CML: Der Weg zur optimalen Therapieselektion

2020 ◽  
Vol 7 (4) ◽  
pp. 206-207
Author(s):  
Susanne Saußele

Prognostic scores support clinicians in selecting risk-adjusted treatments and in comparatively assessing different results. For patients with chronic-phase chronic myeloid leukemia (CML), four baseline prognostic scores are commonly used. Our aim was to compare the prognostic performance of the scores and to arrive at an evidence-based score recommendation. In 2949 patients not involved in any score development, higher hazard ratios and concordance indices in any comparison demonstrated the best discrimination of long-term survival with the ELTS score. In a second step, of 5154 patients analyzed to investigate risk group classification differences, 23% (n = 1197) were allocated to high-risk by the Sokal score. Of the 1197 Sokal high-risk patients, 56% were non-high-risk according to the ELTS score and had a significantly more favorable long-term survival prognosis than the 526 high-risk patients according to both scores. The Sokal score identified too many patients as high-risk and relatively few (40%) as low-risk (versus 60% with the ELTS score). Inappropriate risk classification jeopardizes optimal treatment selection. The ELTS score outperformed the Sokal score, the Euro, and the EUTOS score regarding risk group discrimination. The recent recommendation of the European LeukemiaNet for preferred use of the ELTS score was supported with significant statistical evidence.

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 595-595 ◽  
Author(s):  
Markus Pfirrmann ◽  
Joerg Hasford ◽  
Susanne Saussele ◽  
Anna Turkina ◽  
Witold Prejzner ◽  
...  

Abstract Introduction: The in-study and out-study sections of the European Treatment and Outcome Study (EUTOS) registry comprise data on imatinib-treated adult patients with chronic myeloid leukemia (CML) who were prospectively enrolled in clinical studies or registries between 2002 and 2006. All patients diagnosed with chronic-phase Philadelphia chromosome-positive CML were eligible for analysis. The new EUTOS long-term survival (ELTS) score was developed in 2,205 in-study patients (Blood 2014; 124(21):153). Its purpose is the discrimination of three risk groups with clinically significantly different probabilities of dying from CML. The score was validated in 1,120 out-study patients. Aims: Up to now, many investigators still apply the Sokal score for the prognostic discrimination of CML-patients treated with tyrosine kinase inhibitors (TKIs). The Sokal score allocated more than 20% of chronic-phase patients to the high-risk group while it was 12% with the new ELTS score. Long-term outcome with tyrosine kinase inhibitors (TKIs) suggests that the allocation of more than 20% chronic-phase CML patients into a high-risk group is too pessimistic. The focus of this analysis was the comparison of risk group allocations and prognosis between the two scores. Methods: Survival time was calculated from the date of start of treatment to death or to the latest follow-up date. Survival was censored at the time of allogeneic stem cell transplantation in first chronic phase. Cumulative incidence probabilities (CIPs) of dying of CML were compared with the Gray test and overall survival probabilities with the log-rank test. As "death due to CML", only death after confirmed disease progression was regarded. Progression was defined in accordance with the recommendations of the ELN (Baccarani et al, Blood 2013). Level of significance was 0.05. Results: Both registries combined, the 3,325 patients had a median observation time of 6.1 years. Six-year overall survival probability was 91% (95% confidence interval (CI): 89-92%). Death was due to CML