Study to Evaluate Efficacy and Safety of Inclisiran in Children With Heterozygous Familial Hypercholesterolemia (ORION-20)

Novartis

Status and phase: Enrolling; Phase 3

Conditions: Familial Hypercholesterolemia - Heterozygous

Treatments: Drug: Placebo; Drug: Inclisiran

Study type: Interventional

Funder types: Industry

Identifiers

NCT06597019

CKJX839C12303

2024-514594-21 (EudraCT Number)

Details and patient eligibility

About

This is a pivotal phase III study designed to evaluate safety, tolerability, and efficacy of inclisiran in children (aged 6 to <12 years) with heterozygous familial hypercholesterolemia (HeFH) and elevated low density lipoprotein cholesterol (LDLC).

Full description

This is a two-part (1 year double-blind inclisiran versus placebo / 1 year open-label inclisiran) multicenter study designed to evaluate safety, tolerability, and efficacy of inclisiran in children (aged 6 to <12 years) with heterozygous familial hypercholesterolemia (HeFH) and elevated low density lipoprotein cholesterol (LDL-C) on stable standard of care background lipid-lowering therapy.

Enrollment: 51 estimated patients

Sex: All

Ages: 6 to 11 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male or female participants, 6 to <12 years of age at screening
• HeFH diagnosed either by genetic testing or on phenotypic criteria
• Fasting LDL-C >130 mg/dL (3.4 mmol/L) at screening
• For participants 8 to <12 years, on an optimal dose of statin (investigator's discretion) unless statin intolerant, with or without other lipid-lowering therapy (e.g. ezetimibe). For participants <8 years, the use of background lipid-lowering treatment is based on investigator's discretion.
• Participants on lipid-lowering therapies (such as statin and/or e.g. ezetimibe) must be on a stable dose for ≥30 days before screening with no planned medication or dose changes during study participation.

Exclusion criteria

• Previous treatment (within 90 days of screening) with monoclonal antibodies directed towards PCSK9
• Secondary hypercholesterolemia, e.g. hypothyroidism or nephrotic syndrome
• Homozygous familial hypercholesterolemia (HoFH)
• Body weight <16 kg at the screening and/or randomization (Day 1) visit
• Active liver disease defined as any known current infectious, neoplastic, or metabolic pathology of the liver or unexplained alanine aminotransferase (ALT), aspartate aminotransferase (AST) elevation >3x ULN, or total bilirubin elevation >2x ULN (except patients with Gilbert's syndrome)
• Pregnant or nursing females
• Recent and/or planned use of other investigational medicinal products or devices

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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51 participants in 2 patient groups, including a placebo group

Inclisiran

Experimental group

Description:

Year 1 - inclisiran sodium subcutaneous injection (given at Days 1, 90, and 270) Day 360 only - placebo subcutaneous injection Year 2 - inclisiran sodium subcutaneous injection (given at Days 450 and 630)

Treatment:

Drug: Inclisiran

Placebo

Placebo Comparator group

Description:

Year 1 - placebo subcutaneous injection (given at Days 1, 90 and 270) Year 2 - inclisiran sodium subcutaneous injection (given at Days 360, 450, and 630)

Treatment:

Drug: Placebo