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VX-445/TEZ/IVA

Phase 3

Cystic Fibrosis | Small molecule | Respiratory |Vertex Pharmaceuticals Incorporated|Last Updated: May 19, 2020

Success Probability

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment518

FDA Designations

No designations recorded

Clinical trial landscape

VX-445/TEZ/IVA · 2 trials · 1 indication

Phase 3 2
NCT03525548A Study of VX-445 Combination Therapy in CF Subjects Homozygous for F508del (F/F)Cystic Fibrosis
COMPLETED113 Analytics
NCT03525444A Phase 3 Study of VX-445 Combination Therapy in Subjects With Cystic Fibrosis Heterozygous for the F508del Mutation and a Minimal Function Mutation (F/MF)Cystic Fibrosis
COMPLETED405 Analytics
PHASE3COMPLETED
A Study of VX-445 Combination Therapy in CF Subjects Homozygous for F508del (F/F)
Cystic FibrosisUnlock trial analytics
PHASE3COMPLETED
A Phase 3 Study of VX-445 Combination Therapy in Subjects With Cystic Fibrosis Heterozygous for the F508del Mutation and a Minimal Function Mutation (F/MF)
Cystic FibrosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)
From Baseline at Week 4

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.

Secondary Endpoints

Absolute Change in Sweat Chloride (SwCl)
From Baseline at Week 4
Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score
From Baseline at Week 4
Safety and Tolerability as Assessed by Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
From first dose of study drug in TC treatment period up to 28 days after last dose of study drug or to the completion of study participation date, whichever occurs first (up to Week 8)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TEZ/IVAACTIVE_COMPARATORFollowing a run-in period of 4 weeks with Tezacaftor (TEZ)/Ivacaftor (IVA), participants received TEZ 100 milligram (mg)/IVA 150 mg as fixed-dose combination (FDC) tablet in the morning and IVA 150 mg as mono tablet in the evening for 4 weeks in the triple combination (TC) treatment period.
VX-445/TEZ/IVA TCEXPERIMENTALFollowing a run-in period of 4 weeks with TEZ/IVA, participants received VX-445 200 mg/TEZ 100 mg/IVA 150 mg as FDC tablets in the morning and IVA 150 mg as mono tablet in the evening for 4 weeks in the TC treatment period.
PlaceboPLACEBO_COMPARATORParticipants who received placebo matched to VX-445/TEZ/IVA for 24 weeks in the TC treatment period.

Interventions

NameTypeDescription
VX-445/TEZ/IVADRUGParticipants received VX-445/TEZ/IVA orally once daily in the morning.
TEZ/IVADRUGParticipants received TEZ/IVA orally once daily in the morning.
IVADRUGParticipants received IVA orally once daily in the evening.
PlaceboDRUGParticipants received placebo matched to VX-445/TEZ/IVA orally once daily in the morning.
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Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites44

Key Inclusion Criteria: * Homozygous for the F508del mutation (F/F) * Forced expiratory volume in 1 second (FEV1) value ≥40% and ≤90% of predicted mean for age, sex, and height Key Exclusion Criteria: * Clinically significant cirrhosis with or without portal hypertension * Lung infection with org...

Countries:United StatesBelgiumNetherlandsUnited KingdomAustraliaAustriaCanadaCzechiaFranceGermanyGreeceItalySweden
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Frequently asked questions about VX-445/TEZ/IVA

What is VX-445/TEZ/IVA used for in cystic fibrosis?

VX-445/TEZ/IVA is an investigational small molecule combination therapy being developed for cystic fibrosis. It is being studied in patients who are heterozygous for the F508del mutation and a minimal function mutation, as well as in patients homozygous for F508del. The drug is currently in Phase 3 clinical development.

What does VX-445/TEZ/IVA target?

VX-445/TEZ/IVA is a combination therapy that includes VX-445, tezacaftor, and ivacaftor. It targets the cystic fibrosis transmembrane conductance regulator (CFTR) protein, which is defective in people with cystic fibrosis. The combination aims to correct and potentiate the CFTR protein function.

Who makes VX-445/TEZ/IVA?

VX-445/TEZ/IVA is being developed by Vertex Pharmaceuticals Incorporated, a biopharmaceutical company. Vertex is focused on developing therapies for serious diseases, including cystic fibrosis. The company is publicly traded under the ticker symbol VRTX.

What phase is VX-445/TEZ/IVA in?

VX-445/TEZ/IVA is in Phase 3 clinical development. It has completed two Phase 3 trials, with a total enrollment of 518 participants. The drug is not yet approved and remains investigational, as it is still undergoing clinical evaluation for safety and efficacy.

What clinical trials is VX-445/TEZ/IVA in?

VX-445/TEZ/IVA has been studied in two completed Phase 3 trials. NCT03525444 enrolled 405 patients with cystic fibrosis heterozygous for F508del and a minimal function mutation. NCT03525548 enrolled 113 patients homozygous for F508del. Both trials were randomized, double-blind, and active-controlled.

Is VX-445/TEZ/IVA the same as elexacaftor/tezacaftor/ivacaftor?

VX-445/TEZ/IVA is a combination of VX-445, tezacaftor, and ivacaftor. VX-445 is also known as elexacaftor, so the drug is commonly referred to as elexacaftor/tezacaftor/ivacaftor. This triple combination is being developed for cystic fibrosis.