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DCR-PHXC

Phase 3

Primary Hyperoxaluria Type 1 (PH1) | Small molecule | Rare Disease |Novo Nordisk A/S|Last Updated: May 30, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment110
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04042402Long Term Extension Study in Patients With Primary HyperoxaluriaPHASE3 ACTIVE NOT_RECRUITING 75Jul 9, 2019Apr 1, 2030May 30, 202523 United States, Australia +11
NCT03847909A Study to Evaluate DCR-PHXC in Children and Adults With Primary Hyperoxaluria Type 1 and Primary Hyperoxaluria Type 2PHASE2 COMPLETED 35Oct 28, 2019Jun 29, 2021May 22, 202428 United States, Australia +13
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Study Endpoints
Primary Endpoints
The annual rate of decline in eGFR in participants with PH1
Annual change from baseline

To evaluate the effect of DCR PHXC on estimated glomerular filtration rate (eGFR) in participants with PH1

AUC From Day 90 To Day 180, Based on Percent Change From Baseline in 24-Hour Uox
From Day 90 to 180

The AUC of 24-hour urinary oxalate (Uox) from Day 90 to Day 180, based on percent change from baseline, was compared between the active treatment group and placebo group. A multiple imputation approach was used to handle missing Uox data and then calculate the AUC.

Secondary Endpoints
The incidence and severity of treatment-emergent adverse events (TEAE) and SAEs associated with abnormal 12 lead electrocardiogram (ECG) readings
TEAEs and SAEs are evaluated monthly for 6 years
The incidence and severity of treatment-emergent adverse events (TEAE) and SAEs associated with abnormal physical examination findings
TEAEs and SAEs are evaluated monthly for 6 years
The incidence and severity of treatment-emergent adverse events (TEAE) and SAEs associated with abnormal vital signs
TEAEs and SAEs are evaluated monthly for 6 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Open LabelEXPERIMENTALOpen label, monthly subcutaneous injection
DCR-PHXCEXPERIMENTALIntervention, drug, DCR-PHXC
Placebo - Sterile Normal Saline (0.9% NaCl)PLACEBO_COMPARATORPlacebo, sterile normal saline (0.9% NaCl) for subcutaneous (SC) injection
Interventions
NameTypeDescription
DCR-PHXCDRUGMultiple fixed doses of DCR-PHXC by subcutaneous (SC) injection
Sterile Normal Saline (0.9% NaCl)DRUGSterile Normal Saline (0.9% NaCl) for subcutaneous (SC) injection, administered at same injection volume as DCR-PHXC, to serve as placebo
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Eligibility Criteria
Age Range6 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites23

Key Inclusion Criteria: •Participant successfully completed a Dicerna Pharmaceuticals, Inc. study of DCR PHXC. OR Participant is the sibling of a participant who successfully completed a Dicerna Pharmaceuticals, Inc. study of DCR PHXC. Siblings must be younger than 18 years of age and must have ge...

Countries:United StatesAustraliaCanadaFranceGermanyItalyJapanLebanonNetherlandsNorwaySpainTurkey (Türkiye)United KingdomIsraelNew ZealandPolandRomania
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04042402primaryCompletionDate: changed
LOWMay 24, 2026NCT04042402studyFirstPostDate: changed