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Ibrutinib for First-Line Treatment of Chronic Graft-Versus-Host Disease: Results From the Randomized Phase III iNTEGRATE Study
Miklos, D. B., Abu Zaid, M., Cooney, J. P., Albring, J. C., Flowers, M., Skarbnik, A. P., Yakoub-Agha, I., Ko, B. S., Bruno, B., Waller, E. K., et al
Journal of clinical oncology : official journal of the American Society of Clinical Oncology. 2023;:Jco2200509
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Editor's Choice
Abstract
PURPOSE To present primary and final analyses from the randomized, double-blind, placebo-controlled, phase III iNTEGRATE study, which evaluated the safety and efficacy of ibrutinib with prednisone in previously untreated patients with chronic graft-versus-host disease (cGVHD). METHODS Patients (age ≥ 12 years) with newly diagnosed moderate or severe cGVHD, requiring systemic corticosteroid therapy, and with no prior systemic treatment for cGVHD were randomly assigned 1:1 to receive ibrutinib 420 mg once daily plus prednisone, starting at 1 mg/kg once daily or placebo plus prednisone. The primary end point was response rate at 48 weeks according to 2014 National Institutes of Health Consensus Development Project Criteria. Other end points included event-free survival, duration of response, time to withdrawal of immunosuppressants, improvement in Lee cGVHD Symptom Scale score, overall survival (OS), and safety. RESULTS Ninety-five and 98 patients enrolled in the ibrutinib-prednisone and placebo-prednisone arms, respectively. At 48 weeks, response rates were 41% (ibrutinib-prednisone) and 37% (placebo-prednisone; P = .54). At 33 months of follow-up, median duration of response was 19 months (ibrutinib-prednisone) and 10 months (placebo-prednisone; P = .10). Median event-free survival was 15 months (ibrutinib-prednisone) and 8 months (placebo-prednisone; hazard ratio, 0.76; 95% CI, 0.54 to 1.1; P = .11). Improvement in overall Lee cGVHD Symptom Scale was 43% (ibrutinib-prednisone) and 31% (placebo-ibrutinib; P = .07). Median OS was not reached in either arm. The 24-month Kaplan-Meier OS estimates were 80% for both arms (hazard ratio, 1.06; 95% CI, 0.59 to 1.90). Grade ≥ 3 serious adverse events occurred in 49% (ibrutinib-prednisone) and 47% (placebo-prednisone) of patients. CONCLUSION There was no statistical difference observed in the primary and secondary end points with ibrutinib-prednisone treatment. No new safety signals were observed with ibrutinib treatment in previously untreated patients with cGVHD. The primary end point of iNTEGRATE was not met.
PICO Summary
Population
Patients 12 years and older with newly diagnosed moderate or severe chronic graft-versus-host disease (cGVHD) enrolled in the iNTEGRATE trial (n=193)
Intervention
Ibrutinib 420 mg once daily plus prednisone, starting at 1 mg/kg once daily (n=95)
Comparison
placebo plus prednisone (n=98)
Outcome
At 48 weeks, response rates were 41% (ibrutinib-prednisone) and 37% (placebo-prednisone; P = .54). At 33 months of follow-up, median duration of response was 19 months (ibrutinib-prednisone) and 10 months (placebo-prednisone). Median event-free survival was 15 months (ibrutinib-prednisone) and 8 months (placebo-prednisone; hazard ratio, 0.76; 95% CI, 0.54 to 1.1). Improvement in overall Lee cGVHD Symptom Scale was 43% (ibrutinib-prednisone) and 31% (placebo-ibrutinib). Median OS was not reached in either arm. The 24-month Kaplan-Meier OS estimates were 80% for both arms (hazard ratio, 1.06; 95% CI, 0.59 to 1.90). Grade ≥ 3 serious adverse events occurred in 49% (ibrutinib-prednisone) and 47% (placebo-prednisone) of patients
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Extracorporeal photopheresis as graft-versus-host disease prophylaxis: a randomized controlled trial: Prophylactic extracorporeal photopheresis to prevent graft-versus-host disease
Ali, M. M., Gedde-Dahl, T., Osnes, L. T., Perrier, F., Veierød, M. B., Tjønnfjord, G. E., Iversen, P. O.
