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VX-809

Phase 3

Cystic Fibrosis | Small molecule | Respiratory |Vertex Pharmaceuticals Incorporated|Trials Updated: Dec 6, 2017

VX-809 development status

Highest phase Phase 3
Registered trials 10 across 1 sponsor since Mar 2009

VX-809 target and mechanism

Molecular targetCFTR
Target classProtein
ModalitySmall molecule

Also known as lumacaftor, LUM

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials13
Total Enrollment3,385

FDA Designations

No designations recorded

VX-809 clinical trials

VX-809 · 13 trials · 4 indications

Phase 3 6Phase 2 2Phase 1 5
NCT02514473A Study to Evaluate the Efficacy and Safety of Lumacaftor in Combination With Ivacaftor in Subjects With CF, Homozygous for the F508del-CFTR MutationCystic Fibrosis
COMPLETED206 Analytics
NCT02390219Study to Evaluate Lumacaftor and Ivacaftor Combination Therapy in Subjects 12 Years and Older With Advanced Lung DiseaseCystic Fibrosis
COMPLETED46 Analytics
NCT01931839A Phase 3 Rollover Study of Lumacaftor in Combination With Ivacaftor in Subjects 12 Years and Older With Cystic FibrosisCystic Fibrosis, Homozygous or Heterozygous for the F508del-CFTR Mutation
COMPLETED1,164 Analytics
NCT01897233Study of Lumacaftor in Combination With Ivacaftor in Subjects 6 Through 11 Years of Age With Cystic Fibrosis, Homozygous for the F508del-CFTR MutationCystic Fibrosis
COMPLETED62 Analytics
NCT01807923A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR MutationCystic Fibrosis, Homozygous for the F508del CFTR Mutation
COMPLETED559 Analytics
NCT01807949A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR MutationCystic Fibrosis, Homozygous for the F508del CFTR Mutation
COMPLETED563 Analytics
PHASE3COMPLETED
A Study to Evaluate the Efficacy and Safety of Lumacaftor in Combination With Ivacaftor in Subjects With CF, Homozygous for the F508del-CFTR Mutation
Cystic FibrosisUnlock trial analytics
PHASE3COMPLETED
Study to Evaluate Lumacaftor and Ivacaftor Combination Therapy in Subjects 12 Years and Older With Advanced Lung Disease
Cystic FibrosisUnlock trial analytics
PHASE3COMPLETED
A Phase 3 Rollover Study of Lumacaftor in Combination With Ivacaftor in Subjects 12 Years and Older With Cystic Fibrosis
Cystic Fibrosis, Homozygous or Heterozygous for the F508del-CFTR MutationUnlock trial analytics
PHASE3COMPLETED
Study of Lumacaftor in Combination With Ivacaftor in Subjects 6 Through 11 Years of Age With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation
Cystic FibrosisUnlock trial analytics
PHASE3COMPLETED
A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR Mutation
Cystic Fibrosis, Homozygous for the F508del CFTR MutationUnlock trial analytics
PHASE3COMPLETED
A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR Mutation
Cystic Fibrosis, Homozygous for the F508del CFTR MutationUnlock trial analytics

Study Endpoints

Primary Endpoints

Absolute Change From Baseline in Lung Clearance Index 2.5 (LCI2.5) Through Week 24
Baseline, Through Week 24

Lung clearance index (LCI) is a measure of ventilation inhomogeneity that is derived from a multiple breath washout test using Nitrogen (N2). LCI2.5 represents the number of lung turnovers required to reduce the end tidal inert gas concentration to 1/40th of its starting value.

Number of Participants With Treatment Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs)
Day 1 up to Week 28

AE: any untoward medical occurrence in a participant during the study; event does not necessarily have a causal relationship with treatment. This includes any newly occurring event/previous condition that has increased in severity/frequency after informed consent form is signed. AE includes serious as well as non-serious AEs. SAE (subset of AE): medical event, which falls into any of the following categories, regardless of its relationship to study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. TEAEs: AEs that started/ worsened on/after the start of study drug through the Safety Follow up Visit (4 weeks after the last dose of study drug). Results were reported as planned, as a combined single LUM/IVA arm irrespective of permitted dose modification.

