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Dose-finding Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of SNB-101(SN-38) in Patients With Tumors

ABSTRACT: SNB-101 is a novel nano-particle formulation of SN-38, the active metabolite of irinotecan(CPT-11). Study SNB101P01 is a multicenter, open-label, dose escalation, phase 1 study of SNB 101 with its active ingredient SN-38, in participants with advanced solid tumors. Dose escalation will occur using a modified accelerated titration design (ATD). All participants will receive SNB 101 in different cohorts. SNB 101 will be administered intravenously to participants on day 1 and day 15 of each 28 day treatment cycle until progressive disease, unacceptable toxicity, death, or withdrawal of consent, whichever occurs first. A Safety Review Committee will determine dose escalation, de-escalation, and modification and the MTD/RP2D based on DLTs and other safety information.

DISEASE(S): Ovarian Cancer,Pancreas Cancer,Gastric Cancer,Colorectal Cancer,Small Cell Lung Carcinoma,Head And Neck Cancer,Small-cell Lung Cancer,Pancreatic Neoplasms,Breast Cancer,Solid Tumors

PROVIDER: 2358597 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Implications for neuroprotection in Parkinson's disease Parkinson’s disease and its characteristic symptoms are thought to arise from the progressive degeneration of specific midbrain dopamine (DA) neurons. In humans, DA neurons of the substantia nigra (SN) and their projections to the striatum show selective vulnerability, while neighboring DA neurons of the ventral tegmental area (VTA) are relatively spared from degeneration. This pattern of cell loss is mimicked in humans, primates, and certain rodents by the neurotoxin MPTP. In this study, we aimed to test the hypothesis that there are factors in the VTA that are potentially neuroprotective against MPTP and that these factors change over time. We have found a differential transcriptional response within the cells of the SN and VTA to sustained exposure to a low dose of MPTP. Specifically, the VTA has increased expression of 148 genes as an early response to MPTP and 113 genes as a late response to MPTP toxicity. This response encompasses many areas of cellular function, including protein regulation (Phf6) and ion/metal regulation (PANK2, Car4). Notably, these responses were largely absent from the cells of the SN. Our data show a clear dynamic response in maintaining the homeostasis and viability of the neurons in the VTA that is lacking in the SN after neurotoxin challenge. We used microarrays to analyze the differential response of the substantia nigra (SN) and ventral tegmental area (VTA) to a chronic low dose of the neurotoxin MPTP. Transgenic hTH-GFP mice were treated with MPTP (4mg/kg) for either 2 or 10 days. Control mice were given an equal volume of saline for 10 days. Dopamine neurons from the substantia nigra and ventral tegmental areas of control and MPTP treated animals were laser captured. The RNA was isolated and processed for microarray hybridization. Each group had three biological replicates, for a total of 18 samples. Three each in the following: Control SN, Control VTA, 2 day MPTP SN, 2 day MPTP VTA, 10 day MPTP SN, 10 day MPTP VTA. Samples were log2 transformed and RMA normalized using Agilent Genespring 10.0 GX.

Dataset Information

Dose-finding Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of SNB-101(SN-38) in Patients With Tumors

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