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AzTrials

Labor PainPhase 1NCT04221568

Intrathecal Analgesia for Normal Labour

A Phase 1 study testing Bupivacaine-fentanyl and levobupivacaine-fentanyl in people with Labor Pain, run by Assiut University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Primary outcome: Compare the duration of analgesia. Secondary outcome: analgesic potency of bupivacaine and fentanyl versus levobupivacaine and fentanyl. Read more about this study

Who is it for?
Ages 25 to 35 years, women onlyHealthy volunteers can take part
Conditions the study is for
Labor Pain
What is being tested?
Bupivacaine-fentanyl and levobupivacaine-fentanyl
How many people
70 participants
Where
No sites listed yet
Study dates
1 Mar 2020to 1 Mar 2021
Phase
Phase 1
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 25 to 35 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • singleton pregnancies
  • vertex presentation who will be in the active phase of labour with a cervical dilatation >4cm
  • normal fetal heart rate.

Who cannot join

  • 1-Parturients with systemic diseases 2-Suspected cesarian section which include, in order of frequency, labor dystocia, abnormal or indeterminate (formerly, nonreassuring) fetal heart rate tracing, fetal malpresentation, multiple gestation, and suspected fetal macrosomia.
  • 3 Fetus with known or suspected congenital abnormalities, and 4-Administration of parentral or oral analgesics before initiation of neuraxial analgesia will be excluded from the study.

Trial locations and contacts

No sites are listed yet.

About this study

Official title: The Comparison of Intrathecal Bupivacaine With Fentanyl and Levobupivacaine With Fentanyl for Labour Analgesia

Primary outcome: Compare the duration of analgesia. Secondary outcome: analgesic potency of bupivacaine and fentanyl versus levobupivacaine and fentanyl.

Read the detailed description

The pain of childbirth is the most severe pain any women can endure in their life time. Painful uterine contractions lead to maternal hyperventilation and increased catecholamine concentrations resulting im maternal and fetal hypoxemia.

Labour pain when unrelieved can have adverse effect on the course of labour as well as on the fetal wellbeing. An effective labour analgesia lead to better fetal and maternal outcome.

Although the gold standard in labour analgesia is utilization of epidural services which are widely used to provide pain-free labour in many parts of the world and and have the advantage of providing flexibility to meet the needs of each patient . Epidurals have long been associated with increased oxytocin use, increased fetal malposition, increased rates of instrumental and cesarian delivery, and longer labour .

The use of single-shot intrathecal low dose found to be effective . The advantages of this form of technique include the rapidity of onset and reliability, with minimal hemodynamic changes and motor block. Spinal block is cheaper as well as less technically challenging when compared to epidural and combined spinal epidural block. Intrathecal analgesia alone is useful when duration of labour can be reasonably estimated. Opioid combined with a small dose of local anesthetic provides rapid analgesia and dissipates when no longer needed.

Bupivacaine because of its least placental transfer, due to high protein binding and minimal motor block compared to sensory block in lower doses, has become the popular choice for labor analgesia. Addition of neuraxial lipid soluble opioids permitted reduction in the dose while maintaining effective analgesia and minimizing potential adverse effects on the progress of labor and lower extremity motor block .

Levobupivacaine is the S (-) enantiomer of racemic bupivacaine. Previous studies have shown that it exhibits a clinical profile similar to bupivacaine with the added advantage of less motor impairment .

Conditions
Labor Pain
Being tested
Bupivacaine-fentanyl, levobupivacaine-fentanyl
Medical subject headings
Labor Pain

What participants receive

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

  • Bupivacaine-fentanylDrug

    local anathetic\&analgesic drugs

  • levobupivacaine-fentanylDrug

    local anathetic\&analgesic drugs

What is being measured

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

  1. Compare the duration of analgesia of bupivacaine and fentanyl versus levobupivacaine and fentanyl.

    Defined as the time between the end of the spinal injection and the moment additional analgesia requested by parturients owing to the reappearance of labor pain was assessed.

    Measured: From2 to 8 hours. It is the time between the end of the spinal injection and the moment additional analgesia requested by parturients owing to the reappearance of labor pain was assessed by Visual Analog Scale for Pain (VAS Pain)

Secondary outcomes (1)
  1. Analgesic potency of bupivacaine and fentanyl versus levobupivacaine and fentanyl.

    Defined as the time between the end of the spinal injection and the moment additional analgesia requested by parturients owing to the reappearance of labor pain was assessed.

    Measured: From2-8 hours. It is the time between the end of the spinal injection and the moment additional analgesia requested by parturients owing to the reappearance of labor pain was assessed by Visual Analog Scale for Pain (VAS Pain)

Timeline

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

  1. First posted9 Jan 2020
  2. Study start1 Mar 2020 (estimated)
  3. Primary completion1 Mar 2021 (estimated)
  4. Study completion1 Mar 2021 (estimated)

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 1
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Model description
multiparous parturients at term pregnancy (American society of anathesiologist physical status grade II)
Masking
Single blind
Who is masked
Investigator
Enrolment
70 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04221568
Sponsor's protocol ID
Analgesia in normal labour
Status last verified
Jan 2020
First submitted
14 Oct 2019
Last updated
9 Jan 2020
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Brose D. [Pathology of the orofacial systems]. Zahntechnik (Berl). 1975 May;16(5):224-7. No abstract available. German.

    PubMed 1077683

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Bupivacaine-fentanyl and levobupivacaine-fentanyl in people with Labor Pain, run by Assiut University.

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 2 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: status not confirmed, as of the sponsor's last update on 9 Jan 2020. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

Results are not available in the source record.

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

Contact peter elesha (+201207674699, peter_hero14@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Compare the duration of analgesia of bupivacaine and fentanyl versus levobupivacaine and fentanyl. (time frame: From2 to 8 hours. It is the time between the end of the spinal injection and the moment additional analgesia requested by parturients owing to the reappearance of labor pain was assessed by Visual Analog Scale for Pain (VAS Pain)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04221568, which also lists 1 linked publication.

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 9 Jan 2020.

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