[Vaccination of allogeneic haematopoietic stem cell transplant recipients: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)]. / Mise à jour du calendrier vaccinal après allogreffe de cellules souches hématopoïétiques : recommandations de la Société francophone de greffe de moelle et de thérapie cellulaire (SFGM-TC).

During immune reconstitution following allogeneic haematopoietic stem cell transplantation (allo-HSCT), (re)vaccination of allo-HSCT recipients is recommended. Herein, we propose an update of practical recommendations regarding vaccination of allo-HSCT recipients. These recommendations, based on data from the literature, national and international guidelines and the consensus of the participants when no formally proven data are available, were elaborated during the workshop of practice harmonization organized by the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC) in Lille in September 2022.

Pooled allogeneic faecal microbiota MaaT013 for steroid-resistant gastrointestinal acute graft-versus-host disease: a single-arm, multicentre phase 2 trial.

Background: Failure of gastrointestinal acute graft-versus-host disease (GI-aGvHD) to respond to steroid therapy is associated with limited further therapeutic options. We aimed to assess the safety and efficacy of the first-in-human use of the pooled allogeneic faecal microbiota, MaaT013, for the treatment of steroid-refractory GI-aGvHD. Methods: This prospective, international, single-arm, phase 2a study reports clinical outcomes from a 24-patient cohort with grade III-IV, steroid refractory GI-aGvHD treated with the pooled allogeneic faecal microbiota MaaT013. MaaT013 involved pooling faecal matter from 3 to 8 screened donors then transplanting the pooled batches into patients to treat GI-aGVHD. The 24 patients were treated in the HERACLES study (Aug 2018 to Nov 2020) at 26 sites in Europe and an additional 52 patients were treated in a compassionate use/expanded access program (EAP) in France (July 2018 to April 2021). The primary endpoint was GI response at day 28, defined as the proportion of patients with GI-aGvHD who had a complete response (CR) or very good partial response (VGPR). GvHD grading and staging were assessed according to the revised Glucksberg criteria. Adverse events and severe adverse events were monitored for 6 months and 12 months, respectively. The HERACLES study was registered with ClinicalTrials.gov (NCT03359980). Findings: Compared with single donors, MaaT013 is characterised by higher microbial richness and reduced variability across batches. At day 28 (D28), the GI-overall response rate (ORR) was 38% in the prospective population, including 5 complete responses (CR), 2 very good partial responses (VGPR) and 2 partial responses (PR). In the EAP, the GI-ORR was 58% (17 CR, 9 VGPR and 4 PR). The 12-month overall survival (OS) was 25% in the prospective study and 38% in the EAP. Regarding safety, five infectious complications, including 3 sepsis, could not be excluded from being related to the study procedure in HERACLES. Shotgun sequencing analyses of the identified strains suggest that none were found in MaaT013. In the EAP, 18 pharmacovigilance cases were reported among 52 treated patients, including 11 bacteraemia/sepsis. In HERACLES, we observed in stools from responding patients at D28 a higher microbiota richness and increased levels of beneficial bacteria, in particular butyrate producers, along with increased levels of short-chain fatty acid and bile acids. In contrast, stools from non-responding (NR) patients displayed increased levels of pathogenic pro-inflammatory bacteria along with increased systemic inflammatory parameters. Interpretation: Overall, MaaT013 was safe in this population of highly immunocompromised patients and was associated with responses in some patients with GI-aGvHD and deserves further investigation. Funding: MaaT Pharma.

[Graft failure, poor graft function erythroblastopenia: Actualization of definitions, diagnosis and treatment: Guidelines from the SFGM-TC]. / Non-prise de greffe, dysfonctionnement du greffon et érythroblastopénie : mise à jour des définitions, outils diagnostiques et prise en charge : recommandation de la SFGM-TC.