Part A Treatment Cohort: Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Day 1 up to Week 105 (Study 105)

AE: as any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after informed consent form is signed. AE includes serious as well as non-serious AEs. SAE (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, In-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Any AE that increased in severity or newly developed at or after initial dosing of study drug was considered treatment-emergent.

Part B Treatment Cohort: Number of Participants With Treatment-Emergent AEs and SAEs
Day 1 up to Week 105 (Study 105)

AE: as any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after informed consent form is signed. AE includes serious as well as non-serious AEs. SAE (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, In-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Any AE that increased in severity or newly developed at or after initial dosing of study drug was considered treatment-emergent.

Part A: Observed Plasma Concentration of Lumacaftor (LUM) and Ivacaftor (IVA) at Hour 4 Post-dose (C4h) on Day 1
4 hours post-morning dose on Day 1
Part A: Observed Plasma Concentration of Lumacaftor (LUM) and Ivacaftor (IVA) at Hour 4 Post-dose (C4h) on Day 14
4 hours post-morning dose on Day 14
Part A: Area Under the Plasma Concentration-Time Curve From Time 0 to End of Dosing Interval (AUCtau) of Lumacaftor (LUM) and Ivacaftor (IVA)
Day 14 (pre-morning dose, 4, 6, 12, and 24 hours post-morning dose for LUM; pre-morning dose, 2, 4, 6, 12 hours post-morning dose for IVA)

The AUCtau is the area under the concentration versus time curve from time 0 to time tau, where tau is the time at the end of dosing interval.

Part B: Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Day 1 up to Week 26

AE: any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after the informed consent form is signed. AE includes serious as well as non-serious AEs. SAE (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, inpatient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. AEs with start date or increased severity on or after the first study drug dose to Week 26 were considered treatment-emergent.

Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1) at Week 24
Baseline, Week 16 and 24

Absolute change from baseline at Week 24 was assessed as the average treatment effect at Week 16 and at Week 24. FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Hankinson and Wang standards were used to calculate percent predicted FEV1 (for age, gender, race, and height). The Hankinson standard was used for male participants 18 years and older and female participants 16 years and older. The Wang standard was used for male participants aged 12 to 17 years and for female participants aged 12 to 15 years.

Cohort 1: Safety and Tolerability Based on Adverse Events (AEs)
Cohort 1: Day 1 up to 28 days after last dose (Last dose = Day 21)

AE: any untoward medical occurrence in a participant during study; irrespective of relationship with treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after informed consent. AE includes serious AEs (SAEs) as well as Non-SAEs. SAE (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Number of participants with AEs and SAEs are reported. AE that started at/after initial dosing of study drug, or increased in severity after initial dosing of study drug is considered treatment-emergent. Results are reported separately for monotherapy period (Period 1: Day 1 to Day 14) and combination therapy period (Period 2: Day 15 to Day 21).

Cohort 2 and 3: Safety and Tolerability Based on Adverse Events (AEs)
Cohort 2 and 3: Day 1 up to 28 days after last dose (Last dose = Day 56)

Detailed description is provided in Outcome Measure 1. Results are reported separately for monotherapy period (Period 1: Day 1 to Day 28) and combination therapy period (Period 2: Day 29 to Day 56).

Cohort 4: Safety and Tolerability Assessed by Number of Participants With AEs and SAEs
Cohort 4: Day 1 up to 28 days after last dose (Last dose = Day 56)

AEs and SAEs are defined in Outcome Measure 1.

Cohort 1: Absolute Change From Day 14 in Sweat Chloride at Day 21
Cohort 1: Day 14, Day 21
Cohort 2 And 3: Absolute Change From Day 28 in Sweat Chloride at Day 56
Cohort 2 and 3: Day 28, Day 56
Cohort 4: Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) at Day 56
Cohort 4: Baseline, Day 56

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. ppFEV1 (predicted for age, gender, and height) was calculated using the Hankinson method.

