Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 2.885
Filtrar
Mais filtros











Intervalo de ano de publicação
1.
Photodermatol Photoimmunol Photomed ; 40(3): e12974, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38728444

RESUMO

BACKGROUND/PURPOSE: Existing phototherapies are ineffective for treating patients with vitiligo with complete leukotrichia. We compared the efficacy of reverse perilesional irradiation, during which only the lesional areas are covered, with conventional narrowband ultraviolet B (NB-UVB) home phototherapy for repigmentation of non-segmental vitiligo in patients with complete leukotrichia. METHODS: This was a 12-week, open-label, double-arm, multicenter clinical trial, with a total of 121 patients with non-segmental vitiligo who were randomly divided into two groups (both received topical tacrolimus): the conventional NB-UVB irradiation (CI) and reverse perilesional NB-UVB irradiation (RI) groups. RESULTS: A statistically significant difference in improvement from baseline was observed in the RI group compared with the findings in the CI group (-30.8% ± 11.8% vs. -25.5% ± 11.05%, respectively [p = .010]; pair-wise comparison p = .900 at week 4, p = .104 at week 8, and p = .010 at week 12). At week 12, the average percentage change from baseline of leukotrichia in the irradiation area significantly decreased from 100% to 82.2% ± 13.65% in the RI group, and from 100% to 88.7% ± 9.64% in the CI group (p = .027). Adverse events were minor, including desquamation, dryness, erythema, and blisters. No severe or lasting side effects were observed during the study. CONCLUSION: RI mediated better repigmentation of vitiligo with complete leukotrichia than CI.


Assuntos
Terapia Ultravioleta , Vitiligo , Humanos , Vitiligo/terapia , Vitiligo/radioterapia , Feminino , Masculino , Adulto , Terapia Ultravioleta/métodos , Pigmentação da Pele , Pessoa de Meia-Idade , Adolescente , Tacrolimo/uso terapêutico , Tacrolimo/administração & dosagem
2.
Exp Clin Transplant ; 22(4): 270-276, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38742317

RESUMO

OBJECTIVES: Induction treatment in renal transplant is associated with better graft survival. However, intensified immunosuppression is known to cause unwanted side effects such as infection and malignancy. Furthermore, the effects of the routine use of immunosuppressants in low-risk kidney transplant recipients are still not clear. In this study, we assessed the first-year safety and efficacy of induction treatment. MATERIALS AND METHODS: We examined first living donor kidney transplant patients who were on tacrolimus based immunosuppression therapy. We formed 3 groups according to the induction status: antithymocyte globulin induction, basiliximab induction, and no induction. We collected outcome data on delayed graft function, graft loss, creatinine levels, estimated glomerular filtration rates, acute rejection episodes, hospitalization episodes, and infection episodes, including cytomegalovirus infection and bacterial infections. RESULTS: We examined a total of 126 patients (age 35 ± 12 years; 65% male). Of them, 25 received antithymocyte globulin, 52 received basiliximab, and 49 did notreceive any induction treatment. We did not observe any statistically significant difference among the 3 groups in terms of acute rejection episodes, delayed graft function, and first-year graft loss. The estimated glomerular filtration rates were similar among the groups. Overall bacterial infectious complications and cytomegalovirus infection showed similar prevalence among all groups. Hospitalization was less common in the induction-free group. CONCLUSIONS: In low-risk patients, induction-free regimens could be associated with a better safety profile without compromising graft survival. Therefore, induction treatment may be disregarded in first living donor transplant patients who receive tacrolimusbased triple immunosuppression treatment.


Assuntos
Soro Antilinfocitário , Basiliximab , Rejeição de Enxerto , Sobrevivência de Enxerto , Imunossupressores , Transplante de Rim , Doadores Vivos , Tacrolimo , Humanos , Transplante de Rim/efeitos adversos , Basiliximab/efeitos adversos , Basiliximab/uso terapêutico , Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Feminino , Masculino , Tacrolimo/efeitos adversos , Tacrolimo/uso terapêutico , Adulto , Soro Antilinfocitário/efeitos adversos , Soro Antilinfocitário/uso terapêutico , Pessoa de Meia-Idade , Resultado do Tratamento , Fatores de Tempo , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto/efeitos dos fármacos , Fatores de Risco , Estudos Retrospectivos , Função Retardada do Enxerto/imunologia , Adulto Jovem , Proteínas Recombinantes de Fusão/efeitos adversos , Proteínas Recombinantes de Fusão/uso terapêutico , Inibidores de Calcineurina/efeitos adversos , Inibidores de Calcineurina/administração & dosagem , Quimioterapia Combinada
3.
Transpl Int ; 37: 12591, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38694489

