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This phase-3 randomized multicenter trial evaluated the efficacy of subcutaneous azacitidine (AZA) post-remission therapy vs. best supportive care (BSC) in elderly acute myeloid leukemia (AML) patients. The primary endpoint was the difference in disease-free survival (DFS) from complete remission (CR) to relapse/death. Patients with newly diagnosed AML aged ≥61 years received two courses of induction chemotherapy (“3+7” daunorubicin and cytarabine) followed by consolidation (cytarabine). At CR, 54 patients were randomized (1:1) to receive BSC (N = 27) or AZA (N = 27) at a dose of 50 mg/m2 for 7 days every 28 days and the dose increased after the 1st cycle to 75 mg/m2 for a further 5 cycles, followed by cycles every 56 days for 4.5 years. At 2 years, median DFS was 6.0 (95% CI: 0.2–11.7) months for patients receiving BSC vs. 10.8 months (95% CI: 1.9–19.6, p = 0.20) months for AZA. At 5 years, DFS was 6.0 (95% CI: 0.2–11.7) months in the BSC arm vs. 10.8 (95% CI: 1.9–19.6, p = 0.23) months in the AZA arm. Significant benefit was afforded by AZA on DFS at 2 and 5 years in patients aged >68 years (HR = 0.34, 95% CI: 0.13–0.90, p = 0.030 and HR = 0.37, 95% CI: 0.15–0.93, p = 0.034, respectively). No deaths occurred prior to leukemic relapse. Neutropenia was the most frequent adverse event. There were no differences in patient-reported outcome measures between study arms. In conclusion, AZA post-remission therapy was found to provide benefit in AML patients aged >68 years.

Background The aim was to investigate the relative validity of the preference-based measure EORTC QLU-C10D in comparison with the EQ-5D-3L in myelodysplastic syndromes (MDS) patients. Methods We used data from an international multicentre, observational cohort study of MDS patients. Baseline EORTC QLU-C10D and EQ-5D-3L scores were used and index scores calculated for Italy, Australia, and the UK. Criterion validity was established by Spearman and intraclass correlations (ICC) and Bland-Altman plots. Construct validity was established by the instruments’ ability to discriminate known groups, i.e. groups whose health status is expected to differ. Results We analyzed data from 619 MDS patients (61.1% male; median age 73.8 years). Correlations between theoretically corresponding domains were largely higher than between unrelated domains. ICCs and Bland-Altman plots indicated moderate to good criterion validity. Ceiling effects were lower for the QLU-C10D (4.7%) than for the EQ-5D-3L (22.6%). The EQ-5D-3L failed to discriminate known-groups in two and the QLU-C10D in one of the comparisons; the QLU-C10D's efficiency in doing so was higher in clinical known-groups. Results were comparable between the countries. Conclusions The QLU-C10D may be suitable to generate health utilities for economic research in MDS. Responsiveness and minimal important differences need yet to be established.

Elderly patients represent the most challenging and hard-to-treat patient population due to dismal characteristics of the disease, such as secondary-acute myeloid leukemia (AML), enrichment of unfavorable molecular genes (TP53) and comorbidities. We conducted a multicentric retrospective study to evaluate activity and safety in a real-life setting of hypomethylating drugs (HMAs) in patients older than 75 years with AML. Between September 2010 and December 2021, 220 patients were treated, 164 (74.5%) received AZAcitidine and 56 DECitabine; most patients (57.8%), received more than four cycles of HMAs. The best response obtained was CR in 51 patients (23.2%), PR in 23 (10.5%) and SD in 45 (20.5%); overall transfusion independence was obtained in 47 patients (34%), after a median of 3.5 months. The median OS (mOs) was 8 months (95% CI 5.9–10.2), with 1- and 2-years OS of 39.4% (95% CI 32.7–46) and 17.4% (95% CI 11.7–23.1), respectively; similar mOS was observed according to HMA treatment (AZA 8.3 vs. DEC 7.8 months, p = 0.810). A subset of 57 long survivors (44 in AZA group and 13 in DEC group) received at least 12 cycles of HMAs, their mOS was 24.3 months. In multivariate analysis, age (≥80), Charlson comorbidity index (≥3), creatinine clearance and the type of best response (≥PR) during treatment maintained independent significance in predicting survival. Infectious complications, most frequently pneumonia (35) and septic shock (12), were lethal in 49 patients (22.2%). Our data show that HMAs have similar efficacy compared to pivotal trials and are well tolerated in a setting of very elderly patients with several co-comorbidities.

