Small-Sized Clone of T Cells in Multiple Myeloma Patient after Auto-SCT: T-LGL Leukemia Type or Clonal T-Cell Aberration?

Second cancers and particularly postransplant lymphoproliferative disorders (PTLDs) are extremely rare in patients undergoing autologous peripheral blood stem cell transplantation (auto-SCT). We report the case of clonally rearranged T-cell expansion which occurred after auto-SCT for Multiple Myeloma (MM). Does asymptomatic clonal T-cell large granular lymphocytic proliferation, in our experience, represent either a secondary cancer after auto-SCT or clonal T cell aberration or derive from expansion of coexisting undetected small-sized clone of T cells

Small-Sized Clone of T Cells in Multiple Myeloma Patient after Auto-SCT: T-LGL Leukemia Type or Clonal T-Cell Aberration?

Second cancers and particularly postransplant lymphoproliferative disorders (PTLDs) are extremely rare in patients undergoing autologous peripheral blood stem cell transplantation (auto-SCT). We report the case of clonally rearranged T-cell expansion which occurred after auto-SCT for Multiple Myeloma (MM). Does asymptomatic clonal T-cell large granular lymphocytic proliferation, in our experience, represent either a secondary cancer after auto-SCT or clonal T cell aberration or derive from expansion of coexisting undetected small-sized clone of T cells

The Italian Multicentric Randomized OPTkIMA Trial on Fixed vs Progressive Intermittent TKI Therapy in CML Elderly Patients: 3-Years of Molecular Response and Quality of Life Monitoring After Completing the Treatment Plan

Background: Intermittent treatment with tyrosine kinase inhibitors (TKIs) is an option for elderly chronic myeloid leukemia (CML) patients who are often candidates for life-long treatment. Materials and methods: The Italian phase III multicentric randomized Optimize TKIs Multiple Approaches (OPTkIMA) study aimed to evaluate if a progressive de-escalation of TKIs is able to maintain the molecular remission (MR)3.0 and to improve Health-Related Quality of Life (HRQoL) in CML elderly patients. Results: A total of 215 patients in stable MR3.0/MR4.0 were randomized to receive an intermittent TKI schedule 1 month ON-1 month OFF for 3 years (FIXED arm; n = 111) vs. a progressive de-escalation TKI dose up to one-third of the starting dose at the 3rd year (PROGRESSIVE arm; n = 104). Two hundred three patients completed the 3rd year of OPTkIMA study. At the last follow-up, MR3.0 loss was 27% vs. 46% (P = .005) in the FIXED vs PROGRESSIVE arm, respectively. None of these patients experienced disease progression. The 3-year probability of maintaining the MR3.0 was 59% vs. 53%, respectively (P = .13). HRQoL globally improved from the baseline to the 3rd year, without any significant difference between the 2 arms. After the 3rd year, the proportion of patients who was address to TKI discontinuation in the 2 arms was 36% (FIXED) vs. 58% (PROGRESSIVE) (P = .03). Conclusions: The intensification of intermittent TKI therapy is associated with a higher incidence of MR3.0 loss, but those patients who maintain the MR3.0 molecular response at the end of the study have been frequently considered eligible for TFR. The HRQoL generally improved during the de-escalation therapy in both randomization arms

The Italian Multicentric Randomized OPTkIMA Trial on Fixed vs Progressive Intermittent TKI Therapy in CML Elderly Patients: 3-Years of Molecular Response and Quality of Life Monitoring After Completing the Treatment Plan

