Yeh et al 1 Palonosetron and Dexamethasone for The Prevention of Nausea and Vomiting In 2 Patients Receiving Allogeneic Hematopoietic Stem Cell Transplantation 1 3 4 Su-Peng Yeha,b,c, Woei-Chung Loa,d, Ching-Yun Hsieha, Li-Yuan Baia,c, Ching-Chan Lina, 5 Po-Han Lina, Chen-Yuan Lina, Yu-Min Liaoa, Chang-Fang Chiua,c 6 7 a 8 9 Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, 2 Yuh Der Road; Taichung 404; Taiwan b Stem 10 Cell Research Lab., Department of Medical Research, China Medical University Hospital, 2 Yuh Der Road; Taichung 404; Taiwan 11 c China Medical University, 2 Yuh Der Road; Taichung 404; Taiwan 12 d Regency Specialist Hospital, No.1 Jalan Suria, Bandar Seri Alam, 81750 Masai, Johor, 13 Malaysia 14 15 Corresponding author: Su-Peng Yeh, MD. 16 Division of Hematology and Oncology, Department of Medicine, 17 China Medical University Hospital; 2 Yuh Der Road; Taichung 404; Taiwan 18 Tel. No.: 886-4-22052121 ext. 1513; Fax No.: 886-4-22337675 19 E-mail: supengyeh@gmail.com Yeh et al 2 20 Abstract 21 Purpose: The primary aim of this study was to evaluate the efficacy of Palonosetron 22 combined with Dexamethasone in the prevention of vomiting, and especially nausea, in 23 patients receiving allogeneic stem cell transplantation. 24 Methods: Palonosetron 0.25mg was given to 27 patients receiving allogeneic 25 transplantation on the first day of conditioning, and then every other day during the entire 26 conditioning period. Dexamethasone was given daily also during conditioning. Vomiting 27 and nausea were recorded daily according to CTCAE version 4.0 from the start of 28 conditioning to Day 7 after transplantation. In addition, MASCC Anti-emetic Tool (MAT) 29 was also used in parallel to evaluate the intensity of nausea. 30 Results: The treatment was well tolerated. 25.9% and 40.7% of the patients had grade 2/3 31 vomiting and nausea respectively during conditioning. The incidences of grade 2/3 32 vomiting and nausea were even higher in the first week after transplantation (40.7% and 33 51.8% respectively). The score of MAT correlated well with the grade of CTCAE. 34 However, the difference in the mean intensity of nausea between period of conditioning 35 and the first week after HSCT was significant only by using MAT (0.96±1.829 vs 36 3.81±3.386, p=0.001) but not CTCAE (1.26±0.903 vs 1.63±0.967, p=0.152). 37 Conclusion: Palonosetron combined with dexamethasone is effective in preventing 38 vomiting during conditioning. However, more effort should be made to alleviate nausea Yeh et al 3 39 during conditioning and both nausea and vomiting in the first week after transplantation. 40 Furthermore, MAT has a higher discriminant power than CTCAE in assessing the intensity 41 of nausea in patients receiving allogeneic transplantation. 42 43 44 Key Words: Chemotherapy induced nausea and vomiting (CINV), Palonosetron, 45 allogeneic transplantation 46 47 48 49 50 51 52 53 54 55 56 57 Yeh et al 58 4 Introduction 59 Nausea and vomiting, although not the life threatening conditions by themselves, are 60 the most severe side effects of chemotherapy perceived by patient [1-3]. The launch of 61 5-hydroxytryptamine receptor antagonists (5-HT3 RAs) is one of the major breakthroughs 62 in combating chemotherapy-induced nausea and vomiting (CINV). However, the clinical 63 benefit of using 5-HT3 RA was seen predominantly in the control of acute CINV. The 64 control of delayed CINV remained unsatisfied clinically, especially in patients receiving 65 multiple-day chemotherapy [4-7] or high dose chemotherapy [8-14]. Palonosetron is a 66 second generation 5-HT3 RA with a stronger binding affinity and a much longer 67 plasma-elimination half-life comparing to the first-generation 5-HT3 RAs [15-17]. The 68 improved efficacy of Palonosetron in preventing acute CINV and chronic CINV of 69 patients receiving moderately (MEC) or highly emetogenic (HEC) chemotherapy had been 70 established in prior studies [18-21]. More recently, the efficacy of Palonosetron in 71 preventing CINV of patients receiving multiple-day chemotherapy for hematological 72 malignancies [22, 23], as well as of patients receiving high dose chemotherapy with 73 autologous hematopoietic stem cell transplantation (HSCT) were encouraging [24, 25]. 