Effectiveness of remimazolam on preventing adverse reactions caused by carboprost tromethamine during cesarean section

ISRCTN ISRCTN47530284
DOI https://doi.org/10.1186/ISRCTN47530284
Submission date
17/09/2023
Registration date
16/11/2023
Last edited
14/11/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
This study aims to evaluate the effectiveness of intravenous administration of remimazolam in preventing adverse reactions triggered by carboprost tromethamine during cesarean section procedures performed under combined spinal and epidural anesthesia (CSEA), thereby improving sedative effects. This approach holds promising potential for widespread application.

Who can participate?
Parturients aged between 24-45 years old scheduled for cesarean sections at risk of postpartum hemorrhage at The third hospital of Baogang Group, China

What does the study involve?
The participants will be assigned via random number table method to either a study group or a control group, resulting in 100 cases in each. All parturients will receive CSEA during cesarean section, followed by administration of carboprost tromethamine (250μg) for preventing postpartum hemorrhage after childbirth. CSEA is performed with 1.8-2 mL of 0.5% bupivacaine and 7-10 mL of 2% lidocaine. The study group will be given remimazolam via intravenous infusion at a rate of 0.3 mg/kg/hr commencing one minute prior to CSEA and concluding with a final dosage adjustment 20 minutes preceding the end of surgery, while the control group will be given the same volume of saline within this time frame. Primary outcome measures were adverse reactions and sedative effects of the parturients.

What are the possible benefits and risks of participating?
Benefits and risks not provided at time of registration.

Where is the study run from?
The Third Hospital of the Baogang Group (China)

When is the study starting and how long is it expected to run for?
October 2022 to September 2023

Who is funding the study?
The Baotou Science and Technology Bureau (China)

Who is the main contact?
Dr Jianjun Fan, fanjianjun2065@163.com (China)

Contact information

Dr Jianjun Fan
Public, Scientific, Principal Investigator

Department of Anesthesiology
The Third Hospital of the Baogang Group
15 Qingnian Road
Kunqu District
Baotou City, Inner Mongolia
014010
China

Phone +86-0472-2166970
Email fanjianjun2065@163.com

Study information

Study designSingle-center single-blind randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeSafety
Participant information sheet No participant information sheet available
Scientific titleEffectiveness of remimazolam on preventing adverse reactions caused by carboprost tromethamine during cesarean section
Study objectivesIntravenous administration of remimazolam effectively prevents adverse reactions induced by carboprost tromethamine during cesarean section performed under CSEA, thereby improving sedative effects.
Ethics approval(s)

Approved 15/12/2022, Ethics Committee of The third hospital of the Baogang Group (Qingnian Road, Kunqu District, Baotou City, Inner Mongolia, 014010, China; +86-0472-2166970; bangongshi@cohf.cn), ref: 2022.02/22-28

Health condition(s) or problem(s) studiedCesarean section women at risk of postpartum hemorrhage
InterventionThe participants will be assigned via random number table method to either a study group or a control group. All parturients will receive combined spinal and epidural anesthesia (CSEA) during cesarean section, followed by administration of carboprost tromethamine (250μg) for preventing postpartum hemorrhage after childbirth. Combined spinal and epidural anesthesia will be performed with 1.8-2 mL of 0.5% bupivacaine and 7-10 mL of 2% lidocaine. The study group will be given remimazolam via intravenous infusion at a rate of 0.3 mg/kg/hr commencing one minute prior to CSEA and concluding with a final dosage adjustment 20 minutes preceding the end of surgery, while the control group will be given the same volume of saline within this time frame. Primary outcome measures were adverse reactions and sedative effects of the parturients.
Intervention typeProcedure/Surgery
Primary outcome measure1. Postpartum bleeding volume measured using patient records. The bleeding volume of parturients at 2 hours and 24 hours postpartum and the time to cessation of bleeding are recorded and compared between the two groups.
2. Sedation effect measured using the Ramsay Sedation Scale (RSS) to assess intraoperative sedation levels. The scale is as follows: 1 point: Anxious, restless; 2 points: Awake, calm, cooperative; 3 points: Drowsy, responsive to commands; 4 points: Light sleep, easily awakened; 5 points: Asleep, sluggish response to stimulation; 6 points: Deep sleep, no response to stimulation. Sedation levels were categorized as follows: 1 point indicated inadequate sedation, 2-4 points indicated moderate sedation, and 5-6 points indicated excessive sedation. Sedation efficacy (%) = (Sum of cases with 3-4 points) / Total cases × 100%.
3. Adverse reactions: Adverse reactions (nausea and vomiting, stomach pain, chest pain, palpitations, elevated blood pressure, headache) occurring between admission and the end of surgery. The severity of nausea and vomiting is graded as follows: Level 0: No nausea or vomiting; Grade 1: nausea but no vomiting; Grade 2: Nausea or vomiting 1-2 times within an hour; Level 3: Nausea or vomiting three or more times within an hour

Secondary outcome measuresSatisfaction score measured using a patient questionnaire of the satisfaction of the whole treatment process, which is divided into very satisfied, satisfied and dissatisfied, before discharge
Overall study start date01/10/2022
Completion date30/09/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit24 Years
Upper age limit45 Years
SexFemale
Target number of participants100
Total final enrolment100
Key inclusion criteria1. Aged 24-45 years old
2. Indication for cesarean section, planned elective cesarean section
3. American Society of Anesthesiologists (ASA) grade I-II
4. Presence of risk factors for uterine atony, such as scar pregnancy, multiple pregnancies, macrosomia, psychological stress, and making natural labor inappropriate.
Key exclusion criteria1. Genital tract anomalies
2. Coagulation disorders
3. Allergy to drugs and related solvents intended for use during surgery
4. Pre-existing conditions such as severe gastric ulcers, duodenal ulcers, reflux esophagitis, or other conditions that could lead to symptoms such as nausea, vomiting, chest discomfort, palpitations, abdominal pain, or diarrhea
Date of first enrolment01/10/2022
Date of final enrolment31/07/2023

Locations

Countries of recruitment

  • China

Study participating centre

The third hospital of Baogang Group
15, Qingnian Road,Kunqu District
Baotou City
014010
China

Sponsor information

Baotou Science and Technology Bureau (包头市科学技术局)
Government

No. 1 Kaiyuan Street
Jiuyuan District
Baotou City
014010
China

Phone +86-0472-5618492
Email btkjjjhc@163.com
Website http://kjj.baotou.gov.cn/

Funders

Funder type

Government

Baotou Science and Technology Bureau
Government organisation / Local government
Location
China

Results and Publications

Intention to publish date31/12/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryOther
Publication and dissemination planPlanned publication in a high-impact and peer-reviewed journal; The European Review for Medical and Pharmacological Sciences
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from the corresponding author Dr Jianjun Fan, fanjianjun2065@163.com (China)

Editorial Notes

14/11/2023: Study's existence confirmed by the Ethics Committee of The third hospital of the Baogang Group (China).