E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Primary Hyperoxaluria Type 1 (PH1) |
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E.1.1.1 | Medical condition in easily understood language |
A rare genetic metabolic disorder leading to kidney stones and / or excess calcium deposition in the kidneys, eventually resulting in kidney failure. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10020703 |
E.1.2 | Term | Hyperoxaluria |
E.1.2 | System Organ Class | 10038359 - Renal and urinary disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Cohort A • Evaluate the effect of lumasiran on plasma oxalate in patients who are not on dialysis therapy Cohort B • Evaluate the effect of lumasiran on plasma oxalate levels in patients who are on dialysis therapy |
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E.2.2 | Secondary objectives of the trial |
• Evaluate the effect of lumasiran on change in plasma oxalate area under the curve (AUC) between dialysis sessions • Evaluate the long-term effects of lumasiran on change in plasma oxalate • Evaluate the effect of lumasiran on change in urinary oxalate excretion • Evaluate quality of life in patients with PH1 • Characterize the PK of lumasiran • Evaluate the effect of lumasiran on nephrocalcinosis • Evaluate the effect of lumasiran on dialysis requirements • Evaluate the effect of lumasiran on the occurrence of renal stones • Evaluate the effect of lumasiran on renal function • Evaluate the effect of lumasiran on change in measures of systemic oxalosis
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Cohorts A and B 1. Have reached at least 37 weeks estimated gestational age (full-term infant) at consent (or assent). 2. Documentation or confirmation of PH1 as determined by genetic analysis prior to initial dosing. 3. Patients with eGFR ≤45 mL/min/1.73 m2 as calculated by the MDRD formula if ≥18 years or Schwartz Bedside Formula if ≥12 months to <18 years, or patients <12 months of age with serum creatinine that is considered elevated for age at consent. 4. The mean of the three most recent screening plasma oxalate samples collected prior to Day 1 is ≥20 μmol/L. In Cohort B, these 3 collections may include the first pre-dialysis sample from each plasma oxalate profile. 5. If taking therapeutic vitamin B6 (pyridoxine), must have been on stable regimen for at least 90 days before consent, and is able and willing to remain on this stable regimen until at least the Month 6 visit. Dose adjustments for interval weight gain are acceptable. 6. Patient is willing and able to comply with the study requirements and to provide written informed consent. In the case of patients under the age of legal consent, the legal guardian(s) must provide informed consent and the patient should provide assent per local and national requirements.
Cohort B Only 1. On a stable hemodialysis regimen for at least 4 weeks prior to Screening plasma oxalate assessment; able and willing to maintain this regimen through Month 6 visit, with changes to dialysis regimen permitted only when medically indicated.
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E.4 | Principal exclusion criteria |
1. Has any of the following laboratory parameter assessments at Screening: a. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2× ULN for age b. Total bilirubin >1.5×ULN. Patients with elevated total bilirubin that is secondary to documented Gilbert’s syndrome are eligible if the total bilirubin is <2× ULN c. International normalized ratio (INR) >1.5 for patients not on anticoagulants. Patients on oral anticoagulants (eg, warfarin) with an INR <3.5 will be allowed. d. Hemoglobin <8.0 dL 2. Has known active human immunodeficiency virus (HIV) infection; or evidence of current or chronic hepatitis C virus (HCV) or hepatitis B (HBV) infection. 3. Received an investigational agent within the last 30 days or 5 half-lives, whichever is longer, prior to the first dose of study drug, or are in follow-up of another clinical study during Screening. Consultation with the Medical Monitor is required if treated with unapproved products prior to consent regardless of the time interval prior to the first dose of study drug. 4. Known history of allergic reaction to an oligonucleotide or GalNAc. 5. Diagnosis of conditions other than PH1 contributing to renal insufficiency such as glomerulonephritis, nephrotic syndrome, or lupus nephritis. 6. Any condition or comorbidity, which in the opinion of the Investigator, would make the patient unsuitable for dosing or would interfere with study compliance, data interpretation, patient safety, and/or patient participation in the study. This includes significant active and poorly controlled (unstable) cardiovascular, neurologic, gastrointestinal, endocrine, renal or psychiatric disorders unrelated to PH1 identified by key laboratory abnormalities or medical history. 7. Unwilling or unable to limit alcohol consumption throughout the course of the study. Alcohol intake of >2 units/day is excluded during the study (unit: 1 glass of wine [approximately 125 mL] = 1 measure of spirits [approximately 1 fluid ounce] = ½ pint of beer [approximately 284 mL]. 8. History of alcohol abuse, within the last 12 months before screening, in the opinion of the investigator. 9. Patients with a previous liver transplant or for whom a liver transplant is anticipated in the next 6 months. 10. Patients with a previous kidney transplant who are currently receiving immunosuppression to prevent transplant rejection. 11. Patients maintained on a peritoneal dialysis regimen. 12. Patients who in the opinion of the Investigator plan to start dialysis replacement therapy in the next 6 months. 13. Any comorbidity or condition that, in the opinion of the Investigator, is anticipated to prevent participation in at least 12 months of the study 14. Is not willing to comply with the contraceptive requirements during the study period, as described in study protocol. 15. Female patient is pregnant, planning a pregnancy, or breast feeding. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Cohort A • Percent change in plasma oxalate from Baseline to Month 6
Cohort B • Percent change in pre-dialysis plasma oxalate from Baseline to Month 6
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Primary Analysis Period (Baseline to 6 months) • Percent change in plasma oxalate AUC between dialysis sessions • Absolute change in plasma oxalate • Change in the following parameters: *Urinary oxalate *QoL assessed by the PedsQL Total Score for patients ≥2 to <18 years of age at consent, and as assessed by KDQOL Burden of Kidney Disease and Effect of Kidney Disease on Daily Life subscales, and SF-12 Physical Component Summary and Mental Component Summary, in patients ≥18 years at consent • Plasma PK parameters of lumasiran
Long-term Extension Period (6 months to end of study) • Percent change in plasma oxalate AUC between dialysis sessions • Percent and absolute change in plasma oxalate • Change in the following parameters: *Nephrocalcinosis as assessed by renal ultrasound *Frequency and mode of dialysis *Frequency of renal stone events *Urinary oxalate *Renal function as assessed by eGFR *Measures of systemic oxalosis in the following systems: -Cardiac -Dermatologic -Skeletal -Ocular *QoL(Quality of life) assessed by the PedsQL Total Score for patients ≥2 to <18 years of age at consent, and as assessed by KDQOL Burden of Kidney Disease and Effect of Kidney Disease on Daily Life subscales, and SF-12 Physical Component Summary and Mental Component Summary, in patients ≥18 years at consent |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Primary Analysis Period: 6 months Long-term Extension Period: 6 months to 5 years |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 6 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Belgium |
Egypt |
France |
Germany |
India |
Israel |
Lebanon |
Netherlands |
Switzerland |
Turkey |
United Arab Emirates |
United States |
Jordan |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | 4 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 4 |