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A phase II study for treatment of proteinuria in patients currently on irbesartan therapy

An open label, Phase II dose escalation and expansion study to evaluate the safety and efficacy of propagermanium (PPG) added to stable angiotensin receptor blocker therapy (irbesartan) for the treatment of patients with proteinuria

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12614001132639
Acronym
DMX-200
Enrollment
27
Registered
2014-10-23
Start date
2015-09-03
Completion date
2016-11-07
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The study is to investigate the safety and tolerability of propagermanium on patients exhibiting proteinuria and who are already taking standard irbesartan therapy.

Interventions

The intervention is propagermanium (PPG), which is an oral capsule taken three times daily. Participants must be taking stable irbesartan. This is a dose escalation study, in which each patient receives increasing doses of PPG every 4 weeks (30mg, 60mg, 90mg, 150mg, 240mg per day) until normalisation of proteinuria. Once proteinuria is within the normal range the current dose becomes that patients final dose, and the patient will remain on their final dose for up to a further 8 weeks. The expo

The intervention is propagermanium (PPG), which is an oral capsule taken three times daily. Participants must be taking stable irbesartan. This is a dose escalation study, in which each patient receives increasing doses of PPG every 4 weeks (30mg, 60mg, 90mg, 150mg, 240mg per day) until normalisation of proteinuria. Once proteinuria is within the normal range the current dose becomes that patients final dose, and the patient will remain on their final dose for up to a further 8 weeks. The exposure period ranges from 84 days (if proteinuria is normalised at 30mg) though to 168 days (if a patient is escalated through all doses to the maximal dose). Additionally, there is a screening period ranging from 14 to 42 days and a follow-up period of 28 days where the participant is not exposed to propagermanium.

Sponsors

Dimerix Bioscience Pty Ltd
Lead SponsorCommercial sector/Industry

Study design

Allocation
Non-randomised trial
Intervention model
Other
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Capable of providing informed consent. Women of child bearing potential or men of reproductive potential must be using adequate birth control measures. Previously diagnosed with protein in the urine and have a protein/creatinine ratio (PCR) of greater than 50 (mg/mmol) based on 24 hour urine collection. Patients with a defined level of kidney function as follows: - serum creatinine 115 to 291 micromol/L inclusive for women - serum creatinine 132 to 309 micromol/L inclusive for men - or estimated GFR 20-60 Taking stable irbesartan with BP in range of 110/70 to 150/95 mmHg. (Stable is defined as taking the same dose of IRB for at least 90 days prior to baseline). Liver function tests less than or equal to 2X upper limit of normal Patients taking a diuretic must be on a stable dose for at least 2 months.

Exclusion criteria

Rapidly progressing proteinuria (rapidly progressing is defined as a trebling of proteinuria over the preceding 3 month period) Recent gastrointestinal bleeding Heart disease that is not considered stable Acute kidney injury within the 3 months before screening Are receiving any ACE inhibitor, NSAID therapy or spironolactone Have uncontrolled blood pressure Required to take drugs that change the immune system (immunosupressants) HIV infection Viral Hepatitis B or C, liver infection, liver cirrhosis or any clinically significant liver damage. (Liver function tests > 2X ULN) Cancer within 3 years (excluding non melanoma skin cancer) or high risk of developing cancer Major surgery within 3 months of screening or planned during the study period.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026