Background: There is paucity of data on the potential value of early palliative home care for patients with hematologic malignancies. Objective: To compare costs, use of resources, and clinical out...

Systemic anaplastic lymphoma kinase-negative (ALK-) anaplastic large cell lymphoma (ALCL) comprises a genomically heterogeneous disease that is considered a distinct entity by the 2016 World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues. Other than lymph nodes, systemic ALK- ALCL may affect extranodal tissues, sites where the inflammatory background may be especially prominent. In this scenario, myxoid change is exceptional in systemic ALK- ALCL. We describe a rare case of systemic ALK- ALCL with distinctive myxoid changes, carrying specific chromosomal aberrations that affect the clinical outcome. Careful morphological, immunohistochemical, and molecular workup is mandatory because a myxoid background should not be a reason to ignore the possibility of a lymphoma. Finally, extensive correlation with staging and the detection of prognostic biomarkers such as DUSP22 and TP63 rearrangements are essential for the diagnosis and prediction of clinical outcome in ALK- ALCL.

The clinical management of patients with relapsed or refractory multiple myeloma is challenging and there is a paucity of tools to help clinicians make more informed decisions for the most suitable treatment options. We aimed to investigate the clinical utility of the International Myeloma Working Group (IMWG) frailty score in the setting of relapsed or refractory multiple myeloma, by examining its ability to capture different patient-reported health-related quality of life profiles.We did a cross-sectional analysis of a prospective observational study of patients with relapsed or refractory multiple myeloma in Italy and the UK (30 hospitals across northern, central, and southern Italy, and one hospital in London, UK). Inclusion criteria were age 18 years or older and patients who had received at least one previous line of therapy and no more than five lines. Participants were excluded if they had a psychiatric disorder or major cognitive dysfunction, or any grade 3 or higher adverse event within 2 weeks before study entry. On study initiation, physicians had to assess frailty according to the IMWG criteria, which included the Charlson Comorbidity Index, the Katz Activity of Daily Living, and the Lawton Instrumental Activities of Daily Living. Patients were asked to complete patient-reported outcome measures, including the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core30 (EORTC QLQ-C30) and its validated multiple myeloma module (QLQ-MY20). A multivariable linear regression model was used to assess the mean differences in health-related quality of life scores between frailty groups to account for key potential confounding factors.Overall, between Nov 13, 2017, and Nov 15, 2021, 415 patients with relapsed or refractory multiple myeloma, with a median age of 69·8 years (IQR 62·8-75·2) were enrolled. The median time since diagnosis was 4·4 years (IQR 2·5-7·1) and most patients (351 [85%]) had received at least two previous lines of therapy. According to the IMWG frailty score, 200 (48%) were classified as fit, 112 (27%) were classified as intermediate-fit, and 103 (25%) patients were classified as frail. Each frailty group was associated with a distinct health-related quality of life profile, with most notable differences between fit and frail patients. The largest clinically meaningful adjusted differences between fit and frail patients by the EORTC QLQ-C30 questionnaire were observed for physical functioning (Δ=-19·0 [95% CI -25·6 to -12·5; p0·0001), fatigue (Δ=16·7 [9·7 to 23·7]; p0·0001), insomnia (Δ=13·4 [4·1 to 22·6]; p=0·0047), and dyspnoea (Δ=12·5 [4·6 to 20·4]; p=0·0021). The most prevalent clinically important symptom in the overall population was pain; however, its prevalence varied between IMWG frailty groups at 70·9% in frail patients, 55·9% in intermediate-fit patients, and 50·5% in fit patients.Our findings show the clinical utility of the IMWG frailty score in the setting of relapsed or refractory multiple myeloma, in helping to distinguish between groups of patients with distinct health-related quality of life profiles. Further research is needed to examine the value of patient-reported outcome data in improving assessment of frailty in the setting of relapsed or refractory multiple myeloma.Fondazione GIMEMA Franco Mandelli Onlus and Amgen.

