IGH mutation

Our findings highlight the diverse prognostic influence of genetic aberrations depending on the IGHV status in symptomatic CLL patients receiving first-line CIT. The prognosis of gene mutations and cytogenetic abnormalities needs to be investigated with a compartmentalized methodology, taking into account the IGVH status of patients receiving first-line BTK and/or BCL2 inhibitors.

Undetectable minimal residual disease at the end of treatment with chemoimmunotherapy or venetoclax-based combination regimens is an independent predictor of improved survival among patients with previously untreated or relapsed/refractory CLL/SLL. The selection of treatment is based on the disease stage, presence or absence of del(17p) or TP53 mutation, immunoglobulin heavy chain variable region mutation status, patient age, performance status, comorbid conditions, and the agent's toxicity profile. This manuscript discusses the recommendations outlined in the NCCN Guidelines for the diagnosis and management of patients with CLL/SLL.

To better understand the impact of the second-generation BTKi acalabrutinib, we pooled data from 5 prospective clinical studies of acalabrutinib as monotherapy or in combination with obinutuzumab (ACE-CL-001, ACE-CL-003, ELEVATE-TN, ELEVATE-RR, and ASCEND) in patients with higher-risk CLL in treatment-naive (TN) or relapsed/refractory (R/R) cohorts. The safety profile of acalabrutinib-based therapy in this population was consistent with the known safety profile of acalabrutinib in a broad CLL population. Our analysis demonstrates long-term benefit of acalabrutinib-based regimens in patients with higher-risk CLL, regardless of line of therapy.

Among them, subset #2 with mutated IGHV and poor prognosis, as well as the subset #8 with a high risk of Richter transformation, have been recommended by the European Research Initiative on CLL to be included in clinical reports on IGHV mutational status. This review summarizes the definition, distribution, biological characteristics, and clinical significance of clonality patterns of the BCR in CLL.

Our findings support ongoing assessment of prognostic tools in CLL treatment evolution. CLL2-BIG (NCT02345863), CLL2-BAG (NCT02401503), CLL2-BIO (NCT02689141), CLL2-BCG (NCT02445131), CLL2-GIVe (NCT02758665), CLL13 (NCT02950051), CLL14-trial (NCT02242942), CLL1 (NCT00262782), CLL8 (NCT00281918), and CLL11 (NCT01010061).

Although clarity on clinical behavior with regard to initiation of treatment remains elusive, IPS-E and AIPS-E are valuable tools for identifying high-risk patients.

These findings also underscore the need for multicentric efforts aggregating data on BL-IGHV CLL in order to elucidate its disease course and optimize therapeutic approaches for this rare subgroup. Until then, predicting outcomes and optimal management of BL-IGHV CLL will remain challenging.

Risk factors for fragility fractures included male sex (relative risk [RR] 8.1, 95% confidence interval [CI] 2.1-31.7), diabetes mellitus (RR 1.4, 95% CI 1.04-1.8), smoking (RR 1.3, 95% CI 1.02-1.8), Rai stage >0 (RR 1.4, 95% CI 1.04-1.9), and T-score >-2.5 (RR 1.8, 95% CI 1.1-3.1). There is a high frequency of vertebral FFs in people with CLL despite T-scores not being in the osteoporotic range. Increased awareness to screen and treat vertebral FFs in people with CLL is needed.

On the opposite side of the spectrum, IGHV mutated patients devoid of TP53 disruption benefit the most from fixed-duration therapy with venetoclax-obinutuzumab. In the context of the aggressive transformation of CLL, namely Richter syndrome, the clonal relationship to the CLL counterpart represents the strongest prognostic biomarker. Clonally related Richter syndrome still represents an unmet clinical need which requires further efforts to identify new therapeutic strategies.

In addition to summarizing the evidence for venetoclax's efficacy and safety, this review uses hypothetical patient scenarios based on risk level for TLS (high, medium, low) to share the authors' clinical experience with venetoclax initiation and present global approaches utilized in various treatment settings. These hypothetical scenarios highlight the importance of a multidisciplinary approach and shared decision-making, outlining best practices for venetoclax initiation and overall optimal treatment strategies in patients with CLL.

