Bristol-Myers Squibb Presents New 4-Year Data from the Long-Term Extensions of the BENEFIT and BENEFIT-EXT Clinical Trials of NULOJIX® (belatacept)
- Renal function results comparable to the benefits observed for NULOJIX at three year analysis
- Safety profile of NULOJIX consistent over the 4th year compared with results at year 3, with no new safety signals identified
PRINCETON, N.J.--(BUSINESS WIRE)-- Bristol-Myers Squibb Company (NYSE: BMY) today announced new 4-year results from the long-term extensions (LTE) of the BENEFIT and BENEFIT-EXT clinical trials of NULOJIX® (belatacept), the first selective T-cell costimulation blocker indicated for the prophylaxis of organ rejection in adult Epstein-Barr Virus (EBV) seropositive patients receiving a kidney transplant, in combination with basiliximab induction, mycophenolate mofetil (MMF), and corticosteroids. Results showed that the safety profile of NULOJIX through year 4 was consistent compared with results at year 3 with no new safety signals being identified, and that the renal function benefit versus cyclosporine was maintained through 4 years in patients enrolled in the LTE from both the BENEFIT and BENEFIT-EXT trials. The new data were presented in oral sessions at the 2012 American Transplant Congress (ATC) in Boston.
These findings show the NULOJIX safety and tolerability profile in adult kidney transplant recipients at 4 years was consistent with what we have observed previously and renal function sustained over time, said Brian Daniels , M.D., senior vice president, Global Development and Medical Affairs, Bristol-Myers Squibb (BMY). The results of these studies broaden our understanding of NULOJIX and will help physicians in the transplant community make informed decisions about treatment options.
NULOJIX was approved by the U.S. Food and Drug Administration (FDA) in June 2011 for the prophylaxis of organ rejection in adult EBV seropositive patients receiving a kidney transplant (not for transplanted organs other than the kidney), in combination with basiliximab induction, MMF, and corticosteroids. FDA approval was based on data from BENEFIT and BENEFIT-EXT -- two 3-year, phase 3, open-label, randomized, multicenter, active-controlled studies.
The most serious adverse reactions reported with NULOJIX are post-transplant lymphoproliferative disorder (PTLD), predominantly CNS PTLD, and other malignancies, as well as serious infections, including JC virus-associated PML (often a rapidly progressive and fatal opportunistic infection) and polyoma virus nephropathy. Due to increased risks, including PTLD and PML, higher than recommended doses or more frequent dosing of NULOJIX® (belatacept) is not recommended.
4-Year Results of BENEFIT Long-Term Extension
A total of 457 of 471 patients who completed 3 years of treatment entered the long-term extension of the BENEFIT trial. Twenty-five patients discontinued the long-term extension between years 3 and 4 (n = 6 on more intensive regimen of NULOJIX, MI; n = 6 on less intensive regimen of NULOJIX, LI; n = 13 cyclosporine-treated patients); 4 patients died during year 4 (n = 1 MI; n = 3 cyclosporine-treated patients); and 1 patient experienced graft loss (n = 1 cyclosporine-treated patient). Two patients experienced an acute rejection episode (n = 1 LI; n = 1 cyclosporine-treated patient).
At 4 years, the mean calculated Glomerular Filtration Rate (a measure of renal function) was 73.8 ± 19.6 (MI), 75.1± 17.0 (LI), and 50.0 ± 18.7 (cyclosporine-treated patients) mL/min/1.73 m2.
The incidence rate of serious infections from initial randomization through year 4 was 10.3 (MI), 10.4 (LI), and 15.7 (cyclosporine-treated patients) events per 100 patient years of exposure, and the incidence rate of overall malignancies was 2.3 (MI), 1.4 (LI) and 3.0 (cyclosporine-treated patients) events per 100 patient years of exposure. No new cases of PTLD were observed between years 3 and 4, and no new safety signals were identified between years 3 and 4.
The NULOJIX MI regimen is not recommended for patients taking NULOJIX as it may result in higher incidence of serioussometimes fataladverse reactions, including serious infections, overall malignancies and death.
4-Year Results of BENEFIT-EXT Long-Term Extension
A total of 304 of 323 patients who completed 3 years of treatment entered the long-term extension of the BENEFIT-EXT trial (n = 104 MI; n = 113 LI; n = 87 cyclosporine-treated patients). Sixteen patients discontinued the long-term extension between years 3 and 4 (n = 7 MI; n = 6 LI; n = 3 cyclosporine-treated patients); 6 patients died during year 4 (n = 2 MI; n = 4 LI); and 2 experienced graft loss (n = 1 LI; n = 1 cyclosporine-treated patients). One MI patient taking NULOJIX experienced an acute rejection episode during year 4.