The SARS-CoV-2 (COVID-19) outbreak is upending current life and generating much anxiety and uncertainty. The effects of home confinement, social isolation, cancelled schools, closed businesses, and negative economic impacts have had serious consequences. Hematologic patients (HP) are a subset of highly vulnerable population with increased risk of developing severe COVID-19 symptoms due to their immunocompromised status. These risks have been augmented during the COVID outbreak because of deviations from current standards of care, e.g., reduced visits, treatment supply and access to routine exams. This study investigated the impact of the current pandemic on HP assessing demographics, medical information, mental health and caregiver practical management. In collaboration with AIL (Italian Association against Leukemia) and CNR (National Research Council), a survey was generated and distributed to Italian HP. The general population (GP) were used as controls. The assessment used the DASS-21 questionnaire, a self-reported, 21 item screening instrument that provides independent measures of depression, stress and anxiety with recommended severity thresholds subscales. The survey was self-administered between April and August, 2020. The questionnaires' reliability was verified based on an analysis of its internal consistency using Cronbach's alpha. As of 30 June 2020, 1113 HP and 1125 GP completed the survey from 20 Italian Regions. The two population groups were homogeneous by age, gender and distribution and included regions at both high (CHP) and low (CLP) prevalence of infections at the time of the survey. HP and GP median age was 50 years (range: HP 11- 93; GP 13-85). 61% HP and 68% GP were female; the rest were male. The year of diagnosis of hematological disease ranged from 1965 to 2020; 21.9% had chronic myeloid leukemia, followed by Hodgkin (15.7%) and non-Hodgkin (15.9%) lymphomas, chronic myeloproliferative neoplasms (15.9%), multiple myeloma (8.9%), chronic lymphocytic leukemia (4.9%), acute myeloid (5.6%) and lymphoblastic (3.25%) leukemias, other (7%). 1071 HP and 1125 GP responded about their occupation as follows: employed full/part time (38.7% HP , 47.7% GP), retired (19.2% HP,10.8% GP), freelancer (9.2% HP, 12.2% GP), unemployed (6.2% HP, 3.4% GP) , students (4.6% HP, 3.2% GP), company executive (4.1% HP, 4.8% GP), manager (2% HP, 4.7 % GP), cooperative member (0.7% HP , 0.7% GP), housewife (8.5% HP 4.8% GP), other (6.8% HP,7.7% GP). During the pandemic 63.7% HP didn't work and 36.3% did work compared to the GP group (33.8% didn't; 66.2 % did). Where specified, the reasons for not working were: layoffs (10.9% HP, 15.9% GP), lack of work (8.1%HP, 15.6 % GP), vacation/ parental leave (4.4% HP, 3.5% GP), reduced business activity for economic reasons (2.2% HP, 3.3% GP), occasional work (2.1% HP, 5.7% GP), seasonal employment, (0.6% HP,1.1 % GP). 625/1073 HP (58.2%) were in active treatment. Of these, 40.1% were in Day Hospital, 56.4% were outpatient; and 3.5% inpatients. The remaining HP were off therapy (448/1073; 41.8%). 1105 HP and 1127 GP responded to the DASS questionnaire. Extremely severe depression was found in 12.9% HP vs 7% GP; 18.1% HP expressed severe anxiety vs 9.6% GP and extremely severe stress was present in 7.1% HP and 5.3% GP. The Cronbach's alpha coefficient for the internal homogeneity of the questionnaire was 0.95, confirming the cohorts correctness (0.8 or greater, indicates a very good level of reliability). Providing care to HP during the pandemic has been challenging for both patients and doctors. Restrictions on visits and lab/instrumental exams, reduced equipment supply and a paucity of personal protection equipment (PPEs) for health care providers and patients have penalized normal routine care. As a result, 38.2% HP postponed or did not attend scheduled therapy and >50% had difficulty obtaining PPEs through normal sources; 57% in CHP and 36% in CLP regions had to buy them themselves. To our knowledge this is the first report of the impact of the pandemic on psychological distress, work consequences and illness management in HP. Most of HP in this study are outpatients in active treatment. Interesting data emerged from job losses, which is more common among HP. The DASS-21 instrument revealed higher anxiety and depression levels in HP. Detailed results including longitudinal analysis and high versus low geographic prevalence of COVID-19 infections will be presented. Figure 1 Disclosures Abruzzese: Incyte: Consultancy, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Pfizer: Consultancy, Membership on an entity's Board of Directors or advisory committees; Bms: Honoraria.