74 Allogeneic HSCT is much more complex than simply multiple-day chemotherapy 75 with or without autologous HSCT. Many drugs, such as prophylactic antibiotic, 76 prophylactic antifungal agent, and immunosuppressives are given to patients Yeh et al 5 77 simultaneously with the conditioning chemoradiotherapy and might potentially contribute 78 to nausea and vomiting. The efficacy of Palonosetron in the prevention of conditioning 79 chemoradiotherapy-related nausea and vomiting remains unknown. Nausea is especially 80 of our greater concern because it is less effectively prevented by 5-HT3 RA [26-28], is a 81 subjective and unobservable phenomenon [29], and has a greater impact on quality of life 82 than vomiting [30]. Furthermore, it is unknown whether the use of higher affinity and 83 longer acting 5-HT3 RA will have any positive or negative impact on the 84 transplant-related outcomes that were specifically concerned in the allogeneic 85 transplantation, such as transplant-related mortality (TRM) and graft-versus-host disease 86 (GVHD). We therefore conduct this prospective study to evaluate the efficacy of 87 Palonosetron in the prevention of vomiting and nausea during the whole period of 88 conditioning and the first week after allogeneic HSCT. For more carefully assessing the 89 severity of nausea, both CTCAE grading system and Multinational Association of 90 Supportive Care in Cancer antiemesis tool (MAT) scoring system were used 91 simultaneously and it is our great interest to know how difference are CTCAE and MAT 92 compared to each other. In addition, we also carefully look at the development and 93 outcome of transplant-related morbidities and mortalities in these patients. 94 95 Yeh et al 96 Design and Methods 97 Patients and Treatments 6 98 Twenty-seven adults receiving allogeneic HSCT between May 2011 and Dec. 2012 99 at China Medical University Hospital were enrolled in this study that had been approved 100 by local institutional review board (IRB). They are 20 acute leukemia, 2 chronic myeloid 101 leukemia, 1 myelodysplastic syndrome, 3 severe aplastic anemia, and 1 non-Hodgkin’s 102 lymphoma. The median age of them is 39 (ranged from 21 to 60). All the 27 patients 103 received peripheral blood stem cell transplantation from HLA-matched siblings (12), 104 HLA-matched unrelated donors (9), and HLA-mismatched donors (6). GVHD prophylaxis 105 consisted of standard cyclosporine-A started from Day -1 and short-course methotrexate 106 given on Day 1, 3, 6, and 11. Anti-thymocyte globulin (ATG, Gemzyme) was also given to 107 patients receiving stem cell from unrelated, or HLA mismatched donors. 17 patients 108 received myeloablative conditioning (MAC, Fludarabine and myeloablative Busulfan 109 (FluBu4) in 16 and total body irradiation (TBI) 12Gy plus Cyclophosphamide in 1, while 110 10 patients received reduced-intensity condition (RIC, Fludarabine and non-myeloablative 111 Busulfan (FluBu2) in 5, Fludarabine and Cyclophosphamide (FluCy) in 2, FluBu2Cy in 3. 112 The mean age of patients receiving RIC is significantly higher than patients receiving 113 MAC (52.3 years vs 34.1 years, p < 0.001, Mann Whitney test). The characteristics of 114 these patients are summarized in table 1. Yeh et al 7 115 All the patients received Palonosetron 0.25mg i.v. infusion 30 minutes before the 116 start of conditioning chemoradiotherapy. Palonosetron 0.25mg was given subsequently 117 every other day to cover the whole period of conditioning. Dexamethasone 10-15mg i.v. 118 infusion was also given daily during conditioning. All the other anti-emetic drugs were 119 prohibited at first. However, metaclopropamide and/or additional dexamethasone were 120 allowed as rescue treatment for patients who had breakthrough vomiting or nausea. 