In this article, we discuss again the definition, the risk factor and guideline to treat the graft failure, the poor graft function and erythrobalstopenia. Graft failure is a severe but rare complication after hematopoietic cell transplantation (HCT). Despite disparity in the literature, we defined this complication and discussed the factor risks and recommendation for treatment based on new studies. Poor graft function is also a more frequent complication after HCT. New studies will soon be available to prove or not the current recommendation suggested in this article based on therapeutics medicine or cellular therapy. Erythroblastopenia, is a rarer complication post HCT. Despite anticipation for a better choice of compatibility donor/recipient, some patients still suffer from this complication.

In-depth time-dependent analysis of the benefit of allo-HSCT for elderly patients with CR1 AML: a FILO study.

The benefit of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for patients with acute myeloid leukemia (AML) aged >60 years remains a matter of debate, notably when performed in first complete remission (CR1). To clarify this issue, the French Innovative Leukemia Organization (FILO) performed a 10-year real-world time-dependent analysis. The study enrolled patients between 60 and 70 years of age with AML in CR1 after intensive chemotherapy with intermediate (IR) or unfavorable (UR) risk according to the European LeukemiaNet (ELN) 2010 classification. The impact of allo-HSCT was analyzed through three models: (1) time-dependent Cox; (2) multistate for dynamic prediction; and (3) super landmark. The study enrolled 369 (73%) IR and 138 (27%) UR patients with AML, 203 of whom received an allo-HSCT. Classical multivariate analysis showed that allo-HSCT significantly improved relapse-free survival (RFS; hazard ratio [HR] [95% confidence interval (CI)], 0.47 [0.35-0.62]; P < .001) and overall survival (OS; HR [95% CI], 0.56 [0.42-0.76]; P < .001), independently of the ELN risk group. With the multistate model, the predicted 5-year probability for IR and UR patients to remain in CR1 without allo-HSCT was 8% and 1%, respectively. Dynamic predictions confirmed that patients without allo-HSCT continue to relapse over time. Finally, the super landmark model showed that allo-HSCT significantly improved RFS (HR [95% CI], 0.47 [0.36-0.62]; P < .001) and OS (HR [95% CI], 0.54 [0.40-0.72]; P < .001). allo-HSCT in CR1 is reported here as significantly improving the outcome of fit older patients with AML. Long-term RFS without allo-HSCT is very low (<10%), supporting allo-HSCT as being the best curative option for these patients.

[National patient follow-up care logbook: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)]. / Carnet national de suivi post-allogreffe de l'adulte : recommandations de la Société francophone de greffe de moelle et de thérapie cellulaire (SFGM-TC).

In an attempt to harmonize clinical practices among francophone hematopoietic stem cell transplantation centers, the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC) held its eleventh annual workshop series in September 2020 in Lille. This event brought together practitioners from across Europe. Our article discusses the updates and modifications for the 2021 version of the national patient follow-up care logbook.

[Management of patients developing acute gastro-intestinal graft-versus-host-disease: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)]. / Prise en charge de la GVH digestive aiguë : recommandations de la Société francophone de greffe de moelle et de thérapie cellulaire (SFGM-TC).

Graft-versus-host disease (GVHD) is the most common complication after allogeneic hematopoietic cell transplantation (allo-HCT) with a frequency range of 30% to 50%. GVH is the leading cause of non-relapse-related deaths and a cause early mortality. Gastro-intestinal (GI) GVH results in digestive manifestations that involve the small intestine and the colon. The patient may then have diarrhea, intestinal bleeding, abdominal pain but also clinical signs such as nausea and vomiting may lead to anorexia. GI-GVHD promotes undernutrition as well as significant losses of vitamins and trace elements. In the case of post-transplant diarrhea, differential diagnosis can include GI-GVHD, infection and drug toxicity. Although, corticosteroids w/wo calcineurin inhibitors represent the standard of care in first line treatment, there is no consensus regarding salvage therapy in case of corticoresistant GI-GVH. In addition, assessment of early nutritional status would help combating undernutrition, which is an independent risk factor for mortality in patients with GI-GVHD. In this workshop of the Fancophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC) we focused on the management of patients developing GI-GVHD following allo-HCT.

