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Post Partum HaemorrhagePhase 3IMoxNCT02216383

Intramuscular Oxytocics: A Randomised Control Trial

A Phase 3 study testing Carbetocin, Syntocinon and Syntometrine in people with Post Partum Haemorrhage, run by North Bristol NHS Trust at 5 sites in United Kingdom.

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

A quarter of all pregnancy and child-birth related deaths are due to excessive bleeding after the birth, "post-partum haemorrhage" (PPH). In the UK, PPH affects approx 10% of new mothers. PPH can be frightening for women and cause them to need additional treatments prolonging their hospital stay. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Post Partum Haemorrhage
What is being tested?
Carbetocin, Syntocinon and Syntometrine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
5,798 participants
Where
5 sitesUnited Kingdom
Study dates
Feb 2015to 30 Oct 2018
Phase
Phase 3
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 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • ≥18 years of age at time of delivery
  • Singleton pregnancy
  • Vaginal birth (spontaneous and instrumental)
  • >24 weeks gestation

Who cannot join

  • Significant APH (>50ml) or suspected or proven placenta abruption
  • Maternal coagulation disorder
  • Intrauterine fetal death
  • Patients who would decline blood products if required
  • Known or suspected hypertensive disorders, including pre-eclampsia, pregnancy induced hypertension, essential hypertension (even if blood pressure well controlled)
  • Hypertension in labour, or patients who have not had their blood pressure checked in labour
Show all 9Show fewer
  • Patients with peripheral, hepatic or cardiac disease
  • Patients with an allergy or hypersensitivity to any of the active ingredients in Carbetocin, Syntometrine or Syntocinon
  • Epilepsy

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United Kingdom5 sites
  • Royal United Hospital NHS Trust

    Bath, Somerset, BA1 3NG

  • North Bristol NHS Trust

    Bristol, Avon, BS10 5NB

  • Gloucestershire Hospitals NHS Trust

    Gloucester, Gloucestershire, GL1 3NN

  • Nottingham University Hospitals NHS Trust

    Nottingham

  • Great Western Hospital

    Swindon, SN3 6BB

Other trials in United Kingdom

About this study

Official title: Intramuscular Oxytocics: A Randomised Control Trial of Intramuscular Carbetocin, Syntocinon and Syntometrine for the Third Stage of Labour Following Vaginal Birth

A quarter of all pregnancy and child-birth related deaths are due to excessive bleeding after the birth, "post-partum haemorrhage" (PPH). In the UK, PPH affects approx 10% of new mothers. PPH can be frightening for women and cause them to need additional treatments prolonging their hospital stay.

Commonly PPH is caused by an inadequately contracted womb after childbirth. Giving the mother an injection of "uterotonic" medicine following the birth of their baby can prevent this. It reduces the risk of PPH by 66%.

Read more

In the UK, the two medicines most commonly used are Syntocinon and Syntometrine. Syntometrine is longer acting, but a published review of trials concluded that Syntometrine is no better at preventing severe blood loss. Syntometrine is associated with more side effects including nausea, vomiting, and high blood pressure, and has been linked with rare, but fatal, cases of stroke. All guidelines therefore recommend Syntocinon for preventing PPH.Following a telephone survey of all maternity units in the UK, 71.4% of units still routinely use Syntometrine.

Carbetocin is a newer medicine, already widely used after caesarean section, but not yet after vaginal birth. Other studies have shown that Carbetocin is slightly better at preventing bleeding after birth when compared to Syntometrine, has fewer side effects than Syntometrine, and that it may be just as good as Syntocinon at preventing PPH. No studies have directly compared all three medicines or compared their overall cost; information vital to the NHS.

Investigators propose a trial of 5712 women over 13 months, in four maternity units to compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin, for women having a vaginal birth.

Women will be randomly allocated to receive one of these drugs. Women and staff will not know which drug they receive. Staff will collect data such as the number of extra drugs and treatments needed and the volume of blood lost. Women will be asked to complete a side effects questionnaire. Investigators will perform an analysis of cost effectiveness once all results are available.

Aim: To directly compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin given intramuscularly to prevent PPH in the 3rd stage of labour.

Read the detailed description

BACKGROUND Around a quarter of all global pregnancy and child-birth related deaths are due to excessive bleeding after the birth of the baby and placenta, or "post-partum haemorrhage" (PPH). In the UK, PPH affects approximately 10% of new mothers. PPH can be extremely frightening for women and can cause them to need additional treatments including blood transfusion and removal of the womb as well as prolonging their hospital stay.

The most common cause of PPH is an inadequately contracted womb after childbirth. Giving the mother an injection of "uterotonic" medicine following the birth of their baby can prevent this. It reduces the risk of PPH by 66% and this should routinely be offered to all labouring women.

In the UK, the two medicines most commonly used for this purpose are Syntocinon and Syntometrine. Both mimic natural hormones. Syntometrine is longer acting, but a published review of trials comparing these two medicines concluded that Syntometrine is no better at preventing severe blood loss. Syntometrine is associated with more side effects including nausea, vomiting, and high blood pressure, and has been linked with rare, but fatal, cases of stroke. All guidelines therefore recommend Syntocinon for preventing PPH.

Our group conducted a telephone survey of all maternity units in the UK, and found that 71.4% of units still routinely use Syntometrine. Investigators estimate that 40,000-70,000 women per year are experiencing distressing nausea and vomiting in the emotionally important first few hours following childbirth. These women are also receiving a medicine with the potential to cause dangerous high blood pressure.

Carbetocin is a newer medicine, already widely used after caesarean section, but not yet after vaginal birth. Other studies have shown that Carbetocin is slightly better at preventing bleeding after birth when compared to Syntometrine, that it has fewer side effects than Syntometrine, and that it may be just as good as Syntocinon at preventing PPH. No studies have directly compared all three medicines or compared their overall cost; information vital to the NHS.

