Response to antiviral therapy in haematopoietic stem cell transplant recipients with cytomegalovirus (CMV) reactivation according to the donor CMV serological status.

Pre-emptive antiviral treatment efficiently prevents occurrence of cytomegalovirus (CMV) disease in allogeneic stem cell transplant recipients. However, successive treatment courses can be necessary. The current study was aimed at determining factors that could influence the response to antiviral treatment, in particular the donor CMV serostatus. A total of 147 consecutive CMV-seropositive recipients (R+) were included and prospectively monitored for 6 months after transplantation. Reactivation of CMV occurred in 111 patients, 61 of 78 with a CMV-positive donor (D+) and in 50 of 69 with a CMV-negative donor (D-) (p 0.45). Baseline viral loads and initial viral doubling times did not differ between D+/R+ and D-/R+. Fifteen D+/R+ and four D-/R+ had self-resolving CMV infections. A total of 92 patients received antiviral treatment and 81 (88%) had a significant decrease in CMV load under therapy. Repeated CMV episodes were observed in 67% of those and were significantly more frequent in D-/R+ than in D+/R+ (p <0001). Half-life of CMV under treatment was significantly longer in D-/R+ than in D+/R+. Treatment failure observed in eight recipients was associated with low leucocyte count at reactivation onset, and was significantly more frequent in D-/R+ (six patients) than in D+/R+ (two patients) (p <0.0001). CMV strains resistant to antivirals were found in two D-/R+. Donor CMV serostatus influenced neither CMV reactivation occurrence nor the kinetics of CMV DNA load in the early phase of CMV replication but had a significant impact on response to antiviral therapy. Virological drug-resistance remained rare.

Effect of immune modulation in relapsed peripheral T-cell lymphomas after post-allogeneic stem cell transplantation: a study by the Société Française de Greffe de Moelle et de Thérapie Cellulaire (SFGM-TC).

Peripheral T-cell lymphoma carries a poor prognosis. To document a possible graft-versus-lymphoma effect in this setting, we evaluated the impact of immunomodulation in 63 patients with peripheral T-cell lymphoma who relapsed after allogeneic transplant in 27 SFGM-TC centers. Relapse occurred after a median of 2.8 months. Patients were then treated with non-immunologic strategies (chemotherapy, radiotherapy) and/or immune modulation (donor lymphocyte infusions (DLI) and/or discontinuation of immunosuppressive therapy). Median overall survival (OS) after relapse was 6.1 months (DLI group: 23.6 months, non-DLI group: 3.6 months). Among the 14 patients who received DLI, 9 responded and 2 had stable disease. Among the remaining 49 patients, a complete response accompanied by extensive chronic GvHD was achieved in two patients after tapering of immunosuppressive drugs. Thirty patients received radio-chemotherapy, with an overall response rate of 50%. In multivariate analysis, chronic GvHD (odds ratio: 11.25 (2.68-48.21), P=0.0009) and skin relapse (odds ratio: 4.15 (1.04-16.50), P=0.043) were associated with a better response to treatment at relapse. In a time-dependent analysis, the only factor predictive of OS was the time from transplantation to relapse (hazards ratio: 0.33 (0.17-0.640), P=0.0009). This large series provides encouraging evidence of a true GvL effect in this disease.

Fecal calprotectin and α1-antitrypsin dynamics in gastrointestinal GvHD.

In a previous study, the fecal biomarkers calprotectin and α1-antitrypsin (α1-AT) at symptom onset were reported to be significantly associated with the response to steroids in gastrointestinal GvHD (GI-GvHD). The purpose of this trial was to evaluate the dynamics of the fecal biomarkers calprotectin and α1-AT throughout the course of GvHD. Patients who were refractory to steroids had initially higher biomarker levels and in the course of GvHD demonstrated a continuous increase in fecal biomarkers. In contrast, the dynamics of calprotectin and α1-AT demonstrated low and decreasing levels in cortico-sensitive GvHD. In steroid-refractory patients who received a second line of treatment, the biomarker levels at the beginning of second-line treatment did not predict the subsequent response. Nevertheless, calprotectin levels progressively decreased in subsequent responders, whereas non-responders demonstrated continuously high levels of calprotectin. α1-AT values correlated to a lesser extent with the response to second-line treatment and remained elevated in both non-responders and responders. In conclusion, calprotectin monitoring can be of use in the management of immunosuppressive treatment in GI-GvHD.