121 Efficacy and Safety Assessment 122 The efficacy of Palonosetron combined with dexamethasone in the prevention of 123 conditioning chemoradiotherapy-related vomiting and nausea was evaluated on a daily 124 basis from the start of conditioning to Day 7 after HSCT. The severity of vomiting and 125 nausea were determined based on the grading system of CTCAE version 4.0. In addition 126 to this, we also used a 100-mm visual analog scale (VAS) from Chinese translation of 127 MAT to evaluate the intensity of nausea, with 0 mm being labeled as no nausea and 100 128 mm being nausea as bad as it can be. 129 Adverse effects potentially associated with Palonosetron use, including constipation, 130 diarrhea, headache, insomnia, and flatulence were recorded on a daily basis from the start 131 of conditioning to Day 7 after HSCT. The severity of these symptoms was determined 132 based on CTCAE version 4.0. In addition, the transplant-related outcome, including the 133 timing of engraftment, the development of veno-occlusive disease, GVHD, relapse, and Yeh et al 134 survival status, as well as cause of death were also collected in each patient. 135 Statistics 8 136 The differences in the grade of vomiting and nausea assessed by CTCAE version 4.0 137 and the score of nausea assessed by MAT between period of conditioning and the first 138 week after HSCT were evaluated by Mann-Whitney U-test. The correlation between the 139 score of nausea assessed by MAT and grade of nausea assessed by CTCAE was 140 determined by Spearman rank correlation test. Univariate analyses were performed to 141 identify differences of following variables between patients with or without grade 2/3 142 vomiting and nausea: age, gender (male / female), status at HSCT (complete remission / 143 not in remission), lines of prior treatments (1 line / 2 or more lines), conditioning regimen 144 (MAC / RIC), and the use of ATG (Yes / No). Odds ratio and 95% confidence intervals 145 were calculated for each variable. To examine the independent association between grade 146 2/3 vomiting and nausea and these variables, binary logistic regression was used for 147 multivariate analysis. Two-tailed probability (p-value) less than 0.05 was considered 148 significant and all of the statistical analysis was performed using SPSS software (SPSS 149 Inc., Chicago, IL, USA). 150 151 152 Yeh et al 153 Result 154 Efficacy on the prevention of vomiting and nausea 9 155 During the period of conditioning to Day -1, 37% of the patients did not have 156 vomiting (complete protection) and only 25.9% of the patients had grade 2/3 vomiting. 157 Nausea is less effectively prevented. Only 22.2% of the patients did not have nausea and 158 40.7% of the patients had grade 2/3 nausea. During the first week after HSCT (from Day 0 159 to Day 7), 37% of the patients did not have vomiting. However, as much as 41.7% of the 160 patients had grade 2/3 vomiting. Nausea is also more prominent in the first week after 161 HSCT comparing to that during conditioning. Only 11.1% of the patients did not have 162 nausea and 51.9% of the patients had grade 2/3 nausea (Figure 1). When we look at 163 vomiting and nausea between Day 0 and Day 7 specifically, the incidence of grade 2/3 164 vomiting decreased gradually to less than 20% after Day 3, by contrary, the incidence of 165 grade 2/3 nausea remained higher than 30% through Day 0 to Day 6 (Figure 2). 166 Comparing the severity of vomiting between period of conditioning and the first week 167 after HSCT, we found there was no significant difference in the mean CTCAE grade of 168 vomiting (1.259±0.447 vs 1.407±0.501 respectively, p=0.257). In assessing the severity of 169 nausea, the grade of CTCAE correlates well with the score of MAT (ρ=0.609, p < 0.001, 170 Spearman rank correlation test, Figure 3A). Nevertheless, the significant higher intensity 171 of nausea in the first week after HSCT comparing to that in the period of conditioning was Yeh et al 10 172 demonstrated only by using MAT scoring system (3.81±3.386 vs 0.96±1.829, p=0.001) 173 but not CTCAE grading system (1.63±0.967 vs 1.26±0.903, p=0.177; Figure 3B). 