Together, we can reach higher summits in IgAN research.

Are you interested in being a part of an IgA Nephropathy clinical trial that is evaluating a new investigational drug? If so, consider joining the RAINIER Study today and help advance IgA nephropathy research.

See if You May Qualify!

What is the RAINIER Study?

RAINIER is a clinical research study for adults who have been diagnosed with IgA Nephropathy (IgAN) by kidney biopsy. This study is evaluating the safety and effectiveness of an investigational drug and how it might work to preserve kidney function.

Who is eligible to join the RAINIER Study?

Study participants may be able to join the study if they meet the following requirements:

18 years or older

Confirmed diagnosis of IgAN by biopsy

Stable doses of standard IgAN treatments (if prescribed)

Other study requirements will apply.

What can I expect if I join the RAINIER Study?

Study participation is a little longer than 2 years. You will attend in-person study visits to receive the study treatment and participate in study assessments each month. Study participants can expect the following:

Review & Sign the Informed Consent Form
The Informed Consent Form (ICF) contains information about the study including its goals, duration, benefits, risks, tests and procedures.
Screening Period (up to 6 weeks)
You will receive study health assessments to confirm if you qualify for the study. These assessments include physical exam, medical history review, electrocardiogram (ECG), vital signs, blood test, and urine test.
Study Treatment Period
(Every 4 weeks over 2 Years)
Participants are assigned at random to receive study treatment which will be povetacicept (the investigational drug) or placebo. The placebo looks identical to povetacicept but does not have active ingredients. You will receive an injection of your assigned study treatment every 4 weeks for a total of 26 doses.
Follow-up Period (12 Weeks)
Your final study assessment will be 12 weeks after your last dose.

    Participation in a clinical study is voluntary. You can ask any questions you have and may leave the study at any time, for any reason.

    Interested in joining the RAINIER Study?

    Take the pre-screener to see if you may qualify!

    Take the Pre-Screener

    About the Investigational Drug

    What is the investigational drug?

    The investigational drug, povetacicept, is an injection received in the arm, thigh, or belly every 4 weeks. Povetacicept might protect the kidneys by blocking 2 proteins (BAFF and APRIL) that cause IgAN inflammation.

    Will I receive the investigational drug?

    You will be assigned at random to a study treatment (povetacicept or placebo). The placebo looks identical to povetacicept, but it does not contain any active ingredients. Placebos help researchers measure true effects of the investigational drug from perceived effects.

    What is an “investigational drug”?

    Investigational means the investigational drug is not approved by regulatory authorities like the US Food and Drug Administration (FDA), and it can only be used in clinical research studies like IgAN research (RAINIER Study).

    About IgA Nephropathy

    What is IgA Nephropathy (IgAN)?

    IgA nephropathy (IgAN) is an autoimmune disease where antibodies build up over time and can cause kidney damage.
    IgAN may eventually lead to kidney failure and require dialysis or transplant. Although a cure for IgA nephropathy does not exist today, studies like RAINIER are actively researching potential investigational drugs and therapies to treat IgA nephropathy in diagnosed patients.

    What are the signs and symptoms of IgA Nephropathy?

    IgA nephropathy symptoms may not be noticed early in the disease course, but as the disease progresses patients can experience:

    • Proteinuria (protein in the urine which can make it look foamy or bubbly)
    • Blood in the urine or change in the colour of urine
    • High blood pressure
    • Swelling in hands, feet, ankles, belly, or face
    • Pain on one or both sides of the back below the ribs

    Overview of Clinical Trials

    Here are some common questions and answers about study participation.

    If you have additional questions click here for more information on the RAINIER Study.

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