ClinicalTrials.gg
CompletedNCT03284749ECHOUpdated Aug 3, 2018

Effect of Copper on the Healing of Obstetric Wounds

An interventional study of Copper impregnated wound dressing and Normal wound dressing in Cesarean Section; Infection, Perineal Infection and Wound Infection, sponsored by Croydon Health Services NHS Trust. Completed at 1 site in United Kingdom. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-08-03.

Primary conditionSurgical Wound InfectionRegistry: InfectionsReclassifiedWhy we changed it
Registry
Infections — the first condition term the registry derived for this study.
ClinicalTrials.gg
Surgical Wound Infection
Why
  1. The study's listed conditions name Surgical Wound Infection, a narrower term within Infections.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Croydon Health Services NHS Trust · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 1 year 7 months after the study started (first participant enrolled Jan 2016, registered Sep 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
774
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 21 studies in Surgical Wound Infection with a site in United Kingdom — 2 open to participants now, 2 under way, 1 of them phase 3. Surgical Wound Infection · United Kingdom.

Enrollment
3rd of 13
774 · median 211
Started
2016
with 3 others
No phase
9 of 21
1 open now
Registered
10th of 21
by date
Lead sponsor
1 of 21
Croydon Health Services NHS Trust

Among the 21 studies in Surgical Wound Infection with a site in United Kingdom, this one is the 3rd largest by enrollment of the 13 interventional ones that give a count, is one of 4 that started in 2016, is one of 9 with no phase, and was the 10th registered.

Surgical Wound Infection

745 studies on the registry are indexed under Surgical Wound Infection; 151 are open to participants now.

Browse Surgical Wound Infection studies →

Open to participants now

2 of the 21 studies in Surgical Wound Infection with a site in United Kingdom are open now. Recruiting first, the newest first:

All 2 open studies →

A study can be open while its sites in United Kingdom have not opened yet or have stopped. Only those recruiting at a site in United Kingdom →

Who these studies take

Of the 84 Surgical Wound Infection studies recruiting now, 60 (71%) set no upper age limit and 16 (19%) stop at 75 or younger; 12 take children under 18; 14 take healthy volunteers.

This study: 18 Years and older · female · no healthy volunteers.

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 21 studies in Surgical Wound Infection with a site in United Kingdom, or all of them as a file.
02

Study summary

The most common complication of vaginal delivery is perineal tearing with a prevalence of 85% and 70% will need suturing. The caesarean section rate worldwide is rising and the rate in Croydon University Hospital is in the region of 25% of all deliveries. One in ten women will develop a wound infection of their perineal tear or caesarean section wound. Wound infection can cause pain, dehiscence, delayed wound healing, prolonged hospital stay, readmissions and interfere with a woman's ability to nurture their baby and enjoy motherhood. Copper has shown to have strong antimicrobial properties, with the ability to kill various bacteria including MRSA. It has also been shown that copper promotes new blood vessel formation and therefore enhance wound healing. This study is to investigate the effect of copper impregnated dressings and maternity pads on wound infection. Women will be randomised for a wound dressing or maternity pad with (study group) or without copper (control group). Both the clinician and the woman will be blinded to the randomised group. Wound infection will be assessed via a telephone questionnaire after 7, 14 and 30 days after delivery. When wound infection is suspected, based on the questionnaire, a swab of the wound site will be taken to detect the causative bacteria.

Read the detailed description

This is a double blind randomised controlled pilot study to assess feasibility of copper impregnated wound dressings and maternity pads for the healing of obstetric wounds. All women having a caesarean section or with perineal sutures after a vaginal delivery will be recruited from the antenatal clinic (in case of an elective caesarean section) or from the maternity wards within Croydon Health Services. All women will be given a patient information sheet describing the study prior to consent and will be giving adequate time to read the information before signing the Informed consent. Participants will be followed up via a telephone questionnaire 7, 14 and 30 days after the delivery.

