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Trial ยท NCT03847909

A Study to Evaluate DCR-PHXC in Children and Adults With Primary Hyperoxaluria Type 1 and Primary Hyperoxaluria Type 2

NCT03847909, Phase 2, Completed, Novo Nordisk A/S; results first posted 2024-05-22

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study to Evaluate DCR-PHXC in Children and Adults With Primary Hyperoxaluria Type 1 and Primary Hyperoxaluria Type 2. Trials, record NCT03847909. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03847909

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Study to Evaluate DCR-PHXC in Children and Adults With Primary Hyperoxaluria Type 1 and Primary Hyperoxaluria Type 2
NCT number
NCT03847909
Status
Completed
Phases
Phase 2
Enrollment
35 participants, actual
Lead sponsor
Novo Nordisk A/S
Conditions
Primary Hyperoxaluria Type 1 (PH1), Primary Hyperoxaluria Type 2 (PH2), Kidney Diseases, Urologic Diseases, Genetic Disease
Interventions
DCR-PHXC, Sterile Normal Saline (0.9% NaCl)
First posted
2019-02-20
Last updated
2024-05-22
Results first posted
2024-05-22

Source ClinicalTrials.gov

Registered outcomes37

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryAUC From Day 90 To Day 180, Based on Percent Change From Baseline in 24-Hour UoxFrom 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.
SecondaryPercentage of Participants Whose 24-hour Uox Values Normalized or Near-normalized on at Least 2 Consecutive VisitsFrom Day 90 to 180
Percentage of participants whose 24-hour Uox values normalized or near-normalized on at least 2 consecutive visits are presented. Normalization of Uox was defined as less than (\<) 0.46 millimole per 24 hours (mmol/24 hours) and near normalization was defined as greater than or equal to (\>=) 0.46 to \< 0.60 mmol/24 hours (values adjusted per 1.73 square meter \[1.73 m\^2\] body surface area \[BSA\] in participants aged \<18 years).
SecondaryPercent Change From Baseline to Day 180 in the Summed Surface Area of Kidney StonesBaseline, Day 180Percent change from baseline to Day 180 in the summed surface area measured in millimetre square (mm\^2) of kidney stones is presented.
SecondaryPercent Change From Baseline to Day 180 in the Number of Kidney StonesBaseline, Day 180Percent change from baseline to Day 180 in the number of kidney stones is presented.
SecondaryPercent Change From Baseline to Day 180 in Plasma Oxalate (For Adults Only)Baseline, Day 180Percent change from baseline to Day 180 in plasma oxalate (for adults only) is presented.
SecondaryRate of Change in Estimated Glomerular Filtration Rate (eGFR) From Baseline to Day 180Baseline, Day 180Monthly rate of eGFR change is presented. eGFR was calculated using Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) and creatinine-based equation.
SecondaryNumber of Treatment Emergent Adverse Events (TEAEs) And Serious Treatment Emergent Adverse Events (TEAEs)From Baseline up to Day 180
Number of TEAEs and TESAEs are presented. An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was defined as any untoward medical occurrence that, at any dose: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalisation, results in persistent disability/incapacity or is a congenital anomaly/birth defect. TEAE was defined as any AE with an onset date/time on or after administration (including any partial administration) of the first dose of study intervention and through the study completion date from the end of study case report form (CRF).
SecondaryChange From Baseline in Electrocardiogram (ECG): Heart RateBaseline, Day 180Change from baseline in heart rate is presented.
SecondaryChange From Baseline in ECG: PR Interval, QRS Duration, QT Interval, QTcB Interval, QTcF Interval and RR IntervalBaseline, Day 180Change from baseline in PR interval, QRS duration, QT interval, QTcB interval, QTcF interval and RR interval is presented.
SecondaryNumber of Participants With Most Abnormal Post-Baseline Shift in Physical ExaminationBaseline up to Day 180
Number of participants who had most abnormal post-baseline shift in physical examination are presented. Physical examination shifts were categories into 4 categories: 1) missing; 2) normal; 3) abnormal-not clinically significant (NCS) and 4) abnormal-clinically significant (CS). Each category was presented according body systems including: 1) eyes, ears, nose and throat; 2) chest/respiratory; 3) heart/cardiovascular; 4) gastrointestinal/liver; 5) musculoskeletal/extremities; 6) dermatological/skin; 7) thyroid/neck; 8) lymph nodes; 9) neurological.

