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VX-407

Phase 2

Autosomal Dominant Polycystic Kidney Disease (ADPKD) | Small molecule | Nephrology |Vertex Pharmaceuticals Incorporated|Last Updated: Aug 28, 2026

Target and mechanism

Molecular targetPC1
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials5
Total Enrollment439

FDA Designations

No designations recorded

Clinical trial landscape

VX-407 · 5 trials · 1 indication

Phase 2 1Phase 1 4
NCT07161037Phase 2a Study of VX-407 in Participants With ADPKD Who Have a Subset of PKD1 Gene Variants (AGLOW)Autosomal Dominant Polycystic Kidney Disease (ADPKD)
ACTIVE NOT_RECRUITING26 Analytics
PHASE2ACTIVE NOT_RECRUITING
Phase 2a Study of VX-407 in Participants With ADPKD Who Have a Subset of PKD1 Gene Variants (AGLOW)
Autosomal Dominant Polycystic Kidney Disease (ADPKD)Unlock trial analytics

Study Endpoints

Primary Endpoints

htTKV on MRI Over Time
Baseline up to End of Study (Week 52)
Part A: Maximum Observed Plasma Concentration (Cmax) of LNG/EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part B (Optional): Maximum Observed Plasma Concentration (Cmax) of norelgestromin (NGMN) and norgestrel (NG) (active metabolites of NGM) and EE in the Absence and Presence of VX-407
From Day 1 up to Day 9 and Day 23 up to Day 31
Part C (Optional): Maximum Observed Plasma Concentration (Cmax) of NET and EE in the Absence and Presence of VX-407
From Day 1 up to Day 5 and Day 19 up to Day 23
Part D (Optional): Maximum Observed Plasma Concentration (Cmax) of DRSP and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of LNG/EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part B (Optional): Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of norelgestromin (NGMN) and norgestrel (NG) (active metabolites of NGM) and EE in the Absence and Presence of VX-407
From Day 1 up to Day 9 and Day 23 up to Day 31
Part C (Optional): Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of NET and EE in the Absence and Presence of VX-407
From Day 1 up to Day 5 and Day 19 up to Day 23
Part D (Optional): Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of DRSP and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part A: Maximum Observed Plasma Concentration (Cmax) of LNG and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part A: Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of LNG and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part B (Optional): Cmax of Norelgestromin (NGMN) and Norgestrel (NG) (Active Metabolites of NGM) and EE in the Absence and Presence of VX-407
From Day 1 up to Day 9 and Day 23 up to Day 31
Part B (Optional): AUC0-inf of NGMN and NG (Active Metabolites of NGM) and EE in the Absence and Presence of VX-407
From Day 1 up to Day 9 and Day 23 up to Day 31
Part C (Optional): Cmax of NET and EE in the Absence and Presence of VX-407
From Day 1 up to Day 5 and Day 19 up to Day 23
Part C (Optional): AUC0-inf of NET and EE in the Absence and Presence of VX-407
From Day 1 up to Day 5 and Day 19 up to Day 23
Part D (Optional): Cmax of DRSP and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part D (Optional): AUC0-inf of DRSP and EE in the Absence and Presence of VX-407
From Day 1 up to Day 7 and Day 21 up to Day 27
Part A: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
From Enrollment up to Day 10
Part B: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
From Enrollment up to Day 23

Secondary Endpoints

Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
From Day 1 up to Week 54
Maximum Observed Plasma Concentration (Cmax) of VX-407
From Day 1 up to Week 52
Area Under the Concentration Versus Time Curve (AUC) of VX-407
From Day 1 up to Week 52
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
VX-407EXPERIMENTALParticipants will receive VX-407 for up to 52 weeks.
Part A: VX-407 With Levonorgestrel/Ethinyl Estradiol (LNG/EE)EXPERIMENTALParticipants will receive a single dose of LNG/EE on Days 1 and 21 in fasted state. Participants will also receive VX-407 every 12 hours (q12h) from Days 8 through 26 in fasted state.
Part B (Optional): VX-407 With Norgestimate/Ethinyl Estradiol (NGM/EE)EXPERIMENTALParticipants will receive a single dose of NGM/EE on Days 1 and 23 in fasted state. Participants will also receive VX-407 q12h from Days 10 through 30 in fasted state.
Part C (Optional): VX-407 With Norethindrone/Ethinyl Estradiol (NET/EE)EXPERIMENTALParticipants will receive a single dose of NET/EE on Days 1 and 19 in fasted state. Participants will also receive VX-407 q12h from Days 6 through 22 in fasted state.
Part D (Optional): VX-407 With Drospirenone/Ethinyl Estradiol (DRSP/EE)EXPERIMENTALParticipants will receive a single dose of DRSP/EE on Days 1 and 21 in fasted state. Participants will also receive VX-407 q12h from Days 8 through 26 in fasted state.
Part A: Single Ascending DoseEXPERIMENTALParticipants will be randomized to receive a single dose of VX-407.
Placebo Part APLACEBO_COMPARATORParticipants will be randomized to receive placebo matched to VX-407.
Part B: Multiple Ascending DoseEXPERIMENTALParticipants will be randomized to receive multiple doses of VX-407.
Placebo Part BPLACEBO_COMPARATORParticipants will be randomized to receive placebo matched to VX-407.
Part A: Single Ascending Dose (SAD)EXPERIMENTALParticipants will be randomized to receive a single dose of different dose levels of VX-407.
Part A: PlaceboPLACEBO_COMPARATORParticipants will be randomized to receive placebo matched to VX-407.
Part B: Multiple Ascending Dose (MAD)EXPERIMENTALParticipants will be randomized to receive multiple doses of different dose levels of VX-407. The dose levels will be determined based on the data from Part A.
Part B: PlaceboPLACEBO_COMPARATORParticipants will be randomized to receive multiple doses of placebo matched to VX-407.
Part C: Drug-Drug InteractionEXPERIMENTALParticipants will be administered Midazolam (MDZ) in the presence or absence of VX-407. The dose levels will be determined based on the data from Part B.
Part DEXPERIMENTALParticipants will be randomized to receive VX-407 in 1 of 3 treatment sequences with 3 dosing periods to assess the relative bioavailability of VX-407 formulations and the effect of food on the pharmacokinetics of VX-407.

