Antineutrophil Cytoplasmic Antibody-associated VasculitisPhase 4AVASETNCT06072482
A Study to Evaluate Avacopan in Participants With ANCA-associated Vasculitis
A Phase 4 study testing Avacopan in people with Antineutrophil Cytoplasmic Antibody-associated Vasculitis, run by Amgen at 83 sites in 7 countries.
Trial summary
The primary objective of this study is to evaluate the long-term safety of avacopan in participants with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). Read more about this study
- Who is it for?
- Ages 18 to 100 years
- Conditions the study is for
- Antineutrophil Cytoplasmic Antibody-associated Vasculitis
- What is being tested?
- Avacopan
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 300 participants
- Where
- 83 sitesin 7 countries
- Study dates
- 7 Feb 2024to 31 Dec 2036
- Phase
- Phase 4
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participants has provided informed consent before initiation of any study-specific activities/procedures.
- Newly diagnosed or relapse of granulomatosis with polyangiitis or microscopic polyangiitis, consistent with Chapel-Hill Consensus Conference definitions (Jennette et al, 2013), where induction treatment with cyclophosphamide or rituximab is needed.
- Note: For participants receiving azathioprine, mycophenolate, or methotrexate, these medications must be discontinued prior to initiation of induction treatment. Participants receiving, or planned to receive combined rituximab and cyclophosphamide for remission induction of the current disease episode at the time of enrollment are not eligible.
- Age >/= 18 years (or >/= legal age within the country if it is older than 18 years).
- Positive test for anti-positive antiproteinase 3 or antimyeloperoxidase (current or historic) antibodies.
- At least 1 Birmingham Vasculitis Activity Score (BVAS) major item, or at least 3 BVAS nonmajor items, or at least the 2 renal items of proteinuria and hematuria.
- eGFR >/= 15 mL/min/1.73 m^2 (using Chronic Kidney Disease Epidemiology Collaboration equations).
Who cannot join
- Alveolar hemorrhage requiring invasive pulmonary ventilation support anticipated to last beyond the screening period of the study.
- Any other known multisystem autoimmune disease that may confound study assessments and study conclusions including but not limited to eosinophilic granulomatosis with polyangiitis (GPA [Churg-Strauss]), systemic lupus erythematosus, immunoglobulin (Ig) A vasculitis (Henoch-Schönlein), rheumatoid vasculitis, Sjogren's syndrome, anti-glomerular basement membrane disease, or cryoglobulinemic vasculitis.
- Any other medical condition requiring or expected to require continued use of immunosuppressive therapies, including corticosteroids that may cause confoundment with study assessments and study conclusions.
- Received dialysis or plasma exchange within 16 weeks before Day 1 randomization.
- Have had a kidney transplant.
- Malignancy (except curatively treated nonmelanoma skin cancers, curatively treated cervical carcinoma in situ, or breast ductal carcinoma in situ) within the last 5 years before Day 1 randomization.
Show all 28Show fewer
- Acute or chronic, active hepatitis B virus or hepatitis C virus, or human immunodeficiency virus infection during screening.
- Any known exposure to a case of active tuberculosis (TB) within the last 12 weeks before Day 1 randomization.
- Positive test for active or latent TB during screening.
- White blood cell count < 3500/µL, neutrophil count < 1500/µL, or lymphocyte count < 500/µl. Note: Complete Blood Count can be repeated once in the screening period at the investigator discretion. In such instances, eligibility will be determined based on the repeat complete blood count.
- Evidence of clinically significant hepatic disease including prior diagnosis of cirrhosis.
- Aspartate aminotransferase (AST), alanine aminotransferase (ALT), or alkaline phosphatase (ALP) >2.0 times the upper limit of normal (ULN).
- Total bilirubin > 1.5 times the ULN. Note: A participant with documented Gilbert's syndrome with total bilirubin < 2 x ULN may be eligible.
- Any of the following within 6 weeks prior to Day 1 randomization: serious infection, infection requiring treatment with intravenous (IV) anti-infective agents, any other infection (including active infection, chronic infection, opportunistic infection, or history of recurrent infection) that in the opinion of the investigator would pose a risk to participant safety or interfere with the study evaluation, procedures, or completion. Oral or vaginal candidiasis and cutaneous or nail fungal infections that are not serious do not constitute an exclusion.
- Any of the following within 12 weeks prior to Day 1 randomization: myocardial infarction, stroke, unstable angina, symptomatic congestive heart failure requiring prescription medication, any other clinically significant cardiovascular disease that in the opinion of the investigator would pose a risk to participant safety or interfere with the study evaluation, procedures, or completion.
- Received cyclophosphamide (CYC) within 12 weeks before signing the informed consent; if on azathioprine (AZA), mycophenolate, or methotrexate (MTX) at the time of screening, these drugs must be withdrawn before receiving CYC. Note: If induction therapy with CYC was started within 2 weeks before signing the informed consent for the current episode of newly diagnosed or relapse of GPA or microscopic polyangiitis (MPA), the participant may be eligible, provided no CYC was received within 12 weeks before the start of the current induction therapy and if on AZA, mycophenolate, or MTX, these were withdrawn prior to receiving the current induction therapy with CYC.
- Have been taking an oral daily dose of a glucocorticoid of more than 10 mg prednisone equivalent for more than 6 weeks continuously before signing of the informed consent.
- Received RTX or other B-cell depleting therapies within 26 weeks before signing of the informed consent; if on AZA, mycophenolate, or MTX at the time of screening, these drugs must be withdrawn before receiving rituximab (RTX). Note: If induction therapy with RTX was started within 2 weeks before signing the informed consent for the current episode of newly diagnosed or relapse of GPA or MPA, the participant may be eligible, provided no RTX was received within 26 weeks before the start of the current induction therapy and if on AZA, mycophenolate, or MTX, these were withdrawn prior to receiving the current induction therapy with RTX.
- Received any of the following within 16 weeks before Day 1 randomization:
- antitumor necrosis factor treatment
- abatacept
- alemtuzumab
- IV Ig
- belimumab
- anti interleukin-6 agent (eg, tocilizumab, sarilumab).
- Taking a strong or moderate inducer of the cytochrome P450 3A4 (CYP3A4) enzyme unless the strong or moderate CYP3A4 inducer can be changed to an alternative medicine at least 1 week before Day 1 randomization.
- Received an investigational drug within 30 days or within 5 half-lives (whichever is longer) before Day 1 randomization.
- Previously received avacopan without clinical benefit per the Investigator's opinion or received avacopan within 60 days before Day 1 randomization.
Trial locations and contacts
83 sites in 7 countries. Contact the study team or a site near you to ask about taking part.
83 sites in 7 countries
United States62 sites, 58 recruiting
- Recruiting
New York Nephrology Vasculitis and Glomerular Center
Albany, New York, 12209
- Recruiting
Renal Medicine Associates
Albuquerque, New Mexico, 87109
- Terminated
Orthopedic Physicians Alaska
Anchorage, Alaska, 99508
- Recruiting
Emory University
Atlanta, Georgia, 30322
- Recruiting
University of Colorado
Aurora, Colorado, 80045
- Recruiting
Vital Rheumatology
Austin, Texas, 78727
- Recruiting
Johns Hopkins Bayview Medical Center
Baltimore, Maryland, 21224
- Recruiting
Rheumatology and Pulmonary Clinic
Beckley, West Virginia, 25801
- Recruiting
Florida Kidney Physicians
Boca Raton, Florida, 33431
- Recruiting
Massachusetts General Hospital
Boston, Massachusetts, 02114
- Recruiting
Brigham and Womens Hospital
Boston, Massachusetts, 02115
- Recruiting
Medical University of South Carolina
Charleston, South Carolina, 29425
- Recruiting
University Hospitals Cleveland Medical Center
Cleveland, Ohio, 44106
- Recruiting
The Ohio State University
Columbus, Ohio, 43201
- Terminated
Medvin Clinical Research
Covina, California, 91722
- Recruiting
Renal Disease Research Institute - Landry Office
Dallas, Texas, 75204
- Recruiting
Henry Ford Health System
Detroit, Michigan, 48202
- Recruiting
Nephrology Associates Inc
East Providence, Rhode Island, 02914