Equivalent outcomes using reduced intensity or conventional myeloablative conditioning transplantation for patients aged 35 years and over with AML.

Allogeneic hematopoietic stem cell transplantation provides the best chance of long-term survival for patients with AML, but is associated with an unpredictable risk of treatment-related mortality. From January 2000 to December 2010, we compared the outcomes for patients with AML aged 35 and over using reduced-intensity conditioning (RIC, N=60) or conventional myeloablative conditioning (MAC) regimen (N=72) transplantation. The median follow-up was 47 months (10-134). The 4-year cumulative incidence of non-relapse mortality was 21%. After adjusting for cytogenetic risk, gender donor/recipient mismatch and CD34+ cells, non-relapse mortality was significantly lower with the RIC regimen (P=0.027). The 4-year cumulative incidence of relapse was 38% and no difference was observed in the adjusted relapse rate between the two groups. The 4-year OS rate was 46%. Using both Cox regression and inverse probability-of-treatment weighted (IPTW) method, a similar OS rate was found with both regimens (adjusted hazard ratios for conventional vs reduced of 1.14 (95% CI 0.67-1.93, P=0.64) with Cox regression, and 1.14 (95% CI 0.55-2.34, P=0.73) with IPTW). Until prospective trials are completed, this study supports the use of a reduced-intensity regimen prior to transplantation for patients with AML aged 35 and over.

Reconstitution of regulatory T-cell subsets after allogeneic hematopoietic SCT.

Previous studies on regulatory T-cell (Treg) reconstitution after allogeneic hematopoietic SCT (HSCT) have suggested that, within the GVHD process, imbalance between effector T cells and Tregs may be more important than the absolute numbers of circulating Tregs. No study has analyzed naive vs memory Treg reconstitution in a longitudinal cohort with large numbers of patients. The reconstitution of total and subsets of Treg was prospectively analyzed by flow cytometry in 185 consecutive recipients at 3, 6, 12 and 24 months after allogeneic HSCT. The levels of total, naive and memory Tregs increased, mainly within the memory subset, but remained lower than healthy controls up to 2 years after transplantation. Reduced-intensity conditioning and peripheral blood (PBSC) as the source of stem cells were associated with better 3-month reconstitution. In multivariate analysis, PBSC, recipient age ⩽25 and no anti-thymoglobulin in the conditioning regimen were associated with a better Treg reconstitution. Naive Treg long-term reconstitution was mainly influenced by recipient age. Whereas prior acute GVHD impaired Treg reconstitution, Treg subsets (absolute numbers and frequencies relative to CD4(+) T-cell subsets) at 3, 6 and 12 months after HSCT were not associated with the occurrence of a later episode of chronic GVHD.

Skin ulcers related to chronic graft-versus-host disease: clinical findings and associated morbidity.

BACKGROUND: According to the National Institutes of Health classification of chronic graft-versus-host disease (cGVHD), skin ulcers after allogeneic haematopoietic stem-cell transplantation (HSCT) are recorded as having the maximal severity score but published data are scarce. OBJECTIVES: To describe skin ulcers related to cGVHD with an emphasis on clinical findings, associated morbidity, management and evolution. PATIENTS AND METHODS: A multicentre retrospective analysis was carried out of patients with a diagnosis of cGVHD skin ulcers. RESULTS: All 25 patients included in the study had sclerotic skin cGVHD and 21 had lichenoid skin lesions associated with the sclerotic skin lesions. Thirteen patients had severe cGVHD without considering the skin, because of the involvement of an extracutaneous organ by cGVHD. The median time from HSCT to the onset of ulcers was 44 months. In addition to scleroderma, initial skin lesions at the site of ulcers were bullous erosive lichen in 21 patients and bullous erosive morphoea in four patients. Fifteen patients had an inaugural oedema. Ulcers were mostly bilateral with a predilection for the lower limbs. They were frequently colonized but few infections occurred. Four patients died during a median follow-up period of 55 months. CONCLUSIONS: Chronic graft-versus-host disease skin ulcers occur in patients with sclerodermatous skin cGVHD, are associated with severe cGVHD, often start with bullous lichenoid lesions or bullous morphoea and seem to cause more morbidity than mortality, given the low rate of mortality observed in our series of patients.

Optimization of health-care organization and perceived improvement of patient comfort by switching from intra-venous BU four-times-daily infusions to a once-daily administration scheme in adult hematopoietic stem cell recipients.