174 Risk factors for grade 2/3 vomiting and nausea 175 Univariate analyses of factors (age, gender, status at HSCT, prior treatments, 176 conditioning regimen, and the use of ATG) associating with grade 2/3 vomiting during 177 conditioning chemoradiotherapy is shown in table 2. Of these, age is the only factor 178 associated with grade 2/3 vomiting (odds ratio 0.656, 95% confidence interval 179 0.441-0.978, p=0.038). In multivariate analysis, age remains an independent factor 180 associated with grade 2/3 vomiting during period of conditioning (odds ratio 0.653, 95% 181 confidence interval 0.426-1.000, p=0.050). On the other hand, MAC conditioning protocol 182 is the only independent factor associated with grade 2/3 vomiting in the first week after 183 HSCT (p=0.043). Independent factor associated with grade 2/3 nausea could not be 184 identified in this study, although age associated with a trend of grade 2/3 nausea during 185 period of conditioning (odds ratio 0.757, 95% confidence interval 0.567-1.011, p=0.059) 186 Safety and Transplant-related Outcome 187 The treatment of Palonosetron was well tolerated and based on our experience in 188 allogeneic HSCT, we did not observe any significant difference in the side effect or other 189 safety issues when comparing to the treatment using other 5HT3 RA such as Granisetron 190 or Tropisetron. The most common adverse effects potentially associated with Palonosetron Yeh et al 11 191 treatment was insomnia (75.1%). The incidence of other potential adverse effects, 192 including constipation, diarrhea, headache, and flatulence, were between 14.8% and 37%. 193 In addition to insomnia and constipation, there was no grade 2 or higher adverse effects 194 (Figure 4). 195 The median days to neutrophil and platelet engraftment are 14.889±4.552 days and 196 20.642±5.582 days respectively. No patient had veno-occlusive disease (sinusoidal 197 obstruction syndrome). The incidences of any and grade 3/4 acute GVHD are 50% and 198 19.2% respectively. The incidences of any and extensive chronic GVHD are 57.7% and 199 23.1% respectively. The TRM (Day 100 mortality rate) of this cohort is 7.4%. With 200 median follow up time of 16.5 months, 19 patients (70.4%) remain alive and 5 had relapse 201 (22.7% of patients with leukemia). 8 patients died, including 3 patients died of relapse, 2 202 patients died of complication of GVHD, and the other 3 patients died of infection, 203 intracranial hemorrhage, and post-transplant lymphoproliferative disorder respectively. 204 205 206 207 208 209 Yeh et al 210 12 Discussion 211 CINV remains a significant medical problem in patients receiving stem cell 212 transplantation even in the era of 5-HT3 RA [31]. However, our study showed that with 213 the use of second generation 5-HT3 RA Palonosetron in combination with Dexamethasone, 214 severe (grade 2 or 3) vomiting during period of conditioning chemoradiotherapy can 215 largely be prevented and 74.1% of the patients had either no vomiting or grade 1 vomiting. 216 Consistent with many prior studies, younger patients are at a higher risk of grade 2/3 217 vomiting during conditioning. Using 33 years old as a cutting point based on ROC curve, 218 patients younger than 33 years had 75% of grade 2/3 vomiting comparing to 5.3% of 219 patients older than 33 years. We also compare the efficacy of Palonosetron retrospectively 220 to 24 historical control patients who were matched for age, gender, conditioning regimen, 221 donor type, disease type, and disease status before HSCT and received first generation 222 5-HT3 RA (21 Tropisetron, 3 Granisetron) plus dexamethasone during conditioning 223 treatment (Supplement table 1). The use of first generation 5-HT3 RA is associated with 224 significant higher incidence of any vomiting (grade 1-3) both during conditioning (91.7% 225 vs 