Transplantation and cellular therapy. 2023
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Editor's Choice
Abstract
BACKGROUND Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only curative option for many patients diagnosed with hematological malignancies. A major obstacle is graft-versus-host disease (GvHD) causing significant morbidity and mortality. Extracorporeal photopheresis (ECP) is an increasingly applied GvHD treatment, partly due to its favourable safety profile. In contrast, the use of ECP in preventing GvHD is sparse, and randomized controlled trials (RCTs) are lacking. OBJECTIVE We therefore conducted a RCT to assess if ECP applied post-transplant, could prevent the development of GvHD within the first year of transplantation. STUDY DESIGN We enrolled 157 patients (18-74 years) with a hematological malignancy receiving first allo-HSCT: 76 randomized to the intervention group and 81 to the control group. ECP was initiated directly upon engraftment and was planned twice weekly for two weeks, then once weekly for four weeks. GvHD, relapse, and death were analyzed with Cox regression analysis. RESULTS During the first year, 45 patients in the intervention and 52 control patients developed GvHD (HR=0.82, 95% CI 0.55-1.22, P=0.32). There were no differences in acute or chronic GvHD or its organ distribution in this intention-to-treat RCT. A per-protocol analysis revealed a significant difference in GvHD between the intervention (per-protocol; n=39 of 76) and the control group (n=77), 46% vs 68%, respectively, (HR 0.47, 95% CI 0.27-0.80, P=0.006). Relapse occurred in 15 patients in the intervention group and in 11 patients among the controls (HR=1.38, 95% CI 0.64-3.01, P=0.42). GvHD-free relapse-free (GRFS) survival, event-free survival, overall survival and non-relapse mortality did not differ significantly between the two study groups. No significant difference in immune reconstitution between the two study groups was revealed. CONCLUSION This first intention-to-treat RCT, investigating ECP as GvHD prophylaxis in allo-HSCT for hematological malignancy does not support the use of ECP as adjunct to standard drug-based GvHD-prophylaxis. This trial was registered at www. CLINICALTRIALS gov as #NCT03204721.
PICO Summary
Population
Adults with a haematological malignancy receiving first allo-HSCT in a single centre in Norway (n=157)
Intervention
Extracorporeal photopheresis (ECP) therapy, 8 sessions over 6 weeks in addition to standard GvHD prophylaxis (n=76)
Comparison
Standard GvHD prophylaxis (n=81)
Outcome
During the first year, 45 patients in the intervention and 52 control patients developed GvHD (HR=0.82, 95% CI 0.55-1.22). There were no differences in acute or chronic GvHD or its organ distribution in this intention-to-treat RCT. A per-protocol analysis revealed a significant difference in GvHD between the intervention (per-protocol; n=39 of 76) and the control group (n=77), 46% vs 68%, respectively, (HR 0.47, 95% CI 0.27-0.80). Relapse occurred in 15 patients in the intervention group and in 11 patients among the controls (HR=1.38, 95% CI 0.64-3.01). GvHD-free relapse-free (GRFS) survival, event-free survival, overall survival and non-relapse mortality did not differ significantly between the two study groups. No significant difference in immune reconstitution between the two study groups was revealed.