- Recruiting
Nephrology Associates of Northern Virginia Inc
Fairfax, Virginia, 22033
- Recruiting
Palo Alto Medical Foundation Fremont
Fremont, California, 94538
- Recruiting
The Nephrology Group
Fresno, California, 93720
- Recruiting
Providence Medical Foundation
Fullerton, California, 92835
- Recruiting
Malcom Randall Veterans Affairs Medical Center
Gainesville, Florida, 32608
- Recruiting
Northwell Health
Great Neck, New York, 11021
- Recruiting
Carolina Kidney Associates
Greensboro, North Carolina, 27405
- Recruiting
East Carolina University Brody Outpatient Center
Greenville, North Carolina, 27834
- Recruiting
University of Iowa Hospitals and Clinics
Iowa City, Iowa, 52242
- Recruiting
West Tennessee Research Institute
Jackson, Tennessee, 38305
- Recruiting
Mayo Clinic
Jacksonville, Florida, 32224
- Recruiting
Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, 03766
- Recruiting
University of Kentucky
Lexington, Kentucky, 40536
- Recruiting
Southland Arthritis and Osteoarthritis Medical Center, Inc
Menifee, California, 92586
- Recruiting
Stat Research
Miamisburg, Ohio, 45342
- Recruiting
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
- Recruiting
University of Minnesota
Minneapolis, Minnesota, 55414
- Terminated
Vanderbilt University Medical Center
Nashville, Tennessee, 37232
- Recruiting
Lake Cumberland Rheumatology
New Albany, Indiana, 47150
- Recruiting
Hospital For Special Surgery
New York, New York, 10021
- Recruiting
Hightower Clinical
Oklahoma City, Oklahoma, 73114
- Recruiting
ClinTrial Research Oakwater, Llc
Orlando, Florida, 32806
- Recruiting
University of Pennsylvania
Philadelphia, Pennsylvania, 19104
- Recruiting
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15213
- Recruiting
Allegheny Health Network Cancer Institute at Mellon Pavilion
Pittsburgh, Pennsylvania, 15224
- Recruiting
Oregon Health and Science University
Portland, Oregon, 97239
- Recruiting
Epic Medical Research - Red Oak
Red Oak, Texas, 75154
- Recruiting
Renown Rheumatology
Reno, Nevada, 89502
- Recruiting
Mayo Clinic
Rochester, Minnesota, 55905
- Recruiting
Kidney Michigan Institute
Saginaw, Michigan, 49804
- Recruiting
Clinical Research Institute of Michigan
Saint Clair Shores, Michigan, 48081
- Recruiting
University of California San Francisco- Zuckerburg San Francisco General
San Francisco, California, 94110
- Recruiting
Scottsdale Healthcare at Shea - HonorHealth
Scottsdale, Arizona, 85258
- Recruiting
Unity Health
Searcy, Arkansas, 72143
- Terminated
Virginia Mason Medical Center
Seattle, Washington, 98101
- Recruiting
Dunes Clinical Research LLC
Sioux City, Iowa, 51104
- Recruiting
Carolina Nephrology PA
Spartanburg, South Carolina, 29306
- Recruiting
Revive Research Institute
Sterling Heights, Michigan, 48313
- Recruiting
Southwest Kidney Institute
Surprise, Arizona, 85374
- Recruiting
University of South Florida
Tampa, Florida, 33606
- Recruiting
Scott and White Memorial Hospital
Temple, Texas, 76502
- Recruiting
Harbor University of California at Los Angeles Medical Center
Torrance, California, 90502
- Recruiting
Amicis Research Center
Valencia, California, 91355
- Recruiting
Brookview Hills Research Associates Llc
Winston-Salem, North Carolina, 27103
Czechia7 sites, 7 recruiting
- Recruiting
Fakultni nemocnice Hradec Kralove
Hradec Králové, 500 05
- Recruiting
Fakultni nemocnice Olomouc
Olomouc, 779 00
- Recruiting
Fakultni nemocnice Ostrava
Ostrava - Poruba, 708 52
- Recruiting
Fakultni nemocnice Plzen
Pilsen, 304 60
- Recruiting
Fakultni nemocnice Kralovske Vinohrady
Prague, 100 34
- Recruiting
Revmatologicky ustav
Prague, 128 00
- Recruiting
Vseobecna fakultni nemocnice v Praze
Prague, 128 08
Poland4 sites, 4 recruiting
- Recruiting
SPZOZ Uniwersytecki Szpital Kliniczny nr 1 im Norberta Barlickiego Uniwersytetu Medycznego w Lodzi
Lodz, 90-153
- Recruiting
Spzoz Centralny Szpital Kliniczny Umed w Lodzi
Lodz, 92-213
- Recruiting
Narodowy Instytut Geriatrii Reumatologii i Rehabilitacji im prof dr hab med Eleonory Reicher
Warsaw, 02-637
- Recruiting
