ClinicalTrials.gg
CompletedNCT03334149BUMPUpdated Jun 6, 2022

Blood Pressure Monitoring in High Risk Pregnancy to Improve the Detection and Monitoring of Hypertension

An interventional study of Self-Monitoring of Blood Pressure in Pregnancy, High Risk, Pre-Eclampsia and Hypertension, sponsored by University of Oxford. Completed at 13 sites in United Kingdom. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-06-06.

Sponsored by University of Oxford · Not applicable, Interventional, and Health services research

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Phase
Not applicable
Study type
Interventional
Enrollment
3,042
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 11 studies in Pre-Eclampsia by University of Oxford — 4 open to participants now, 5 under way, none of them phase 3. Pre-Eclampsia · University of Oxford.

Started
2017
the only one that year
No phase
6 of 11
1 open now
Registered
5th of 11
by date

Among the 11 studies in Pre-Eclampsia by University of Oxford, this one is the only one that started in 2017, is one of 6 with no phase, and was the 5th registered.

Pre-Eclampsia

917 studies on the registry are indexed under Pre-Eclampsia; 244 are open to participants now.

Browse Pre-Eclampsia studies →

Open to participants now

4 of the 11 studies in Pre-Eclampsia by University of Oxford are open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

All 4 open studies →

Where they have run

Who these studies take

Of the 162 Pre-Eclampsia studies recruiting now, 81 (50%) set no upper age limit and 80 (49%) stop at 75 or younger; 18 take children under 18; 60 take healthy volunteers.

This study: 18 Years and older · female · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 11 studies in Pre-Eclampsia by University of Oxford, or all of them as a file.
02

Study summary

Raised blood pressure is a common problem in pregnancy. Raised blood pressure and pre-eclampsia affect about one in ten women and are a major cause of death and premature birth in the United Kingdom and worldwide.

Many women have expressed an interest in monitoring their own blood pressure in between antenatal visits but there has been very little research to guide this. The investigators would like to know if the diagnosis and subsequent care of women with raised blood pressure can be improved if women were able to monitor their own blood pressure safely at home. This work will test whether optimising the diagnosis, monitoring and management of raised BP during pregnancy through self-monitoring of BP is effective, acceptable and cost-effective compared to usual care.

The research team have being working with pregnant women, doctors and midwives to develop a simple and accurate method of self-monitoring of blood pressure in pregnancy.

This randomised controlled trial will:

  1. Compare self-monitoring with usual care in women at higher risk of hypertension in pregnancy and assess if self-monitoring can identify raised blood pressure earlier.
  2. Compare self-monitoring with usual care for women with high blood pressure in pregnancy to see if it leads to lower blood pressure.
  3. Assess if self-monitoring is cost-effective.

Pregnant women who chose to take part in these studies will be randomised to either usual care or asked to monitor their own blood pressure during their pregnancy in addition to their usual antenatal care.

Read the detailed description

BUMP 1 will randomise 2262 women at higher risk of hypertension in pregnancy into usual care or self-monitoring.

BUMP 2 will randomise 512 women with hypertension in pregnancy (including chronic hypertension) into usual care or self-monitoring. Women in BUMP 1 will move into BUMP 2 if they develop hypertension.

Women will be recruited at approximately 15 hospitals in England over approximately 24 months.

Women will be recruited from 20 weeks (BUMP 1) or early pregnancy(BUMP 2) and followed up until 2 months after birth.

03

Conditions studied

  • Pregnancy, High Risk
  • Pre-Eclampsia
  • Hypertension
  • Hypertension, Pregnancy-Induced
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Eligibility criteria

BUMP 1

Inclusion Criteria:

  • Participant is willing and able to give for participation in the trial
  • Pregnant woman, aged 18 years or above between 16+0 to 24+0 weeks
  • Able and willing to comply with trial requirements
  • Willing to allow her general practitioner and consultant, if appropriate, to be notified of participation in the trial
  • At higher risk for hypertension in pregnancy / pre-eclampsia defined as one or more of the following risk factors:
  • Age 40 years or older
  • Nulliparity
  • Pregnancy interval of more than 10 years
  • Family history of pre-eclampsia
  • Previous history of pre-eclampsia or gestational hypertension
  • 30 kg/m2 or above at booking
  • Chronic kidney disease
  • Twin pregnancy
  • Diabetes (Type 1\&2)
  • Disease (eg systemic lupus erythematosis or antiphospholipid disease)

Exclusion Criteria:

  • Chronic Hypertension

BUMP 2:

Inclusion Criteria:

  • Women developing pregnancy hypertension previously randomised in BUMP 1 (regardless of gestation).

