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HTX-034 low dose

Phase 1

Bunions | Small molecule | Musculoskeletal |Heron Therapeutics, Inc.|Last Updated: Jun 9, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment78

FDA Designations

No designations recorded

Clinical trial landscape

HTX-034 low dose · 1 trial · 2 indications

Phase 1 1
NCT04398329Dose-Escalation Study of HTX-034 Following BunionectomyBunions
COMPLETED78 Analytics
PHASE1COMPLETED
Dose-Escalation Study of HTX-034 Following Bunionectomy
BunionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of TEAEs in Phases 1b/2
42 days

The data from Phase 1b and Phase 2 were combined for each treatment group because the dose for bupivacaine HCI, HTX-034 low dose and HTX-034 high dose were the same, in both Phases, respectively. In addition, the surgical procedure, protocol assessments, and participating sites were the same in both Phases.

AUC0-72 of Pain Scores
through 72 hours

Mean area under the curve (AUC) of the Numeric Rating Scale (NRS) of pain intensity scores with activity (windowed worst observation carried forward) through 72 hours. The NRS was an 11-point scale (0-10) where 0 represents "no pain" and 10 represents "worst pain imaginable". The data from Phase 1b and Phase 2 were combined for each treatment group because the dose for bupivacaine HCI, HTX-034 low dose and HTX-034 high dose were the same, in both Phases, respectively. In addition, the surgical procedure, protocol assessments, and participating sites were the same in both Phases.

Secondary Endpoints

Cmax for HTX-034
29 days
Tmax for HTX-034
29 days
AUClast for HTX-034
29 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Phase 1b: HTX-034 Low DoseEXPERIMENTALFixed low dose of HTX-034: 21.7 mg/4.3 mg/0.6 mg (bupivacaine/aprepitant/meloxicam doses).
Phase 1b: HTX-034 High DoseEXPERIMENTALIndividualized high dose of HTX-034: ranging from 30.6 mg/6.1 mg/0.9 mg to 51.5 mg/10.3 mg/1.5 mg (bupivacaine/aprepitant/meloxicam doses).
Phase 2: HTX-034 Low DoseEXPERIMENTALFixed low dose of HTX-034: 21.7 mg/4.3 mg/0.6 mg (bupivacaine/aprepitant/meloxicam doses).
Phase 2: HTX-034 High DoseEXPERIMENTALIndividualized high dose of HTX-034: ranging from 30.6 mg/6.1 mg/0.9 mg to 51.5 mg/10.3 mg/1.5 mg (bupivacaine/aprepitant/meloxicam doses).
Phase 1b/2: Bupivacaine HClACTIVE_COMPARATORBupivacaine HCl (without epinephrine) 0.5%: 50 mg

Interventions

NameTypeDescription
HTX-034 low doseDRUGHTX-034 (bupivacaine/aprepitant/meloxicam) fixed dose: 21.7 mg/4.3 mg/0.6 mg
HTX-034 high doseDRUGHTX-034 (bupivacaine/aprepitant/meloxicam) individualized dose: 30.6 mg/6.1 mg/0.9 mg to 51.5 mg/10.3 mg/1.5 mg
Luer lock applicatorDEVICEApplicator for instillation
Bupivacaine HClDRUGBupivacaine HCl 50 mg
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Is medically fit to undergo an elective unilateral, first metatarsal bunionectomy with osteotomy and internal fixation under regional anesthesia; no neuraxial technique (eg, no spinal, epidural, or general anesthesia). * Has an American Society of Anesthesiologists (ASA) Physi...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 10, 2026NCT04398329TRIAL_REMOVED: changed
MEDIUMJul 10, 2026NCT04398329TRIAL_REMOVED: changed
MEDIUMJul 10, 2026NCT04398329TRIAL_REMOVED: changed

Frequently asked questions about HTX-034 low dose

What is HTX-034 low dose used for?

HTX-034 low dose is an investigational small molecule being developed for the treatment of bunions and postoperative pain. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities. The drug is being studied for its safety and efficacy in patients following bunionectomy procedures.

Who makes HTX-034 low dose?

HTX-034 low dose is being developed by Heron Therapeutics, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol HRTX. The company is conducting clinical trials to evaluate the drug's potential in treating postoperative pain associated with bunionectomy procedures.

What phase is HTX-034 low dose in?

HTX-034 low dose is in Phase 1 clinical development. A Phase 1 dose-escalation study has been completed, which enrolled 78 participants in the United States. The drug remains investigational and has not received FDA approval for any indication.

What clinical trials is HTX-034 low dose in?

HTX-034 low dose has been studied in one completed Phase 1 clinical trial with the identifier NCT04398329. This was a dose-escalation study conducted in the United States following bunionectomy, enrolling 78 participants aged 18 years and older. The trial was randomized, double-blind, and active-controlled.

Is HTX-034 low dose the same as HTX-034?

HTX-034 low dose is a specific dosage form of the investigational drug HTX-034. The clinical trial NCT04398329 evaluated HTX-034 at various dose levels, including the low dose formulation. Both refer to the same drug candidate being developed by Heron Therapeutics for postoperative pain management.