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A Phase 1 Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of ManNAc in Subjects With Primary Podocyte Diseases

NCT02639260 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2023-02-24

No results posted yet for this study

Summary

Three kidney diseases that affect both children and adults are minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS) and membranous nephropathy (MN). These diseases are characterized by proteinuria (protein in the urine) and in the cases of FSGS and membranous nephropathy, a tendency to progressive scarring of the glomerulus (the filtering units of the kidneys) that leads to end-stage kidney disease. Several therapies are available for these diseases, but these therapies do not provide lasting reduction in proteinuria for many subjects. In the current study, carried out at the NIH Clinical Center, we are testing a new therapy, ManNAc. ManNAc is a naturally occurring uncharged sugar that cells use to produce negatively charged sialic acid. Kidney cells attach sugars such as sialic acids to proteins and lipids (resulting in glycans), and these assist in cell function. Mouse models of the inherited muscle disease GNE myopathy, which is due to sialic acid deficiency on muscle glycans, responded favorably to oral ManNAc therapy and a clinical trial of ManNAc is ongoing in GNE myopathy subjects. There is evidence that some subjects with MCD, FSGS or MN do not put enough sialic acids on glomerular proteins and so ManNAc therapy may increase sialic acid production and sialylation of glomerular proteins in these subjects. For the present study, we will recruit 12 subjects who have MCD, FSGS or MN. Each subject will stay at the NIH Clinical Center for 11 days to receive oral ManNAc. The primary purposes of the study are to determine: 1) the safety of ManNAc in subject s with kidney disease; and 2) the ManNAc and sialic acid metabolism related to ManNAc in subjects with kidney disease. Concentrations of ManNAc and sialic acid will be measured in plasma at various times before and after dosing. If this study suggests that ManNAc is safe in subject with kidney disease, the results will be used to plan a longer-term study to determine whether it is effective at reducing proteinuria....

Conditions

Interventions

DRUG

N-acetyl D-mannosamine

dose escalation

Sponsors & Collaborators

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

    lead NIH

Principal Investigators

  • Jeffrey B Kopp, M.D. · National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-07-07
Primary Completion
2018-06-05
Completion
2018-06-05
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02639260 on ClinicalTrials.gov