OR

  • Women with chronic hypertension (defined as sustained systolic BP≥140 mmHg and/or diastolic BP≥90 mmHg, present at booking or before 20 weeks' gestation, or receiving treatment outside pregnancy and/or at time of referral).
  • Recruited up to 37+0 weeks' gestation.

OR

  • Women with hypertension after 20 weeks' gestation (defined as sustained systolic BP≥140 mmHg and/or diastolic BP≥90 mmHg).
  • Recruited at 20+0 to 37+0 weeks' gestation.

AND

  • Participant is willing and able to give informed consent for participation in the trial.
  • Woman aged 18 years or above.
  • Willing to allow her general practitioner and consultant, if appropriate, to be notified of participation in the trial.

Exclusion criteria:

Anticipated inpatient admission considered likely to lead to imminent delivery (within the next 48 hours)

Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
3,042 participants (actual)

Study arms

  • Experimental
    Self-Monitoring of Blood Pressure

    BUMP 1: using a validated home blood pressure monitor at least 3 times a week to record blood pressure BUMP 2: using a validated home blood pressure monitor daily to record blood pressure Women in the intervention groups will be encouraged to use a simple mobile tele monitoring system.

    Other: Self-Monitoring of Blood Pressure

  • No intervention
    Usual Care

    Women randomised to usual care will continue to have all their BP monitoring completed by the clinical team at their antenatal assessments.

Interventions

  • OtherSelf-Monitoring of Blood Pressure

    BUMP 1: Women randomised to the self-monitoring arm will be asked to measure blood pressures at least three times a week. They will perform two readings with a one minute interval and will be asked to act on the second reading if it falls outside their normal range thresholds described in their instructions, and aided by the tele monitoring system. BUMP 2: Women randomised to the self-monitoring arm will be asked to measure blood pressures daily. They will perform two readings with a one minute interval and will be asked to act on the second reading if it falls outside their normal range thresholds described in their instructions, aided by a tele monitoring system.

06

What researchers measure

Primary outcomes

  1. Time from recruitment to diagnosis of raised blood pressure

    Difference between groups in time from recruitment to recording of raised blood pressure by health care professional.

    Time frame: From study entry to delivery i.e. up to approximately 25 weeks from recruitment

  2. Mean systolic blood pressure

    Difference in mean systolic blood pressure between usual care and self-monitoring group.

    Time frame: From study entry to delivery i.e. up to 40 weeks

Secondary outcomes

  1. Severe hypertension

    Difference between usual care and self-monitoring group in severe hypertension (systolic BP ≥160mmHg and/or or diastolic BP ≥110mmHg) (BUMP 1 and BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  2. Serious maternal complications

    Difference between usual care and self-monitoring group in serious maternal complications (pre-eclampsia, placental abruption, transient ischemic attack or stroke, pulmonary oedema, renal failure, blood transfusion), death (BUMP 1 and BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  3. Onset of labour

    Difference between usual care and self-monitoring group in onset of labour (BUMP 1 and BUMP 2)

    Time frame: At delivery

  4. Assessment of quality of life differences between arms

    Difference between usual care and self-monitoring group in change in quality of life (measured using the EQ-5D-5L) (BUMP 1 and BUMP 2)

    Time frame: From study entry to 30 weeks of pregnancy, or from study entry to 2 weeks following study entry if randomised after 30 weeks pregnancy

  5. Assessment of quality of life differences between arms

    Difference between usual care and self-monitoring group in change in quality of life (measured using the EQ-5D-5L (BUMP 1 and BUMP 2)

    Time frame: From study entry to 8 weeks postpartum i.e. up to 48 weeks

  6. Stillbirth

    Difference between usual care and self-monitoring group in number of stillbirths (BUMP 1 and BUMP 2)

    Time frame: At delivery

  7. Early neonatal deaths

    Difference between usual care and self-monitoring group in number of early neonatal deaths (BUMP 1 BUMP 2)

    Time frame: From delivery up to 28 days postpartum i.e. up to 4 weeks

  8. Gestation at delivery

    Difference between usual care and self-monitoring group in gestation at delivery (BUMP 1 and BUMP 2)

    Time frame: At delivery

  9. Mode of delivery

    Difference between usual care and self-monitoring group in mode of delivery (BUMP 1 and BUMP 2)

    Time frame: At delivery

  10. Birth weight including centile

    Difference between usual care and self-monitoring group in birth weight of the baby including centile (BUMP 1 and BUMP 2)

    Time frame: At delivery

  11. Small for gestational age infants

    Difference between usual care and self-monitoring group in number of small for gestational age infants (\<10th and \<3rd centile) (BUMP 1 and BUMP 2)

    Time frame: At delivery

  12. Neonatal unit admissions

    Difference between usual care and self-monitoring group in number of neonatal unit admissions including length of stay (BUMP 1 and BUMP 2)

    Time frame: From delivery up to 28 days postpartum i.e. up to 4 weeks

  13. Health behaviours

    Difference between usual care and self-monitoring group in change in health behaviours (questionnaire) (BUMP 1 and BUMP 2)

    Time frame: From study entry to 30 weeks of pregnancy, or from study entry to 2 weeks following study entry if randomised after 30 weeks pregnancy.