METHOD Investigators propose a trial of 5712 women over 13 months, in four maternity units in the South-West to compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin, for women having a vaginal birth.

Women will be randomly allocated to receive one of these drugs. Women and staff will not know which drug they receive, so as not to influence the results collected. Staff will collect data such as the number of extra drugs and treatments needed and the volume of blood lost. Women will be asked to complete a side effects questionnaire. Investigators will perform an analysis of cost effectiveness once all results are available.

AIMS To directly compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin given intramuscularly to prevent PPH in the 3rd stage of labour.

Being tested
Carbetocin, Syntocinon, Syntometrine
Keywords
Post partum haemorrhage, Active Management of Third Stage of Labour, Carbetocin, Syntocinon, Syntometrine, Birth experience, Labour
Medical subject headings
Postpartum Hemorrhage

What participants receive

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

  • CarbetocinDrug

    Also called Pabal

    The intervention is the administration of one dose of study drug to the recruited patient at the time of delivery. Carbetocin, listed here, is one of the of the three study drugs.

  • SyntocinonDrug

    Also called Oxytocin

    The intervention is the administration of one dose of study drug to the recruited patient at the time of delivery. Syntocinon, listed here, is one of the of the three study drugs.

  • SyntometrineDrug

    Also called Syntometrine 500 micrograms/5 IU Solution for Injection

    The intervention is the administration of one dose of study drug to the recruited patient at the time of delivery. Syntometrine, listed here, is one of the of the three study drugs.

Study groups in NCT02216383
Study groupRoleWhat they receive
CarbetocinExperimentalOne dose of 100 micrograms intramuscular Carbetocin given for active management of the third stage of labour, immediately after the birth of the baby
Receives: Drug: Carbetocin
SyntocinonActive comparatorOne dose of 10 International Units intramuscular Syntocinon given for active management of the third stage of labour, immediately after the birth of the baby
Receives: Drug: Syntocinon
SyntometrineActive comparatorOne dose of 500micrograms/5 International Units intramuscular Syntometrine given for active management of the third stage of labour, immediately after the birth of the baby
Receives: Drug: Syntometrine

What is being measured

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

  1. Requirement for additional uterotonic drugs within 24 hours of birth

    Proportion of patients requiring additional uterotonic drugs after administration of study drug

    Measured: From administration of prophylactic uterotonic agent to discharge from labour ward, within an expected average of 6 hours.

Secondary outcomes (12)
  1. Estimated volume of blood loss at delivery

    Estimated volume of blood loss at delivery

    Measured: Within 24 hours of delivery

  2. Transfusion of blood products (type and number of units given)

    Number of units of blood transfused, or volume of own blood returned to patient if intraoperative cell salvage used

    Measured: From delivery until transfer from Labour Ward, within an expected average of 6 hours.

  3. Manual removal of placenta in theatre

    The requirement for the placenta to be removed in theatre

    Measured: From delivery until transfer from Labour Ward

  4. Requirement for surgical intervention to manage PPH

    As a result of significant PPH a surgical intervention was required to manage the PPH

    Measured: From delivery until transfer from Labour Ward, within an expected average of 2 days

  5. Maternal hypertension

    Hypertension

    Measured: First two postnatal hours following administration of study drug

  6. Maternal hypotension

    BP <90/60

    Measured: In first two postnatal hours

  7. Maternally-reported health-related quality of life

    health-related quality of life reported by mother

    Measured: 24 hours after delivery and 14 days after delivery

  8. Abdominal pain in the first two postnatal hours, recorded in Case Report Form (CRF) by midwife

    Patient reported secondary outcome

    Measured: First 2 post natal hours

  9. Post-partum vomiting

    Patient reported secondary outcome

    Measured: First 2 post natal hours

  10. Need for anti-emetic

    Patient reported secondary outcome

    By definition, labour starts when the patient is at least 3-4cm dilated with regular, painful contractions.

    Measured: First 2 post natal hours

  11. Headache

    Patient reported secondary outcome

    Measured: First two post natal hours

  12. Maternal experience of side effects

    Captured using maternal side effects questionnaire

    Measured: In first two post natal hours

Timeline

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

  1. First posted15 Aug 2014 (estimated)
  2. Study startFeb 2015
  3. Primary completion31 Aug 2018
  4. Study completion30 Oct 2018

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
5,798 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02216383
Sponsor's protocol ID
3344
Other IDs
2014-001948-37, 2014
Acronym
IMox
Status last verified
Aug 2018
First submitted
25 Jul 2014
Last updated
14 Nov 2018
Results posted
No
Data monitoring committee
Yes

Publications

  • van der Nelson H, O'Brien S, Lenguerrand E, Marques E, Alvarez M, Mayer M, Burnard S, Siassakos D, Draycott T. Intramuscular oxytocin versus oxytocin/ergometrine versus carbetocin for prevention of primary postpartum haemorrhage after vaginal birth: study protocol for a randomised controlled trial (the IMox study). Trials. 2019 Jan 3;20(1):4. doi: 10.1186/s13063-018-3109-2.

    PubMed 30606246

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Carbetocin, Syntocinon and Syntometrine in people with Post Partum Haemorrhage, run by North Bristol NHS Trust at 5 sites in United Kingdom.

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 4 inclusion and 9 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 14 Nov 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United Kingdom. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Requirement for additional uterotonic drugs within 24 hours of birth (time frame: From administration of prophylactic uterotonic agent to discharge from labour ward, within an expected average of 6 hours.). 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 NCT02216383, which also lists 1 linked publication.

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 14 Nov 2018.

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