63.0%, p=0.017, Mann-Whitney U-test) and the first week after transplantation (91.7% 226 vs 66.7%, p=0.032; Mann-Whitney U-test, supplement figure 1). Nevertheless, 227 prospective randomized study is needed to confirm the superiority of Palonosetron in the 228 prevention of vomiting in allogeneic HSCT. Yeh et al 13 229 Nausea was less effectively prevented comparing to vomiting. As much as 40.7% of 230 the patients had grade 2 or 3 nausea during period of conditioning. An even more serious 231 problem, as was shown in Figure 1, 2, and 3, is the higher incidence of grade 2 or 3 232 vomiting and nausea in the first week after transplantation (between Day 0 to Day 7), a 233 finding that has never been addressed in the literature. The reason why patients had more 234 vomiting and nausea in the first week after HSCT comparing to those during period of 235 conditioning cannot be answered in this study. The use of Cyclosporine-A (started from 236 Day -1) and short course Methotrexate (given on Day 1, 3 and 6), as well as other 237 concomitant medication may potentially worsen the condition of vomiting and nausea in 238 these patients. However, delayed nausea and vomiting from chemotherapy given in the 239 last few days of conditioning and the lack of coverage of antiemetics after Day 0 might 240 probably be the major contributor. A study to examine whether additional Palonosetron 241 given after alloHSCT can ameliorate nausea and vomiting will be started shortly in our 242 institute. Also, though the grade of nausea assessed by CTCAE correlates well with the 243 score of MAT, the difference in the intensity of nausea between period of conditioning and 244 the first week after HSCT was significant only by using MAT scoring system (0.96±1.829 245 vs 3.81±3.386, p=0.001) but not CTCAE grading system (1.26±0.903 vs 1.63±0.967, 246 p=0.152), suggesting MAT scoring system has a higher discriminant power than CTCAE 247 grading system in patients received alloHSCT and should be the preferred tool in Yeh et al 248 14 assessing the severity of nausea in future studies. 249 The use of Palonosetron in the setting of allogeneic transplantation is well tolerated 250 and we do not observe any unexpected adverse effect. Although 75.1% of the patients had 251 insomnia, it is easily manageable; besides, the high incidence of insomnia might also be 252 due to the concomitant daily use of Dexamethasone. The potential impact of Palonosetron 253 on GVHD has never been reported so far. It had been shown that 5-HT plays an important 254 role in gut inflammation through activation of dendritic cell and subsequent activation of 255 T cells [32] and 5HT-3 RA Tropisetron and Granisetron were shown to reduce 256 inflammatory response and lipid peroxidation in the gut [33, 34] and other rheumatic 257 diseases [35-38]. Palonosetron binds to the 5HT-3 receptor much more potent and exerts 258 the inhibitory effect much longer than Tropisetron and Granisetron; however, we did not 259 observe a lower incidence of GVHD or higher relapse rate by using Palonosetron. More 260 studies are needed to explore the anti-inflammation and immune modulation effect of 261 Palonosetron in the allogeneic transplantation. 262 There are some limitations in the interpretation the result of this study. Firstly, almost 263 all the patient received Fludarabine-based conditioning chemotherapy and only 1 patient 264 received traditional TBI (12Gy) plus Cyclophosphamide. The efficacy of Palonosetron in 265 the prevention of nausea and vomiting after TBI-based conditioning may need further 266 study. Secondly, while Palonosetron has an extended elimination half-life of around 40 Yeh et al 15 267 hours and Palonosetron 0.25mg every 3 days was used in prior studies [23, 24], there were 268 studies showing that Palonosetron 0.25mg daily for multiple days could be more effective 269 in patients receiving high dose Cytarabine [22] or high dose Melphalan [25]. The most 270 cost-effective dosing schedule of Palonosetron