Mycosis Fungoides Patients Research Articles

Multi-Omic Data Integration Suggests Putative Microbial Drivers of Aetiopathogenesis in Mycosis Fungoides

Background: Mycosis fungoides (MF) represents the most prevalent entity of cutaneous T cell lymphoma (CTCL). The MF aetiopathogenesis is incompletely understood, due to significant transcriptomic heterogeneity and conflicting views on whether oncologic transformation originates in early thymocytes or mature effector memory T cells. Recently, using clinical specimens, our group showed that the skin microbiome aggravates disease course, mainly driven by an outgrowing, pathogenic S. aureus strain carrying the virulence factor spa, which was shown by others to activate the T cell signalling pathway NF-κB. Methods: To explore the role of the skin microbiome in MF aetiopathogenesis, we here performed RNA sequencing, multi-omic data integration of the skin microbiome and skin transcriptome using Multi-Omic Factor Analysis (MOFA), virome profiling, and T cell receptor (TCR) sequencing in 10 MF patients from our previous study group. Results: We observed that inter-patient transcriptional heterogeneity may be largely attributed to differential activation of T cell signalling pathways. Notably, the MOFA model resolved the heterogenous activation pattern of T cell signalling after denoising the transcriptome from microbial influence. The MOFA model suggested that the outgrowing S. aureus strain evoked signalling by non-canonical NF-κB and IL-1B, which in turn may have fuelled the aggravated disease course. Further, the MOFA model indicated aberrant pathways of early thymopoiesis alongside enrichment of antiviral innate immunity. In line with this, viral prevalence, particularly of Epstein–Barr virus (EBV), trended higher in both lesional skin and the blood compared to nonlesional skin. Additionally, TCRs in both MF skin lesions and the blood were significantly more likely to recognize EBV peptides involved in latent infection. Conclusions: First, our findings suggest that S. aureus with its virulence factor spa fuels MF progression through non-canonical NF-κB and IL-1B signalling. Second, our data provide insights into the potential role of viruses in MF aetiology. Last, we propose a model of microbiome-driven MF aetiopathogenesis: Thymocytes undergo initial oncologic transformation, potentially caused by viruses. After maturation and skin infiltration, an outgrowing, pathogenic S. aureus strain evokes activation and maturation into effector memory T cells, resulting in aggressive disease. Further studies are warranted to verify and extend our data, which are based on computational analyses.

Mycosis fungoides - differentiation from inflammation and detection of circulating tumor cells with the EuroClonality-NGS assay.

Mycosis fungoides (MF) is a rare malignancy characterized by the presence of circulating tumor cells (CTCs) in a subgroup of patients. Reliably distinguishing MF from inflammatory skin conditions (IF) is a challenging task. This study aimed to evaluate the potential benefits of next-generation sequencing (NGS)-based T-cell receptor (TR) rearrangement repertoire analysis for detecting clonal rearrangements in MF and IF. Skin biopsies and blood samples from 33 MF patients (diagnosed according to WHO-EORTC criteria) and 10 IF patients were analyzed using TRB- and TRG-NGS. 27/33 MF patients were early-stage IA (n=19), IB (n=8), and six had advanced stages (IIB, n=5; IIIA, n=1). Analysis applying the standard abundance thresholds identified at least one clonal rearrangement in the skin DNA of 32/33 MF (97%) and 9/10 IF cases (90%). To enhance specificity, an abundance- and distribution-based approach was applied, considering only rearrangements that significantly stood out from the physiological background as clonal (MF 29/33, IF 1/10), allowing for a highly sensitive (88%) and specific (90%) discrimination between MF and IF. CTCs were detected in 11/24 (46%) early-stage and 3/5 (60%) late-stage MF patients. NGS-based TR repertoire analysis is a highly sensitive and specific method for the differential diagnosis of early-stage MF compared to IF, and for the sensitive molecular detection of CTCs.

Predicting Prognosis of Early-Stage Mycosis Fungoides with Utilization of Machine Learning.

