This research study aims to learn more about children and adolescents who have a shiga toxin-producing E. coli (STEC) infection. E. coli is a type of bacteria found in the intestines. Although most types of E. coli are harmless, some produce toxins that can make children sick. This study will assess what type of treatment is best for this infection.

This study is for patients that have already received standard treatments for their cancer and their cancer has gotten worse or returned after their last treatment. The purpose of this study is to learn about the effects of the study drug XL092 when given alone, in combination with atezolizumab, and in combination with avelumab by testing its safety, the ability of your body to accept the drug(s), to measure the drug(s) and/or its break-down products levels in your blood, and how your body reacts to the drug(s). This research study will be the first time XL092 alone or in combination with atezolizumab will be given to people. The study drugs in this research have not been approved by the United States Food and Drug Administration (FDA). There are two parts in this study, a Dose Escalation part and a Cohort Expansion part. The first part of the study was the Dose Escalation phase, when different participants were given different doses of the study drug until the safest, most effective dose was found; this part of the study has been completed. The study is now enrolling to the Cohort Expansion part of this study, where the dose that has been determined to be safe will be given to more participants with different types of cancer. The Dose Escalation part of this study has stopped and the safe dose has been found. This study is now enrolling to the Cohort Expansion part of this study, where the safe dose of the study drug found in the Dose Escalation part will be given to more participants with different types of cancer. Participants will either be assigned to the treatment group that will receive XL092 alone or the treatment group that XL092 in combination with atezolizumab. Which treatment group they are assigned depends on the type of cancer they have. TXL092 is in tablet form taken by mouth. Avelumab will be given as an intravenous (IV) infusion once every 2 weeks at the study site. Atezolizumab will be given as an intravenous (IV) infusion once every 3 weeks at the study site. Total study duration is expected to be about 6 months but participants could be in the study for up to 2 years.

A prospective parallel cohort study generating two groups of participants will be performed in NEPTUNE. The two groups are: (1) Cohort A which includes the FSGS/MCD Cohort; and the MN Cohort, both incipient and prevalent biopsied patients; and (2) Cohort B – a non-biopsy, treatment-naïve, pediatric cohort less than 19 years of age, cNEPTUNE. The sample size for the combined FSGS/MCD and MN Cohorts is a minimum of 800 participants, with a minimum of 375 new patients recruited under Protocol V5.0. The sample size for the second group, cNEPTUNE, will be a minimum of 200 participants. Participants will be recruited into each subgroup concurrently. All participants who meet the inclusion criteria at the participating centers will be enrolled if the participants or their legally authorized representative(s) provide comprehensive written informed consent. A recruit-to-replace strategy will be employed throughout the enrollment phase. Cohort A study visits including screening/eligibility, baseline, biopsy, and follow-up visits, and SMS texting. Study visits for Cohort B, cNEPTUNE, including screening/eligibility, baseline, follow-up visits, and SMS texting.

The purpose of this study is to test to see if you have a certain genetic mutation (changes in DNA) so we can learn more about kidney disease. The study involves one blood and saliva test and takes about 30 minutes. The blood test is to see if you have genetic changes in your DNA of a protein called APOL1. People who have this gene mutation may be at risk of losing their kidney function faster than others. The test won't cost you anything. In fact, if you decide to participate, you will be compensated $45. You should know that the test used to determine if you have an APOL1 genetic mutation is not FDA approved, however the FDA has approved this test for research purposes. If you were to participate in this study and take the blood test, and the result indicated you have this mutation, there may be an opportunity in the future to volunteer in an additional research study where you will receive the treatment. This treatment is designed by Vertex, especially for people with kidney disease from APOL1 mutation.

A device called the "Liposorber LA-15 System" has been approved by the
United States Food and Drug Administration for treating kids with focal
segmental glomerulosclerosis (FSGS). The "Liposorber LA-15 System" can only be used if other treatment options, like drugs, don't work or can't be used,
but the kidneys are still working okay. It can also be used if the subject
has had a kidney transplant and the FSGS comes back after the
transplant. Although the Liposorber System can be used for FSGS, we
are not sure how well the Liposorber System works. So, we are doing this
study to find out how well the treatment works in adults.
In this research study, there will be up to 5 adults who have FSGS
enrolled at MUSC. Subjects will come back for up to 12 treatments over 9
weeks and then 5 visits to their study doctor over the next 2 years.

A device called the "Liposorber LA-15 System" has been approved by the United States Food and Drug Administration for treating kids with focal segmental
glomerulosclerosis (FSGS). The "Liposorber LA-15 System" can only be used if other treatment options, like drugs, don't work or can't be used, but the kidneys are still working okay. It can also be used if the subject has had a kidney transplant and the FSGS comes back after the transplant. Although the Liposorber System can be used for FSGS, we are not sure how well the Liposorber System works. So, we are doing this study to find out how well the treatment works.

In this research study, there will be up to 5 children who have FSGS enrolled at MUSC. Subjects will come back for up to 12 treatments over 9 weeks and then 5 visits to their study doctor over the next 2 years.

Overwhelming evidence exists that some types of proteinuric kidney diseases are caused by the factor(s) present in patients' blood and body fluids. Identification and characterization of such factor(s) would greatly help in better and noninvasive diagnosis of such conditions, development of better therapeutic options, and potentially revealing underlying pathogenic mechanisms.
Owing to the tremendous capabilities of the proteomics facility within the Division of Nephrology we developed experiments that we think will result in significant improvement in our knowledge of major kidney diseases.

Currently, kidney disease affects up to 20% of the US population and is a strong contributor to morbidity and mortality in these patients. Specific therapies and diagnostic tools for kidney disease have been very slow to develop because of the absence of high quality samples and data that can be used for research studies. The purpose of this study is to develop a registry and sample bank called Poseidon (Prevention, Optimizing Safety, Early Intervention and DetectiOn in Nephrology) biobank that can be used for future research. In this study, patients can consent to donating their residual kidney tissue if they undergo a kidney biopsy and blood or urine during routine clinical care procedures. We will also collect blood and urine outside of clinical care.This study will allow biomedical research the ability to obtain specimens from patients with relevant diseases and appropriate clinical data. This study will collect patient demographic, clinical and historical data for a registry and patient samples will be deposited in the Poseidon biobank. Patients do not have to be diagnosed with Kidney Disease to be included in this study.