Randomisation:

After inclusion all participants will be randomised for a wound dressing or maternity pad with (study group) or without copper (control group). The two sets of wound dressings and pads will be marked "A" or "B". Both the clinician and the participant will be blinded to the randomised group. Only the manufacturer will be aware of which group contains copper.

Copper impregnated dressings:

As soon as possible, but within 12 hours after primary closure of the caesarean section incision, the randomised study dressing will be applied. The two study dressings were equivalent to the dressing normally used within this Trust, except the foam of one set of dressings was impregnated with 3% copper oxide ions. The two sets of wound dressings were marked "A" and "B" and both the women and clinician were blinded to the randomised group. According to local protocol the wound dressing will be left intact for 7 days following surgery and will be renewed if necessary.

Copper impregnated maternity pads As soon as possible, but within 12 hours after suturing, women will be asked to wear the study maternity pads, which will be provided. The two sets of study maternity pads will be equivalent to the currently recommended pads, except that one set of pads will have a thin top layer of non-woven polyester fibres with 3% copper oxide ions permanently attached to it. Women will be asked to use the pads for 14 days.

Patient data, history and physical examination:

Demographic data such as age, ethnicity, height and weight will be collected as well as obstetric data and delivery details. Past medical history such as concomitant (chronic) diseases and the use of medications will be obtained. Wound infection will be assessed via a telephone questionnaire after 7, 14 and 30 days after delivery. The data will be stored in a secure room within Trust facilities. All electronic data will be stored within password protected IT system within the Trust, which is only accessible by the clinical and research team.

Questionnaire:

For the assessment of surgical site infection, the Post Discharge Questionnaire used by the HPC surgical site infection surveillance will be used, which is according to the worldwide used definition of surgical site infection by the CDC.

Statistical analysis Statistical analysis will be performed using SPSS version 20.0 or higher. Infection rates in the perineal tear group and the caesarean section group will be analysed seperately. The infection rates in the study group (with copper) will be compared to the control group and possible risk factors for infection will be explored. the Chi-Square will be used to analyse categorical variables and the T-test or Mann Whitney-U test will be used to analyse continuous variables. Multivariable logistic regression will be used to investigate risk factors for development of infection.

Sample size calculation Since the effect of copper on infection rates is currently unknown, we will conduct a pilot study for 12 months.

03

Conditions studied

  • Cesarean Section; Infection
  • Perineal Infection
  • Wound Infection
  • Surgical Site Infection

Browse trials for

Keywords

  • Copper Oxide
  • Antibiotic Resistance
04

In context

Surgical Wound Infection Reclassified

745 studies on the registry are indexed under Surgical Wound Infection; 151 are open to participants now.

This study's enrollment of 774 is above the median of 200 across 581 interventional studies indexed under Surgical Wound Infection.

Browse Surgical Wound Infection studies →

Lead sponsor

Croydon Health Services NHS Trust is the lead sponsor of 3 studies on the registry; none are open to participants now.

Compared within Surgical Wound Infection, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Infections. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Aged 18 or over
  • Delivered by caesarean section (emergency or elective), or vaginally, sustaining a perineal tear or episiotomy which needed to be sutured
  • Ability to understand and read the content of the patient information sheet (in English, via an interpreter if needed and possible)
  • Ability to give

Exclusion criteria

Exclusion Criteria:

  • Inability to give consent
  • Fetal or neonatal death or poor neonatal outcome
  • Obstetric anal sphincter injuries
  • Included in another study on postpartum infection
  • Wilson's disease
  • Allergy to copper
Terms in these criteria, in plain language(1)

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.