The use of chemo-immunotherapy combining cladribine (CDA) and rituximab (R) represents an increasingly used therapeutic approach. Management of relapsed/refractory disease is based on the use of BRAF inhibitors (BRAFi) plus R, MEK inhibitors (MEKi), recombinant immunoconjugates targeting CD22, Bruton tyrosine kinase inhibitors (BTKi), and Bcl-2 inhibitors (Bcl-2i). However, the optimal sequence of the different treatments remains to be determined.

Patient demographics, baseline characteristics, and blood chemistry at baseline were documented, and descriptive statistical analyses were conducted.Seventy eight patients (33%) were treated with venetoclax monotherapy, 101 (42%) with venetoclax in combination with rituximab and 60 (25%) with venetoclax in combination with obinutuzumab. There were no deaths due to a TLS event and venetoclax was well-tolerated. Of the 5 clinical TLS events reported, none were fatal or resulted in renal failure (NCT03342144, registered on Nov 10, 2017).

A comprehensive analysis of genetic prognostic factors provides a more precise information on the outcome of CLL patients. In addition to FISH cytogenetic aberrations, IGHV and TP53 mutations, IGHV gene families, and CK information could help clinicians in the decision-making process.

Beyond its retrospective nature, this review could be a valuable resource for clinicians, researchers, and stakeholders, offering a window into the latest advancements. In essence, it serves as a dynamic exploration of our current position and the promising prospects on the horizon.

In our cohort, disease progression and infections were the leading cause of death. These findings pointed out the clinical need for a screening process strategic for defining infectious risk at the time of CLL diagnosis, with a significant enhancement in the clinical management of these patients.

A targeted capture approach to IGHV SHM detection can be integrated into broader sequencing panels, allowing broad CLL prognostication in a single molecular assay.

Indeed, we show that CCL19- and CCL21-induced chemotaxis is regulated by and dependent on the expression of ZAP-70 through its function to enhance CCR7 signaling to LCP1. Thus, our data demonstrate that ZAP-70 converges a tonic BCR signal, exclusively present in IGHV unmutated CLL, and CCR7-mediated chemotaxis.

Histopathology is still the main standard for the diagnosis of cMCL, and detection based on bone marrow or peripheral blood samples is an important means for the diagnosis of lnnMCL. Single marker or examination can cause a certain proportion of misdiagnosis. The accurate diagnosis of MCL depends on a combination of multiple detection methods.

After 4 years of follow-up, ibrutinib-venetoclax continues to significantly prolong progression-free survival (vs chemoimmunotherapy) in patients with previously untreated chronic lymphocytic leukaemia, supporting its use as a first-line option.

ACCC identified regional challenges and solutions to appropriate and equitable care for patients with CLL, including the importance of comprehensive diagnostic work-up before treating, understanding the regional needs of patient populations (particularly underserved populations), building community partnerships, and engaging in targeted provider education.

IGHV mutational analysis is not available for most patientsTreatment patterns showed chemoimmunotherapy (CIT) in 10/24 patients (Bendamustine rituximab N=8 and FCR N= 2), BTK inhibitors as single agent 9/24 while 5/24 patients receive Venetoclax R in combination with Anti CD 20 antibody. This is the first report on CLL seen in a large tertiary care center in UAE over a period of 5 years. The number of patients is significantly less (3%) as compared to incidence in western hemisphere (35%) of all leukemia cases. Median age (59 years) is at least a decade earlier than western hemisphere with a preponderance in males.