Oral acute graft versus host disease after donor lymphocyte infusions: Clinicopathological characterization in a monocenter cohort.

Donor lymphocyte infusions (DLI) are used after hematopoietic stem cell transplant (HSCT) in order to boost the graft-versus-tumor effect. The most significant toxicity is acute or chronic graft-versus-host disease (GVHD), whose clinical symptoms mirror those occurring after HSCT. By contrast, oral acute GVHD lesions have been exceptionally described post-DLI. We report on a monocenter cohort of 12 adult patients that developed oral acute GVHD after DLI. The majority was treated for acute myeloid leukemia. A total of 29 DLI treatments were applied and the median time between the last DLI and the oral mucosal lesions was 42 days. Most patients presented these oral lesions concomitant with skin lesions and none of them had exclusive oral involvement. Oral lichenoid changes were observed in 11 patients, including plaque-like lesions and/or reticulated white streaks consistent with Wickham's striae, affecting mainly the buccal mucosa and dorsal or lateral aspects of the tongue. Mucosal histopathological findings showed a patchy-to-florid lichenoid interface dermatitis for 3 biopsied patients. Eight patients also experienced salivary gland changes. The treatment of oral lesions included high- to very high-potency topical corticosteroids in the majority of patients. Oral GVHD lesions have seldom been described after DLI, and only exceptionally in an acute setting. Our results are not consistent with those reported in the literature evaluating GVHD after DLI. In fact, oral acute GVHD lesions post-DLI appeared very common and similar to the oral lichenoid reactions of chronic GVHD following HSCT. The main limitations of this work are its retrospective design and the relatively small sample size.

Pulmonary mucormycosis following autologous hematopoietic stem cell transplantation for rapidly progressive diffuse cutaneous systemic sclerosis: A case report.

RATIONALE: The use of autologous hematopoietic stem cell transplantation (AHSCT) for autoimmune diseases has become the first indication for transplant in nonmalignant disease. Mucormycosis is a rare invasive infection with increasing incidence in patients treated with AHSCT. We report the first case of pulmonary mucormycosis following AHSCT for systemic sclerosis (SSc). PATIENT CONCERNS: A 24-year-old woman with rapidly progressive diffuse cutaneous SSc presented with an acute respiratory distress syndrome 6 days after AHSCT. DIAGNOSES: The results of clinical and computed tomography scan were consistent with pulmonary mucormycosis and the diagnosis was confirmed by a positive Mucorales Polymerase Chain Reaction on a peripheral blood sample. INTERVENTIONS AND OUTCOMES: Early antifungal therapy by intravenous amphotericin B provided rapid improvement within 4 days and sustained recovery after 2 years of follow-up. LESSONS: With the progressively increasing use of AHSCT and other stem cell therapy for treatment of severe SSc and other autoimmune diseases, the potential onset of rare post-transplant fungal infections, such as mucormycosis, requires careful patient monitoring and better awareness of early initiation of adequate therapy.

[Indication of autologous stem cell transplantation in chronic inflammatory demyelinating polyneuropathy: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)]. / Indications de l'autogreffe de cellules souches hématopoïétiques dans la polyradiculonévrite inflammatoire démyélinisante chronique : recommandations de la Société francophone de greffe de moelle et de thérapie cellulaire (SFGM-TC).

Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) is a chronic autoimmune disease involving the peripheral nervous system, characterized by focal and segmental demyelination accounting for neurological deficit. CIDP diagnosis is based on several criteria and requires the presence of specific clinical symptoms and of demyelinating criteria on the electroneuromyogram (ENMG) or of additional supportive criteria (spinal fluid examination with dissociation between albumin level and cellular abnormalities, nervous abnormalities on MRI or other minor abnormalities on ENMG, demyelinating features on nerve biopsy or patient improvement under so-called first-line therapy with immunodulator treatment). After failure of two successive first line immunomodulating drug therapies (corticosteroids, immunomodulating immunoglobulins, or plasma exchange), several options can be considered as second line therapies. The efficacy of autologous hematopoietic cell transplantation (AHCT) has been shown in CIDP patients. The aim of these recommendations established by a working group of experts from the "Société française de greffe de moelle osseuse et thérapie cellulaire (SFGM-TC)", the group "maladies auto-immunes et thérapie cellulaire (MATHEC)" and the "filière de santé maladies rares neuromusculaire (FILNEMUS)" is to specify the eligibility criteria for AHCT in CIPD patients, to describe the mobilization and the conditioning regimen for the AHCT procedure, as well as the patient standardized post-transplant follow-up and the management of neurological treatment throughout the all procedure.

Quantitative PCR (qPCR) Detection of Mucorales DNA in Bronchoalveolar Lavage Fluid To Diagnose Pulmonary Mucormycosis.

Early diagnosis and treatment are essential to improving the outcome of mucormycosis. The aim of this retrospective study was to assess the contribution of quantitative PCR detection of Mucorales DNA in bronchoalveolar lavage fluids for early diagnosis of pulmonary mucormycosis. Bronchoalveolar lavage fluid samples (n = 450) from 374 patients with pneumonia and immunosuppressive conditions were analyzed using a combination of 3 quantitative PCR assays targeting the main genera involved in mucormycosis in France (Rhizomucor, Mucor/Rhizopus, and Lichtheimia). Among these 374 patients, 24 patients had at least one bronchoalveolar lavage fluid sample with a positive PCR; 23/24 patients had radiological criteria for invasive fungal infections according to consensual criteria; 10 patients had probable or proven mucormycosis, and 13 additional patients had other invasive fungal infections (4 probable aspergillosis, 1 proven fusariosis, and 8 possible invasive fungal infections). Only 2/24 patients with a positive PCR result on a bronchoalveolar lavage fluid sample had a positive Mucorales culture. PCR was also positive on serum in 17/24 patients. In most cases, a positive PCR result was first detected using sera (15/17). However, a positive PCR on bronchoalveolar lavage fluid was the earliest and/or the only biological test revealing mucormycosis in 4 patients with a final diagnosis of probable or proven mucormycosis, 3 patients with probable aspergillosis, and one patient with a possible invasive fungal infection. Mucorales PCR performed on bronchoalveolar lavage fluid could provide additional support for earlier administration of Mucorales-directed antifungal therapy, thus improving the outcome of lung mucormycosis cases.

Improved outcome for AML patients over the years 2000-2014.

Few recent studies from registries have reported an improvement in overall survival of younger patients with acute myeloid leukemia (AML). However, reasons for this improvement are not defined. We analyzed the therapeutic course and outcome of 976 patients treated by intensive chemotherapy between 2000 and 2014. The number of patients receiving allogeneic stem cell transplantation in first or second response significantly increased over time whereas autologous transplantation was progressively abandoned. In the 513 younger patients, there were no differences in first complete response, induction failure, incidence of relapse, or non-relapse mortality over time. The period of time was significantly associated with a better overall survival especially in 2010-2014. The 2010-2014 period effect was still significant in multivariate analysis and was independent of allogeneic stem cell transplantation. In the 463 older patients, there was a significant interaction between the period and leukocytosis in multivariate analysis meaning that the 2010-2014 period had only an impact in patients with white blood cell count >50 giga/L for response and overall survival. Progresses have been made in each phase of the therapeutic course of younger AML patients resulting in survival improvement. In older patients, the outcome of hyperleukocytic patients has significantly improved in 2010-2014.

Bendamustine for relapsed blastic plasmacytoid dendritic cell leukaemia.

