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PubMed2002

The use of basiliximab in solid organ transplantation.

The risk of acute rejection is at its highest early post-transplant. The use of various antibodies early after transplant achieves potent immunosuppression to prevent acute rejection, allowing the clinician the opportunity to optimise baseline immunosuppressive management and to delay the use of nephrotoxic agents (calcineurin inhibitors), while the graft reaches a baseline function. Basiliximab (Simulect trade mark, Novartis) is a monoclonal antibody that binds specifically to the alpha-subunit of the human high-affinity interleukin-2 receptor (IL-2r) complex, consequently inhibiting interleukin-2 (IL-2) binding. IL-2 receptors are selectively expressed on the surface of the activated lymphocytes. Administration of basiliximab inhibits IL-2 mediated activation of lymphocytes, a critical pathway involved in allograft rejection. Several clinical studies have shown that basiliximab administration as an induction agent significantly reduces the incidence of acute rejection, even in high risk patients. In addition, basiliximab is well-tolerated with minimal side effects.

Antibodies, Monoclonal↗
PubMed2006

Early steroid withdrawal protocol with basiliximab, cyclosporine and mycophenolate mofetil in renal-transplant recipients.

OBJECTIVE: Adverse effects of steroids have led to efforts to minimize their use in recipients of organ transplants. This study evaluated an early steroid withdrawal protocol including basiliximab, cyclosporine (CsA) and mycophenolate mofetil (MMF) in renal-transplant recipients. METHODS: Between January 2001 and April 2005, our early steroid withdrawal protocol was used in 130 patients who underwent renal transplantation. Immunosuppression consisted of CsA (6-8 mg/kg), MMF (2 g/kg) and methylprednisolone (MP); basiliximab was given as induction therapy (steroid withdrawal group). MP was administered in a dose of 500 mg or 250 mg at renal transplantation; thereafter, the dose was rapidly tapered and MP was withdrawn on day 14 post-transplant. RESULTS: The incidence of acute rejection in the steroid withdrawal group was similar to that in the conventional steroid treatment group (without basiliximab) (18% vs. 21%). The severity of rejection episodes was similar in the two groups. Patient and graft survivals were 100% and 97% in the steroid withdrawal group. In 80 of the 130 patients (62%) in the steroid withdrawal group, MP was successfully withdrawn, with good allograft function during follow-up. In the other 50 patients (38%), MP was reinitiated because of acute rejection or other reasons. The success rate of steroid withdrawal 12 months after transplantation in recipients of ABO-compatible grafts was significantly higher than that in recipients of ABO-incompatible grafts (66% vs. 44%). The dose of MMF during the 12 months after renal transplantation was significantly lower in steroid reinitiated group than in the successful withdrawn group (p<0.05). Patients in the successful withdrawn group showed metabolic benefits such as lower cholesterol levels as compared with the steroid reinitiated group. CONCLUSION: Although further follow-up is necessary to confirm our results, our protocol successfully permitted the early withdrawal of steroids in 62% of renal-transplant recipients, with no resumption of steroid treatment during 3 years of follow-up.

ABO Blood-Group System↗
PubMed2003

Basiliximab: efficacy and tolerability in adults and children.

UNLABELLED: An open, single arm, prospective clinical trial to assess the efficacy and safety of basiliximab (Simulect) combined with cyclosporine microemulsion (Neoral), steroids, and azathioprine was performed in four centers in Chile, two adult and two pediatric. The 23 patients who were enrolled were followed for 12 months. There were four acute rejection episodes (three adults and one child) and three graft losses (two adults and one child) during the study. Renal function in both adult and pediatric patients at 6 and 12 months was good. Basiliximab was well tolerated. The incidence of infections was low, with only one CMV infection. There were no deaths. CONCLUSIONS: The incidence of acute rejection episodes among renal allograft recipients treated with basiliximab is low, showing that the drug is well tolerated. In particular the number of CMV infections is extremely low.