  14. Health behaviours

    Difference between usual care and self-monitoring group in change in health behaviours (questionnaire) (BUMP 1 and BUMP 2)

    Time frame: From study entry to 8 weeks postnatal i.e. up to 48 weeks

  15. Fidelity to monitoring schedule

    Difference between usual care and self-monitoring group in fidelity to monitoring schedule (BUMP 1 and BUMP 2)

    Time frame: From study entry to delivery i.e. up to 48 weeks

  16. STAI-6 short form anxiety questionnaire

    Difference between usual care and self-monitoring group in change in State trait anxiety inventory short form anxiety questionnaire (STAI-6 ) (BUMP 1 and BUMP 2)

    Time frame: From study entry to 30 weeks of pregnancy, or from study entry to 2 weeks following study entry if randomised after 30 weeks pregnancy.

  17. STAI-6 short form anxiety questionnaire

    Difference between usual care and self-monitoring group in change in STAI-6 short form anxiety questionnaire (BUMP 1 and BUMP 2)

    Time frame: From study entry to 8 weeks postnatal i.e. up to 48 weeks

  18. Health service costs

    Difference between usual care and self-monitoring group in health service costs. (BUMP 1 and BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  19. Cost per quality-adjusted life year gained over trial period

    Difference between usual care and self-monitoring group in cost per quality-adjusted life year gained over trial period (BUMP 1 and BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  20. Qualitative

    Qualitative data gathered from participating women and healthcare professionals (BUMP 1 and BUMP 2)

    Time frame: From study entry to 8 weeks postpartum i.e. up to 48 weeks

  21. Mean diastolic blood pressure

    Difference between usual care and self-monitoring group in mean diastolic blood pressure (BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  22. Mean area under the blood pressure over time curve

    Difference between usual care and self-monitoring group in mean area under the blood pressure curve (BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  23. Mean proportion of readings above 140mmHg

    Difference between usual care and self-monitoring group in mean proportion of readings above 140mmHg (BUMP 2)

    Time frame: From study entry to delivery i.e. up to 40 weeks

  24. Adherence to medication

    Difference between usual care and self-monitoring group in change in adherence to medication (MARS) (BUMP 2)

    Time frame: From study entry to 30 weeks of pregnancy, or from study entry to 2 weeks following study entry if randomised after 30 weeks pregnancy.

  25. Adherence to medication

    Difference between usual care and self-monitoring group in change in adherence to medication (MARS) (BUMP 2)

    Time frame: From study entry to 8 weeks postnatal i.e. up to 48 weeks

07

Study locations

13 sites
  • Buckinghamshire Healthcare NHS Trust
    Aylesbury, HP21 8AL, United Kingdom
  • Birmingham Women's and Children's Hospital NHS Foundation Trust
    Birmingham, B15 2TG, United Kingdom
  • Croydon Health Services NHS Trust
    London, CR7 7YE, United Kingdom
  • Barts Health NHS Trust
    London, E1 1BB, United Kingdom
  • Kingston Hospital NHS Foundation Trust
    London, KT2 7QB, United Kingdom
  • Guy's and St Thomas' NHS Foundation Trust
    London, SE1 7EH, United Kingdom
  • King's College Hospital NHS Foundation Trust
    London, SE5 9RS, United Kingdom
  • Chelsea and Westminster Hospital NHS Foundation Trust
    London, SW10 9NH, United Kingdom
  • St George's University Hospitals NHS Foundation Trust
    London, SW17 0QT, United Kingdom
  • Manchester University NHS Foundation Trust
    Manchester, M13 9WL, United Kingdom
  • Oxford University Hospitals NHS Foundation Trust
    Oxford, OX6 2GG, United Kingdom
  • The Royal Berkshire NHS Foundation Trust
    Reading, RG1 5AN, United Kingdom
  • The Royal Wolverhampton NHS Trust
    Wolverhampton, WV10 0QP, United Kingdom
08

