Status:
RECRUITING
A Study of the Efficacy and Safety of DMX-200 in Patients With FSGS Who Are Receiving an ARB
Lead Sponsor:
Dimerix Bioscience Pty Ltd
Conditions:
FSGS
Eligibility:
All Genders
12-80 years
Phase:
PHASE3
Brief Summary
DMX-200 (repagermanium) is a C-C chemokine receptor type 2 (CCR2) inhibitor that, when administered concurrently with an ARB, is designed to inhibit recruitment of monocytes implicated in the inflamma...
Detailed Description
This is a pivotal Phase 3, multicenter, randomized, double-blind, placebo-controlled study of the efficacy and safety of DMX-200 in patients with FSGS. The duration of the double-blind period per pati...
Eligibility Criteria
Inclusion
- DOUBLE BLIND PERIOD
- Patients must be 12 to 80 years old
- A diagnosis of primary FSGS, genetic FSGS, or FSGS of undetermined cause. Confirmed by kidney biopsy within 7 years of screening
- Must be either receiving an ARB at the maximal tolerated dose or willing to transition
- If taking corticosteroids, the dosage must be stable for ≥4 weeks prior to Screening and during Stabilization
- If taking aldosterone inhibitors, mineralocorticoid receptor antagonists, direct renin inhibitors, sodium-glucose co-transporter-2 (SGLT2) inhibitors, or endothelin receptor antagonists (ERAs, including dual antagonists), the dose and regimen must be stable for ≥12 weeks prior to Screening and during Stabilization
- Urine PCR \>1.5 g/g (\>169.5 mg/mmol) or 24-hour total protein \>1.5 g/day based on 24-hour urine collection during Screening.
- Estimated eGFR ≥25 and ≤120 mL/min/1.73 m2 at Screening for adults \& eGFR ≥25mL/min/1.73 m2 for adolescent patients (\<18 years)
- Seated blood pressure ≤160/100 mm Hg (mean of 3 values) (patients ≥18 years of age) or between the 5th and 95th percentile for age, sex, and height (patients \<18 years of age) at Screening
- Body weight ≥35 kg (all patients) AND a body mass index (BMI) ≤40 kg/m2 (patients ≥18 years of age) or between the 5th and 98th percentile for age and sex (patients \<18 years of age) at Screening.
- A female patient is eligible to participate if she is not pregnant or planning to become pregnant during the study, not breastfeeding, and at least one of the following conditions applies:
- Is not of childbearing potential
- If of childbearing potential and beginning at menarche, agrees to use a highly effective method of contraception consistently during the treatment period.
- A male patient with a female partner of childbearing potential is eligible to participate if he agrees to use acceptable contraception
- A patient or parent/legal guardian (as appropriate) who is capable of giving signed informed consent, and where required, the patient is capable of providing assent.
Exclusion
- Has FSGS secondary to another condition.
- Patients with nephrotic syndrome (\>3.5 g/day proteinuria and serum albumin \<30 g/L) who have not previously been treated with standard of care FSGS-directed therapies (including steroids).
- History of type 1 diabetes mellitus, or uncontrolled type 2 diabetes mellitus (defined as glycated hemoglobin \[HbA1c\] \>8% at Screening)
- History of lymphoma, leukemia, or any active malignancy within the past 2 years (except for basal cell or squamous cell carcinomas of the skin or cervical carcinoma in situ that have been resected and with no evidence of metastatic disease).
- Active clinically significant hepatobiliary disease.
- Documented history of heart failure (New York Heart Association Class III/IV) or a major adverse cardiac event within 12 weeks prior to Screening.
- Has a physical, medical, or psychological condition, that in the opinion of the Investigator, may interfere with the evaluation the study.
- The patient has a history of alcohol or illicit drug use disorder within 1 year prior to Screening.
- Had a prior organ transplant or stem cell transplant, with the exception of corneal transplant.
- Positive screening assessment for viral hepatitis B surface antigen, or anti-hepatitis C virus (HCV) antibody AND positive HCV RNA, or human immunodeficiency virus 1 and 2.
- Serum potassium levels \>5.5 mmol/L at Screening.
- Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) \>2 × upper limit of normal (ULN) at Screening.
- Treatment with non-steroid immunosuppressant agents including biological drugs (e.g. rituximab), calcineurin inhibitors, cyclophosphamide, azathioprine, or mycophenolate mofetil within 12 weeks prior to Screening.
- History of serious side effects or allergic response to an angiotensin II antagonist or has a known sensitivity to any components in the IP.
- Unable to swallow oral medication.
- Prior participation in any Dimerix-sponsored DMX-200 clinical study.
- Participation in a clinical study with an investigational product (IP) within 28 days or 5 half-lives (whichever is longer) prior to Screening or plans to participate in another study during the course of this study.
- Are study site personnel directly affiliated with this study and their immediate families
- OLE PERIOD
- Inclusion Criteria:
- A patient or parent/legal guardian (as appropriate) who is capable of giving signed informed consent, and where required, the patient is capable of providing assent.
- Patients who have completed participation in the double-blind period, including the Week 104 visit, and who may derive benefit from (continued) treatment with DMX-200, and/or continued follow-up
- The patient received blinded Investigational Product throughout the duration of the double-blind period up to the Week 104 visit
- The patient continues to meet the contraceptive requirements
Key Trial Info
Start Date :
May 30 2022
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
December 1 2029
Estimated Enrollment :
286 Patients enrolled
Trial Details
Trial ID
NCT05183646
Start Date
May 30 2022
End Date
December 1 2029
Last Update
December 1 2025
Active Locations (220)
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1
University of Alabama at Birmingham
Birmingham, Alabama, United States, 35233
2
Phoenix Children's Hospital
Phoenix, Arizona, United States, 85016
3
Arizona Kidney Disease and Hypertension Center
Phoenix, Arizona, United States, 85027
4
Loma Linda University Medical Center
Loma Linda, California, United States, 92354