At 4 years, the mean calculated Glomerular Filtration Rate was 54.5 ± 18.0 (MI), 53.5 ± 19.1 (LI), and 42.4 ± 16.5 (cyclosporine-treated patients) mL/min/1.73 m2.
The incidence rate of serious infections from randomization through year 4 was 23.8 (MI), 15.9 (LI), and 18.7 (cyclosporine-treated patients) events per 100 patient years of exposure, and the incidence rate of overall malignancies was 2.6 (MI), 3.2 (LI), and 2.8 (cyclosporine-treated patients) events per 100 patient years of exposure. Three cases of PTLD occurred in the long-term extension population from the time of initial randomization through August 2011 (n = 2 LI; n = 1 cyclosporine). Both PTLD cases in the LI group occurred in patients seronegative for EBV at the time of transplantation. NULOJIX® (belatacept) should only be used in EBV-positive patients.
Design of BENEFIT and BENEFIT-EXT Long-Term Extensions
The BENEFIT study enrolled recipients of Standard Criteria Deceased (SCD) and living donor kidneys. SCD kidneys were defined as organs from a deceased donor with anticipated cold ischemia time (CIT) of <24 hours and not meeting the definition of Extended Criteria Donor (ECD) organs. CIT refers to the time the organ is cooled after organ procurement until implantation at the time of transplant. The BENEFIT-EXT study enrolled recipients of ECD kidneys and is the largest study conducted to date in patients receiving ECD kidneys. In this study, ECD kidneys were defined as deceased donors with at least 1 of the following: (1) donor age e 60 years; (2) donor age e50 years and other donor comorbidities (defined as 2 or more of the following: stroke, hypertension, serum creatinine > 1.5 mg/dL); (3) donation of organ after cardiac death; or (4) anticipated CIT of the organ of e 24 hours.
In both studies, the recommended dose of NULOJIX was compared with cyclosporine. Both patient groups received basiliximab induction, MMF and corticosteroids. Both studies excluded recipients undergoing first transplant with current panel reactive antibodies (PRA, a measure of pre-existing antibodies that may negatively impact the kidney transplant) e50% and recipients undergoing retransplantation with current PRA e30%; patients with HIV, hepatitis C or evidence of current hepatitis B infection, active tuberculosis, and those in whom intravenous access was difficult to obtain. Through 3 years, both studies evaluated measures of efficacy (patient/graft survival and Efficacy Failure) and renal function.
The long-term extension studies presented at ATC 2012 included patients who remained on assigned therapy through 3 years in the BENEFIT or BENEFIT-EXT studies and enrolled in the long-term extensions of these studies. The primary objective of the long-term extensions was to assess the long-term safety and tolerability of NULOJIX through year 4, and to evaluate the continued evolution of renal function with long-term NULOJIX treatment.
NULOJIX is the first selective T-cell costimulation blocker approved by the U.S. Food and Drug Administration, indicated for the prophylaxis of organ rejection in adult patients receiving a kidney transplant, in combination with basiliximab induction, mycophenolate mofetil, and corticosteroids. NULOJIX should only be used in patients who are EBV seropositive. Use of NULOJIX for prophylaxis of organ rejection in transplanted organs other than kidney has not been established.
In vitro, belatacept inhibits T lymphocyte proliferation and the production of the cytokines interleukin-2, interferon-g, interleukin-4, and TNF-a. Activated T cells are the predominant mediators of immunologic rejection.