Mycosis fungoides (MF) is the most prevalent type of cutaneous T cell lymphomas. Studies on the prognosis of MF are limited, and no research exists on the potential of artificial intelligence to predict MF prognosis. This study aimed to compare the predictive capabilities of various machine learning (ML) algorithms in predicting progression, treatment response, and relapse and to assess their predictive power against that of the Cox proportional hazards (CPH) model in patients with early-stage MF. The data of patients aged 18 years and over who were diagnosed with early-stage MF at Ankara University Faculty of Medicine Hospital from 2006 to 2024 were retrospectively reviewed. ML algorithms were utilized to predict complete response, relapse, and disease progression using patient data. Of the 185 patients, 94 (50.8%) were female, and 91 (49.2%) were male. Complete response was observed in 114 patients (61.6%), while relapse and progression occurred in 69 (37.3%) and 54 (29.2%) patients, respectively. For predicting progression, the Support Vector Machine (SVM) algorithm demonstrated the highest success rate, with an accuracy of 75%, outperforming the CPH model (C-index: 0.652 for SVM vs. 0.501 for CPH). The most successful model for predicting complete response was the Ensemble model, with an accuracy of 68.89%, surpassing the CPH model (C-index: 0.662 for the Ensemble model vs. 0.543 for CPH). For predicting relapse, the decision tree classifier showed the highest performance, with an accuracy of 78.17%, outperforming the CPH model (C-index: 0.782 for the decision tree classifier vs. 0.505 for CPH). The results suggest that ML algorithms may be useful in predicting prognosis in early-stage MF patients.

RUNX2 as a novel biomarker for early identification of patients progressing to advanced-stage mycosis fungoides.

The majority of patients with mycosis fungoides (MF) have an indolent disease course, but a substantial fraction (20-30%) of patients progress to advanced stages - usually with a grave prognosis. Early differentiation between indolent and aggressive types of MF is important for the choice of treatment regimen and monitoring of the individual patient. Good biomarkers are therefore desired. Here, we used spatial transcriptomics on skin samples at time-of-diagnosis to enable prediction of patients who later progressed to advanced stages of MF. Formalin-fixed, paraffin-embedded skin biopsies at time of diagnosis from six patients with MF who progressed to advanced stages of disease within 4 months to 12 years after diagnosis, and nine patients who remained in early-stage disease over 9 to 27 years were analyzed using the GeoMx Digital Spatial Profiler to capture spatially resolved high-plex RNA gene expression data. Five different regions of interest (the epidermis, the basal layer of epidermis, CD4+ T-cells and neighboring cells, and Pautrier's microabscesses) were profiled for further assessment. Interestingly, RUNX2, SHMT2, and MCM7 were upregulated in the enriched population of malignant T-cells in Pautrier's microabscesses in patients who later developed advanced stages of disease. Expression of RUNX2, SHMT2 and MCM7 in malignant T-cells was confirmed in a subset of patients in MF skin using scRNA-seq datasets across multiple studies and correlating with stage of disease. Taken together, we provide first evidence that RUNX2 has potential as a biomarker to identify MF patients progressing to advanced stage disease. As RUNX2 has not previously been linked to MF, our data also shows the analytical strength of combining spatial transcriptomics with scRNA-seq analysis.

Evaluation of demographic and clinical characteristics of 728 patients with mycosis fungoides and their relationship with systemic comorbidities: multicenter, registry-based (MF-TR) study from Türkiye.

Mycosis fungoides (MF) is the most common cutaneous lymphoma with a chronic disease course. MF patients may also suffer from systemic comorbidities such as cardiovascular and metabolic diseases. In this study, we aimed to evaluate the demographic and clinical features of MF patients registered in the MF-TR registry system and to examine the relationship of these features with systemic comorbidities. We collected the data from the medical files of the patients via the MF-TR registry system. Our study included 728 patients with MF, of which 396 (54.40%) were male and 332 (45.60%) were female. The most common additional systemic disease observed was hypertension, affecting 124 (17.03%) patients. This was followed by multinodular goiter in 66 (9.06%) patients, and diabetes mellitus type 2 in 61 (8.37%) patients. Twenty-two (3.02%) patients had a history of another secondary malignancy, with lung cancer being the most common type, affecting 5 (0.68%) patients. Female gender and high BMI were statistically higher in MF patients with asthma (P=0.019 and P=0.031, respectively). In patients with hypertension and hypercholesterolemia, the duration of diagnosis was significantly longer (P=0.013 and P=0.047, respectively). Dermatologists should be aware of these accompanying comorbidities in patients with MF. Multidisciplinary evaluation should be performed in the follow-up, if necessary.

A-216 Identification of subgroups of early-stage mycosis fungoides patients with increased itch and impaired quality of life

A-216 Identification of subgroups of early-stage mycosis fungoides patients with increased itch and impaired quality of life

A-215 Spatial profiling of CD8+ T cells and lymphoma cells in mycosis fungoides patient skin

A-215 Spatial profiling of CD8+ T cells and lymphoma cells in mycosis fungoides patient skin

A-236 Quality of Life in Egyptian Mycosis Fungoides Patients Attending Cutaneous Lymphoma Clinic at Ain Shams University Hospitals: A Cross-Sectional Study

A-236 Quality of Life in Egyptian Mycosis Fungoides Patients Attending Cutaneous Lymphoma Clinic at Ain Shams University Hospitals: A Cross-Sectional Study

Mycosis Fungoides and Associated Malignancies in a Dutch Nationwide Retrospective Cohort Study.

The prognosis of patients with mycosis fungoides is variable. As the current literature is scarce and shows mixed results this study investigates the incidence of other primary malignancies in mycosis fungoides patients. A retrospective, nationwide, population- based cohort study was performed with patients with mycosis fungoides between 2000 and 2020 in The Netherlands. All histopathology reports were requested from the Nationwide Network and Registry of Histo- and Cytopathology and screened for other primary malignancies. Lifelong incidence rates were used to compare the incidence of malignancies in mycosis fungoides patients and the general population. In total 1,024 patients were included with a mean follow-up of 10 years (SD 6). A total of 294 cases of other primary malignancies were found with 29% of the mycosis fungoides patients developing at least 1 other primary malignancy. Only cutaneous (odds ratio [OR] 2.54; CI 2.0-3.2) and haematological malignancies (OR 2.62; CI 2.00-3.42) had a statistically significant higher incidence than the Dutch population overall. Mycosis fungoides patients have a significantly increased risk of developing melanomas (OR 2.76; CI 2.11-3.59) and cutaneous squamous cell carcinomas mycosis fungoides (OR 2.34; CI 1.58-3.45). This study shows no association between mycosis fungoides and other solid organ tumours; however, such patients are significantly at risk of developing other haematological and cutaneous malignancies. Clinicians should be aware of this increased risk.

Deep Learning–Based Classification of Early-Stage Mycosis Fungoides and Benign Inflammatory Dermatoses on H&E-Stained Whole-Slide Images: A Retrospective, Proof-of-Concept Study

The diagnosis of early-stage mycosis fungoides (MF) is challenging due to shared clinical and histopathological features with benign inflammatory dermatoses (BIDs). Recent evidence has shown that deep learning (DL) can assist pathologists in cancer classification, but this field is largely unexplored for cutaneous lymphomas. This study evaluates DL in distinguishing early-stage MF from BIDs using a unique dataset of 924 hematoxylin and eosin-stained whole-slide images from skin biopsies, including 233 early-stage MF and 353 BID patients. All MF patients were diagnosed after clinicopathological correlation. The classification accuracy of weakly-supervised DL models was benchmarked against three expert pathologists. The highest performance on a temporal test set was at 200x magnification (0.25 μm per pixel resolution), with a mean area-under-the-curve of 0.827 ± 0.044 and a mean balanced accuracy of 76.2 ± 3.9%. This nearly matched the 77.7% mean balanced accuracy of the three expert-pathologists. Most (63.5%) attention heatmaps corresponded well with the pathologists’ region-of-interest. Considering the difficulty of the MF versus BID classification task, the results of this study show promise for future applications of weakly-supervised DL in diagnosing early-stage MF. Achieving clinical-grade performance will require larger multi-institutional datasets and improved methodologies, such as multimodal DL with incorporation of clinical data.

The skin microbiome stratifies patients with cutaneous T cell lymphoma and determines event-free survival

Mycosis fungoides (MF) is the most common entity of Cutaneous T cell lymphomas (CTCL) and is characterized by the presence of clonal malignant T cells in the skin. The role of the skin microbiome for MF development and progression are currently poorly understood. Using shotgun metagenomic profiling, real-time qPCR, and T cell receptor sequencing, we compared lesional and nonlesional skin of 20 MF patients with early and advanced MF. Additionally, we isolated Staphylococcus aureus and other bacteria from MF skin for functional profiling and to study the S. aureus virulence factor spa. We identified a subgroup of MF patients with substantial dysbiosis on MF lesions and concomitant outgrowth of S. aureus on plaque-staged lesions, while the other MF patients had a balanced microbiome on lesional skin. Dysbiosis and S. aureus outgrowth were accompanied by ectopic levels of cutaneous antimicrobial peptides (AMPs), including adaptation of the plaque-derived S. aureus strain. Furthermore, the plaque-derived S. aureus strain showed a reduced susceptibility towards antibiotics and an upregulation of the virulence factor spa, which may activate the NF-κB pathway. Remarkably, patients with dysbiosis on MF lesions had a restricted T cell receptor repertoire and significantly lower event-free survival. Our study highlights the potential for microbiome-modulating treatments targeting S. aureus to prevent MF progression.

Characterization of cells and mediators associated with pruritus in primary cutaneous T-cell lymphomas

Patients with primary cutaneous T-cell lymphoma (CTCL) often experience severe and difficult-to-treat pruritus that negatively affects their quality of life (QoL). However, the mechanisms of pruritus in CTCL, including mycosis fungoides (MF), remain largely unknown, and detailed characteristics of CTCL-associated pruritus is not fully elucidated. To characterize pruritus in CTCL, cutaneous B-cell lymphoma (CBCL), and large plaque parapsoriasis (LPP), and to identify potential itch mediators involved in the pathogenesis of pruritus in CTCL patients. Clinical data and blood samples were collected from 129 healthy subjects and 142 patients. Itch intensity, QoL impairment, psychological distress, and sleep quality were assessed using validated questionnaires and instruments. Blood levels of BDNF, CCL24, GRP, IL-31, IL-33, sST2, substance P, TSLP, tryptase and total IgE were measured using ELISA or ImmunoCAP. Pruritus was prevalent in CTCL, LPP and CBCL patients, with higher prevalence and severity observed in CTCL. In CTCL, pruritus correlated with significant impairment in QoL, sleep, psychological distress. Compared to healthy controls, elevated levels of IL-31, IL-33, substance P, total IgE, tryptase, and TSLP were found in MF patients. A comparison of MF patients with and without pruritus revealed higher levels of IL-31, substance P, GRP, and CCL24 in the former. Itch intensity positively correlated with IL-31, GRP, CCL24, and tryptase levels. Pruritus significantly burdens CTCL patients, necessitating appropriate therapeutic management. Our findings suggest that various non-histaminergic mediators such as tryptase and IL-31 could be explored as novel therapeutic targets for managing pruritus in MF patients.

Hair Shaft Abnormalities as a Dermoscopic Feature of Mycosis Fungoides: Pilot Results.

Diagnosis of persistent erythematous, scaly patches, or plaques can be complex since psoriasis (Ps), eczematous dermatitis (ED), and mycosis fungoides (MF) can be considered. Dermoscopy, which is a noninvasive diagnostic tool, is commonly used to examine blood vessels, scales, and background color; however, research on hair shaft evaluation in inflammatory dermatoses remains scarce. The aim of the study was dermoscopic evaluation of hair shafts in skin lesions localizedon thenon-scalp skin areas in patients diagnosed with MF, Ps, and ED. This was a retrospective evaluation of 55 patients diagnosed with MF, Ps, and ED. Photographic anddermoscopic documentation of these patients and detailed medical history were evaluated. A total of 21 patients with MF, 21 patients with Ps, and 13 patients with ED were evaluated. The examination revealed the presence of various abnormalities of hair shafts (e.g., numerouspili torti, singlepili torti, 8-shaped hairs, pigtail hairs, broken hairs, hair shafts rapidly tapered over long sections, hair shafts irregular in thickness, angulated hairs, branched hairs,the presence of trichorrhexis nodosa,and monilethrix-like hairs), yellow dots, and black dots. The presence ofpili tortiwas found in 80% of patients with MF, compared with 16% of patients with Ps and 8% of patients with ED (p < 0.005), with multiplepili tortifound only in MF patients (67%) (p < 0.005). Statistically significant differences also applied to hair shafts rapidly tapering over long sections and 8-shaped hairs, which occurred only in MF patients (p < 0.005 and p = 0.035, respectively). The presence of hair shaft abnormalities such as numerous pili torti, 8-shaped hairs, and hair shafts rapidly tapering over long sections is an important criterion that should be considered in the dermoscopic differentiation of the patchy/plaque mycosis fungoides and inflammatory dermatoses, such as psoriasis and eczematous dermatitis localizedon thenon-scalp skin areas.

On the Way to Curing Advanced-Stage Mycosis Fungoides/Sézary Syndrome

Advanced-stage mycosis fungoides (MF) and Sézary syndrome (SS) have poor prognosis with median survivals of less than 5 years. Although a variety of treatments are approved for MF/SS patients, durable complete remissions (CR) are rare. Advanced-stage MF or SS patients who achieved CR and maintained in CR or stage IA for more than 10 years were identified by a retrospective search of the principal investigator's database. Of 2266 patients diagnosed with MF or SS, 23 patients with advanced-stage MF/SS (6 IIB, 1 IIIB, 5 IVA1, 3 IVA2, 8 IVB) who achieved CR and maintained in CR or stage IA for ≥ 10 years were identified. As final/curative treatment, 11 patients underwent allogeneic stem cell transplantation (SCT). Most patients presented at young age, underwent SCT with reduced intensity conditioning regimen, had matched related donors, and controllable post-transplant graft versus host disease. Eleven patients were treated with TSEB as part of combined modality protocol in 2 patients and debulking therapy before allogeneic SCT in 9 patients. Five stage IIB patients achieved CR with radiotherapy. Four patients with blood involvement were treated with extracorporeal photopheresis (ECP) in combination with long-term antibiotics and immunomodulatory agents. Long-term antibiotics were given to 14 patients. TSEB followed by allogeneic SCT, radiotherapy, ECP plus long-term antibiotics and immunomodulatory agents were the most common curative/final treatments found in our patients. We are reporting the details of our long-term complete responders' treatment course in the hopes of obtaining more cure responses in the future.

The Prognostic Value of Histopathological Features in Early-Stage Mycosis Fungoides: Insights from a Retrospective-Prospective Cohort Study.

Primary cutaneous lymphomas (PCLs), especially mycosis fungoides (MF), pose significant diagnostic and therapeutic challenges. This study aims to correlate initial histological features with the disease course and survival in MF patients. A retrospective-prospective cohort study was conducted on 83 patients diagnosed with early-stage MF at the Departments of Dermatovenerology and Pathology, UHC Zagreb, from January 2003 to December 2012. The analyzed histopathological parameters included lichenoid dermal lymphocyte infiltrate, Pautrier microabscesses, and lymphocyte atypia. Patients with more than 30 guardian lymphocytes per 100 keratinocytes exhibited worse overall and progression-free survival. Furthermore, those with over 50% atypical lymphocytes demonstrated a faster progression rate. A dense lichenoid dermal infiltrate and a high count of lymphocyte "keepers" significantly increased the mortality risk within five years of diagnosis. This study did not fully confirm the hypothesis regarding the prognostic value of large Pautrier microabscesses but highlighted the importance of dense lichenoid infiltrates. The study identified new potential histopathological prognostic factors in early-stage MF, suggesting the need for larger studies to confirm these findings. The identification of such predictors could enhance the prognostic stratification and guide more tailored therapeutic approaches for MF patients.