06

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
774 participants (actual)

Study arms

  • Experimental
    Copper impregnated wound dressing

    Wound dressing impregnated with 3% copper oxide ions, to be applied for 7 days after caesarean section

    Other: Copper impregnated wound dressing

  • Placebo comparator
    Normal wound dressing

    Wound dressing without copper, to be applied for 7 days after caesarean section

    Other: Normal wound dressing

  • Experimental
    Copper impregnated maternity pads

    Maternity pads impregnated with 3% copper oxide ions, to be used for 14 days after delivery

    Other: Copper impregnated maternity pads

  • Placebo comparator
    Normal maternity pads

    Maternity pads without copper, to be used for 14 days after delivery

    Other: Normal maternity pads

Interventions

  • OtherCopper impregnated wound dressing

    Copper impregnated wound dressing

  • OtherNormal wound dressing

    Normal wound dressing

  • OtherCopper impregnated maternity pads

    Copper impregnated maternity pads

  • OtherNormal maternity pads

    Normal maternity pads

07

What researchers measure

Primary outcomes

  1. Post Discharge Questionnaire (PDQ)

    Questionnaire used by the HPC for surgical site infection surveillance. Using worldwide definition of surgical site infection by the CDC infection is present if one of the 6 criteria are met: 1) discharge pus AND antibiotics prescribed; 2) Clinical signs\* AND wound dehiscence; 3) Clinical signs\* AND antibiotics prescribed; 4)Uterine tenderness AND antibiotics prescribed; 5) Abdominal tenderness AND antibiotics prescribed; 6) Purulent discharge from uterus AND antibiotics prescribed. \* Clinical signs: at least 2 of pain, heat, redness or swelling

    Time frame: 30 days

Secondary outcomes

  1. Length of hospitalisation

    Length of in hospital stay following child birth

    Time frame: 30 days

  2. Pain score

    Visual Analog Scale for wound pain

    Time frame: 7, 14 and 30 days after delivery

08

Study locations

1 site
  • Croydon Health Services NHS Trust
    Croydon, CR7 7YE, United Kingdom
09

