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Gemzar Plus Vinorelbine: A Well Tolerated Treatment Option for
Elderly Patients with Advanced StageNon-Small Cell Lung Cancer
411 Cancer.com / Cancer Consultants
August 08, 2000
Lung cancer is by far the leading cause of cancer deaths in Europe
and North America. More than half of patients living with lung
cancer are older than 60 years at diagnosis and 30% are 70 years or
older. Very few specific studies have been conducted in elderly
patients with lung cancer, but new research has shown the
combination of chemotherapy agents Gemzar and vinorelbine may
improve the quality of life and extend survival time in patients who
are 70 years or older with advanced stage non-small cell lung
cancer.
Approximately 75% of persons who have lung cancer have a
type of cancer referred to as non-small cell lung cancer (NSCLC).
There are actually many different types of lung cancer that are
considered to be NSCLC which are named according to the type of cell
within the lung that the cancer originated. These include epidermoid
or squamous carcinoma, adenocarcinoma, large cell carcinoma,
adenosquamous carcinoma and undifferentiated carcinoma.
Treatment
options depend on the stage, or extent of spread of the cancer in
the body and may include surgery, chemotherapy, radiation and/or
biologic therapy (treatment utilizing the patient's immune system to
fight cancer). In stage IIIB NSCLC, the cancer has spread from the
lungs to the chest wall, diaphragm (the breathing muscle between the
chest and abdomen), and/or lymph nodes in the chest and neck. In
stage IV, the cancer has spread from the lungs to distant parts of
the body, many times including vital organs. Patients with stage
IIIB or IV NSCLC are said to have advanced or metastatic disease.
Elderly patients (70 years or older) with advanced stage NSCLC
historically have not tolerated chemotherapy. It has been suggested
that no treatment may be better than the toxic side effects incurred
by chemotherapy. Often, the elderly have other illnesses or medical
difficulties that exacerbate the side effects of chemotherapy
treatment, making this option prohibitively risky.
Recently, studies
involving two different chemotherapy drugs, Gemzar and vinorelbine
have been evaluated separately in the treatment of elderly patients
with NSCLC. Gemzar, when used alone as treatment, produces an
overall response rate of 20% with an average survival of 8 months
and is well tolerated by the elderly. Vinorelbine, when used alone,
improves the quality of life for patients and extends survival by
approximately 7 weeks versus those receiving only palliative care
(care to ensure comfort with no curative intent). A recent clinical
trial in Italy evaluated the combination of both Gemzar and
vinorelbine as treatment of patients 70 years or older with advanced
NSCLC. One hundred and twenty patients were treated with either a
combination of Gemzar plus vinorelbine or vinorelbine alone.
Forty-nine patients had stage IIIB NSCLC and 71 had stage IV. The
overall response rates were 22% for patients receiving the
combination treatment and 15% for vinorelbine alone. One year after
treatment, the survival rates were 30% for patients receiving Gemzar
plus vinorelbine and 13% for patients receiving vinorelbine alone.
The patients receiving combination therapy reported a delay in
negative symptoms caused by the cancer and an improved quality of
life over those receiving vinorelbine alone.
The results from this
study indicate that the combination of Gemzar and vinorelbine is a
well tolerated treatment option for elderly patients with advanced
stage NSCLC, and may improve survival time and quality of life.
Elderly persons with NSCLC may wish to talk with their doctor about
the risks and benefits of receiving this combination of chemotherapy
or participation in a clinical trial utilizing other promising new
therapies.
Two sources of information on ongoing clinical trials
include clinical trials listing services provided by the National
Cancer Institute (cancertrials.nci.nih.gov) and eCancerTrials.com.
eCancerTrials.com also performs personalized clinical trial searches
on behalf of patients. (Journal of Clinical Oncology, Volume 18, No
13, pp2529-2536, 2000)
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