Wojskowy Instytut Medyczny - Panstwowy Instytut Badawczy Centralny Szpital Kliniczny Mon
Warsaw, 04-141
Denmark3 sites, 3 recruiting
- Recruiting
Aalborg Universitetshospital
Aalborg, 9000
- Recruiting
Rigshospitalet
Copenhagen, 2100
- Recruiting
Odense Universitetshospital
Odense C, 5000
Romania3 sites, 3 recruiting
- Recruiting
Spitalul Clinic Sf Maria, Bucuresti
Bucharest, 011172
- Recruiting
Spitalul Clinic Dr Ion Cantacuzino
Bucharest, 020475
- Recruiting
Spitalul Clinic Judetean de Urgenta Cluj
Cluj-Napoca, 400006
Greece2 sites, 2 recruiting
- Recruiting
General Hospital of Athens Laiko
Athens, 11527
- Recruiting
Hippokration General Hospital of Athens
Athens, 11527
Hungary2 sites, 2 recruiting
- Recruiting
Debreceni Egyetem Klinikai Kozpont
Debrecen, 4032
- Recruiting
Pecsi Tudomanyegyetem Klinikai Kozpont
Pécs, 7632
About this study
Official title: A Randomized, Double-blind, Placebo-controlled Phase 4 Clinical Trial to Evaluate the Long-term Safety and Efficacy of Avacopan in Participants With Antineutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis
The primary objective of this study is to evaluate the long-term safety of avacopan in participants with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).
- Being tested
- Avacopan, Placebo, Standard of Care
- Keywords
- Avacopan, ANCA-associated Vasculitis, AAV
- Medical subject headings
- Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AvacopanDrug
Also called CCX168
Administered orally.
PlaceboDrug
Administered orally.
Standard of CareDrug
All participants will receive SoC background immunosuppressive therapy for induction and maintenance, at the discretion of the Investigator and as supported by current guidelines, product labels and local practices and informed by the individual participant's clinical condition, preferences, and values.
| Study group | Role | What they receive |
|---|---|---|
| Group A: Avacopan + Standard of Care (SoC) | Experimental | Avacopan 30 mg twice daily for 5 years + SoC background immunosuppressive therapy. Receives: Drug: Avacopan; Drug: Standard of Care |
| Group B: Avacopan/Placebo + SoC | Experimental | Avacopan 30 mg twice daily for 1 year, followed by placebo twice daily for 4 years + SoC background immunosuppressive therapy. Receives: Drug: Avacopan; Drug: Placebo; Drug: Standard of Care |
| Group C: Placebo + SoC | Placebo comparator | Placebo twice daily for 5 years + SoC background immunosuppressive therapy. Receives: Drug: Placebo; Drug: Standard of Care |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
Measured: Up to Month 60
Percentage of Participants Experiencing Adverse Events of Special Interest
Measured: Up to Month 60
Percentage of Participants Experiencing Serious Adverse Events
Measured: Up to Month 60
Percentage of Participants Experiencing Adverse Events Leading to Withdrawal
Measured: Up to Month 60
Percentage of Participants Experiencing Adverse Events Leading to Death
Measured: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Vital Signs Measurements
Measured: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Hematology Assessments
Measured: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Serum Chemistry Assessments
Measured: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Urinalysis Assessments
Measured: Up to Month 60
Secondary outcomes (11)
Group A and B Participants who Achieved Remission at Month 12: Time to Relapse in AAV Between Month 12 and Month 60
Measured: Month 12 to Month 60
Group A and B Participants who Achieved Remission at Month 12: Percentage of Participants who Relapse After Achieving Remission at Month 12
Measured: Month 12 to Month 60
Groups A and C: Percentage of Participants who Achieved Sustained Remission at Month 60
Measured: Month 60
Group A and C Participants with Overt Renal Disease at Baseline: Change from Baseline to Month 60 in Estimated Glomerular Filtration Rate (eGFR)
Measured: Baseline and Month 60
Groups A and C: Change from Baseline to Month 60 in Short Form 36 Health Survey Version 2 (SF-36 v2) General Health Perception Score