in 142 of 309 deceased patients (46%).The 6-year CIP of dying of CML was 4% (CI: 4-5%). From low to high risk groups, the Sokal score resulted in 6-year CIPs of 3% (n=1358 (41%), CI: 2-4%), 4% (n=1209 (36%), CI: 3-5%), and 8% (n=758 (23%), CI: 6-11%) and the ELTS score in 6-year CIPs of 2% (n=2030 (61%), CI: 2-3%), 6% (n=898 (27%), CI: 4-7%), and 13% (n=397 (12%), CI: 10-17%). Of the 758 patients allocated to high risk by the Sokal score, the ELTS score classified 165 (22%) as low risk and 265 (35%) as intermediate risk. Compared to the 328 high-risk patients (43%) according to both scores (6-year CIP of dying: 13%, CI: 9-17%), the CIPs of dying were significantly lower for the 165 low-risk patients (p=0.0062, 6-year CIP: 5%, CI: 2-9%) and for the 265 intermediate-risk patients (p=0.0050, 6-year CIP: 5%, CI: 3-9%). These 430 Sokal high but ELTS non-high-risk patients (6-year OS: 89%. CI: 86-92%) showed significantly higher OS probabilities than the 328 Sokal and ELTS high-risk patients (p=0.030, 6-year OS: 81%. CI: 76-85%). Of the 2030 patients identified as low risk by the ELTS score, the Sokal score allocated 603 (30%) to the intermediate- and 165 (8%) to the high-risk group. Without significant CIP differences to the latter group, at 6 years, the CIP of dying was 2% (CI: 1-3%) in the 1262 low-risk and also 2% in the 603 intermediate-risk patients (CI: 1-3%). The OS probabilities of the 768 non-low-risk patients according to the Sokal score (6-year OS: 93%. CI: 91-95%) were not significantly different from the 1262 classified as low-risk by both scores (6-year OS: 95%. CI: 93-96%). Conclusions: To be able to perform comparisons between the various prognostic groups suggested by the Sokal and the EUTOS survival score with a reasonable power, data of in- and out-study samples were combined. The Sokal score allocated an absolute difference of 12% (n=430) more patients to the high-risk groups than the EUTOS survival score. As these patients had significantly and clinically relevantly lower CIPs and higher OS probabilities, the allocation of the Sokal score was not appropriate. Contrarily, the long-term outcome of 768 patients assessed as low-risk by the ELTS and non-low-risk by the Sokal score was not different from the outcome of 1262 assesses as low-risk patients by both scores. For prognosis of long-term survival outcome, the use of the EUTOS survival score is recommended. Disclosures Pfirrmann: BMS: Consultancy, Honoraria; Novartis Pharma: Consultancy, Honoraria. Hasford:Novartis: Research Funding. Saussele:Novartis Pharma: Honoraria, Other: Travel grant, Research Funding; BMS: Honoraria, Other: Travel grant, Research Funding; ARIAD: Honoraria; Pfizer: Honoraria, Other: Travel grant. Turkina:Bristol Myers Squibb: Consultancy; Pfizer: Consultancy; Novartis Pharma: Consultancy. Prejzner:Novartis Pharma: Honoraria; BMS: Honoraria. Steegmann:Novartis Pharma: Consultancy, Honoraria, Research Funding; Bristol Myers Squibb: Consultancy, Honoraria, Research Funding; Pfizer: Consultancy, Honoraria, Research Funding. Simonsson:Novartis Pharma: Research Funding. Zaritskey:University of Heidelberg: Research Funding; Novartis: Consultancy. Zackova:Novartis Pharma: Consultancy; Bristol Myers Squibb: Consultancy. Janssen:Novartis: Research Funding; Pfizer: Consultancy; Bristol Myers Squibb: Consultancy; ARIAD: Consultancy. Cervantes:Novartis: Consultancy, Speakers Bureau; Sanofi-Aventis: Consultancy; CTI-Baxter: Consultancy, Speakers Bureau. Hehlmann:Novartis Pharma: Research Funding; BMS: Consultancy. Baccarani:Novartis: Consultancy, Honoraria, Speakers Bureau; BMS: Consultancy, Honoraria, Speakers Bureau; Pfizer: Consultancy, Honoraria, Speakers Bureau; Ariad: Consultancy, Speakers Bureau.


