Saves the questions and what to expect into your notes, next to the visit they belong to.
Keep this study
Lead
Alpine Immune Sciences, Inc.
Age
18–any
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Part A:
Biopsy-confirmed autoantibody-associated glomerular disease: immunoglobulin A nephropathy (IgAN), primary membranous nephropathy (pMN), or lupus nephritis (LN)
On maximal dose or the maximally tolerated dose ACEis/ARBs for ≥12 weeks prior to study Day 1
Indication-specific criteria:
1. IgAN
* Biopsy-confirmed diagnosis less than or equal to (≤)10 years prior to the start of screening AND Screening UPCR greater than or equal to (≥)0.5 g/g.
* No background immunosuppression therapies.
2. pMN
* A historical biopsy-confirmed diagnosis with positive anti-PLA2R1 antibodies or anti-THSD7A antibodies at screening AND Screening UPCR ≥1 g/g
* Inadequate reduction of proteinuria determined by the Principal Investigator (PI) despite optimal supportive care for at least 12 weeks.
* No background immunosuppression therapies except for optional calcineurin inhibitors.
3. LN
* A Biopsy-confirmed diagnosis of active, proliferative Class III, IV, (with or without Class V) LN ≤6 months prior to the start of screening AND Screening UPCR ≥1 g/g,
* Anti-dsDNA at screening. Anti-dsDNA testing is required but the result need not be positive.
* On stable background immunosuppression ≥ 8 weeks prior to Day 1
4. AAV
* Past diagnosis of renal AAV, defined as either of the following:
* History of renal biopsy consistent with renal AAV.
* History of clinically diagnosed renal AAV.
* Myeloperoxidase (MPO)-ANCA or proteinase 3 (PR3)-ANCA positive by enzyme-linked immunosorbent assay at screening.
* At least 4 weeks since initiation of AAV induction therapy, if applicable.
Part B:
Participants meet at least 1 of the following criteria:
* Completed investigational product (IP) treatment and 24 weeks of follow-up in Part A, or
* Had IP interruption(s) in Part A, but did not permanently discontinue IP, and completed study visits up to the last scheduled visit of the follow-up period of Part A.
You may not be if
Part A:
Prior diagnosis of, or fulfills diagnostic criteria for, another renal disease
eGFR \<30 milliliter per minute per square meter (mL/min/1.73m\^2) or rapidly progressive glomerulonephritis
Recent serious or ongoing infection; risk or history of serious infection
Receipt of B cell depleting therapies or anti-BAFF and/or APRIL therapies within protocol specified timeframes
Part B:
History of poor compliance with IP and/or procedures in Part A, as deemed by the investigator or Sponsor
History of any AEs or clinical conditions during Part A or emerging thereafter that may pose a safety concern for participation in Part B as deemed by investigator or Sponsor.
Clareo Health | An Open-label Study of Povetacicept in Autoantibody-Associated Glomerular Diseases
