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Ruxolitinib for the treatment of acute and chronic graft-versus-host disease in children: a systematic review and individual patient data meta-analysis
Baccelli, F., Gottardi, F., Muratore, E., Leardini, D., Grasso, A. G., Gori, D., Belotti, T., Prete, A., Masetti, R.
Bone marrow transplantation. 2024
Abstract
Steroid-refractory graft-versus-host disease (SR-GvHD) represents a major complication of pediatric allogenic hematopoietic stem cell transplantation. Ruxolitinib, a selective JAK 1-2 inhibitor, showed promising results in the treatment of SR-GvHD in adult trial, including patients >12 years old. This systematic review aims to evaluate ruxolitinib use for SR-GvHD in the pediatric population. Among the 12 studies included, ruxolitinib administration presented slight differences. Overall response rate (ORR) ranged from 45% to 100% in both acute and chronic GvHD. Complete response rates (CR) varied from 9% to 67% and from 0% to 28% in aGvHD and cGvHD, respectively. Individual-patient meta-analysis from 108 children under 12 years showed an ORR and CR for aGvHD of 74% and 56%, respectively, while in cGvHD ORR was 78% but with only 11% achieving CR. Treatment-related toxicities were observed in 20% of patients, including cytopenia, liver toxicity, and infections. Age, weight, graft source, previous lines of therapy, and dose did not significantly predict response, while a higher rate of toxicities was observed in aGvHD patients. In conclusion, ruxolitinib shows promising results in the treatment of SR-GvHD in children, including those under 12 years. Specific pediatric perspective trials are currently ongoing to definitely assess its efficacy and safety.
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Advantage of First-Line Therapeutic Drug Monitoring-Driven Use of Infliximab for Treating Acute Intestinal and Liver GVHD in Children: A Prospective, Single-Center Study
Maximova, N., Nisticò, D., Riccio, G., Maestro, A., Barbi, E., Faganel Kotnik, B., Marcuzzi, A., Rimondi, E., Di Paolo, A.
Cancers. 2023;15(14)
Abstract
The high serum concentrations of TNF-α characterize acute graft-versus-host disease (aGVHD), for which infliximab treatment may be beneficial. In 28 pediatric patients, four doses of 10 mg/kg infliximab every seven days were administered after steroid failure (Standard Group, n = 14) or as a first-line therapy (Early Group, n = 14). Population pharmacokinetic analyses and evaluation of serum cytokines were performed. After two months of treatment, complete response in gastrointestinal and liver aGVHD was achieved in 43% and 100% of patients in the Standard and Early groups, respectively. During follow-up, four patients in the Standard Group (but none in the Early Group) experienced an aGVHD recurrence. Viral infections occurred more frequently in the Standard Group after the fifth dose. Infliximab clearance did not differ between groups or according to treatment outcome for each organ involved in aGVHD, whereas serum levels of cytokines significantly differed. Therefore, present findings show that use of first-line, TDM-driven infliximab to treat aGVHD in children may result in better clinical outcomes and tolerability, with a different pattern of cytokines generated according to the moment of beginning of treatment.
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Management of Chronic Graft-vs.-Host Disease in Children and Adolescents With ALL: Present Status and Model for a Personalised Management Plan
Sobkowiak-Sobierajska, A., Lindemans, C., Sykora, T., Wachowiak, J., Dalle, J. H., Bonig, H., Gennery, A., Lawitschka, A.
