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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02973048
Other study ID # B076201627677
Secondary ID
Status Completed
Phase Phase 3
First received
Last updated
Start date March 12, 2018
Est. completion date November 8, 2018

Study information

Verified date July 2020
Source Centre Hospitalier Universitaire Saint Pierre
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Over the past 15 years, cesarean delivery is most commonly performed under spinal anesthesia using hyperbaric bupivacaine which provides an adequate sensory and motor block. Despite effective surgical anesthesia, bupivacaine is associated with long duration motor block and dose-dependent maternal hypotension potentially harmful for the fetus. Prilocaine with its new 2% hyperbaric formulation (HP), developed recently, showed rapid onset of action and faster regression of motor block compared to other local anesthetics without noteworthy side-effects when used intrathecally. The aim of this randomized, multicenter, powered clinical trial is to investigate whether HP may be an efficient alternative to hyperbaric bupivacaine for scheduled caesarean delivery under spinal anesthesia, with more rapid rehabilitation and less adverse effects. Our hypothesis is that hyperbaric prilocaine offers shorter motor block and more rapid rehabilitation than bupivacaine.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date November 8, 2018
Est. primary completion date November 8, 2018
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria :

- American Society of Anesthesiologists physical status (ASA) < III

- Age 18-40 year

- Body Weight <110 kg

- Height between 160 and 175 cm

- Gestational age>37 SA

- Elective cesarean delivery

- Singleton pregnancy

- Non complicated pregnancy

- Signed informed consent obtained prior to any study specific assessments and procedures

Exclusion Criteria:

- Twin pregnancy

- History of 2 cesarean section or more

- Diabetes and gestational diabetes

- Placenta praevia

- Congenital foetal abnormality

- Intrauterine growth retardation

- Patient in labour

- Membrane rupture

- Known allergy to local anaesthetics

- Standard contraindications to neuraxial block.

- Disagreement of the patient

- Neurological impairment

- Gestational low blood pressure

- Pre eclampsia and eclampsia

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Hyperbaric bupivacaine
The dose of 10 mg of hyperbaric bupivacaine will be administered to one of two groups intrathecally and the quality of sensory and motor block as well as side-effects will be observed at precise time points.
Hyperbaric prilocaine
The dose of 50 mg of hyperbaric prilocaine will be administered to one of two groups intrathecally and the quality of sensory and motor block as well as side-effects will be observed at precise time points.

Locations

Country Name City State
Belgium Clinique Ste-Anne/St-Remi Anderlecht
Belgium University Hospital Saint-Pierre, Université Libre de Bruxelles (ULB) Brussels Brussels Capital

Sponsors (1)

Lead Sponsor Collaborator
Centre Hospitalier Universitaire Saint Pierre

Country where clinical trial is conducted

Belgium, 

References & Publications (3)

Gautier P, De Kock M, Huberty L, Demir T, Izydorczic M, Vanderick B. Comparison of the effects of intrathecal ropivacaine, levobupivacaine, and bupivacaine for Caesarean section. Br J Anaesth. 2003 Nov;91(5):684-9. — View Citation

Guntz E, Kapessidou Y. Spinal prilocaine for same-day surgery: the importance of equipotent doses. Can J Anaesth. 2016 Aug;63(8):985-6. doi: 10.1007/s12630-016-0645-7. Epub 2016 Apr 4. — View Citation