References and documents

Publications

  • Johnson A, Thakar R, Sultan AH. Obstetric perineal wound infection: is there underreporting? Br J Nurs. 2012 Mar 8-21;21(5):S28, S30, S32-5. doi: 10.12968/bjon.2012.21.Sup5.S28. PubMed 22489339 ↗
  • American College of Obstetrics and Gynecology.. Operative vaginal delivery. Clinical management guidelines for obstetrician-gynecologists. American College of Obstetrics and Gynecology. Int J Gynaecol Obstet. 2001 Jul;74(1):69-76. doi: 10.1016/s0020-7292(01)00434-9. No abstract available. PubMed 11480404 ↗
  • Callwood A, Thomas J. The National Sentinel Caesarean Section Audit. Pract Midwife. 2000 Jun;3(6):34-5. No abstract available. PubMed 11260996 ↗
  • Smaill FM, Grivell RM. Antibiotic prophylaxis versus no prophylaxis for preventing infection after cesarean section. Cochrane Database Syst Rev. 2014 Oct 28;2014(10):CD007482. doi: 10.1002/14651858.CD007482.pub3. PubMed 25350672 ↗
  • Declercq E, Barger M, Cabral HJ, Evans SR, Kotelchuck M, Simon C, Weiss J, Heffner LJ. Maternal outcomes associated with planned primary cesarean births compared with planned vaginal births. Obstet Gynecol. 2007 Mar;109(3):669-77. doi: 10.1097/01.AOG.0000255668.20639.40. PubMed 17329519 ↗
  • Hillan EM. Postoperative morbidity following Caesarean delivery. J Adv Nurs. 1995 Dec;22(6):1035-42. doi: 10.1111/j.1365-2648.1995.tb03102.x. PubMed 8675855 ↗
  • Henderson E, Love EJ. Incidence of hospital-acquired infections associated with caesarean section. J Hosp Infect. 1995 Apr;29(4):245-55. doi: 10.1016/0195-6701(95)90271-6. PubMed 7658004 ↗
  • Ward VP, Charlett A, Fagan J, Crawshaw SC. Enhanced surgical site infection surveillance following caesarean section: experience of a multicentre collaborative post-discharge system. J Hosp Infect. 2008 Oct;70(2):166-73. doi: 10.1016/j.jhin.2008.06.002. Epub 2008 Aug 23. PubMed 18723248 ↗
  • Creech CB, Litzner B, Talbot TR, Schaffner W. Frequency of detection of methicillin-resistant Staphylococcus aureus from rectovaginal swabs in pregnant women. Am J Infect Control. 2010 Feb;38(1):72-4. doi: 10.1016/j.ajic.2009.06.015. Epub 2009 Oct 21. PubMed 19836855 ↗
  • ACOG Practice Bulletin No. 120: Use of prophylactic antibiotics in labor and delivery. Obstet Gynecol. 2011 Jun;117(6):1472-1483. doi: 10.1097/AOG.0b013e3182238c31. No abstract available. PubMed 21606770 ↗
  • Borkow G, Gabbay J. Copper as a biocidal tool. Curr Med Chem. 2005;12(18):2163-75. doi: 10.2174/0929867054637617. PubMed 16101497 ↗
  • Noyce JO, Michels H, Keevil CW. Potential use of copper surfaces to reduce survival of epidemic meticillin-resistant Staphylococcus aureus in the healthcare environment. J Hosp Infect. 2006 Jul;63(3):289-97. doi: 10.1016/j.jhin.2005.12.008. Epub 2006 May 2. PubMed 16650507 ↗
  • O'Gorman J, Humphreys H. Application of copper to prevent and control infection. Where are we now? J Hosp Infect. 2012 Aug;81(4):217-23. doi: 10.1016/j.jhin.2012.05.009. Epub 2012 Jun 26. PubMed 22738611 ↗
  • Borkow G, Gabbay J, Zatcoff RC. Could chronic wounds not heal due to too low local copper levels? Med Hypotheses. 2008;70(3):610-3. doi: 10.1016/j.mehy.2007.06.006. Epub 2007 Aug 6. PubMed 17689198 ↗
  • Sen CK, Khanna S, Venojarvi M, Trikha P, Ellison EC, Hunt TK, Roy S. Copper-induced vascular endothelial growth factor expression and wound healing. Am J Physiol Heart Circ Physiol. 2002 May;282(5):H1821-7. doi: 10.1152/ajpheart.01015.2001. PubMed 11959648 ↗
  • Uauy R, Olivares M, Gonzalez M. Essentiality of copper in humans. Am J Clin Nutr. 1998 May;67(5 Suppl):952S-959S. doi: 10.1093/ajcn/67.5.952S. PubMed 9587135 ↗
  • Hostynek JJ, Dreher F, Maibach HI. Human skin penetration of a copper tripeptide in vitro as a function of skin layer. Inflamm Res. 2011 Jan;60(1):79-86. doi: 10.1007/s00011-010-0238-9. Epub 2010 Aug 20. Erratum In: Inflamm Res. 2011 Jun;60(6):611. PubMed 20721598 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

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 Jan 2016 to primary completion in Oct 2017, 21 months.

Of 201 non-industry interventional studies with no phase under Surgical Wound Infection, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 47. This study's 21 months is below that.

Counting every sponsor, half of 208 studies reached it within 24 months; a quarter within 12 and three quarters within 45.

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

Registered
Sep 13, 2017
First posted
Sep 15, 2017
StartActual
Jan 14, 2016
Primary completionActual
Oct 19, 2017
CompletionActual
Dec 19, 2017
Last update
Aug 3, 2018
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 Aug 3, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03284749
Lead sponsor
Croydon Health Services NHS Trust
Responsible party
Mr Abdul H Sultan (Consultant Obstetrician and Gynaecologist, Croydon Health Services NHS Trust) — Principal investigator
First posted
Sep 15, 2017
Start date
Jan 14, 2016
Primary completion
Oct 19, 2017
Completion
Dec 19, 2017
Last update
Aug 3, 2018

Study contacts

Abdul H Sultan
principal investigator · Croydon Health Services NHS Trust

Oversight

Data monitoring committee
No
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 Aug 2018. You cannot join it, but the record below documents what was studied.

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