References and documents

Publications

  • Dougall G, Franssen M, Tucker KL, Yu LM, Hinton L, Rivero-Arias O, Abel L, Allen J, Band RJ, Chisholm A, Crawford C, Green M, Greenfield S, Hodgkinson J, Leeson P, McCourt C, MacKillop L, Nickless A, Sandall J, Santos M, Tarassenko L, Velardo C, Wilson H, Yardley L, Chappell L, McManus RJ. Blood pressure monitoring in high-risk pregnancy to improve the detection and monitoring of hypertension (the BUMP 1 and 2 trials): protocol for two linked randomised controlled trials. BMJ Open. 2020 Jan 23;10(1):e034593. doi: 10.1136/bmjopen-2019-034593. Erratum In: BMJ Open. 2020 Aug 27;10(8):e034593corr1. doi: 10.1136/bmjopen-2019-034593corr1. PubMed 31980512 ↗
  • Tucker KL, Mort S, Yu LM, Campbell H, Rivero-Arias O, Wilson HM, Allen J, Band R, Chisholm A, Crawford C, Dougall G, Engonidou L, Franssen M, Green M, Greenfield S, Hinton L, Hodgkinson J, Lavallee L, Leeson P, McCourt C, Mackillop L, Sandall J, Santos M, Tarassenko L, Velardo C, Yardley L, Chappell LC, McManus RJ; BUMP Investigators. Effect of Self-monitoring of Blood Pressure on Diagnosis of Hypertension During Higher-Risk Pregnancy: The BUMP 1 Randomized Clinical Trial. JAMA. 2022 May 3;327(17):1656-1665. doi: 10.1001/jama.2022.4712. Erratum In: JAMA. 2022 Jul 12;328(2):217. doi: 10.1001/jama.2022.11186. PubMed 35503346 ↗
  • Chappell LC, Tucker KL, Galal U, Yu LM, Campbell H, Rivero-Arias O, Allen J, Band R, Chisholm A, Crawford C, Dougall G, Engonidou L, Franssen M, Green M, Greenfield S, Hinton L, Hodgkinson J, Lavallee L, Leeson P, McCourt C, Mackillop L, Sandall J, Santos M, Tarassenko L, Velardo C, Wilson H, Yardley L, McManus RJ; BUMP 2 Investigators. Effect of Self-monitoring of Blood Pressure on Blood Pressure Control in Pregnant Individuals With Chronic or Gestational Hypertension: The BUMP 2 Randomized Clinical Trial. JAMA. 2022 May 3;327(17):1666-1678. doi: 10.1001/jama.2022.4726. PubMed 35503345 ↗
  • Hinton L, Hodgkinson J, Tucker KL, Rozmovits L, Chappell L, Greenfield S, McCourt C, Sandall J, McManus RJ. Exploring the potential for introducing home monitoring of blood pressure during pregnancy into maternity care: current views and experiences of staff-a qualitative study. BMJ Open. 2020 Dec 1;10(12):e037874. doi: 10.1136/bmjopen-2020-037874. PubMed 33262186 ↗
  • Ashworth DC, Maule SP, Stewart F, Nathan HL, Shennan AH, Chappell LC. Setting and techniques for monitoring blood pressure during pregnancy. Cochrane Database Syst Rev. 2020 Jul 23;8(8):CD012739. doi: 10.1002/14651858.CD012739.pub2. PubMed 32748394 ↗

Individual participant data

Plan to share: Yes — Data are available from the authors upon reasonable request and with permission of the University of Oxford. Use of data will require approval by an independent review committee identified for this purpose and investigators requesting data will need to provide a written protocol including analysis plan and sign a data sharing/access agreement. Requests for Data Sharing should be directed to information.guardian@phc.ox.ac.uk.

Supporting information: Study protocol, Statistical analysis plan

Time frame: from 31st May 2023

Access criteria: Use of data will require approval by an independent review committee identified for this purpose and investigators requesting data will need to provide a written protocol including analysis plan and sign a data sharing/access agreement.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2017 to primary completion in Sep 2020, 33 months.

Of 171 non-industry interventional studies with no phase under Pre-Eclampsia, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 43. This study's 33 months is above that.

Counting every sponsor, half of 176 studies reached it within 24 months; a quarter within 9 and three quarters within 43.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 24, 2017
First posted
Nov 7, 2017
StartActual
Nov 22, 2017
Primary completionActual
Sep 16, 2020
CompletionActual
Sep 16, 2020
Last update
Jun 6, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 6, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03334149
Collaborators
King's College London, Oxford University Hospitals NHS Trust, University of Southampton, University of Birmingham, Barts & The London NHS Trust, City, University of London, National Institute for Health Research, United Kingdom
Responsible party
Sponsor
First posted
Nov 7, 2017
Start date
Nov 22, 2017
Primary completion
Sep 16, 2020
Completion
Sep 16, 2020
Last update
Jun 6, 2022

Study contacts

Richard J McManus, PhD MBBS
principal investigator · University of Oxford

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2022. You cannot join it, but the record below documents what was studied.

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