Adult↗
PubMed2005

Comparative study of clinical outcome in kidney transplantation between early steroid withdrawal protocol using basiliximab, calcineurin inhibitor, and mycophenolate mofetil and triple regimen consisting of calcineurin inhibitor, mycophenolate mofetil, and steroid.

AIMS: Effect of early steroid withdrawal protocol using basiliximab in kidney transplantation (KTx) on the clinical outcomes was investigated as compared with triple regimen. METHODS: Kidney transplant patients in group 1 (n = 62) were treated with 8 mg/kg of cyclosporine (CsA), 2000 mg of MMF, two bolus IV injections of 20 mg of basiliximab and 500 mg of methylprednisolone (MP) rapidly tapered and withdrawn at 14 postoperative days (POD). Group 2 (n = 56) was treated with same dose of CsA and MMF, and 250 mg of MP tapered and continued. Acute rejection (AR) episodes were treated with MP pulse therapy followed by muromonab CD3 (OKT3) in case of steroid-resistant rejection. RESULTS: In 46 of 62 cases (74.2%) in group 1, steroid was successfully withdrawn at 13.7 +/- 1.7 POD. Graft survival at 3, 6, and 12 months in group 1 was 100%, 100%, and 98.4% (one death with functioning graft), and 100%, 98.2%, and 96.4% in group 2, respectively. The incidence of AR was 12.9% for group 1 and 42.9% for group 2, among which 21 cases in group 2 were treated with ALG or OKT3; no patient needed ALG or OKT3 in group 1. Fifteen cases in group 1 and 13 cases in group 2 developed CMV antigenemia, among which febrile episode was exhibited in 3 cases (4.8%) in group 1 and 5 cases (8.9%) in group 2. CONCLUSIONS: Early steroid withdrawal protocol using basiliximab is promising for reducing the incidence of AR (especially steroid-resistant rejection), CMV diseases, and steroid-related complications.

Adrenal Cortex Hormones↗
PubMed2005

The effect of urinary protein excretion in post-renal transplant recurrent nephrotic syndrome on basiliximab pharmacokinetics and pharmacodynamics in a pediatric patient.

A pharmacokinetic and pharmacodynamic study of Basiliximab therapy has not been reported in recurrent post-renal transplant nephrotic syndrome. We assessed the effect of urinary protein in a focal segmental glomerulosclerosis patient. We measured the serum concentrations of basiliximab as well as the rate of activated CD25-positive T lymphocytes at fixed intervals in nephrotic versus eight nonnephrotic pediatric post-renal transplant patients. A significant reduction in the antibody concentrations was observed in focal segmental glomerulosclerosis. The CD25 expression rate showed a similar trend to the pharmacokinetic data. We conclude that cases of massive urinary protein excretion need special care to maintain immunosuppression in renal transplant using Basiliximab.

Adult↗
PubMed2005

Basiliximab and mycophenolate mofetil in combination with low-dose cyclosporine and methylprednisolone effectively prevent acute rejection in kidney transplant recipients.

The aim of the study was to analyze whether immunosuppressive treatment with basiliximab and mycophenolate mofetil (MMF), allowed a reduction in methylprednisolone and cyclosporine dosages without increasing the incidence of acute rejection episodes, reducing 1-year graft and patient survivals, or increasing the rates of infections and malignancy in the first year. The two groups were group A (n = 72), treated with methylprednisolone and cyclosporine and in the first 2 weeks with azathioprine; group B (n = 72), treated with basiliximab, MMF, and low-dose cyclosporine and methylprednisolone. The patients were followed for 1 year. The incidence of acute rejection episodes in the first year was significantly lower in group B (2.8%) than group A (12.5%; P < .05). The cumulative methylprednisolone dose, the daily dose, and the average cyclosporine trough blood level were significantly lower in group B (P < .001). One-year serum creatinine was significantly lower in group B (112 +/- 45 micromol/L) than group A (138 +/- 51 micromol/L; P < .01). One-year graft survival was 91.7% in group A and 98.6% in group B. One-year patient survival was 98.6% in group A and 100% in group B. The groups did not differ significantly in the incidence of bacterial, viral, or fungal infections. Immunosuppression with basiliximab and MMF allowed a reduction in cyclosporine and methylprednisolone dosages and was associated with significantly lower incidences of acute rejections episodes with better graft function in the first year as opposed to immunosuppression with higher doses of cyclosporine and methylprednisolone alone. Both immunosuppressive regimens showed the same infection rates and did not differ significantly in the occurrence of malignant diseases within the first year.