Background: Intermittent treatment with tyrosine kinase inhibitors (TKIs) is an option for elderly chronic myeloid leukemia (CML) patients who are often candidates for life-long treatment. Materials and methods: The Italian phase III multicentric randomized Optimize TKIs Multiple Approaches (OPTkIMA) study aimed to evaluate if a progressive de-escalation of TKIs is able to maintain the molecular remission (MR)3.0 and to improve Health-Related Quality of Life (HRQoL) in CML elderly patients. Results: A total of 215 patients in stable MR3.0/MR4.0 were randomized to receive an intermittent TKI schedule 1 month ON-1 month OFF for 3 years (FIXED arm; n = 111) vs. a progressive de-escalation TKI dose up to one-third of the starting dose at the 3rd year (PROGRESSIVE arm; n = 104). Two hundred three patients completed the 3rd year of OPTkIMA study. At the last follow-up, MR3.0 loss was 27% vs. 46% (P = .005) in the FIXED vs PROGRESSIVE arm, respectively. None of these patients experienced disease progression. The 3-year probability of maintaining the MR3.0 was 59% vs. 53%, respectively (P = .13). HRQoL globally improved from the baseline to the 3rd year, without any significant difference between the 2 arms. After the 3rd year, the proportion of patients who was address to TKI discontinuation in the 2 arms was 36% (FIXED) vs. 58% (PROGRESSIVE) (P = .03). Conclusions: The intensification of intermittent TKI therapy is associated with a higher incidence of MR3.0 loss, but those patients who maintain the MR3.0 molecular response at the end of the study have been frequently considered eligible for TFR. The HRQoL generally improved during the de-escalation therapy in both randomization arms

Steroidal and non-steroidal third-generation aromatase inhibitors induce pain-like symptoms via TRPA1

AbstractUse of aromatase inhibitors (AIs), exemestane, letrozole and anastrozole, for breast cancer therapy is associated with severe pain symptoms, the underlying mechanism of which is unknown. The electrophilic nature of AIs suggests that they may target the transient receptor potential ankyrin 1 (TRPA1) channel, a major pathway in pain transmission and neurogenic inflammation. AIs evoke TRPA1-mediated calcium response and current in rodent nociceptors and human cells expressing the recombinant channel. In mice, AIs produce acute nociception, which is exaggerated by pre-exposure to proalgesic stimuli, and, by releasing sensory neuropeptides, neurogenic inflammation in peripheral tissues. AIs also evoke mechanical allodynia and decreased grip strength, which do not undergo desensitization on prolonged AI administration. These effects are markedly attenuated by TRPA1 pharmacological blockade or in TRPA1-deficient mice. TRPA1 is a major mediator of the proinflammatory/proalgesic actions of AIs, thus suggesting TRPA1 antagonists for the treatment of pain symptoms associated with AI use.</jats:p

3-YEARS and Beyond Study Completion Results of the Otpkima Randomized Clinical Trial in Elderly CML Patients