Optimal treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN), a rare entity of dismal prognosis previously described as CD4+/CD56+ hematodermic malignancies, is not defined. We report five cases of relapsed BPDCN treated with bendamustine hydrochloride, a well-tolerated bifunctional drug acting as an alkylating and antimetabolite agent. All patients were above the age of 50 years and in advanced disease (early first relapse in two, subsequent relapse in three; multi-organ involvement in four; previous intensive chemotherapy in five; and stem cell transplantation in four). Four patients were evaluable for response. Two failed therapy, one died from tumor lysis syndrome after rapid blast clearance from blood, and one reached and maintained complete remission for 7 months. Bendamustine should be further evaluated in BPDCN. Copyright © 2015 John Wiley & Sons, Ltd.

Prognostic impact of viral reactivations in acute myeloid leukemia patients undergoing allogeneic stem cell transplantation in first complete response.

Cytomegalovirus (CMV) serological status of donor and recipient as well as CMV reactivation have been associated with a lower risk of relapse in acute myeloid leukemia (AML) patients after allogeneic stem cell transplantation (alloSCT). Since immunosuppression following transplant allows resurgence of many other viruses, we retrospectively evaluated the impact of viral reactivations on relapse and survival in a cohort of 136 AML patients undergoing alloSCT in first remission from sibling (68%) or unrelated (32%) donors. Myeloablative and reduced-intensity conditioning regimen were given to 71 and 65 patients, respectively. Including CMV reactivations, at least 1 viral reactivation was recorded in 76 patients. Viral reactivations were associated with a lower risk of relapse (adjusted HR 0.14; 95% CI 0.07-0.30; P < 0.01), better disease-free survival (aHR 0.29; 95% CI 0.16-0.54; P < 0.01) but higher non relapse mortality. This translated into a better overall survival (aHR 0.44; 95%CI 0.25-0.77; P < 0.01) in patients who experienced viral reactivation. Thus, viral reactivations, including but not limited to CMV reactivation, are associated with a better outcome particularly with regard to the risk of relapse in AML patients undergoing alloSCT. New guidelines regarding the choice of donor according to the CMV serostatus are needed.

Chemotherapy-Related Reticulate Hyperpigmentation: A Case Series and Review of the Literature.

BACKGROUND: Inherited or acquired reticulate hyperpigmentation represents a heterogeneous group of infrequent dermatological conditions. The development of reticulate hyperpigmentation has so far been rarely reported to be associated with chemotherapeutic agents, including fluorouracil, bleomycin or a combination of cytarabine and idarubicin. CASE REPORTS: We describe 5 cases of chemotherapy-related reticulate hyperpigmentation in patients treated with different chemotherapeutic regimens, in particular paclitaxel or cytarabine. The lesions were similar in all cases, with reticulate and/or linear hyperpigmented streaks, which were mainly located to the back and buttocks. Histology showed increased melanogenesis, which suggests a direct toxic effect of chemotherapy on melanocytes. Reflectance confocal microscopy was performed in 2 patients showing a similar pattern, with an increased amount of melanin in basal keratinocytes. These features have been compared with the available data through a literature review. CONCLUSION: Reticulate hyperpigmentation is an underestimated but characteristic complication of chemotherapy. Neither specific management nor discontinuation of the chemotherapeutic regimen is required.

Sorafenib plus all-trans retinoic acid for AML patients with FLT3-ITD and NPM1 mutations.

Knowledge of the molecular basis of acute myeloid leukaemia has increased considerably in the past few years, and therapies targeting specific molecular defects of this disease are intensively investigated. Patients with both NPM1 and FLT3-ITD mutations encompass 20% of cytogenetically normal AML. The multikinase and FLT3 inhibitor, sorafenib, has shown some efficacy in patients with relapsed FLT3-ITD(+) AML. In addition, it is suggested that all-trans retinoic acid (ATRA) used in combination with chemotherapy has shown to improve outcome of patients harbouring NPM1 mutations. We report here the clinical course of three patients with refractory or relapsed FLT3-ITD(+) /NPM1(+) AML who achieved significant response upon sorafenib and ATRA combination.