Acute Disease↗
PubMed2006

Effective immunoprophylaxis with basiliximab plus triple therapy in renal transplantation: five-year single-center experience.

We studied prospectively the efficacy and safety of basiliximab combined with triple immunosuppression in adult recipients of > or = 1 HLA-mismatched deceased donor renal grafts. All studied patients received equal immunosuppressive drugs: 20 mg infusion of basiliximab on day 0 and on day 4, cyclosporine microemulsion (Neoral), mycophenolate mofetil, and methylprednisolone. An analysis of 1-year data assessed the incidence of acute rejection episodes, safety of this therapy, renal graft function, and patient and graft survivals. One hundred seventy-two patients were studied. The HLA-antigen mismatches were 2.9 +/- 0.9 (mean +/- SD), and the cold ischemia time was 22.0 +/- 7.5 hours. Fifty-three (31.5%) patients experienced delayed graft function. At 12 months, 5 (3.0%) patients experienced acute rejection. Six renal grafts were lost, but not from rejection. Two patients died. Sixty-six infections required treatment in the hospital. One carcinoma of cervix (in situ) and two basal cell carcinomas of skin were detected. Hypersensitivity reactions and cytokine-release syndrome were not observed. At 12 months, serum creatinine was significantly higher (119 +/- 46 micromol/L; P < .001) in patients with delayed graft function than in patients with immediate graft function (99 +/- 26 micromol/L). Patient and graft survivals were 98.8% and 97.1%, respectively. Basiliximab combined with this triple therapy was an efficient and safe immunosuppression strategy, demonstrated with very low incidence of acute rejections, an acceptable adverse event profile, excellent graft function, and high short-term survival rates in adult recipients of deceased donor renal transplant.

Adolescent↗
PubMed2003

Immunoprophylaxis with Simulect (basiliximab) in kidney transplantation: results from routine clinical practice at 18 kidney transplant units.

OBJECTIVE: The objective of this study is to assess a Simulect (basiliximab) regimen in routine clinical practice in the Spanish kidney transplantation units to evaluate efficacy and safety. METHODS: In this prospective, observational study, data on demographics, parameters of efficacy, and safety in patients who under with kidney transplantation treated with Simulect (basiliximab) were collected through an on-line collection system. RESULTS: One hundred sixty three patients at 18 kidney transplant units included 12 months follow-up. The patient mean age was 52 years (DS 13,67) including 96 (58.90%) men and 67 (41.10%) women. Cold ischemia time was 19 hours (DS 6,79). Only 2 patients presented with PRA >50%. For prophylactic immunosuppression, 67.13% of patients received triple therapy with CNI (cyclosporine 49.65% or tacrolimus 17.48%), MMF (66.43%) or AZA (10.49%), and steroids. Incidence of acute rejection (AR) at 12 months was 12.27% (1.84% steroid-resistant). In subgroup analysis, AR was 13.5% in nondiabetics and 4.5% in diabetics, including 3 steroid-resistant episodes (1.84%) in nondiabetics and none in diabetics. In relation to donor age, AR was incidence 10.3% in patients with kidneys from donors aged 50 years or younger and 10.6% when donors were older than 50 years, including 1 (1.73%) and 2 (1.93%) steroid-resistant episodes, respectively. The graft and patient survival rates at 12 months were 90% and 98%, respectively. CONCLUSIONS: Simulect (basiliximab) used in routine clinical practice provided good prophylaxis against acute rejection in several kidney transplant patient populations, similar to that observed in randomized clinical studies with excellent tolerability and safety.

Adrenal Cortex Hormones↗
PubMed2003

Non-cardiogenic pulmonary edema during basiliximab induction in three adolescent renal transplant patients.