RESUMO

Tacrolimus is pivotal in pancreas transplants but poses challenges in maintaining optimal levels due to recipient differences. This study aimed to explore the utility of time spent below the therapeutic range and intrapatient variability in predicting rejection and de novo donor-specific antibody (dnDSA) development in pancreas graft recipients. This retrospective unicentric study included adult pancreas transplant recipients between January 2006 and July 2020. Recorded variables included demographics, immunosuppression details, HLA matching, biopsy results, dnDSA development, and clinical parameters. Statistical analysis included ROC curves, sensitivity, specificity, and predictive values. A total of 131 patients were included. Those with biopsy-proven acute rejection (BPAR, 12.2%) had more time (39.9% ± 24% vs. 25.72% ± 21.57%, p = 0.016) and tests (41.95% ± 13.57% vs. 29.96% ± 17.33%, p = 0.009) below therapeutic range. Specific cutoffs of 31.5% for time and 34% for tests below the therapeutic range showed a high negative predictive value for BPAR (93.98% and 93.1%, respectively). Similarly, patients with more than 34% of tests below the therapeutic range were associated with dnDSA appearance (38.9% vs. 9.4%, p = 0.012; OR 6.135, 1.346-27.78). In pancreas transplantation, maintaining optimal tacrolimus levels is crucial. Suboptimal test percentages below the therapeutic range prove valuable in identifying acute graft rejection risk.


Assuntos
Rejeição de Enxerto , Imunossupressores , Transplante de Pâncreas , Tacrolimo , Humanos , Rejeição de Enxerto/imunologia , Tacrolimo/uso terapêutico , Masculino , Estudos Retrospectivos , Feminino , Adulto , Imunossupressores/uso terapêutico , Pessoa de Meia-Idade , Isoanticorpos/sangue , Isoanticorpos/imunologia , Doadores de Tecidos , Fatores de Tempo , Biópsia , Sobrevivência de Enxerto
4.
J Int Med Res ; 52(5): 3000605241247705, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38698526

RESUMO

Nirmatrelvir/ritonavir is a novel drug combination that is authorized by the Food and Drug Administration for the treatment of coronavirus disease 2019 (COVID-19). Ritonavir is a cytochrome P450 3A inhibitor and a P-glycoprotein inhibitor that increases the plasma concentration of tacrolimus and other medications. We describe the cases of two patients treated with nirmatrelvir/ritonavir: a patient who had undergone kidney transplantation and another with a history of hematopoietic stem cell transplantation. Toxic concentrations of tacrolimus were induced in both. This case series highlights the risk associated with the concomitant administration of tacrolimus and nirmatrelvir/ritonavir.


Assuntos
Tratamento Farmacológico da COVID-19 , Interações Medicamentosas , Transplante de Rim , Ritonavir , Tacrolimo , Humanos , Ritonavir/uso terapêutico , Tacrolimo/uso terapêutico , Tacrolimo/efeitos adversos , Masculino , Pessoa de Meia-Idade , SARS-CoV-2/isolamento & purificação , Feminino , Transplante de Células-Tronco Hematopoéticas , Imunossupressores/uso terapêutico , Imunossupressores/efeitos adversos , Inibidores do Citocromo P-450 CYP3A/uso terapêutico , Combinação de Medicamentos , COVID-19/virologia , Idoso , Antivirais/uso terapêutico
5.
Sci Rep ; 14(1): 11520, 2024 05 21.
Artigo em Inglês | MEDLINE | ID: mdl-38769456

RESUMO

Therapeutic drug monitoring (TDM) is a crucial clinical practice that improves pharmacological effectiveness and prevent severe drug-related adverse events. Timely reporting and intervention of critical values during TDM are essential for patient safety. In this study, we retrospectively analyzed the laboratory data to provide an overview of the incidence, distribution pattern and biochemical correlates of critical values during TDM. A total of 19,110 samples were tested for nine drug concentrations between January 1, 2019, and December 31, 2020. Of these, 241 critical values were identified in 165 patients. The most common critical values were vancomycin trough (63.4%), followed by tacrolimus trough (16.9%) and digoxin (15.2%). The primary sources of drug critical values were the department of general intensive care unit (ICU), cardiology, and surgery ICU. At baseline or the time of critical value, significant differences were found between the vancomycin, digoxin, and tacrolimus groups in terms of blood urea nitrogen (BUN), creatinine, N-terminal Pro-B-Type Natriuretic Peptide (NT-proBNP), and lymphocyte percentage, P < 0.05. Therefore, it is important to prioritize and closely monitor drug concentrations to reduce laboratory critical values during TDM.


Assuntos
Digoxina , Monitoramento de Medicamentos , Tacrolimo , Vancomicina , Humanos , Monitoramento de Medicamentos/métodos , Estudos Retrospectivos , Masculino , Feminino , Tacrolimo/uso terapêutico , Tacrolimo/sangue , Vancomicina/sangue , Vancomicina/uso terapêutico , Vancomicina/farmacocinética , Pessoa de Meia-Idade , Idoso , Digoxina/sangue , Digoxina/uso terapêutico , Unidades de Terapia Intensiva , Adulto , Creatinina/sangue , Nitrogênio da Ureia Sanguínea , Peptídeo Natriurético Encefálico/sangue
6.
Int Immunopharmacol ; 132: 111999, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38581994

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a heterogeneous group of lung diseases with different etiologies and characterized by progressive fibrosis. This disease usually causes pulmonary structural remodeling and decreased pulmonary function. The median survival of IPF patients is 2-5 years. Predominantly accumulation of type II innate immune cells accelerates fibrosis progression by secreting multiple pro-fibrotic cytokines. Group 2 innate lymphoid cells (ILC2) and monocytes/macrophages play key roles in innate immunity and aggravate the formation of pro-fibrotic environment. As a potent immunosuppressant, tacrolimus has shown efficacy in alleviating the progression of pulmonary fibrosis. In this study, we found that tacrolimus is capable of suppressing ILC2 activation, monocyte differentiation and the interaction of these two cells. This effect further reduced activation of monocyte-derived macrophages (Mo-M), thus resulting in a decline of myofibroblast activation and collagen deposition. The combination of tacrolimus and nintedanib was more effective than either drug alone. This study will reveal the specific process of tacrolimus alleviating pulmonary fibrosis by regulating type II immunity, and explore the potential feasibility of tacrolimus combined with nintedanib in the treatment of pulmonary fibrosis. This project will provide new ideas for clinical optimization of anti-pulmonary fibrosis drug strategies.


Assuntos
Fibrose Pulmonar Idiopática , Imunossupressores , Camundongos Endogâmicos C57BL , Monócitos , Tacrolimo , Tacrolimo/uso terapêutico , Tacrolimo/farmacologia , Animais , Monócitos/efeitos dos fármacos , Monócitos/imunologia , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/imunologia , Fibrose Pulmonar Idiopática/patologia , Camundongos , Imunossupressores/uso terapêutico , Imunossupressores/farmacologia , Humanos , Linfócitos/efeitos dos fármacos , Linfócitos/imunologia , Imunidade Inata/efeitos dos fármacos , Indóis/uso terapêutico , Indóis/farmacologia , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Progressão da Doença , Pulmão/patologia , Pulmão/efeitos dos fármacos , Pulmão/imunologia , Células Cultivadas , Masculino , Citocinas/metabolismo , Miofibroblastos/efeitos dos fármacos , Diferenciação Celular/efeitos dos fármacos , Modelos Animais de Doenças
7.
Cell Transplant ; 33: 9636897241246577, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38646716

RESUMO

Calcineurin inhibitors (CNIs) are critical in preventing rejection posttransplantation but pose an increased risk of post-transplant diabetes (PTD). Recent studies show that late conversion from CNIs to belatacept, a costimulation blocker, improves HbA1c in kidney transplant recipients with PTD or de novo diabetes. This study investigates whether the observed effects on PTD stem solely from CNI withdrawal or if belatacept influences PTD independently. The study assessed the impact of tacrolimus and belatacept on insulin secretion in MIN6 cells (a beta cell line) and rat islets. Tacrolimus and belatacept were administered to the cells and islets, followed by assessments of cell viability and insulin secretion. Tacrolimus impaired insulin secretion without affecting cell viability, while belatacept showed no detrimental effects on either parameter. These findings support clinical observations of improved HbA1c upon switching from tacrolimus to belatacept. Belatacept holds promise in islet or pancreas transplantation, particularly in patients with unstable diabetes. Successful cases of islet transplantation treated with belatacept without severe hypoglycemia highlight its potential in managing PTD. Further research is needed to fully understand the metabolic changes accompanying the transition from CNIs to belatacept. Preserving insulin secretion emerges as a promising avenue for investigation in this context.


Assuntos
Abatacepte , Imunossupressores , Insulina , Tacrolimo , Tacrolimo/uso terapêutico , Tacrolimo/farmacologia , Abatacepte/uso terapêutico , Abatacepte/farmacologia , Animais , Ratos , Insulina/metabolismo , Imunossupressores/uso terapêutico , Imunossupressores/farmacologia , Humanos , Masculino , Secreção de Insulina/efeitos dos fármacos , Camundongos , Transplante das Ilhotas Pancreáticas/métodos , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Diabetes Mellitus/tratamento farmacológico , Diabetes Mellitus/metabolismo , Ilhotas Pancreáticas/efeitos dos fármacos , Ilhotas Pancreáticas/metabolismo
8.
Lasers Med Sci ; 39(1): 90, 2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38456924

RESUMO

This study aimed to investigate the effects and safety of 308 nm excimer laser (308 nm EL) and tacrolimus ointment (TO) in the treatment of facial vitiligo (FV). We searched Cochrane Library, PUBMED, EMBASE, CNKI, and WANGFANG from inception to June 1, 2023. Outcomes included overall response rate (ORR), total adverse reaction rate (TARR), recurrence rate at 3-month (RR-3) and recurrence rate at 6-month (RR-6). The outcome data were presented as odds ratios (OR) with 95% confidence intervals (CI). The risk of bias was assessed by Cochrane risk-of-bias tool and data analysis was performed by RevMan 5.4 software. This study included a total of 19 trials involving 2085 patients. When comparing 308 nm EL monotherapy with 308 nm EL plus TO, significant differences in the ORR (OR = 4.29, 95% CI [2.97, 6.19], I2 = 0%, P < 0.001), RR-3 (OR = 0.18, 95% CI [0.05, 0.69], I2 = 0%, P = 0.01), and RR-6 (OR = 0.38, 95% CI [0.14, 1.03], I2 = 39%, P = 0.06) were found between the two managements. When comparing TO monotherapy with TO plus 308 nm EL, its results showed significant differences in the ORR (OR = 4.21, 95% CI [2.90, 6.11], I2 = 0%, P < 0.001), TARR (OR = 0.42, 95% CI [0.22, 0.81], I2 = 4%, P = 0.009), and RR-3 (OR = 0.32, 95% CI [0.01, 8.03], P = 0.49) between the two modalities. The results of this study suggest that the combination of 308 nm EL and TO is more effective than either treatment alone for the treatment of FV.


Assuntos
Tacrolimo , Vitiligo , Humanos , Tacrolimo/uso terapêutico , Vitiligo/radioterapia , Lasers de Excimer/uso terapêutico , Pomadas , Terapia Combinada
9.
Clin Transplant ; 38(3): e15268, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38450751

RESUMO

INTRODUCTION: The purpose of this study was to compare early outcomes of de novo LCPT (once-daily extended-release tacrolimus) to IR TAC (twice-daily immediate-release tacrolimus) in a predominantly African American (AA) adult kidney transplant population. METHODS: This is a single center, retrospective cohort study. Patients were divided into two cohorts: IR TAC (administered between January 1, 2017, and January 31, 2019) and LCPT (administered between February 1, 2019, and May 31, 2020). Primary endpoints were changes in tacrolimus trough levels (ng/mL) and estimated glomerular filtration rate up to 12 months post-transplantation. Clinical endpoints included graft survival, delayed graft function, biopsy-proven rejection, CMV viremia, and BK. A propensity score weighted generalized linear mixed effects model was used for analysis. RESULTS: The rate of change in tacrolimus levels was significantly higher in the LCPT cohort compared to the IR TAC cohort at 14 days post-discharge (.2455 ng/mL per day vs. .1073 ng/mL, respectively; p < .001). Subsequently, the LCPT cohort had a slightly higher rate of decline (-.015 ng/mL per day vs. -.010 ng/mL with IR TAC; p = .0894) up to 12 months post-discharge. Although eGFR was similar between the two cohorts at 12 months post-transplant, the rate of increase was slower in the LCPT cohort (.1371 mL/min per day vs. .1852 mL/min per day, p = .0314). No significant differences were found in graft survival, DGF, BPAR, CMV, or BK infection. CONCLUSION: This study demonstrates that despite higher early trough levels with immediate post-transplant LCPT use, clinical outcomes are comparable to IR TAC at one-year post-transplant. Notably, LCPT use does not increase the incidence of DGF and that this formulation of CNI can be used as first line therapy post-transplant.


Assuntos
Infecções por Citomegalovirus , Transplante de Rim , Adulto , Humanos , Assistência ao Convalescente , Negro ou Afro-Americano , Alta do Paciente , Estudos Retrospectivos , Tacrolimo/uso terapêutico
10.
Ann Transplant ; 29: e942167, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38500255

RESUMO

BACKGROUND Long-term real-world outcomes data for kidney transplant recipients (KTRs) converting from immediate-release tacrolimus (IRT) to prolonged-release tacrolimus (PRT) are limited. MATERIAL AND METHODS A retrospective, non-interventional review of adult KTRs treated with PRT for ≥1 month was conducted in Germany. Data were extracted from time of transplant (2008-2014) to 2018. Primary composite endpoints (graft loss, biopsy-confirmed acute rejection, graft dysfunction) and secondary endpoints (all-cause mortality, kidney function course, and tacrolimus dose/trough levels) were analyzed for sub-cohorts: de novo PRT, early conversion from IRT (within 6 months post-transplant), and late conversion (7 months to 3 years). RESULTS Analysis included 163 patients (101 de novo, 12 early converters, and 50 late converters). The overall Kaplan-Meier estimate of freedom from efficacy failure through 5 years was 0.537, (95% confidence interval (CI) 0.455-0.612) (de novo: 0.512 [0.407-0.608]; early converters: 0.500 [0.208-0.736]; late converters: 0.594 [0.443-0.717]). The overall survival rate was 0.925 (95% CI 0.872-0.957) (de novo: 0.900 [0.823-0.945]; early converters: 0.917 [0.539-0.988]; late converters: 0.977 [0.846-0.997]). During follow-up, there was a gradual reduction in tacrolimus dose and trough levels; kidney function remained stable in all cohorts. Multivariable analysis found re-transplantation, organ donor quality, best estimated glomerular filtration rate 8-12 weeks after transplant, and treatment center (between-center differences in age, sex, donor status/quality) were significantly associated with efficacy failure. CONCLUSIONS There was no difference in long-term survival profiles between KTRs who received PRT de novo vs those who converted from IRT, with 5-year survival remaining high in both groups.


