Korthals M.,Heinrich Heine University Dusseldorf |
Korthals M.,Otto Von Guericke University of Magdeburg |
Sehnke N.,Heinrich Heine University Dusseldorf |
Kronenwett R.,Heinrich Heine University Dusseldorf |
And 6 more authors.
Biology of Blood and Marrow Transplantation | Year: 2013
The prognostic relevance of minimal residual disease (MRD) in patients with multiple myeloma is still an open question. In bone marrow, the level of residual myeloma cells is associated with treatment outcome, but the role of clonotypic cells in the peripheral blood (PB) for the prognosis of patients is not identified yet. In this study, we retrospectively analyzed MRD by quantitative real-time IgH-PCR (IgH-qPCR) in the PB of 42 patients undergoing high-dose therapy followed by autologous PB stem cell transplantation as first-line therapy for multiple myeloma. The MRD level of PB samples was in median 40-fold lower than in bone marrow samples, collected on the same day, with a wide intra- and interindividual variation (range, .4- to 4628-fold). The presence or absence of detectable MRD levels in PB did not correlate with the serological remission status. Still, patients with negative PCR results in PB 3 months after high-dose therapy and PB stem cell transplantation had lower International Staging System stage (P= .01), lower levels of β2-microglobulin (P= .02), higher hemoglobin levels (P= .01), and a prolonged event-free (median, 15 versus 4 months; P= .004) and overall (median, 52 versus 17 months; P= .03) survival. Importantly, by sequential monitoring of clonotypic cells in PB, in 19 of 29 patients (66%) with progressive disease, an increase of the 2IgH/β-actin ratio of at least 1 log step could be detected in median 4 months (range, .8 to 13 months) before the relapse was diagnosed on the basis of the European Group for Blood and Marrow Transplantation criteria. These patients with a molecular relapse in PB before a serological relapse had a significantly shorter overall survival than other patients (median, 17 months versus median not reached, P= .02). In conclusion, IgH-qPCR is a sensitive technique for the detection of clonotypic cells in PB, which precede clinical relapse. Future studies are needed to evaluate whether these circulating tumor cells play a role in promoting disease recurrence. © 2013 American Society for Blood and Marrow Transplantation.
Agency: Cordis | Branch: H2020 | Program: SME-1 | Phase: PHC-12-2015-1 | Award Amount: 71.43K | Year: 2015
SIVIDON established a prototype diagnostic assay - the ChemoPredict test - to stratify high-risk breast cancer patients and to help in deciding whether to treat the patient with standard anthracycline-based chemotherapy without taxane or taxane-containing regimens. ChemoPredict was clinically validated in a large clinical phase III trial (FinHer) with 919 patients using a prospective-retrospective approach. The existing training and validation studies of ChemoPredict provided evidence that the assay can reduce the number of taxane-based chemotherapies within the tests target group by about 50% without impairment of outcome of the patients. Thus, the use of the assay in breast cancer care will result in a more specific use of taxanes and a reduction of overtreatment thus avoiding serious side effects in patients and saving costs for the health care system. SIVIDONs aim for the overall innovation project is to extend clinical and analytical validation data, to develop ChemoPredict as a CE-marked IVD test according to IVD directive 98/79/EC and to bring this test as a tool for personalized medicine into the European market. The objective of the feasibility study is to generate an elaborated business plan including detailed market analyses for ChemoPredict. Several key opinion leaders will be interviewed to get their perspective on the application, the inclusion into clinical guidelines and market entrance of the innovative predictive test. Phase I will be also used to decide on an extended clinical validation strategy to ensure that the ChemoPredict assay exhibits the highest clinical evidence level. Advisory boards will be initiated, opportunities for entering clinical guidelines will be judged and reimbursement concepts in European countries will be assessed. Regulatory issues will be comprehensively evaluated to decide on the best product development strategy, a detailed product development plan will be generated and phase 0 development strategies will be started.
Sividon Diagnostics | Date: 2015-02-26
diagnostic test kits used to determine if a patient with primary breast cancer requires chemotherapy for treatment.
Sividon Diagnostics | Date: 2012-07-30
A method for predicting a response to and/or benefit of chemotherapy, including neoadjuvant chemotherapy, in a patient suffering from or at risk of developing recurrent neoplastic disease, in particular breast cancer, said method comprising the steps of: (a) determining in a tumor sample from said patient the RNA expression levels of the following 8 genes: UBE2C, RACGAP1, DHCR7, STC2, AZGP1, RBBP8, IL6ST, and MGP, indicative of a response to chemotherapy for a tumor, or (b) determining in a tumor sample from said patient the RNA expression levels of the following 8 genes: UBE2C, BIRC5, DHCR7, STC2, AZGP1, RBBP8, IL6ST, and MGP; indicative of a response to chemotherapy for a tumor (c) mathematically combining expression level values for the genes of the said set which values were determined in the tumor sample to yield a combined score, wherein said combined score is predicting said response and/or benefit of chemotherapy.
Sividon Diagnostics | Date: 2011-03-29
The present invention relates to methods, kits and systems for the prognosis of the disease outcome of breast cancer, said method comprising: