Purpose:
- Background:
- Standard therapy for mesothelioma is a combination of the drugs pemetrexed and cisplatin. However, the benefits of this treatment are limited, and in most treated patients the disease continues to worsen.
- SS1(dsFV)PE38 is a genetically engineered drug. It contains an antibody that binds to a certain protein on mesothelioma cells and a toxin (type of poison) made from a product of a bacterium called Pseudomonas aeruginosa. It is hoped that the antibody will attach to the cancer cells, allowing the toxin to enter and kill the cells.
- Objectives:
- To find out if SS1(dsFV)PE38, together with pemetrexed and cisplatin is safe and tolerable in patients with mesothelioma.
- To determine the maximum tolerated dose of SS1(dsFV)PE38 (the highest dose that does not cause unacceptable side effects).
- To see if SS1(dsFV)PE38 given with pemetrexed and cisplatin has any effect on patients’ tumors.
- To learn how the body breaks down SS1(dsFV)PE38.
- Eligibility:
- Patients 18 years of age and older with epithelial pleural mesothelioma whose disease cannot be cured with surgery, and have not had prior treatment with chemotherapy.
- Design:
- Treatment with pemetrexed, cisplatin and SS1(dsFV)PE38 in two 21-day cycles as follows:
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- Day 1 – Intravenous (through a vein) infusions of pemetrexed and cisplatin.
- Days 1 and 2 – Intravenous solution to prevent dehydration that might occur with SS1(dsFV)PE38.
- Days 1, 3 and 5 – Intravenous infusion of SS1(dsFV)PE38. Small groups (3 to 6) of patients are given SS1(dsFV)PE38 at a certain dose level. If the first group experiences no significant side effects, the next group a higher dose. This continues in succeeding groups until the maximum tolerated study dose (highest dose that patients can be given safely) is determined.
- Continuing standard treatment with additional cycles of pemetrexed and cisplatin.
- Evaluations during the treatment period:
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- Physical examination, including vital signs and body weight checks, and pregnancy test for women who can become pregnant.
- Questions about medications and side effects.
- Blood and urine tests.
- Disease evaluation with CT, chest X-ray, and possibly PET scans, lung function tests, pulse oximetry, performance of daily activities and quality-of-life questionnaires.
- Post-treatment evaluations:
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- Clinic visits at months 1, 3, 6, 12, 15, 18 and 21 for physical examination and disease assessment.
- End-of-study visit for bl…