2018 ◽  
Vol 28 (2) ◽  
pp. 235-239 ◽  
Author(s):  
Alix Marhic ◽  
Bassel Dakhil ◽  
Gaëtan Plantefeve ◽  
Rym Zaimi ◽  
Viorel Oltean ◽  
...  

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 765-765 ◽  
Author(s):  
Uwe Platzbecker ◽  
Ulrich Schuler ◽  
Martin Bornhäuser ◽  
Michael Kramer ◽  
Markus Schaich ◽  
...  

Abstract Abstract 765 Background: The combination of ATRA and idarubicin (AIDA) for induction therapy of acute promyelocytic leukemia (APL) yields complete remission (CR) rates of > 90%. If this is followed by intensive consolidation treatment, about 85% of patients are disease free and alive after 6 years. In fact, three cycles of consolidation treatment are considered the therapeutic standard; however, it is unclear how much treatment intensity is necessary for long-term survival. In order to address this question, we analyzed the clinical course of patients enrolled into the APL study of the German Study Alliance Leukemia (SAL), which contained only two courses of consolidation. Patients and Methods: All patients ≥ 18 years diagnosed with cytogenetically confirmed APL were eligible for inclusion in the risk-adapted SAL-AIDA-2000 trial. Enrolled patients received standard induction treatment with ATRA (45 mg/m2/d until CR) and idarubicin (12 mg/m2 for 4 doses every other day). After CR, non-high-risk patients (WBC ≤ 10,000/μL) received daunorubicin (45/60 mg/m2 days 1–3, dose depending on age) as first consolidation and mitoxantrone (10 mg/m2 days 2–4) as second consolidation. High-risk patients received additional cytarabine in both consolidation cycles (100/200 mg/m2 continuous infusion over 7 days in 1st consolidation and 1000/3000 mg/m2 twice daily on 4 days in 2nd consolidation, dose depending on age). After 2 cycles of consolidation, all patients were scheduled for 24 months of maintenance with 6-mercaptopurin (90 mg/m2 daily), methotrexate (15 mg/m2 weekly), and ATRA (45 mg/m2 for 15 days every 3 months). The following outcomes were analyzed: CR rate, induction deaths, disease-free survival (DFS), and overall survival (OS). Results: Between January 1999 and October 2010, 141 patients were enrolled in the trial. The median age at diagnosis was 51 years (range, 19–82), and 41 (29%) patients had a WBC >10,000/μL (high risk). The CR rate was 92% in the entire cohort; 95% in patients ≤ 60 and 86% in patients > 60 years (p=0.082). No significant differences in CR rates were seen between high-risk and non-high-risk patients (88% vs 94%, p=0.213). Three patients died during induction treatment (2%). After a median follow up of 55 months, the median DFS and OS were not reached. The estimated 6-year DFS was 80% (95%–CI 72%–88%) in all patients; 84% in patients ≤ 60 and 72% in patients > 60 years (p=0.140). The estimated 6-year OS was 77% in all patients; 84% (95%–CI 76%–92%) in the younger and 62% (95%–CI 47%–78%) in the elderly group (p=0.004). No significant survival differences between the high-risk and the non-high-risk patients were observed, neither for DFS (6-year DFS 78% (95%–CI 64–93%) vs 81% (95%–CI 72%–91%), p=0.625) nor for OS (6-year OS 71% (95%–CI 57%–86%) vs 79% (95%–CI 70–89), p=0.207). Conclusions: Our results confirm the efficacy of a risk-adapted approach both in high-risk and non-high-risk APL patients. The similarity for DFS and OS times between these two groups demonstrate the efficacy of cytarabine added to anthracyclines during consolidation in high-risk patients. Both CR rates and survival outcomes are comparable to the results obtained in the AIDA0493 and AIDA2000 trials by the GIMEMA group, which used three cycles of higher-dosed consolidation. In light of the data, modification in number and intensity of consolidation cycles may result in a less toxic but equally effective option for the treatment of APL and should be considered for further evaluation in a randomized clinical trial. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 5150-5150 ◽  
Author(s):  
Mikhail Fominykh ◽  
Vasily Shuvaev ◽  
Irina Martynkevich ◽  
Grigory Tsaur ◽  
Natalya Bederak ◽  
...  

