nedosiran
DrugMonthly subcutaneous dosing throughout study period
Other names: DCR-PHXC
NCT Number: NCT05001269
The aim of this study is to evaluate nedosiran in participants 11 years of age and younger who have Primary Hyperoxaluria with relatively intact renal function.
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Notify MeUp to 11 year
All sexes
Interventional
Phase 2
Clinical Research Site, Hamilton, Ontario, Canada
This is an open-label, repeat-dose, Phase 2 study of nedosiran in participants 11 years of age or younger who have PH1, PH2 or PH 3 and relatively intact renal function.
Following the up-to-35- day screening period, participants will return to the clinic for monthly dosing visits through Day 180.
The total duration of this study is approximately 15 months from first participant, first visit, until last participant, last visit.
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Male participants:
A male participant with a female partner of childbearing potential must agree to use contraception, as detailed in Section 10.5.2, during the treatment period and for at least 12 weeks after the last dose of study intervention and refrain from donating sperm during this period.
Female participants:
A female participant is eligible to participate if she is not pregnant (see Section 10.5.1), not breastfeeding, and at least 1 of the following conditions applies:
Not a woman of childbearing potential (WOCBP) as defined in Section 10.5.1 OR A WOCBP who agrees to follow the contraceptive guidance in Section 10.5.2 during the treatment period and for at least 12 weeks after the last dose of study intervention.
Contraceptive use by men or women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
Note: If the childbearing potential changes after start of the study (e.g., a premenarchal female participant experiences menarche) or the risk of pregnancy changes (e.g., a female participant who is not heterosexually active becomes active), the participant must discuss this with the Investigator, who should determine if a female participant must begin a highly effective method of contraception or a male participant must use a condom. If reproductive status is questionable, additional evaluation should be considered.
a. For children younger than 12 years of age, assent will be based on local regulation. If assent is required, participant must be able to provide written assent for participation.
Exclusion criteria
a. For IMPs with the potential to reduce urine and/or plasma oxalate concentrations, these concentrations must have returned to historical baseline levels prior to Screening
Monthly subcutaneous dosing throughout study period
Other names: DCR-PHXC
Time frame: Baseline (Week 0), Month 6
This outcome measure reported percent change from baseline to Month 6 in spot urinary oxalate-to-creatinine ratio in pediatric participants (birth to 11 years of age) with genetically confirmed primary hyperoxaluria type 1 (PH1), primary hyperoxaluria type 2 (PH2), or primary hyperoxaluria type 3 (PH3) subgroups.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported absolute change from baseline to Month 6 in spot urinary oxalate-to-creatinine ratio in pediatric participants (birth to 11 years of age) with genetically confirmed PH1, PH2, or PH3 subgroups.
Time frame: From baseline (Week 0) up to Month 6
This outcome measure reported number of incidents of TEAEs and SAEs. 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 is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, and medical events. An AE will be defined as treatment emergent if they have an onset or worsen in severity after a participant receives the study intervention.
Time frame: From baseline (Week 0) up to Month 6
This outcome measure reported nature of TEAEs and SAEs. An AE is any untoward medical occurrence in clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalisation or prolongation of existing hospitalisation, results in persistent disability/incapacity, is a congenital anomaly/birth defect, and medical events. An AE is treatment emergent if they have an onset or worsen in severity after a participant receives the study intervention. TEAEs are considered as leading to discontinuation if the action taken is marked as "drug withdrawn" on the case report form. TEAEs of special interest include injection site reactions, muscle pain and weakness, and kidney stone events.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in ECG mean heart rate.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in RR Interval.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in aggregate PR Interval.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in aggregate QRS Interval.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in aggregate QT Interval.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in aggregate QTcF Interval.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in number of participants with significant findings (physical examination). Change from baseline was calculated using formula: value at current time point - baseline value.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants heights.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants weights.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants BMI.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants oral body temperature.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants respiratory rate.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants heart rate.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants systolic and diastolic blood pressure.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants erythrocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants hemoglobin.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants hematocrit.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants erythrocytes mean corpuscular volume.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants erythrocytes mean corpuscular hemoglobin.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participant's erythrocytes mean corpuscular hemoglobin concentration.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants reticulocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants platelets.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants mean platelet volume.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants lymphocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants monocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants eosinophils.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants basophils.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in participants neutrophils.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in the ratio of lymphocytes/leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in the ratio of monocytes/leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in the ratio of eosinophils/leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in the ratio of basophils/leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in the ratio of neutrophils/leukocytes.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in alanine aminotransferase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in aspartate aminotransferase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in lactate dehydrogenase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in glutamate dehydrogenase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in gamma glutamyl transferase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in alkaline phosphatase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in bilirubin and direct bilirubin.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in protein.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in albumin.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in creatine kinase.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in sodium.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in chloride.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in potassium.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in creatinine.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in blood urea nitrogen.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in blood urea Cystatin C.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported change from baseline to Month 6 in blood urea plasma oxalate.
