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Postoperative PainPhase 3NCT02145975

Efficacy of Fentanyl to Reduce the Time of Severe Postoperative Pain Relief Compared to Morphine

A Phase 3 study testing Fentanyl and Morphine in people with Postoperative Pain, run by Universidad de Antioquia at 1 site in Colombia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Fentanyl is a potent opioid, it is theoretically 100 times more potent that morphine and in severe acute postoperative pain acts faster than its congener (morphine ) for pain relief . Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Postoperative Pain
What is being tested?
Fentanyl and Morphine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteColombia
Study dates
Jan 2014to May 2014
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients physical status I and IV, 18-65 years of age
  • Patients scheduled for surgery under general or regional anesthesia and fasting as defined in the fasting guidelines.
  • Patients whose accept and sign the informed consent of study.

Who cannot join

  • Patients with severe respiratory depression given by a monitoring state indicating hypoxemia (oxyhemoglobin saturation below 90 %).
  • Patients with immediate postoperative hemodynamic instability given by bradycardia , hypotension or hypoperfusion states observed by clinical paleness, active bleeding, altered sensorium, and altered alertness not explained by effects of anesthetics .
  • Neurological disorders such as metabolic basis psychiatric disorders, mental retardation, congenital neurodegenerative conditions, hypoxic or ischemic related to aging that do not allow adequate evaluation of the analog scale pain assessment.
  • Patients with a history of tolerance to opioids for chronic use, which is defined to a period of 2 weeks.
  • Patients who have undergone epidural analgesia protocols, neuraxial and peripheral nerve blocks.
  • Patients with any alteration in neurological status. History of psychiatric disorders. Patient with known hypersensitivity or allergic reactions to opioids. Women who are pregnant or suspected to be.

Trial locations and contacts

1 site in 1 country.

Colombia1 site
  • Antioquia University

    Medellín, Antioquia, 05001000

Other trials in Colombia

About this study

Official title: Efficacy of Fentanyl to Reduce the Time of Severe Postoperative Pain Relief Compared to Morphine: a Randomized Parallel-group, Double-blind Clinical Trial

Fentanyl is a potent opioid, it is theoretically 100 times more potent that morphine and in severe acute postoperative pain acts faster than its congener (morphine ) for pain relief . In the literature there is no study that corroborates this theoretical assumption and proposes to compare which has fewer adverse effects. This drug produces effects similar to those reported for morphine but less magnitude and has the advantage that during the postoperative period respiratory depression, antitussive effect , gastrointestinal discomfort and physical dependence are manifested in a significantly less degree.

Trying to solve the management of postoperative pain relief , our objective is to determine by controlled clinical trial of superiority if in adult patients undergoing surgery , fentanyl reduces faster qualification time of severe pain to mild pain in the postanesthesia care unit compared to morphine.

Read the detailed description

Postoperative pain is a severe problem of high incidence worldwide. According to a systematic review of the literature by Dolin et al , the incidence of moderate to severe postoperative pain in 41% of patients were found , and of these , only 23% experienced relief of the same ( 1). International Association for Study of Pain defines pain as unpleasant sensory or emotional experience associated with actual or potential damage , or described in terms of such damage ( 3). The postoperative pain is not only important for to cause suffering or unpleasant experience to the patient, but also by involving harmful effects to the body ( 4). Thus, the secondary stress to pain triggers the release of a series of hormonal mediators and activation of the sympathetic nervous system in conjunction with surgical trauma and previous comorbidities of the patient, that cause dysfunction of multiple organ systems , including the cardiovascular (5, 6) , GI (7-10) and respiratory ( 11,12 ), among others , increasing the incidence of postoperative complications such as myocardial ischemia , atelectasis ( 25-75 % after abdominal surgery) , respiratory infections (pneumonia 1-3 % after cardiac surgery ) , ileus , deep vein thrombosis and cognitive dysfunction. Thus increases the morbidity and patient recovery is delayed. (5) Similarly it has been observed that postoperative pain increases stay in the post anesthesia care unit , readmission for pain management, and delayed rehabilitation and reintegration of patients to activities of daily living , with the consequent increase in costs (5) . Considering the above arguments , it is obvious that timely intervention generates profit problem on multiple levels.