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Mesenchymal stromal cells plus basiliximab, calcineurin inhibitor as treatment of steroid-resistant acute graft-versus-host disease: a multicenter, randomized, phase 3, open-label trial
Zhao, K., Lin, R., Fan, Z., Chen, X., Wang, Y., Huang, F., Xu, N., Zhang, X., Zhang, X., Xuan, L., et al
Journal of hematology & oncology. 2022;15(1):22
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Editor's Choice
Abstract
BACKGROUND Steroid-resistant (SR) acute graft-versus-host disease (aGVHD) lacks standard second-line treatment. Mesenchymal stromal cells (MSCs) have potential efficacy in SR aGVHD. We aimed to assess the efficacy and safety of MSCs combined with basiliximab and calcineurin inhibitor as second-line therapy for SR aGVHD. METHODS A randomized phase 3 trial involved 203 SR aGVHD patients at nine centers in China (September 2014-March 2019). Participants were randomized at a 1:1 ratio to receive second-line therapy with (n = 101) or without (n = 102) MSCs. The primary endpoint was the overall response (OR) at day 28. Secondary and safety endpoints included durable OR at day 56, failure-free survival, overall survival (OS), chronic GVHD (cGVHD), infection, hematological toxicity and relapse. RESULTS Of 203 patients, 198 (97.5%; mean age, 30.1 years; 40.4% women) completed the study. The OR at day 28 was higher in the MSC group than the control group (82.8% [82 patients] vs. 70.7% [70]; odds ratio, 2.00; 95% confidence interval [CI], 1.01-3.94; P = 0.043). The durable OR at day 56 was also higher in the MSC group (78.8% [78 patients] vs. 64.6% [64]; odds ratio, 2.02; 95% CI, 1.08-3.83; P = 0.027). The median failure-free survival was longer in the MSC group compared with control (11.3 months vs. 6.0 months; hazard ratio (HR) 0.68; 95% CI, 0.48-0.95, P = 0.024). The 2-year cumulative incidence of cGVHD was 39.5% (95% CI, 29.3-49.4%) and 62.7% (51.4-72.1%) in the MSC and control groups (HR 0.55, 95% CI, 0.36-0.84; P = 0.005). Within 180 days after study treatments, the most common grade 3 and 4 adverse events were infections (65 [65.7%] in the MSC group vs. 78 [78.8%] in the control group) and hematological toxicity (37 [37.4%] vs. 53 [53.5%]). The 3-year cumulative incidence of tumor relapse was 10.1% (95% CI, 5.2-17.1) and 13.5% (7.5-21.2%) in the MSC and control groups, respectively (HR 0.75, 95% CI, 0.34-1.67, P = 0.610). CONCLUSIONS MSCs plus second-line treatments increase the efficacy of SR aGVHD, decrease drug toxicity of second-line drugs and cGVHD without increasing relapse, and are well-tolerated. MSCs could be recommended as a second-line treatment option for aGVHD patients. Trial registration clinicaltrials.gov identifier: NCT02241018. Registration date: September 16, 2014, https://clinicaltrials.gov/ct2/show/NCT02241018 .
PICO Summary
Population
Patients with steroid resistant (SR) acute graft-versus-host-disease in 9 centres in China (n=203)
Intervention
Second-line GvHD therapy with mesenchymal stromal cells (n=101)
Comparison
Second-line GvHD therapy without mesenchymal stromal cells (n=102)
Outcome
Of 203 patients, 198 (97.5%; mean age, 30.1 years; 40.4% women) completed the study. The OR at day 28 was higher in the MSC group than the control group (82.8% [82 patients] vs. 70.7% [70]; odds ratio, 2.00; 95% confidence interval [CI], 1.01-3.94). The durable OR at day 56 was also higher in the MSC group (78.8% [78 patients] vs. 64.6% [64]; odds ratio, 2.02; 95% CI, 1.08-3.83). The median failure-free survival was longer in the MSC group compared with control (11.3 months vs. 6.0 months; hazard ratio (HR) 0.68; 95% CI, 0.48-0.95). The 2-year cumulative incidence of cGVHD was 39.5% (95% CI, 29.3-49.4%) and 62.7% (51.4-72.1%) in the MSC and control groups (HR 0.55, 95% CI, 0.36-0.84). Within 180 days after study treatments, the most common grade 3 and 4 adverse events were infections (65 [65.7%] in the MSC group vs. 78 [78.8%] in the control group) and hematological toxicity (37 [37.4%] vs. 53 [53.5%]). The 3-year cumulative incidence of tumor relapse was 10.1% (95% CI, 5.2-17.1) and 13.5% (7.5-21.2%) in the MSC and control groups, respectively (HR 0.75, 95% CI, 0.34-1.67).
