Efficacy and Safety in Patients With Primary IgA Nephropathy Who Have Completed Study Nef-301 (Nefigard-OLE)

Primary IgA Nephropathy Clinical Trial

— Nefigard-OLE  

Official title:

An Open-Label Extension (OLE) Study to Evaluate the Efficacy and Safety of Nefecon Treatment in Patients With IgA Nephropathy Who Have Completed Study Nef-301

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT04541043
• Other study ID #: Nef-301 OLE
• Secondary ID: 2020-003308-14
• Status: Active, not recruiting
• Phase: Phase 3
• Start date: November 14, 2020
• Est. completion date: June 30, 2024

Study information

• Verified date: July 2023
• Source: Calliditas Therapeutics AB
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a Phase 3b, multicenter, open-label extension (OLE) study to evaluate the efficacy and safety of Nefecon treatment in patients with IgAN who have completed the Phase 3 Study Nef-301 and continue to be treated with a stable dose of RAS inhibitor therapy (ACEIs and/or ARBs). Patients who previously received Nefecon in Study Nef-301 will receive retreatment, whereas patients who previously received placebo in Study Nef-301 will be treatment naïve to Nefecon.

Description:

This is a Phase 3b, multicenter, open-label extension (OLE) study to evaluate the efficacy and safety of Nefecon treatment in patients with IgAN who have completed the Phase 3 Study Nef 301 and continue to be treated with a stable dose of RAS inhibitor therapy (ACEIs and/or ARBs). Patients who previously received Nefecon in Study Nef-301 will receive retreatment, whereas patients who previously received placebo in Study Nef-301 will be treatment naïve to Nefecon. During Study Nef-301 OLE, the patients and Investigators will remain blinded to treatment given in Study Nef-301.

During Study Nef-301 OLE, patients will receive Nefecon for a 9-month period. The dose may be reduced if clinically relevant adverse events (AEs) develop during the 9-month Treatment Period that the Investigator considers related to the study drug and that mandate dose reduction.

Patients will remain on a stable dose of RAS inhibitor therapy (ACEIs and/or ARBs) throughout the study. The patient will come for a follow-up visit at 12 months after first dose.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 119
• Est. completion date: June 30, 2024
• Est. primary completion date: June 30, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Patients that completed study Nef-301

2. On a stable dose of RAS inhibitor therapy (ACEIs and/or ARBs) at the maximum allowed dose or maximum tolerated dose according to the 2012 KDIGO guidelines

3. Willing and able to provide written informed consent.

4. UPCR equal to or more than 0.8 g/gram

5. eGFR equal to or more than 30 mL/min per 1.73 m2 using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula.

Exclusion Criteria:

1. Systemic diseases that may cause mesangial IgA deposition.

2. Patients who have undergone a kidney transplant;

3. Patients with presence of other glomerulopathies and/or nephrotic syndrome

4. Patients with acute, chronic, or latent infectious disease including hepatitis, tuberculosis (TB), human immunodeficiency virus (HIV), and chronic urinary tract infections;

5. Patients with liver cirrhosis, as assessed by the Investigator;

6. Patients with a diagnosis of type 1 or type 2 diabetes mellitus which is poorly controlled

7. Patients with history of unstable angina, class III or IV congestive heart failure, and/or clinically significant arrhythmia, as judged by the Investigator;

8. Patients with unacceptable blood pressure control defined as a blood pressure consistently above national guidelines for proteinuric renal disease, as assessed by the Investigator.

9. Patients with diagnosed malignancy within the past 5 years.

Related Conditions & MeSH terms

• Glomerulonephritis, IGA
• Kidney Diseases
• Primary IgA Nephropathy

Intervention

Drug:
• Nefecon
Nefecon is taken orally as capsules once daily in the morning for 9 months.

Locations

Country	Name	City	State
Sweden	Uppsala University Hospital	Uppsala

Sponsors (1)

Lead Sponsor	Collaborator
Calliditas Therapeutics AB

Country where clinical trial is conducted

Sweden, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in urine protein to creatinine ratio (UPCR) after 9 months	The outcome is measured as UPCR based on 24 hour urine collections at 9 months following the first dose of Nefecon compared to baseline.	9 months
Primary	Change in estimated glomerular filtration rate (eGFR) at 9 months	The outcome is measured as change in eGFR (calculated using the CKD-EPI formula) at 9 months following the first dose of Nefecon compared to baseline.	9 months
Secondary	The incidence of treatment emergent adverse events	Adverse event data collection	From enrollment up to 12 months