While the management of postoperative pain should include issues ranging from education to the patient prior to its analgesic plan to late recovery period in the post-anesthesia care area is crucial. This is because it has been shown that poor control of postoperative pain ( 3) in the early hours is associated with higher levels of pain at 48 hours . There is growing interest in the question of why , despite the availability of different drugs and technological advances that allow a better understanding of the pathophysiology of pain , has not been achieved a greater impact on the incidence of this problem ( 13).

Opioids are the most important drugs for postoperative pain control. In the post-anesthesia care area , especially when faced with a patient with severe or unbearable pain (14,15) , the analgesic opioid titration is the most effective strategy for controlling postoperative pain ( 16). The most studied and used today opioid is morphine, which by its pharmacokinetic characteristics provides an important balance between speed of onset and maintenance of analgesia ( 17). However, there are other alternatives for analgesic titration , such as fentanyl , which has favorable pharmacokinetics to have a faster response and thus may shorten the time needed to decrease pain from severe to mild ( 14,15). There are comparative studies between fixed-dose fentanyl and morphine in the emergency services and some preliminary tests in the recovery area (18,19). The most recent of analgesic titration trials comparing appropriate doses of opioids to patient weight which would improve its efficacy and safety ( 20). The tests that are known to have used fentanyl and morphine compared fixed-dose and 10 minute intervals .

Fentanyl is a potent opioid, it is theoretically 100 times more potent that morphine and in severe acute postoperative pain acts faster than its congener (morphine ) for pain relief . In the literature there is no study that corroborates this theoretical assumption and proposes to compare which has fewer adverse effects. This drug produces effects similar to those reported for morphine but less magnitude and has the advantage that during the postoperative period respiratory depression, antitussive effect , gastrointestinal discomfort and physical dependence are manifested in a significantly less degree.

Trying to solve the management of postoperative pain relief , our objective is to determine by controlled clinical trial of superiority if in adult patients undergoing surgery , fentanyl reduces faster qualification time of severe pain to mild pain in the postanesthesia care unit compared to morphine.

Being tested
Fentanyl, Morphine
Keywords
Severe postoperative pain, Morphine, Fentanyl, Time to titration of pain, Pain and PACU, Anesthesiology
Medical subject headings
Pain, Postoperative, Pain

What participants receive

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

  • FentanylDrug

    Also called Opioids

    The nurse will administer 1 ug per kg during 5 seconds when the patient complain of pain (visual analog scale, VAS, ≥7). Immediately with the onset of drug administration a timer started; every 5 minutes the researcher assess the EVA and the drug will be administered if VAS > 3, until the patient manifests as a lower pain VAS ≤ 3 (mild). The nurse in charge in the PACU will manage the drug and will take 100 ug of fentanyl which is diluted in 10 mL of normal saline leaving a 10μg per ml concentration, are not labeled and for the physical and chemical characteristics of both drugs (colorless) risks of unblinded is minimized.

  • MorphineDrug

    Also called Opioids

    The nurse will administer 0,1 mg per kg during 5 seconds when the patient complain of pain (visual analog scale, VAS, ≥7). Immediately with the onset of drug administration a timer started; every 5 minutes the researcher assess the EVA and the drug will be administered if VAS > 3, until the patient manifests as a lower pain VAS ≤ 3 (mild). The nurse in charge in the PACU will manage the drug and will take 10 mg of morphine which is diluted in 10 mL of normal saline leaving a 1 mg per ml concentration, are not labeled and for the physical and chemical characteristics of both drugs (colorless) risks of unblinded is minimized.