Safety and Tolerability Based on Adverse Events (AEs)
Up to 14 days after last dose (last dose = Day 28)

AE: any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after the informed consent form is signed. AE includes serious as well as Non-serious AEs. Serious adverse event (SAE) (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Number of participants with AEs and SAEs are reported. An AE that started at or after initial dosing of study drug, or increased in severity after initial dosing of study drug visit is considered treatment-emergent.

Pharmacokinetic parameters of lumacaftor and ivacaftor, including Cmax, AUC0-tlast, and AUC0-∞
up to 5 days
(Part A) Safety and tolerability of lumacaftor as measured by standard 12-lead ECGs, adverse events (AEs), vital signs, spirometry, and clinically significant laboratory assessments
7 days
(Part B) Time matched, baseline-adjusted change in QTcF intervals obtained from a continuous ECG recording over a 24 hour interval after administration of a therapeutic and supratherapeutic dose of lumacaftor in combination with ivacaftor
7 days
Cohorts 1-3: PK parameters including Cmax, and AUC from time of dosing to time tau of lumacaftor and ivacaftor in the absence and presence of ciprofloxacin, itraconazole, and rifampin
up to 24 days
Cohort 4: Change in lung function from before treatment with lumacaftor/ivacaftor to after treatment with lumacaftor/ivacaftor.
up to 21 days
PK parameters (including concentration, exposure and half-life) of VX-809 and its metabolite in plasma in the presence and absence of VX 770
70 days

Blood samples drawn during the study will be analyzed to measure the PK parameters, such as concentration, exposure and half-life of VX-809 and its metabolite.

PK parameters (including concentration, exposure and half-life) of VX-770 and its metabolites in plasma in the presence and absence of VX 809
70 days

Blood samples drawn during the study will be analyzed to measure the PK parameters, such as concentration, exposure and half-life of VX-770 and its metabolites.

Pharmacokinetic (PK) parameters of VX-770 and its metabolites in plasma in the presence and absence of VX-809
70 days
PK parameters of VX-809 in plasma in the presence and absence of VX-770
70 days