Guntz E, Latrech B, Tsiberidis C, Gouwy J, Kapessidou Y. ED50 and ED90 of intrathecal hyperbaric 2% prilocaine in ambulatory knee arthroscopy. Can J Anaesth. 2014 Sep;61(9):801-7. doi: 10.1007/s12630-014-0189-7. Epub 2014 Jun 7. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Time to Regression of Motor Block Time to regression of motor block is the time between maximal blockade (score 1, as evaluated by the Modified Bromage scale), and no blockade (score 6). Degree of motor blockade is assessed before and 10, 15, 20 minutes after spinal anesthesia, then every 15 minutes until the end of surgery, and thereafter, every 30 minutes until complete regression of motor block until complete regression of motor block (up to 4 hours)
Secondary Time to Successful Anesthesia (Successful Sensory Block) Time between spinal injection and reached bilateral T4 sensory level. From spinal injection of the local anesthetic to bilateral T4 level (average 20 minutes)
Secondary Number of Participants Per Maximal Level of Sensory Block Attained After Spinal Anesthesia Level of Sensory block is assessed as loss of sensation to cold, and represents the dermatomal level under which anesthesia is effective. It is measured every 2 minutes after spinal anesthesia during 15 minutes, then every 5 minutes until the end of surgery, thereafter, once 30 minutes until total regression of sensory block (T12-S1). A dermatome is the area of skin that is supplied by a single spinal nerve - Dermatome levels : C5-C8 for Cervical levels and T1-T4 for Thoracic levels.
To perform cesarean section loss of cold sensation at a dermatome of at least T4 has to be obtained.
The results are expressed as the number of patients reaching each dermatomal level from T4 and above (see below) as maximal sensory level, this is a usual outcome used to evaluate the quality of anesthesia.
until complete release of sensory block (T12-S1) (average 4 hours)
Secondary Time to Resolution of Sensory Block Evaluation at every 2 minutes after spinal anesthesia during 15 minutes, then every 5 minutes until the end of surgery, and thereafter, every 30 minutes until total regression of sensory block (T12-S1). until complete release of sensory block (T12-S1) (average 4 hours)
Secondary Time to Motor Block Onset Time of installation of the motor block (time between spinal injection and maximum motor block of 1, as evaluated by the Modified Bromage scale). Degree of motor blockade is assessed before and 10, 15, 20 minutes after spinal anesthesia From spinal injection of the local anesthetic to bilateral T4 level and during surgery (average 1 hour)
Secondary Number of Patients With Hypotension and Use of Vasopressors Arterial blood pressure will be measured at every 1 minute during the first 15 minutes, then at every 2.5 minutes until the end of surgery, and at every 20 minutes in the Post Anesthesia Care Unit (PACU). A low blood pressure (hypotension) is defined as a systolic blood pressure lower than 20% or more than the basal blood pressure (Systolic blood pressure before spinal anesthesia) up to 2 hours after surgery
Secondary Number of Participants With Urinary Retention All parturients will be questioned and examined for urinary retention (yes or no) up to 4 hours after surgery
Secondary Time to First Walk Time for the patients to be able to walk in their room then in the hallway without any assistance for the first time. up to 24h after surgery
Secondary Maternal Satisfaction Assessed by Visual Analogic Scale (VASS) All patients will be asked to rate their satisfaction about anesthetic technique during surgery and in the arrival in the Post Anesthesia Care Unit (PACU). Satisfaction evaluated by Visual analog scale (0 cm= very unsatisfied and 10cm = very satisfied) up to 24 hours after surgery
Secondary Maternal Rehabilitation Assessed by Visual Analogic Scale (VASR) Maternal rehabilitation is evaluated at postoperative Day1, postoperative Day 2 and postoperative Day 3. Evaluation by Visual analog scale (0 cm= very poor and 10cm = excellent) up to 72 hours after surgery
Secondary Number of Participants With Adverse Events (Nausea, Vomiting, Pruritis, Headache) Evaluation from 15 minutes after spinal injection to the end of surgery, then every 4 hours for 24 hours, then once a day for 3 days (score 0=no symptom; 1=symptom with no necessary treatment; 2=symptom present and treated) up to 72 hours after surgery
Secondary Number of Participants With Transient Neurologic Symptoms (TNS) Evaluation of apparition of TNS at postoperative Day 1, postoperative Day 2, postoperative Day 3 and postoperative Day 15. TNS are defined as pain and/or dysesthesia occurred after complete release of sensory block at the gluteal level, at the thighs and at the legs. up to 15 Days after surgery
Secondary Pain as Assessed by Visual Analogue Scale Pain levels will be determined at incision, baby delivery, peritoneal and skin closure, every 5 minutes during surgery, and thereafter every 4 hours for 24 hours. Visual analog pain score (scale = 0 no pain; 10 = worst pain imaginable). Patient will receive additional analgesic treatment above VAS>3. up to 24 hours after surgery
Secondary Newborn Apgar Score Newborn Apgar score assessed at 1, 5, 10 minutes after baby extraction. The Apgar score is determined by evaluating the newborn baby on five simple criteria on a scale from 0 to 2, then summing up the five values thus obtained. The overall resulting score ranges from 0 to 10 ( 0-3 : severely depressed, 4-6 : Moderately depressed and 7-10 : Excellent condition).
The five criteria are summarized using words chosen to form an abbreviation (Appearance, Pulse, Grimace, Activity, Respiration).
up to 10 minutes after baby extraction
Secondary Newborn Methemoglobinemia (MetHb) Newborn Methemoglobinemia (MetHb) will be assessed at delivery by cordal blood sample, as a routine control in obstetrics, and expressed as a percentage of total hemoglobinemia.
Methemoglobinemia (MetHb) is a blood disorder in which an abnormal amount of methemoglobin (hemoglobin in the form metalloprotein) is produced. This specific type of of Hemoglobin carries oxygen through your blood but doesn't release it to the cells.
average 1 hour
Secondary Newborn Umbilical pH Newborn umbilical pH will be assessed at delivery by cordal blood sample, as a routine control, and expressed as standard value average 1 hour
Secondary Time of Surgery Time between incision and end of surgery average 1 hour
Secondary Time From Spinal Injection to Baby Delivery Time between spinal injection and baby delivery average 1 hour
Secondary Time From Baby Delivery to End of Surgery Time between baby delivery, and the end of surgery average 1 hour
Secondary Total Blood Loss Total blood loss (milliliters) during surgery average 1 hour
Secondary Obstetrician Satisfaction Satisfaction ranged between 1 (totally unsatisfied) to 4 (totally satisfied) assessed at the end of surgery average 1 hour
Secondary Midwife Satisfaction Satisfaction ranged between 1 (totally unsatisfied) to 4 (totally satisfied) assessed at postoperative Day 3 72 hours after surgery
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