ISRCTN ISRCTN39930338
DOI https://doi.org/10.1186/ISRCTN39930338
Sponsor University Malaya Medical Centre
Funder Department of Medicine, University of Malaya
Submission date
23/04/2026
Registration date
29/04/2026
Last edited
27/04/2026
Recruitment status
Not yet recruiting
Overall study status
Ongoing
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
Poor sleep during IVF may impair ovarian response. This study aims to test whether simple, low‑cost sleep aids (eye mask + earplugs) used nightly during controlled ovarian stimulation improve the number of mature oocytes (eggs) at oocyte pick‑up, compared with a sleep‑hygiene leaflet.

Who can participate?
Adults aged 21–42 years with poor sleep (PSQI > 5) undergoing IVF.

What does the study involve?
Participants will be randomized 1:1 to intervention or leaflet. All will wear a wrist actigraphy device to measure sleep objectively and complete short questionnaires. Routine IVF care is unchanged. Primary outcome is oocyte count; secondary outcomes evaluate follicular development, ovarian responsiveness, and successful pregnancy and actigraphy‑derived sleep parameters.

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

Where is the study run from?
Obstetric and Gynaecological Department, University Malaya Medical Centre, Malaysia.

When is the study starting and how long is it expected to run for?
May 2026 to May 2027.

Who is funding the study?
1. Investigator initiated and funded
2. University of Malaya Medical Center, Malaysia

Who is the main contact?
Dr Nurul Hafiza MD Khairi, hafizakhairi@gmail.com, ummc@ummc.edu.my.

Contact information

Dr Nurul Hafiza MD Khairi
Principal investigator, Scientific, Public

Obstetric and Gynaecological Department
University Malaya Medical Centre
Lembah Pantai
Petaling Jaya
59100
Malaysia

Phone +60 03-7949 4422
Email ummc@ummc.edu.my

Study information

Primary study designInterventional
AllocationRandomized controlled trial
MaskingBlinded (masking used)
ControlActive
AssignmentParallel
PurposeSupportive care
Participant information sheet 49417_PIS_v1_18Nov2025.pdf
Scientific titleEffectiveness of eye mask and earplugs versus sleep hygiene leaflet on sleep quality and IVF outcomes among women undergoing in vitro fertilisation: a randomised controlled trial
Study objectives • Primary: To determine whether eye‑mask and earplugs during COS increase the number of MII oocytes at OPU compared to a sleep‑hygiene leaflet.
• Secondary: To compare FORT and FOI between arms.
• Secondary: To compare clinical pregnancy rate between arms.
• Secondary: To compare sleep quality (PSQI) and actigraphy metrics (TST, SE, WASO) between arms.
Ethics approval(s)

Approved 09/04/2026, Medical Research Ethics Committee (MREC), University of Malaya Medical Centre (Lembah Pantai, kuala lumpur, 59100, Malaysia; +60 03-79493209/2251; mrec@ummc.edu.my), ref: 20251118-15900

Health condition(s) or problem(s) studiedSleep quality
InterventionMethodology: Randomised controlled trial

Human subjects: Yes — Patients in UMMC; target n ≈ 170

Sample size justification:
Negative binomial regression for MII oocyte; assumption difference of 2 oocytes between intervention group and control group is significance, 90% power for RR≈1.25–1.30 at α=0.05; 10–20% attrition; target ≈170 participants.

Vulnerable groups: No

This is a single-blinded (assessor) study with two arms - intervention (eye mask and ear plug) versus control ( sleep hygiene leaflet).
The intervention group will be given an eye mask and earplugs (EMEP) for 1 week during their IVF stimulation period. The control group will be given a sleep hygiene leaflet during the same period. Then, both arms will undergo oocyte pick-up, when the number of MII oocytes will be compared between the two groups. Randomization was allocated by using random.org with sealed envelopes.
Intervention typeBehavioural
Primary outcome measure(s)
  1. The number of metaphase II oocytes (MII) measured using data collected from medical notes at ovum pick-up (OPU)
Key secondary outcome measure(s)
Completion date30/06/2027

Eligibility

Participant type(s)
Age groupAdult
Lower age limit21 Years
Upper age limit42 Years
SexFemale
Target sample size at registration180
Key inclusion criteria1. Women 21–42 years undergoing IVF at UMMC
2. PSQI > 5 prior to COS
3. BMI < 35 kg/m²
4. Able to consent, wear actigraphy, and complete questionnaires
Key exclusion criteria1. Known obstructive sleep apnea
2. Current shift‑work employment
3. Use of hypnotic/sedative medications during COS
4. Ovarian endometrioma requiring surgical management during cycle
Date of first enrolment04/05/2026
Date of final enrolment30/04/2027

Locations

Countries of recruitment

  • Malaysia

Study participating centres

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Other files version 1 18/11/2025 24/04/2026 No No
Participant information sheet version 1 18/11/2025 24/04/2026 No Yes
Protocol file version 2 29/01/2026 24/04/2026 No No

Additional files

49417_Protocol_v2_29Jan2026.pdf
Protocol file
49417_PIS_v1_18Nov2025.pdf
Participant information sheet
49417_Consent Form_v1_18Nov2025.pdf
Other files

Editorial Notes

24/04/2026: Study’s existence confirmed by the Medical Research Ethics Committee (MREC), University of Malaya Medical Centre, Malaysia.