Study groups in NCT02145975
Study groupRoleWhat they receive
FentanylExperimentalProcedure: Fentanyl for rescue of acute postoperative pain in the postanesthesia care unit Intervention: The nurse will administer 1 ug per kg during 5 seconds when the patient complain of pain (visual analog scale, VAS, ≥7). Immediately with the onset of drug administration a timer started; every 5 minutes the researcher assess the EVA and the drug will be administered if VAS > 3, until the patient manifests as a lower pain VAS ≤ 3 (mild). The nurse in charge in the PACU will manage the drug and will take 100 ug of fentanyl which is diluted in 10 mL of normal saline leaving a 10μg per ml concentration, are not labeled and for the physical and chemical characteristics of both drugs (colorless) risks of unblinded is minimized.
Receives: Drug: Fentanyl
MorphineActive comparatorProcedure: Morphine for rescue of acute postoperative pain in the postanesthesia care unit Intervention: The nurse will administer 0,1 mg per kg during 5 seconds when the patient complain of pain (visual analog scale, VAS, ≥7). Immediately with the onset of drug administration a timer started; every 5 minutes the researcher assess the EVA and the drug will be administered if VAS > 3, until the patient manifests as a lower pain VAS ≤ 3 (mild). The nurse in charge in the PACU will manage the drug and will take 10 mg of morphine which is diluted in 10 mL of normal saline leaving a 1 mg per ml concentration, are not labeled and for the physical and chemical characteristics of both drugs (colorless) risks of unblinded is minimized.
Receives: Drug: Morphine

What is being measured

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

  1. Time in minutes of titration of fentanyl and morphine in reducing severe postoperative pain to mild pain

    Time in minutes of titration of fentanyl and morphine in reducing postoperative pain severe to mild pain with visual analog scale (≤ 3).

    Measured: The outcome will be measured from the patient presents severe pain at the PACU until the time that presents mild pain and he does not need more rescue bolus assessed up to 4 hours

Secondary outcomes (4)
  1. Stay time of patients in the postanesthetic recovery unit in hours.

    Stay time of patients in the postanesthetic recovery unit in hours.

    Measured: The outcomes will be measured from the patient arrives at the PACU until he is discharged or transferred to the hospital room assessed up to 4 hours.

  2. Satisfaction with the analgesic management

    Satisfaction with the analgesic management received by the Likert scale in both groups at the time and 24 hours.

    Measured: This outcome will be measured in the first hour at the PACU and postoperative 24 hours

  3. Cumulative dosis

    Cumulative dose of fentanyl vs morphine required for relief of pain in both groups.

    Measured: The outcome will be measured from the patient experiences severe pain at the PACU and is given the first bolus rescue analgesic until is given last bolus rescue analgesic, assessed up to 4 hours

  4. Saturation of oxygen and arterial pressure

    O2 saturation and MAP in both groups every 5 minutes during the titration period.

    Measured: The outcomes will be measured from the patient arrives at the PACU until he is discharged or transferred to the hospital room, assessed up to 4 hours.

Timeline

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

  1. First posted23 May 2014 (estimated)
  2. Study startJan 2014
  3. Primary completionApr 2014
  4. Study completionMay 2014

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
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02145975
Sponsor's protocol ID
UDEAFEN001
Status last verified
May 2014
First submitted
18 May 2014
Last updated
23 May 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Fentanyl and Morphine in people with Postoperative Pain, run by Universidad de Antioquia at 1 site in Colombia.

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 3 inclusion and 6 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: finished, as of the sponsor's last update on 23 May 2014. 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 Colombia. 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.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Time in minutes of titration of fentanyl and morphine in reducing severe postoperative pain to mild pain (time frame: The outcome will be measured from the patient presents severe pain at the PACU until the time that presents mild pain and he does not need more rescue bolus assessed up to 4 hours). 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 23 May 2014.

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