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SUZ

Phase 3

Acute Pain | Small molecule | Pain |Vertex Pharmaceuticals Incorporated|Last Updated: Aug 1, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment1,075
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05553366Evaluation of Efficacy and Safety of VX-548 for Acute Pain After a BunionectomyPHASE3 COMPLETED 1,075Oct 3, 2022Dec 15, 2023Aug 1, 202521 United States
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Study Endpoints
Primary Endpoints
Time-weighted Sum of the Pain Intensity Difference (SPID) as Recorded on a Numeric Pain Rating Scale (NPRS) From 0 to 48 Hours (SPID48), SUZ Compared to Placebo
0 to 48 hours After First Dose of Study Drug

SPID was calculated as the sum of the product of time (in hours) elapsed since previous measurements and pain intensity difference. Pain intensity difference was calculated subtracting the baseline pain intensity score from the pain intensity score at each postdose time point (using pain rating score range: 0= no pain to 10= worst possible pain). SPID48 was calculated from 0 to 48 hours and the score range was -480 (worst score) to 480 (best score).

Secondary Endpoints
Time-weighted Sum of the Pain Intensity Difference (SPID) as Recorded on a Numeric Pain Rating Scale (NPRS) From 0 to 48 Hours (SPID48), SUZ Compared to HB/APAP
0 to 48 hours After First Dose of Study Drug
Time to Greater Than or Equal to (≥)2-Point Reduction in NPRS,SUZ Compared to Placebo
From Baseline Up to 48 Hours After First Dose of Study Drug
Time to ≥1-Point Reduction in NPRS, SUZ Compared to Placebo
From Baseline Up to 48 Hours After First Dose of Study Drug
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PlaceboPLACEBO_COMPARATORParticipants received placebo matched to suzetrigine (SUZ) and hydrocodone bitartrate/acetaminophen (HB/APAP) for 2 days.
Hydrocodone bitartrate/acetaminophen (HB/APAP)ACTIVE_COMPARATORParticipants received HB 5 milligrams (mg)/ APAP 325 mg every 6 hours (q6h) for 2 days.
Suzetrigine (SUZ)EXPERIMENTALParticipants received SUZ \[100 mg as first dose, followed by 50 mg every 12 hours (q12h)\] for 2 days.
Interventions
NameTypeDescription
SUZDRUGTablets for oral administration.
HB/APAPDRUGCapsules for oral administration.
Placebo (matched to SUZ)DRUGPlacebo matched to SUZ for oral administration.
Placebo (matched to HB/APAP)DRUGPlacebo matched to HB/APAP for oral administration.
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Eligibility Criteria
Age Range18 Years — 80 Years
SexALL
Healthy VolunteersNo
Study Sites21

Key Inclusion Criteria: * Before Surgery * Participants scheduled to undergo a primary unilateral bunionectomy with distal first metatarsal osteotomy (i.e., Austin procedure) and internal fixation under regional anesthesia (Mayo and popliteal sciatic block) * After Surgery * Participant is lu...

Countries:United States
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