In this study, deterioration of anemia requiring transfusion was a major reason for the poor tolerance of the combination. that the clinical application Lofexidine of ruxolitinib-based combinations is worth waiting for. gene mutation was important in the diagnosis and treatment of these patients. In 2011, ruxolitinib was approved as a potent inhibitor of for the treatment of patients with MF with the International Prognostic Scoring System (IPSS) intermediate riskC2/high-risk [5, 6]. In addition to (encoding myeloproliferative Lofexidine leukemia protein) and (encoding calreticulin) are also common [7, 8]. Ruxolitinib has significant advantages in spleen reduction and increasing 5-year OS [9C12]; however, it is often accompanied by treatment-related adverse events (AEs), such as infections and cytoreduction [13C16]. Numerous studies have identified safety problems when using ruxolitinib alone. These problems are mainly divided into hematological and non-hematological AEs. Hematological AEs mainly include Lofexidine anemia and thrombocytopenia, and non-hematological AEs include headache, dizziness, and bronchitis [9, 12, 17C19]. These AEs represent a challenge to clinical medicine strategy making and also reduce the quality of life of patients. Other JAK inhibitors have been studied; however, because of their corresponding toxicities, it is hard for them to exceed or replicate the efficacy of ruxolitinib in the short term [20, 21]. Ruxolitinib-based combinations that maintain the efficacy of ruxolitinib and reduce the impact of AEs have aroused interest. To improve the efficacy of ruxolitinib and to address the unmet clinical needs, a few combination approaches have been tested in MF . Ruxolitinib combined with danazol could significantly improve PLT levels and anemia Anemia is a common manifestation of MF. Ruxolitinib can aggravate cytopenia, which becomes a factor in worsening the disease. Ruxolitinib dose reduction or discontinuation to offset or reduce the associated cytopenia is used clinically. In this case, some patients would benefit less or lose the opportunity to receive ruxolitinib treatment. The mechanism of danazol in the treatment of anemia is not yet clear. Previous studies on MF-related anemia showed that the use of danazol alone or combined with other drugs could improve hemoglobin levels [23, 24]. Danazol could significantly improve platelet (PLT) levels and anemia (without transfusion dependency) . Thus, ruxolitinib combined with danazol has become a new and feasible treatment. The trial results of ruxolitinib combined with danazol showed that 31% of patients (in whom anemia could be assessed) had increased hemoglobin by more than 1.0?g/dL (Table ?(Table1).1). Of the 9 patients with prior JAK inhibitor exposure, 5 patients (55.5%) and 8 patients (88.9%) had stable or increasing Hgb levels and PLT levels, respectively. According to the criteria of the International Working Group for Myelofibrosis Research and Treatment (IWG-MRT), stable disease (SD), clinical improvement (CI), partial response (PR), and progressive disease Rabbit Polyclonal to NMDAR1 (PD) were 64%, 21%, 8%, and 8%, respectively . Table 1 Baseline characteristics of patients (%)and gene mutations; therefore, an in-depth analysis of the efficacy mechanism could not be conducted. The observation period was too short to draw a definitive conclusion and requires further research, because danazols response time is generally 3C6?months, and its benefits may have been underestimated . Ruxolitinib combined with immunomodulatory agents MF is regarded as a chronic inflammation-related disease [38, 39]. Immunomodulatory agents have an established role in the treatment of myelofibrosis and demonstrate pleiotropic activities, including anti-angiogenesis, anti-tumor, regulation of cellular immunity, inhibition of NF-B, apoptosis, and selective inhibition of pro-inflammatory cytokines . Commonly used immunomodulatory agents include thalidomide, lenalidomide, and pomalidomide. As second-generation immunomodulator drugs, lenalidomide and pomalidomide show stronger immunomodulatory effects and angiogenesis inhibition, and improved safety, compared with thalidomide . In recent years, thalidomide, lenalidomide, and pomalidomide have induced an adverse reaction rate of about 20C40% . Anemia and thrombocytopenia are the most common ruxolitinib treatment-related AEs; however, research has demonstrated that the efficacy of thalidomide or lenalidomide monotherapy are not ideal . In the COMFORT-I and COMFORT-II trials, the dose reduction and discontinued treatment because of anemia were 6% and 5%, respectively [12, 44]. Early trials had shown that thalidomide in low doses ( ?100?mg/day) could improve symptoms such as anemia, thrombocytopenia, and splenomegaly [45, 46]. In a retrospective cohort study, ruxolitinib combined with low dose thalidomide, stanozolol, and prednisone significantly modulated initial hematological toxicity and improved anemia ..
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