Assuntos
Transplante de Rim , Tacrolimo , Adulto , Humanos , Tacrolimo/uso terapêutico , Imunossupressores/uso terapêutico , Estudos Retrospectivos , Análise de Dados , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto
11.
Cytotherapy ; 26(5): 472-481, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38456854

RESUMO

BACKGROUND AIMS: Tacrolimus (TAC) plus short-term methotrexate (stMTX) is used for graft-versus-host disease (GVHD) prophylaxis after allogeneic hematopoietic stem cell transplantation (allo-HSCT). TAC blood concentrations are frequently adjusted to enhance the graft-versus-leukemia/lymphoma effect or attenuate severe GVHD. Limited information is available on the clinical impact of these adjustments and the optimal time to perform them in order to achieve good clinical outcomes. METHODS: We retrospectively analyzed 211 patients who underwent allo-HSCT at our institutes. RESULTS: Higher TAC concentrations in week 3 correlated with a significantly higher cumulative incidence of relapse (CIR) (P = 0.03) and lower nonrelapse mortality (P = 0.04). The clinical impact of high TAC concentrations in week 3 on CIR was detected in the refined disease risk index: low/intermediate (P = 0.04) and high (P < 0.01), and conditioning regimens other than cyclophosphamide/total body irradiation and busulfan/cyclophosphamide (P = 0.07). Higher TAC concentrations in week 1 correlated with a lower grade 2-4 acute GVHD rate (P = 0.01). Higher TAC concentrations in weeks 2 and 3 correlated with slightly lower (P = 0.05) and significantly lower (P = 0.02) grade 3-4 acute GVHD rates, respectively. Higher TAC concentrations in weeks 1 and 3 were beneficial for severe acute GVHD in patients with a human leukocyte antigen-matched donor (P = 0.03 and P < 0.01, respectively), not treated with anti-thymocyte globulin (P = 0.02 and P = 0.02, respectively), and receiving three stMTX doses (P = 0.03 and P = 0.02, respectively). CONCLUSIONS: The clinical impact of TAC concentrations varied according to patient characteristics, including disease malignancy, conditioning regimens, donor sources, and GVHD prophylaxis. These results suggest that TAC management needs to be based on patient profiles.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Imunossupressores , Tacrolimo , Condicionamento Pré-Transplante , Transplante Homólogo , Humanos , Transplante de Células-Tronco Hematopoéticas/métodos , Tacrolimo/uso terapêutico , Tacrolimo/sangue , Feminino , Doença Enxerto-Hospedeiro/sangue , Doença Enxerto-Hospedeiro/tratamento farmacológico , Masculino , Adulto , Pessoa de Meia-Idade , Estudos Retrospectivos , Imunossupressores/uso terapêutico , Imunossupressores/sangue , Transplante Homólogo/métodos , Adolescente , Condicionamento Pré-Transplante/métodos , Idoso , Metotrexato/uso terapêutico , Adulto Jovem
12.
Transpl Immunol ; 83: 102009, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38325525

RESUMO

BACKGROUND: Extended-release tacrolimus for prophylaxis of allograft rejection in heart transplant (HT) recipients is currently not FDA-approved. One such extended-release formulation of tacrolimus known as LCPT allows once-daily dosing and improves bioavailability compared to immediate-release (IR-) tacrolimus. We compared long-term efficacy and safety of LCPT to IR-tacrolimus applied de novo in adult OHT recipients. METHODS: 25 prospective recipients on LCPT at our center from 2017 to 2019 were matched 1:2 with historical control recipients treated with IR-tacrolimus based on age, gender, and baseline creatinine. The primary composite outcome of death, acute cellular rejection, and/or new graft dysfunction within 3 years following transplant was compared between groups using non-inferiority analysis. RESULTS: LCPT demonstrated non-inferiority to IR-tacrolimus, with a primary outcome risk reduction of 16% (90%CI, -37%, -1%, non-inferiority p = 0.002) up to 3 years following heart transplant. Up to 3-years post-transplant, 14 patients remained on once-daily LCPT and 10 patients were switched to IR-tacrolimus due to lack of insurance coverage. There were no significant differences in the rate of chronic kidney disease requiring dialysis, cytomegalovirus requiring treatment, cardiac allograft vasculopathy, and malignancy within 3 years following transplant. CONCLUSION: LCPT is non-inferior in efficacy to IR-tacrolimus in heart transplantation with a similar safety profile. Narrowly-constrained FDA labels specific to kidney transplant remain a barrier to consistent access to many immunosuppressant medications for recipients of non-kidney solid organs. We recommend the FDA consider developing facile pathways for expanding the approved label of extended-release tacrolimus formulations to heart transplant recipients.


