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AnalgesiaNCT00923494

Effectiveness of Ultrasound (US) Guided Supraclavicular Block

A study testing 20 ml of ropivacaine 0.5%, 30 ml of ropivacaine 0.5% and 40 ml of ropivacaine 0.5% in people with Analgesia and Pain, run by Baylor College of Medicine at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This research study is being done in order to find out if there is any difference in the effectiveness of ultrasound guided supraclavicular brachial plexus nerve block that can be achieved with 3 different amounts of ropivacaine 0.5% (20 ml, 30 ml, and 40 ml). Read more about this study

Who is it for?
Ages 18 to 64 years
Conditions the study is for
Analgesia, Pain
What is being tested?
20 ml of ropivacaine 0.5%, 30 ml of ropivacaine 0.5% and 40 ml of ropivacaine 0.5%
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
May 2009to Dec 2010
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patients between the ages of 18-64,
  • Patients who are ASA I-III, presenting for distal upper extremity surgery. Surgeries to be considered are ORIF of distal upper extremity fractures such as ORIF radius, ORIF ulna, ORIF of any bones in the wrist or hand, and distal upper extremity surgery involving bones or tendons for which postoperative pain is to be expected. No emergency surgeries will be considered.

Who cannot join

  • Emergency surgery,
  • Patient or surgeon refusal
  • Patients for which peripheral nerve block or study medications are contraindicated,
  • Patients on chronic analgesic therapy at home,
  • History of nerve injury, neuropathy, or known neurologic injury or illness, or inability to properly describe postoperative pain to investigators (language barrier, psychiatric disorder, dementia).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Ben Taub General Hospital

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: Effectiveness of Ultrasound Guided Supraclavicular Brachial Plexus Block With 20, 30, or 40 ml of Ropivacaine 0.5%

This research study is being done in order to find out if there is any difference in the effectiveness of ultrasound guided supraclavicular brachial plexus nerve block that can be achieved with 3 different amounts of ropivacaine 0.5% (20 ml, 30 ml, and 40 ml). The investigators want to show if you can have a successful nerve block with less amount of local anesthetic, thus potentially decreasing the risk of side effects.

Conditions
Analgesia, Pain
Being tested
20 ml of ropivacaine 0.5%, 30 ml of ropivacaine 0.5%, 40 ml of ropivacaine 0.5%
Keywords
Anesthesia
Medical subject headings
Agnosia, Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 20 ml of ropivacaine 0.5%Drug

    Patient will receive 20 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.

  • 30 ml of ropivacaine 0.5%Drug

    Patient will receive 30 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.

  • 40 ml of ropivacaine 0.5%Drug

    Patient will receive 40 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.

Study groups in NCT00923494
Study groupRoleWhat they receive
Group R20Active comparatorPatient will receive 20 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
Receives: Drug: 20 ml of ropivacaine 0.5%
Group R30Active comparatorPatient will receive 30 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
Receives: Drug: 30 ml of ropivacaine 0.5%
Group R40Active comparatorPatient will receive 40 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
Receives: Drug: 40 ml of ropivacaine 0.5%

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Onset of analgesia

    Measured: First 30 minutes

  2. Duration of analgesia

    Measured: 24 hours

Secondary outcomes (1)
  1. Total analgesic use

    Measured: First 24 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jun 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionDec 2010
  4. Study completionDec 2010

Why it stopped: Unable to enroll. Change in patient population.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00923494
Sponsor's protocol ID
H-24506
Status last verified
Jan 2017
First submitted
16 Jun 2009
Last updated
20 Jan 2017
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing 20 ml of ropivacaine 0.5%, 30 ml of ropivacaine 0.5% and 40 ml of ropivacaine 0.5% in people with Analgesia and Pain, run by Baylor College of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 20 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Onset of analgesia (time frame: First 30 minutes). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jan 2017; AzTrials last refreshed its copy on 7 Nov 2026.

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