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Study of VX-121 in Healthy Subjects and in Subjects With Cystic Fibrosis

A Phase 1/2 Study of VX-121 in Healthy Subjects and in Subjects With Cystic Fibrosis

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03768089
Enrollment
115
Registered
2018-12-07
Start date
2018-03-20
Completion date
2019-05-03
Last updated
2022-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cystic Fibrosis

Brief summary

The purpose of this study is to evaluate safety and tolerability of VX-121 in healthy subjects and in subjects with cystic fibrosis (CF).

Interventions

DRUGPlacebo (matched to VX-121 suspension)

Placebo matched to VX-121 suspension for oral administration.

DRUGVX-121 (Suspension)

Suspension for oral administration.

Fixed-dose combination tablet for oral administration.

DRUGIVA

Tablet for oral administration.

DRUGPlacebo (matched to TEZ/IVA)

Placebo matched to TEZ/IVA for oral administration.

Placebo matched to IVA for oral administration.

DRUGVX-121 (Tablet)

Tablet for oral administration.

DRUGPlacebo (matched to VX-121 tablet)

Placebo matched to VX-121 tablet for oral administration.

Sponsors

Vertex Pharmaceuticals Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Part A, B, and C: Healthy Volunteers * Female subjects must be of non-childbearing potential * Between the ages of 18 and 55 years, inclusive * Body mass index (BMI) of 18.0 to 32.0 kg/m2, inclusive, and a total body weight \>50 kg * Part D: Subjects with CF * Heterozygous for F508del and an MF mutation (F/MF) * FEV1 value ≥40% and ≤90% of predicted mean for age, sex, and height * Body weight ≥35 kg Key

Exclusion criteria

* Part A, B and C: Healthy Volunteers * Any condition possibly affecting drug absorption * History of febrile illness or other acute illness within 5 days before the first study drug dose * Part D: Subjects with CF * History of clinically significant cirrhosis with or without portal hypertension * History of solid organ or hematological transplantation * Lung infection with organisms associated with a more rapid decline in pulmonary status Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)From Day 1 Through Safety Follow-up (up to Day 15 for Part A [except Cohorts A3 and A9], up to Day 26 for Cohort A3, up to Day 34 for Cohort A9, up to Day 20 for Part B, up to Day 24 for Part C and up to Week 9 for Part D)

Secondary

MeasureTime frameDescription
Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121Cohorts A1-5 (Except A3): Pre-dose up to 240 hours post-dose; Cohorts A3 and A9: Pre-dose up to 168 hours post-dose
Part B: Maximum Observed Concentration (Cmax) of VX-121Day 1, Day 5, and Day 10
Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 1, Day 5, and Day 10
Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Pre-dose at Day 5 and Day 10
Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)Day 1, Day 7, and Day 14
Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)Day 1, Day 7, and Day 14
Part A: Maximum Observed Concentration (Cmax) of VX-121Cohorts A1-5 (Except A3): Pre-dose up to 240 hours post-dose; Cohorts A3 and A9: Pre-dose up to 168 hours post-dose
Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)Day 1 and Day 15
Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)Day 1 and Day 15
Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)Pre-dose at Day 8, Day 15, and Day 29
Part D: Absolute Change in Sweat Chloride (SwCl) ConcentrationsFrom Baseline Through Day 29Sweat samples were collected using an approved collection device.
Part D: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)From Baseline Through Day 29FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.
Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)Pre-dose at Day 7 and Day 14

Countries

Netherlands, United Kingdom

Participant flow

Recruitment details

A total of 115 unique participants enrolled in this study.

Pre-assignment details

This study included 4 parts: Parts A, B, and C were conducted in healthy adult participants; Part D was conducted in adult cystic fibrosis (CF) participants.

Participants by arm

ArmCount
Part A: Pooled Placebo (Cohorts A1-5; Except A3)
Participants received single dose of placebo matched to VX-121.
8
Part A: VX-121 (Cohort A1)
Participants received single dose of VX-121 10 mg.
5
Part A: VX-121 (Cohort A2)
Participants received single dose of VX-121 20 mg.
6
Part A: VX-121 (Cohort A3)
Participants received single dose of VX-121 5 mg or matched placebo without milk, followed by open label VX-121 5 mg with milk.
6
Part A: VX-121 (Cohort A4)
Participants received single dose of VX-121 40 mg.
6
Part A: VX-121 (Cohort A5)
Participants received single dose of VX-121 60 mg.
6
Part A: Cohort A9
Participants received single dose of VX-121 10 mg suspension on Day 1, VX-121 10 mg tablet on Day 9, followed by VX-121 10 mg tablet with milk on Day 17.
8
Part B: Pooled Placebo (Cohorts B1-4)
Participants received placebo matched to VX-121 for 10 days.
9
Part B: VX-121 (Cohort B1)
Participants received VX-121 10 mg qd for 10 days.
6
Part B: VX-121 (Cohort B2)
Participants received VX-121 20 mg qd for 10 days.
6
Part B: VX-121 (Cohort B3)
Participants received VX-121 40 mg qd for 10 days.
5
Part B: VX-121 (Cohort B4)
Participants received VX-121 60 mg qd for 10 days.
6
Part C: Pooled Placebo (Cohorts C1-3)
Participants received placebo matched to VX-121/TEZ/IVA in for 14 days.
6
Part C: VX-121 (Cohort C1)
Participants received VX-121 10 mg qd/TEZ 100 mg qd/IVA 150 mg q12h for 14 days.
6
Part C: VX-121 (Cohort C2)
Participants received VX-121 20 mg qd/TEZ 100 mg qd/IVA 150 mg q12h for 14 days.
7
Part C: VX-121 (Cohort C3)
Participants received VX-121 5 mg qd/TEZ 100 mg qd/IVA 150 mg q12h for 14 days.
6
Part D: Placebo
Participants received placebo matched to VX-121/TEZ/IVA for 4 weeks.
3
Part D: VX-121/TEZ/IVA
Participants received VX-121 5 mg qd/TEZ 100 mg qd/IVA 150 mg q12h for 4 weeks.
9
Total114

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015FG016FG017
Part ALost to Follow-up000010000000000000
Part CRandomized, Never Dosed000000000000001000

Baseline characteristics

CharacteristicTotalPart A: VX-121 (Cohort A1)Part A: VX-121 (Cohort A2)Part A: VX-121 (Cohort A3)Part A: Pooled Placebo (Cohorts A1-5; Except A3)Part A: VX-121 (Cohort A4)Part A: VX-121 (Cohort A5)Part A: Cohort A9Part B: Pooled Placebo (Cohorts B1-4)Part B: VX-121 (Cohort B1)Part B: VX-121 (Cohort B2)Part B: VX-121 (Cohort B3)Part B: VX-121 (Cohort B4)Part C: Pooled Placebo (Cohorts C1-3)Part C: VX-121 (Cohort C1)Part C: VX-121 (Cohort C2)Part C: VX-121 (Cohort C3)Part D: PlaceboPart D: VX-121/TEZ/IVA
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
114 Participants5 Participants6 Participants6 Participants8 Participants6 Participants6 Participants8 Participants9 Participants6 Participants6 Participants5 Participants6 Participants6 Participants6 Participants7 Participants6 Participants3 Participants9 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants0 Participants1 Participants1 Participants0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
109 Participants5 Participants5 Participants5 Participants8 Participants6 Participants5 Participants7 Participants9 Participants6 Participants6 Participants5 Participants6 Participants6 Participants5 Participants7 Participants6 Participants3 Participants9 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
6 Participants0 Participants0 Participants0 Participants1 Participants2 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
8 Participants0 Participants0 Participants2 Participants1 Participants0 Participants0 Participants1 Participants2 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
7 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
White
90 Participants5 Participants6 Participants4 Participants5 Participants4 Participants5 Participants4 Participants6 Participants5 Participants6 Participants5 Participants5 Participants4 Participants5 Participants5 Participants5 Participants3 Participants8 Participants
Sex: Female, Male
Female
5 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants
Sex: Female, Male
Male
109 Participants5 Participants6 Participants6 Participants8 Participants5 Participants5 Participants8 Participants8 Participants6 Participants6 Participants5 Participants6 Participants6 Participants6 Participants6 Participants6 Participants3 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
EG017
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 50 / 60 / 60 / 60 / 60 / 80 / 90 / 60 / 60 / 60 / 60 / 60 / 60 / 70 / 60 / 30 / 9
other
Total, other adverse events
1 / 84 / 52 / 64 / 61 / 62 / 67 / 87 / 93 / 65 / 64 / 65 / 64 / 63 / 66 / 73 / 62 / 37 / 9
serious
Total, serious adverse events
0 / 80 / 50 / 60 / 60 / 60 / 60 / 80 / 90 / 60 / 60 / 60 / 60 / 60 / 60 / 70 / 61 / 30 / 9

Outcome results

Primary

Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)

Time frame: From Day 1 Through Safety Follow-up (up to Day 15 for Part A [except Cohorts A3 and A9], up to Day 26 for Cohort A3, up to Day 34 for Cohort A9, up to Day 20 for Part B, up to Day 24 for Part C and up to Week 9 for Part D)

Population: Safety Set included all participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (NUMBER)
Part B: VX-121 (Cohort B1)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs1 participants
Part B: VX-121 (Cohort B1)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part B: VX-121 (Cohort B2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs4 participants
Part B: VX-121 (Cohort B2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part B: VX-121 (Cohort B3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs2 participants
Part B: VX-121 (Cohort B3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A3: With Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs4 participants
Part A: VX-121 (Cohort A3: With Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A4)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A4)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs1 participants
Part A: VX-121 (Cohort A5)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A5)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs2 participants
Part A: VX-121 (Cohort A9: Suspension)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs7 participants
Part A: VX-121 (Cohort A9: Suspension)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A9: Tablet Without Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs7 participants
Part A: VX-121 (Cohort A9: Tablet Without Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A9: Tablet With Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part A: VX-121 (Cohort A9: Tablet With Milk)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs3 participants
Part B: VX-121 (Cohort B2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part B: VX-121 (Cohort B2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs5 participants
Part B: VX-121 (Cohort B3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part B: VX-121 (Cohort B3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs4 participants
Part B: VX-121 (Cohort B4)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part B: VX-121 (Cohort B4)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs5 participants
Part C: Pooled Placebo (Cohorts C1-3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs4 participants
Part C: Pooled Placebo (Cohorts C1-3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part C: VX-121 (Cohort C1)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs3 participants
Part C: VX-121 (Cohort C1)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part C: VX-121 (Cohort C2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs6 participants
Part C: VX-121 (Cohort C2)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part C: VX-121 (Cohort C3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs3 participants
Part C: VX-121 (Cohort C3)Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Part D: PlaceboSafety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs2 participants
Part D: PlaceboSafety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs1 participants
Part D: VX-121/TEZ/IVASafety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With TEAEs7 participants
Part D: VX-121/TEZ/IVASafety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Participants With SAEs0 participants
Secondary

Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121

Time frame: Cohorts A1-5 (Except A3): Pre-dose up to 240 hours post-dose; Cohorts A3 and A9: Pre-dose up to 168 hours post-dose

Population: PK set.

ArmMeasureValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-1217.72 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 1.93
Part B: VX-121 (Cohort B2)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12120.7 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 7.03
Part B: VX-121 (Cohort B3)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-1216.32 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 2.54
Part A: VX-121 (Cohort A3: With Milk)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-1215.36 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 2.09
Part A: VX-121 (Cohort A4)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12172.2 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 28.9
Part A: VX-121 (Cohort A5)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12166.6 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 9.18
Part A: VX-121 (Cohort A9: Suspension)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12115.7 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 3.88
Part A: VX-121 (Cohort A9: Tablet Without Milk)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12114.6 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 3.85
Part A: VX-121 (Cohort A9: Tablet With Milk)Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-12113.1 microgram*hour per milliliter (mcg*h/mL)Standard Deviation 2.56
Secondary

Part A: Maximum Observed Concentration (Cmax) of VX-121

Time frame: Cohorts A1-5 (Except A3): Pre-dose up to 240 hours post-dose; Cohorts A3 and A9: Pre-dose up to 168 hours post-dose

Population: The pharmacokinetic (PK) set included all participants who received at least 1 dose of study drug and for whom the primary PK data are considered sufficient and interpretable.

ArmMeasureValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part A: Maximum Observed Concentration (Cmax) of VX-1210.134 microgram per milliliter (mcg/mL)Standard Deviation 0.0295
Part B: VX-121 (Cohort B2)Part A: Maximum Observed Concentration (Cmax) of VX-1210.247 microgram per milliliter (mcg/mL)Standard Deviation 0.0515
Part B: VX-121 (Cohort B3)Part A: Maximum Observed Concentration (Cmax) of VX-1210.0705 microgram per milliliter (mcg/mL)Standard Deviation 0.0152
Part A: VX-121 (Cohort A3: With Milk)Part A: Maximum Observed Concentration (Cmax) of VX-1210.061 microgram per milliliter (mcg/mL)Standard Deviation 0.0143
Part A: VX-121 (Cohort A4)Part A: Maximum Observed Concentration (Cmax) of VX-1210.893 microgram per milliliter (mcg/mL)Standard Deviation 0.216
Part A: VX-121 (Cohort A5)Part A: Maximum Observed Concentration (Cmax) of VX-1211.04 microgram per milliliter (mcg/mL)Standard Deviation 0.263
Part A: VX-121 (Cohort A9: Suspension)Part A: Maximum Observed Concentration (Cmax) of VX-1210.181 microgram per milliliter (mcg/mL)Standard Deviation 0.0458
Part A: VX-121 (Cohort A9: Tablet Without Milk)Part A: Maximum Observed Concentration (Cmax) of VX-1210.178 microgram per milliliter (mcg/mL)Standard Deviation 0.0447
Part A: VX-121 (Cohort A9: Tablet With Milk)Part A: Maximum Observed Concentration (Cmax) of VX-1210.156 microgram per milliliter (mcg/mL)Standard Deviation 0.0352
Secondary

Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121

Time frame: Day 1, Day 5, and Day 10

Population: PK set. Here, the number analyzed signifies those participants who were evaluable for this outcome measure at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 12.62 mcg*h/mLStandard Deviation 0.435
Part B: VX-121 (Cohort B1)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 1011.5 mcg*h/mLStandard Deviation 2.52
Part B: VX-121 (Cohort B1)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 510.3 mcg*h/mLStandard Deviation 1.84
Part B: VX-121 (Cohort B2)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 17.11 mcg*h/mLStandard Deviation 1.27
Part B: VX-121 (Cohort B2)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 1038.2 mcg*h/mLStandard Deviation 9.26
Part B: VX-121 (Cohort B2)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 530.1 mcg*h/mLStandard Deviation 6.76
Part B: VX-121 (Cohort B3)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 553.8 mcg*h/mLStandard Deviation 10.7
Part B: VX-121 (Cohort B3)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 114.4 mcg*h/mLStandard Deviation 1.08
Part B: VX-121 (Cohort B3)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 1058.7 mcg*h/mLStandard Deviation 12.6
Part A: VX-121 (Cohort A3: With Milk)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 127.5 mcg*h/mLStandard Deviation 4.3
Part A: VX-121 (Cohort A3: With Milk)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 1097.5 mcg*h/mLStandard Deviation 17.2
Part A: VX-121 (Cohort A3: With Milk)Part B: Area Under the Concentration Versus Time Curve During the Dosing Interval (AUCtau) of VX-121Day 586.6 mcg*h/mLStandard Deviation 16.6
Secondary

Part B: Maximum Observed Concentration (Cmax) of VX-121

Time frame: Day 1, Day 5, and Day 10

Population: PK set. Here, the number analyzed signifies those participants who were evaluable for this outcome measure at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 10.153 mcg/mLStandard Deviation 0.026
Part B: VX-121 (Cohort B1)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 100.574 mcg/mLStandard Deviation 0.122
Part B: VX-121 (Cohort B1)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 50.497 mcg/mLStandard Deviation 0.0889
Part B: VX-121 (Cohort B2)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 10.418 mcg/mLStandard Deviation 0.0667
Part B: VX-121 (Cohort B2)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 101.94 mcg/mLStandard Deviation 0.41
Part B: VX-121 (Cohort B2)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 51.41 mcg/mLStandard Deviation 0.316
Part B: VX-121 (Cohort B3)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 52.67 mcg/mLStandard Deviation 0.564
Part B: VX-121 (Cohort B3)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 10.803 mcg/mLStandard Deviation 0.0529
Part B: VX-121 (Cohort B3)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 103.07 mcg/mLStandard Deviation 0.667
Part A: VX-121 (Cohort A3: With Milk)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 11.43 mcg/mLStandard Deviation 0.217
Part A: VX-121 (Cohort A3: With Milk)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 105.07 mcg/mLStandard Deviation 0.803
Part A: VX-121 (Cohort A3: With Milk)Part B: Maximum Observed Concentration (Cmax) of VX-121Day 54.36 mcg/mLStandard Deviation 0.789
Secondary

Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121

Time frame: Pre-dose at Day 5 and Day 10

Population: PK set. Here, the number analyzed signifies those participants who were evaluable for this outcome measure at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 50.391 mcg/mLStandard Deviation 0.0694
Part B: VX-121 (Cohort B1)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 100.484 mcg/mLStandard Deviation 0.109
Part B: VX-121 (Cohort B2)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 101.64 mcg/mLStandard Deviation 0.414
Part B: VX-121 (Cohort B2)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 51.16 mcg/mLStandard Deviation 0.266
Part B: VX-121 (Cohort B3)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 52.07 mcg/mLStandard Deviation 0.537
Part B: VX-121 (Cohort B3)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 102.40 mcg/mLStandard Deviation 0.637
Part A: VX-121 (Cohort A3: With Milk)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 52.94 mcg/mLStandard Deviation 0.759
Part A: VX-121 (Cohort A3: With Milk)Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121Day 103.81 mcg/mLStandard Deviation 0.792
Secondary

Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Day 1, Day 7, and Day 14

Population: PK set. Here, the number analyzed signifies those participants who were evaluable for this outcome measure at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 7107 mcg*h/mLStandard Deviation 24.8
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 13.51 mcg*h/mLStandard Deviation 0.813
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 1418.4 mcg*h/mLStandard Deviation 10.7
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 14139 mcg*h/mLStandard Deviation 29.7
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 156.1 mcg*h/mLStandard Deviation 16.6
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 718.8 mcg*h/mLStandard Deviation 12.3
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 16.68 mcg*h/mLStandard Deviation 2.49
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 1417.6 mcg*h/mLStandard Deviation 10.2
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 16.16 mcg*h/mLStandard Deviation 1.36
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 7103 mcg*h/mLStandard Deviation 41.1
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 14.08 mcg*h/mLStandard Deviation 1.63
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 14143 mcg*h/mLStandard Deviation 64.1
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 7133 mcg*h/mLStandard Deviation 51.6
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 715.2 mcg*h/mLStandard Deviation 9.34
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 1432.2 mcg*h/mLStandard Deviation 17.3
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 14138 mcg*h/mLStandard Deviation 60.8
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 1426.6 mcg*h/mLStandard Deviation 14.5
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 732.6 mcg*h/mLStandard Deviation 17.3
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 120.7 mcg*h/mLStandard Deviation 7.03
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 721.7 mcg*h/mLStandard Deviation 10.6
Part B: VX-121 (Cohort B1)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 111.5 mcg*h/mLStandard Deviation 3.01
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 19.42 mcg*h/mLStandard Deviation 4.83
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 17.96 mcg*h/mLStandard Deviation 0.789
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 735.4 mcg*h/mLStandard Deviation 8.27
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 1441.1 mcg*h/mLStandard Deviation 8.29
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 150.9 mcg*h/mLStandard Deviation 7.11
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 7103 mcg*h/mLStandard Deviation 13.9
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 14112 mcg*h/mLStandard Deviation 10.4
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 124.9 mcg*h/mLStandard Deviation 6.61
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 7130 mcg*h/mLStandard Deviation 22.3
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 14167 mcg*h/mLStandard Deviation 24.7
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 19.61 mcg*h/mLStandard Deviation 5.51
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 7130 mcg*h/mLStandard Deviation 46.7
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 14194 mcg*h/mLStandard Deviation 82.7
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 15.85 mcg*h/mLStandard Deviation 1.64
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 711.6 mcg*h/mLStandard Deviation 3.26
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 1411.2 mcg*h/mLStandard Deviation 2.75
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 114.1 mcg*h/mLStandard Deviation 1.68
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 727.3 mcg*h/mLStandard Deviation 4.79
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 1425.3 mcg*h/mLStandard Deviation 4.35
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 726.5 mcg*h/mLStandard Deviation 12.7
Part B: VX-121 (Cohort B2)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 1422.6 mcg*h/mLStandard Deviation 8.19
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 7109 mcg*h/mLStandard Deviation 14.1
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 76.52 mcg*h/mLStandard Deviation 1.2
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 149.02 mcg*h/mLStandard Deviation 2.62
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 120.7 mcg*h/mLStandard Deviation 4.99
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 1426.4 mcg*h/mLStandard Deviation 24.3
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 19.37 mcg*h/mLStandard Deviation 1.97
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 1487.6 mcg*h/mLStandard Deviation 28.6
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 719.2 mcg*h/mLStandard Deviation 12.8
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 722.3 mcg*h/mLStandard Deviation 3.7
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 788.8 mcg*h/mLStandard Deviation 21
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 11.18 mcg*h/mLStandard Deviation 0.13
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 1424.2 mcg*h/mLStandard Deviation 12.3
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 7117 mcg*h/mLStandard Deviation 72.6
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 144.6 mcg*h/mLStandard Deviation 11.5
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 14200 mcg*h/mLStandard Deviation 144
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 17.57 mcg*h/mLStandard Deviation 3.18
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 147.34 mcg*h/mLStandard Deviation 1.63
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 14.30 mcg*h/mLStandard Deviation 0.504
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 14142 mcg*h/mLStandard Deviation 27
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 14.99 mcg*h/mLStandard Deviation 2.99
Part B: VX-121 (Cohort B3)Part C: Area Under the Concentration Versus Time Curve During a Dosing Interval (AUCtau) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 711.0 mcg*h/mLStandard Deviation 3.73
Secondary

Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Day 1, Day 7, and Day 14

Population: PK set. Here, the number analyzed signifies those participants who were evaluable for this outcome measure at specified time points.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 75.07 mcg/mLStandard Deviation 1.1
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 10.212 mcg/mLStandard Deviation 0.0501
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 142.14 mcg/mLStandard Deviation 1.2
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 146.44 mcg/mLStandard Deviation 1.36
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 15.97 mcg/mLStandard Deviation 1.33
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 72.15 mcg/mLStandard Deviation 1.27
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 10.521 mcg/mLStandard Deviation 0.191
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 141.77 mcg/mLStandard Deviation 0.941
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 11.02 mcg/mLStandard Deviation 0.158
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 74.79 mcg/mLStandard Deviation 2.03
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 10.779 mcg/mLStandard Deviation 0.343
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 146.45 mcg/mLStandard Deviation 2.88
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 79.48 mcg/mLStandard Deviation 3.09
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 71.52 mcg/mLStandard Deviation 0.889
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 144.11 mcg/mLStandard Deviation 1.86
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 149.49 mcg/mLStandard Deviation 3.76
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 141.39 mcg/mLStandard Deviation 0.651
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 73.91 mcg/mLStandard Deviation 1.8
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 11.09 mcg/mLStandard Deviation 0.327
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 71.18 mcg/mLStandard Deviation 0.735
Part B: VX-121 (Cohort B1)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 11.91 mcg/mLStandard Deviation 0.573
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 11.29 mcg/mLStandard Deviation 0.796
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 10.408 mcg/mLStandard Deviation 0.122
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 71.77 mcg/mLStandard Deviation 0.416
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 142.14 mcg/mLStandard Deviation 0.476
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 16.75 mcg/mLStandard Deviation 0.936
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 78.72 mcg/mLStandard Deviation 0.561
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 149.08 mcg/mLStandard Deviation 0.547
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 11.24 mcg/mLStandard Deviation 0.399
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 76.48 mcg/mLStandard Deviation 1.48
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 148.12 mcg/mLStandard Deviation 1.41
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 10.622 mcg/mLStandard Deviation 0.39
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 76.16 mcg/mLStandard Deviation 2.17
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 148.78 mcg/mLStandard Deviation 3.54
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 11.00 mcg/mLStandard Deviation 0.235
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 71.40 mcg/mLStandard Deviation 0.288
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 141.35 mcg/mLStandard Deviation 0.231
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 12.34 mcg/mLStandard Deviation 0.602
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 73.42 mcg/mLStandard Deviation 0.534
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 142.97 mcg/mLStandard Deviation 0.64
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 72.62 mcg/mLStandard Deviation 1.2
Part B: VX-121 (Cohort B2)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 142.26 mcg/mLStandard Deviation 0.744
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 75.20 mcg/mLStandard Deviation 0.606
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 70.364 mcg/mLStandard Deviation 0.122
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 141.20 mcg/mLStandard Deviation 0.402
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 11.12 mcg/mLStandard Deviation 0.259
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 142.55 mcg/mLStandard Deviation 2.2
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 11.51 mcg/mLStandard Deviation 0.349
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 147.27 mcg/mLStandard Deviation 1.4
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 71.88 mcg/mLStandard Deviation 1.21
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 72.65 mcg/mLStandard Deviation 0.434
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 77.50 mcg/mLStandard Deviation 1.24
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 10.0728 mcg/mLStandard Deviation 0.0102
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 143.14 mcg/mLStandard Deviation 1.32
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 75.56 mcg/mLStandard Deviation 3.67
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 15.11 mcg/mLStandard Deviation 1.35
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 149.07 mcg/mLStandard Deviation 6.13
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 10.662 mcg/mLStandard Deviation 0.32
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 140.385 mcg/mLStandard Deviation 0.108
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 10.770 mcg/mLStandard Deviation 0.169
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 146.70 mcg/mLStandard Deviation 1.19
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 11.24 mcg/mLStandard Deviation 0.727
Part B: VX-121 (Cohort B3)Part C: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and, IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 71.37 mcg/mLStandard Deviation 0.309
Secondary

Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Pre-dose at Day 7 and Day 14

Population: PK set. Here, the overall number of participants analyzed signifies those participants who were evaluable for this outcome measure and number analyzed signifies those participants who were evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 72.46 mcg/mLStandard Deviation 1.53
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 145.45 mcg/mLStandard Deviation 1.46
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 73.95 mcg/mLStandard Deviation 1.84
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 141.34 mcg/mLStandard Deviation 0.889
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 74.30 mcg/mLStandard Deviation 1.66
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 141.24 mcg/mLStandard Deviation 0.665
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 71.33 mcg/mLStandard Deviation 0.834
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 146.20 mcg/mLStandard Deviation 2.6
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 142.45 mcg/mLStandard Deviation 1.37
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 144.55 mcg/mLStandard Deviation 2.5
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 141.60 mcg/mLStandard Deviation 0.926
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 70.916 mcg/mLStandard Deviation 0.369
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 74.09 mcg/mLStandard Deviation 1.22
Part B: VX-121 (Cohort B1)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 71.28 mcg/mLStandard Deviation 0.763
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 72.00 mcg/mLStandard Deviation 0.589
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 71.37 mcg/mLStandard Deviation 0.321
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 141.72 mcg/mLStandard Deviation 0.452
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 72.57 mcg/mLStandard Deviation 0.776
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 143.27 mcg/mLStandard Deviation 0.646
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 74.53 mcg/mLStandard Deviation 0.512
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 146.40 mcg/mLStandard Deviation 1.17
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 75.08 mcg/mLStandard Deviation 2.06
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 145.51 mcg/mLStandard Deviation 1.72
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 70.768 mcg/mLStandard Deviation 0.23
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 140.750 mcg/mLStandard Deviation 0.252
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 141.87 mcg/mLStandard Deviation 0.509
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 72.09 mcg/mLStandard Deviation 1.11
Part B: VX-121 (Cohort B2)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 141.85 mcg/mLStandard Deviation 0.738
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 71.67 mcg/mLStandard Deviation 1.31
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 140.601 mcg/mLStandard Deviation 0.164
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 73.96 mcg/mLStandard Deviation 0.685
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 142.27 mcg/mLStandard Deviation 0.851
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 71.67 mcg/mLStandard Deviation 0.334
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 72.31 mcg/mLStandard Deviation 0.735
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 70.258 mcg/mLStandard Deviation 0.0426
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 141.73 mcg/mLStandard Deviation 0.977
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 140.357 mcg/mLStandard Deviation 0.0966
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 148.63 mcg/mLStandard Deviation 6.24
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 74.75 mcg/mLStandard Deviation 2.97
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 142.27 mcg/mLStandard Deviation 2.26
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 70.780 mcg/mLStandard Deviation 0.317
Part B: VX-121 (Cohort B3)Part C: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 145.03 mcg/mLStandard Deviation 1.18
Secondary

Part D: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)

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

Time frame: From Baseline Through Day 29

Population: FAS.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Part B: VX-121 (Cohort B1)Part D: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-2.0 percentage points
Part B: VX-121 (Cohort B2)Part D: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)8.3 percentage points
Secondary

Part D: Absolute Change in Sweat Chloride (SwCl) Concentrations

Sweat samples were collected using an approved collection device.