Estimation of the tissue and serum levels of IL-35 in Mycosis fungoides: a case-control study

Mycosis fungoides (MF) is the most common primary cutaneous T-cell lymphoma (CTCL) with its etiology not yet fully understood. Interleukin (IL)-35 is an inhibitory cytokine that belongs to the IL-12 family. Elevated IL-35 in the plasma and the tumor microenvironment increases tumorigenesis and indicates poor prognosis in different types of malignancies. The objective of this study is to estimate the expression levels of IL-35 in tissue and serum of MF patients versus healthy controls. This case-control study included 35 patients with patch, plaque, and tumor MF as well as 30 healthy controls. Patients were fully assessed, and serum samples and lesional skin biopsies were taken prior to starting treatment. The IL-35 levels were measured in both serum and tissue biopsies by ELISA technique. Both tissue and serum IL-35 levels were significantly higher in MF patients than in controls (P < 0.001) and tissue IL-35 was significantly higher than serum IL-35 in MF patients (P < 0.001). Tissue IL-35 was significantly higher in female patients and patients with recurrent MF compared to male patients and those without recurrent disease (P < 0.001). Since both tissue and serum IL-35 levels are increased in MF, IL-35 is suggested to have a possible role in MF pathogenesis. IL-35 can be a useful diagnostic marker for MF. Tissue IL-35 can also be an indicator of disease recurrence.

Effectiveness of narrowband ultraviolet B monotherapy versus combination therapy with systemic agents in patients with early-stage mycosis fungoides and the association with plaque lesions.

Narrowband ultraviolet B (NB-UVB) has been recommended as first-line therapy for early-stage mycosis fungoides (MF) in international guidelines. NB-UVB can be used as monotherapy or part of a multimodality treatment regimen. There is limited evidence on the effectiveness and optimal patients of NB-UVB in combination with systemic therapies in MF. We aimed to assess the effectiveness of the combination versus NB-UVB monotherapy in early-stage MF and if plaque lesion status was related to these effects. This observational cohort study included 247 early-stage MF patients who had received NB-UVB combined with systemic therapies vs. NB-UVB monotherapy from 2009 to 2021. The primary outcome was partial or complete response. Overall response rate and median time to response were calculated. Hazard ratios (HRs) were estimated using the Cox model. In 139 plaque-stage patients, the response rate for combination therapy group was higher than that of monotherapy group (79.0%vs. 54.3%, p=0.006). The adjusted HR for combination therapy compared with NB-UVB monotherapy was 3.11 (95% CI 1.72-5.63). The combination therapy group also showed shorter time to response (4vs. 6 months, p=0.002). In 108 patch-stage patients, the response rate and time to response in two treatment groups showed no significant difference. There was therefore an observed interaction with patients' plaque lesion status for the effect size of NB-UVB combination therapy. No serious adverse events were observed. Adding systemic treatments to NB-UVB did not improve the treatment outcome of patch-stage patients, but it surpassed NB-UVB monotherapy for early-stage patients with plaques.

Lacutamab in patients with relapsed and/or refractory mycosis fungoides: Results from the TELLOMAK phase 2 trial.