Previous studies have shown an equivalent pharmacokinetic profile between four-times-daily (4QD) and once-daily (QD) administration of intra-venous (IV) BU, without increased toxicity. We assess the impact of a switch in IV BU from a 4QD to a QD schedule, in terms of health-care organization, staff working conditions, quality of care dispensed and perceived patient comfort. Clinicians, nurses and pharmacists from nine allogeneic transplantation units in five European countries were interviewed face to face. Overall perception of QD versus 4QD BU was very positive. Both administration schemes were evaluated to be equally efficaciousZ. QD BU was perceived to be safer and more convenient. Clinicians and nurses perceived that patient comfort was improved, due to fewer complications associated with repeated infusions, and avoiding night infusions associated with stress, anxiety and decreased quality of sleep. Switching from 4QD to QD BU had a significant impact on health-care organization, with a better integration in the overall management and usual timelines in the pharmacies and transplantation units. Time spent to prepare and administer BU was significantly reduced, leading to potential financial savings that merit further assessment and would be of particular interest in the current economic climate.

Disseminated cutaneous infection due to Mycobacterium chelonae following hematopoietic stem cell transplantation.

This report describes two cases of disseminated cutaneous Mycobacterium chelonae after hematopoietic stem cell transplantation (HSCT).

Matched unrelated or matched sibling donors result in comparable outcomes after non-myeloablative HSCT in patients with AML or MDS.

The impact of allelic HLA matching in patients with AML and myelodysplastic syndrome (MDS) who receive allogeneic PBSC after a reduced-intensity conditioning (RIC) regimen is unclear. From January 2000 to December 2010, 108 consecutive patients with AML (n=63) and MDS (n=45) received PBSC after RIC in our center, either from siblings (n=70) or from matched unrelated donors (MUD; 10/10 high resolution, n=38). Conditioning regimen was fludarabine based in 95% of patients and GvHD prophylaxis was mostly cyclosporine plus mycophenolate. Patient characteristics were similar between sibling and MUD for age (median 57 years), gender and disease distribution. Conditioning regimen (more anti-thymocyte globulin (ATG) in MUD), donor age (younger for MUD) and number of CD34+ cells infused (higher in MUD) were different. The median follow-up was 36 months (range 2-72). Engraftment, GvHD, TRM, relapse rate and OS at 3 years were comparable between sibling and MUD. After adjustment for age, cytogenetic risk, ATG and number of CD34+ cells infused, donor type still did not influence OS. In patients with AML or MDS, HSCT from MUD using PBSC after a RIC regimen led to similar outcomes than from Siblings.

Mucormycosis after allogeneic haematopoietic stem cell transplantation: a French Multicentre Cohort Study (2003-2008).

We conducted a nationwide retrospective study to evaluate clinical characteristics and outcome of mucormycosis among allogeneic haematopoietic stem cell transplant recipients. Twenty-nine patients were diagnosed between 2003 and 2008. Mucormycosis occurred at a median of 225 days after allogeneic haematopoietic stem cell transplant, and as a breakthrough infection in 23 cases. Twenty-six patients were receiving steroids, mainly for graft-versus-host disease treatment, while ten had experienced a prior post-transplant invasive fungal infection. Twenty-six patients received an antifungal treatment; surgery was performed in 12. Overall survival was 34% at 3 months and 17% at 1 year.

The graft-versus-leukemia effect is mainly restricted to NIH-defined chronic graft-versus-host disease after reduced intensity conditioning before allogeneic stem cell transplantation.

Incidence on relapse and nonrelapse mortality (NRM) of chronic graft-versus-host disease (GVHD), per National Institutes of Health (NIH) criteria, is not well defined after reduced-intensity conditioning (RIC) regimens. We analyzed the association of chronic GVHD with the risk of relapse and NRM using Cox models in 177 consecutive patients who underwent transplantation for hematological malignancies after RIC. The cumulative incidence of chronic GVHD at 36 months was 74% when using Seattle's criteria compared with 54% with NIH consensus. In Cox model, NRM was significantly higher in patients with late-onset, persistent and recurrent acute GVHD (hazard ratio (HR): 6, 25 and 11; P = 0.014, P<0.0001, P<0.0001, respectively). The cumulative incidence of relapse was significantly decreased in patients with chronic GVHD compared with no GVHD group using either Seattle's or NIH criteria (HR 0.43 and 0.38; P = 0.022 and 0.016, respectively), whereas the presence of late-onset, persistent and recurrent acute GVHD was not associated with a decreased rate of relapse (HR: not significant, 0.70 and 0.71; P = not significant, P = 0.73 and P = 0.54, respectively). Chronic GVHD per NIH consensus definition is associated with the graft-versus-tumor effect, whereas all forms associated with acute features beyond day 100 are associated with NRM.