Background: Native arteriovenous fistula is the preferred vascular access in term of functionality, efficiency and complication rate. Nevertheless, research continues to seek strategies to reduce the risk of neointimal hyperplasia and hemodynamic modification. The aim of the study was to evaluate the impact on hemodynamic of the VasQ device in arteriovenous fistulae creation. Methods: The analysis included patients who underwent to fistula creation with or without implantation of the VasQ device between May and September 2019. The hemodynamic parameters were evaluated pre-operatively and at a follow-up of 1, 3, 6 months. The patency and complication rate were evaluated. Results: Fifteen VasQ devices were implanted during 30 arteriovenous fistula surgery. The baseline patients features were similar between groups (VasQ treated/control). At baseline, preoperative arterial flow was similar; radial artery diameter at surgical site was 3.4 ± 0.8 mm in treated and 2.8 ± 0.5 mm in the control group. The mean arterial flow at 1 month was 480 ± 210 mL/min in treated and 561 ± 27 mL/min in the control group. At 3 months the mean arterial flow in treated was 645 ± 143 mL/min versus 824 ± 211 mL/min ( p = 0.02) in the control group; at 6 months the arterial flow was 714 ± 146 mL/min versus 810 ± 194 mL/min ( p = 0.05) in control group. The cardiac output flow at 6 months in the treated group was 4458 ± 928 mL/min versus 5599 ± 1355 mL/min ( p = 0.05) in the control group. At 6 months the primary patency was 73% and 80% and the secondary patency 80% and 86% in treated compared to the control group, respectively. No VASQ device complications were recorded. Conclusion: The analysis of these data suggested that using VasQ device could be protective against the hemodynamic modification that occur during arteriovenous fistulae creation.

Aims: To define the peculiar features of patients with the deletion of the chromosome 20 long arm (del20q), data from 69 patients with myelodysplastic syndromes (MDSs) and isolated del20q, followed by the Gruppo Romano-Laziale Sindromi Mielodisplastiche (GROM-L) and Ospedale Torrette of Ancona, were collected and compared with those of 502 MDS patients with normal karyotype (NK-MDS). Results: Compared to the NK-MDS group, patients with del20q at diagnosis were older (p = 0.020) and mainly male (p = 0.006). They also had a higher rate of bone marrow blast < 5% (p = 0.004), a higher proportion of low and int-1 risk according to IPSS score (p = 0.023), and lower median platelet (PLT) count (p < 0.001). To date, in the del20q cohort, 21 patients (30.4%) received no treatment, 42 (61.0%) were treated with erythropoiesis-stimulating agents (ESA), 3 (4.3%) with hypomethylating agents, and 3 (4.3%) with other treatments. Among 34 patients evaluable for response to ESA, 21 (61.7%) achieved stable erythroid response according to IWG 2006 criteria and 13 (38.2%) were resistant. Nine patients (13.0%) progressed to acute myeloid leukaemia (AML) after a median time from diagnosis of 28 months (IR 4.1–51.7). The median overall survival (OS) of the entire cohort was 60.6 months (95% CI 54.7–66.4). the 5-year cumulative OS was 55.9% (95% CI 40.6–71.2). Conclusion: According to our results, we hypothesize that MDSs with isolated del 20q may represent a distinct biological entity, with peculiar clinical and prognostic features. The physio-pathological mechanisms underlying the deletion of the chromosome 20 long arm are still unclear and warrant future molecular analysis.

Simple Summary Roughly 85–90% of adult and pediatric acute myeloid leukemia (AML) are CD33-positive. Gemtuzumab ozogamicin (GO), a humanized murine IgG4 anti-CD33 antibody, is the first target therapy approved in AML therapeutic scenario. This review focuses on current biological information and clinical data from several studies investigating the use of GO in patients with AML. Over the years, flow cytometry, cytogenetics, molecular techniques, and genotyping studies of CD33 SNPs have provided a comprehensive analysis of promising biomarkers for GO responses and have potentially helped to identify subgroups of patients that may benefit from GO addition to standard chemotherapies. Increased understanding of molecular mutations, altered intracellular pathways, and their potential relationship with CD33 expression may open new therapeutic landscapes based on combinatorial regimens in an AML scenario. Abstract Acute myeloid leukemia (AML), the most frequent acute leukemia in adults, has been historically treated with infusional cytarabine (ara-c) + daunorubicin (3 + 7) for at least 40 years. The first “target therapy” to be introduced was the monoclonal anti-CD33 gemtuzumab ozogamicin (GO) in 2004. Unfortunately, in 2010 it was voluntarily withdrawn from the market both for safety reasons related to potential liver toxicity and veno-occlusive disease (VOD) and because clinical studies failed to confirm the clinical benefit during induction and maintenance. Seven years later, GO was re-approved based on new data, including insights into its mechanism of action on its target receptor CD33 expressed on myeloid cells. The present review focuses on current biological information and clinical data from several studies investigating GO. Cytogenetic, molecular, and immunophenotypic data are now able to predict the potential positive advantages of GO, with the exception of high-risk AML patients who do not seem to benefit. GO can be considered a ‘repurposed drug’ that could be beneficial for some patients with AML, mostly in combination with new drugs already approved or currently in testing.