Frontiers in pediatrics. 2022;10:808103
Abstract
Herein we review current practice regarding the management of chronic graft-vs.-host disease (cGvHD) in paediatric patients after allogeneic haematopoietic stem cell transplantation (HSCT) for acute lymphoblastic leukaemia (ALL). Topics covered include: (i) the epidemiology of cGvHD; (ii) an overview of advances in our understanding cGvHD pathogenesis; (iii) current knowledge regarding risk factors for cGvHD and prevention strategies complemented by biomarkers; (iii) the paediatric aspects of the 2014 National Institutes for Health-defined diagnosis and grading of cGvHD; and (iv) current options for cGvHD treatment. We cover topical therapy and newly approved tyrosine kinase inhibitors, emphasising the use of immunomodulatory approaches in the context of the delicate counterbalance between immunosuppression and immune reconstitution as well as risks of relapse and infectious complications. We examine real-world approaches of response assessment and tapering schedules of treatment. Furthermore, we report on the optimal timepoints for therapeutic interventions and changes in relation to immune reconstitution and risk of relapse/infection. Additionally, we review the different options for anti-infectious prophylaxis. Finally, we put forth a theory of a holistic view of paediatric cGvHD and its associated manifestations and propose a checklist for individualised risk evaluation with aggregated considerations including site-specific cGvHD evaluation with attention to each individual's GvHD history, previous medical history, comorbidities, and personal tolerance and psychosocial circumstances. To complement this checklist, we present a treatment algorithm using representative patients to inform the personalised management plans for patients with cGvHD after HSCT for ALL who are at high risk of relapse.
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Role of extracorporeal photopheresis in the management of children with graft-vs-host disease
Asensi Cantó, P., Sanz Caballer, J., Fuentes Socorro, C., Solves Alcaína, P., Lloret Madrid, P., Solís Ruíz, J., Torres Guerola, B., de la Rubia Comos, J., Fernández Navarro, J. M., Gómez-Seguí, I.
Journal of clinical apheresis. 2022
Abstract
INTRODUCTION Graft-vs-host disease (GVHD) is a frequent cause of morbidity and mortality in allogeneic stem cell transplants. Extracorporeal photopheresis (ECP) is one of the most accepted second-line treatments, but technical issues of ECP in children might be prohibitive. MATERIALS AND METHODS Patients under 18 y of age with corticodependant or corticorefractory GVHD receiving ECP at our hospital were included in this retrospective study. ECP was performed with an in-line system (CellExTherakos) in 2013-2014 and with an off-line system (Spectra Optia) from 2015 onwards. Cumulative incidence curves were obtained to compare ECP efficacy among patients grouped by different baseline, apheresis, and disease characteristics. Significant variables on univariate analysis (Gray's test) were pooled into a multivariate analysis (Fine-Gray proportional hazard regression for competing events). RESULTS A total of 701 ECP sessions were performed on 33 patients between October 2013 and December 2021. In total, 97% of the sessions could be executed. In 8% of the sessions an incident was detected, most of them mild and related to catheter dysfunction. With a median follow-up for alive patients of 33.6 mo (range, 8-95), the composite partial and complete response cumulative incidence was 70% (95% confidence interval, 51%-82%) and the median time to maximal response was 2.8 mo (range, 0.25-9.8). Significantly lower response ratios were found in patients with hepatic, gastrointestinal, acute, or severe GVHD. The only variable that influenced response on multivariate analysis was GVHD severity. DISCUSSION ECP is feasible, safe, and effective for pediatric patients with corticorefractory or corticodependant GVHD, offering a less toxic and nonimmunosuppressive treatment option.
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Clinical Features, Treatment, and Outcome of Pediatric Steroid Refractory Acute Graft-Versus-Host Disease: A Multicenter Study
Verbeek, A. B., Jansen, S. A., von Asmuth, E. G. J., Lankester, A. C., Bresters, D., Bierings, M., Mohseny, A. B., Lindemans, C. A., Buddingh, E. P.