Assuntos
Transplante de Coração , Tacrolimo , Adulto , Humanos , Tacrolimo/uso terapêutico , Imunossupressores/uso terapêutico , Diálise Renal , Rejeição de Enxerto/tratamento farmacológico , Comprimidos , Preparações de Ação Retardada
13.
Ren Fail ; 46(1): 2313863, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38345031

RESUMO

BACKGROUND: The effect of tacrolimus (TAC) on oxidative stress after kidney transplantation (KT) is unclear. This study aimed to evaluate the influence of TAC trough levels of oxidative stress status in Tunisian KT patients during the post-transplantation period (PTP). METHODS: A prospective study including 90 KT patients was performed. TAC whole-blood concentrations were measured by the microparticle enzyme immunoassay method and adjusted according to the target range. Plasma levels of oxidants (malondialdehyde (MDA) and advanced oxidation protein products (AOPP)) and antioxidants (ascorbic acid, glutathione (GSH), glutathione peroxidase (GPx), and superoxide dismutase (SOD)) were measured using spectrophotometry. The subjects were subdivided according to PTP into three groups: patients with early, intermediate, and late PT. According to the TAC level, they were subdivided into LL-TAC, NL-TAC, and HL-TAC groups. RESULTS: A decrease in MDA levels, SOD activity, and an increase in GSH levels and GPx activity were observed in patients with late PT compared to those with early and intermediate PT (p < 0.05). Patients with LL-TAC had lower MDA levels and higher GSH levels and GPx activity compared with the NL-TAC and HL-TAC groups (p < 0.05). CONCLUSION: Our results have shown that in KT patients, despite the recovery of kidney function, the TAC reduced but did not normalize oxidative stress levels in long-term therapy, and the TAC effect significantly depends on the concentration used.


Assuntos
Transplante de Rim , Tacrolimo , Humanos , Tacrolimo/uso terapêutico , Transplante de Rim/efeitos adversos , Estudos Prospectivos , Estresse Oxidativo , Antioxidantes/farmacologia , Glutationa/metabolismo , Superóxido Dismutase/metabolismo , Rim/metabolismo , Glutationa Peroxidase/metabolismo , Glutationa Peroxidase/farmacologia
14.
Clin Exp Med ; 24(1): 37, 2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38367089

RESUMO

Melanoma differentiation-associated protein 5 (MDA5) antibody positive amyopathic dermatomyositis (DM) is a rare inflammatory disease. So far, there is no official treatment guideline in MDA5 amyopathic dermatomyositis, but early and aggressive immunosuppressive combination treatment can induce a stable remission. We retrospectively analyzed a cohort of eight patients (male n = 5) that were diagnosed with MDA5-positive amyopathic DM. Patient data comprised demographics, CT-guided diagnosis of pulmonary involvement, pulmonary function testing including forced vital capacity (FVC) and diffusing capacity for carbon monoxide (DLCO) data on baseline and mean long-term follow-up of 51 months (24-92 months) to evaluate treatment strategies. Depending on severity of organ involvement treatments were individualized including cyclophosphamide, immunoglobulins and plasmapheresis. Simultaneously, oral treatment with tacrolimus was commenced in four of the eight patients. Most patients received remission maintenance therapy with a combination of tacrolimus, rituximab and low dose steroids. In all patients, improvement in FVC was recorded and five patients achieved an improvement in DLCO. An improvement in the CT imaging morphological findings was observed in four patients. Awareness for the entirety of all clinical and disease-related findings of amyopathic DM is crucial, and remission maintenance is often achieved with a combination of tacrolimus and rituximab.


Assuntos
Dermatomiosite , Doenças Pulmonares Intersticiais , Tacrolimo , Humanos , Masculino , Feminino , Estudos Retrospectivos , Tacrolimo/uso terapêutico , Rituximab , Helicase IFIH1 Induzida por Interferon , Autoanticorpos
15.
Pediatr Transplant ; 28(1): e14688, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38317344

