Incidence of graft-versus-host-disease in Germany – evidence from health care claims data (original) (raw)

Treatment Pathways and Health Outcomes of German Patients with Chronic Graft-Versus-Host Disease After Allogeneic Hematopoietic Cell Transplantation: A Retrospective Health Claims Data Analysis

Drugs - Real World Outcomes

Background Although chronic graft-versus-host-disease (cGvHD) is an important long-term complication after allogenic hematopoietic cell transplantation (allo-HCT) and is associated with increased healthcare resource utilization, real-world evidence is scarce. Objectives The aim of the study was to evaluate survival of patients with cGvHD in Germany and to analyze hospitalization and treatment patterns. Patients and Methods Based on a German claims database with 4.9 million enrollees, a retrospective longitudinal analysis covering a 6-year period between 2013 and 2018 was conducted. Patients with allo-HCT in 2014 or 2015 (index date) and no record of transplantation or documentation of GvHD 365 days prior to index were included. Patients who subsequently developed a cGVHD were compared with those who did not develop a cGVHD within 3 years after index date. cGVHD cases were identified based on documented International Classification of Diseases, Tenth Revision (ICD-10) diagnosis and treatment algorithms. Since the onset of cGvHD is defined at 100 days after allo-HCT, only those alive beyond day 100 were considered in the survival analysis. Patients who did not survive the first 100 days after allo-HCT were censored to prevent a selection bias due to early mortality within patients without GvHD. Survival rates were plotted using the Kaplan-Meier estimator. The number of hospitalizations and average lengths of stay as well as treatment patterns were descriptively examined. Results Overall, 165 cGvHD patients were identified and compared with 43 patients without cGVHD. Short-term survival rates were better for patients with cGvHD; the 6-month survival probability was 95.8% for patients with cGVHD and 83.7% for patients without cGVHD. However, long-term survival was better in patients without GvHD; The 30-month survival probability was 65.5% for patients with cGVHD and 76.7% for patients without cGVHD. While overall 90% of cGvHD patients were hospitalized at least once, the share was only half for patients without GvHD (44%). 78.2% of patients with cGVHD received corticosteroids in combination with other predefined immunosuppressants. Conclusion Findings from this study reveal a high disease burden associated with cGvHD. This underlines the high medical need for new interventional strategies to improve survival and morbidity after allo-HCT.

Clinical and Economic Burden Associated with Graft-Versus-Host Disease Following Allogeneic Hematopoietic Cell Transplantation in France

The real-world clinical and economic burden of graft-versus-host disease (GVHD) following allogeneic hematopoietic stem cell transplantation has not been comprehensively studied in France. Clinical outcomes, healthcare resource utilization and costs associated with acute GVHD (aGVHD), chronic GVHD (cGVHD), acute plus chronic GVHD (a + cGVHD) versus no GVHD were compared using French administrative claims data. After propensity score matching, 1 934, 408, and 1 268 matched pairs were retained for the aGVHD, cGVHD, and a + cGVHD cohorts, respectively. Compared with patients with no GVHD, odds of developing severe infection was greater in patients with aGVHD (odds ratio (OR): 1.7, [95% confidence interval: 1.4, 2.1]). Compared with patients with no GVHD, mortality rates were higher in patients with aGVHD (rate ratio (RR): 1.6 [1.4, 1.7]) and in patients with a + cGVHD (RR: 1.1 [1.0, 1.2]) but similar in patients with cGVHD (RR: 0.9 [0.7, 1.1]). Mean overnight hospital admission rates p...

Burden of hospitalizations and outpatient visits associated with moderate and severe acute graft-versus-host disease in Finland and Sweden: a real-world data study

Supportive Care in Cancer

Purpose The aim of this study was to describe patient characteristics and quantify hospital stays and outpatient visits (H&OV) following diagnosis with moderate-to-severe acute graft-versus-host disease (aGVHD) in Finland and Sweden. Methods A retrospective chart audit collected data from patient medical records of 3 specialized centers performing allogeneic hematopoietic stem cell transplantation (HSCT; Finland, n = 2; Sweden, n = 1). Eligible patients received allogeneic HSCT (January 1, 2016–June 30, 2017) from any donor source, were diagnosed with grade II–IV aGVHD (MAGIC or modified Glucksberg criteria) at any time from transplantation to 12 months before data collection, and were ≥ 18 years old at diagnosis. Criteria for comparing patients graded with modified Glucksberg and MAGIC severity scales were defined. Results Fifty-five patients (Finland, n = 45; Sweden, n = 10) were included. Myeloablative conditioning was the most common conditioning regimen (81.8%); immunosuppressi...