Background: Fludarabine, cyclophosphamide, and rituximab (FCR) is the standard first-line therapy for fit (physically active, with no major health problems and normal renal function) treatment-naive patients with chronic lymphocytic leukemia (CLL) (Eichhorst et al...2016) investigated FCR and bendamustine + rituximab (BR), while the SEQUOIA trial compared zanubrutinib to BR (NCT03336333; Tam et al... Our findings suggest that zanubrutinib offers clinically meaningful benefits in PFS over FCR in fit treatment-naive patients with CLL. MAICs rely on reporting of relevant patient characteristics in published studies. In the current study, ZAP-70 methylation and TP53 mutation, which were considered treatment effect modifiers, were not reported in CLL10 and were not accounted for in the propensity model.

Sotrovimab was the most common treatment received for COVID-19 (20% of patients, n=8/40). This IA reports 12 and 24-month real-world acalabrutinib continuation rates of 81. 0% (95% CI, 73. 7%-89.

Despite this, the kinetics of lymphocytosis are not overlapping in the two groups: since the sixth month of therapy ALC reaches almost-normal values in the Acalabrutinib group, with significant statistical differences compared to Ibrutinib. These data suggest that lymphocytosis seems to be less long-lasting in patients treated with Acalabrutinib than in those ones treated with Ibrutinib and the response criterion of PR-L may have a less scope for applicability during treatment with Acalabrutinib.

Using genome wide sequencing, we identify increasing genomic deletions as a feature of enhanced-high risk del17p. While deletion burden cut-offs identified here are specific to our research method and require further validation in additional independent cohorts, EHR subgroup remained significant after adjusting for other known prognostic variables .

In this Belgian real-world study, ibrutinib was found to be an effective treatment for patients with CLL, including those with higher risk mutations, several prior LOTs, and older age, with first-line patients who joined the study later responding particularly well. These findings are consistent with those from clinical trials, which support more effective outcomes for ibrutinib when utilized in the frontline (eg, RESONATE-2: Barr PM, et al. Blood Adv.

In conclusion, by assessing the individual contribution of DME and TL to disease survival, we found that both variables offer valuable independent prognostic information when included in statistical models with poor-risk genomic lesions. TL and DME could help identify IGHV-mutated patients destined to respond poorly to (immuno-)chemotherapy, that might be more favourably treated with targeted agents.

SEQUOIA study demonstrated superior efficacy of frontline zanubrutinib than bendamustine-rituximab combination, and ALPINE study showed improved overall response rate (ORR) and progression free survival (PFS) of zanubrutinib than ibrutinib in relapsed/refractory chronic lymphocytic leukemia (R/R CLL). Despite an improved safety profile, AE remained the main reason of zanubrutinib dose reduction, and dose reduction significantly associated with shorter PFS and OS. Therefore, better treatment strategies such as combined targeted therapy are required to improve the outcomes of these pts.

Using the TME system, we have demonstrated that modeled drug response correlates well with patient clinical response to BTK inhibitor ibrutinib and BCL2 inhibitor venetoclax...To test the hypothesis, we exposed CLL cells in the TME model system to covalent and noncovalent BTKi including ibrutinib, zanubrutinib, and pirtobrutinib at clinically achievable concentrations...Furthermore, plerixafor blocks ibrutinib-driven CIC in cell lines as well as in primary CLL cells...B. One CLL cell was captured halfway in.

Non-melanoma skin (NMSC) and prostate cancers were the most common solid tumors (STs).The only predictor for MDS and AML development was treatment with fludarabine and cyclophosphamide with/without rituximab (FC ± R) (OR = 3.7; 95% CI = 2.79-4.91; p < 0.001). FCR was associated with increased risk for AML/MDS. AbbVie, and EU/EFPIAInnovative Medicines Initiative Joint Undertaking HARMONY grant n° 116026.

P3, N=553, Active, not recruiting, AstraZeneca | Phase classification: P3b --> P3

The BTK inhibitors, ibrutinib and acalabrutinib, and BH3 mimetic venetoclax are now indicated as first-line therapy and chemoimmunotherapy can be spared to the majority of CLL patients, thus preventing unnecessary hematological and non-hematological toxicity and second primary tumors. With the availability of different drugs, there is a need for a uniform and shared approach in daily therapeutic choice. The proposed approach is based on current evidence and guidelines as well as results from clinical trials and daily clinical experience.

