A Phase 1 interventional study of DCR-PHXC and Placebo in Primary Hyperoxaluria, sponsored by Dicerna Pharmaceuticals, Inc., a Novo Nordisk company. Completed at 7 sites in 5 countries. Open to participants aged 6 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-09-19.
Sponsored by Dicerna Pharmaceuticals, Inc., a Novo Nordisk company (part of Novo Nordisk A/S) · Phase 1, Interventional, and Treatment
This is a double-blind, placebo-controlled, dose escalation trial of DCR-PHXC in Healthy Volunteers (HVs) and patients with Primary Hyperoxaluria (PH). Once safety has been established in HV, PH patients with a confirmed diagnosis of PH1 and PH2 will be enrolled across multiple dosing cohorts. The study design will allow enrollment of PH patient cohorts at a given dose level once safety has been demonstrated in HV at that dose level. The study will be conducted in two parts: Part A: Single ascending dose (SAD) in HV; Part B: SAD in patients with PH1 and PH2 (lagging Part A by 1 dose level cohort).
42 studies on the registry are indexed under Hyperoxaluria, Primary; 11 are open to participants now.
This study's enrollment of 43 is above the median of 24 across 26 interventional studies indexed under Hyperoxaluria, Primary.
Browse Hyperoxaluria, Primary studies →Dicerna Pharmaceuticals, Inc., a Novo Nordisk company is the lead sponsor of 18 studies on the registry; 2 are open to participants now.
Of its 8 completed or terminated interventional studies of FDA-regulated products, 4 (50%) have results posted.
First submitted before Dicerna Pharmaceuticals, Inc. became part of Novo Nordisk A/S.
Counted across the registry records on this site, refreshed daily.
Group A (HVs) Major Inclusion Criteria:
Group A (HVs) Major Exclusion Criteria:
Group B (PH1 and PH2 patients) Major Inclusion Criteria:
Group B (PH1 and PH2 patients) Major Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HVs, single ascending doses of DCR-PHXC.
Drug: DCR-PHXC
HVs, normal saline 0.9% injection to match active doses.
Drug: Placebo
PH1 and PH2 patients, open label, single ascending doses of DCR-PHXC.
Drug: DCR-PHXC
DCR-PHXC is a novel, potent, and long-acting small interference ribonucleic acid (siRNA) molecule conjugated to N-acteylgalactosamine (GalNAc) that is designed to decrease liver oxalate production. DCR-PHXC is delivered via subcutaneous (SC) injection.
Single SC administration of placebo, which will be a sterile, preservative-free normal saline 0.9% solution for SC injection, which is of similar osmolality to the DCR-PHXC formulation.
Number of patients with Treatment-Related Adverse Events (TEAEs)
Time frame: Part A (SAD in HVs) screening through Day 29; Part B (SAD in PH patients) screening through Day 57
Plan to share: No
No publications or documents are linked to this record.
Ran from Dec 2017 to primary completion in Nov 2019, 23 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Nedosiran
Dicerna Pharmaceuticals, Inc., a Novo Nordisk company →