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RecruitingNCT06863337Updated Dec 23, 2025

Glucose Pattern in Infertile Women Receiving Assisted Reproduction Using Continuous Glucose Monitoring

An interventional study of CGM in Infertility Female, sponsored by Shanghai 6th People's Hospital. Recruiting at 1 site in China. Open to female participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-12-23.

Sponsored by Shanghai 6th People's Hospital · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Jun 2026, 3 months ago, but the record still lists the study as recruiting.
  • Started Mar 2025; still recruiting 1 year 6 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Not applicable
Ages
18 Years to 40 Years
Sex
Female
01

Study summary

No studies have been seen on glucose variation during medication for assisted reproduction. The aim of this study is to continuously observe glucose variation during assisted reproduction treatment using continuous glucose monitoring (CGM), and to further explore whether glucose variation will affect the outcomes related to assisted reproduction.

Read the detailed description

Infertility is a growing global health concern and affects approximately 20% of couples of reproductive age. As a result, the use of assisted reproductive technologies (ART) is becoming more prevalent. This study could serve as a basis for the interpretation of glucose levels with respect to these people undergoing ART regimen. Moreover, the success rate of ART still needs to be further improved. Key challenges include optimizing the hormonal components of ART regimens and determining the ideal treatment duration. This study might provide insights into the potential benefits of monitoring glucose levels at specific points during ART cycles (which is not usually performed in routine practice) and help clinicians tailor ART regimen to minimize glucose variation, ultimately improving clinical pregnancy and live birth rates. Additionally, the findings might support integrating CGM into the clinical practice of ART, enhancing individualized patient care.

02

Conditions studied

  • Infertility Female

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03

In context

Infertility, Female

540 studies on the registry are indexed under Infertility, Female; 138 are open to participants now.

This study's planned enrollment of 100 is close to the median of 100 across 371 interventional studies indexed under Infertility, Female.

Browse Infertility, Female studies →

Lead sponsor

Shanghai 6th People's Hospital is the lead sponsor of 69 studies on the registry; 40 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  1. Informed consent and voluntary participation in this study;
  2. Age ≥ 18 years and ≤40 years old;
  3. Infertile patients who will undergo their first or second cycle of in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) at the study center;
  4. The chosen ovulation promotion regimens is the GnRH antagonist regimen/progesterone-promoting ovulation under hyperprogesterone state (PPOS) regimen.

Exclusion criteria

Exclusion Criteria:

  1. Recent infections (excluding viral infections of the reproductive system such as HPV);
  2. Recent glucocorticoid treatment or chemotherapy;
  3. Clinical conditions affecting the outcome of assisted reproduction, including repeated implantation failure, recurrent spontaneous abortion, history of unilateral oophorectomy, uterine malformations, and parental karyotype abnormalities;
  4. Participants were unable to tolerate tape adhesive around sensor placement area, or with medically documented allergy towards the adhesive (glue) of plasters, or with serious skin diseases (e.g. psoriasis vulgaris, bacterial skin diseases) around sensor placement area.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    wearing continuous glucose monitorings

    Patients will wear two FreeStyle Libre Pro Flash CGM (Abbott Diabetes Care, Alameda, CA, USA) to ensure continuous tracking of blood glucose levels at key time points throughout the ovarian stimulation.

    Device: CGM

Interventions

  • DeviceCGM

    Each patient will participate in the group only once and wear two FreeStyle Libre Pro Flash CGM (Abbott Diabetes Care, Alameda, CA, USA), which record glucose readings for up to 14 days. Following the initial consultation and before initiating the ovulation induction protocol, the first CGM sensor will be placed to collect baseline data. Upon entering the ovulation induction cycle, patients will return to the hospital on the 2nd or 3rd day of menstruation, at which point the first CGM sensor will be removed, and the second sensor will be applied. This second sensor will be removed after 14 days. In summary, this protocol ensures continuous tracking of blood glucose levels at key time points throughout the ovarian stimulation.

06

What researchers measure

Primary outcomes

  1. Mean sensor glucose (MSG)

    Mean of daily continuous 24-h blood glucose

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

Secondary outcomes

  1. time in tight range(3.9~7.8mmol/L, %)

    Percentage of time within glucose level of 3.9-7.8 mmol/L (70-140 mg/dL) measured by CGM

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  2. Time below range (<3.9mmol/L, %)

    Percentage of time below glucose level of 3.9 mmol/L (70 mg/dL) measured by CGM.

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  3. Time above range (>7.8mmol/L, %)

    Percentage of time above glucose level of 7.8 mmol/L (140 mg/dL) measured by CGM

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  4. Coefficient of variation (CV)

    Standard deviation divided by mean glucose level measured by CGM

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  5. Standard deviation (SD)

    Standard deviation of blood glucose measurements during CGM

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

Other outcomes

  1. Number of oocytes retrieved

    The number of oocytes obtained under ultrasound guidance

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  2. Oocyte retrieval rate

    Oocyte Retrieval Rate = Number of Oocytes Retrieved / Number of Follicles

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  3. Number of MII oocytes

    The number of metaphase II oocytes that have nuclear maturity at the time of injection

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  4. Rate of MII oocytes

    the proportion of oocytes that have nuclear maturity at the time of injection

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  5. Rate of high-quality embryos

    the proportion of Day 2 and Day 3 embryos with high score or grade

    Time frame: Through study completion (during assisted reproductive treatment period,about 2 months)

  6. Biochemical pregnancy rate

    The proportion of pregnancies confirmed by the detection of hCG in serum or urine, but without ultrasound confirmation of a gestational sac or fetal heartbeat.

    Time frame: Through study completion (during assisted reproductive treatment period,about 6 months)

  7. Clinical pregnancy rate

    The proportion of pregnancies confirmed by ultrasonographic visualization of one or more gestational sacs or definitive clinical signs of pregnancy

    Time frame: Through study completion (during assisted reproductive treatment period,about 6 months)

  8. Miscarriage rate

    The proportion of pregnancies that end spontaneously before 28 weeks of gestation after confirmation of clinical pregnancy

    Time frame: Through study completion, about 1 year

  9. Live Birth Rate

    The proportion of successful deliveries resulting in a live-born infant.

    Time frame: Through study completion, 18 months

07

Study locations

1 of 1 sites recruiting
  • Shanghai Sixth People's Hospital
    Shanghai, Shanghai Municipality 200233, China
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 23, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06863337
Lead sponsor
Shanghai 6th People's Hospital
Responsible party
Jian Zhou (Principal Investigator, Professor, Chief Physician, Deputy Director, Shanghai 6th People's Hospital) — Principal investigator
First posted
Mar 7, 2025
Start date
Mar 26, 2025
Primary completion
Jun 30, 2026 (estimated)
Completion
Apr 30, 2027 (estimated)
Last update
Dec 23, 2025

Study contacts

Jian Zhou, Dr.
Contact
zhoujian@sjtu.edu.cn
+86 021 24056515

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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