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RGLS8429

Phase 1

Autosomal Dominant Polycystic Kidney Disease | Small molecule | Nephrology |Regulus Therapeutics Inc.|Trials Updated: Jun 3, 2025

RGLS8429 development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since Jun 2022

RGLS8429 target and mechanism

Molecular targetmicroRNAs
Target classRna
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment68

FDA Designations

No designations recorded

RGLS8429 clinical trials

RGLS8429 · 1 trial · 3 indications

Phase 1 1
NCT05521191A Study of RGLS8429 in Patients With Autosomal Dominant Polycystic Kidney DiseaseAutosomal Dominant Polycystic Kidney Disease
COMPLETED68 Analytics
PHASE1COMPLETED
A Study of RGLS8429 in Patients With Autosomal Dominant Polycystic Kidney Disease
Autosomal Dominant Polycystic Kidney DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety and tolerability of RGLS4829: Incidence of AEs
Baseline to Day 113

Incidence of adverse events over time

Impact of RGLS8429 on ADPKD biomarkers
Baseline to Day 113

Change from baseline in PC1, PC2, NGAL, and KIM-1 urine biomarkers

Secondary Endpoints

Impact of RGLS8429 on height-adjusted total kidney volume (htTKV)
Baseline to Day 113
Pharmacokinetic properties of RGLS8429: Cmax
Baseline to Day 113
Pharmacokinetic properties of RGLS8429: Tmax
Baseline to Day 113
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RGLS8429EXPERIMENTALThe randomized,double blind part of the study (Part A) will consist of three sequential cohorts of approximately 12 subjects each randomized centrally to receive RGLS8429 or placebo by subcutaneous injection every other week (Q2W) x 7 doses (36 subjects total). * Cohort 1: first dose level of RGLS8429 or placebo * Cohort 2: second dose level of RGLS8429 or placebo * Cohort 3: third dose level of RGLS8429 or placebo
PlaceboEXPERIMENTALThe randomized double blind part of the study (Part A) will consist of three sequential cohorts of approximately 12 subjects each randomized centrally to receive RGLS8429 or placebo by subcutaneous injection every other week (Q2W) x 7 doses (36 subjects total). * Cohort 1: first dose level of RGLS8429 or placebo * Cohort 2: second dose level of RGLS8429 or placebo * Cohort 3: third dose level of RGLS8429 or placebo
Open Label Fixed Dose RGLS8429EXPERIMENTALThe open-label fixed dose part of the study (Part B and Cohort 4) will consist of a single cohort of up to 30 subjects each receiving 300 mg RGLS8429.

Interventions

NameTypeDescription
RGLS8429DRUGSolution for subcutaneous injection
PlaceboDRUGSolution for subcutaneous injection
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Eligibility Criteria

Age Range18 Years to 70 Years
SexALL
Healthy VolunteersNo
Study Sites21

Key Inclusion Criteria: 1. Male or female ADPKD patients, 18 to 70 years old 2. Class 1C, 1D, or 1E Mayo Imaging Classification of ADPKD (based upon either the MRI obtained during screening, or a prior MRI obtained within 5 years of screening with documented Mayo classification) 3. eGFR between 30 ...

Countries:United States
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Frequently asked questions about RGLS8429

What is RGLS8429?

RGLS8429 is an investigational small molecule developed by Regulus Therapeutics Inc. for autosomal dominant polycystic kidney disease, or ADPKD. It is designed to target microRNAs, a class of RNA molecules. The drug has completed a Phase 1 clinical trial and is not approved for any use.

What is RGLS8429 used for in autosomal dominant polycystic kidney disease?

RGLS8429 is being developed as a treatment for autosomal dominant polycystic kidney disease, a genetic kidney disorder. It is an investigational therapy and has not been approved for marketing. Its only completed clinical study enrolled adults with ADPKD in the United States.

What does RGLS8429 target?

RGLS8429 targets microRNAs, which are short RNA molecules that regulate gene expression. By acting on microRNAs, the small molecule is intended to influence the biological pathways involved in autosomal dominant polycystic kidney disease. Regulus Therapeutics Inc. is the developer of this RNA-targeted candidate.

Who is developing RGLS8429?

RGLS8429 is being developed by Regulus Therapeutics Inc., a biopharmaceutical company that trades under the ticker RGLS. The company is advancing the small molecule for autosomal dominant polycystic kidney disease. No partner or collaborator is named for this program.

What phase is RGLS8429 in?

RGLS8429 has completed a Phase 1 clinical trial. It is an investigational drug and is not FDA approved. The completed study was a randomized, double-blind, controlled Phase 1 trial conducted in the United States. No active trials of RGLS8429 are currently listed.

What clinical trial is RGLS8429 in?

RGLS8429 has been studied in one completed clinical trial, NCT05521191, titled A Study of RGLS8429 in Patients With Autosomal Dominant Polycystic Kidney Disease. The Phase 1 trial enrolled 68 participants aged 18 years and older in the United States and used a randomized, double-blind, controlled design.