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Intra-articular Lidocaine

Phase 1

Muscle Inhibition | Small molecule | Other |Community Health Systems, Inc.|Last Updated: May 1, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment45

FDA Designations

No designations recorded

Clinical trial landscape

Intra-articular Lidocaine · 1 trial · 2 indications

Early Phase 1 1
NCT06999057Quadriceps Motor Unit Adaptation to Simulated Knee InjuryMuscle Inhibition
RECRUITING45 Analytics
EARLY_PHASE1RECRUITING
Quadriceps Motor Unit Adaptation to Simulated Knee Injury
Muscle InhibitionUnlock trial analytics

Study Endpoints

Primary Endpoints

Motor Unit Recruitment (amplitude relative to recruitment threshold)
Baseline, 0, 30, and 60 minutes post-intervention

Measured via surface EMG decomposition

Motor Unit Recruitment (firing rate relative to recruitment threshold)
Baseline, 0, 30, and 60 minutes post-intervention

Measured via surface EMG decomposition

Secondary Endpoints

Quadriceps Inhibition (Hoffmann Reflex)
Baseline, 0 and 60 minutes post-intervention
Isometric Peak Torque (Quadriceps Strength)
Baseline and 60 minutes post-intervention
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Study Design & Arms

AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Effusion GroupEXPERIMENTAL60 mL sterile saline injected into knee
Deafferentation GroupACTIVE_COMPARATORLidocaine (single intra-articular dose)
Control GroupSHAM_COMPARATORSham procedure with fake needle

Interventions

NameTypeDescription
Joint Effusion via 60 mL Sterile SalineDEVICEInjection of sterile saline into the knee joint to simulate joint swelling and induce quadriceps inhibition.
Intra-articular LidocaineDRUGInjection of 7 mL lidocaine into the knee joint to simulate deafferentation by temporarily blocking sensory input.
Sham injectionOTHERSimulated knee injection using a stage needle without skin penetration, used to blind participants and serve as control.
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Eligibility Criteria

Age Range18 Years to 30 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Age 18-30 years 2. Physically active (Tegner ≥ 5) 3. No prior lower-limb surgery or major injury Exclusion Criteria: 1. Lower limb surgery or significant injury in past 2 years 2. Cardiopulmonary, neurological, or psychiatric disorders 3. Needle/electrical stimulation anxie...

Countries:United States
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Frequently asked questions about Intra-articular Lidocaine

What is Intra-articular Lidocaine used for?

Intra-articular Lidocaine is being studied for muscle inhibition, specifically in the context of simulated knee injury. It is an investigational small molecule in Phase 1 clinical development. The drug is being evaluated for its effects on quadriceps motor unit adaptation following knee injury simulation.

Who makes Intra-articular Lidocaine?

Intra-articular Lidocaine is being developed by Community Health Systems, Inc. (NYSE: CYH). The company is conducting a Phase 1 clinical trial to evaluate the drug for muscle inhibition related to knee injury.

What phase is Intra-articular Lidocaine in?

Intra-articular Lidocaine is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The ongoing trial is an early Phase 1 study that is currently recruiting participants.

What clinical trials is Intra-articular Lidocaine in?

Intra-articular Lidocaine is being studied in a single clinical trial, NCT06999057, titled 'Quadriceps Motor Unit Adaptation to Simulated Knee Injury.' This early Phase 1 study is recruiting 45 participants in the United States and is active but not yet completed.

Is Intra-articular Lidocaine the same as lidocaine?

Intra-articular Lidocaine is a formulation of lidocaine administered into the joint space. While lidocaine is a well-known local anesthetic, this specific intra-articular formulation is being investigated for a new purpose: treating muscle inhibition after knee injury. It is in early clinical development for this indication.