7082 Background: Cutaneous T-cell lymphoma (CTCL) is a rare form of non-hodgkin’s lymphoma. The most common type of CTCL is Mycosis Fungoides (MF) accounting for 50-60% of cases, while Sezary Syndrome, the leukemic variant of MF accounts for 2-5% of cases. Extracutaneous involvement occurs mainly in lymph nodes or blood; 25% of patients (pts) are diagnosed at advanced stage with a 5-year survival of 15-25%. KIR3DL2 is a killer immunoglobulin-like receptor, expressed in 90% of SS pts, and 50% of MF pts. Lacutamab is a first-in-class monoclonal antibody designed to specifically deplete KIR3DL2-expressing cells via antibody-dependent cell-cytotoxicity and phagocytosis. Methods: TELLOMAK is an international, open-label, multi-cohort phase 2 trial (NCT03902184). MF pts who had received at least 2 prior systemic therapies were allocated to different cohorts according to KIR3DL2 expression in skin. Lacutamab 750 mg is administered as an intravenous infusion until disease progression or unacceptable toxicity. Primary endpoint was Objective Response Rate (ORR) by global response score based on the evaluation of 4 compartments: skin, blood, lymph nodes and viscera according to International Consensus criteria (Olsen 2011; sensitivity analysis vs revised Olsen 2022). Secondary endpoints included other efficacy endpoints, safety, and quality of life. Here we report data of all MF patients, and according to KIR3DL2 status. Results: At the data cutoff of October 13, 2023, recruitment was completed, with 107 pts enrolled. Median age was 62 years. Median number of previous systemic lines was 4 (range: 1-14). Median follow-up was 11.8 months (m) (95% CI 9.9-13.8). ORR was 16.8% (CI 10.9, 25.0; Olsen 2011), and 22.4% (CI 15.6, 31.2; Olsen 2022), response in skin and blood was 29.0% (CI 21.2, 38.2) and 40.0% (CI 24.6, 57.7) respectively. Median time to response was 1.0 months and median PFS 10.2m (CI 6.5, 16.8). Among the KIR3DL2 ≥1% pts (N=48), ORR was 20.8% (CI 11.7,34.3; Olsen 2011), and 29.2% (CI 18.2, 43.2; Olsen 2022), response in skin and in blood was observed in 33.3% (CI 21.7, 47.5) and 41.2% (CI 21.6, 64.0) respectively. Median time to response was 1.0 month and median PFS was 12.0 m (CI 5.6, 20.0). Median duration of response was not reached. Grade ≥ 3 Treatment-related (TR) Treatment-Emergent Adverse events (TEAEs) were observed in 4/107 (3.7%) pts, serious TR TEAEs were observed in 4/107 (3.7%) pts and 3/107 (2.8%) pts discontinued study drug due to TR TEAEs. The most common (&gt;10%) TR TEAEs were fatigue (11.2%), nausea (11.2%), asthenia (10.3%), and arthralgia (10.3%). Conclusions: The data from the heavily pre-treated MF population enrolled to the TELLOMAK study confirms promising clinical activity of lacutamab regardless of KIR3DL2 expression, with a favorable safety and tolerability profile. These data support the further development of lacutamab in an effort to bring improved treatments to patients with CTCL. Clinical trial information: NCT03902184 .

Radiation therapy in mycosis fungoides.

Radiation therapy (RT) is administered with varying intentions, sometimes even several times in the same or in different body areas, to over 50% of patients with neoplastic conditions. Numerous techniques are available to patients in the clinical evolution of mycosis fungoides (MF), and there are several indications for radiation therapy (RT). RT as a skin-directed therapy is very widely used in these patients, either alone or in conjunction with other therapies. The application of RT, a tried-and-true therapy that improves MF patients' quality of life and treatment, can be encouraged by a multidisciplinary approach and an understanding of current methods and action mechanisms.

Importance of the C-Reactive Protein to Albumin Ratio in the Diagnosis and Prognosis of Mycosis Fungoides.

The C-reactive protein to albumin ratio (CAR) lately has demonstrated as a prognostic factor and an indicator of disease activity, severity and prognosis in solid organ malignancies and inflammatory diseases. However, the effects of CAR have not been investigated in mycosis fungoides (MF) patients yet. This study aimed to determine the potential role of CAR as a diagnostic and a prognostic indicator in MF. We retrospectively investigated the electronic medical records of 97 patients with MF admitted to the Dermatology Clinic of Health Sciences University, Diskapi Yildirim Beyazit Training and Research Hospital between January 2014 and December 2020. In total, 60 patients with MF were enrolled in the study. CAR was evaluated, patient and control group. Also, the other clinicopathological factors including age, lactate dehydrogenase, stage of disease, beta-2-microglobulin levels, and sedimentation levels were evaluated. The median value of CAR was 0.85 (0.10-7.51) in the patient group, whereas it was 0.39 (0.0-1.11) in the control group (P < 0.001). Patients with disease progression (N = 16, 13M, 3 F) had a median value of CAR 0.84 (0.10-7.51) and the median value of CAR (N = 44) was 0.86 (0.12-4.57) in the group of patients with stable disease. The CAR value had no prognostic significance (P > 0.05). There is no association between the CAR and progression in the stage in MF patients. But the CAR is significantly higher in patients with MF than in the control group. The CAR can be a guide for us in cases where we have difficulty in diagnosing.