Transplantation and cellular therapy. 2022;28(9):600.e1-600.e9
Abstract
Steroid-refractory acute graft-versus-host disease (SR-aGvHD) is a severe complication in pediatric allogeneic hematopoietic stem cell transplantation (HSCT). We aimed to assess clinical course and outcomes of pediatric SR-aGvHD. We performed a retrospective nationwide multicenter cohort study in the Netherlands. All patients aged 0 to 18 years who underwent transplantation between 2010 and 2020 with SR-aGvHD were included. For each patient, weekly clinical aGvHD grade and stage, immunosuppressive treatment and clinical outcomes were collected. The primary study endpoint was the clinical course of SR-aGvHD over time. As a secondary outcome, factors influencing overall survival and SR-aGvHD remission were identified using a multistate Cox model. 20% of transplanted children developed grade II-IV aGvHD, of which 51% (n = 81) was SR-aGvHD. In these patients, second-line therapy was started at a median of 8 days after initial aGvHD-diagnosis. Forty-nine percent of SR-aGvHD patients received 3 or more lines of therapy. One year after start of second-line therapy, 34 patients (42%) were alive and in remission of aGvHD, 14 patients (17%) had persistent GvHD, and 33 patients (41%) had died. SR-aGvHD remission rate was lower in cord blood graft recipients than in bone marrow (BM) or peripheral blood stem cell (PBSC) recipients (hazard ratio [HR] = 0.51, 0.27-0.94, P = .031). Older age was associated with higher mortality (HR = 2.62, 1.04-6.60, P = .04, fourth quartile [aged 13.9-17.9] versus first quartile [aged 0.175-3.01]). In BM/PBSC recipients older age was also associated with lower remission rates (HR = 0.9, 0.83-0.96, P = .004). Underlying diagnosis, donor matching or choice of second-line therapy were not associated with outcome. Respiratory insufficiency caused by pulmonary GvHD was a prominent cause of death (26% of deceased). Our study demonstrates that SR-aGvHD confers a high mortality risk in pediatric HSCT. Older age and use of CB grafts are associated with an unfavorable outcome. Multicenter studies investigating novel treatment strategies to prevent pediatric SR-aGvHD and inclusion of children in ongoing trials, together with timely initiation of second-line interventions are pivotal to further reduce GvHD-related mortality.
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FDA Approval Summary: Ruxolitinib for Treatment of Chronic Graft-Versus-Host Disease after Failure of One or Two Lines of Systemic Therapy
Le, R. Q., Wang, X., Zhang, H., Li, H., Przepiorka, D., Vallejo, J., Leong, R., Ma, L., Goldberg, K. B., Pazdur, R., et al
The oncologist. 2022
Abstract
On September 22, 2021, the Food and Drug Administration approved ruxolitinib for the treatment of chronic graft-versus-host disease (cGVHD) after the failure of one or two lines of systemic therapy in adult and pediatric patients 12 years and older. Approval was based on Study INCB 18424-365 (REACH-3; CINC424D2301; NCT03112603), a randomized, open-label, multicenter trial of ruxolitinib in comparison to best available therapy (BAT) for the treatment of corticosteroid-refractory cGVHD occurring after the allogeneic hematopoietic stem cell transplantation. A total of 329 patients were randomized 1:1 to receive either ruxolitinib 10 mg twice daily (n = 165) or BAT (n = 164). BAT was selected by the investigator prior to randomization. The overall response rate through Cycle 7 Day 1 was 70% (95% CI, 63-77) in the ruxolitinib arm, and 57% (95% CI, 49-65) in the BAT arm. The median duration of response, calculated from first response to progression, death, or initiation of new systemic therapies for cGVHD, was 4.2 months (95% CI, 3.2-6.7) for the ruxolitinib arm and 2.1 months (95% CI, 1.6-3.2) for the BAT arm; and the median time from first response to death or initiation of new systemic therapies for cGVHD was 25 months (95% CI, 16.8-not estimable) for the ruxolitinib arm and 5.6 months (95% CI, 4.1-7.8) for the BAT arm. Common adverse reactions included anemia, thrombocytopenia, and infections. Given the observed response rate with durability, the clinical benefit of ruxolitinib appears to outweigh the risks of treatment for cGVHD after the failure of one or two lines of systemic therapy.
