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CompletedNCT02282553Updated Jan 4, 2019

Gastric Capsule Examination for Iron Deficiency Anaemia

An interventional study of Magnetically steerable pill camera (Microcam Navi, Intromedic Ltd, Seoul, Korea) and Flexible endoscope in Iron Deficiency Anemia, sponsored by Sheffield Teaching Hospitals NHS Foundation Trust. Completed at 1 site in United Kingdom. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2019-01-04.

Sponsored by Sheffield Teaching Hospitals NHS Foundation Trust · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
48
Allocation
Not applicable
Ages
20 Years and older
Sex
All
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Study summary

This is a pilot prospective single blind controlled trial comparing magnetically steerable gastric capsule endoscopy to conventional oesophagogastroduodenoscopy in diagnosing upper gastrointestinal pathology in patients with recurrent/refractory iron-deficient anaemia.

Read the detailed description

Gastroscopy (OGD) is a useful test for investigating a variety of suspected upper GI disorders. But it is uncomfortable for patients and incurs the risk of intubation and sedation, plus a large proportion of procedures reveal insignificant or no pathology. Capsule endoscopy (CE) is the investigation of choice for diseases of the small bowel. It is safe, noninvasive and well tolerated.

The use of CE is traditionally restricted to the small bowel, although newer capsules to image the oesophagus and colon are currently in use. Previous capsules have failed to adequately image the stomach due to its large volume and rugal folds. Recently a magnetic capsule and handheld magnet has been developed (Microcam Navi, Intromedic Ltd, Seoul, Korea) to enable an element of manoeuvrability of the capsule. This is unnecessary in the small bowel where the capsule is propelled along its' tubular structure by peristalsis, but in the capacious stomach this may allow the capsule to be steered to examine all areas of the stomach.

The investigators have already conducted two feasibility studies in porcine models with promising results and a trial is currently underway using this equipment to steer the small bowel capsule through the stomach into the duodenum. The next logical step is to compare this technique to the conventional standard of upper GI investigation; OGD. Patients with recurrent or refractory iron deficiency anaemia require a combination of gastroscopy and small bowel capsule endoscopy as part of their diagnostic investigations. The investigators wish to undertake a pilot prospective single blind controlled trial comparing magnetically steerable gastric capsule examination to conventional OGD in diagnosing upper gastrointestinal pathology in patients with recurrent/refractory iron deficiency anaemia.

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Conditions studied

03

In context

Anemia

1,733 studies on the registry are indexed under Anemia; 246 are open to participants now.

This study's enrollment of 48 is below the median of 94 across 1,291 interventional studies indexed under Anemia.

Browse Anemia studies →

Lead sponsor

Sheffield Teaching Hospitals NHS Foundation Trust is the lead sponsor of 207 studies on the registry; 26 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients aged 20 years and over.
  • Patients with recurrent/refractory iron deficiency anaemia who require a gastroscopy and small bowel capsule endoscopy as part of their diagnostic investigations.

Exclusion criteria

Exclusion Criteria:

  • Patients under the age of 20 years.
  • Patients with a permanent pacemaker, implantable cardioverter defibrillator or REVEAL device.
  • Patients with any electronic/magnetic/mechanically controlled devices e.g. sacral nerve stimulators, bladder stimulators.
  • Patients that are pregnant.
  • Patients who are unable to understand or speak English.
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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
48 participants (actual)

Study arms

  • Experimental
    Magnetically steerable pill camera

    Capsule endoscopy uses a swallowable pill camera which passes through the GI tract by the action of peristalsis. The procedure utilizes a battery powered wireless capsule to transmit images of the gastrointestinal tract as it passes through the small intestine. The images are later downloaded to a computer and reviewed by a trained physician. Magnetically steerable gastric capsule endoscopy uses a pill camera containing a small amount of magnetic material, that can be manoeuvred in the gut and intestine by the physician using a handheld magnet. This technique will be compared to conventional gastroscopy which uses a flexible endoscope. Both techniques will be used to diagnose upper gastrointestinal pathology in patients with recurrent/refractory iron deficient anemia.

    Device: Magnetically steerable pill camera (Microcam Navi, Intromedic Ltd, Seoul, Korea) · Device: Flexible endoscope

Interventions

  • DeviceMagnetically steerable pill camera (Microcam Navi, Intromedic Ltd, Seoul, Korea)

    Capsule endoscopy uses a swallowable pill camera which passes through the GI tract by the action of peristalsis. The procedure utilizes a battery powered wireless capsule to transmit images of the gastrointestinal tract as it passes through the small intestine. The images are later downloaded to a computer and reviewed by a trained physician. Magnetically steerable gastric capsule endoscopy uses a pill camera containing a small amount of magnetic material, that can be manoeuvred in the gut and intestine by the physician using a handheld magnet.

  • DeviceFlexible endoscope

    The current standard for investigation of upper gastrointestinal disorders is flexible endoscopy; oesophagogastroduodenoscopy (OGD), also known as gastroscopy.

    Also known as: Oesophagogastroduodenoscope

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What researchers measure

Primary outcomes

  1. Diagnostic yield (pathology reporting form)

    As completed on pathology reporting form

    Time frame: Baseline

  2. Gastric mucosal visibility (Assessed on a 1-5 scale )

    Assessed on a 1-5 scale at specific gastric locations

    Time frame: Baseline

  3. Patient comfort score (visual analogue and numeric rating scales on Patient Comfort Questionnaire document)

    Assessed using visual analogue and numeric rating scales on Patient Comfort Questionnaire document

    Time frame: Baseline

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Study locations

1 site
  • Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust
    Sheffield, South Yorkshire S10 2JF, United Kingdom
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 4, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02282553
Lead sponsor
Sheffield Teaching Hospitals NHS Foundation Trust
Responsible party
Sponsor
First posted
Nov 4, 2014
Start date
Sep 25, 2014
Primary completion
May 23, 2018
Completion
May 23, 2018
Last update
Jan 4, 2019

Study contacts

Mark McAlindon, MD
principal investigator · Sheffield Teaching Hospitals NHS Foundation Trust

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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