might be in between and so we used 271 0.25mg every other day in this study. Nevertheless, the best dosing schedule of 272 Palonosetron for multi-day conditioning chemotherapy remains to be investigated. Finally, 273 only Metaclopropamide or additional dose of Dexamethasone were allowed for salvage 274 treatment. Aprepitant was not allowed in this study because it is a moderate inhibitor of 275 CYP3A4 and may alter the metabolism of CYP3A4 substrate such as Cyclosporine [39, 276 40]. It is not known whether using Aprepitant during conditioning or using Palonosetron 277 as salvage treatment will further improve the control rate. 278 Conclusion 279 Our study demonstrates Palonosetron combined with Dexamethasone is an effective and 280 safe treatment for the prevention of vomiting caused by conditioning chemoradiotherapy. 281 The transplant-related outcomes that were specifically concerned in the allogeneic setting 282 such as TRM and GVHD were not negatively affected by Palonosetron. However, nausea 283 is less effectively controlled. Furthermore, both vomiting and nausea in the first week after 284 HSCT remain a significant medical problem and more effort should be made to address 285 and improve this unmet need in future study. Yeh et al 16 286 Acknowledgement: The authors would like to thank all the nursing staff of BMT unit 287 (5H ward) and Yu-Ting Ho (research coordinator of this study) for their great help in this 288 study. This study was supported in part by the research grant from Department of Health 289 of Taiwan (DOH102-TD-C-111-005) and China Medical University Hospital (DMR 290 98-008). 291 292 293 Authorship and Disclosures: 294 CC Lin, PH Lin, CY Lin, YM Liao contributed to clinical data collection, CF Chiu 295 supervised the process of this study and reviewed the manuscript. All the authors have no 296 relationships or conflict of interest to declare. 297 298 299 300 301 302 303 304 SP Yeh, WC Lo, CY Hsieh designed the study, LY Bai, Yeh et al 305 Reference 306 1. 17 Coates A, Abraham S, Kaye SB,Sowerbutts T, Frewin C, Fox RM, Tattersall MH 307 (1983) On the receiving end--patient perception of the side-effects of cancer 308 chemotherapy. Eur J Cancer Clin Oncol 19(2):203-208. 309 2. 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More patients had grade 2/3 457 vomiting and nausea in the first week after HSCT comparing to those during 458 period of conditioning. Also, nausea was less effectively prevented comparing 459 to vomiting. 460 Figure 2: Incidence of grade 2/3 vomiting and nausea in the first week after HSCT. 461 The incidence of grade 2/3 vomiting decreased gradually to less than 20% after 462 Day 3. However, the incidence of grade 2/3 nausea remained higher than 30% 463 through Day 0 to Day 6. 464 Figure 3: Severity of nausea assessed by CTCAE version 4.0 and MAT. Figure 3A 465 (Left figure): the grade of nausea assessed by CTCAE correlates well with the 466 score of nausea assessed by MAT. Figure 3B (Right figure): the difference in 467 the intensity of nausea between period of conditioning (early) and the first 468 week after HSCT (late) was significant only by using MAT scoring system but 469 not CTCAE grading system, suggesting MAT scoring system has a higher 470 discriminant power than CTCAE grading system 471 Figure 4: Incidence of potential adverse effects of Palonosetron. Insomnia is the most 472 common adverse effect during period of conditioning, the incidences of other Yeh et al 26 473 adverse effects were low and there was no grade 3/4 adverse effect observed in 474 this study. 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 Yeh et al 27 492 Supplementary Figure Legends 493 Incidence of any vomiting during conditioning and the first week after HSCT. The 494 use of first generation 5-HT3 RA is associated with significant higher 495 incidence of any vomiting (grade 1-3) both during conditioning (91.7% vs 496 63.0%, p=0.017) and the first week after transplantation (91.7% vs 66.7%, 497 p=0.032). 498