Measured: Baseline and Month 60
Groups A and C: Change from Baseline to Month 60 in EuroQoL-5 Dimension 5 Levels (EQ-5D-5L) Visual Analogue Scale (VAS)
Measured: Baseline and Month 60
Percentage of Participants who Achieved Remission at Month 6
Measured: Month 6
Groups A and C: Change from Baseline to Month 60 in Vasculitis Damage Index (VDI)
Measured: Baseline and Month 60
Groups A and C: Percentage of Participants with Composite Outcome of Initiation of Maintenance Dialysis, Kidney Transplantation, or Death
Measured: Up to Month 60
Percentage of Participants With Glucocorticoid Use
Measured: Up to Month 60
Percentage of Participants With Immunosuppressant Use
Measured: Up to Month 60
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Oct 2023
- Study start7 Feb 2024
- Primary completion31 Dec 2036 (estimated)
- Study completion31 Dec 2036 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Antineutrophil Cytoplasmic Antibody-associated VasculitisStudies of the same condition, open and under way.
- More trials run by AmgenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 300 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Amgen
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- MD, Study director, Amgen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06072482
- Sponsor's protocol ID
- 20220159
- Other IDs
- EU CT Number
- Acronym
- AVASET
- Status last verified
- Sep 2026
- First submitted
- 2 Oct 2023
- Last updated
- 30 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
Study at a glance
From the registry record, last updated by the sponsor on 30 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-blind, Placebo-controlled Phase 4 Clinical Trial to Evaluate the Long-term Safety and Efficacy of Avacopan in Participants With Antineutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis
- ClinicalTrials.gov ID
- NCT06072482
- Acronym / sponsor ID
- AVASET / 20220159
- Keywords
- Avacopan, ANCA-associated Vasculitis, AAV
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 300 participants (estimated)
- Lead sponsor
- AmgenIndustry (pharma, biotech, devices)
- Study start
- 7 Feb 2024 (actual)
- Primary completion
- 31 Dec 2036 (estimated)
- Study completion
- 31 Dec 2036 (estimated)
- First posted
- 10 Oct 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective of this study is to evaluate the long-term safety of avacopan in participants with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Group A: Avacopan + Standard of Care (SoC) | Experimental | Drug: Avacopan, Drug: Standard of CareAvacopan 30 mg twice daily for 5 years + SoC background immunosuppressive therapy. |
| Group B: Avacopan/Placebo + SoC | Experimental | Drug: Avacopan, Drug: Placebo, Drug: Standard of CareAvacopan 30 mg twice daily for 1 year, followed by placebo twice daily for 4 years + SoC background immunosuppressive therapy. |
| Group C: Placebo + SoC | Placebo comparator | Drug: Placebo, Drug: Standard of CarePlacebo twice daily for 5 years + SoC background immunosuppressive therapy. |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Participants has provided informed consent before initiation of any study-specific activities/procedures.
- Newly diagnosed or relapse of granulomatosis with polyangiitis or microscopic polyangiitis, consistent with Chapel-Hill Consensus Conference definitions (Jennette et al, 2013), where induction treatment with cyclophosphamide or rituximab is needed.
- Note: For participants receiving azathioprine, mycophenolate, or methotrexate, these medications must be discontinued prior to initiation of induction treatment. Participants receiving, or planned to receive combined rituximab and cyclophosphamide for remission induction of the current disease episode at the time of enrollment are not eligible.
- Age >/= 18 years (or >/= legal age within the country if it is older than 18 years).
- Positive test for anti-positive antiproteinase 3 or antimyeloperoxidase (current or historic) antibodies.
