Evaluating the safety of Gemini in patients with advanced chronic kidney disease

A Phase 1b, Randomized, Placebo-Controlled, Single-Blind, Single Ascending Dose Study in Subjects With Stage 3 or 4 Chronic Kidney Disease

PHASE1; PHASE2 · Revelation Biosciences, Inc · NCT06863467

This study is testing if an intravenous drug called Gemini is safe for adults with advanced chronic kidney disease.

Quick facts

PhasePHASE1; PHASE2
Study typeInterventional
Enrollment40 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorRevelation Biosciences, Inc (industry)
Locations3 sites (Chula Vista, California and 2 other locations)
Trial IDNCT06863467 on ClinicalTrials.gov

What this trial studies

This study evaluates the safety and tolerability of intravenous Gemini in adults with stage 3 or 4 chronic kidney disease through a randomized, placebo-controlled, single-blind, single-ascending dose design. Up to 40 subjects will be enrolled across five cohorts, with each cohort receiving a single IV dose of Gemini or placebo. The study will assess pharmacokinetics and pharmacodynamic markers to determine the drug's effects and safety profile. A Safety Review Committee will monitor adverse events and decide on dose escalation based on safety data.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 80 with stage 3 or 4 chronic kidney disease and an eGFR between 15 and 60.

Not a fit: Patients with chronic kidney disease secondary to rapidly progressive glomerulonephritis or those currently on specific medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a new treatment option for patients with advanced chronic kidney disease.

How similar studies have performed: While this approach is novel, similar studies evaluating safety and tolerability of new treatments in chronic kidney disease have shown promise.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female subjects ≥18 to ≤ 80 years of age at screening
* Willing and able to provide written informed consent
* eGFR of ≥ 15 and ≤ 60 per
* Female subjects must be of non-childbearing potential or using a medically acceptable contraceptive regimen
* Male subjects must be surgically sterile or using a medically acceptable contraceptive regimen
* Willing and able to tolerate IV infusions and multiple blood draws
* Willing to comply with the study schedule, restrictions, and requirements

Exclusion Criteria:

* CKD Secondary to or associated with any of the following:

  1. History of rapidly progressive glomerulonephritis (RPGN)
  2. Glomerulonephritis requiring any use of immunosuppression in the last 6 months
* Body mass index ≤ 19.0 kg/m2 or ≥ 40.0 kg/m2
* Currently taking a sodium/glucose cotransporter-2 inhibitor (SGLT2i) or non-steroidal mineralocorticoidantagonist (MRA) requiring dose adjustments within 12 weeks prior to Day 1 or if dose is anticipated to change
* Currently taking tumor necrosis factor (TNF) inhibitors, TNF blocker, interleukin-6 (IL-6) blockers or interleukin-1 (IL-1) blocking drugs
* Receiving steroids or any other immunosuppressive agent or anti-inflammatory drugs
* Currently taking an angiotensin-converting enzyme inhibitor (ACEi) and/or an angiotensin II receptor blocker (ARB) requiring dose adjustments
* Any use of direct renin inhibitors;
* Live vaccinations within 3 months prior to the start of the trial or expected during the trial
* Received a mRNA vaccine within 4 weeks
* Uncontrolled diabetes (HbA1c \> 11.0%)
* Clinical laboratory results of ALT and/or AST that are \> 2.5X upper limit of normal (ULN)
* Clinical Laboratory results of Total bilirubin that is \> 1.5X the ULN
* Has a Urine Albumin-to-Creatinine Ratio (uACR) level \> 3000 mg/g
* Age-related macular degeneration (AMD), diabetic macular edema or active diabetic proliferative retinopathy that was likely to require treatment during the trial
* Uncontrolled hypertension
* New York Heart Association Class IV congestive heart failure
* Any organ transplant recipient, or a planned transplant during the study
* Currently has known Hepatitis B or uncontrolled human immunodeficiency virus (HIV) or uncontrolled Hepatitis C virus (HCV) that may interfere with the study
* Myocardial infarction, acute coronary syndrome, or stroke within 6 months
* History of myelodysplastic syndrome
* History of deep vein thrombosis (DVT) that required active treatment in the last 6 months. Superficial thrombosis is not excluded
* History of hemosiderosis or hemochromatosis
* History of rheumatoid arthritis or systemic lupus erythematosus (SLE)
* History of drug use that may interfere with the study or study result
* Red cell transfusion within 12 weeks
* History of malignancy in the previous 5 years except for curatively resected basal cell carcinoma of skin, squamous cell carcinoma of skin or cervical carcinoma in situ
* Coronavirus disease 2019 (COVID-19) diagnosis within 1 month
* Evidence of active infection unless subject is appropriate for this study per the Investigator
* Life expectancy less than 6 months
* Intolerance to study medication
* Pregnancy or lactation
* Received treatment with any investigational product in any clinical study within 30 days prior to administration of study drug or five half-lives, whichever is longer
* In the opinion of the Investigator or identified Sub-I(s), any other disease processes or confounding variables that would inappropriately alter the outcome of the study

Where this trial is running

Chula Vista, California and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Renal Insufficiency, Chronic, Chronic Kidney Disease stage3, Chronic Kidney Disease stage4

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.