RESUMO

OBJECTIVES: Graft-versus-host disease (GvHD) is one of the leading causes of morbidity and mortality in patients undergoing allogeneic HSCT, and effective prevention of GvHD is critical for the success of the HSCT procedure. Calcineurin inhibitors (CNI) have been used for decades as the backbone of GvHD prophylaxis. In this study, the efficacy and safety of Cyclosporine A (CsA) and tacrolimus (TCR) were compared in pediatric HSCT for thalassemia. MATERIALS AND METHODS: This is a retrospective analysis of 129 pediatric patients who underwent HSCT with the diagnosis of thalassemia at Medicalpark Göztepe and Antalya Hospitals between January 2017 and December 2020. RESULTS: Despite the GvHD prophylaxis, grade II-IV acute GvHD developed in 29 patients. Of these patients, 12 had only gut, 10 had only skin, 6 had combined gut and skin, and one had only liver GvHD. Fifteen of these 29 patients were in the CsA group, and 14 of them were in the TCR group. There was no significant difference between the groups in terms of acute GvHD occurrence, GvHD stage, or involvement sites. In terms of CNI-related toxicity, neurotoxicity in 15 (CsA n = 9, TCR n = 6) and nephrotoxicity in 18 (CsA n = 4, TCR n = 14) patients were observed. While there was no difference between the two groups in terms of neurotoxicity, more nephrotoxicity developed in patients using TCR (p = .013). There was no significant difference between the groups in terms of engraftment syndrome, veno-occlusive disease, CMV reactivation, PRES, or graft rejection. CONCLUSION: Regarding GvHD, there was no difference in efficacy between TCR and CsA usage. Patients taking TCR experienced noticeably higher nephrotoxicity in terms of adverse effects. This difference should be considered according to the patient's clinical situation while choosing a CNI.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Talassemia , Humanos , Criança , Ciclosporina/uso terapêutico , Tacrolimo/uso terapêutico , Imunossupressores/uso terapêutico , Estudos Retrospectivos , Doença Enxerto-Hospedeiro/etiologia , Doença Enxerto-Hospedeiro/prevenção & controle , Doença Enxerto-Hospedeiro/epidemiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Inibidores de Calcineurina/uso terapêutico , Receptores de Antígenos de Linfócitos T
16.
Pediatr Blood Cancer ; 71(4): e30903, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38321586

RESUMO

Opsoclonus-myoclonus-ataxia syndrome (OMAS) is an autoimmune central nervous system disorder, primarily manifesting as a paraneoplastic sequalae to neuroblastoma, and characterized by motor disorders and behavioral disturbances. OMAS is typified by aberrant B-cell and T-cell activation. Current treatment involves immunosuppression using corticosteroids, intravenous immunoglobulin, and rituximab. However, these approaches often lead to treatment-related toxicities and symptomatic recurrences with chronic neurocognitive impairment. We treated three children with refractory neuroblastoma-associated OMAS with tacrolimus, a T-cell-targeting calcineurin inhibitor, effectively controlling symptoms within a month and enabling the discontinuation of immunosuppression with minimal side effects. Tacrolimus shows promise as a therapeutic option for refractory OMAS.


Assuntos
Neuroblastoma , Transtornos da Motilidade Ocular , Síndrome de Opsoclonia-Mioclonia , Criança , Humanos , Tacrolimo/uso terapêutico , Transtornos da Motilidade Ocular/complicações , Síndrome de Opsoclonia-Mioclonia/tratamento farmacológico , Síndrome de Opsoclonia-Mioclonia/etiologia , Síndrome de Opsoclonia-Mioclonia/diagnóstico , Neuroblastoma/complicações , Neuroblastoma/tratamento farmacológico , Neuroblastoma/diagnóstico , Ataxia/complicações
17.
Orphanet J Rare Dis ; 19(1): 19, 2024 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-38243274

RESUMO

BACKGROUND: Oral prednisone has been recognized as the first-line therapy for the treatment of ocular myasthenia gravis (OMG). However, its long-term use is complicated by numerous adverse effects and is ineffective for some OMG patients in reaching remission. This study aimed to evaluate the effectiveness and safety of intravenous methylprednisolone (IVMP) and tacrolimus monotherapy for OMG patients with unsatisfactory responses to conventional prednisone therapy. METHODS: We retrospectively reviewed 57 OMG patients who had not achieved satisfactory improvement after prednisone therapy and thereby received IVMP or tacrolimus monotherapy for at least 6 months. Ocular symptoms were evaluated by the ocular-quantitative MG (QMG) score at each time point. A ≥ 2-point fall in ocular QMG score was defined as the cut-off point to indicate clinical improvement. Logistic regression analysis was performed to identify factors associated with the efficacy of IVMP at discharge. Adverse events were recorded. RESULTS: Both IVMP and tacrolimus monotherapy demonstrated significant clinical efficacy, with no statistical differences observed at the study endpoint. The proportions of patients who reached the cut-off point for efficacy evaluation were higher in the IVMP group than in the tacrolimus group (1, 3, and 6 months: 51.7% (15/29) vs 12.0% (3/25), p = 0.002; 69.0% (20/29) vs 40.0% (10/25), p = 0.033; 69.0% (20/29) vs 46.4% (13/28), p = 0.085, respectively). Multivariate logistics analysis showed that high ocular QMG scores at baseline indicated favourable responses to IVMP treatment (OR = 1.781; 95% CI 1.066-2.975; p = 0.028). All the adverse events were transient and tolerable. CONCLUSION: Our findings suggest that both IVMP and tacrolimus monotherapy hold promise as viable treatment options for OMG patients with unsatisfactory responses to oral prednisone. The study supports the safety and effectiveness of both therapies, with IVMP exhibiting faster improvement and favourable efficacy in patients with high ocular QMG scores.