Simple Summary Acute Myeloid Leukemias (AMLs) are rapidly progressive clonal neoplastic diseases. The overall 5-year survival rate is very poor: less than 5% in older patients aged over 65 years old. Elderly AML patients are often "unfit" for intensive chemotherapy, further highlighting the need of highly effective, well-tolerated new treatment options for AMLs. Growing evidence indicates that AML blasts feature a highly diverse and flexible metabolism consistent with the aggressiveness of the disease. Based on these evidences, we targeted the metabolic peculiarity and plasticity of AML cells with an association of ascorbate, which causes oxidative stress and interferes with hexokinase activity, and buformin, which completely shuts down mitochondrial contributions in ATP production. The ascorbate-buformin combination could be an innovative therapeutic option for elderly AML patients that are resistant to therapy. In the present study, we characterized the metabolic background of different Acute Myeloid Leukemias' (AMLs) cells and described a heterogeneous and highly flexible energetic metabolism. Using the Seahorse XF Agilent, we compared the metabolism of normal hematopoietic progenitors with that of primary AML blasts and five different AML cell lines. We assessed the efficacy and mechanism of action of the association of high doses of ascorbate, a powerful oxidant, with the metabolic inhibitor buformin, which inhibits mitochondrial complex I and completely shuts down mitochondrial contributions in ATP production. Primary blasts from seventeen AML patients, assayed for annexin V and live/dead exclusion by flow cytometry, showed an increase in the apoptotic effect using the drug combination, as compared with ascorbate alone. We show that ascorbate inhibits glycolysis through interfering with HK1/2 and GLUT1 functions in hematopoietic cells. Ascorbate combined with buformin decreases mitochondrial respiration and ATP production and downregulates glycolysis, enhancing the apoptotic effect of ascorbate in primary blasts from AMLs and sparing normal CD34+ bone marrow progenitors. In conclusion, our data have therapeutic implications especially in fragile patients since both agents have an excellent safety profile, and the data also support the clinical evaluation of ascorbate-buformin in association with different mechanism drugs for the treatment of refractory/relapsing AML patients with no other therapeutic options.

