Clinical Trials

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14 studies in Division of Nephrology and Hypertension in Rochester, MN.

  1. A Phase 2 Open-label Multi-centre Study to Evaluate the Efficacy and Safety of Oxabact® to Reduce Plasma Oxalate in Subjects With Primary Hyperoxaluria Who Are on Dialysis
    Rochester, Minn. View Summary

    A Phase 2 Open-label Multi-centre Study to Evaluate the Efficacy and Safety of Oxabact® to Reduce Plasma Oxalate in Subjects With Primary Hyperoxaluria Who Are on Dialysis

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    The purpose of this study is to determine if Oxalobacter formigenes is effective at lowering plasma oxalate levels in patients with primary hyperoxaluria who are on dialysis.

    NCT ID:

    NCT02000219

    IRB Number:

    13-009042

    Who can I contact for additional information about this study?

    Rochester: Tamara Evans 507-284-1004
                        


  2. EARLY DETECTION OF BROKEN HEARTS IN CANCER PATIENTS: BEVACIZUMAB, SUNITINIB AND HEART FAILURE
    Rochester, Minn. View Summary

    EARLY DETECTION OF BROKEN HEARTS IN CANCER PATIENTS: BEVACIZUMAB, SUNITINIB AND HEART FAILURE

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    A total of 100 individuals (50 receiving BVZ and 50 receiving Sunitinib) will be prospectively enrolled . (80 at Mayo Clinic [40 receiving BVZ and 40 receiving Sunitinib] and 20 at St. Boniface General Hospital (SBGH)). Patients receiving either BVZ 5mg/kg iv every 2-3 weeks for colorectal cancer or Sunitinib 50 mg po daily for advanced Metastatic renal cell carcinoma will be screened for potential eligibility in the study. For metastatic renal cancer treatments, Sunitinib doses are (oral) 50 mg once a day for 4 weeks followed by a two week off period. The six week cycle is then repeated. In case of toxicities observed with the dose, a 25% reduction in the daily dose during the "on" period is performed (37.5 mg). Patients will be studied at 7 time points: i) Baseline; ii) Day 1; iii) Day 5; iv) 4-6 weeks ; v) 3 months; vi) 6 months after the initiation of both drugs (BVZ and Sunitinib) ; and vii) 12 months after the initiation of BVZ drug only (Figure 1). Three visits (baseline, 4-6 weeks , and 3 months) are considered part of standard clinical care, and four visits are for research. At each visit, in addition to standard of care provided by the Oncologist, blood will be drawn to measure high sensitivity troponin-T (hsTnT) and Natriuretic-proBNP. The patients will also undergo a TTE with tissue velocity imaging (TVI), strain and left ventricular opacification (LVO) and myocardial perfusion at each time point. EndoPAT test will also be performed at baseline, and 3 months. The baseline, 4-6 weeks, and 3 month visits will be part of your standard clinical care and followup.

    NCT ID:

    NCT02086695

    IRB Number:

    12-005362

    Who can I contact for additional information about this study?

    Rochester: Sharon L Mulvagh, M.D. 507-284-9601
                        


  3. Define in Humans With Compensated CHF and Renal Dysfunction, the Modulating Action of Chronic AT1 Receptor Blockade in Addition to ACE Inhibition on Cardiorenal and Humoral Function
    Rochester, Minn. View Summary

    Define in Humans With Compensated CHF and Renal Dysfunction, the Modulating Action of Chronic AT1 Receptor Blockade in Addition to ACE Inhibition on Cardiorenal and Humoral Function

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    To advance our understanding of the mechanisms of human cardiorenal syndrome with emphasis upon the interaction of diuretic therapy and the renal-angiotensin-aldosterone -system and cGMP pathway. The belief is that the chronic AT1 receptor blockade in subjects with compensated CHF and renal dysfunction will improve renal function with increased sodium excretion, glomerular filtration rate and effective renal plasma flow and renal function reserve as compared to the response of placebo-treated subjects.

    NCT ID:

    NCT01678794

    IRB Number:

    09-003284

    Who can I contact for additional information about this study?

    Rochester: Lynn Harstad 507-284-4838
                        


  4. Pasireotide LAR in Severe Polycystic Liver Disease
    Rochester, Minn. View Summary

    Pasireotide LAR in Severe Polycystic Liver Disease

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    Pasireotide (SOM230) is a novel multi-receptor-targeted analog that has high affinity for four of the five SST receptor subtypes (SSTr1, SSTr2, SSTr3 and SSTr5); it has a 40-fold higher affinity and 158-fold higher functional activity for the SST5 receptor than octreotide. Because of its broad receptor binding profile, pasireotide may be more potent in Polycystic Liver Disease (PLD) than octreotide. In this randomized double blind placebo controlled trial the investigators will compare SOM230 treatment to placebo for 12 months in patients with PLD. The primary endpoints will be assessed at 12 months and patients receiving placebo then crossed over to SOM230, permitting all participants to receive SOM230 for the subsequent two years. Magnetic resonance imaging (MRI) will be used to assess liver volume - the primary endpoint, which will be assessed at baseline, end of years 1 and 3. This study will assess the efficacy and safety of SOM230 in reducing total liver volume and improving quality of life over 12 months. (The investigators will not be assessing efficacy at 24 months.) The therapy way be effective in PLD but also may prove to be effective for many more patients with Polycystic Kidney Disease (PKD) which will be evaluated using eGFR and kidney volume using MRI.

