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C3 GlomerulonephritisPhase 2NCT03459443

A Proof of Concept Study for a 12 Month Treatment in Patients With C3G or IC-MPGN Treated With ACH-0144471

A Phase 2 study testing Danicopan in people with C3 Glomerulonephritis and C3 Glomerulopathy, run by Alexion Pharmaceuticals, Inc. at 13 sites in 5 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary purpose of this study was to evaluate the efficacy of 12 months of oral ACH-0144471 (also known as danicopan and ALXN2040) in participants with C3G or IC-MPGN based on histologic scoring and proteinuria. Read more about this study

Who is it for?
Ages 12 years and older
What is being tested?
Danicopan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
13 sitesin 5 countries
Study dates
20 Jun 2018to 29 Mar 2021
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 12 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • At least 12 years of age
  • Completion of the ACH471-201 clinical study OR diagnosed with biopsy-confirmed primary C3G or IC-MPGN
  • If a pre-treatment biopsy is obtained, or if a historical biopsy is available for review, it must have no more than 50% global fibrosis and no more than 50% of glomeruli with cellular crescents
  • Clinical evidence of ongoing disease based on significant proteinuria (defined as ≥500 mg/day of protein in a 24-hour urine) attributable to C3G disease or IC-MPGN in the opinion of the principal investigator (PI), and present prior to study entry and confirmed during Screening
  • If on corticosteroids, anti-hypertensive medications, anti-proteinuric medications (for example, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers), or mycophenolate mofetil, must be on a stable dose for at least 2 weeks prior to screening
  • Female participants must use an acceptable method birth control to prevent pregnancy during the clinical study and for 30 days after the last dose of study medication
Show all 9Show fewer
  • Male participants must use highly effective birth control with a female partner to prevent pregnancy during the clinical study and for 90 days after the last dose of study medication
  • Must be up-to-date on routine vaccinations, or willing to be brought up-to-date, based on local guidelines
  • Must have access to emergency medical care

Who cannot join

  • Have a history of a major organ transplant (for example, heart, lung, kidney, or liver) or hematopoietic stem cell/marrow transplant
  • Have a history or presence of any clinically relevant co-morbidities that would make the participant inappropriate for the study (for example, a comorbidity that is likely to result in deterioration of the participant's condition, affect the participant's safety during the study, or confound the results of the study), in the opinion of the PI
  • Have an eGFR <30 milliliter/minute/1.73 m^2 at the time of screening or at any time over the preceding 4 weeks
  • Is a renal transplant recipient or receiving renal replacement therapy
  • Have other renal diseases that would interfere with the interpretation of the study
  • Have evidence of monoclonal gammopathy of unclear significance, infections, malignancy, autoimmune diseases, or other conditions to which C3G or IC-MPGN is secondary
Show all 25Show fewer
  • Have been diagnosed with or show evidence of hepatobiliary cholestasis
  • Females who are pregnant, nursing, or planning to become pregnant during the study or within 90 days of ACH-0144471 administration or participants with a female partner who is pregnant, nursing, or planning to become pregnant during the study or within 90 days of ACH-0144471 administration
  • Have a history of febrile illness, a body temperature >38°Celsius, or other evidence of a clinically significant active infection, within 14 days prior to danicopan administration
  • Have evidence of human immunodeficiency virus, hepatitis B infection, or active hepatitis C infection at Screening
  • Have a history of meningococcal infection within the prior year
  • Have a history of hypersensitivity reactions to commonly used antibacterial agents, including beta-lactams, penicillin, aminopenicillins, fluoroquinolones, cephalosporins, and carbapenems, which, in the opinion of the investigator and/or an appropriately qualified immunology or infectious disease expert, would make it difficult to properly provide either empiric antibiotic therapy or treat an active infection.
  • Have participated in a clinical study in which an investigational drug was given within 30 days, or within 5 half-lives of the investigational drug, whichever is longer, prior to the first dose of ACH-0144471
  • Have received eculizumab at any dose or interval within the past 50 days prior to the first dose of ACH-0144471
  • Have received tacrolimus or cyclosporine within 2 weeks of the first dose of ACH-0144471
  • Have a 12-lead electrocardiogram (ECG) with a QT interval Fridericia correction formula >450 millisecond (msec) for males or >470 msec for females, or have ECG findings which, in the opinion of the PI, could put the participant at undue risk
  • Have received any drug known to prolong the corrected QT interval within 2 weeks of the first dose of ACH-0144471 and which, in the opinion of the PI, could put the participant at undue risk
  • Have any of the following laboratory abnormalities at screening:
  • Alanine transaminase > upper limit of normal (ULN)
  • Aspartate aminotransferase > ULN
  • Absolute neutrophil counts <1,000/microliter
  • Total bilirubin >1.5* ULN
  • Indirect bilirubin > ULN
  • Any laboratory abnormality that, in the opinion of the PI, would make the participant inappropriate for the study
  • Unwilling or unable to comply with the study protocol for any reason

