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Showing posts with label Neoplasia. Show all posts
Showing posts with label Neoplasia. Show all posts

Friday, March 15, 2013

Cancer risk with alemtuzumab following kidney transplantation [feedly]


 
 
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Cancer risk with alemtuzumab following kidney transplantation

Abstract

Alemtuzumab has been employed for induction therapy in kidney transplantation with low rates of acute rejection and excellent graft and patient survival. Antibody induction therapy has been linked to increased vulnerability to cancer. Data regarding malignancy rates with alemtuzumab are limited. We studied 1350 kidney transplant recipients (between 2001 and 2009) at the University of Pittsburgh Starzl Transplant Institute, for post-transplant de novo and recurrent malignancy, excluding non-melanoma skin cancer, among patients receiving alemtuzumab, thymoglobulin, and no induction therapies. Of the 1350 patients, 1002 (74.2%) received alemtuzumab, 205 (15.2%) received thymoglobulin, and 122 (9%) received no induction therapy. After excluding cancers occurring within 60 d post-transplantation, 43 (3.25%) malignancies were observed during a median follow-up time of 4.0 yr. The incidence of malignancy was 5.4% (1.09 per 100 patient-years [PY]) with thymoglobulin, 2.8% (0.74 per 100 PY) with alemtuzumab, and 3.3% (0.66 per 100 PY) with no induction (across all groups; p = 0.2342, thymoglobulin vs. alemtuzumab; p = 0.008). Thus, with the exception of non-melanoma skin cancer which we did not evaluate, alemtuzumab induction was not associated with increased cancer incidence post-kidney transplantation when compared to no induction therapy and was associated with lower cancer incidence when compared to thymoglobulin.


Tuesday, July 26, 2011

Lower Malignancy Rates in Renal Allograft Recipients Converted to Sirolimus-Based, Calcineurin Inhibitor-Free Immunotherapy: 24-Month Results From the CONVERT Trial

Lower Malignancy Rates in Renal Allograft Recipients Converted to Sirolimus-Based, Calcineurin Inhibitor-Free Immunotherapy: 24-Month Results From the CONVERT Trial: "Background. Long-term immunosuppression imposes increased malignancy risk in renal allograft recipients, significantly contributing to overall morbidity and mortality. This study examined malignancy rates in renal allograft recipients at 2 years after conversion to a sirolimus (SRL)-based, calcineurin inhibitor (CNI)-free regimen.
Methods. This open-label, randomized, multicenter study (the CONVERT Trial) randomly assigned 830 patients to SRL conversion (n=555) or CNI continuation (n=275). Patients with history of posttransplant lymphoproliferative disease or known/suspected malignancy within 5 years before screening were excluded. As part of standard safety measurements, subjects were monitored for any malignancy occurrence; both skin and nonskin malignancies were reported, even if the patient discontinued from the therapy. Malignancy rates were analyzed based on exposure time to study drugs (i.e., number of events per 100 person-years of follow-up).

Monday, May 16, 2011

Malignancies after kidney transplantation: a 40-year single-center experience in Korea

Malignancies after kidney transplantation: a 40-year single-center experience in Korea: "

Cancer is a well-recognized complication of kidney transplantation (KT), but nearly almost all data have come from Western countries. The aim of this study was to determine the incidence, type, and risk factors of malignancy after KT in Korea. The 1695 patients who underwent KT between 1969 and 2009 were studied retrospectively.

Friday, April 29, 2011

Screening for renal cancer in recipients of kidney transplants

Screening for renal cancer in recipients of kidney transplants: "
Background. Renal cancer is the most common solid organ cancer in the kidney transplant population with an excess risk ~ 5-fold greater than the general population. It is uncertain whether routine screening for renal cancer is cost-effective. The aim of our study is to estimate the costs and health benefits of ultrasonographic (US) screening for renal cancer in the kidney transplant population.