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Extracorporeal photopheresis versus alternative treatment for chronic graft-versus-host disease after haematopoietic stem cell transplantation in children and adolescents
Buder, K., Zirngibl, M., Bapistella, S., Meerpohl, J. J., Strahm, B., Bassler, D., Weitz, M.
The Cochrane database of systematic reviews. 2022;6(6):Cd009898
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Editor's Choice
Abstract
BACKGROUND Chronic graft-versus-host disease (cGvHD) is a major cause of morbidity and mortality after haematopoietic stem cell transplantation, occurring in 6% to 65% of the paediatric recipients. Currently, the therapeutic mainstay for cGvHD is treatment with corticosteroids, frequently combined with other immunosuppressive agents in people with steroid-refractory manifestations. There is no established standard treatment for steroid-refractory cGvHD. The therapeutic options for these patients include extracorporeal photopheresis (ECP), an immunomodulatory treatment that involves ex vivo collection of mononuclear cells from peripheral blood, exposure to the photoactive agent 8-methoxypsoralen, ultraviolet radiation and re-infusion of the processed cell product. The mechanisms of action of ECP are not completely understood. This is the second update of a Cochrane Review first published in 2014 and first updated in 2015. OBJECTIVES To evaluate the effectiveness and safety of ECP for the management of cGvHD in children and adolescents after haematopoietic stem cell transplantation. SEARCH METHODS We searched the Cochrane Register of Controlled Trials (CENTRAL) (2021), MEDLINE (PubMed) and Embase databases from their inception to 25 January 2021. We searched the reference lists of potentially relevant studies without any language restrictions. We searched five conference proceedings and nine clinical trial registries on 9 November 2020 and 12 November 2020, respectively. SELECTION CRITERIA We aimed to include randomised controlled trials (RCTs) comparing ECP with or without alternative treatment versus alternative treatment alone in children and adolescents with cGvHD after haematopoietic stem cell transplantation. DATA COLLECTION AND ANALYSIS Two review authors independently performed the study selection. We resolved disagreements in the selection of trials by consultation with a third review author. MAIN RESULTS We found no studies meeting the criteria for inclusion in this 2021 review update. AUTHORS' CONCLUSIONS We could not evaluate the efficacy of ECP in the treatment of cGvHD in children and adolescents after haematopoietic stem cell transplantation since the second review update again found no RCTs. Current recommendations are based on retrospective or observational studies only. Thus, ideally, ECP should be applied in the context of controlled trials only. However, performing RCTs in this population will be challenging due to the limited number of eligible participants, variable disease presentation and the lack of well-defined response criteria. International collaboration, multicentre trials and appropriate funding for such trials will be needed. If treatment decisions based on clinical data are made in favour of ECP, recipients should be carefully monitored for beneficial and harmful effects. In addition, efforts should be made to share this information with other clinicians, for example by setting up registries for children and adolescents treated with ECP.
PICO Summary
Population
Children and adolescents with chronic graft-versus-host disease (GvHD) taking part in randomised controlled trials
Intervention
Extracorporeal photopheresis (ECP) with or without alternative treatment
Comparison
Alternative treatment alone
Outcome
The authors found no studies meeting the criteria for inclusion in this systematic review.
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Extracorporeal photopheresis versus standard treatment for acute graft-versus-host disease after haematopoietic stem cell transplantation in children and adolescents
Buder, K., Zirngibl, M., Bapistella, S., Meerpohl, J. J., Strahm, B., Bassler, D., Weitz, M.
