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PregnancyNCT02535260

Clearblue Advanced Fertility Monitor Consumer Three Cycle at Home Study

An observational study of Pregnancy, run by SPD Development Company Limited at 1 site in United Kingdom.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This study will assess the use of the new Clearblue Advanced Fertility Monitor in a home setting for three menstrual cycles or until pregnancy is achieved (whichever comes first) by female volunteers seeking to get pregnant. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy
How many people
0 participants
Where
1 siteUnited Kingdom
Study dates
Start not givento 11 Apr 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: women wishing to become pregnant

Who may be able to join

  • Female
  • Aged 18 - 45 years
  • Willing to provide written informed consent to participate in the study and comply to the investigational procedures
  • Naive to similar marketed products including current Clearblue Fertility Monitor and Persona
  • Two natural cycles immediately prior to entering the study, each lasting between 21 and 42 days
  • Seeking to become pregnant

Who cannot join

  • Employees of SPD, Proctor \& Gamble or Alere
  • Have a condition that is known to be contra-indicated in pregnancy
  • Usually have menstrual cycles which are shorter than 21 days or longer than 42 days
  • Trying to conceive for12 months (for volunteers under 35) or trying to conceive for >6 months ( for volunteers 35 or older)
  • Using or have used in their last 2 cycles, hormonal contraceptives including oral, emergency oral, implants, patches, transdermal injections, vaginal ring and progesterone intrauterine systems (IUS)
  • Using or have used in the last 2 cycles, infertility medications or hormone replacement therapy containing hCG or LH
Show all 14Show fewer
  • Taking clomiphene citrate or other ovulation induction drugs
  • Using any treatment which may affect the menstrual cycle
  • Have recently been pregnant, miscarried or breastfeeding
  • Have been diagnosed with polycystic ovarian syndrome (PCOS)
  • Are peri- or post-menopausal e.g. experiencing symptoms such as irregular menstrual periods, hot flushes, night sweats, sleep disturbances and mood swings
  • Are taking antibiotics containing tetracyclines
  • Have impaired liver or kidney function
  • Have previously participated in a SPD 'trying to conceive' study

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • SPD Development Company Ltd

    Bedford, Bedfordshire, MK43 7JX

Other trials in United Kingdom

About this study

This study will assess the use of the new Clearblue Advanced Fertility Monitor in a home setting for three menstrual cycles or until pregnancy is achieved (whichever comes first) by female volunteers seeking to get pregnant.

Read the detailed description

The Clearblue Fertility Monitor is a personal monitor designed to be used with disposable test sticks for the semi-quantitative measurement of estrone-3-glucuronide (E3G) and luteinising hormone (LH) in women's urine. This personal information allows women to identify their fertile window and appropriately time intercourse in order to maximise their chances of conception. A new version of this monitor (Clearblue Advance Fertility Monitor) has been developed with enhanced functionality including the option to test for pregnancy.

This study will assess the use of the new Clearblue Advanced Fertility Monitor in a home setting by female volunteers seeking to become pregnant, for three menstrual cycles or until pregnancy is achieved (whichever comes first). This is a single centre clinical study which will be conducted by volunteers at their residence and co-ordinated by the clinical department at SPD Development Company Ltd.

The overall objective of the study will be to demonstrate the usage of the new Clearblue Advanced Fertility Monitor in a home setting, to assess the benefits of monitor usage and to compare monitor data to laboratory analyses on the same urine samples.

In order to achieve these objectives, a minimum of 200 female volunteers representing the target consumer will be recruited to use the new Clearblue Advanced Fertility Monitor at home as per the instructions for use. This will involve them setting up the monitor, using the monitor for the duration of the study..

All volunteers will be required to complete a daily diary and to collect a daily urine sample. Volunteers who become pregnant on the study will be asked to continue to collect urine samples. At the end of the study all volunteers will complete a study questionnaire which includes questions relating to monitor usage and knowledge and behaviour regarding conception. Upon return to SPD, the urine samples will be tested by auto-analyser for various hormones.

Conditions
Pregnancy
Keywords
Pregnancy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02535260
Study groupRoleWhat they receive
Fertility MonitorClearblue Fertility Monitor

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Behavioural change

    To compare change in behaviour from self-reported baseline behaviour to that reported in daily diaries including intercourse frequency, personal fertility knowledge and pregnancy testing behaviour

    Measured: 3 months

  2. Behavioural change

    To observe % compliance of conducting tests

    Measured: 3 months

  3. User comprehension

    To assess user comprehension of the Instructions for use

    Measured: 3 months

  4. Product performance

    To assess performance of the Clearblue Advanced Fertility Monitor at identification of fertile window in relation to quantitative LH and E3G measurements

    Measured: 3 months

  5. product performance

    To compare pregnancy test results to quantitative hCG concentration

    Measured: 3 months

Secondary outcomes (2)
  1. Behavioural change

    To examine pregnancy test results qualitative assessment of women's behaviour in monitor usage following early pregnancy loss, should this occur during the study

    Measured: 3 month

  2. Pregnancy rate

    To examine pregnancy rate in relation to baseline demographics, intercourse pattern during the study and expected pregnancy rate based on published literature

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Aug 2015 (estimated)
  2. Primary completion11 Apr 2014

Why it stopped: Study not started, no longer required

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02535260
Sponsor's protocol ID
PROTOCOL-0682
Status last verified
Feb 2019
First submitted
18 Sep 2013
Last updated
8 Feb 2019
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Pregnancy, run by SPD Development Company Limited at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 8 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Behavioural change (time frame: 3 months). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Feb 2019.

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