BACKGROUND: Introduction of the anti-CD-25 mAb basiliximab into renal transplant protocols has reduced the incidence of acute rejection. However, its side-effect profile is still unfolding. We report three adolescents who developed severe non-cardiogenic PE within 2 days of renal transplantation. METHODS: Pretransplant cardiorespiratory evaluation was normal in all cases. Transplant immunosuppression consisted of basiliximab induction, corticosteroids, and tacrolimus. Patients received standard fluid management during and after the transplant surgery. CASE REPORTS: Patients 1 and 2 were 17- and 21-yr-old females. Pretransplant Hct values were 35 and 25% respectively. Each received 5-L normal saline during surgery. EBL was 200 and 500 mL in patients 1 and 2, respectively. There was immediate post-operative diuresis. Both developed non-cardiogenic PE by POD no. 2. BIPAP and PRVC were administered respectively. In both cases PE resolved within 1 wk. Patient 3 was a 19-yr-old male with pretransplant Hct of 43% who received a cadaveric renal transplant after 23.5-h cold-ischemia; 3.5 L normal saline was given during surgery. EBL was 100 mL. Non-cardiogenic PE ensued on POD no. 2 warranting assisted ventilation. The patient died following a sudden cardiopulmonary arrest on POD no. 3. CONCLUSIONS: Potential mechanisms for the development of PE include cytokine release from basiliximab with increased capillary permeability, volume overload and ischemic-reperfusion injury. Improved awareness of this potential complication, prudent fluid management, and efforts to minimize graft-ischemia are recommended to prevent further cases.

Adolescent↗
PubMed2006

Therapy for severe refractory acute graft-versus-host disease with basiliximab, a selective interleukin-2 receptor antagonist.

Basiliximab is a chimeric monoclonal antibody that binds to the alpha chain of IL-2R on activated cytotoxic T-cells, inhibiting lymphocyte proliferation. We report 34 patients with refractory acute GVHD (grade III-IV) who received basiliximab from December 1998 to October 2003. Adults received 40 mg weekly (2-3 doses) and children received half of this dose. Median age was 13 years. Twenty-five donors were unrelated. The stem cell source was bone marrow in 30 and cord blood in four. Complete responses were seen in 27/32 patients (84%) with skin, 12/25 (48%) with gut and 6/23 (26%) with liver GVHD. Median duration of response was 38 days (5-1103). Overall survival at 5 years was 20%. Eleven patients (32%) are alive. The main causes of death were CMV (n=4), fungus (n=6), sepsis (n=8), hemorrhage (n=2), and relapse (n=2). Graft-versus-host disease flares were observed in 14 patients (41%), half being rescued by other therapies. In conclusion, basiliximab was able to induce complete responses in patients with refractory acute GVHD. Prospective studies are necessary to evaluate the optimal treatment schedule.

Acute Disease↗
PubMed2006

A prospective, randomized, multicenter trial of tacrolimus-based therapy with or without basiliximab in pediatric renal transplantation.

In a 6-month, multicenter, randomized, controlled, open-label, parallel-group trial, we investigated the efficacy and safety of adding basiliximab to a standard tacrolimus-based regimen in pediatric renal transplant recipients. Patients < 18 years received tacrolimus/azathioprine/steroids (TAS, n = 93) or tacrolimus/azathioprine/steroids/basiliximab (TAS + B, n = 99). Target tacrolimus levels were 10-20 ng/mL between days 0-21 and 5-15 ng/mL thereafter. Steroid dosing was identical in both groups. Basiliximab was administered at 10 mg (patients < 40 kg) or 20 mg (patients > or = 40 kg) within 4 h of reperfusion; the same dose was repeated on day 4. Biopsy-proven acute rejection rates were 20.4% (TAS) and 19.2% (TAS + B); steroid-resistant acute rejection rates were 3.2% and 3.0%, respectively. Patient survival was 100%; graft survival rates were 95% in both arms. The nature and incidence of adverse events were similar in both arms except toxic nephropathy and abdominal pain, which were significantly higher in the TAS + B arm (14.1% vs. 4.3%; p = 0.03 and 11.1% vs. 2.2%; p = 0.02; respectively). Median serum creatinine concentrations at 6 months were 86 micromol/L in the TAS and 91 micromol/L in the TAS + B arm; glomerular filtration rate was 79.4 and 77.6 (mL/min/1.73 m2), respectively. Adding basiliximab to a tacrolimus-based regimen is safe in pediatric patients, but does not improve clinical efficacy.