Background There is now great interest in using digital health tools to monitor patients' health status in real-world practice. Such tools often include electronic-patient-reported outcome (ePRO) systems in which symptoms questions are included into online interfaces for patient self-reporting, with real-time alerts triggered to the treating physician if severe symptoms or problems are reported. However, there is little information about the clinical utility and user perceptions of these systems, and this is particularly true in the area of hematology. Objectives This study investigates physicians' perceptions of usability and clinical utility of using remote ePROs in routine practice of patients with hematologic malignancies and explored implications in the delivery of patient care. Patients and Methods Remote ePROs are being gathered since December 2020 by the ALLIANCE Digital Health Platform, whose details of the development process have been previously described (Efficace F. et al., JMIR Res Protoc. 2021 Jun 1;10:e25271). Adult patients diagnosed with any hematologic malignancy are eligible to enter the platform, after having provided written informed consent. Aspects related to health-related quality of life (HRQoL), symptoms and medication adherence are assessed via validated PRO measures. The platform allows for real-time graphical presentation to physicians of individual patient symptoms and HRQoL outcomes. Based on a pre-defined algorithm, which includes the presence of clinically important problems and symptoms, the platform triggers automated alerts to the treating haematologists and medical staff. The definition of clinically important problems and symptoms is based on previously defined evidence-based thresholds (Giesinger J. et al., J Clin Epidemiol. 2020 Feb;118:1-8). We asked treating haematologists a feedback about their experience in using the platform, by an ad hoc web-survey consisting of 27 items covering several domains, including: usability and benefits, current use, evaluation of patient health-status, symptoms and adverse events, as well as physician-patient communication. We summarized characteristics of enrolled patients and treating haematologists by proportions, mean, median and range. We also used logistic regression analysis to check the possible association of characteristics of haematologists with survey results. Results Of the 201 patients invited to participate between December 2020 and June 2021 (cut-off date for current analysis), 180 (90%) accepted to enter the ALLIANCE platform, currently activated in 19 centers. The median age of patients was 57 years (range 21-91) and 58% were males. The majority were diagnosed with chronic myeloid leukemia (n=32, 18%) and multiple myeloma (n=31, 17%) and were in stable disease (n=89, 49%). Twenty-three hematologists (44% males) with a median age of 42 years (range 31-63) and an average 17 years (range 5-34) of experience in clinical practice, completed the survey. The majority of physicians (78%) accessed the platform at least once per month (of whom 39% at least once per week), regardless the alerts sent by the system about patients' clinically relevant problems. The frequency of access on a regular basis was also independent of physician sex (p=0.393) and years of experience in clinical practice (p=0.404). Overall, 57% of hematologists discussed often or very often ePROs with their patients, while 83% and 61% deemed this information helpful to better identify symptomatic adverse events (AEs) of grade 1-2 or of grade 3-4, respectively (see figure). Also, 87% and 91% of hematologists found ePROs useful to improve physician-patient communication and the accuracy of documentation of symptomatic AEs (regardless of severity), respectively. Physicians' responses to selected items of the survey are reported in the figure. Conclusions: Current findings support the clinical utility, from the perspective of the treating physician, of integrating ePROs into routine cancer care of patients with hematologic malignancies. Figure 1 Figure 1. Disclosures Efficace: Takeda: Consultancy; Janssen: Consultancy; Abbvie: Consultancy, Other: Grants (to Institution); Amgen: Consultancy, Other: Grants (to Institution). Breccia: Bristol Myers Squibb/Celgene: Honoraria; Pfizer: Honoraria; Abbvie: Honoraria; Incyte: Honoraria; Novartis: Honoraria. Fazio: Janseen: Honoraria. Petrucci: Karyopharm: Honoraria, Other: Advisory Board; GSK: Honoraria, Other: Advisory Board; Amgen: Honoraria, Other: Advisory Board; Takeda: Honoraria, Other: Advisory Board; BMS: Honoraria, Other: Advisory Board; Janssen-Cilag: Honoraria, Other: Advisory Board; Celgene: Honoraria, Other: Advisory Board. Rigacci: Merck: Membership on an entity's Board of Directors or advisory committees; Abbvie: Membership on an entity's Board of Directors or advisory committees; Janssen: Membership on an entity's Board of Directors or advisory committees; Takeda: Membership on an entity's Board of Directors or advisory committees, Other: Travel, Accomodations, Expenses; Gilead Science: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Roche: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Menarini: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Tafuri: Roche: Research Funding; Celgene: Research Funding; Novartis: Research Funding. Siragusa: Novartis, CSL, Behring, Amgen, Novonoridsk, SOBI, Bayer: Consultancy, Honoraria, Speakers Bureau. Patriarca: Incyte: Honoraria; Takeda: Honoraria; Novartis: Honoraria; Amgen: Honoraria; Pfizer: Honoraria; Argenix: Honoraria. Luppi: Abbvie: Honoraria; Novartis: Honoraria; Sanofi: Honoraria; MSD: Honoraria; Gilead Science: Honoraria, Other: Travel grant; Daiichi-Sankyo: Honoraria; Jazz Pharma: Honoraria. Vignetti: Novartis: Honoraria; Incyte: Honoraria; Amgen: Consultancy, Honoraria.

An unmet clinical need currently exists for elderly patients with relapsed/resistant (R/R) Philadelphia (Ph) positive acute lymphoblastic leukemia (ALL), nearly all who have a very poor prognosis. This includes patients already exposed to the first or second generation tyrosine kinase inhibitors (TKIs) and therefore has few treatment options available. New immunotherapies and targeted agents have shown encouraging activity in R/R ALL irrespective of age. Inotuzumab (InO), a humanized anti-CD22 monoclonal antibody, has potentially beneficial clinical effects in patients with resistant and difficult-to-treat disease in whom prior TKIs have failed. However, InO, as a single agent, did not show durable response and longer progression free survival and overall survival in R/R Ph positive ALL patients compared with those treated with standard chemotherapy. We observed a durable molecular remission (7 months) in an elderly patient affected by Ph'+ ALL with T315I and concomitant p190 and p210 expression achieved by concomitant therapy of InO (for 4 cycles) and ponatinib (15 mg/daily) followed by ponatinib (15 mg/daily) only as maintenance therapy. These findings suggest that elderly R/R Ph positive patients who cannot proceed to the transplant might benefit by concomitant immunotherapy and TKIs aimed to deepen the responses and prolong CR and outcomes.