The treatment of chronic graft-versus-host disease: consensus recommendations of experts from Germany, Austria, and Switzerland

Deutsches Ärzteblatt international, 2011

Chronic graft-versus-host disease (cGVHD) is the commonest complication of allogeneic bone marrow and blood stem-cell transplantation, occurring in 50% of all cases and causing late mortality in as many as 25%. There are now about 10 000 patients with cGVHD in Germany, and their number is growing by about 500 each year. cGVHD is a chronic multisystem disease due to impaired tolerance mechanisms. It affects many organs in variable ways, impairing organ function and lowering quality of life. We present consensus recommendations on the treatment of cGVHD that were developed jointly by the German Working Group on Bone Marrow and Blood Stem-Cell Transplantation, the German and Austrian Societies of Hematology and Oncology, the Swiss Blood Stem-Cell Transplantation Group, and the German-Austrian Working Group on Pediatric Stem-Cell Transplantation. All of the recommendations are based on an evaluation of selected publications. Recommendations are given regarding the diagnostic evaluation ...

What predicts high risk acute graft-versus-host disease (GVHD) at onset?: identification of those at highest risk by a novel acute GVHD risk score

British Journal of Haematology, 2012

To define high risk acute graft-versus-host disease (GVHD) at onset, we examined the initial GVHD stage and grade of 864 patients at the University of Minnesota who received uniform therapy with prednisone 60 mg/m 2 /d. We compared the prognostic utility of the Minnesota (MN) (modified from Consensus) versus Center for International Blood and Marrow Transplant Research (CIBMTR) GVHD organ stage-derived grading systems. As neither GVHD grading system optimally predicted outcomes, a novel acute GVHD risk score was devised by combining the MN and CIBMTR systems. Using multiple regression analysis, we could dichotomize patients into high risk (HR, n=86) acute GVHD with initial grade IIIC, IIID or IVD who were less likely to respond to steroid therapy by day 28 (RR, 0.3, p<.001) and had a higher risk for transplant related mortality (RR. 2.0, p<.001) than patients with standard risk (SR, initial grade IA-IIIB, n=778) GVHD. Using this novel acute GVHD Risk Score, HR GVHD is either skin stage 4, lower gastrointestinal (GI) stage 3+, liver stage 3+, or skin stage 3 and lower GI or liver stage 2+ GVHD. Patients with HR acute GVHD have a poor prognosis, require alternative initial therapy and should be the focus of novel therapeutic trials.

Graft-versus-Host Disease Treatment: Predictors of Survival

Biology of Blood and Marrow Transplantation, 2010

on behalf of the Blood and Marrow Transplant Clinical Trials Network Acute graft-versus-host disease (aGVHD) following allogeneic hematopoietic cell transplant (HCT) is the major reason for nonrelapse mortality (NRM), and thus is a major determinant of long-term survival. Clinical trials of new aGVHD treatments are needed to identify approaches that will ultimately improve upon HCT survival. At present, it is not clear how quickly response to GVHD treatment needs to be established to reliably categorize patients at high risk for death or to promptly identify those who might benefit from alternate treatment. Therefore, we analyzed time to response from onset of aGVHD treatment in 180 patients who were enrolled on a national, randomized, phase II aGVHD treatment clinical trial whose initial treatment of GVHD consisted of high-dose steroids plus a second immunosuppressive agent. The aim of this analysis was to determine whether time to aGVHD treatment response predicts patient outcomes, especially survival. We used response at 14, 28, and 56 days from initiation of aGVHD treatment to categorize patients for NRM and survival. Multivariate analyses and specificity/sensitivity analyses identified that day 28 response (complete or partial response) best categorized patients by NRM and survival at 9 months from start of aGVHD treatment. If verified as a reliable predictor of late outcomes following other aGVHD treatment approaches, day 28 response should serve as a standard early endpoint for future trials of aGVHD therapy.

Current Practice in Diagnosis and Treatment of Acute Graft-versus-Host Disease: Results from a Survey among German-Austrian-Swiss Hematopoietic Stem Cell Transplant Centers