Time frame: Baseline (Week 0), Month 6
This outcome measure, if estimable, was expected to report Cmax which is defined as maximum observed concentration. However, in this study, a non-compartmental PK analysis was not planned or executed due to the limited PK samples (2 PK concentration - time data points between 0 to 4 hours and 4 to 24 hours following dose administration on Day 1) collected in pediatric participants per protocol, hence this PK parameter was not estimated. To estimate Cmax, at least one data point prior to Tmax and one data point post-Tmax at the designated time points are needed; however, only two flexible post-dose PK concentration data points were available in this study. Although Cmax was not estimated in this study, the PK data collected in this study will be used in a population PK analysis in the future.
Time frame: Day 1: Postdose 0- to 4-hour and 4- to 24-hour, Days 2, 30, and 90: post dose, Day 150: predose and Day 150: postdose: 0- to 4-hour and 4- to 24-hour
This outcome measure, if estimable, was expected to report AUCt which is defined as area under the concentration-time curve calculated from time zero to the last observable concentration at time t. However, in this study, a non-compartmental PK analysis was not planned or executed due to the limited PK samples (2 PK concentration - time data points between 0 to 4 hours and 4 to 24 hours following dose administration on Day 1) collected in pediatric participants per protocol, hence this PK parameter was not estimated. To estimate AUCt, at least one data point prior to Tmax and three data points post-Tmax at the designated time points are needed; however, only two flexible post-dose PK concentration data points were available in this study. Although AUCt was not estimated in this study, the PK data collected in this study shall be used in a population PK analysis in the future.
Time frame: Day 1: Postdose 0- to 4-hour and 4- to 24-hour, Days 2, 30, and 90: post dose, Day 150: predose and Day 150: post-dose: 0- to 4-hour and 4- to 24-hour
This outcome measure, if estimable, was expected to report AUC∞ which is defined as area under the concentration-time curve calculated to the last observable concentration at time t. However, in this study, a non-compartmental PK analysis was not planned or executed due to the limited PK samples (2 PK concentration - time data points between 0 to 4 hours and 4 to 24 hours following dose administration on Day 1) collected in pediatric participants per protocol, hence this PK parameter was not estimated. To estimate AUC∞, at least one data point prior to Tmax and three data points post-Tmax at the designated time points are needed; however, only two flexible post-dose PK concentration data points were available in this study. Although AUC∞ was not estimated in this study, the PK data collected in this study will be used in a population PK analysis in the future.
Time frame: From baseline (week 0) through Month 6
This outcome measure reported percentage of participants from baseline to Month 6 Oxalate-to-creatinine Ratio less than and equal to (<=) ULN or <=1.5*ULN at any time point through Month 6 in pediatric participants (birth to 11 years of age) with genetically confirmed PH1, PH2, or PH3 subgroups.
Time frame: Baseline (Week 0), Month 6
This outcome measure reported Change from Baseline in GFR estimated Cystatin C at Month 6 (only in participants >=12 Months of age at Screening) in PH1, PH2, or PH3 participant subgroups. The eGFR was calculated using multivariate Schwartz equation using formula: eGFR=39.8*[ht/Scr]^0.456 [1.8/cysC]^0.418 [30/BUN]^0.0791.076^male[ht/1.4]^0.179 where ht (height) = meters, Scr (serum creatinine) = milligrams per deciliter (mg/dL), cysC (cystatin C) = mg/L, and BUN (blood urea nitrogen) = mg/dL.
Dicerna Pharmaceuticals, Inc., a Novo Nordisk company
Industry
A Phase 2 Open-Label Multicenter Study to Evaluate the Safety, Pharmacokinetics, and Efficacy of Nedosiran in Pediatric Patients From Birth to 11Years of Age With Primary Hyperoxaluria and Relatively Intact Renal Function
Acronym: PHYOX8
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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