The goal of Treatment Free Remission (TFR) is achievable in no more than 25-30% of patients with Ph+ Chronic Myeloid Leukemia (CML) treated with Tyrosine Kinase Inhibitors (TKIs). Thus, for the great majority of patients, particularly for the elderly, the options are to continue TKI therapy life-long or to enter an intermittent TKI administration, as previously published ( Russo D et al, Blood 2013; Russo et al Blood Adv 2015). The probability of major molecular response (MMR or MR3.0) maintenance while on intermittent 1 month on/1 month off TKI at 1 year is 80%, as reported recently in the first interime analysis of the Italian prospective randomized OPTkIMA trial (Malagola M et al, Cancer Med 2021). This is the second interim report of OPTkIMA trial, in which elderly patients with Ph+ CML in sustained (≥ 2 years) confirmed major molecular response (MMR or MR3.0) or deep molecular response (MR4.0 or deeper) were randomly assigned to receive a FIXED intermittent schedule (1 month on/1 month off) vs a PROGRESSIVE intermittent schedule (1 month on/1 month off for the 1 st year, 1 month on/2 months off for the 2 nd year, 1 month on/3 months off for the 3 rd year). After the 3 rd year, clinicians were free to decide if maintain the intermittent schedule, discontinue TKI or resume TKI daily ( Malagola M et al, Cancer Med 2021). At last follow up, 203 patients are evaluable after randomization (104 FIXED vs 99 PROGRESSIVE). At 3 rd year (end of study protocol), by intention to treat, 28/104 (27%) and 45/99 (45%) patients discontinued OPTkIMA because of MR3.0 loss in the FIXED vs PROGRESSIVE arm, respectively (p=0.005). The percentages of patients who discontinued OPTkIMA because of MR3.0 loss at 1 st, 2 nd and 3 rd year in the FIXED vs PROGRESSIVE arm were: 24% in both arms (p=0.97), 1% vs 22% (p=0.001) and 3% vs 15% (p=0.01), respectively (Figure 1). The probability of survival without MR3.0 loss at 1, 2 and 3 years in the FIXED vs PROGRESSIVE arm were: 81%, 69% and 66% vs 81%, 59% and 53%, respectively (Figure 2; p=0.13). None of the patients who lost MR3.0 progressed to accelerated or blastic phase (AP/BP) and all of the patients regained the MR3.0 after continuous TKI resumption within 9 months. At the end of the 3 rd year from randomization, 61/104 (59%) and 36/99 (36%) patients were in MR3.0 or deeper response in the FIXED vs PROGRESSIVE arm, respectively (p=0.001). For these patients, comparing the two arms, Clinicians' choice was to maintain the ongoing intermittent schedule in 46% vs 28% of the cases (p=0.01), discontinue TKI with the goal of TFR in 36% vs 58% (p=0.03), and resume the TKI continuously in 18% vs 14% of the patients (p=0.59). The results of the OPTkIMA trial clearly confirm that a policy of intermittent TKI administration in elderly patients with Ph+ CML in MR3.0 or deeper response is safe, as no progression to AP/BP was observed. Furthermore, the great majority of protocol discontinuation for MR3.0 loss were recorded in the 1 st year (one month on and one month off in both arms). Then the cumulative incidence of patients who lost MR3.0 beyond the 1 st year was significantly higher in the PROGRESSIVE arm with a trend towards a higher probability of survival without MR3.0 loss in the FIXED arm (Figure 1). Finally, at the end of the study protocol (3 rd year), patients in MR3.0 or deeper response after a FIXED intermittent schedule were more likely addressed to maintain the same program, whereas patients included in the PROGRESSIVE arm were more frequently discontinued with the goal of TFR. This last observation represents a “real-life” CML management by Clinicians. It suggests that after a PROGRESSIVE intermittent therapy, patients were considered at high probability to safely maintain the TFR

Molecular response and quality of life in chronic myeloid leukemia patients treated with intermittent TKIs: First interim analysis of OPTkIMA study

Abstract Background Intermittent treatment with TKIs is an option for the great majority (70%–80%) of CML patients who do not achieve a stable deep molecular response and are not eligible for treatment discontinuation. For these patients, the only alternative is to assume TKI continuously, lifelong. Methods The Italian phase III multicentric randomized OPTkIMA study started in 2015, with the aim to evaluate if a progressive de‐escalation of TKIs (imatinib, nilotinib, and dasatinib) is able to maintain the molecular response (MR3.0) and to improve Health Related Quality of Life (HRQoL). Results Up to December 2018, 166/185 (90%) elderly CML patients in stable MR3.0/MR4.0 completed the first year of any TKI intermittent schedule 1 month ON and 1 month OFF. The first year probability of maintaining the MR3.0 was 81% and 23.5% of the patients who lost the molecular response regained the MR3.0 after resuming TKI continuously. Patients’ HRQoL at baseline was better than that of matched peers from healthy population. Women was the only factor independently associated with worse baseline HRQoL (p > 0.0001). Overall, global HRQoL worsened at 6 (p < 0.001) but returned to the baseline value at 12 months and it was statistically significantly worse in women (p = 0.001). Conclusions De‐escalation of any TKI by 1 month ON/OFF schedule maintains the MR3.0/MR4.0 in 81% of the patients during the first 12–24 months. No patients progressed to accelerated/blastic phase, all the patients (23.5%) losing MR3.0 regained the MR3.0 and none suffered from TKI withdrawn syndrome. The study firstly report on HRQoL in elderly CML patients moving from a continuous daily therapy to a de‐escalated intermittent treatment