Collection of urine samples from women trying to conceive

Biobank Cycle Collection Study From Women Trying to Conceive

SPD Development Company Limited · NCT05642637

This study is collecting daily urine samples from women trying to get pregnant to learn more about fertility and help with future research.

Quick facts

Study typeObservational
Enrollment1500 (estimated)
Ages18 Years and up
SexFemale
SponsorSPD Development Company Limited (industry)
Locations1 site (Bedford, Bedfordshire)
Trial IDNCT05642637 on ClinicalTrials.gov

What this trial studies

This observational study aims to collect daily urine samples from women who are actively trying to conceive to support the SPD biobank. Participants will use a Clearblue Ovulation product to identify their most fertile days and will document their menstrual cycles and pregnancy test results over a period of up to three cycles. The collected urine samples will be analyzed for reproductive hormones and stored for future research and product development. The study seeks to gather valuable data on fertility and conception.

Who should consider this trial

Good fit: Ideal candidates are females aged 18 and over who are actively trying to conceive and meet specific eligibility criteria.

Not a fit: Patients who have been trying to conceive for an extended period or have certain medical conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of fertility and improve resources for women trying to conceive.

How similar studies have performed: While this approach is observational and may not have been extensively tested in this exact format, similar studies have successfully gathered fertility-related data.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Females aged 18 and over actively trying to conceive
* At least 2 regular consecutive cycles since last pregnancy/miscarriage/ stopping breastfeeding or contraception
* Willing to disclose their pregnancy status and provide urine samples.
* Willing to give informed consent and comply with the study procedures

Exclusion Criteria:

* Trying to conceive for \>6 months (under 35 years) or \> 3 months (35 years and over)
* Has a diagnosis of Polycystic Ovary Syndrome (PCOS)
* Taking medication or has known condition which means they should not get pregnant.
* Currently pregnant or breastfeeding
* Using any treatment which may affect the menstrual cycle (e.g. contraceptive pill)
* Using or has previously used infertility medications or hormone replacement medications containing LH or hCG \\ (e.g. Pregnyl®)
* Using or undergoing any other medical treatment for fertility such as ovulation drugs, artificial insemination and assisted fertility such as IVF or ICSI
* Peri-or post-menopausal, e.g. experiencing symptoms: irregular menstrual periods, hot flushes, night sweats, sleep disturbances and/or moods swings
* Abnormal liver or kidney function
* Taking antibiotics containing tetracycline.
* Participated in this study within the last 6 months

Where this trial is running

Bedford, Bedfordshire

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Pregnancy, Fertility, Trying to Conceive

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.