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TerminatedNCT02795325Updated Jul 11, 2024

A Study of DCR-PH1 in Patients With Primary Hyperoxaluria Type 1 (PH1)

A Phase 1 interventional study of DCR-PH1 and Placebo in Primary Hyperoxaluria Type 1, sponsored by Dicerna Pharmaceuticals, Inc., a Novo Nordisk company. Terminated at 2 sites in 2 countries. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2024-07-11.

Sponsored by Dicerna Pharmaceuticals, Inc., a Novo Nordisk company (part of Novo Nordisk A/S) · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
41
Allocation
Randomized
Ages
12 Years and older
Sex
All
01

Study summary

A phase 1 study of DCR-PH1 in patients with primary hyperoxaluria type 1 (PH1) to determine the safety, tolerability, pharmacokinetic (PK) and pharmacodynamics (PD) effects of DCR-PH1 administered via-intravenous infusion (IV)

02

Conditions studied

  • Primary Hyperoxaluria Type 1

Keywords

  • Primary Hyperoxaluria Type 1
  • PH1
  • Calcium Oxalate Stones
  • Kidney Stones
  • Liver Enzyme Deficiency
  • Genetic Diseases
  • Inborn Kidney Diseases
  • Metabolic Diseases
  • Inborn Errors
  • Urological Diseases
  • Carbohydrate Metabolism
  • Hyperoxaluria
  • AGT
  • RNAi
  • siRNA
  • DCR-PH1
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In context

Primary hyperoxaluria type 1

22 studies on the registry are indexed under Primary hyperoxaluria type 1; 8 are open to participants now.

This study's enrollment of 41 is above the median of 28 across 16 interventional studies indexed under Primary hyperoxaluria type 1.

Browse Primary hyperoxaluria type 1 studies →

Lead sponsor

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.

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Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male or female, at least 12 years of age
  • Diagnosis of PH1, confirmed by genotyping
  • 24-hour urine oxalate excretion as defined in the protocol
  • ≥ 40 mL/min normalized to 1.73 m2 BSA
  • Written for adults (≥18 years old, or per local regulatory requirement); written informed assent for adolescents (12 to \<18 years old, or per local regulatory requirement)

Exclusion criteria

Exclusion Criteria:

  • Prior renal and/or hepatic transplantation
  • Participation in any clinical study involving administration of any drug within the 30 days before enrollment
  • Pregnancy or lactation at the time of screening or enrollment
  • Women of must have a negative pregnancy test, cannot be breastfeeding and must be willing to use
  • Patients with a known history of (HIV) or active infection with virus or virus
  • Moderate to severe liver impairment
  • Liver function test abnormalities: (ALT) and/or aspartate transaminases (AST) > 2 times (ULN)
  • History of severe reaction to a liposomal product or a known to lipid products.
  • Unable to collect required study samples or follow study procedures
  • No health concerns
Terms in these criteria, in plain language(12)

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.

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.

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.

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
41 participants (actual)

Study arms

  • Experimental
    PH Patients

    Drug: DCR-PH1

  • Experimental
    Healthy Volunteers

    Drug: DCR-PH1 · Other: Placebo

Interventions

  • DrugDCR-PH1

    IV infusion of DCR-PH1

  • OtherPlacebo
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What researchers measure

Primary outcomes

  1. The safety of DCR-PH1 evaluated by the proportion of subjects that experience adverse events (AEs)

    Time frame: Through Day 29

Secondary outcomes

  1. Profile of pharmacokinetics (PK) of DCR-PH1 - Cmax

    Time frame: Through Day 29

  2. Profile of pharmacokinetics (PK) of DCR-PH1 - tmax

    Time frame: Through Day 29

  3. Profile of pharmacokinetics (PK) of DCR-PH1 - AUC

    Time frame: Through Day 29

  4. Profile of pharmacokinetics (PK) of DCR-PH1 - t½

    Time frame: Through Day 29

  5. The effect of DCR-PH1 on plasma glycolate levels

    Time frame: Through Day 29

  6. The effect of DCR-PH1 on urine glycolate levels

    Time frame: Through Day 29

  7. The effect of DCR-PH1 on plasma oxalate levels

    Time frame: Through Day 29

  8. The effect of DCR-PH1 on urine oxalate levels

    Time frame: Through Day 29

07

Study locations

2 sites
  • Bonn, Germany
  • Amsterdam, Netherlands
08

References and documents

Publications

  • Martin-Higueras C, Luis-Lima S, Salido E. Glycolate Oxidase Is a Safe and Efficient Target for Substrate Reduction Therapy in a Mouse Model of Primary Hyperoxaluria Type I. Mol Ther. 2016 Apr;24(4):719-25. doi: 10.1038/mt.2015.224. Epub 2015 Dec 22. PubMed 26689264 ↗
  • Milliner DS. siRNA Therapeutics for Primary Hyperoxaluria: A Beginning. Mol Ther. 2016 Apr;24(4):666-7. doi: 10.1038/mt.2016.50. No abstract available. PubMed 27081720 ↗
  • Dutta C, Avitahl-Curtis N, Pursell N, Larsson Cohen M, Holmes B, Diwanji R, Zhou W, Apponi L, Koser M, Ying B, Chen D, Shui X, Saxena U, Cyr WA, Shah A, Nazef N, Wang W, Abrams M, Dudek H, Salido E, Brown BD, Lai C. Inhibition of Glycolate Oxidase With Dicer-substrate siRNA Reduces Calcium Oxalate Deposition in a Mouse Model of Primary Hyperoxaluria Type 1. Mol Ther. 2016 Apr;24(4):770-8. doi: 10.1038/mt.2016.4. Epub 2016 Jan 13. PubMed 26758691 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 11, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02795325
Responsible party
Sponsor
First posted
Jun 10, 2016
Start date
May 13, 2016
Primary completion
Oct 14, 2016
Completion
Oct 14, 2016
Last update
Jul 11, 2024
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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