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A phase 2a randomized clinical trial of intravenous vedolizumab for the treatment of steroid-refractory intestinal acute graft-versus-host disease
Fløisand, Y., Schroeder, M. A., Chevallier, P., Selleslag, D., Devine, S., Renteria, A. S., Mohty, M., Yakoub-Agha, I., Chen, C., Parfionovas, A., et al
Bone marrow transplantation. 2021
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Editor's Choice
Abstract
Steroid-refractory (SR) acute graft-versus-host disease (aGvHD) remains a significant complication after allogeneic hematopoietic cell transplantation. Systemic corticosteroids are first-line therapy for aGvHD, but apart from ruxolitinib, there are no approved treatments for SR aGvHD. Vedolizumab is approved for treatment of ulcerative colitis and Crohn's disease, and may be effective for treatment of SR intestinal aGvHD. We conducted a phase 2a trial (NCT02993783) to evaluate the clinical efficacy, tolerability, and safety of vedolizumab 300 and 600?mg for SR intestinal aGvHD. This study was terminated before full enrollment was completed because early results failed to demonstrate positive proof-of-concept in efficacy. Before termination, 17 participants had enrolled and an early response in intestinal aGvHD was observed in 11 and eight participants at days 15 and 28, respectively. All adverse events observed were consistent with those expected in a population with SR intestinal aGvHD. Overall, vedolizumab did not meet the primary efficacy endpoint (overall response at day 28), likely owing to premature study drug discontinuation, lack of efficacy, and the competing risks inherent with a population with advanced SR intestinal aGvHD. Nevertheless, this study provides valuable insights into the considerations needed when conducting studies in patients with SR intestinal aGvHD.
PICO Summary
Population
Patients with steroid-refractory (SR) intestinal acute graft-versus host disease (aGvHD, n=17)
Intervention
Vedolizumab 300mg (n=8)
Comparison
Vedolizumab 600mg (n=9)
Outcome
This study was terminated before full enrollment was completed because early results failed to demonstrate positive proof-of-concept in efficacy. Before termination, 17 participants had enrolled and an early response in intestinal aGvHD was observed in 11 and eight participants at days 15 and 28, respectively. All adverse events observed were consistent with those expected in a population with SR intestinal aGvHD.
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Randomized phase II trial of extracorporeal phototherapy and steroids vs. steroids alone for newly diagnosed acute GVHD
Mehta, R. S., Bassett, R., Rondon, G., Overman, B. J., Popat, U. R., Hosing, C. M., Rezvani, K., Qazilbash, M. H., Anderlini, P., Jones, R. B., et al
Bone marrow transplantation. 2021
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Editor's Choice
Abstract
Steroids remain the initial therapy for acute graft-vs.-host disease (AGVHD). Strategies to improve response and minimize steroid exposure are needed. We report results of a randomized, adaptive, Bayesian-designed, phase II trial of prednisone with or without extracorporeal photopheresis (ECP) as an initial therapy for patients with newly diagnosed AGVHD. The primary endpoint was success at day 56 defined as: alive, in remission, achieving AGVHD response without additional therapy, and on <1?mg/kg at day 28 and <0.5?mg/kg on day 56 of steroids. Eighty-one patients were randomized to the ECP arm (n?=?51) or steroids alone (n?=?30). Median age was 54 years (range: 17-75); 90% had grade II AGVHD and 10% had grades III and IV AGVHD, with skin (85%), upper (22%)/lower (22%) gastrointestinal, and liver (10%) involvement. The ECP arm had a higher probability of success (0.815) and exceeded the predefined threshold for determining the investigational arm promising. ECP was potentially more beneficial than steroids-alone in skin-only AGVHD (response rate: 72% vs. 57%, respectively) than for visceral-organ AGVHD (47% vs. 43%, respectively). The addition of ECP to steroids may result in higher GVHD response as initial therapy for AGVHD, especially for patients with skin-only involvement.
PICO Summary
Population
Patients with newly-diagnosed acute graft-versus-host disease (AGVHD, n=81)
Intervention
Prednisone with extracorporeal photopheresis (ECP, n=51)
Comparison
Prednisone alone (n=30)
Outcome
The ECP arm had a higher probability of success (0.815) and exceeded the predefined threshold for determining the investigational arm promising. ECP was potentially more beneficial than steroids-alone in skin-only AGVHD (response rate: 72% vs. 57%, respectively) than for visceral-organ AGVHD (47% vs. 43%, respectively).
