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PainPhase 3NCT00848419

A Prospective Randomized Comparison of Fentanyl, Methadone and Morphine for Epidural Analgesia in an Experimental Pain Model

A Phase 3 study testing Epidural administration of bolus in people with Pain, run by Hadassah Medical Organization.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The aims of this study are to provide pharmacokinetic-pharmacodynamic data to quantify the analgesic and side effect profiles of epidural methadone, fentanyl and morphine. The investigators will compare the analgesic effect at three dermatomes to assess the rostral spread of drug, the investigators will assess plasma… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Pain
What is being tested?
Epidural administration of bolus
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
No sites listed yet
Study dates
Apr 2009to Jun 2019
Phase
Phase 3
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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients (men and women) scheduled for extracorporeal shock wave lithotrypsy (for nephrolithiasis) under regional anesthesia.

Who cannot join

  • Inability to understand consent form; poor communication Refusal to sign consent form Contraindication to regional anesthesia Chronic opioid administration ASA classification 3 or greater Age < 18 or > 70

About this study

The aims of this study are to provide pharmacokinetic-pharmacodynamic data to quantify the analgesic and side effect profiles of epidural methadone, fentanyl and morphine. The investigators will compare the analgesic effect at three dermatomes to assess the rostral spread of drug, the investigators will assess plasma levels to assess the systemic redistribution of drug and the investigators will assess surrogate markers of central opiate effects (nasal capnography and pupilometry). The investigators hypothesize that due to the long-duration of action of methadone, and its intermediate lipophilicity, that methadone will provide a predominantly segmental analgesia of long duration of action, with low rostral spread and low direct central depressant effects (including respiratory depression).

Conditions
Pain
Being tested
Epidural administration of bolus
Keywords
Epidural, Analgesia, Methadone, Morphine, Pharmacokinetic-pharmacodynamic, Experimental pain - analgesic response
Medical subject headings
Pain, Agnosia

What participants receive

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

  • Epidural administration of bolusDrug

Study groups in NCT00848419
Study groupRoleWhat they receive
MethadoneActive comparatorEpidural methadone bolus 4mg
Receives: Drug: Epidural administration of bolus
MorphineActive comparatorEpidural morphine 4mg bolus
Receives: Drug: Epidural administration of bolus
FentanylActive comparatorEpidural fentanyl 200 microgram bolus
Receives: Drug: Epidural administration of bolus
SalinePlacebo comparatorEpidural saline bolus
Receives: Drug: Epidural administration of bolus

What is being measured

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

  1. Change in heat pain tolerance from baseline (using QST Medoc)

    Measured: At intervals: 30, 60, 90, 120, 180, 240, 300, 360, 410 min following drug and 24 hours following drug.

Secondary outcomes (4)
  1. Change in electrical pain tolerance from baseline

    Measured: At same time intervals as primary outcome

  2. Plasma concentration of methadone, fentanyl, morphine (and metabolites)

    Measured: At each of the time intervals as for primary endpoint

  3. Pupilometry

    Measured: At each of the time intervals as primary endpoint

  4. Respiratory rate and arterial CO2 tension

    Measured: At each of the time intervals as primary endpoint

Timeline

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

  1. First posted20 Feb 2009 (estimated)
  2. Study startApr 2009
  3. Primary completionDec 2009 (estimated)
  4. Study completionJun 2019

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00848419
Sponsor's protocol ID
Exp pain 1-ginosar-HMO-CTIL
Status last verified
Feb 2009
First submitted
19 Feb 2009
Last updated
12 Sep 2019
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Epidural administration of bolus in people with Pain, run by Hadassah Medical Organization.

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 1 inclusion and 1 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 12 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

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

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Change in heat pain tolerance from baseline (using QST Medoc) (time frame: At intervals: 30, 60, 90, 120, 180, 240, 300, 360, 410 min following drug and 24 hours following drug.). 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 12 Sep 2019.

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