Prevalence and causes of burnout amongst oncology residents: a comprehensive nationwide cross-sectional study.

BACKGROUND: Burnout syndrome occurs frequently amongst oncology healthcare workers. It has a detrimental effect on the patient-physician relationship. Little is known about the prevalence and causes of burnout amongst junior doctors in oncology. METHODS: An anonymous questionnaire was sent out to every medical or radiation oncology or haematology resident in France (n=340). It included: demographical data, burnout level (Maslach Burnout Inventory), sources of stress, sense of equity at work, sources of support, and general health questions. Validated scales were used when available. Two reminder e-mails were sent to increase the response rate. RESULTS: Questionnaires were despatched during Spring 2009. The response rate was 60% (204/340). Emotional exhaustion (EE) and Depersonalisation (DP), the major components of burnout, were reported, respectively, by 26% (n=53) and 35% (n=72) of the residents. Burnout prevalence was 44% (n=89), defined as a severely abnormal level of either EE or DP. Eighteen percent of the residents (n=36) had severely abnormal levels of both EE and DP. The burnout level was not significantly different between the three specialties, but was higher amongst residents who do not feel adequately rewarded for their work (p<0.001). Burnout was associated with a lower perception of one's general health status (p<0.001) and the desire to quit Medicine or to change specialty (p<0.001). CONCLUSION: The burnout level is high amongst oncology residents. It probably discourages vocations for oncology. Interventions are needed and could include support groups, more intense coaching by senior physicians, training programmes on 'breaking bad news' and teaching of stress management skills.

[Prognostic factors in Hodgkin and non-Hodgkin lymphomas]. / Facteurs pronostiques dans les lymphomes non hodgkiniens et les lymphomes de Hodgkin.

Hodgkin's and non-Hodgkin's lymphomas are frequent and represent a heterogenic group of haematologic diseases. Prognostic factors allow to classify patients into homogeneic risk groups, to adapt treatment proposal to disease's risk and, in some cases, to avoid over-treatment. For all lymphomas, the first step is to determine the stage of the disease in Ann Arbor's classification, using physical examination, radiological and functional imaging. However, this classification is not optimal to predict disease evolution. Specific scores corresponding to the histological subtype of the lymphoma have been determined: IPI (international prognostic index) for aggressive lymphomas, FLIPI (follicular lymphoma international prognostic index) for indolent lymphomas and IPS (international prognostic score) for advanced Hodgkin's lymphomas. Functional imaging by PET (position emission tomography) is of prognostic significance in aggressive and Hodgkin lymphomas to evaluate early response to treatment, before autografting and at the end of the treatment. Several kinds of molecular prognostic markers have been studied: circulating rates of proteins, over expression of genes, presence of specific cells in the tumour... But these factors are not yet used in clinical practice, as they have not been validated on large cohorts and their interactions with other prognostic factors and between them are not well known. Although molecular biology has made some recent progress, only classical prognostic factors (physical examination, radiological and functional imaging) are used by now.

Impact of comorbidity indexes on non-relapse mortality.

Comorbidity indexes (CI) have been reported to predict non-relapse mortality (NRM) and overall survival after allogeneic hematopoietic stem cell transplantation (HSCT) (Charlson's comorbidity index (CCI), hematopoietic cell transplantation CI (HCT-CI) and the pre-transplantation assessment of mortality (PAM) score). Which of these indexes best predict survival is unknown yet. We retrospectively studied 286 patients who underwent allogeneic HSCT. HCT-CI and PAM scores required grading according to pre-transplant pulmonary function tests (PFTs), which were lacking for some patients. We thus designed a reduced HCT-CI and an adjusted PAM, without results of PFTs. Using CCI, 25% of patients had indexes of 1 or more; median reduced HCT-CI score was 1; median adjusted PAM score was 24. The discriminative properties of the three CIs were rather low in our population. Comparison of patients and transplant characteristics between our and Seattle group's cohorts, however, revealed significant differences in more children, in more cord blood HSCT and in HSCT for Fanconi anemia in St Louis. Finally, multivariate analysis of scoring items revealed that age, matched unrelated or mismatched donor and hepatic disease were associated with NRM in our cohort. Translating use for patient's counseling or decision to proceed to transplant of these CIs will need prospective studies in a large independent cohort.