- NULOJIX® (belatacept) (in combination with basiliximab induction, mycophenolate mofetil [MMF], and corticosteroids) is indicated for prophylaxis of organ rejection in adults receiving a kidney transplant
- Use NULOJIX only in patients who are Epstein-Barr virus (EBV) seropositive
- Use of NULOJIX for prophylaxis of organ rejection in transplanted organs other than kidney has not been established
IMPORTANT SAFETY INFORMATION
Post-Transplant Lymphoproliferative Disorder (PTLD)
- NULOJIX patients are at increased risk for developing PTLD, predominantly involving the central nervous system (CNS)
- Recipients without immunity to EBV (ie, seronegative) are at particularly increased risk; therefore, NULOJIX is contraindicated in transplant recipients who are EBV seronegative or unknown serostatus
- Monitor for new or worsening neurological, cognitive, or behavioral signs and symptoms
- As the total burden of immunosuppression is a risk factor for PTLD, higher than recommended doses or more frequent dosing of NULOJIX or concomitant immunosuppressive agents are not recommended
Other known risk factors for PTLD include cytomegalovirus (CMV)
infection and T-cell-depleting therapy
- CMV prophylaxis is recommended for at least 3 months after transplantation
- Use T-cell-depleting therapy to treat acute rejection cautiously
Patients who are EBV seropositive and CMV seronegative may be at
increased risk of PTLD
- Since CMV seronegative patients are at increased risk for CMV disease (a known risk factor for PTLD), the clinical significance of CMV serology for PTLD remains to be determined; however, these findings should be considered when prescribing NULOJIX
Management of Immunosuppression
Only physicians experienced in immunosuppressive therapy and
management of kidney transplant patients should prescribe NULOJIX ®
- Patients should be managed in facilities with adequate laboratory and supportive medical resources
- The physician responsible for maintenance therapy should have complete information requisite for the follow-up of the patient
Progressive Multifocal Leukoencephalopathy (PML)
NULOJIX patients are at increased risk for PML, often a rapidly
progressive and fatal opportunistic infection
- In clinical trials, two cases were reported in patients receiving NULOJIX at higher cumulative doses and more frequently than the recommended regimen, along with MMF and corticosteroids; one occurred in a kidney transplant recipient and one occurred in a liver transplant recipient
- As PML has been associated with high levels of immunosuppression, higher than recommended doses or more frequent dosing of NULOJIX and concomitant immunosuppressive agents, including MMF, are not recommended
Monitor for new or worsening neurological, cognitive, or behavioral
signs and symptoms
- PML is usually diagnosed by brain imaging, cerebrospinal fluid testing for JC viral DNA by polymerase chain reaction, and/or brain biopsy
- Consultation with a specialist should be considered
- If PML is diagnosed, consider reduction or withdrawal of immunosuppression, weighing risk to the graft
Other Malignancies and Serious Infections
- Increased susceptibility to infection and possible development of malignancies may result from immunosuppression
- Patients should avoid prolonged exposure to ultraviolet light and sunlight
Patients receiving immunosuppressants, including NULOJIX, are at
increased risk for bacterial, viral, fungal, and protozoal infections,
including opportunistic infections and tuberculosis. Some infections
- Polyoma virus-associated nephropathy can lead to deteriorating renal function and graft loss; consider reduction in immunosuppression, weighing risk to the graft
- Tuberculosis was more frequently observed in patients receiving NULOJIX® (belatacept). Evaluate for tuberculosis and initiate treatment for latent infection prior to NULOJIX use
- CMV and Pneumocystis jiroveci prophylaxis is recommended after transplantation
Liver Transplant: use in liver transplant patients is not recommended due to increased risk of graft loss and death in a clinical trial with more frequent administration of NULOJIX than studied in kidney transplant, along with MMF and corticosteroids
Immunizations: avoid use of live vaccines during NULOJIX treatment
Pregnancy Category C: based on animal data, NULOJIX may cause fetal harm. NULOJIX should not be used in pregnancy unless potential benefit to the mother outweighs potential risk to the fetus. To monitor maternal-fetal outcomes of pregnant women who have received NULOJIX, or whose partners have received NULOJIX, healthcare providers are strongly encouraged to register pregnant patients in the National Transplant Pregnancy Registry (NTPR) by calling 1-877-955-6877
Nursing Mothers: discontinue NULOJIX or nursing, considering importance of NULOJIX to the mother
Most Common Adverse Reactions (e20%): anemia (45%), diarrhea (39%), urinary tract infection (37%), peripheral edema (34%), constipation (33%), hypertension (32%), pyrexia (28%), graft dysfunction (25%), cough (24%), nausea (24%), vomiting (22%), headache (21%), hypokalemia (21%), hyperkalemia (20%), and leukopenia (20%)
NULOJIX is available as 250 mg lyophilized powder for injection, for intravenous use. NULOJIX is a trademark of Bristol-Myers Squibb Company.
About Bristol-Myers Squibb
Bristol-Myers Squibb is a global biopharmaceutical company whose mission is to discover, develop and deliver innovative medicines that help patients prevail over serious diseases. For more information about Bristol-Myers Squibb, visit www.bms.com, or follow us on Twitter at http://twitter.com/bmsnews.
Bristol-Myers Squibb Company
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Source: Bristol-Myers Squibb CompanyCopyright Business Wire 2012