Phase 3 Chronic Kidney Disease Trial, Terminated NCT03608033 Sponsor: Omeros Corporation Condition: Chronic Kidney Disease
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Trial results

AI generated results summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

According to the results reported on ClinicalTrials.gov, this trial (NCT03608033) enrolled 181 people in the OMS721 group and 179 people in the placebo group during the treatment period. The trial was measuring changes in the amount of protein leaking into the urine over 24 hours (known as proteinuria — a marker that doctors monitor in certain kidney conditions), as well as changes in how well the kidneys were filtering blood over time. The main focus was on participants who had higher levels of protein in their urine at the start of the study (2 grams or more per day). The reported data shows that, at 36 weeks, participants in the high-proteinuria group who received OMS721 had a 21.3% reduction in urinary protein compared to their starting level, while those in the placebo group had a 16.6% reduction. For all participants combined (those with more than 1 gram of protein per day at the start), the reported reductions were 14.2% for the OMS721 group and 10.3% for the placebo group. Regarding kidney filtration rate — a measure of how well the kidneys are working — the reported data shows a decline of 8.3 units per year in the high-proteinuria OMS721 group versus 7.9 units per year in the placebo group, and across all participants, a decline of 6.4 units per year for OMS721 versus 7.6 units per year for placebo. Later time-point measurements (between 36 and 48 weeks, and 36 and 72 weeks) showed small increases in urinary protein in both groups, with the reported figures being similar between OMS721 and placebo. It is also worth noting that a relatively large number of participants did not complete the treatment period — 144 out of 181 in the OMS721 group and 140 out of 179 in the placebo group — though the reasons for this were not detailed in the submitted data. These are the results as reported to ClinicalTrials.gov. They are not medical advice — always discuss what they mean for you with your doctor.

These are the results as reported to ClinicalTrials.gov, not medical advice. Verify independently with the trial site and discuss what they mean for you with your doctor.

Phase 3 Chronic Kidney Disease Trial, Terminated

NCT03608033
Terminated Phase 3 🇦🇺 Australian site

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • You are 18 years of age or older at the time of screening
  • You have been diagnosed with IgA nephropathy (a kidney disease), confirmed by a biopsy taken within the last 8 years
  • Your medical records show a significant level of protein in your urine within the last 6 months, or a urine test at screening shows a raised protein level
  • Two urine measurements taken at the start of the trial both show a high level of protein
  • Your kidneys are working at a reasonable level, based on a blood test measuring kidney function (confirm with trial site for exact values)

Who may not be able to join:

  • You have taken certain immune-suppressing medications (such as azathioprine, cyclophosphamide, or eculizumab) in the last 8 weeks for your kidney condition
  • You have taken steroid tablets or injections (such as prednisone) in the last 8 weeks
  • Your blood pressure is not well controlled and remains very high even while taking two or more blood pressure medications
  • You are pregnant, breastfeeding, planning to become pregnant, or a male planning to father a child during the trial or within 12 weeks after the last dose of the study drug
  • You have Type 1 diabetes, poorly controlled diabetes, lupus, a related condition called IgA vasculitis, or another kidney disease
  • You have a serious illness or condition that could affect the trial results or may be life-threatening within the next 2 years
  • You have previously had a kidney transplant
  • You have a known allergy to any ingredient in the study drug
  • Your kidney function has declined very rapidly in the months before screening (confirm with trial site for exact values)
  • Your routine blood or urine lab results show significant abnormalities (confirm with trial site)
  • You have HIV, a weakened immune system, active hepatitis C, or hepatitis B infection (some people with past hepatitis exposure may still be eligible — confirm with trial site)
  • You have been diagnosed with cancer, unless it was a skin cancer that was fully treated, a fully cured localised cancer, or you have been cancer-free for 5 or more years
  • You have taken part in another clinical drug or device trial within the last 30 days (or longer, depending on the previous drug — confirm with trial site)
  • You have recently started or changed the dose of a type of diabetes/kidney medication called an SGLT2 inhibitor during the screening period (a stable dose taken for at least 8 weeks before screening may be acceptable)
  • You have taken a medication called Tarpeyo (budesonide) or another approved IgA nephropathy treatment within the last 6 months, or are taking it during the screening period
  • You have taken a medication called Kerendia (finerenone) within the last 6 months, or are taking it during the screening period
  • You have recently started a medication called Filspari (sparsentan) within the last 3 months (a stable dose started at least 3 months before screening may be acceptable — confirm with trial site)

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 6 July 2026
Phase 3: approximately ~65% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Australian sites

Omeros Investigational Site, Garran, Australian Capital Territory, Woden
Omeros Investigational Site, Footscray, Saint Albans
Omeros Investigational Site, Adelaide, South Australia
Omeros Investigational Site, Clayton, Victoria

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Terminated
Phase
Phase 3
Sponsor
Omeros Corporation
Registry
ClinicalTrials.gov
Start date
5 April 2018
Est. completion
12 January 2024

Where this trial is recruiting

🇦🇷 Argentina 🇦🇺 Australia 🇧🇪 Belgium 🇧🇬 Bulgaria 🇨🇦 Canada 🇨🇿 Czechia 🇩🇪 Germany 🇬🇷 Greece 🇭🇺 Hungary 🇮🇳 India 🇮🇹 Italy 🇱🇹 Lithuania 🇵🇱 Poland 🇸🇬 Singapore 🇸🇰 Slovakia 🇰🇷 South Korea 🇪🇸 Spain 🇸🇪 Sweden 🇹🇼 Taiwan 🇹🇭 Thailand Turkey (Türkiye) 🇬🇧 United Kingdom 🇺🇸 United States

4 site(s) in Australia. Confirm current status and contact details directly with the trial site.

Primary endpoints

Percent Change in 24-hour UPE in g/Day Compared to Baseline

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 6 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov