher means better. Averages describe groups of people, not what any one person will feel. The questionnaires are described on the quality-of-life questionnaires page.
Check-ups and long-term care
Check-ups follow the usual schedule counted from the end of radiation, each with a scope exam of the larynx (fiberoptic laryngoscopy).
Dental visits and possible fluoride treatments continue for life, because of the jaw-healing risk after radiation (osteoradionecrosis).
A thyroid blood test (TSH) every 6 to 12 months for the first 3 years checks for an underactive thyroid.
Swallowing exercises, hearing checks and lymphedema care, as needed.
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