         The investigators plan to add other sub-sites in other locations.

    NCT ID:

    NCT01670110

    IRB Number:

    11-007405

    Who can I contact for additional information about this study?

    Rochester: Angela Ihrke 507-538-2902
                                             Marie C Hogan, MD, PhD 507-284-2500
             
             
           
  5. Biobank Protocol, Rare Diseases Clinical Research Network
    Rochester, Minn. View Summary

    Biobank Protocol, Rare Diseases Clinical Research Network

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    Biologic samples will be stored in the biobank from well characterized patients with primary hyperoxaluria, cystinuria, APRT deficiency, and Dent disease, and from their family members, for use in future research. This will help to advance our understanding of disease expression and the factors associated with kidney injury in these four diseases with the overall goal of developing new treatments to preserve kidney function and reduce nephrocalcinosis and stone formation.

    NCT ID:

    NCT02026388

    IRB Number:

    11-005413

    Who can I contact for additional information about this study?

    Rochester: Alicia M Meek 507-255-4347
                        Barbara M Seide 507-255-0387


  6. Influence of Hydroxyproline Plasma Concentration on Its Metabolism to Oxalate
    Rochester, Minn. View Summary

    Influence of Hydroxyproline Plasma Concentration on Its Metabolism to Oxalate

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    The purpose of this study is to determine the contribution of hydroxyproline metabolism to urinary oxalate and glycolate excretion in patients with primary hyperoxaluria. Oxalic acid (COOH)2 is an end product of metabolism that is synthesized mainly in the liver. We have estimated that 10 - 20 mg is synthesized in the body of healthy adults each day (1). The main precursor of oxalate is glyoxylate (CHO•COOH). The bulk of the glyoxylate formed is normally transaminated to glycine (NH2•CH2•COOH) by alanine: lyoxylate aminotransferase (AGT) or reduced to glycolate (CHOH•COOH) by glyoxylate reductase (GR). Less than 10% of the glyoxylate is oxidized to oxalate by lactate dehydrogenase (LDH). In individuals with the disease, primary hyperoxaluria, AGT, GR, or HOGA enzyme is deficient and the amount of oxalate synthesized by the liver increases to 80 - 300 mg per day. The increased oxalate excreted in urine can cause damage to kidney tissue. Calcium oxalate stones may form in the kidney or calcium oxalate crystals may deposit in renal tubules and the renal parenchyma (nephrocalcinosis). An increased rate of oxalate synthesis could also contribute to idiopathic calcium oxalate stone disease. Understanding the pathways of endogenous oxalate synthesis and identifying strategies that decrease oxalate production could be beneficial for individuals with these diseases. Hydroxyproline is the primary source of glyoxylate identified in the body (2). Daily collagen turnover of bone results in the formation of 300 - 450 mg of hydroxyproline, which cannot be re-utilized by the body and is broken down. This metabolism yields 180 - 250 mg of glyoxylate. Further hydroxyproline is obtained from the diet, primarily from meat and gelatin-containing products. The bulk of the glyoxylate formed is converted to glycine by the liver enzyme AGT, some to glycolate and a small amount to oxalate. The proportion of these metabolites is not known with any certainty. In this study, a quantitative estimate of the metabolites formed will provide estimates of the contribution of hydroxyproline turnover to daily oxalate production. These experiments will provide valuable information for the future assessment of the contribution of hydroxyproline metabolism to oxalate production in individuals with primary hyperoxaluria.

    NCT ID:

    NCT02038543

    IRB Number:

    13-000150

    Who can I contact for additional information about this study?

    Rochester: Julie B Olson, RN 800-270-4637
                        


  7. An Open, Non-interventional, Retrospective, Comparative, Multicenter Follow-up Study in Patients Included in the Previously Completed Clinical Study pc b305/04, to Assess a Longer-term Recurrence Rates in Patients After Hexvix® (Cysview®)Fluorescence Cystoscopy/Turb or White Light Cystoscopy/TURB
    Rochester, Minn. View Summary

    An Open, Non-interventional, Retrospective, Comparative, Multicenter Follow-up Study in Patients Included in the Previously Completed Clinical Study pc b305/04, to Assess a Longer-term Recurrence Rates in Patients After Hexvix® (Cysview®)Fluorescence Cystoscopy/Turb or White Light Cystoscopy/TURB

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    A previously completed pivotal clinical study PC B305/04 demonstrated reduced recurrence rates for patients with papillary bladder cancer who underwent Hexvix (Cysview) and white light cystoscopy and transurethral resection (TURB) of the bladder compared to patients who underwent white light cystoscopy and TURB alone. The present study is intended to investigate whether the improved initial detection and resection of bladder cancer lesions in patients with non-muscle invasive bladder cancer with Hexvix (Cysview) fluorescence cystoscopy/TURB will also lead to a longer-term reduction in recurrences compared to standard white light cystoscopy/TURB.

