alexa Phase I II dose escalation study of angiotensin 1-7 [A(1-7)] administered before and after chemotherapy in patients with newly diagnosed breast cancer.
Microbiology

Microbiology

Journal of Medical Microbiology & Diagnosis

Author(s): Rodgers KE, Oliver J, diZerega GS

Abstract Share this page

Abstract PURPOSE: Multilineage cytopenias occur following myelosuppressive chemotherapy. Most hematopoietic agents differentiate along a single lineage and fail to prevent progressive cytopenias. Angiotensin 1-7 [A(1-7)] is a hematopoietic agent that stimulates the proliferation of multipotential and differentiated progenitor cells in cultured bone marrow and human cord blood. The purpose of this study was to determine the optimal biologic dose and the maximum tolerated dose of A(1-7). EXPERIMENTAL DESIGN: This study determined the safety and activity of A(1-7) following chemotherapy in patients with breast cancer. Toxicity was assessed by administering A(1-7) daily for 7 days followed by a 7-day washout prior to the first cycle of chemotherapy. Beginning 2 days after chemotherapy and continuing daily for at least 10 days, fifteen patients received five different A(1-7) doses and five patients received filgrastim as a comparator group over three cycles of chemotherapy. RESULTS: No dose-limiting toxicity was observed following A(1-7). The frequency of adverse events was slightly lower in A(1-7) than in filgrastim patients. No patient required a chemotherapy modification due to hematologic toxicity. There was an apparent differential dose-response sensitivity of the various lineages to A(1-7). At a dose of 100 microg/kg, A(1-7) reduced the frequency of grade 2-4 thrombocytopenia, anemia, and grade 3-4 lymphopenia as compared to filgrastim. CONCLUSION: These data suggest that A(1-7) may be beneficial in attenuating multilineage cytopenias following chemotherapy at a dose of 100 mug/kg per day. This article was published in Cancer Chemother Pharmacol and referenced in Journal of Medical Microbiology & Diagnosis

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords