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> Record changed: 2026-11-04

# Dose Escalation Study Evaluating the Safety and Pharmacokinetics of VX-272 in Healthy Participants

NCT07437105

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Phase

Phase 1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Recruitment status

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Participants

160

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Lead sponsor

Vertex Pharmaceuticals Incorporated

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Start date

2026-02-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

Number of sites

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Title and summary

**Summary**

The purpose of this study is to evaluate the safety, tolerability and pharmacokinetics of single and multiple ascending doses of VX-272 in combination with deutivacaftor (D-IVA) with or without tezacaftor (TEZ) in healthy subjects.

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Short title**

Dose Escalation Study Evaluating the Safety and Pharmacokinetics of VX-272 in Healthy Participants

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Official title**

A Phase 1, Randomized, Double-blind, Placebo-controlled, Dose Escalation Study Evaluating Safety and Pharmacokinetics of VX-272 in Healthy Subjects

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Status and phase

**Control arm**

Placebo

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Recruitment status**

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Phase**

Phase 1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Dates

**Completion date**

2027-06-26

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**First posted**

2026-02-27

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Registry last updated**

2026-09-23

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Primary completion date**

2027-06-26

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Start date**

2026-02-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Size and sites

**Participants**

160

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Participant count basis**

Estimated

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Planned participants**

160

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Protocol amendments**

2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Number of sites**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Sponsor and oversight

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Lead sponsor**

Vertex Pharmaceuticals Incorporated

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Identifiers

**Registry ID**

NCT07437105

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**ClinicalTrials.gov ID**

NCT07437105

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Treatment

**Masking**

Quadruple masking

**Masked roles**

Participants, Care providers, Investigators, Outcome assessors

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Outcomes

### Primary outcomes

1. Part A: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)  
Timeframe: From Signing of Informed Consent Form (ICF) up to Safety Follow Up (Up to Day 34)
2. Part B: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)  
Timeframe: From Signing of Informed Consent Form (ICF) up to Safety Follow Up (Up to Day 66)
3. Part C: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)  
Timeframe: From Signing of Informed Consent Form (ICF) up to Safety Follow Up (Up to Day 66)

### Secondary outcomes

1. Part A: Maximum Observed Plasma Concentration (Cmax) of VX-272  
Timeframe: From Day 1 up to Day 34
2. Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing Up to 24 Hours (AUC0-24h) of VX-272  
Timeframe: From Day 1 up to Day 34
3. Part B: Maximum Observed Plasma Concentration (Cmax) of VX-272  
Timeframe: From Day 1 up to Day 66
4. Part B: Area Under the Concentration Versus Time Curve From the Time of Dosing Up to 24 Hours (AUC0-24h) of VX-272  
Timeframe: From Day 1 up to Day 66
5. Part C: Maximum Observed Plasma Concentration (Cmax) of VX-272 and its Metabolites  
Timeframe: From Day 1 up to Day 66
6. Part C: Maximum Observed Plasma Concentration (Cmax) of TEZ and D-IVA and their Metabolites  
Timeframe: From Day 1 up to Day 28
7. Part C: Area Under the Concentration Versus Time Curve From the Time of Dosing Up to 24 Hours (AUC0-24h) of VX-272 and its Metabolites  
Timeframe: From Day 1 up to Day 66
8. Part C: Area Under the Concentration Versus Time Curve From the Time of Dosing Up to 24 Hours (AUC0-24h) of TEZ and D-IVA and their Metabolites  
Timeframe: From Day 1 up to Day 28

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Eligibility

**Sex**

All

**Age groups**

Adults

**Minimum age**

18 Years

**Maximum age**

55 Years

**Healthy volunteers**

Yes

Key Inclusion Criteria:

- Body mass index (BMI) of 18.0 to 32.0 kilogram per meter square (kg/m^2)
- A total body weight of more than (>) 50 kg
- Male and Female participants of non-childbearing potential

Key Exclusion Criteria:

- History of febrile illness or other acute illness that has not fully resolved within 14 days before the first dose of study drug
- Any condition possibly affecting drug absorption

Other protocol defined Inclusion/Exclusion criteria may apply.

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Sites

- Celerion - TempeTempe, United StatesRecruiting

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07437105)

## Related records

### Drugs (2)

- [Deutivacaftor](https://trialight.com/data/asset/deutivacaftor-a97573e7-c2ce-40af-b8ad-ec03a7b92e34.md)
- [Tezacaftor](https://trialight.com/data/asset/tezacaftor-361d103a-bfda-4757-93c8-8092efda7716.md)

### Lead sponsors (1)

- [Vertex Pharmaceuticals Incorporated](https://trialight.com/data/company/vertex-pharmaceuticals-incorporated-871a0178-8d63-4b70-a78f-fbfa131729c0.md)

### Conditions (1)

- [Cystic fibrosis](https://trialight.com/data/condition/cystic-fibrosis-6f9870eb-6ebc-5bec-a50b-34b0b323a7c3.md) Primary condition

### Targets (1)

- [CFTR](https://trialight.com/data/target/cftr-1582a227-49f3-5e47-a81a-1acc4b67f420.md)

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