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Brief Title: Safety Study of BMX-001 (Radio-protector) in Patients With Newly Diagnosed Anal Cancer
Official Title: A Phase 1 Trial for Patients With Newly Diagnosed Anal Cancer Treated With Concurrent Radiation Therapy, 5FU, Mitomycin and BMX-001
Study ID: NCT03386500
Brief Summary: In this Phase 1/2 study, the investigators will conduct a safety and efficacy study of the combination of BMX-001 with standard radiation therapy (RT) and concurrent 5-fluorouracil (5FU)/mitomycin in newly diagnosed Anal Squamous Cell Carcinoma (ASCC) patients. The primary objectives are: Phase 1 - is to determine the maximum tolerated dose (MTD) of BMX-001 in ASCC patients receiving RT and concurrent 5FU/mitomycin chemotherapy.2. For phase II part: To examine the impact of BMX-001 on the overall acute ≥ grade 3 toxicity rate of the normal tissue including rectum, bladder, and skin in combination with RT and concurrent 5FU/mitomycin in treatment of newly diagnosed ASCC patients
Detailed Description: In this Phase 1/2 study, the investigators will conduct a safety and efficacy study of the combination of BMX-001 with standard radiation therapy (RT) and concurrent 5-fluorouracil (5FU)/mitomycin in newly diagnosed Anal Squamous Cell Carcinoma (ASCC) patients. At the time of writing of this protocol amendment, another Phase 1 study using BMX-001 with concurrent chemotherapy and radiation therapy in patient with newly diagnosed high-grade gliomas (BMX-HGG-001) has completed. This clinical trial has demonstrated no adverse effects in subcutaneous dosing up to 28 mg/subject load with half the loading dose (14 mg/subject) given biweekly for 8 weeks in 12 subjects. Three subjects were enrolled and dosed with 42 mg/subject load with half the loading dose given biweekly for 8 weeks. Of these three subjects, there was one dose-limiting toxicity of grade 3 tachycardia and grade 3 hypotension. The DLT in this subject occurred with the loading dose (42 mg sc). The patient was treated with fluids and hospital admitted for observation for 24 hours during which time the hypotension and tachycardia resolved. The cardiac rhythm was a sinus tachycardia and no other cardiac toxicity was observed. The tachycardia was assumed to have resulted from hypotension occurring following the sub-cutaneous injection of BMX-001 (42 mg). After the loading dose of BMX-001 and the described DLT, the subject continued on study and experienced no tachycardia or hypotension following administration of the subsequent 16 maintenance doses (20 mg sc). The sponsor determined that the Recommended Phase 2 Dose (RP2D) of BMX-001 is 28 mg/subject load followed by 14 mg/subject twice a week for up to eight weeks. This is the maximum dose that was tolerated with no adverse effects. The most common related toxicity seen in the Phase 1 BMX-HGG-001 trial was grade 1 injection site reaction. There is no apparent toxicity to end organ tissues or bone marrow. The completion of a Phase 1 clinical trial in patients with high-grade glioma undergoing brain radiation therapy plus chemotherapy with temozolomide has established the RP2D for BMX-001. The RP2D by sub-cutaneous injection is 28 mg/subject load followed by a maintenance dose of 14 mg/subject b.i.w. At the RP2D, there have been no BMX-001 dose limiting toxicities observed. Based on the completion of Phase 1 and establishment of a RP2D for this treatment regimen in patients undergoing radiation therapy and chemotherapy, the clinical trial described in this protocol of patients with newly diagnosed ASCC will proceed to Dose Level 3, after completion of Dose Level 1 and Dose Level 2, enrolling up to 20 subjects with a safety lead-in of 6 subjects. The reason for the safety lead-in is to confirm safety in subjects in this cohort receiving radiation therapy and 5FU/mitomycin. In order to evaluate the pharmacokinetics (PK) of BMX-001 in combination with current chemoradiation, blood samples will be drawn for analysis in the a minimum of three and up to 6 patients in enrolled in the safety lead-in. In this trial, the first dose of BMX-001 will be administered subcutaneously from 4 days up to 1 hour prior to the start of radiation treatment. Blood will be drawn for PK on the following days: Day 1 (before and after loading dose), Day 8, Day 22 and Day 36. Measures will be obtained at approximately the following times: -1 to 0 hour (before loading dose), 30 minutes after the drug is given, 4 hours post-dose, and 24 hours post-dose. This is described in Appendix A. Samples will be analyzed for BMX-001 using validated analytical methods at Dr. Ivan Spasojevic's laboratory at Duke University. Skin, GI, and GU symptoms will be measured on the day of screening, weekly during RT, 1 months, 4 months and 10 months after the completion of RT. Perianal skin will be assessed weekly during RT, 1 month, 4 months, and 10 months after completion of RT. Further follow up will be per standard of care.
Minimum Age: 19 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
University of Nebraska Medical Center, Omaha, Nebraska, United States
Name: Chi Lin, MD
Affiliation: University of Nebraska
Role: PRINCIPAL_INVESTIGATOR