Time frame: From Baseline Through Day 29

Population: Full analysis set (FAS) included all randomized participants who carry the intended CF transmembrane conductance regulator protein (CFTR) allele mutation and have received at least 1 dose of study drug in the treatment period.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Part B: VX-121 (Cohort B1)Part D: Absolute Change in Sweat Chloride (SwCl) Concentrations2.6 millimole per liter (mmol/L)
Part B: VX-121 (Cohort B2)Part D: Absolute Change in Sweat Chloride (SwCl) Concentrations-47.7 millimole per liter (mmol/L)
Secondary

Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Day 1 and Day 15

Population: PK set.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 10.160 mcg*h/mLStandard Deviation 0.0766
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 152.50 mcg*h/mLStandard Deviation 1.07
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 121.9 mcg*h/mLStandard Deviation 5.48
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 1537.4 mcg*h/mLStandard Deviation 16
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 14.66 mcg*h/mLStandard Deviation 1.42
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 1537.8 mcg*h/mLStandard Deviation 14.3
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 10.630 mcg*h/mLStandard Deviation 0.213
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 1528.6 mcg*h/mLStandard Deviation 13.7
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 12.74 mcg*h/mLStandard Deviation 1.24
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 159.27 mcg*h/mLStandard Deviation 4.06
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 14.51 mcg*h/mLStandard Deviation 1.97
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 1516.4 mcg*h/mLStandard Deviation 6.7
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 11.25 mcg*h/mLStandard Deviation 0.529
Part B: VX-121 (Cohort B1)Part D: Area Under the Concentration Versus Time Curve From the Time of Dosing to the Last Measurable Concentration (AUC[0-last]) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 157.58 mcg*h/mLStandard Deviation 4.49
Secondary

Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Day 1 and Day 15

Population: PK set.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 10.0553 mcg/mLStandard Deviation 0.0207
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 150.389 mcg/mLStandard Deviation 0.116
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 15.38 mcg/mLStandard Deviation 1.39
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 156.80 mcg/mLStandard Deviation 2.13
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 11.26 mcg/mLStandard Deviation 0.162
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 155.56 mcg/mLStandard Deviation 1.19
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 10.243 mcg/mLStandard Deviation 0.0629
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 153.99 mcg/mLStandard Deviation 1.41
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 10.745 mcg/mLStandard Deviation 0.279
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 151.47 mcg/mLStandard Deviation 0.472
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 11.34 mcg/mLStandard Deviation 0.478
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 152.69 mcg/mLStandard Deviation 0.829
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 10.531 mcg/mLStandard Deviation 0.229
Part B: VX-121 (Cohort B1)Part D: Maximum Observed Concentration (Cmax) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 151.17 mcg/mLStandard Deviation 0.589
Secondary

Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)

Time frame: Pre-dose at Day 8, Day 15, and Day 29

Population: PK set.

ArmMeasureGroupValue (MEAN)Dispersion
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 150.819 mcg/mLStandard Deviation 0.412
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 80.258 mcg/mLStandard Deviation 0.0834
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 150.348 mcg/mLStandard Deviation 0.109
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)VX-121: Day 290.323 mcg/mLStandard Deviation 0.11
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 81.78 mcg/mLStandard Deviation 0.525
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 152.01 mcg/mLStandard Deviation 0.543
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)TEZ: Day 292.02 mcg/mLStandard Deviation 0.927
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 84.15 mcg/mLStandard Deviation 0.648
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 154.52 mcg/mLStandard Deviation 1.06
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-TEZ: Day 295.11 mcg/mLStandard Deviation 1.5
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 83.29 mcg/mLStandard Deviation 1.41
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 153.76 mcg/mLStandard Deviation 1.29
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M2-TEZ: Day 294.57 mcg/mLStandard Deviation 2.28
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 80.873 mcg/mLStandard Deviation 0.367
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 150.998 mcg/mLStandard Deviation 0.367
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)IVA: Day 290.916 mcg/mLStandard Deviation 0.586
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 81.38 mcg/mLStandard Deviation 0.427
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 151.76 mcg/mLStandard Deviation 0.619
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M1-IVA: Day 291.62 mcg/mLStandard Deviation 0.62
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 80.823 mcg/mLStandard Deviation 0.573
Part B: VX-121 (Cohort B1)Part D: Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ and Its Metabolites (M1-TEZ and M2-TEZ) and IVA and Its Metabolites (M1-IVA and M6-IVA)M6-IVA: Day 290.990 mcg/mLStandard Deviation 0.632

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026