Interventions

NameTypeDescription
VX-407DRUGTablets for oral administration.
LNG/EEDRUGCombination Tablets for Oral Administration.
NGM/EEDRUGCombination Tablets for Oral Administration.
NET/EEDRUGCombination Tablets for Oral Administration.
DRSP/EEDRUGCombination Tablets for Oral Administration.
PlaceboDRUGSuspension for oral administration.
MidazolamDRUGSyrup for oral administration.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites43

Key Inclusion Criteria: * A pre-existing diagnosis of ADPKD as defined in the protocol * Willing and able to comply with scheduled visits and other study procedures * Participants with ADPKD with Mayo imaging classification (MIC) status of 1B (with htTKV ≥250 mL/m), 1C, 1D, or 1E confirmed by abdom...

Countries:United StatesBelgiumCanadaFranceGermanyNetherlandsSpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWAug 28, 2026NCT07792408NEW_TRIAL: changed
LOWAug 28, 2026NCT07792408NEW_TRIAL: changed
LOWAug 11, 2026NCT07161037lastUpdatePostDate: changed
LOWAug 11, 2026NCT07161037lastUpdatePostDate: changed
MEDIUMJul 30, 2026NCT07161037Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 30, 2026NCT07161037Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJun 16, 2026NCT07161037lastUpdatePostDate: changed
LOWJun 16, 2026NCT07161037lastUpdatePostDate: changed
LOWJun 16, 2026NCT07161037lastUpdatePostDate: changed
LOWJun 16, 2026NCT07161037lastUpdatePostDate: changed

Frequently asked questions about VX-407

What is VX-407 used for in Autosomal Dominant Polycystic Kidney Disease (ADPKD)?

VX-407 is an investigational small molecule being developed for Autosomal Dominant Polycystic Kidney Disease (ADPKD), a genetic disorder characterized by cyst growth in the kidneys. It is currently in Phase 2 clinical development and is being studied in patients with a subset of PKD1 gene variants.

What does VX-407 target?

VX-407 targets PC1, a protein encoded by the PKD1 gene. Mutations in PKD1 are a common cause of ADPKD, and VX-407 is designed to address the underlying protein defect. The drug is being studied specifically in patients with certain PKD1 gene variants.

Who makes VX-407?

VX-407 is being developed by Vertex Pharmaceuticals Incorporated, a biopharmaceutical company traded on the NASDAQ under the ticker symbol VRTX. Vertex is conducting clinical trials of VX-407 in healthy volunteers and in patients with ADPKD.

What phase is VX-407 in?

VX-407 is in Phase 2 clinical development. It has completed three Phase 1 trials in healthy participants and is currently in an active Phase 2a study called AGLOW, which is enrolling patients with ADPKD who have a subset of PKD1 gene variants.

What clinical trials is VX-407 in?

VX-407 has been studied in several clinical trials, including NCT06345755, NCT07022119, and NCT07074327, all Phase 1 studies in healthy participants. The active Phase 2a trial is NCT07161037, known as AGLOW, which is evaluating VX-407 in patients with ADPKD who have specific PKD1 gene variants.

Is VX-407 the same as any other drug?

VX-407 is the sole name provided for this investigational drug. It is not known to have any alternative names or aliases. The drug is being developed exclusively by Vertex Pharmaceuticals for the treatment of Autosomal Dominant Polycystic Kidney Disease.