Abstract Background. About 70% of chronic myeloid leukemia (CML) patients achieve early molecular response (BCR-ABLIS2 10% at 3-months) that lead to 5-years overall survival close to 95%. However, CML patients remain heterogeneous group and several studies in recent years were aimed to personalize treatment based on individual patients' characteristics. Our group previously put forward a hypothesis about the prognostic value of individual BCR-ABL declinerate in the first three months of CML therapy1,2. The ratio BCR-ABL at 3 months to baseline had chosen as 0.1 as best cut-off value to predict MMR at 12 months. The aims of this study were to validate our prognostic method in larger group of patients and compare these results according to CML prognostic scores. Patients and methods. Fifty-five patients (median age, 52 years; range 19-84; 24 male and 31 female) with chronic phase CML were included in the study. Patients' distribution for Sokal risk groups were as follows: low-30 / intermediate-15 / high-10. Six patients had EUTOS high-risk. Forty-two patients started treatment with Imatinib 400 mg/day, 12 patients started with Nilotinib 600 mg/day and 1 patient started with Dasatinib 100 mg/day. Median BCR-ABL transcript levels was 41.38% at diagnosis, range 3.39-3185.36% (IS). The ratio of BCR-ABL levels at 3 months to baseline for each patient was calculated. In addition, we calculated ratio of BCR-ABL levels at 3 months to BCR-ABL levels at 1 month for 13 patients. Comparison was made of the predictive sensitivity to achieve early molecular response at 3 months (10% by IS) and according to prognostic CML scores (Sokal and EUTOS). We also assessed positive likelihood ratio (LR) value for the probability of achieving MMR between patients' stratification methods. Statistical analysis was conducted with Fisher exact test and sensitivity-specificity analyses. Results. Twenty-six out of 34 patients (76.5%) with ratio of BCR-ABL levels at 3 months to baseline below than 0.1 achieved MMR at 12 months, while only 9 of 21 patients (42.9%) with ratio more than 0.1 had optimal response (LR = 1.86 (1.05 - 3.29); p=0.003). Ratio of BCR-ABL levels at 3 months to 1 month showed much better results with the same (0.1) cut-off value - 5 out of 6 patients (83.3%) with ratio BCR-ABL at 3 months to 1 month below than 0.1, while only 1 patient (14.3%) with ratio more than 0.1 achieved optimal response (LR = 5.83 (0.92 - 37.08); p=0.05), respectively. Application of early molecular response at 3 months (10% by IS) yielded worse discrimination results: 34 of 47 (72.3%) patients with BCR-ABL level ²10% at 3 months, whereas 2 of 8 (25%) patients with BCR-ABL >10% had MMR at 1 year (LR = 1.38 (1.01 - 1.89); p=0.78), respectively. CML prognostic scores results had the following sensitivity-specificity results: for Sokal - low-risk 23 of 30 (76.7%), intermediate-risk 9 of 15 (60%) and 3 of 10 (30%) high-risk patients achieved MMR at 1 year (LR (low+intermediate)/high = 1.41 (1.00 - 1.97); p=0.03); for EUTOS-score - low-risk 34 of 49 (69.4%) and only 1 of 6 (16.7%) high-risk patients had achieved MMR at 12 months (LR = 1.30 (1.00 - 1.68); p=0.02). Furthermore, application of our ratio cut-off value among patients with BCR-ABL level ²10% at 3 months allowed us to revealed additional 6 high-risk patients have not reached MMR at 1 year of therapy (Table 1). Conclusion. Our study showed that individual rates of BCR-ABL decline from baseline to 3 months and to 1 month had better LR than CML prognostic scores (Sokal, EUTOS) or early molecular response achievement (BCR-ABL levels ²10% at 3 months) and might be useful as an optimized predictors of outcome for CML patients (MMR at 1 year of treatment). 1 Fominykh M., ShuvaevV., Martynkevich I. et al. ELN Frontiers Meeting ÇWhere science meets clinical practiceÈ 16-19 October, 2014, Berlin, Germany. Abstract book: 11. 2 Shuvaev V., Fominykh M., Martynkevich I. et al. Blood (56th ASH Annual Meeting Abstracts), 2014; 124 (21): 5529. Figure 1. The patient numbers of achieving MMR at 12 months of therapy in various stratification groups with sensitivity-specificity characteristics Figure 1. The patient numbers of achieving MMR at 12 months of therapy in various stratification groups with sensitivity-specificity characteristics Disclosures Chelysheva: Novartis Pharma: Consultancy, Honoraria; Bristol Myers Squibb: Honoraria. Turkina:Bristol Myers Squibb: Consultancy; Pfizer: Consultancy; Novartis Pharma: Consultancy.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ju-Li Lin ◽  
Jian-Xian Lin ◽  
Ping Li ◽  
Jian-Wei Xie ◽  
Jia-bin Wang ◽  
...  

Background. The aim of this retrospective study was to compare the long-term survival of patients receiving conservative with surgical treatment to analyze the prognostic factors and the impact of surgery on oncological outcomes of patients with primary gastric diffuse large B-cell lymphoma. Methods. A total of 2647 patients diagnosed with primary gastric diffuse large B-cell lymphoma from 1998 to 2014 were extracted from SEER database. Propensity matching was performed to compare the clinicopathological characteristics of the two groups. Based on the recursive partitioning analysis, the patients were divided into three risk subgroups: low risk, intermediate risk, and high risk. Results. After propensity score matching, patient characteristics did not differ significantly between the two groups. The 5-year cancer-specific survival rates of the surgical group and the conservative treatment group were, respectively, 60% and 59.2% (P=0.952) before propensity matching and 64.2% and 58.6% (P=0.046) after propensity matching. According to the multivariate analysis, age, tumor stage, and chemotherapy and surgery were independent risk factors for long-term survival. The 5-year cancer-specific survival rates differed significantly between the low-risk, intermediate-risk, and high-risk patients (76.2% vs. 57.4% vs. 25.5%, respectively, P<0.001). The 5-year cancer-specific survival rate of the surgical group was significantly higher than that of the conservative treatment group in the low-risk patients. However, it did not differ significantly in the intermediate-risk and high-risk patients (P>0.05). Conclusions. A prognostic model was constructed based on the independent risk factors of age, tumor stage, and chemotherapy. The prognostic model indicated that low-risk patients (age<75 years, stage I/II, with/without chemotherapy) undergoing surgical treatment may benefit from long-term survival, while intermediate- and high-risk patients (age≥75 years, stage I/II, with/without chemotherapy or III/IV patients, with/without chemotherapy) gain no significant benefit from surgery.


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