This study is in progress, not accepting new patients

Atrasentan in Patients With Proteinuric Glomerular Diseases

a study on IgA Nephropathy Focal Segmental Glomerulosclerosis Alport Syndrome Diabetes Kidney Disease Glomerulonephritis

Summary

Eligibility
for people ages 18 years and up (full criteria)
Location
at UCLA
Dates
study started
completion around
Principal Investigator
by Niloofar Nobakht (ucla)
Headshot of Niloofar Nobakht
Niloofar Nobakht

Description

Summary

The AFFINITY Study is a phase 2, open-label, basket study to evaluate the efficacy and safety of atrasentan in patients with proteinuric glomerular disease who are at risk of progressive loss of renal function.

Official Title

A Phase 2, Open-Label, Basket Study of Atrasentan in Patients With Proteinuric Glomerular Diseases

Details

The AFFINITY Study is a phase 2, open-label, basket study to evaluate the efficacy and safety of atrasentan in patients with proteinuric glomerular disease who are at risk of progressive loss of renal function. Cohorts will consist of patients with:

Additional cohorts may be added as data is available.

Approximately 100 patients will be enrolled in the study. Approximately 20 patients will be enrolled in each cohort to receive 0.75 mg atrasentan QD for 52 weeks. The study will also evaluate efficacy and safety of 1.5 mg atrasentan QD in FSGS subjects who received 0.75 mg atrasentan and it was well tolerated.

Patients will be allowed to continue into treatment extension and receive oral atrasentan QD for up to an additional 84 weeks (total maximum treatment of 188 weeks),

The primary objective of the study is to evaluate the effect of atrasentan on proteinuria (for IgAN, FSGS, and Alport syndrome patients) or albuminuria (for DKD patients) levels. Exploratory objectives include evaluating the change in kidney function over time as measured by eGFR, safety and tolerability. To facilitate study participation over this time period, where allowed by local regulations, options for remote study visits using telemedicine and home health may be offered.

Keywords

IgA Nephropathy, Focal Segmental Glomerulosclerosis, Alport Syndrome, Diabetic Kidney Disease, Diabetic Nephropathy Type 2, Immunoglobulin A Nephropathy, Kidney Diseases, Diabetic Nephropathies, IGA Glomerulonephritis, Hereditary Nephritis, Atrasentan, Atrasentan 0.75 mg, Atrasentan 1.5 mg

Eligibility

You can join if…

Open to people ages 18 years and up

  • Age 18 years and older for patients in the IgAN, FSGS, and Alport Syndrome cohorts
  • Age 18-70 years for patients in the DKD cohort
  • Receiving a maximally tolerated dose of RAS inhibitor therapy (ACEi or ARB) that has been stable for at least 12 weeks.
  • For patients enrolling in IgAN Cohort:
    1. Biopsy-proven IgA nephropathy
    2. UPCR between 0.5 to less than 1.0 g/g
    3. Screening eGFR ≥ 30 mL/min/1.73 m2
  • For patients enrolling in FSGS Cohort:
    1. Biopsy-proven FSGS or documented genetic mutation in a podocyte protein associated with FSGS
    2. UPCR > 1.0 g/g
    3. Screening eGFR ≥ 30 mL/min/1.73 m2
    4. Subjects receiving systemic corticosteroids or other immunosuppressants must be on a stable dose for at least 12 weeks.
    5. BMI ≤ 40 kg/m2
  • For patients enrolling in Alport syndrome Cohort:
    1. Diagnosis of Alport syndrome by genetic testing
    2. UPCR > 0.5 g/g
    3. Screening eGFR ≥ 30 mL/min/1.73 m2
  • For patients enrolling in DKD Cohort:
    1. Diagnosis of type 2 diabetes mellitus
    2. UACR ≥ 0.5 g/g
    3. Screening eGFR ≥ 45 mL/min/1.73 m2
    4. Receiving a stable dose of SGLT2 inhibitor for at least 12 weeks
  • Willing and able to provide informed consent and comply with all study requirements

You CAN'T join if...

  • Current diagnosis of another cause of chronic kidney disease or another primary glomerulopathy.
  • History of kidney transplantation or other organ transplantation.
  • Except for FSGS patients, use of systemic immunosuppressant medications, such as steroids, for more than 2 weeks in the past 3 months.
  • Blood pressure above 150 mmHg systolic or 95 mmHg diastolic as evaluated by the Investigator.
  • History of heart failure or a previous hospital admission for fluid overload.
  • Clinically significant history of liver disease as assessed by the Investigator.
  • Hemoglobin below 9 g/dL as measured by the Investigator or blood transfusion for anemia within the past 3 months.
  • Clinical diagnosis of nephrotic syndrome
  • Malignancy within the past 5 years. Exception to the criteria include nonmelanoma skin cancer and curatively treated cervical carcinoma in situ.
  • For women, pregnant, breastfeeding, or intent to become pregnant during the study.
  • For men, intent to father a child or donate sperm during the study.
  • Recently received an investigational agent.
  • Clinically significant unstable or uncontrolled medical condition as assessed by the Investigator.

Locations

  • Kidney Disease Medical Group
    Glendale California 91204 United States
  • Academic Medical Research Institute
    Los Angeles California 90022 United States
  • Stanford University
    Stanford California 94305 United States

Lead Scientist at University of California Health

  • Niloofar Nobakht (ucla)
    HS Associate Clinical Professor, Medicine. Authored (or co-authored) 32 research publications. Research interests: Hypertension · Kidney Disease · Women's health · Wellness

Details

Status
in progress, not accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Chinook Therapeutics U.S., Inc.
ID
NCT04573920
Phase
Phase 2 research study
Study Type
Interventional
Participants
About 103 people participating
Last Updated