Key exclusion criteria (28 listed)
- Alveolar hemorrhage requiring invasive pulmonary ventilation support anticipated to last beyond the screening period of the study.
- Any other known multisystem autoimmune disease that may confound study assessments and study conclusions including but not limited to eosinophilic granulomatosis with polyangiitis (GPA [Churg-Strauss]), systemic lupus erythematosus, immunoglobulin (Ig) A vasculitis (Henoch-Schönlein), rheumatoid vasculitis, Sjogren's syndrome, anti-glomerular basement membrane disease, or cryoglobulinemic vasculitis.
- Any other medical condition requiring or expected to require continued use of immunosuppressive therapies, including corticosteroids that may cause confoundment with study assessments and study conclusions.
- Received dialysis or plasma exchange within 16 weeks before Day 1 randomization.
- Have had a kidney transplant.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AvacopanAlso: CCX168Administered orally. | Drug | Group A: Avacopan + Standard of Care (SoC), Group B: Avacopan/Placebo + SoC |
| PlaceboAdministered orally. | Drug | Group B: Avacopan/Placebo + SoC, Group C: Placebo + SoC |
| Standard of CareAll participants will receive SoC background immunosuppressive therapy for induction and maintenance, at the discretion of the Investigator and as supported by current guidelines, product labels and local practices and informed by the individual participant's clinical condition, preferences, and values. | Drug | Group A: Avacopan + Standard of Care (SoC), Group B: Avacopan/Placebo + SoC, Group C: Placebo + SoC |
Primary outcome
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
Time frame: Up to Month 60
Percentage of Participants Experiencing Adverse Events of Special Interest
Time frame: Up to Month 60
Percentage of Participants Experiencing Serious Adverse Events
Time frame: Up to Month 60
Percentage of Participants Experiencing Adverse Events Leading to Withdrawal
Time frame: Up to Month 60
Percentage of Participants Experiencing Adverse Events Leading to Death
Time frame: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Vital Signs Measurements
Time frame: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Hematology Assessments
Time frame: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Serum Chemistry Assessments
Time frame: Up to Month 60
Number of Participants Experiencing Clinical Significant Changes from Baseline in Urinalysis Assessments
Time frame: Up to Month 60
11 secondary outcomes
Group A and B Participants who Achieved Remission at Month 12: Time to Relapse in AAV Between Month 12 and Month 60
Time frame: Month 12 to Month 60
Group A and B Participants who Achieved Remission at Month 12: Percentage of Participants who Relapse After Achieving Remission at Month 12
Time frame: Month 12 to Month 60
Groups A and C: Percentage of Participants who Achieved Sustained Remission at Month 60
Time frame: Month 60
Group A and C Participants with Overt Renal Disease at Baseline: Change from Baseline to Month 60 in Estimated Glomerular Filtration Rate (eGFR)
Time frame: Baseline and Month 60
Groups A and C: Change from Baseline to Month 60 in Short Form 36 Health Survey Version 2 (SF-36 v2) General Health Perception Score
Time frame: Baseline and Month 60
Groups A and C: Change from Baseline to Month 60 in EuroQoL-5 Dimension 5 Levels (EQ-5D-5L) Visual Analogue Scale (VAS)
Time frame: Baseline and Month 60
Percentage of Participants who Achieved Remission at Month 6
Time frame: Month 6
Groups A and C: Change from Baseline to Month 60 in Vasculitis Damage Index (VDI)
Time frame: Baseline and Month 60
Groups A and C: Percentage of Participants with Composite Outcome of Initiation of Maintenance Dialysis, Kidney Transplantation, or Death
Time frame: Up to Month 60
Percentage of Participants With Glucocorticoid Use
Time frame: Up to Month 60
Percentage of Participants With Immunosuppressant Use
Time frame: Up to Month 60
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Sep 2026.
- AmgenTrials clinical trials websiteLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
MD study director
Amgen
83 sites in 7 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Avacopan in people with Antineutrophil Cytoplasmic Antibody-associated Vasculitis, run by Amgen at 83 sites in 7 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 28 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 30 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 83 sites in United States, Czechia, Poland, Denmark, Romania and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Amgen Call Center (866-572-6436, medinfo@amgen.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs) (time frame: Up to Month 60). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Sep 2026.