Outcomes37

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYAUC From Day 90 To Day 180, Based on Percent Change From Baseline in 24-Hour UoxFrom Day 90 to 180
MITT population included all participants in the ITT population who had at least one efficacy assessment after the Day 90 dosing visit, where the ITT population included all participants who were randomized and had at least one post-baseline efficacy assessment.
Percent change in 24-hour Uox AUCLEAST_SQUARES_MEAN
SECONDARYPercentage of Participants Whose 24-hour Uox Values Normalized or Near-normalized on at Least 2 Consecutive VisitsFrom Day 90 to 180
Modified Intent-to-treat population (MITT) included all participants in the intent-to-treat (ITT) population who had at least one efficacy assessment after the Day 90 dosing visit where ITT population included all participants who were randomized and had at least one post-baseline efficacy assessment.
Percentage of participantsNUMBER
SECONDARYPercent Change From Baseline to Day 180 in the Summed Surface Area of Kidney StonesBaseline, Day 180The ITT population included all participants who were randomised and had at least one post-baseline efficacy assessment. Number of participants analysed signifies participants with available data.Percent change in summed surface areaMEDIAN
SECONDARYPercent Change From Baseline to Day 180 in the Number of Kidney StonesBaseline, Day 180The ITT population included all participants who were randomised and had at least one post-baseline efficacy assessment. Number of participants analysed signifies participants with available data.Percent change in kidney stone numbersMEDIAN
SECONDARYPercent Change From Baseline to Day 180 in Plasma Oxalate (For Adults Only)Baseline, Day 180
Analysis population included all adult participants from ITT population who were randomised and had at least one post-baseline efficacy assessment. Number of participants analysed signifies participants with available data.
Percent change in plasma oxalateMEDIAN
SECONDARYRate of Change in Estimated Glomerular Filtration Rate (eGFR) From Baseline to Day 180Baseline, Day 180The ITT population included all participants who were randomised and had at least one post-baseline efficacy assessment.mL/minute/1.73 m^2MEAN
SECONDARYNumber of Treatment Emergent Adverse Events (TEAEs) And Serious Treatment Emergent Adverse Events (TEAEs)From Baseline up to Day 180The safety population included all participants randomly assigned to study intervention and who took at least 1 partial or full dose of study intervention.EventsNUMBER
SECONDARYChange From Baseline in Electrocardiogram (ECG): Heart RateBaseline, Day 180
The safety population included all participants randomly assigned to study intervention and who took at least 1 partial or full dose of study intervention. Number of participants analysed signifies participants with available data.
beats per minute (beats/min)MEAN
SECONDARYChange From Baseline in ECG: PR Interval, QRS Duration, QT Interval, QTcB Interval, QTcF Interval and RR IntervalBaseline, Day 180
The safety population included all participants randomly assigned to study intervention and who took at least 1 partial or full dose of study intervention. Number of participants analysed signifies participants with available data.
milliseconds (msec)MEAN
SECONDARYNumber of Participants With Most Abnormal Post-Baseline Shift in Physical ExaminationBaseline up to Day 180The safety population included all participants randomly assigned to study intervention and who took at least 1 partial or full dose of study intervention.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group198

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
AUC From Day 90 To Day 180, Based on Percent Change From Baseline in 24-Hour UoxDCR-PHXC3507.4Standard Error 788.49Percent change in 24-hour Uox AUC
AUC From Day 90 To Day 180, Based on Percent Change From Baseline in 24-Hour UoxPlacebo-1664.4Standard Error 1189.96Percent change in 24-hour Uox AUC
Percentage of Participants Whose 24-hour Uox Values Normalized or Near-normalized on at Least 2 Consecutive VisitsDCR-PHXC50Percentage of participants
Percentage of Participants Whose 24-hour Uox Values Normalized or Near-normalized on at Least 2 Consecutive VisitsPlacebo0Percentage of participants
Percent Change From Baseline to Day 180 in the Summed Surface Area of Kidney StonesDCR-PHXC-2.13Full Range -100.0 to 228.6Percent change in summed surface area
Percent Change From Baseline to Day 180 in the Summed Surface Area of Kidney StonesPlacebo21.77Full Range -24.3 to 1500.0Percent change in summed surface area
Percent Change From Baseline to Day 180 in the Number of Kidney StonesDCR-PHXC0.00Full Range -100.0 to 200.0Percent change in kidney stone numbers
Percent Change From Baseline to Day 180 in the Number of Kidney StonesPlacebo0.00Full Range -94.1 to 100.0Percent change in kidney stone numbers
Percent Change From Baseline to Day 180 in Plasma Oxalate (For Adults Only)DCR-PHXC-25.00Full Range -61.9 to 22.2Percent change in plasma oxalate
Percent Change From Baseline to Day 180 in Plasma Oxalate (For Adults Only)Placebo-0.00Full Range -25.0 to 350.0Percent change in plasma oxalate

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDCR-PHXC23
Overall StudySTARTEDPlacebo12
Overall StudySafety PopulationDCR-PHXC23
Overall StudySafety PopulationPlacebo12
Overall StudyIntent to Treat (ITT) PopulationDCR-PHXC23
Overall StudyIntent to Treat (ITT) PopulationPlacebo12
Overall StudyModified ITT (MITT) PopulationDCR-PHXC22
Overall StudyModified ITT (MITT) PopulationPlacebo12
Overall StudyCOMPLETEDDCR-PHXC22
Overall StudyCOMPLETEDPlacebo11

Adverse events92

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherInjection site erythemaGeneral disordersDCR-PHXC523
otherInjection site erythemaGeneral disordersPlacebo012
otherInjection site painGeneral disordersDCR-PHXC223
otherInjection site painGeneral disordersPlacebo012
otherFatigueGeneral disordersDCR-PHXC123
otherFatigueGeneral disordersPlacebo212
otherDysmenorrhoeaReproductive system and breast disordersDCR-PHXC223
otherDysmenorrhoeaReproductive system and breast disordersPlacebo012
otherMenstrual disorderReproductive system and breast disordersDCR-PHXC023
otherMenstrual disorderReproductive system and breast disordersPlacebo112

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDCR-PHXC023
Total, all-cause mortalityPlacebo012
Total, other adverse eventsDCR-PHXC1623
Total, other adverse eventsPlacebo1012
Total, serious adverse eventsDCR-PHXC123
Total, serious adverse eventsPlacebo212

Papers3

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
36007597DERIVEDPubMed
40193200DERIVEDPubMed
40601241DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
DCR-PHXC vs Placebo: deaths from any causeTrial comparisons
DCR-PHXC vs Placebo: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03847909

GET https://conductscience.org/api/trials/v1/NCT03847909/registered?page=2