CompletedNot Applicable

The CHIPS Trial (Control of Hypertension In Pregnancy Study)

United States, Argentina, Australia987 participantsStarted 2009-04

Plain-language summary

The investigators do not know which approach to treatment of non-severe high blood pressure in pregnancy is better for women and babies. In the CHIPS Trial, the investigators seek to determine whether 'less tight' control (aiming for a diastolic blood pressure \[dBP\] of 100 mmHg), compared with 'tight' control (aiming for a diastolic blood pressure \[dBP\] of 85 mmHg) can decrease the risks of adverse baby outcomes without increasing the risk of problems for the mother.

Who can participate

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Pre-existing or gestational hypertension (pre-existing hypertension is dBP greater than or equal to 90 mmHg before pregnancy or 20 weeks' gestation; gestational hypertension is dBP greater than or equal to 90 mmHg that develops after 20 weeks)
. dBP of 90 - 105 mmHg if NOT TAKING antihypertensive therapy, or dBP of 85 - 105 mmHg if TAKING antihypertensive therapy
. Live foetus (confirmed by Doptone assessment of foetal heart tones within one week before randomisation)
. Gestational age 14 - 33+6 weeks (as measured by last menstrual period or dating ultrasound)

Exclusion criteria

. Severe systolic hypertension (defined as a systolic blood pressure \[sBP\] greater than or equal to 160 mmHg at randomisation)
. Proteinuria (defined as greater than or equal to 0.3 g/d by 24 hour urine collection, or if a 24 hour urine collection is not available, by a urinary protein:creatinine ratio of greater than or equal to 30 mg/mmol or urinary dipstick of greater than or equal to 2+)

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Pregnancy Loss or NICU Admission for Greater Than 48 Hours

Timeframe: 6 weeks

Trial details

NCT IDNCT01192412

SponsorUniversity of British Columbia

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2014-02

Results submitted2016-08-30

View on ClinicalTrials.gov More Gestational Hypertension trials