The Cochrane Database of Systematic Reviews. 2022;9(9):Cd009759
Abstract
BACKGROUND Acute graft-versus-host disease (aGvHD) is a major cause of morbidity and mortality after haematopoietic stem cell transplantation (HSCT), occurring in 8% to 85% of paediatric recipients. Currently, the therapeutic mainstay for aGvHD is treatment with corticosteroids. However, there is no established standard treatment for steroid-refractory aGvHD. Extracorporeal photopheresis (ECP) is a type of immunomodulatory method amongst different therapeutic options that involves ex vivo collection of peripheral mononuclear cells, exposure to the photoactive agent 8-methoxypsoralen and ultraviolet-A radiation, and reinfusion of these treated blood cells to the patient. The mechanisms of action of ECP are not completely understood. This is the second update of a Cochrane Review first published in 2014 and updated in 2015. OBJECTIVES To evaluate the effectiveness and safety of ECP for the management of aGvHD in children and adolescents after HSCT. SEARCH METHODS We searched the Cochrane Register of Controlled Trials (CENTRAL), MEDLINE (PubMed) and Embase (Ovid) databases from their inception to 25 January 2021. We searched the reference lists of potentially relevant studies without any language restrictions. We searched five conference proceedings and nine clinical trial registries on 9 November 2020 and 12 November 2020, respectively. SELECTION CRITERIA We sought to include randomised controlled trials (RCTs) comparing ECP with or without standard treatment versus standard treatment alone in children and adolescents with aGvHD after HSCT. DATA COLLECTION AND ANALYSIS Two review authors independently performed the study selection. We resolved disagreement in the selection of trials by consultation with a third review author. MAIN RESULTS We identified no additional studies in the 2021 review update, so there are still no studies that meet the criteria for inclusion in this review. AUTHORS' CONCLUSIONS The efficacy of ECP in the treatment of aGvHD in children and adolescents after HSCT is unknown, and its use should be restricted to within the context of RCTs. Such studies should address a comparison of ECP alone or in combination with standard treatment versus standard treatment alone. The 2021 review update brought about no additions to these conclusions.
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A Prospective, Multicenter Study of Closed System Extracorporeal Photopheresis for Children With Steroid-Refractory Acute Graft-Versus-Host Disease
Kitko, C. L., Abdel-Azim, H., Carpenter, P. A., Dalle, J. H., Diaz-de-Heredia, C., Gaspari, S., Gennery, A. R., Handgretinger, R., Lawitschka, A.
Transplantation and cellular therapy. 2022
Abstract
BACKGROUND Steroid-refractory (SR) acute graft-versus-host disease (aGvHD) therapy involves intensive immunosuppression, which is associated with significant infectious risk. Extracorporeal photopheresis (ECP) is used to treat SR-aGvHD and is considered to be more immunomodulatory than immunosuppressive. However, pediatric data are mostly retrospective and often involve multi-step ECP that includes apheresis followed by separate photosensitizing/reinfusion on another device. OBJECTIVE To prospectively evaluate the efficacy and safety of a single-device ECP system in children with SR-aGvHD. STUDY DESIGN Open-label, multicenter, phase 3 study of the THERAKOS® CELLEX® Photopheresis System in children/young adults aged 1 to 21 years with SR-aGvHD. Patients were treated 3 times per week for 4 weeks, then twice weekly through week 12 while maintaining standard aGvHD prophylaxis. The primary efficacy endpoint was the proportion of patients achieving overall response (OR) at day 28 without the addition of next-line systemic treatment. Secondary endpoints included the proportion of patients achieving OR at weeks 8 and 12; the mean weekly steroid dose at weeks 4, 8, and 12; and treatment-emergent adverse events (TEAEs). RESULTS Twenty-nine children (median age, 8 years) were enrolled. OR was 55% by day 28, 74% by week 8, and 79% by week 12. Progressive improvements were observed in the skin and the gastrointestinal tract. Mean steroid dose decreased from 1.54 mg/kg/day at baseline to 0.90 mg/kg/day at week 4; 35% of patients achieved >50% steroid dose reduction at week 4 and 75% achieved >50% steroid dose reduction at week 12. Of 168 TEAEs reported among 25 patients (86%), 28 (17%) events were infections and 14 (8%) events were considered to be probably treatment related (all nonserious). Of 627 ECP treatments administered in children/young adults, 68% required blood priming. Treatment-related AEs, including hypotension, hypocalcemia, central line infection, and catheter-site bruising, were rare (1 event each). Three deaths occurred and were deemed unrelated to ECP by the investigators. CONCLUSION Use of the THERAKOS® CELLEX® Photopheresis System was effective in children with SR-aGvHD, with more than half experiencing improvement by day 28 and further responses observed over 12 weeks. Very few TEAEs were attributable to ECP, and no new safety signals were observed.