Assuntos
Metilprednisolona , Miastenia Gravis , Humanos , Prednisona/uso terapêutico , Estudos Retrospectivos , Metilprednisolona/uso terapêutico , Tacrolimo/uso terapêutico , Miastenia Gravis/tratamento farmacológico , Resultado do Tratamento
18.
Leuk Lymphoma ; 65(4): 493-502, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38164945

RESUMO

We investigated the outcomes after adult haploidentical (haplo) and matched unrelated donor (MUD) hematopoietic cell transplantation (HCT) in a single-center study (n = 452) including 276 MUD and 176 haplo transplants. Myeloablative (37%) and reduced-intensity conditioning (63%) were performed. Graft sources included peripheral blood (50%) and bone marrow (50%). GVHD prophylaxis included tacrolimus/methotrexate (53%) and post-transplant cyclophosphamide-based (47%). In MUD versus haplo HCT recipients, a similar incidence of neutrophil engraftment (18 vs 17 days, p = 0.895), grade II-IV acute GVHD (51% vs 50%, p = 0.773), relapse (26% vs 23%, p = 0.578), non-relapse mortality (22% vs 23%, p = 0.817), 1-year disease-free survival (62% vs 63%. p = 0.921), and 1-year overall survival (73% vs 74%, p = 0.744) were observed. Earlier platelet engraftment (22 vs 27 days, p < 0.001) and higher chronic GVHD (45% vs 35%, p = 0.040) were noted in MUD as compared to haplo HCT. Allogeneic transplantation should be done promptly whenever indicated, utilizing either matched unrelated or haploidentical donors.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Adulto , Humanos , Doadores não Relacionados , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Ciclofosfamida/uso terapêutico , Doença Enxerto-Hospedeiro/etiologia , Doença Enxerto-Hospedeiro/prevenção & controle , Doença Enxerto-Hospedeiro/tratamento farmacológico , Tacrolimo/uso terapêutico , Condicionamento Pré-Transplante/efeitos adversos , Estudos Retrospectivos
19.
J Gastroenterol ; 59(4): 302-314, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38277006

RESUMO

BACKGROUND: Hospitalization for ulcerative colitis (UC) is potentially life-threatening. Severe disease in the Japanese criteria which modifies the Truelove-Witts' criteria might encompass more fulminant cases than the definition for acute severe UC. However, few studies have investigated the predictive factors for clinical remission (CR) after medical treatments for severe hospitalized patients by Japanese criteria. METHODS: Medical treatment selection, CR rates, and factors contributing to CR on day 14 were assessed in severe patients by Japanese criteria. We also investigated whether the reduction rate in patient-reported outcome 2 (PRO2) on day 3 could predict short-term prognosis. RESULTS: Eighty-five severe hospitalized patients were selected. Corticosteroids, tacrolimus, and infliximab were mainly selected as first-line treatments (76/85; 89.4%). The CR rates on day 14 were 26.8%, 21.4%, and 33.3% in patients receiving corticosteroids, tacrolimus, and infliximab, respectively. Extensive disease (odds ratio [OR] 0.022; 95% confidence interval [CI] 0.002-0.198), higher PRO2 (OR 0.306; 95% CI 0.144-0.821), and higher reduction rate in PRO2 on day 3 (OR 1.047; 95% CI 1.019-1.075) were independent factors predicting CR on day 14. If the cutoff value for the reduction rate in PRO2 on day 3 was 18.3%, sensitivity was 0.714 and specificity was 0.731 to predict CR on day 14. A higher reduction rate in PRO2 on day 3 (OR 0.922; 95% CI 0.853-0.995) was a negative factor to predict surgery within 28 days. CONCLUSIONS: Tacrolimus and infliximab in addition to corticosteroids were used as first-line treatment in severe hospitalized patients. PRO2 on day 3 is a useful marker for switching to second-line therapy or colectomy.


Assuntos
Colite Ulcerativa , Humanos , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/induzido quimicamente , Infliximab/uso terapêutico , Imunossupressores/uso terapêutico , Tacrolimo/uso terapêutico , Japão , Corticosteroides/uso terapêutico , Resultado do Tratamento , Colectomia , Estudos Retrospectivos
20.
Ann Hematol ; 103(4): 1403-1407, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38285080

RESUMO

Isolated pleural effusion is a rare manifestation of chronic graft versus host disease (cGVHD) after hematopoietic stem cell transplantation (HSCT). We herein report a 58-year-old woman presenting with massive pleural effusion approximately 1 year after allogeneic HSCT, who was successfully treated with corticosteroid. She had discontinued tacrolimus approximately 1 month before she presented with pleural effusion, which was attributed to cGVHD after a thorough exclusion process. This case illustrates a unique manifestation of atypical cGVHD and highlights the need for prompt therapy initiation.


Assuntos
Síndrome de Bronquiolite Obliterante , Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Derrame Pleural , Feminino , Humanos , Pessoa de Meia-Idade , Doença Enxerto-Hospedeiro/tratamento farmacológico , Doença Enxerto-Hospedeiro/etiologia , Corticosteroides/uso terapêutico , Derrame Pleural/tratamento farmacológico , Derrame Pleural/etiologia , Tacrolimo/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Doença Crônica
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA