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Postpartum HemorrhageNCT07005349

THUMB: Multi-centre Cluster Trial for Caesarean Section Haemorrhage

A study testing Quality improvement program in people with Postpartum Hemorrhage, run by Bruce Biccard at 1 site in South Africa.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The quality improvement project evaluating the delivery of a perioperative care complex intervention to improve haemorrhage-related outcomes in patients undergoing caesarean section. The objectives of the current study will be: 1. Read more about this study

Who is it for?
Any age, women only
Conditions the study is for
Postpartum Hemorrhage
What is being tested?
Quality improvement program
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2,400 participants
Where
1 siteSouth Africa
Study dates
1 Jun 2025to 30 Jun 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

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

Who may be able to join

  • Any patient who requires a caesarean section in participating countries with hospitals that routinely perform caesarean section.

Who cannot join

  • Patients who opt out of the trial will be excluded.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

MARGOT FLINT, PhD contact

00274045001

margot.flint@uct.ac.za

BRUCE BICCARD, PhD contact

00274045015

bruce.biccard@uct.ac.za

South Africa1 site, 1 recruiting
  • Mowbray Maternity Hospital

    Cape Town

    Margot Flint, PhD, 0721222111, margot.flint@uct.ac.za

    Recruiting

Other trials in South Africa

About this study

Official title: Rule of THUMB: A Multi-centre Cluster Trial Evaluating the Implementation of a Perioperative Care Complex Intervention to Improve Outcomes From Haemorrhage During and After Caesarean Section in African Hospitals

The quality improvement project evaluating the delivery of a perioperative care complex intervention to improve haemorrhage-related outcomes in patients undergoing caesarean section. The objectives of the current study will be:

  1. To evaluate whether implementation of the 'Rule of THUMB' perioperative complex intervention increases risk assessment, diagnosis and compliance with proven interventions for haemorrhage during and after caesarean section.
  2. To understand the influence of contextual and socio-dynamic factors on how the trial results were achieved and how the intervention mechanisms did, or did not, work in practice (the process evaluation). The findings from this study will be used subsequently to modify and improve the quality improvement intervention, so that it can be delivered at scale across Africa and assess its impact on haemorrhage during and after caesarean section in the future.
Read the detailed description

The study involves a complex intervention to improve maternal outcomes for patients undergoing caesarean section based on early diagnosis of haemorrhage during and after surgery coupled to early treatment through first-responder protocolised treatment using a care bundle of five elements called the rule of THUMB. The intervention is essentially a quality improvement programme aimed at delivering better care, care that is already known to be effective in delivering better patient outcomes. The intervention comprises two mandatory risk assessments (preoperatively in theatre and postoperatively prior to discharge from the recovery area) which are linked to hospital-specific responses. Assessments for bleeding will occur intraoperatively (through direct vision, haemodynamic changes and/or measurement of blood loss) and postoperatively (with the use of the rapid assessment tool). If bleeding is diagnosed at any point, the THUMB checklist will be used to activate bundled care. On discharge from recovery, high-risk patients will be scheduled to receive a postoperative ward visit within four hours, when a further assessment for bleeding will occur. Staff at each hospital will collect data for the two-week usual care (control) phase describing usual perioperative care. This will be followed by a period of co-design and training (2-6 weeks, as required), and then implementation of the intervention phase for a further two weeks at each hospital. The initial intervention will be modified in accordance with data collected during the usual care phase, in conjunction with local stakeholders. Further intervention refinement will occur after each period of data recruitment and analysis. Two intervention cycles will occur. The intervention is essentially a quality improvement programme aimed at delivering better care, care that is already known to be effective in delivering better patient outcomes. The intervention aims to improve compliance with recommended care for prevention and treatment of haemorrhage during and after caesarean section by creating a bundle of care that is delivered simultaneously (not sequentially) by first responders. It includes two mandated risk assessments before and after surgery, and implementation of the THUMB care bundle either in response to bleeding intraoperatively or in recovery or the ward through the rapid assessment tool.

Being tested
Quality improvement program
Medical subject headings
Postpartum Hemorrhage

What participants receive

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

  • Quality improvement programOther

    The intervention comprises two mandatory risk assessments (preoperatively in theatre and postoperatively prior to discharge from the recovery area) which are linked to hospital-specific responses. Assessments for bleeding will occur intraoperatively (through direct vision, haemodynamic changes and/or measurement of blood loss) and postoperatively (with the use of the rapid assessment tool). If bleeding is diagnosed at any point, the THUMB checklist will be used to activate bundled care. On discharge from recovery, high-risk patients will be scheduled to receive a postoperative ward visit within four hours, when a further assessment for bleeding will occur.

Study groups in NCT07005349
Study groupRoleWhat they receive
Control phaseNo interventionControl data will be collected at all hospitals over a two-week period (usual care phase). Patients in the control phase will receive the current standard postoperative care.
InterventionActive comparatorThe intervention (a quality improvement programme) will then be implemented by the unit for all patients, aimed at delivering care that is already known to be effective in delivering better patient outcomes.
Receives: Other: Quality improvement program

What is being measured

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

  1. Patient assessed as high-risk for postpartum haemorrhage

    To evaluate the effect of the trial intervention on identification of high-risk patients

    Measured: 6 months

  2. Administration of uterotonics intra- or postoperatively

    To evaluate the effect of the trial intervention on administration of uterotonics

    Measured: 6 months

  3. Administration of tranexamic acid intra- or postoperatively

    To evaluate the effect of the trial intervention on administration of tranexamic acid

    Measured: 6 months

  4. Uterine massage intra- or postoperatively after delivery of the baby

    To evaluate the effect of the trial intervention on uterine massage

    Measured: 6 months

  5. A postoperative clinician visit within four hours of discharge to the ward

    To evaluate the effect of the trial intervention on clinician ward visit postoperatively

    Measured: 6 months

Secondary outcomes (5)
  1. Diagnosis of postpartum haemorrhage

    To evaluate the effect of the trial intervention on a diagnosis of postpartum haemorrhage

    Measured: 6 months

  2. 30 day in-hospital mortality

    To evaluate the effect of the trial intervention on 30 day in-hospital mortality

    Measured: 6 months

  3. Repeat laparotomy for suspected haemorrhage

    To evaluate the effect of the trial intervention on repeat laparotomy for suspected haemorrhage

    Measured: 6 months

  4. Duration of hospital stay

    To evaluate the effect of the trial intervention on duration of hospital stay

    Measured: 6 months

  5. Referral to higher level of care for further management of bleeding/resuscitation

    To evaluate the effect of the trial intervention on referral to higher level of care for further management of bleeding/resuscitation

    Measured: 6 months

Timeline

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

  1. First posted5 Jun 2025
  2. Study start1 Jun 2025
  3. Primary completion30 Jun 2026 (estimated)
  4. Study completion30 Jun 2026 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
2,400 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07005349
Sponsor's protocol ID
The Rule of THUMB trial
Status last verified
Apr 2026
First submitted
14 Apr 2025
Last updated
13 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: IPD will be shared with researchers upon request, including, the supporting information selected below.

Publications

  • Sobhy S, Arroyo-Manzano D, Murugesu N, Karthikeyan G, Kumar V, Kaur I, Fernandez E, Gundabattula SR, Betran AP, Khan K, Zamora J, Thangaratinam S. Maternal and perinatal mortality and complications associated with caesarean section in low-income and middle-income countries: a systematic review and meta-analysis. Lancet. 2019 May 11;393(10184):1973-1982. doi: 10.1016/S0140-6736(18)32386-9. Epub 2019 Mar 28.

    PubMed 30929893
  • Bishop D, Dyer RA, Maswime S, Rodseth RN, van Dyk D, Kluyts HL, Tumukunde JT, Madzimbamuto FD, Elkhogia AM, Ndonga AKN, Ngumi ZWW, Omigbodun AO, Amanor-Boadu SD, Zoumenou E, Basenero A, Munlemvo DM, Youssouf C, Ndayisaba G, Antwi-Kusi A, Gobin V, Forget P, Mbwele B, Ndasi H, Rakotoarison SR, Samateh AL, Mehyaoui R, Patel-Mujajati U, Sani CM, Esterhuizen TM, Madiba TE, Pearse RM, Biccard BM; ASOS investigators. Maternal and neonatal outcomes after caesarean delivery in the African Surgical Outcomes Study: a 7-day prospective observational cohort study. Lancet Glob Health. 2019 Apr;7(4):e513-e522. doi: 10.1016/S2214-109X(19)30036-1.

    PubMed 30879511
  • Sheldon WR, Blum J, Vogel JP, Souza JP, Gulmezoglu AM, Winikoff B; WHO Multicountry Survey on Maternal and Newborn Health Research Network. Postpartum haemorrhage management, risks, and maternal outcomes: findings from the World Health Organization Multicountry Survey on Maternal and Newborn Health. BJOG. 2014 Mar;121(Suppl 1):5-13. doi: 10.1111/1471-0528.12636.

    PubMed 24641530
  • Gallos I, Devall A, Martin J, Middleton L, Beeson L, Galadanci H, Alwy Al-Beity F, Qureshi Z, Hofmeyr GJ, Moran N, Fawcus S, Sheikh L, Gwako G, Osoti A, Aswat A, Mammoliti KM, Sindhu KN, Podesek M, Horne I, Timms R, Yunas I, Okore J, Singata-Madliki M, Arends E, Wakili AA, Mwampashi A, Nausheen S, Muhammad S, Latthe P, Evans C, Akter S, Forbes G, Lissauer D, Meher S, Weeks A, Shennan A, Ammerdorffer A, Williams E, Roberts T, Widmer M, Oladapo OT, Lorencatto F, Bohren MA, Miller S, Althabe F, Gulmezoglu M, Smith JM, Hemming K, Coomarasamy A. Randomized Trial of Early Detection and Treatment of Postpartum Hemorrhage. N Engl J Med. 2023 Jul 6;389(1):11-21. doi: 10.1056/NEJMoa2303966. Epub 2023 May 9.

    PubMed 37158447
  • APORG Caesarean Delivery Haemorrhage Group. Identifying interventions to reduce peripartum haemorrhage associated with caesarean delivery in Africa: A Delphi consensus study. PLOS Glob Public Health. 2022 Aug 31;2(8):e0000455. doi: 10.1371/journal.pgph.0000455. eCollection 2022.

    PubMed 36962699
  • Althabe F, Therrien MNS, Pingray V, Hermida J, Gulmezoglu AM, Armbruster D, Singh N, Guha M, Garg LF, Souza JP, Smith JM, Winikoff B, Thapa K, Hebert E, Liljestrand J, Downe S, Garcia Elorrio E, Arulkumaran S, Byaruhanga EK, Lissauer DM, Oguttu M, Dumont A, Escobar MF, Fuchtner C, Lumbiganon P, Burke TF, Miller S. Postpartum hemorrhage care bundles to improve adherence to guidelines: A WHO technical consultation. Int J Gynaecol Obstet. 2020 Mar;148(3):290-299. doi: 10.1002/ijgo.13028. Epub 2019 Dec 23.

    PubMed 31709527
  • Seim AR, Alassoum Z, Souley I, Bronzan R, Mounkaila A, Ahmed LA. The effects of a peripartum strategy to prevent and treat primary postpartum haemorrhage at health facilities in Niger: a longitudinal, 72-month study. Lancet Glob Health. 2023 Feb;11(2):e287-e295. doi: 10.1016/S2214-109X(22)00518-6.

    PubMed 36669809
  • Main EK, Goffman D, Scavone BM, Low LK, Bingham D, Fontaine PL, Gorlin JB, Lagrew DC, Levy BS. National Partnership for Maternal Safety: consensus bundle on obstetric hemorrhage. Anesth Analg. 2015 Jul;121(1):142-148. doi: 10.1097/AOG.0000000000000869.

    PubMed 26091046

Questions about this trial

What is this clinical trial studying?

A study testing Quality improvement program in people with Postpartum Hemorrhage, run by Bruce Biccard at 1 site in South Africa.

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: looking for participants now, as of the sponsor's last update on 13 Apr 2026. 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 South Africa. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact MARGOT FLINT, PhD (00274045001, margot.flint@uct.ac.za), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Patient assessed as high-risk for postpartum haemorrhage (time frame: 6 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?

On the ClinicalTrials.gov record for NCT07005349, which also lists 8 linked publications.

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 13 Apr 2026.

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