Study to Investigate Safety, Tolerability, PK and PD Response of SLN360 in Subjects With Elevated Lipoprotein(a)

Sponsor
Silence Therapeutics plc (Industry)
Overall Status
Recruiting
CT.gov ID
NCT04606602
Collaborator
Medpace, Inc. (Industry)
88
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11
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Study Details

Study Description

Brief Summary

This study will investigate the safety and tolerability of SLN360 in patients with elevated Lp(a).

Condition or Disease Intervention/Treatment Phase
Phase 1

Detailed Description

This first-in-human (FIH) study will investigate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of SLN360 after single ascending s.c. doses and multiple doses in healthy male and female subjects.

Up to 9 cohorts of 88 patients with elevated Lp(a) will be enrolled. Each patient will receive single or multiple doses of SLN360 or placebo given by subcutaneous (s.c) injection.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
88 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Prevention
Official Title:
A Randomised, Double-blind, Placebo Controlled, First-in-human Study to Investigate the Safety, Tolerability, Pharmacokinetic and Pharmacodynamic Response of SLN360 in Subjects With Elevated Lipoprotein(a)
Actual Study Start Date :
Nov 18, 2020
Anticipated Primary Completion Date :
Nov 1, 2022
Anticipated Study Completion Date :
Nov 1, 2022

Arms and Interventions

Arm Intervention/Treatment
Experimental: 30 mg

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Placebo Comparator: Placebo

Drug: Placebo
Sodium chloride for subcutaneous (s.c.) injection

Experimental: 100 mg

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 300 mg

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 600 mg

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 900 mg

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 100 mg multi dose

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 200 mg multi dose

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 300 mg multi dose

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Experimental: 600 mg multi dose

Drug: SLN360
SLN360 for subcutaneous (s.c.) injection

Placebo Comparator: Placebo multi dose

Drug: Placebo
Sodium chloride for subcutaneous (s.c.) injection

Outcome Measures

Primary Outcome Measures

  1. Incidence of treatment-emergent adverse events [Day 150]

    safety and tolerability will be reported separately following single-dose administration.

  2. Incidence of treatment-emergent adverse events [Day 201]

    safety and tolerability will be reported separately following multiple-dose administration.

Secondary Outcome Measures

  1. Pharmacokinetic: peak plasma concentration (Cmax) [Day 150 and Day 201]

    safety and tolerability will be reported separately following single-dose and multiple-dose administration.

  2. Pharmacokinetic: area under the plasma concentration (AUC) [Day 150 and Day 201]

    safety and tolerability will be reported separately following single-dose and multiple-dose administration.

  3. Pharmacokinetic: apparent total clearance from plasma after s.c injection (CL/F) [Day 150 and Day 201]

    safety and tolerability will be reported separately following single-dose and multiple-dose administration.

  4. Pharmacodynamic: Change in Lp(a) [Day 150 and Day 201]

    safety and tolerability will be reported separately following single-dose and multiple-dose administration.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion criteria:
  • Elevated plasma Lp(a) ≥ 150nmol/L.

  • All subjects must agree to adhere to appropriate contraception requirements.

  • Subjects must provide written informed consent and be able to comply with all study requirements.

  • Body mass index of ≥ 18 kg/m2 and ≤ 45 kg/m2.

  • For the MD part: confirmed history of stable atherosclerortic cardiovascular disease.

Exclusion criteria:
  • Single Ascending Dose only: any history of clinically overt cardiovascular disease, defined as acute coronary syndromes, myocardial infarction, stable angina, coronary or other revascularization, ischemic stroke or transient ischemic attack and atherosclerotic peripheral arterial disease.

  • Multiple Dose only: recent history of acute cardiovascular disease events within 6 months of screening (including, but not limited to, acute myocardial infarction, unstable angina, acute stroke and acute limb ischemia).

  • Moderate or severe hepatic cirrhosis with Child-Pugh grade B or C, or other current or previous liver disease.

  • Active serious mental illness or psychiatric disorder, including but not limited to schizophrenia, bipolar disorder, or severe depression requiring current pharmacological intervention.

  • Any conditions which, in the opinion of the Investigator, would make the subject unsuitable for enrolment in the study or could interfere with the subject's participation in, or completion of the study.

  • Subjects with previous or current use of medication or therapies significantly affecting Lp(a) level or hormone replacement therapy, unless on a stable dose for ≥ 8 weeks prior to screening

  • History or clinical evidence of alcohol or illegal drug misuse within the 6 months before screening.

  • History of multiple drug allergies or history of allergic reaction to an oligonucleotide or GalNAc, or intolerance to s.c. injections.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Jacksonville Center for Clinical Research Ltd. Jacksonville Florida United States 32216
2 Metabolic and Atherosclerosis Research Center Cincinnati Ohio United States 45227
3 Cleveland Clinic Cleveland Ohio United States 44195
4 Linear Clinical Research Perth Western Australia Australia
5 Monash Medical Centre Clayton Australia
6 Amsterdam Medical Centre Amsterdam Netherlands
7 Hammersmith Medicines Research London United Kingdom

Sponsors and Collaborators

  • Silence Therapeutics plc
  • Medpace, Inc.

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Silence Therapeutics plc
ClinicalTrials.gov Identifier:
NCT04606602
Other Study ID Numbers:
  • SLN360-001
First Posted:
Oct 28, 2020
Last Update Posted:
Mar 21, 2022
Last Verified:
Jun 1, 2021
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Silence Therapeutics plc
Additional relevant MeSH terms:

Study Results

No Results Posted as of Mar 21, 2022