Adolescent↗
PubMed2007

The role of basiliximab induction therapy in organ transplantation.

Basiliximab is a chimeric monoclonal antibody that selectively binds to the alpha-subunit (CD25) of IL-2 receptors on the surface of activated T lymphocytes, and is a highly effective prophylaxis agent against rejection in organ transplant recipients. Its pharmacokinetic profile is characterized by a biphasic and slow clearance with long terminal half-life and a volume of distribution within the central compartment and outside the circulatory system. Basiliximab induction demonstrated an excellent safety profile, with no increase in the incidence of malignancy, infections or death. It has also been used effectively in high-risk recipients, steroid-sparing and steroid-minimization protocols, and in post-transplant patients with renal dysfunction who would benefit from delayed introduction of calcineurin inhibitors. Basiliximab induction therapy given at days 0 and 4 after transplantation appears to be safe and cost-effective for immunoprophylaxis in solid organ transplant recipients, specifically in kidney and liver transplantation, when given in conjunction with dual or triple immunosuppressive therapy.

Animals↗
PubMed2000

[Daclizumab and basiliximab: monoclonal mouse-man antibodies with effective immunosuppression without side effects].

Four major double-blind randomized trials in kidney transplant patients have shown that the interleukin-2 receptor (IL-2R alpha) antagonists declizumab or basiliximab, when added to an immunosuppressive regimen consisting of cyclosporin and prednisone, reduce the incidence of acute rejections after kidney transplantation by 30-40%, during the first 6 months. Daclizumab and basiliximab are monoclonal antibodies of which the variable parts are of mouse origin and the other components of human origin. The addition of the interleukin-2 receptor antagonists was not accompanied by extra side effects. Ongoing clinical trials aim at answering the question whether the addition of daclizumab and basiliximab will allow to avoid or decrease the use of more toxic immunosuppressive drugs.

Antibodies, Monoclonal↗
PubMed2004

Promise of Neoral C2, basiliximab, and everolimus in lung transplantation.

Immunosuppressive therapy to prevent rejection of allografts is continually evolving in terms of development of new medications and the application of established ones. This review summarizes current knowledge regarding monitoring blood cyclosporine microemulsion (Neoral) levels 2 hours postdose (C2), as well as the relatively new immunosuppressants basiliximab and everolimus, with a particular view to lung transplantation. C2 monitoring appears to have merit over the traditional method of trough-level monitoring. Based on short-term studies in various solid organ transplant systems, C2 seems better able to predict the area under the time-concentration curve for Neoral, a benefit that extends to improved clinical outcomes. Further studies are needed to verify the robustness of clinical improvement, particularly in lung transplant recipients. Basiliximab and everolimus target stages of the immune response distinct from that targeted by Neoral. Studies conducted to date in various solid organ transplant systems suggest that use of Neoral concomitantly with one or both of these drugs provides enhanced protection from allograft rejection while improving the tolerability of immunosuppressive therapy. If these results are confirmed in lung transplant patients, improvements in lung transplantation outcomes are to be expected.

Antibodies, Monoclonal↗
PubMed2005

Treatment of steroid-resistant acute liver transplant rejection with basiliximab.

Current rescue therapies for acute steroid-resistant rejection, such as OKT3 and high-dose tacrolimus, are not uncommonly associated with side effects that contribute to significant morbidity of the patient. Basiliximab is a chimeric monoclonal antibody that acts as an interleukin-2 receptor antagonist on the surface of activated T lymphocytes. It has until now only been used as immunoprophylaxis in adult liver transplant patients. In this report, we describe the use of Basiliximab as rescue therapy in a case of acute steroid-resistant rejection in an adult living related liver transplant recipient.

