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Evaluation of the Efficacy and Safety of VX-814 in Subjects With the PiZZ Genotype

Phase 2
Terminated
Conditions
Alpha 1-Antitrypsin Deficiency
Interventions
Drug: Placebo
Registration Number
NCT04167345
Lead Sponsor
Vertex Pharmaceuticals Incorporated
Brief Summary

This study will evaluate the efficacy, safety and pharmacokinetics (PK) of VX-814 in PiZZ subjects.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
48
Inclusion Criteria
  • Subjects must have a PiZZ genotype confirmed at screening
  • Plasma AAT levels indicating severe deficiency at screening

Key

Exclusion Criteria
  • History of a medical condition that could negatively impact the ability to complete the study
  • Solid organ, or hematological transplantation or is currently on a transplant list
  • History of use of gene therapy or RNAi therapy at any time previously

Other protocol defined Inclusion/Exclusion criteria may apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Parts A1, A2 and B Combined: PlaceboPlaceboParticipants received placebo matched to VX-814 in the treatment period for 28 days.
Part A1: VX-814 100 milligrams (mg)VX-814Participants received VX-814 100 mg every 12 hours (q12h) in the treatment period for 28 days.
Part A1: VX-814 200 mgVX-814Participants received VX-814 200 mg q12h in the treatment period for 28 days.
Part B: VX-814 600 mgVX-814Participants received VX-814 600 mg q12h in the treatment period for 28 days.
Parts A1 and A2 Combined: VX-814 400 mgVX-814Participants received VX-814 400 mg q12h in the treatment period for 28 days.
Primary Outcome Measures
NameTimeMethod
Change in Plasma Functional Alpha-1 Antitrypsin (AAT) LevelsFrom Baseline at Day 28
Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)Day 1 up to Week 8
Secondary Outcome Measures
NameTimeMethod
Change in Plasma Antigenic AAT LevelsFrom Baseline at Day 28
Observed Pre-dose Plasma Concentration of VX-814Pre-dose at Day 7, Day 14, Day 21, and Day 28

Trial Locations

Locations (28)

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

University of California Davis Medical Center

🇺🇸

Sacramento, California, United States

National Jewish Health

🇺🇸

Denver, Colorado, United States

University of Florida, Shands Hospital

🇺🇸

Gainesville, Florida, United States

University of Miami Miller School of Medicine

🇺🇸

Miami, Florida, United States

Central Florida Pulmonary Group, PA

🇺🇸

Orlando, Florida, United States

The University of Iowa Hospitals and Clinics

🇺🇸

Iowa City, Iowa, United States

University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

University of Minnesota

🇺🇸

Minneapolis, Minnesota, United States

Blessing Corporate Services, Inc., dba Blessing Health System

🇺🇸

Hannibal, Missouri, United States

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University of Alabama at Birmingham
🇺🇸Birmingham, Alabama, United States
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