E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
complement 3 glomerulopathy (C3G)/immune complex membranoproliferative glomerulonephritis (IC-MPGN) |
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E.1.1.1 | Medical condition in easily understood language |
Rare kidney disease which can reoccur after a kidney transplant. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the efficacy of pegcetacoplan in improving the underlying pathophysiology of complement 3 glomerulopathy (C3G)/immune complex membranoproliferative glomerulonephritis (IC-MPGN) after 12 weeks of treatment. |
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E.2.2 | Secondary objectives of the trial |
Secondary: - To evaluate the safety of pegcetacoplan for up to 52 weeks in patients with recurrent C3G/IC-MPGN in a renal allograft. - To evaluate the effect of pegcetacoplan on key clinical manifestations of the disease after 52 weeks of treatment. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Individuals must meet all of the following criteria at screening visits to be included in the study: 1. At least 18 years of age at screening 2. Must have clinical and pathologic evidence of recurrent C3G or IC-MPGN, as evidenced by all of the following: a. A diagnosis of C3G or IC-MPGN, with at least 2+ staining for C3c in the renal allograft, confirmed by a central pathologist, based on the screening renal allograft biopsy b. Clinical evidence of C3G or IC-MPGN recurrence in the form of at least 1 g/day of proteinuria in a 24-hour urine collection that is attributable to disease recurrence in the opinion of the investigator c. C3G or IC-MPGN must be primary and not secondary to another condition (eg, infection, malignancy, monoclonal gammopathy, autoimmunity, chronic antibody-mediated rejection, chronic thrombotic microangiopathy, or a medication) 3. Stable (not improving) or worsening disease, in the opinion of the investigator, in the 2 months preceding the first dose of pegcetacoplan 4. eGFR ≥15 mL/min/1.73 m2, calculated by the Chronic Kidney Disease–Epidemiology Collaboration (CKD-EPI) creatinine equation for adults 5. No more than 50% glomerulosclerosis or interstitial fibrosis on the screening renal biopsy 6. Stable regimen for recurrent C3G/IC-MPGN for at least 4 weeks prior to the screening renal allograft biopsy and from the time of the screening renal allograft biopsy until randomization 7. Have received required vaccinations against N. meningitides, S. pneumoniae, and H. influenzae (type B) or agree to receive vaccinations if applicable vaccination records are not available, Vaccination is mandatory unless documented evidence exist that subjects are nonresponders to vaccination 8. Women of childbearing potential, defined as any women who have experienced menarche and who are not permanently sterile or postmenopausal, must have a negative blood pregnancy test at screening (and negative urine pregnancy at Visit 4) and must agree to use protocoldefined methods of contraception from screening through 12 weeks after receiving last dose of pegcetacoplan 9. Men must agree to use protocol-defined methods of contraception and agree to refrain from donating semen from screening through 12 weeks after receiving last dose of pegcetacoplan 10. Willing and able to provide written informed consent 11. Able to understand and willing to comply with all scheduled procedures and other requirements of the study in the opinion of the investigator 12. Willing and able to self-administer pegcetacoplan or have an identified caregiver who can perform the administration |
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E.4 | Principal exclusion criteria |
Individuals meeting any of the following criteria at screening or baseline are ineligible to participate in this study: 1. Absolute neutrophil count <1000 cells/mm3 during screening (not including Day 1) 2. Previous treatment with pegcetacoplan 3. Evidence of rejection on the screening renal allograft biopsy that requires treatment 4. Diagnosis or history of HIV, hepatitis B, or hepatitis C infection or positive serology at screening indicative of infection with any of these viruses 5. Weight more than 100 kg at screening 6. Hypersensitivity to pegcetacoplan or any of the excipients 7. History of meningococcal disease 8. Malignancy, except for the following: a. Cured basal or squamous cell skin cancer b. Curatively treated in situ disease c. Malignancy free and off treatment for ≥5 years 9. Significant renal disease in the renal allograft secondary to another condition (eg, infection, malignancy, monoclonal gammopathy, rejection, or a medication) that would, in the opinion of the investigator, confound interpretation of the study results 10. Participation in any other investigational drug trial or exposure to other investigational agent, device, or procedure within 30 days or 5 half-lives from the last dose of the investigational agent (whichever is longer) prior to screening period 11. Women who are pregnant, or who are currently breastfeeding 12. Inability to cooperate or any condition that, in the opinion of the investigator, could increase the subject’s risk by participating in the study or confound the outcome of the study 13. Evidence of drug or alcohol abuse or dependence, in the opinion of the investigator 14. Known or suspected hereditary fructose intolerance |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary efficacy endpoint is the proportion of subjects with reduction in C3c staining on renal biopsy after 12 weeks of treatment with pegcetacoplan. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
The secondary endpoints are as follows: • The number and incidence of treatment-emergent TEAEs • The proportion of subjects with reduction in C3c staining on renal biopsy after 52 weeks of treatment • The proportion of subjects achieving at least a 50% reduction in proteinuria over time • The proportion of subjects achieving complete clinical remission of proteinuria after 12 weeks of treatment, defined as normalization of proteinuria • The proportion of subjects with stabilization or improvement in estimated glomerular filtration rate (eGFR) over time • The proportion of subjects with stabilization or improvement of serum creatinine concentration over time • Changes from baseline biopsy in C3c staining over time • Changes and percentage changes from baseline in eGFR and serum creatinine concentration over time |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Variation in treatment schedule: Group2 will not receive pegcetacoplan during the Controlled Portion |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 8 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Argentina |
Switzerland |
Australia |
Brazil |
United Kingdom |
United States |
Austria |
France |
Italy |
Netherlands |
Spain |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of the study will be the last patient’s last visit or the last patient’s scheduled visit/assessment as indicated in the Schedule of Events OR as requested by the sponsor. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 11 |
E.8.9.2 | In all countries concerned by the trial days | 0 |