Biology of Blood and Marrow Transplantation, 2013

To assess current clinical practice in diagnosis and treatment of acute graft-versus-host disease (aGVHD), we performed a survey among German, Austrian, and Swiss allogeneic hematopoietic stem cell transplantation (allo-HSCT) centers. Thirty-four of 72 contacted centers (47%) completed both the diagnostic and therapeutic sections of the survey, representing 65% of allo-HSCT activity within the participating countries in 2011. Three pediatric centers answered as requested only the diagnostic part of the survey. In the presence of diarrhea and decreased oral intake after engraftment, only 4 centers (12%) do not perform any endoscopy before the start of immunosuppressive treatment. In case of a skin rash with the differential diagnosis of drug reaction, only 12 centers (35%) perform a skin biopsy up front, whereas 19 do so after failure of systemic steroids. In the presence of rapidly increasing cholestasis occurring without any other signs of aGVHD, 11 centers (32%) perform a liver biopsy up front and 14 only after failure of steroid treatment, whereas 9 centers do not perform a liver biopsy at all. Twenty centers (59%) use a percutaneous approach, 12 a transvenous approach, and 1 mini-laparoscopy for liver biopsies. First-line treatment of cutaneous aGVHD stage 1 consists of topical treatment alone in 17 of 31 responding centers (61%), whereas isolated cutaneous aGVHD stage III is treated with systemic steroids (prednisolone below 0.5 mg/kg/day n ¼ 2, 0.5 to 1.0 mg/kg/day n ¼ 10, above 1.0 to 2.5 mg/kg/day n ¼ 19) without or with topical agents (steroids n ¼ 10; calcineurin inhibitors n ¼ 3). In gastrointestinal manifestations of aGVHD, 9 centers (29%) add topical to systemic steroids, and 3 consider topical steroids as the only treatment for mild gastrointestinal and cutaneous aGVHD. The choice of agent for second-line treatment as well as the sequence of administration are extremely heterogeneous, most likely due to a lack of convincing data published. Most frequently used are mycophenolate mofetil (n ¼ 14) and extracorporeal photopheresis (n ¼ 10). Our survey also demonstrates that clinicians chose salvage therapies for steroid-refractory aGVHD based on their centers' own clinical experience.

Risk factors for acute graft-versus-host disease

British Journal of Haematology, 1987

Acute graft-versus-host disease (GvHD) is an important complication of bone marrow transplantation in humans. Risk factors are imprecisely defined and controversial. We analysed data from 2036 recipients of HLA-identical sibling transplants for leukaemia or aplastic anaemia to identify risk factors for GvHD. Analyses indicate that grading of GvHD can be reproducibly divided into absent or mild versus moderate to severe; 2-year actuarial probability was 54% (95% confidence interval 52-56%) for absent or mild and 46% (44-48%) for moderate to severe. Factors predictive of development of moderate to severe GvHD include donor/ recipient sex-match (female-tmale greater than others, relative risk 2.0, P<0.001). This risk was markedly

Response of 443 patients to steroids as primary therapy for acute graft-versus-host disease: Comparison of grading systems

Biology of Blood and Marrow Transplantation, 2002

Acute GVHD remains a major cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation (HSCT). In a retrospective analysis, the response of 443 HSCT patients who received prednisone, 60 mg/m 2 , for 14 days followed by an 8-week taper, as initial therapy for acute GVHD from 1990 through 1999 at a single institution was examined. Median patient age was 29.0 years (range, 0.3-60.3 years), with 40% of patients <20 years old. Patients received HSCT from 201 related (189 matched sibling/ 12 partially matched) and 242 unrelated (130 HLA-A, B, DRB1 matched/112 partially matched) donors. GVHD score was measured and outcomes compared using the Minnesota, Consensus, and International Bone Marrow Transplant Registry (IBMTR) grading systems. Prior to initiation of steroid therapy, severe (grades III-IV) acute GVHD was observed in 57 (13%) patients (Minnesota or Consensus grading) and in 192 (43%) patients (IBMTR grading). At day 28 of treatment, overall improvement was observed in 55% of patients, with durable (≥28 days) complete response observed in 35% and partial response observed in 20% of patients. Patients with acute lower gastrointestinal GVHD (± other organ involvement) had lower response rates. In multivariate logistic regression analysis, recipients of related donor grafts and recipients of GVHD prophylaxis other than methotrexate alone had the highest likelihood of overall response. Initial Minnesota GVHD grade or Consensus GVHD grade was not associated with significant differences in overall response, whereas patients with an initial IBMTR grade of B or C had a higher likelihood of response. Chronic GVHD developed in 42% of patients by 1 year after HSCT. The probability of survival at 1 year after initiation of steroid therapy was 53% (95% confidence interval, 48%-58%). In Cox regression analysis, factors associated with better survival included patients' youth, receipt of related or HLA-matched unrelated grafts, and administration of GVHD prophylaxis other than T-cell depletion in all 3 grading systems. Lower initial GVHD grade (I-II or A-B) led to better survival. These data suggest that steroids provide an active but inadequate therapy for acute GVHD, especially with highergrade GVHD. More effective prophylaxis and therapy for acute GVHD is needed for mismatched unrelated donor recipients and for those with severe GVHD.