Secondary Endpoints

Average Absolute Change From Baseline in Sweat Chloride at Day 15 and Week 4
Baseline, Day 15 and Week 4
Absolute Change From Baseline in Body Mass Index (BMI) at Week 24
Baseline, Week 24
Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score Through Week 24
Baseline, Through Week 24
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
LUM/IVAEXPERIMENTALFixed-dose combination with lumacaftor (LUM) 200 mg every 12 hours (q12h)/ ivacaftor (IVA) 250 mg q12h
PlaceboPLACEBO_COMPARATORMatching placebo q12h
Lumacaftor/Ivacaftor combinationEXPERIMENTALLumacaftor 400 milligram (mg) and ivacaftor 250 mg combination tablet orally twice daily for 24 weeks.
Arm 1 Part A: LUM 600 mg qd/ IVA 250 mg q12hEXPERIMENTALParticipants who received lumacaftor (LUM, VX-809) 600 milligram (mg) plus ivacaftor (IVA, VX-770) 250 mg fixed-dose combination (FDC) tablet orally in the morning and IVA 250 mg film-coated tablet orally in the evening, in the previous study VX12-809-103 or VX12-809-104, and will receive the same treatment in this study VX12-809-105 up to Week 96.
Arm 2 Part A: Placebo - LUM 600 mg qd/ IVA 250 mg q12hEXPERIMENTALParticipants who received placebo matched to LUM and IVA tablet in the previous study VX12-809-103 or VX12-809-104, and will receive LUM 600 mg plus IVA 250 mg FDC tablet orally in the morning and IVA 250 mg film-coated tablet orally in the evening in this study VX12-809-105 up to Week 96.
Arm 3 Part A: LUM 400 mg q12h/ IVA 250 mg q12hEXPERIMENTALParticipants who received LUM 400 mg plus IVA 250 mg FDC tablet orally in the morning and evening in the previous study VX12-809-103 or VX12-809-104, and will receive the same treatment in this study VX12-809-105 up to Week 96.
Arm 4 Part A: Placebo - LUM 400 mg q12h/ IVA 250 mg q12hEXPERIMENTALParticipants who received placebo matched to LUM and IVA tablet in the previous study VX12-809-103 or VX12-809-104, and will receive LUM 400 mg plus IVA 250 mg FDC tablet orally in the morning and evening in this study VX12-809-105 up to Week 96.
Arm 5 Part A: Observational CohortNO_INTERVENTIONParticipants who received either LUM 600 mg plus IVA 250 mg FDC tablet orally in the morning and IVA 250 mg film-coated tablet orally in the evening OR LUM 400 mg plus IVA 250 mg FDC tablet orally in the morning and evening OR placebo matched to LUM and IVA in the morning and evening, in the previous study VX12-809-103 or VX12-809-104, and will be observed (will not receive study drug) in this study VX12-809-105 for up to 2 years.
Arm 6 Part B: LUM 400 mg q12h/ IVA 250 mg q12hEXPERIMENTALParticipants who received LUM 400 mg plus IVA 250 mg FDC tablet orally in the morning and evening in Cohort 4 of the previous study VX09-809-102, and will receive the same treatment in this study VX12-809-105 up to Week 96.
Arm 7 Part B: Placebo - LUM 400 mg q12h/ IVA 250 mg q12hEXPERIMENTALParticipants who received placebo matched to LUM and IVA tablet in Cohort 4 of the previous study VX09-809-102, and will receive LUM 400 mg plus IVA 250 mg FDC tablet orally in the morning and evening in this study VX12-809-105 up to Week 96.
Lumacaftor/Ivacaftor (LUM/IVA)EXPERIMENTALPart A Cohort 1: Participants aged 6 through 8 years will receive LUM 200 milligram (mg) in fixed-dose combination with IVA 250 mg orally every 12 hours (q12h) for 14 days. Part A Cohort 2: Participants aged 9 through 11 years will receive LUM 200 mg in fixed-dose combination with IVA 250 mg orally q12h for 14 days. Part B: Participants aged 6 through 11 years will receive LUM 200 mg in fixed-dose combination with IVA 250 mg orally q12h for 24 weeks.
LUM 600 mg qd/IVA 250 mg q12hEXPERIMENTALLUM 600 milligram (mg) plus IVA 250 mg fixed-dose combination (FDC) tablet in the morning and IVA 250 mg film-coated tablet in the evening, up to Week 24.
LUM 400 mg q12h/ IVA 250 mg q12hEXPERIMENTALLUM 400 mg plus IVA 250 mg FDC tablet in the morning and in the evening, up to Week 24.
Cohort 1: PlaceboPLACEBO_COMPARATORParticipants homozygous (HO) for the F508del-CF transmembrane conductance regulator gene (CFTR) mutation received lumacaftor matched placebo once daily (qd) (Day 1 through Day 14), followed by lumacaftor matched placebo qd in combination with ivacaftor matched placebo every 12 hours (q12h) (Day 15 through Day 21).