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Ibrutinib treatment of pediatric chronic graft-versus-host disease: primary results from the phase 1/2 iMAGINE study
Carpenter, P. A., Kang, H. J., Yoo, K. H., Zecca, M., Cho, B., Lucchini, G., Nemecek, E. R., Schultz, K. R., Stepensky, P., Chaudhury, S., et al
Transplantation and cellular therapy. 2022
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Editor's Choice
Abstract
BACKGROUND Chronic graft-vs-host disease (cGVHD) is a potentially life-threatening complication of allogeneic hematopoietic stem cell transplantation. Clinical data surrounding cGVHD therapies in younger children is limited and critically needed. OBJECTIVES Primary endpoints were to determine the recommended pediatric equivalent dose (RPED) and assess PK and safety. Secondary endpoints included overall response rate (ORR; complete response and partial response) per 2014 NIH criteria at 24 weeks, overall survival, and duration of response (DOR). STUDY DESIGN We present the primary results from the open-label, multicenter, international phase 1/2 iMAGINE study (PCYC-1146-IM), which evaluated pharmacokinetics (PK), safety, and efficacy of ibrutinib in patients aged ≥1 to <22 years with treatment-naive (TN) or relapsed/refractory (R/R) moderate/severe chronic graft-versus-host disease (cGVHD). Patients aged <12 years received once-daily ibrutinib starting at 120 mg/m(2) and escalating to 240 mg/m(2) (full adult dose equivalent) after 14 days if free from ibrutinib-related grade ≥3 toxicity; patients aged ≥12 years received once-daily ibrutinib 420 mg. RESULTS Fifty-nine patients (12 TN and 47 with R/R cGVHD; median age 13 years [range 1-19]) were enrolled. Plasma concentration-time profiles for ibrutinib 240 mg/m(2) (RPED) were comparable to those observed in adults with cGVHD at a dose of 420 mg/day. Safety was consistent with the known profile of ibrutinib in cGVHD. ORR by 24 weeks was 64% (38/59): 83% (10/12) for the TN subgroup and 60% (28/47) for R/R. Among 46 responders (median follow-up, 20 months [range 2-32]), 12-month DOR (95% confidence interval) for each subgroup was 60% (25-83%) in TN and 58% (35-75%) in R/R. CONCLUSIONS Responses were durable, with the rates numerically higher than previously observed with ibrutinib in adults, demonstrating that ibrutinib provides clinically meaningful activity with acceptable safety in children with moderate/severe cGVHD.
PICO Summary
Population
Children aged ≥1 to <22 years with treatment-naive (TN) or relapsed/refractory (R/R) moderate/severe chronic graft-versus-host disease (cGVHD) enrolled in the iMAGINE study (n=59)
Intervention
Children aged <12 years: once-daily ibrutinib starting at 120 mg/m(2) and escalating to 240 mg/m(2) (full adult dose equivalent) after 14 days if free from ibrutinib-related grade ≥3 toxicity; Children aged ≥12 years: once-daily ibrutinib 420 mg.
Comparison
None
Outcome
Plasma concentration-time profiles for ibrutinib 240 mg/m(2) (RPED) were comparable to those observed in adults with cGVHD at a dose of 420 mg/day. Safety was consistent with the known profile of ibrutinib in cGVHD. ORR by 24 weeks was 64% (38/59): 83% (10/12) for the TN subgroup and 60% (28/47) for R/R. Among 46 responders (median follow-up, 20 months [range 2-32]), 12-month DOR (95% confidence interval) for each subgroup was 60% (25-83%) in TN and 58% (35-75%) in R/R.