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Asthma in OffspringNCT01787435

Acid-suppressing Drugs Pregnancy Asthma Offspring Study

An observational study of Asthma in Offspring, run by AstraZeneca at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is 1. To estimate the association between prenatal exposure to proton pump inhibitors (PPIs) and the risk of asthma during childhood. 2. To estimate the association between prenatal exposure to H2-receptor antagonists (H2RAs) and the risk of asthma during childhood. Read more about this study

Who is it for?
Any age, women only
Conditions the study is for
Asthma in Offspring
What is being tested?
Risk of asthma in offspring
How many people
10,116 participants
Where
1 siteSpain
Study dates
Jun 2012to Dec 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 Any age
  • Women only
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: All women aged 18-45 years and with at least one pregnancy between 1 January 1995 and 31 December 2010 who have been enrolled with their PCP (Primary Care Physician) for at least 1 year and have had a health contact in the year prior to the last menstrual period (LMP) of the respective pregnancy. The final study population will include pregnancies that can be unequivocally linked with live birth(s) and only the first pregnancy ascertained during the study period for each woman will be retained

Who may be able to join

  • Females aged 18-45 years with at least one pregnancy between 1 January 1995 - 31 December 2010 (see study population description)

Who cannot join

  • Males, females below age 18 and 45 years and above (see study population description)

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Research Site

    Madrid

Other trials in Spain

About this study

Official title: A Cohort Study on the Association Between Acid-suppressing Drugs in Pregnancy and Asthma in the Offspring

The purpose of this study is

  1. To estimate the association between prenatal exposure to proton pump inhibitors (PPIs) and the risk of asthma during childhood.
  2. To estimate the association between prenatal exposure to H2-receptor antagonists (H2RAs) and the risk of asthma during childhood.
Read the detailed description

A cohort study on the association between acid-suppressing drugs in pregnancy and asthma in the offspring

Being tested
Risk of asthma in offspring
Keywords
Asthma,, acid-suppressing drugs,, pregnancy,, epidemiology
Medical subject headings
Asthma

What participants receive

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

  • Risk of asthma in offspringDrug

    Exposure to PPI or H2RA, respectively during pregnancy

    No exposure to acid suppressing drugs during pregnancy

Study groups in NCT01787435
Study groupRoleWhat they receive
All women exposed to PPI at any time during pregnancyExposure to PPI defined as presence of at least one prescription of a PPI any time between last menstrual period and delievry date
Receives: Drug: Risk of asthma in offspring
All women exposed to H2RA at any time during pregnancyExposure to H2RA defined as presence of at least one prescription of H2RA any time between last menstrual period and delivery date
Receives: Drug: Risk of asthma in offspring
Pregnant women with no recorded use of acid suppressing drugsPregnant women with no recorded use of acid suppressing drugs at any time during pregnancy

What is being measured

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

  1. Relative risk of first asthma diagnosis associated with prenatal exposure to proton pump inhibitors

    Measured: From 1 January 2005 till 31 December 2010, an expected average of 5 years.

  2. Relative risk of first asthma diagnosis associated with prenatal exposure to histamine-2 receptor antagonists

    Measured: From 1 January 2005 till 31 December 2010, an expected average of 5 years

Timeline

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

  1. First posted8 Feb 2013 (estimated)
  2. Study startJun 2012
  3. Primary completionDec 2014
  4. Study completionDec 2014

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
Retrospective
Enrolment
10,116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01787435
Sponsor's protocol ID
D9612N00018
Status last verified
Apr 2015
First submitted
6 Feb 2013
Last updated
6 Apr 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Asthma in Offspring, run by AstraZeneca at 1 site in Spain.

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 1 inclusion and 1 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: finished, as of the sponsor's last update on 6 Apr 2015. 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 Spain. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Relative risk of first asthma diagnosis associated with prenatal exposure to proton pump inhibitors (time frame: From 1 January 2005 till 31 December 2010, an expected average of 5 years.). The study lists 2 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 6 Apr 2015.

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