We describe the case of a 62-year-old patient diagnosed in 2003 with CLL, previously treated with Chlorambucil, and chemo-immunotherapy with R-CVP regimen. Conclusions. The fixed-duration treatment with Ven-R showed 254 high efficacy and feasibility even in patients with renal failure on dialysis and with high hemorrhagic risk, for which BTK-inhibitors may not represent a safe therapeutic alternative.

Thus, nucleosome positioning constitutes a novel readout to dissect molecular mechanisms of disease progression and to stratify patients. Furthermore, we anticipate that the global nucleosome repositioning detected in our study, such as changes in the NRL, can be exploited for liquid biopsy applications based on cell-free DNA to stratify patients and monitor disease progression.

Acknowledgments. GB was supported by Fundación Alfonso Martín Escudero.

Our study confirms that TP53 mutations result in shorter PFS and OS in CLL. We demonstrate improved PFS when patients with ATM or RPS15 mutations are treated with IR compared to FCR. Mutations in the CREBBP gene have recently been described as a novel candidate driver in CLL.

Only 2 pts developed VTE during active R2 and both were not taking prophylactic aspirin. In this long-term pooled f/u analysis of CLL pts, we found that R2 provided high ORR, modest PFS and OS benefit, and tolerable long-term toxicities. The ORR of R2 in this study (82.3%) compares favorably to ORR of R monotherapy in previous studies (51%, Hainsworth et al, JCO 2003). The absence of secondary myeloid neoplasms suggests that len may not substantially increase cumulative secondary malignancy risk—the cumulative cutaneous neoplasm incidence may reflect elevated baseline risk in CLL pts.

Background: A phase II trial has shown, first-line treatment with iFCG (ibrutinib, fludarabine, cyclophosphamide, and obinutuzumab) led to a bone marrow (BM) undetectable minimal residual disease (uMRD) rate of 98% (44/45) as best response in treatment-naïve patients with chronic lymphocytic leukemia/small lymphocytic leukemia (CLL/SLL). This is the first clinical trial exploring the efficacy and safety of the second generation BTKi plus chemoimmunotherapy in patients with CLL. The OFCG regimen shows a rapid and deep molecular remission with a pleasant safety profile in the TN CLL patients including the ones with unfavorable factors.

In clinical trials, treatment with Venetoclax in combination with Obinutzumab (VenO) has shown promising efficacy and good tolerability in all subgroups1...Reassuringly, CR/CRi rates were high in patients with TP53 aberration or IGHV unmutated patients. Treatment was well tolerated.

There was considerable discordance between HCP and expert treatment choices for various case scenarios in multiple educational activities; for example, for patient cases without del(17p)/TP53-mutated/IGHV-mutated CLL and bulky disease with diminished creatinine clearance, experts would recommend acalabrutinib with or without obinutuzumab for 77% of scenarios, while HCPs selected this treatment 35% of the time (Table)...One half of responding HCPs (52%) were able to identify characteristics that would qualify a patient for inpatient administration of the initial doses of venetoclax because of increased risk of tumor lysis syndrome (n = 48). Finally, among 213 HCPs participating in educational activities from September 2022 to June 2023, 43% were aware of recent data regarding the use of pirtobrutinib, an investigational noncovalent BTK inhibitor, for treating patients with CLL... Our data suggest that many HCPs are challenged to optimally incorporate contemporary treatment recommendations into the care of patients with CLL and struggle to maintain knowledge of investigational therapies that may affect the treatment landscape in the near future. Continuing educational activities designed to improve the knowledge, competence, and confidence of HCPs in the care of CLL would benefit patients with this disease. A more detailed data analysis of treatment trends and knowledge by geographic location and role on the care team will be presented.

To our knowledge, this is the largest real-world study examining treatment-naive elderly patients receiving ibrutinib as first-line therapy. Ibrutinib represents a suitable therapeutic choice even for patients aged >80 years with comorbidities. In this setting of patients, the drug was well tolerated and no new side effects were recorded.