Deep breathing for pregnancy hypertension? tiny study ends early
NCT ID NCT04059822
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study looked at whether slow, deep breathing for 10 minutes daily could help lower blood pressure in pregnant women with pregnancy-induced hypertension. Only 1 participant was enrolled before the study was terminated, so no meaningful conclusions can be drawn. The goal was to see if a larger trial would be practical.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- slow and deep breathing exercise
- What this could lead to
- If it works, this could offer a simple, drug-free way to help manage blood pressure during pregnancy.
- What could go wrong
- The study was terminated after enrolling only 1 person, so there is almost no data to support effectiveness. It is a very early feasibility trial, not a large or conclusive study.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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1 person
The number who actually took part.
- Started
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Jan 2020
- Finished
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Apr 2023
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diagnosed with pregnancy-induced hypertension (PIH). Defined as "new hypertension presenting after 20 weeks of pregnancy without significant proteinuria (urinary protein:creatinine ratio greater than 30mg/mmol" by NICE guidelines (2010) OR diagnosed as having one-off high blood pressure but at risk of developing PIH; * Single pregnancy; * Capable of giving informed consent; * Age over 18. Exclusion Criteria: * Under 18 years old; * Referred immediately to obstetric-care after PIH diagnosis for an immediate intervention, with systolic blood pressure over 160 mmHg or diastolic blood pressure over 100 mmHg; * Multiple pregnancy (twins, triplets, etc.); * Current smoker; * Current diagnosis of respiratory diseases; asthma, COPD (Chronic Obstructive Pulmonary disease), bronchitis. (A previous occurrence or diagnosis that has not been present for longer than 1 year ago does not exclude participants, i.e. childhood asthma); * Allergy/reaction to gel used on ECG tabs; * Vulnerable participants who are unable to give informed consent.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Bournemouth University
Bournemouth, BH8 8GP, United Kingdom
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University Hospitals Dorset NHS Foundation Trust
Poole, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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