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A multicenter prospective, randomized, placebo-controlled phase II/III trial for preemptive acute graft-versus-host disease therapy
Weissinger, E. M., Metzger, J., Schleuning, M., Schmid, C., Messinger, D., Beutel, G., Wagner-Drouet, E. M., Schetelig, J., Baurmann, H., Rank, A., et al
Leukemia. 2020
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Editor's Choice
Abstract
Acute graft-versus-host disease (aGvHD) contributes to about 50% of transplant-related mortality (non-relapse mortality) after allogeneic hematopoietic stem cell transplantation (HSCT). Here the predictive value of a urinary proteomic profile (aGvHD_MS17) was tested together with preemptive prednisolone therapy. Two-hundred and fifty-nine of 267 patients were eligible for analysis. Ninety-two patients were randomized upon aGvHD_MS17 classification factor above 0.1 to receive either prednisolone (2-2.5 mg/kg, N = 44) or placebo (N = 47; N = 1 randomization failure) for 5 days followed by tapering. The remaining 167 patients formed the observation group. The primary endpoint of the randomized trial was incidence of aGvHD grade II between randomization and day +100 post HSCT. Analysis of the short-term preemptive prednisolone therapy in the randomized patients showed no significant difference in incidence or severity of acute GvHD (HR: 1.69, 95% CI: 0.66-4.32, P = 0.27). Prednisolone as preemptive treatment did not lead to an increase in relapse (20.2% in the placebo and 14.0% in the prednisolone group (P = 0.46)). The frequency of adverse events was slightly higher in the placebo group (64.4% versus 50%, respectively). Taken together, the results of the Pre-GvHD trial demonstrated the feasibility and safety of preemptive prednisolone treatment in the randomized patients.
PICO Summary
Population
Patients undergoing allogeneic transplant, with a urinary proteomic profile (n=259). Patients with a positive aGvHD_MS17 at any visit were randomised (n=92)
Intervention
Pre-emptive prednisolone 2-2.5 mg/kg BW (n=44)
Comparison
Placebo (n=48)
Outcome
The primary endpoint of the randomized trial was incidence of aGvHD grade II between randomization and day +100 post HSCT. Analysis of the short-term preemptive prednisolone therapy in the randomized patients showed no significant difference in incidence or severity of acute GvHD (HR: 1.69). Prednisolone as preemptive treatment did not lead to an increase in relapse (20.2% in the placebo and 14.0% in the prednisolone group) The frequency of adverse events was slightly higher in the placebo group (64.4% versus 50%, respectively).
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A Phase 3 randomized study of Remestemcel-L versus placebo added to second line therapy in patients with steroid refractory acute graft versus host disease
Kebriaei, P., Hayes, J., Daly, A., Uberti, J., Marks, D. I., Soiffer, R., Waller, E. K., Burke, E., Skerrett, D., Shpall, E., et al
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation. 2019
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Editor's Choice
Abstract
BACKGROUND Uncontrolled studies have suggested that bone marrow-derived mesenchymal stem cells (MSC) may be effective against acute graft-versus-host disease (aGvHD). We conducted a multicenter, randomized study to assess the efficacy of using ex vivo cultured adult human MSC (remestemcel-L) in addition to second-line therapy to treat steroid refractory aGvHD (NCT00366145). METHODS Two-hundred sixty patients, 6 months to 70 years of age, were enrolled from August 2006 to May 2009, and were randomized 2:1 to receive 8 intravenous infusions of remestemcel-L or placebo, given over 4 weeks, in addition to second-line therapy according to institutional standards. Four additional infusions over 4 weeks were indicated for patients with incomplete response at Day 28. Randomization was stratified by aGVHD grade. Efficacy and safety were assessed through 180 days of follow-up, with the primary endpoint being durable complete response (DCR), defined as complete resolution of aGvHD symptoms for any period of at least 28 days after beginning treatment. FINDINGS Remestemcel-L did not meet the primary endpoint of greater DCR in the intent-to-treat population (35% vs. 30%; p=0.42). In post-hoc analyses patients with liver involvement who received at least one infusion of remestemcel-L had a higher DCR, and higher overall complete or partial response rate (OR) than those who received placebo (29% vs. 5%; p=0.047). Furthermore, pediatric patients had a higher OR with MSC compared with placebo (64% vs. 23%; p=0.05). Similar rates of adverse events were observed between treatment groups. INTERPRETATION Remestemcel-L was safe and well-tolerated. Results of this study did not demonstrate superior DCR compared to placebo when added to standard of care. The favorable clinical responses seen in some patient subsets may warrant further investigation.
