ISRCTN ISRCTN13604391
DOI https://doi.org/10.1186/ISRCTN13604391
Secondary identifying numbers MREC ID NO: 202178-10349
Submission date
03/09/2021
Registration date
06/09/2021
Last edited
06/09/2021
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
In vitro fertilization (IVF) is one of the treatments available for women unable to conceive. It is a four-stage procedure involving ovarian stimulation, oocyte (egg) retrieval, fertilization, and embryo transfer. Transvaginal ultrasound-guided oocyte retrieval is the gold standard technique for egg retrieval, and it may be painful. The pain experienced is caused by the passage of the needle through the vaginal wall and by mechanical stimulation of the ovary.
The procedures are generally short in duration and there is a low level of pain involved. The optimal anesthetic technique during oocyte retrieval should be safe, effective, have few side effects, have a short recovery time, and be nontoxic to the eggs that are being retrieved.
Various types of pain relief for the retrieval procedure have been studied, including conscious sedation, local anesthetics, epidural spinal and general anesthesia, patient-controlled analgesia and acupuncture. Conscious sedation refers to the use of one or a combination of drugs to produce a state of relaxation and pain relief during a medical procedure.
Midazolam is the benzodiazepine of choice in endoscopic procedures owing to its faster onset of action and shorter duration of action than diazepam. Fentanyl is preferred to pethidine because the former is associated with more rapid onset and clearance with less nausea. Combining midazolam with opioids increases the risk of hypoxemia and apnea. Furthermore, adding propofol may cause cardiorespiratory depression. Sedation alone may be sufficient for this procedure as the procedure is done in a short interval and involves low-level procedure-related discomfort and residual discomfort that dissipates very quickly. In addition to that as this procedure is performed as an outpatient, the physician will be more assured of the wellbeing of the patient on discharge and can ensure that the patient’s safety is optimal. The aim of this study is to compare methods of conscious sedation during transvaginal ultrasound-guided oocyte retrieval.

Who can participate?
Patients aged 18 to 45 years old undergoing egg retrieval

What does the study involve?
Participants will be randomly allocated into two groups. The study group will receive midazolam 15 minutes before the procedure and the control group will receive fentanyl combined with midazolam 15 min before the procedure. The surgeon who is performing the procedure will rate the adequacy of the pain relief.

What are the possible benefits and risks of participating?
This procedure is performed as an outpatient procedure, the physician will be more assured about the wellbeing of the patient on discharge after the procedure and patient safety may be improved by reducing the use of opioids. Breakthrough pain perceived in the midazolam only group will be treated using Dynastat.

Where is the study run from?
University Malaya Medical Centre (UMMC) (Malaysia)

When is the study starting and how long is it expected to run for?
February 2021 to May 2023

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
1. Dr Suntharram Krishnasamy, dr.suntharram@hotmail.com
2. Associate Professor Nuguelis Razali, nuguelis@ummc.edu.my

Contact information

Dr Suntharram Krishnasamy
Scientific

University Medical Malaya Centre
Jalan Profesor DiRaja Ungku Aziz
Kuala Lumpur
59100
Malaysia

Phone +60 (0)379494422
Email k.suntharram@ummc.edu.my
Prof Nuguelis Razali
Scientific

University Medical Malaya Centre
Jalan Profesor DiRaja Ungku Aziz
Kuala Lumpur
59100
Malaysia

Phone +60 (0)379494422
Email nuguelis@ummc.edu.my

Study information

Study designProspective double-blinded randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet 40363_PIS_V1_16Aug21.docx
Scientific titleComparing method of conscious sedation during transvaginal ultrasound-guided oocyte retrieval
Study acronymMIFORE
Study objectivesMidazolam alone is non-inferior compared to the combination of midazolam and fentanyl in women undergoing transvaginal oocyte retrieval in vitro fertilisation treatment.
Ethics approval(s)Approved 29/08/2021, Medical Research Ethics Committee (formerly known as Medical Ethics Committee), University of Malaya Medical Centre (UMMC-MREC Secretariat Office, Level 2, Kompleks Pendidikan Sains Kejururawatan, University Malaya Medical Centre, Lembah Pantai 59100, Kuala Lumpur, Malaysia; +60 (0)3 79498473; ummc-mrec@ummc.edu.my), ref: 202178-10349
Health condition(s) or problem(s) studiedConscious sedation for women undergoing in vitro fertilisation during oocyte retrieval
InterventionOvarian stimulation and oocyte retrieval will be performed according to the standard protocol and based on routine clinical care of the unit.

Both arms of the study will be injected with local anaesthesia (10 ml lignocaine) in the paracervical area lateral and slightly above the reflection of the vaginal mucosa to the cervix. Prior to injection, aspiration will be done to avoid injection of local anaesthesia intravenously.

Randomization will be generated by a random sequence generator, provided by random.org to avoid bias, and labelled on an opaque envelope, which will be taken out from a designated box upon recruitment of the patient, which will determine which arm the patient belongs to.

The study group (Group M) will receive IV midazolam 0.1/mg/kg 15 minutes before the procedure and the control group (Group F) will receive an IV bolus of fentanyl 50 mcg combined with IV midazolam 0.1 mg/kg 15 min prior to the procedure. The medications will be pre-labelled and will be administered by the medical officer in charge of the reproductive unit. The surgeon who is performing the procedure will be blinded and will rate the adequacy of the analgesia. If the patient perceives pain during the intervention, the patient will be given IV Dynastat 40 mg stat dose as per breakthrough protocol.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Midazolam, fentanyl, lignocaine, Dynastat (parecoxib sodium)
Primary outcome measurePain measured using the Visual Analogue Scale (0 - 10) at 15 minutes from awakening
Secondary outcome measuresMeasured using a questionnaire post-procedure:
1. Nausea Yes/No
2. Vomiting Yes/No
3. Dizziness Yes/No
4. Patient satisfaction with the oocyte retrieval procedure measured using the Visual Numerating Rating Scale (0-10)
Overall study start date28/02/2021
Completion date31/05/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target number of participants120
Key inclusion criteriaAll patients undergoing oocyte retrieval between age 18 to 45 years old
Key exclusion criteria1. Not consented
2. Use of any other kind of analgesia before recruitment to the study
3. Previous history of hypersensitivity to midazolam/fentanyl/dynastat
Date of first enrolment13/09/2021
Date of final enrolment30/09/2022

Locations

Countries of recruitment

  • Malaysia

Study participating centre

University of Malaya Medical Centre
Lembah Pantai
Kuala Lumpur
59100
Malaysia

Sponsor information

University of Malaya
University/education

Obstetrics and Gynaecology Department
Jalan Profesor DiRaja Ungku Aziz
Kuala Lumpur
50630
Malaysia

Phone +60 (0)3 79492049
Email grow@ummc.edu.my
Website https://www.um.edu.my/
ROR logo "ROR" https://ror.org/00rzspn62

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date31/12/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from the Department Obstetrics & Gynecology, University of Malaya (grow@ummc.edu.my).

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 1 16/08/2021 06/09/2021 No Yes
Protocol file 06/09/2021 No No

Additional files

40363_PIS_V1_16Aug21.docx
40363_PROTOCOL.docx

Editorial Notes

06/09/2021: Trial's existence confirmed by the Medical Research Ethics Committee (formerly known as Medical Ethics Committee), University of Malaya Medical Centre.