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Träfflista för sökning "WFRF:(Yachnin Jeffrey) srt2:(2010-2014)"

Sökning: WFRF:(Yachnin Jeffrey) > (2010-2014)

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  • Eriksson, Fredrik, et al. (författare)
  • DNA vaccine coding for the rhesus prostate specific antigen delivered by intradermal electroporation in patients with relapsed prostate cancer
  • 2013
  • Ingår i: Vaccine. - 0264-410X .- 1873-2518. ; 31:37, s. 3843-3848
  • Tidskriftsartikel (refereegranskat)abstract
    • We tested safety, clinical efficacy and immunogenicity of a DNA vaccine coding for rhesus prostate specific antigen (PSA) delivered by intradermal injection and skin electroporation. Fifteen patients with biochemical relapse of prostate cancer without macroscopic disease participated in this phase I study. Patients were started on a 1 month course of androgen deprivation therapy (ADT) prior to treatment. Vaccine doses ranged from 50 to 1600 mu g. Study subjects received five vaccinations at four week intervals. All patients have had at least one year of follow-up. No systemic toxicity was observed. Discomfort from electroporation did not require analgesia or topical anesthetic. No clinically significant changes in PSA kinetics were observed as all patients required antiandrogen therapy shortly after completion of the 5 months of vaccination due to rising PSA. Immunogenicity, as measured by T-cell reactivity to the modified PSA peptide and to a mix of overlapping PSA peptides representing the full length protein, was observed in some patients. All but one patient had pre-study PSA specific T-cell reactivity. ADT alone resulted in increases in T-cell reactivity in most patients. Intradermal vaccination with skin electroporation is easily performed with only minor discomfort for the patient. Patients with biochemical relapse of prostate cancer are a good model for testing immune therapies.
  • Lehmann, S, et al. (författare)
  • Targeting p53 in vivo : a first-in-man study with the p53-targeting compound APR-246 in refractory hematologic malignancies and prostate cancer
  • 2012
  • Ingår i: Journal of Clinical Oncology. - : American Society of Clinical Oncology. - 0732-183X .- 1527-7755. ; 30:29, s. 3633-3639
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: APR-246 (PRIMA-1MET) is a novel drug that restores transcriptional activity of unfolded wild-type or mutant p53. The main aims of this first-in-human trial were to determine maximum-tolerated dose (MTD), safety, dose-limiting toxicities (DLTs), and pharmacokinetics (PK) of APR-246.PATIENTS AND METHODS: APR-246 was administered as a 2-hour intravenous infusion once per day for 4 consecutive days in 22 patients with hematologic malignancies and prostate cancer. Acute myeloid leukemia (AML; n = 7) and prostate cancer (n = 7) were the most frequent diagnoses. Starting dose was 2 mg/kg with dose escalations up to 90 mg/kg.RESULTS: MTD was defined as 60 mg/kg. The drug was well tolerated, and the most common adverse effects were fatigue, dizziness, headache, and confusion. DLTs were increased ALT/AST (n = 1), dizziness, confusion, and sensory disturbances (n = 2). PK showed little interindividual variation and were neither dose nor time dependent; terminal half-life was 4 to 5 hours. Tumor cells showed cell cycle arrest, increased apoptosis, and upregulation of p53 target genes in several patients. Global gene expression analysis revealed changes in genes regulating proliferation and cell death. One patient with AML who had a p53 core domain mutation showed a reduction of blast percentage from 46% to 26% in the bone marrow, and one patient with non-Hodgkin's lymphoma with a p53 splice site mutation showed a minor response.CONCLUSION: We conclude that APR-246 is safe at predicted therapeutic plasma levels, shows a favorable pharmacokinetic profile, and can induce p53-dependent biologic effects in tumor cells in vivo.
  • Maison-Blanche, Pierre, et al. (författare)
  • An open-label study to investigate the cardiac safety profile of cabazitaxel in patients with advanced solid tumors
  • 2014
  • Ingår i: Cancer Chemotherapy and Pharmacology. - 0344-5704 .- 1432-0843. ; 73:6, s. 1241-1252
  • Tidskriftsartikel (refereegranskat)abstract
    • This study assessed the cardiovascular safety of cabazitaxel, based on thorough evaluation of QT and non-QT variables, and the relationship between pharmacokinetic and pharmacodynamic electrocardiographic (ECG) profiles and the occurrence of Grade a parts per thousand yen3 cardiovascular adverse events. Patients with advanced solid tumors were treated with cabazitaxel 25 mg/m(2) every 3 weeks. Digital ECG recordings were obtained during Cycle 1 over 24 h after dosing. The primary end point was effect of cabazitaxel on QT interval corrected by the Fridericia formula (QTcF). Secondary end points were additional ECG parameters (QT, PR and QRS intervals, and heart rate), plasma pharmacokinetics of cabazitaxel and overall clinical safety. The pharmacodynamic (ECG) population included 94 patients. In 63 patients with a full 24-h ECG evaluation, the maximum upper bound of 90 % confidence interval (CI) for mean QTcF change from baseline was 7.46 ms (mean 4.8 ms), occurring at 1 h 30 min post-infusion. The slope of QTcF change from baseline versus cabazitaxel concentration was slightly negative (-0.012 [95 % CI -0.017; -0.008], equivalent to a 1.2 ms decrease per 100 ng/mL increase in cabazitaxel concentration). For non-QT variables, no effect was noted. No Grade a parts per thousand yen3 cardiac adverse events were observed; Grade a parts per thousand yen3 hypotension and lymphocele occurred in two patients and one patient, respectively. These results suggest that cabazitaxel has no clinically significant cardiovascular adverse effects in patients with advanced solid tumors.
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