Cohort 1: LUM 200 mg qd/LUM 200 mg qd+IVA 150 mg q12hEXPERIMENTALParticipants homozygous for the F508del-CFTR mutation received 200 milligram (mg) of lumacaftor (LUM) qd (Day 1 through Day 14), followed by 200 mg of lumacaftor qd in combination with 150 mg of ivacaftor (IVA) q12h (Day 15 through Day 21).
Cohort 1: LUM 200 mg qd/LUM 200 mg qd+IVA 250 mg q12hEXPERIMENTALParticipants homozygous for the F508del-CFTR mutation received 200 mg of lumacaftor alone qd (Day 1 through Day 14), followed by 200 mg of lumacaftor qd in combination with 250 mg of ivacaftor q12h (Day 15 through Day 21).
Cohort 2 and 3: Placebo (HO and HE)PLACEBO_COMPARATORParticipants homozygous or heterozygous for the F508del-CFTR mutation received lumacaftor matched placebo qd (Day 1 through Day 28), followed by lumacaftor matched placebo in combination with ivacaftor matched placebo q12h (Day 29 through Day 56).
Cohort 2: LUM 200 mg qd/LUM 200 mg qd+IVA 250 mg q12h (HO)EXPERIMENTALParticipants homozygous for the F508del-CFTR mutation received 200 mg of lumacaftor alone qd (Day 1 through Day 28), followed by 200 mg of lumacaftor qd in combination with 250 mg of ivacaftor q12h (Day 29 through Day 56).
Cohort 2: LUM 400 mg qd/LUM 400 mg qd+IVA 250 mg q12h (HO)EXPERIMENTALParticipants homozygous for the F508del-CFTR mutation received 400 mg of lumacaftor alone qd (Day 1 through Day 28), followed by 400 mg of lumacaftor qd in combination with 250 mg of ivacaftor q12h (Day 29 through Day 56).
Cohort 2: LUM 600 mg qd/LUM 600 mg qd+IVA 250 mg q12h (HO&HE)EXPERIMENTALParticipants homozygous or heterozygous for the F508del-CFTR mutation received 600 mg of lumacaftor alone qd (Day 1 through Day 28), followed by 600 mg of lumacaftor qd in combination with 250 mg of ivacaftor q12h (Day 29 through Day 56).
Cohort 3: LUM 400 mg q12h/LUM 400 mg q12h+IVA 250 mg q12h (HO)EXPERIMENTALParticipants homozygous for the F508del-CFTR mutation received 400 mg of lumacaftor alone q12h (Day 1 through Day 28), followed by 400 mg of lumacaftor q12h in combination with 250 mg of ivacaftor q12h (Day 29 through Day 56).
Cohort 4: PlaceboPLACEBO_COMPARATORParticipants heterozygous for the F508del-CFTR mutation received lumacaftor matched placebo in combination with ivacaftor matched placebo q12h (Day 1 through Day 56).
Cohort 4: LUM 400 mg q12h+IVA 250 mg q12hEXPERIMENTALParticipants heterozygous for the F508del-CFTR mutation received 400 mg of lumacaftor q12h in combination with 250 mg of ivacaftor q12h (Day 1 through Day 56).
VX-809, 25 mgEXPERIMENTALVX-809, 25 milligram (mg) capsule orally once daily for 28 days.
VX-809, 50 mgEXPERIMENTALVX-809, 50 mg capsule orally once daily for 28 days.
VX-809, 100 mgEXPERIMENTALVX-809, 100 mg capsule orally once daily for 28 days.
VX-809, 200 mgEXPERIMENTALVX-809, 200 mg capsule orally once daily for 28 days.
Part AEXPERIMENTALA single dose of 2 fixed-dose combination tablets of 200mg lumacaftor/125mg ivacaftor (total of 400mg lumacaftor/250mg ivacaftor) in the fed state and fasted state with a 14 day washout period in between each dosing occasion
Part BEXPERIMENTALA single dose of 3 fixed-dose combination tablets of 200mg lumacaftor/83mg ivacaftor (total of 600mg lumacaftor and 250mg ivacaftor) in the fed with a 14 day washout period in between dosing occasions
Treatment Group (Cohort 1)EXPERIMENTALSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and ciprofloxacin through Day 21.
Treatment Group (Cohort 2)EXPERIMENTALSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and itraconazole through Day 21.
Treatment Group (Cohort 3)EXPERIMENTALSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and rifampin through Day 24.
Treatment Group (Cohort 4)EXPERIMENTALSubjects will take a single dose of lumacaftor in combination with ivacaftor on 3 occasions separated by 7 days.
Treatment ArmEXPERIMENTALSubjects randomized to study drug will take VX-809 for 14 days followed by a 14 day washout. Next subjects will take VX-770 for 14 days followed by a 14 day washout. Lastly, subjects will take both VX-809 and VX-770 for 14 days.
Placebo ArmPLACEBO_COMPARATORSubjects randomized to placebo will take VX-809 placebo for 14 days followed by a 14 day washout. Next subjects will take VX-770 placebo for 14 days followed by a 14 day washout. Lastly, subjects will take both VX-809 and VX-770 placebo for 14 days.
Treatment Period 1EXPERIMENTAL -
Treatment Period 2EXPERIMENTAL -
Treatment Period 3EXPERIMENTAL -

