Prevention of chemotherapy-induced anemia and thrombocytopenia by constant administration of stem cell factor

Purpose: Chemotherapy-induced apoptosis of immature hematopoietic cells is a major cause of anemia and thrombocytopenia in cancer patients. Although hematopoietic growth factors such as erythropoietin and colony-stimulating factors cannot prevent the occurrence of drug-induced myelosuppression, stem cell factor (SCF) has been previously shown to protect immature erythroid and megakaryocytic cells in vitro from drug-induced apoptosis. However, the effect of SCF in vivo as a single myeloprotective agent has never been elucidated. Experimental Design: The ability of SCF to prevent the occurrence of chemotherapy-induced anemia and thrombocytopenia was tested in a mouse model of cisplatin-induced myelosuppression. To highlight the importance of maintaining a continuous antiapoptotic signal in immature hematopoietic cells, we compared two treatment schedules: in the first schedule, SCF administration was interrupted during chemotherapy treatment and resumed thereafter, whereas in the second schedule, SCF was administered without interruption for 7 days, including the day of chemotherapy treatment. Results: The administration of SCF to cisplatin-treated mice could preserve bone marrow integrity, inhibit apoptosis of erythroid and megakaryocytic precursors, prevent chemotherapy-induced anemia, and rapidly restore normal platelet production. Treatment with SCF increased the frequency of Bcl-2/Bcl-XL-positive bone marrow erythroid cells and sustained Akt activation in megakaryocytes. Myeloprotection was observed only when SCF was administered concomitantly with cisplatin and kept constantly present during the days following chemotherapy treatment. Conclusions: SCF treatment can prevent the occurrence of chemotherapy-induced anemia and thrombocytopenia in mice, indicating a potential use of this cytokine in the supportive therapy of cancer patients. \uc2\ua92011 AACR

Drugs price and reimbursement regulation: comparators, endpoints and role of the cost-effectiveness

This document illustrates the results of a discussion of two multi-disciplinary expert panels on pricing and reimbursement of medicines. Experts work in different organizations. The discussion focused on comparator(s), endpoint(s), negotiation of prices of new medicines and/or indications to include in the List 648, as well as the role of cost-effectiveness in the price and reimbursement negotiation. The debate took place during the fourth edition of the Seminari di Mogliano, organized on the 30th of September/1st of October, 2021. The two panels agreed on a general need to enhance interaction among the different stakeholders, in the early assessment and negotiation phases, and to increase the transparency/reproducibility of the decisions taken. The experts have also emphasized the need (i) to improve clarity in the evaluation of additional therapeutic value and the place in therapy with respect to comparators and how comparators are identified; (ii) to create work groups to identify the most appropriate endpoint(s), for each therapeutic area and level of unmet needs; (iii) to provide for a systematic use of cost-effectiveness when an added therapeutic value is delivered by a new medicine. With regard to the 648 List, the experts advocated for an overall reorganization of the current rules governing the special uses of drugs