    NCT ID:

    NCT01166230

    Who can I contact for additional information about this study?

  8. MSC for Occlusive Disease of the Kidney
    Rochester, Minn. View Summary

    MSC for Occlusive Disease of the Kidney

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    To determine the safety and toxicity of intra-arterial infused autologous adipose derived mesenchymal stromal (stem) cells in patients with vascular occlusive disease of the kidney.

    NCT ID:

    NCT01840540

    IRB Number:

    12-009298

    Who can I contact for additional information about this study?

    Rochester: Beverly K Tietje, Associate 507-255-0401
                                             
             
             
           
  9. BIIB023 for Subjects with Lupus Nephritis
    Rochester, Minn. View Summary

    BIIB023 for Subjects with Lupus Nephritis

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    Survival of patients with systemic lupus erythematosus (SLE) has improved greatly in the last decade, but lupus nephritis remains an important cause of morbidity and mortality in these patients. Recent studies have shown that we current therapies up to 50% of the patients with lupus nephritis fail to reach primary renal remission outcomes.  Thus, there is a need for more effective therapies in patients with lupus nephritis.

    The primary objective of the study is to assess the efficacy of BIIB023, an inhibitor of TWEAK (TNF-related weak inducer of apoptosis), as an add-on treatment to standard therapy compared with placebo in combination with standard therapy in the treatment of subjects with active, biopsy-proven lupus nephritis.

    There is substantial therapeutic rationale for inhibiting TWEAK in lupus nephritis: blocking the binding of TWEAK to Fn14 (fibroblast growth factor-inducible 14), BIIB023 attenuates TWEAK/Fn14 signaling and the downstream cellular responses of this signaling cascade; TWEAK induces the expression of proinflammatory mediators in both mesangial cells and podocytes, as well as in renal tubules, which may promote glomerulonephritis and tubulointerstitial inflammation. Since inflammation is considered to be a key mediator of tissue damage, TWEAK may promote tissue damage in lupus nephritis by promoting the recruitment of inflammatory infiltrates. TWEAK also acts in concert with other cytokines to promote renal tubular cell death. Thus, TWEAK may play an important pathogenic role in glomerulonephritis by promoting a local inflammatory environment and inducing tissue damage leading to progression to both glomerulosclerosis and tubulointerstitial fibrosis.

    Elevated levels of urinary TWEAK are observed in subjects with active lupus nephritis. Analyses of urinary TWEAK demonstrated that urinary TWEAK levels in biopsy-proven lupus nephritis patients are significantly higher than those found in SLE non-lupus nephritis patients and healthy controls. A significant association was found between urinary TWEAK levels and lupus nephritis disease activity as measured by the renal Systemic Lupus Erythematosus Disease Activity Index. Urinary TWEAK levels are also higher in patients undergoing a renal flare as compared with those with stable chronic renal disease and in patients undergoing renal as opposed to non-renal flare.

    Because TWEAK may promote multiple pathogenic activities locally in the kidney, it represents a promising target for therapeutic intervention. Inhibition of the TWEAK/Fn14 pathway with anti-TWEAK monoclonal antibodies has proven effective in multiple animal models of inflammatory diseases, suggesting that TWEAK blockade by BIIB023 may be clinically beneficial in lupus nephritis.

    The lack of a prominent impact on normal tissue homeostasis and adaptive immunity suggest that anti-TWEAK agents may have an attractive profile with respect to susceptibility to opportunistic infections and may therefore be combined with existing immunosuppressive therapies for LUPUS NEPHRITIS to achieve a novel more effective therapeutic approach without increased risk of infection.

    IRB Number:

    11-008028

    Who can I contact for additional information about this study?

    Fernando C. Fervenza, M.D., 507-266-7083, fervenza, fernando @mayo.edu
    Shirley Jennison, 507-255-0231, jennison.shirley@mayo.edu
  10. Correlation of Disease Expression With Specific Genetic Mutations in Primary Hyperoxaluria
    Rochester, Minn. View Summary

    Correlation of Disease Expression With Specific Genetic Mutations in Primary Hyperoxaluria

    Location:

    Rochester, Minn.

    Trial status:

    Open for Enrollment

    Why is this study being done?

    During your study visit, we will draw one tube, about two teaspoonfuls (1 to 1 ½ teaspoons for children), of blood from your arm to obtain white blood cells. These white blood cells will be used as a source of DNA for genetic testing. We will use the isolated DNA to try to identify the gene that is defective in Primary Hyperoxaluria by comparing it with the structure of genes in normal individuals, patients with Primary Hyperoxaluria, and family members of Primary Hyperoxaluria patients. In family members of primary hyperoxaluria patients, a 24 hour urine test may also be collected.

    NCT ID:

    NCT00589225

    IRB Number:

    434-03

    Who can I contact for additional information about this study?

    Rochester: Barbara Seide 507-255-0387
                        


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