Interventions

NameTypeDescription
VX-809DRUG -
PlaceboDRUG -
VX-770DRUG -
LumacaftorDRUG -
IvacaftorDRUG -
Lumacaftor Plus Ivacaftor CombinationDRUGFixed dose combination tablet, oral use
Lumacaftor PlaceboDRUGMatching placebo tablet.
Ivacaftor PlaceboDRUGMatching placebo tablet.
moxifloxacin hydrochlorideDRUG -
CiprofloxacinDRUG750 mg taken every 12 hours
ItraconazoleDRUG200mg taken once daily
RifampinDRUG600mg taken once daily
VX-809 placeboDRUGcapsule, taken once daily
VX-770 placeboDRUGtablet, taken once every 12 hours
VX-809 & VX-770DRUGVX-809 capsule, once daily, and VX-770 tablets, once every 12 hours, for 14 days
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Eligibility Criteria

Age Range6 Years to 11 Years
SexALL
Healthy VolunteersNo
Study Sites53

Inclusion Criteria: * Subjects who weigh ≥15 kg without shoes a the Screening Visit * Subjects with confirmed diagnosis of CF at the Screening Visit. * Subjects who are homozygous for the F508del CFTR mutation * Subjects with ppFEV1 of ≥70 percentage points adjusted for age, sex, and height * Subje...

Countries:United StatesAustraliaBelgiumCanadaDenmarkFranceGermanySwedenUnited KingdomAustriaCzechiaIrelandItalyNetherlandsSpainNew Zealand
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Competitive Landscape -Cystic Fibrosis 20 trials

Frequently asked questions about VX-809

What is VX-809 used for in cystic fibrosis?

VX-809 is an investigational small molecule developed for cystic fibrosis, a respiratory disease. It has been studied in patients who carry the F508del-CFTR mutation, including those homozygous for that mutation. Clinical work has also combined VX-809 with ivacaftor, also known as VX-770, in cystic fibrosis patients.

What does VX-809 target?

VX-809 targets CFTR, the cystic fibrosis transmembrane conductance regulator protein. CFTR is the protein defective in cystic fibrosis. By acting on this protein target, VX-809 is designed as a small molecule therapeutic for the disease. Trial enrollment in the VX-809 program has been biomarker selected, meaning patients were identified by their CFTR mutation status.

Who is developing VX-809?

VX-809 is being developed by Vertex Pharmaceuticals Incorporated, which trades under the ticker VRTX. Vertex has sponsored the clinical trial program for VX-809 in cystic fibrosis, including Phase 1 drug-drug interaction studies, a Phase 2 study, and a Phase 3 study of VX-809 in combination with ivacaftor.

What phase is VX-809 in?

VX-809 has reached Phase 3 in cystic fibrosis. It is an investigational agent and is not described as approved. The Phase 3 study, NCT02514473, evaluated lumacaftor in combination with ivacaftor in subjects with cystic fibrosis who are homozygous for the F508del-CFTR mutation, and that trial is completed.

What clinical trials is VX-809 in?

Four completed trials are listed for VX-809. NCT02514473 was a Phase 3 study of lumacaftor with ivacaftor in F508del homozygous cystic fibrosis patients. NCT00865904 was a Phase 2 study in cystic fibrosis subjects with the delta F508 CFTR mutation. NCT01216046 and NCT00966602 were Phase 1 drug-drug interaction studies of VX-809 and VX-770 in healthy subjects.

Is VX-809 the same as lumacaftor?

Yes, VX-809 is also known as lumacaftor. The Phase 3 trial NCT02514473 is titled as a study of lumacaftor in combination with ivacaftor in cystic fibrosis subjects homozygous for the F508del-CFTR mutation, which connects the VX-809 code name to the lumacaftor name used in that study.