Using a needle-free device for numbing skin during paracentesis in liver cirrhosis patients

Use of the J-Tip Needle-Free Injection System With 1% Lidocaine to Reduce Paracentesis-Related Discomfort

NA · Northwestern University · NCT06996379

This study is testing a needle-free device to see if it can make the skin numbing process more comfortable for adults with liver cirrhosis who need a procedure to remove fluid from their abdomen.

Quick facts

PhaseNA
Study typeInterventional
Enrollment110 (estimated)
Ages18 Years and up
SexAll
SponsorNorthwestern University (other)
Drugs / interventionschemotherapy
Locations1 site (Chicago, Illinois)
Trial IDNCT06996379 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the comfort level of adult patients with liver cirrhosis and ascites during abdominal paracentesis when using a needle-less device (J-Tip) for numbing the skin, compared to the traditional needle method. Participants will be randomly assigned to receive either the J-Tip or standard needle-based local anesthetic before the procedure. The study aims to assess pain levels during the administration of local anesthetics and the paracentesis itself, as well as any procedure-related anxiety. A follow-up survey will be conducted two days post-procedure to gather additional feedback on patient experiences.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 years old with cirrhosis and ascites requiring bedside paracentesis.

Not a fit: Patients who have received chemotherapy or have contraindications to paracentesis will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce pain and anxiety for patients undergoing paracentesis.

How similar studies have performed: While the use of needle-free devices is gaining interest, this specific application in paracentesis has not been widely tested, making it a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- Adult (age \> 18 years) patients in the emergency department or admitted to the general medical service at Northwestern Memorial Hospital who:

1. Have cirrhosis and ascites
2. Require diagnostic and/or therapeutic paracentesis as determined by their primary physician
3. Have capacity as determined by their ED or inpatient provider to consent for the procedure

c. Speak English as a preferred language

Exclusion Criteria:

* Have ever received chemotherapy, as this is a contra-indication to J-Tip use
* Lack capacity to consent for the procedure and/or capacity to rate their pain using the numeric pain rating scale
* Have a contraindication to bedside paracentesis, including:

  1. Procedure deemed unsafe due to insufficient ascites/suboptimal location of ascites as evaluated by ultrasound
  2. Cellulitis overlying the site of aspiration
  3. Pregnancy
* Do not speak English as a preferred language
* Are prisoners

Where this trial is running

Chicago, Illinois

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Evaluate Patient Comfort Level During Paracentesis by Numbing Skin With a Needle-less Device, Instead of Using a Needle to Numb the Skin, J-Tip, needle-less device, needle-free device, paracentesis, comfort, numbing, level of comfort

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.