Guide lines for management of adult histiocytic disease

BACKGROUND: Histiocytic disease is a diverse disease, characterized by multisystem involvement, diagnosis and management can be challenging. Guidelines are important tool to provide evidence-based management; however, guidelines for management of adult histiocytic disease are scarce. METHODOLOGY: A multidisciplinary team from Saudi Arabia developed guidelines to manage the adult histiocytic disease with an intention to provide standard of care for diagnosis and management of the most frequently encountered subtypes of adult histiocytic disease in the region. RESULTS: Detailed guidelines to different categories of histiocytic disease were finalized after review of many international guidelines and extensive literature review. CONCLUSION: Local guidelines for adults histiocytic disease was developed and can be shared with different hematology centers

Chemotherapy effect on fertility in male patients with Hodgkin and Non-Hodgkin Lymphoma

Introduction: The chemotherapeutic agents are effective in destroying cancerous cells for patient with hematological malignancies, but can damage the germinal cells. Hence, the infertility is the therapy-induced complication, which can be transient or permanent, depending on type of treatment protocol used and other factors. The aim of the study was to assess the fertility status among patients treated for Hodgkin lymphoma (HL) and Non-Hodgkin lymphoma (NHL). Methods: A chart review was done for patients followed up in hematology clinic. All male patients treated for hematological malignancies during the period from 2004-2014 were assessed. The infertility status was assessed using WHO infertility criteria. The fertility status was defined based on semen analysis or having a child post chemotherapy. The data was captured for type of protocol, number of cycles, fertility status, having a child pre and post chemotherapy, and sperm bank utilization. Results were summarized as frequency and percentages. Data was analyzed using SAS. Results: 400 medical charts were reviewed. 208/400 were included based on age inclusion criteria (18-60 years). 59/208 included based on available fertility data, of which 31 were diagnosed with HL, 21 NHL, 4 acute lymphocytic leukemia, and 3 acute myeloid leukemia. Only HL and NHL were considered for further analysis. 9/31 (29%) with HL and 1/21 (4.7%) with NHL had infertility prior to starting chemotherapy based on semen analysis with no follow-up fertility assessment done post-treatment. The final sample consisted of 42 patients who had data available on their fertility status post-treatment (22 HL and 20 NHL) (Figure 1). The mean age was 38 ± 8 years. 25(68%) had advanced disease. Among HL, 8/22 (36.36%) were fertile (7 conceived a child and 1 with normal semen analysis) (Figure 2). This includes 6 out of 9 (66.7%) patients who received ABVD protocol alone, 0 out of 6 who received ABVD + BEACOPP protocol, and 2 (28.6%) out of 7 who received salvage chemotherapy. Among the NHL, 11/20 (55%) were fertile (8 conceived a child and 3 with normal semen analysis) (Figure 2). This includes 7 out of 11 (63.6%) who received CHOP +/-Rituximab protocol, 3 out of 5 (60%) who received CHOP + other chemotherapy (MTX/CVP), 1 out of 3 (33.3%) who received only other chemotherapies (Hyper CVAD/MTX) (Figure 2). 9 out of 22( 41%) HL and 6 out of 20 NHL patients had sperm banking done, and only two utilized their sperms with one successful conception in a patient with NHL (Figure 3). Conclusion: Although the sample size is very small, we found a trend that may suggest HL to affect fertility and that ABVD protocol may not be as safe as it thought to be on fertility. The advanced stage of the disease being the majority may have influenced this finding. We found the documentation of fertility status among patients receiving chemotherapy to be scarce. Hence, it is important to educate physicians and dedicate a protocol for assessment of fertility pre- and post-treatment with encouragement to utilize sperm banking. Disclosures No relevant conflicts of interest to declare

Discontinuation of tyrosine kinase inhibitor therapy and treatment free remission (TFR) in chronic myeloid leukemia: Successful achievement of TFR in more than two-third of patients in a real-world practice

Background Discontinuation of TKI therapy and treatment-free remission (TFR) have become new goals for chronic-phase chronic myeloid leukemia (CP-CML). The aim of this study was to estimate the TFR post discontinuation of TKI therapy at three tertiary-care centers. Patients and Methods CP-CML patients aged ≥16 years who had an attempt to discontinue TKI therapy till June 2022, were eligible. The collected data included patients’ demographics, prognostic score, type and duration of TKI therapy, response dates, relapse dates, response to re-initiation of TKI therapy, and risk factors for relapse. Results Fifty-five patients (35, 63.6% females) with a median age of 40 (range 16-74) years at diagnosis discontinued therapy. Forty-eight (87.3%) patients received imatinib as first line therapy. Twenty-nine (52.7%) patients were receiving imatinib at the time of TKI-discontinuation. Median time from diagnosis to TKI discontinuation was 86 months (IQR 60;132) and median duration of TKI therapy after achieving DMR was 66 months (IQR 47;114). After a median follow up of 34 (IQR 12;68) months, 15 (27.3%) patients relapsed. Median time to relapse was 5 months (range 2-38). Most of the relapses occurred during the first 6 months except 3 (20%) patients. All the relapsed patients achieved MMR after a median of 3 (range 2-6) months after restarting TKI therapy. None of the patients progressed to advanced-phase. Conclusion Our experience confirms that discontinuation of TKI therapy in CP-CML patients is feasible and safe in routine clinical practice, and can achieve TFR in more than two-third of carefully selected patients. Clinical Practice points: ● What is already known about this subject? Discontinuation of tyrosine kinase inhibitiors (TKI) and treatment free remission (TFR) has shown to be safe and feasible in clinical studies and can be achieved in 40% to 60% of CML patients. Less is known about the safety and feasibility of this approach in the real-world practice, particularly from limited-resource countries. ● What are the new findings? This real-world retrospective study found that discontinuation of TKI therapy and TFR is safe and feasible in routine clinical practice and can be achieved in around 72% of chronic-phase CML patients. Although not supported by statistical significance, most of the patients in this study received long TKI therapy after deep remission (all patients had achieved complete molecular response), usually more than 5 years. Majority of the patients (87.3%) received imatinib as the first line treatment and slightly more than half of patients were receiving imatinib at the time of TKI discontinuation. ● How might it impact on routine clinical practice? Our study provides further reassurance to the physicians treating CML that discontinuation of TKI therapy is safe and feasible in routine clinical practice and TFR can be achieved in more than two-third of patients who achieved deep remission and received longer TKI therapy. Generic imatinib is cheaper and a number of CML patients receiving imatinib can expect to discontinue therapy making this approach feasible and practical in many resource-constrained countries