Trial locations and contacts

13 sites in 5 countries.

13 sites in 5 countries

United States6 sites
  • Clinical Study Site

    Birmingham, Alabama, 35294

  • Clinical Study Site

    Cincinnati, Ohio, 45221

  • Clinical Study Site

    Columbus, Ohio, 43210

  • Clinical Study Site

    New Haven, Connecticut, 06511

  • Clinical Study Site

    Philadelphia, Pennsylvania, 19104

  • Clinical Study Site

    Stanford, California, 94305

Other trials in United States

Australia3 sites
  • Clinical Study Site

    Brisbane, Queensland

  • Clinical Study Site

    Melbourne, Victoria

  • Clinical Study Site

    Sydney, New South Wales

Other trials in Australia

Netherlands2 sites
  • Clinical Study Site

    Leiden

  • Clinical Study Site

    Nijmegen

Other trials in Netherlands

Belgium1 site
  • Clinical Study Site

    Antwerp

Other trials in Belgium

Italy1 site
  • Clinical Study Site

    Ranica

Other trials in Italy

About this study

Official title: An Open-Label Phase 2 Proof-of-Concept Study in Patients With C3 Glomerulopathy (C3G) or Immune-Complex Membranoproliferative Glomerulonephritis (IC-MPGN) Treated With ACH-0144471

The primary purpose of this study was to evaluate the efficacy of 12 months of oral ACH-0144471 (also known as danicopan and ALXN2040) in participants with C3G or IC-MPGN based on histologic scoring and proteinuria.

Read the detailed description

This was an open-label study to evaluate the efficacy of treatment with danicopan in participants 12 years of age or older with biopsy-confirmed C3G or IC-MPGN who had not undergone renal transplantation. All participants were to receive active treatment with danicopan for approximately 40 months. The starting dosage was to be 100 mg TID, and after 2 weeks, the dosage was to be increased to 200 mg TID for participants with body weight ≥ 60 kg or 150 mg TID for participants with body weight < 60 kg. Planned enrollment was approximately 20 participants.

Being tested
Danicopan
Keywords
factor D, fD, alternative pathway, complement mediated disease, C3GN, DDD, idiopathic MPGN, MPGN Type I, MPGN Type II, MPGN Type III, Primary MPGN, MCGN, Mesangiocapillary Glomerulonephritis
Medical subject headings
Glomerulonephritis, Membranoproliferative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DanicopanDrug

    Also called ACH-4471, ACH4471, 4471, ALXN2040

    Danicopan was to be administered as an oral tablet.

Study groups in NCT03459443
Study groupRoleWhat they receive
DanicopanExperimentalDanicopan was to be administered to participants with C3G or IC-MPGN at a starting dose of 100 milligrams (mg) 3 times daily (TID) for the first 2 weeks, then the dosage was to be increased to 200 mg TID for the remainder of the study.
Receives: Drug: Danicopan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline In Composite Biopsy Score At End Of Initial 12-Month Treatment Period

    The composite biopsy score was based on a score incorporating changes in the activity index, glomerular C3c staining, and glomerular macrophage infiltration at the end of the initial 12 months of treatment. The composite renal biopsy index scoring system ranged from 0 to 21, with higher scores indicating worse outcomes.

    Measured: Baseline, end of initial 12-Month Treatment Period

  2. Participants With Reduction In Proteinuria At End Of Initial 12-Month Treatment Period

    Proteinuria reduction was defined as ≥30% decrease from baseline based on 24-hour urine protein (mg/day).

    Measured: Baseline, end of initial 12-Month Treatment Period

Secondary outcomes (7)
  1. Change From Baseline In Proteinuria At End Of Initial 12-Month Treatment Period

    Proteinuria was assessed based on 24-hour urine collections at baseline and end of the initial 12-month Treatment Period.

