PRECISION-HD1 is a Phase 1b/2a multicenter, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of single and multiple doses of WVE-120101 in adult patients with early manifest Huntington's disease (HD) who carry a targeted single nucleotide polymorphism (SNP) rs362307 (SNP1).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
61
WVE-120101 is a stereopure antisense oligonucleotide (ASO)
0.9% Sodium Chloride
Westmead Hospital
Sydney, New South Wales, Australia
Royal Brisbane & Women's Hospital
Safety: Number of Patients With Treatment-emergent Adverse Events (TEAEs)
All TEAEs reported or observed during the study, including TEAEs resulting from concurrent illnesses, reactions to concurrent medications, or progression of disease states
Time frame: Day 1 to end of study (up to Day 182 [32 mg cohort]/ Day 210 [all other cohorts])
Safety: Severity of Adverse Events
Number of patients who experienced a severe treatment-emergent adverse event. Severity was evaluated using the National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0
Time frame: Day 1 to end of study (up to Day 182 [32 mg cohort]/ Day 210 [all other cohorts])
Safety: Number of Patients With Serious TEAEs
A serious TEAE is defined as any event that results in death, is immediately life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or is a congenital anomaly/birth defect not present at Prescreening.
Time frame: Day 1 to end of study (up to Day 182 [32 mg cohort]/ Day 210 [all other cohorts])
Safety and Tolerability: Number of Patients Who Withdraw Due to TEAEs
Time frame: Day 1 to end of study (up to Day 182 [32 mg cohort]/ Day 210 [all other cohorts])
Pharmacokinetics (PK): Maximum Observed Concentration (Cmax)
Cmax of WVE-120101 in plasma
Time frame: Patients participating in Period 1 (SAD) had PK samples collected on Day 1 predose through 24-48 hours postdose. Patients participating in Period 2 (MAD) had PK samples collected predose on Day 112 and through 4 hours postdose.
PK: Time of Occurrence of Cmax (Tmax)
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Herston, Queensland, Australia
Royal Melbourne Hospital
Carlton, Victoria, Australia
Monash Health
Clayton, Victoria, Australia
Alfred Health
Melbourne, Victoria, Australia
Calvary Health Care Bethlehem
Parkdale, Victoria, Australia
North Metropolitan Health Service
Perth, Western Australia, Australia
University of Alberta
Edmonton, Alberta, Canada
Centre For Movement Disorders
Toronto, Ontario, Canada
Center Hospitalier de l'Universite de Montreal
Montreal, Quebec, Canada
...and 11 more locations
tmax of WVE-120101 in plasma
Time frame: Patients participating in Period 1 (SAD) had PK samples collected on Day 1 predose through 24-48 hours postdose. Patients participating in Period 2 (MAD) had PK samples collected predose on Day 112 and through 4 hours postdose.
PK: Area Under the Plasma Concentration-time Curve (AUClast)
AUClast from time 0 to the last quantifiable concentration of WVE-120101 in plasma
Time frame: Patients participating in Period 1 (SAD) had PK samples collected on Day 1 predose through 24-48 hours postdose. Patients participating in Period 2 (MAD) had PK samples collected predose on Day 112 and through 4 hours postdose.
PK: Terminal Elimination Half Life
Terminal elimination half life of WVE-120101 in plasma (t1/2)
Time frame: Patients participating in Period 1 (SAD) had PK samples collected on Day 1 predose through 24-48 hours postdose. Patients participating in Period 2 (MAD) had PK samples collected predose on Day 112 and through 4 hours postdose.
Pharmacodynamics
Percentage change from baseline in concentration of mutant huntingtin (mHTT) protein in CSF
Time frame: Day 1 to last observation - up to Day 140 (32 mg cohort) or Day 196 (all other cohorts)
Clinical Effects: Total Functional Capacity (TFC)
Percentage change from baseline to the last measured time point in the Total Functional Capacity score, administered as part of the Unified Huntington's Disease Rating Scale (UHDRS). Total Functional Capacity is scored 13 (normal) to 0 (severe disability).
Time frame: Day 1 to last observation - up to Day 140 (32 mg cohort) or Day 196 (all other cohorts)