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Home > "E" Clinical Trials Conditions > Experimental Drug SS1(dsFv)-PE38 to Treat Cancer  Experimental Drug SS1(dsFv)-PE38 to Treat Cancer
Experimental Drug SS1(dsFv)-PE38 to Treat Cancer
For Condition: Mesothelioma,Ovarian Neoplasm,Squamous Cell Neoplasm
Status: Recruiting
Sponsor(s): National Cancer Institute (NCI) ,
Synopsis: This study will determine the dose of the experimental anticancer drug SS1(dsFv)-PE38 that can be given safely to patients. It will also look at how the body handles the drug, its side effects, and its effect on the tumor. SS1(dsFv)-PE38 will be tried in patients with solid tumors that have an antigen called mesothelin. This is a protein that is normally produced by cells lining body cavities, but has also been found on several types of cancer cells. The drug SS1(dsFv)-PE38 is composed of SS1, a protein that binds tightly to mesothelin, and PE38, parts of the Pseudomonas exotoxin (PE) protein, which can kill human cells if it gains entry to them. SS1(dsFv)-PE38 is designed to attach to mesothelin on the cancer cells and allow entry of the PE38, which will then destroy the cells. Patients 18 years of age and older with malignant mesothelioma or cancer of the head, neck, lung, cervix or ovaries may be eligible for this study. Candidates will have a medical history, physical examination, blood and urine tests, electrocardiogram (EKG) and chest X-ray, and tumor evaluation with computerized tomography (CT) scans or other imaging tests. Participants will receive SS1(dsFv)-PE38 intravenously (through a vein) for 10 consecutive days. Weight and vital signs (temperature, heart and breathing rate and blood pressure) will be recorded and blood tests will be done during and after the treatment to look for side effects. Physical exams and blood and urine tests will be done to evaluate side effects weekly for two weeks, or more often if side effects occur. Depending on side effects, treatments may be repeated every 4 weeks for a maximum of four treatments. Physical examinations and blood and urine tests will be repeated with each treatment, and X-rays or CT scans will be done four weeks after each treatment to measure the effect of treatment on the tumor. An EKG will be repeated after three courses of treatment, or sooner if treatment is stopped. After the final treatment, follow-up visits will be scheduled at 3-month intervals.
Details: This is a Phase I study of the SS1 (dsFv)-PE38 recombinant toxin in patients with selected advanced solid tumors which express mesothelin. SS1 (dsFv)-PE38 recombinant immunotoxin is composed of disulfide-stabilized variable region of anti-mesothelin monoclonal antibody, conjoined to PE38- the translocation and enzymatic domains of Pseudomonas exotoxin A. Safety of SS1 (dsFv)-PE38 was documented in mice at 400 micrograms/kilograms/day by continuous i.p. infusion x 7 days (total dose 2.8 mg/kg) and in monkeys at a dose of 100 micrograms/kilograms/day by i.v. bolus x 10 days (total 1.0 mg/kg). In this study, SS1 (dsFv)-PE38 will be administered by continuous i.v. infusion for 10 days; Phase I starting dose will be 8 micrograms/kilograms/day (total 0.08 mg/kg). Patients with tumor response or stabilization may be retreated to a maximum of four courses. The primary objective of this study is to determine the dose-limiting toxicities and pharmacokinetics of SS1 (dsFv)-PE38 when given by continuous infusion in cancer patients. Secondary objectives include a preliminary response assessment, to evaluate anti-tumor activity in selected measurable malignancies for which mesothelin expression has been determined, as well as immunologic and pharmacokinetic objectives.
Eligibility:
Study Type: Interventional, Treatment, Safety
Minimum Age/Maximum Age: /
Genders: Both
Protocol Entry Criteria: INCLUSION CRITERIA: Histopathologic diagnosis of one of the following malignancies: Malignant mesothelioma; Ovarian carcinoma, all epithelial histologies, including primary peritoneal and fallopian tube carcinoma. This includes tumors involving ovary and also bowel, which could possibly have originated from bowel, such as appendiceal carcinoma. Pancreatic cancer; Squamous cell cancer of the lung; Squamous cell cancer of the head and neck; Squamous cell cancer of the cervix. Recurrent unresectable disease in patients who have received or are unwilling to receive standard therapies or anticancer therapies that are expected to prolong survival and improved quality of life. Tumor (initial or recurrent; greater than or equal to 30% of tumor cells) must be positive (at least 1+) for mesothelin by immunohistochemistry. No concurrent anti-tumor treatment. At least 4 weeks since any prior anti-tumor therapy, with recovery from side effects and at least one week since any hematopoetic growth factor therapy. Measurable or evaluable tumor documented within 4 weeks prior to study entry. Age greater than or equal to 18 years. Life expectancy greater than or equal to 12 weeks. Performance Status (ECOG) 0-2. Adequate organ function, including: ANC greater than or equal to 1,000/mm(3); Plts greater than or equal to 75,000/mm(3); Creatinine less than or equal to Institutional Upper Limit Normal (ULN) or Creatinine less than or equal to 2.0 mg/dL if 24-hour urinary Creatinine Clearance is greater than or equal to 50 cc/min, Ca (2+) and total Bilirubin less than or equal to upper limit normal (ULN); AST (SGOT) and ALT (SGPT) less than or equal to 2.5 x ULN; Albumin greater than or equal to 3.0 gm/dL; S0(2) greater than 92% (room air). Sign informed consent, in accordance with institutional criteria. EXCLUSION CRITERIA: Patient may not have any of the following: Any known CNS or spinal cord involvement by tumor. Detectable antibody to SS1 (dsFv)-PE38. Concurrent antitumor therapy. Cardiovascular condition NY Heart Association Grade II-IV, or any clinically-significant pericardial effusion. An infection requiring parenteral antibiotics, HIV infection, or seropositivity for Hepatitis B and Hepatitis C. Be pregnant or nursing. Females of child-bearing potential must use an effective method of contraception.
Total Enrollment: 40
Location and Contact Information:
National Cancer Institute (NCI) *Recruiting*
Bethesda, Maryland, 20892
United States
Recruiting Clinical Support Center/NCI 1-888-624-1937
Additional Information:
Study ID Numbers: 010011; 01-C-0011
Study Start Date: October 18, 2000
Record last reviewed: October 1, 2003
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00006416
Other Squamous Cell Neoplasm Studies:
1. Study of Gene Induction Mediated by Sequential Decitabine/Depsipeptide Infusion in Patients with Pulmonary and Pleural Malignancies
2. Study of Decitabine in Preventing Tumor Growth
3. Experimental Drug SS1(dsFv)-PE38 to Treat Cancer
4. Treatment of Peritoneal Cancer with Surgery, Perfused Heated Cisplatin, and Chemotherapy
Related Studies:
Other Squamous Cell Neoplasm Clinical Trials
Other Maryland Clinical Trials
Other Bethesda Clinical Trials
Experimental Drug SS1(dsFv)-PE38 to Treat Cancer
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