PICO Summary
Population
Patients with steroid-refractory GvHD (n=260)
Intervention
Ex vivo cultured adult human mesenchymal stromal cells (remestemcel-L), alongside second-line therapy (n=173)
Comparison
Placebo, alongside second-line therapy (n=87)
Outcome
Remestemcel-L did not meet the primary endpoint of greater durable complete response (DCR) in the intent-to-treat population (35% vs. 30%). In post-hoc analyses patients with liver involvement who received at least one infusion of remestemcel-L had a higher DCR, and higher overall complete or partial response rate (OR) than those who received placebo (29% vs. 5%). Furthermore, pediatric patients had a higher OR with MSC compared with placebo (64% vs. 23%). Similar rates of adverse events were observed between treatment groups.
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Randomized Multicenter Trial of Sirolimus vs. Prednisone as Initial Therapy for Standard Risk Acute GVHD: BMT CTN 1501
Pidala, J., Hamadani, M., Dawson, P., Martens, M., Alousi, A. M., Jagasia, M., Efebera, Y. A., Chhabra, S., Pusic, I., Holtan, S. G., et al
Blood. 2019
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Editor's Choice
Abstract
Clinical- and biomarker-based tools may identify a lower risk acute graft-versus-host disease (GVHD) population amenable to novel, reduced intensity treatments. Previous data suggest sirolimus may rival standard of care prednisone. We conducted an NHLBI/NCI-funded Blood and Marrow Transplant Clinical Trials Network (CTN) multi-center, open label, randomized phase II trial to estimate the difference in day 28 complete response (CR)/partial response (PR) rates for sirolimus vs. prednisone as initial treatment for patients with standard risk (SR) acute GVHD as defined by the Minnesota (MN) GVHD Risk Score and Ann Arbor (AA 1/2) biomarker status. A total of 127 MN-SR patients were randomized (1:1), and 122 were AA1/2 (sirolimus n=58, prednisone n=64). Others were AA3 (n=4), or AA status missing (n=1). The day 28 CR/PR rates were similar for sirolimus 64.8% (90% CI 54.1%-75.5%) vs. 73% (90% CI 63.8%-82.2%) for prednisone. The day 28 rate of CR/PR with prednisone {less than or equal to} 0.25mg/kg/day was significantly higher for sirolimus than prednisone (66.7% vs. 31.7%, p < 0.001). No differences were detected in steroid-refractory acute GVHD, disease-free survival, relapse, non-relapse mortality, or overall survival. Sirolimus was associated with reduced steroid exposure and hyperglycemia, reduced grade 2-3 infections, improvement in immune suppression discontinuation and patient-reported quality of life, and increased risk for thrombotic microangiopathy. For patients with clinical- and biomarker-based standard risk acute GVHD, sirolimus demonstrates similar overall initial treatment efficacy as prednisone. Additionally, sirolimus therapy spares steroid exposure and allied toxicity, does not compromise long-term survival outcomes, and is associated with improved patient-reported quality of life.
PICO Summary
Population
Patients with standard risk (SR) acute GVHD (n=127)
Intervention
Sirolimus initial treatment (n=58)
Comparison
Prednisone initial treatment (n=64)
Outcome
The day 28 CR/PR rates were similar for sirolimus 64.8% vs. 73% for prednisone. The day 28 rate of CR/PR with prednisone {less than or equal to} 0.25mg/kg/day was significantly higher for sirolimus than prednisone No differences were detected in steroid-refractory acute GVHD, disease-free survival, relapse, non-relapse mortality, or overall survival. Sirolimus was associated with reduced steroid exposure and hyperglycemia, reduced grade 2-3 infections, improvement in immune suppression discontinuation and patient-reported quality of life, and increased risk for thrombotic microangiopathy.