    Measured: Baseline, end of initial 12-Month Treatment Period

  2. Percent Change From Baseline In Proteinuria At End Of Initial 12-Month Treatment Period

    Proteinuria was assessed based on 24-hour urine collections at baseline and end of initial 12-month Treatment Period.

    Measured: Baseline, end of initial 12-Month Treatment Period

  3. Slope Of Estimated Glomerular Filtration Rate (eGFR) From Baseline To End Of Initial 12-Month Treatment Period

    Slope of eGFR was estimated using a simple linear regression for each participant, including all data values from baseline until the end of the Initial 12-Month Treatment Period, with eGFR as the dependent variable and time as the independent variable.

    Measured: End of initial 12-Month Treatment Period

  4. Change From Baseline In eGFR At End Of Initial 12-Month Treatment Period

    Change from baseline in eGFR at end of initial 12-Month Treatment Period is presented.

    Measured: Baseline, end of initial 12-Month Treatment Period

  5. Participants With Significant Improvement In eGFR Relative To Baseline At End Of Initial 12-Month Treatment Period

    Significant improvement relative to baseline was defined as a ≥ 25% increase from baseline in eGFR.

    Measured: Baseline, end of initial 12-Month Treatment Period

  6. Change From Baseline in eGFR Over 12 Months of Treatment For Participants Meeting eGFR Inclusion Criteria

    Participants were eligible for enrollment if inclusion criteria were met including having an eGFR >=30 milliliters (mL)/minute (min)/1.73 square meter (m^2) at the time of screening or at any time over the preceding 4 weeks. This Outcome Measure was registered in case there were participants who were enrolled and ended up not meeting the Eligibility Criteria and was intended to report data for change from baseline in eGFR for only the participants who met the eligibility criteria (that is, participants who did not meet the eligibility criteria would have been excluded from analysis for this Outcome Measure). Since all enrolled participants met the Eligibility Criteria, none of the participants were excluded from this analysis. Therefore, this data is the same data that is presented in Outcome Measure #6 "Change From Baseline In eGFR At End Of Initial 12-Month Treatment Period". Change from baseline in eGFR at end of initial 12-Month Treatment Period is presented.

    Measured: End of initial 12-Month Treatment Period

  7. Change From Baseline In Measured GFR At The End Of The Initial 12-Month Treatment Period

    Data for this Outcome Measure was to be collected where available. None of the sites collected data for this Outcome Measure.

    Measured: End of initial 12-Month Treatment Period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Mar 2018
  2. Study start20 Jun 2018
  3. Primary completion29 Mar 2021
  4. Study completion29 Mar 2021

Why it stopped: The reason for terminating study early was inconclusive efficacy results. No safety findings were identified.

Resources

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03459443
Sponsor's protocol ID
ACH471-205
Other IDs
2017-002674-39, 2017
Status last verified
Aug 2023
First submitted
26 Feb 2018
Last updated
21 Aug 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Alexion has a public commitment to allow requests for access to study data and will be supplying a protocol, CSR, and plain language summaries.

Publications

  • Nester C, Appel GB, Bomback AS, Bouman KP, Cook HT, Daina E, Dixon BP, Rice K, Najafian N, Hui J, Podos SD, Langman CB, Lightstone L, Parikh SV, Pickering MC, Sperati CJ, Trachtman H, Tumlin J, de Vries AP, Wetzels JFM, Remuzzi G. Clinical Outcomes of Patients with C3G or IC-MPGN Treated with the Factor D Inhibitor Danicopan: Final Results from Two Phase 2 Studies. Am J Nephrol. 2022;53(10):687-700. doi: 10.1159/000527167. Epub 2022 Nov 24.

    PubMed 36423588

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Danicopan in people with C3 Glomerulonephritis and C3 Glomerulopathy, run by Alexion Pharmaceuticals, Inc. at 13 sites in 5 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 9 inclusion and 25 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: stopped early, as of the sponsor's last update on 21 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States, Australia, Netherlands, Belgium, Italy. 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 11 Aug 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline In Composite Biopsy Score At End Of Initial 12-Month Treatment Period (time frame: Baseline, end of initial 12-Month Treatment Period). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03459443, which also lists 1 linked publication.

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 21 Aug 2023.

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