Adrenal Cortex Hormones↗
PubMed2005

The pathologic impact of tacrolimus on protocol biopsy in renal transplant patients with basiliximab-based immunosuppression.

Forty-two ESRD patients underwent renal transplantation using basiliximab (mean age: 30.6 +/- 18.6 years at transplantation; male: 50%; ESRD duration: 51.6 +/- 13.0 months) between February, 2000 and July, 2003. All patients had a protocol biopsy on the day of transplant, on discharge from the hospital (35.5 +/- 13.2 days), and at 1 year after transplant. The immunosuppression included a calcineurin inhibitor, basiliximab, mycophenolate mofetil (MMF), and methylprednisolone. While 16 patients used tacrolimus (FK group: 29.4 +/- 16.6 years old), 26 patients used cyclosporine (CsA group: 31.4 +/- 20.1 years old). Protocol biopsies were graded according to the Banff 97 classification. The incidence of acute rejection episodes within 1 year was greater in the CsA (15%) than the FK group (6%). Serum creatinine at hospital discharge was similar (CsA: 1.01 +/- 0.59 mg/dL, FK: 0.97 +/- 0.49, p = .18); however creatinine at 1 year differed significantly (CyA: 1.22 +/- 0.88 mg/dL, FK: 0.92 +/- 0.39, P = .03). There was a trend toward an increase in the score of interstitial inflammations in the CsA group, while it remained constant in the FK cohort (P = .05 at 1 year between the two groups). Other pathologic scores (t, ci, ct, cv, ah) did not differ between the groups at 1 year. Although there were no differences in the demographics between the two groups, there were several trends toward better renal function in the FK group.

Antibodies, Monoclonal↗
PubMed1999

Constructing a prediction interval for time to reach a threshold concentration based on a population pharmacokinetic analysis: an application to basiliximab in renal transplantation.

Basiliximab is an immunosuppressant chimeric monoclonal antibody directed to the human interleukin-2 receptor alpha-chain used for prevention of acute rejection episodes in organ transplantation. The minimally effective serum concentration necessary to saturate receptor epitopes in kidney transplant patients is 0.2 microgram/ml. To guide dose selection for Phase 3 efficacy trials, a population pharmacostatistical model was fitted to intensively sampled Phase 2 pharmacokinetic data. This served as a basis from which to examine candidate dose regimens with respect to the duration over which receptor-saturating concentrations would be achieved posttransplant. Three prediction methods were assessed: one based on simulations, and two others based on first-order approximation using either inverse regression or inversion of confidence intervals. An 80% prediction interval was generated by each method to evaluate its predictive performance against prospectively collected Phase 3 data in 39 renal transplant patients who received two injections of 20 mg basiliximab, one prior to surgery and one on Day 4 posttransplant. All methods provided correct prediction of the duration of receptor-saturating concentration. As anticipated, the best performance was obtained from the simulation method which predicted 30 values in the 80% prediction interval, 19.7-52.7 days. The actually observed 80% interval from the Phase 3 data was 23.7-58.3 days.

Algorithms↗
PubMed2003

Use of basiliximab in pediatric liver transplantation for Langerhans cell histiocytosis.

This report describes a 16-month-old girl with multi-system Langerhans cell histiocytosis (LCH), who developed end-stage liver disease despite intensive chemotherapy. She underwent a liver transplant at 28 months of age while receiving maintenance chemotherapy for bony lesions. In view of previous reports of a high incidence of acute cellular rejection and post-transplant lymphoproliferative disease (PTLD) in children transplanted for LCH, basiliximab was added to the post-transplant immunosuppression regime of tacrolimus and prednisolone. Sixteen months post-transplant, she has had no episodes of acute rejection or PTLD and her LCH has remained in remission. Current literature regarding liver transplantation (LTx) for LCH and the use of basiliximab in pediatric LTx is reviewed.

Antibodies, Monoclonal↗