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CompletedNCT01917513Updated Jan 23, 2018Results posted

Prospective Trial to Compare the Clinical Efficiency of G-EYE™ HD Colonoscopy With Standard HD Colonoscopy

An interventional study of G-EYE™ colonoscopy and Standard Colonoscopy in Adenoma, Polyps and Colorectal Cancer, sponsored by Smart Medical Systems Ltd.. Completed at 15 sites in 8 countries. Open to participants aged 50 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-01-23.

Sponsored by Smart Medical Systems Ltd. · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
1,000
Allocation
Randomized
Ages
50 Years and older
Sex
All
01

Study summary

The purpose of this study is to compare the adenoma detection rate of G-EYE™ high definition colonoscopy with that of standard high definition colonoscopy

Read the detailed description

This is a multicenter, two-arm, randomized, open-label study intended to compare the detection rate obtained by performing G-EYE™ high definition colonoscopy vs. the detection rate obtained by performing high definition standard colonoscopy.

The study will enroll 1000 subjects. Consecutive adult subjects who were referred for elective colonoscopy will be asked to enroll into this randomized clinical study if the candidate meets the study inclusion and exclusion criteria.

Subjects will sign informed consent form and undergo randomization. The study includes a run-in preliminary phase of 270 patients to allow physicians to get familiar with the G-EYE™ endoscope.

02

Conditions studied

  • Adenoma
  • Polyps
  • Colorectal Cancer

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Keywords

  • Adenoma
  • Polyps
  • CRC
  • Colonoscopy
  • Detection Yield
03

In context

Adenoma

657 studies on the registry are indexed under Adenoma; 98 are open to participants now.

This study's enrollment of 1,000 is above the median of 250 across 412 interventional studies indexed under Adenoma.

Browse Adenoma studies →

Lead sponsor

Smart Medical Systems Ltd. is the lead sponsor of 8 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
50 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Patients over 50 years old
  2. Referred to colonoscopy for screening, following positive FOBT testing, change of bowel habits or for surveillance colonoscopy (history of adenoma resection).
  3. The patient must understand and provide written consent for the procedure.

Exclusion criteria

Exclusion Criteria:

  1. Subjects with inflammatory bowel disease;
  2. Subjects with a personal history of polyposis syndrome;
  3. Subjects with suspected chronic stricture potentially precluding complete colonoscopy;
  4. Subjects with diverticulitis or toxic megacolon;
  5. Subjects with a history of radiation therapy to abdomen or pelvis;
  6. Pregnant or lactating female subjects;
  7. Subjects who are currently enrolled in another clinical investigation.
  8. Subjects with current oral or parenteral use of anticoagulants
  9. Subjects with recent (within the last 3 mounts) coronary ischemia or CVA (stroke)
  10. Any patient condition deemed too risky for the study by the investigator
  11. Previous colonic surgery (except for appendectomy)
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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,000 participants (actual)

Study arms

  • Experimental
    G-EYE™ colonoscopy

    G-EYE™ colonoscopy

    Device: G-EYE™ colonoscopy

  • Active comparator
    Standard Colonoscopy

    Standard Colonoscopy

    Device: Standard Colonoscopy

Interventions

  • DeviceG-EYE™ colonoscopy

    G-EYE™ colonoscopy

  • DeviceStandard Colonoscopy

    Standard Colonoscopy

06

What researchers measure

Primary outcomes

  1. Detection Rate of Adenomas and Serrated Lesions

    The percentage of patients with at least one adenoma or serrated lesion in the G-EYE™ group will be compared to the Standard group

    Time frame: Approximalty following 14 days (histology results)

Secondary outcomes

  1. Number of Polyp and Adenoma Detection, Procedure Times and Safety (Number of Patients With Adverse Events.

    The secondary outcome is a composite-each of the measured parameters will be reported as a single value for each arm

    Time frame: Up to 14 days (histology results)

07

Results

Posted Jan 23, 2018

Participant flow

Participant flow — Overall Study
MilestoneStandard ColonoscopyG-EYE™ Colonoscopy
Started502498
Completed407396
Not completed95102

Outcome measures

PrimaryDetection Rate of Adenomas and Serrated Lesions

The percentage of patients with at least one adenoma or serrated lesion in the G-EYE™ group will be compared to the Standard group

Time frame:
Approximalty following 14 days (histology results)
Reported as:
Count of participants · Participants
Detection Rate of Adenomas and Serrated Lesions
ParticipantsStandard ColonoscopyG-EYE™ Colonoscopy
Detection Rate of Adenomas and Serrated Lesions147194
SecondaryNumber of Polyp and Adenoma Detection, Procedure Times and Safety (Number of Patients With Adverse Events.

The secondary outcome is a composite-each of the measured parameters will be reported as a single value for each arm

Time frame:
Up to 14 days (histology results)

Results for this outcome have not been posted.

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
G-EYE™ Colonoscopy—2/502 (0.4%)0/502 (0%)
Standard Colonoscopy—0/498 (0%)0/498 (0%)
Most frequent serious events
Most frequent serious events
EventG-EYE™ ColonoscopyStandard Colonoscopy
obstructive sigmoid tumorGastrointestinal disorders1/5020/498
an irregular heart rate and bradycardia prior to the initiation of the procedureCardiac disorders1/5020/498

Baseline characteristics

Age, Continuous
Age, Continuous(years)Standard ColonoscopyG-EYE™ ColonoscopyTotal
Mean65.2 ± 8.7965.4 ± 8.9265.3 ± 8.85
Sex: Female, Male
Sex: Female, Male(Participants)Standard ColonoscopyG-EYE™ ColonoscopyTotal
Female173204377
Male223203426
08

Study locations

15 sites
  • Beth Israel Deaconess Medical Center, Harvard Medical School
    Boston, Massachusetts 02115, United States
  • NYU Langone Medical Center
    New York, New York 10016, United States
  • Herlev Hospital
    Harlev, 2730, Denmark
  • Universitätsmedizin Johannes Gutenberg University Mainz
    Mainz, 55131, Germany
  • Universitätsklinikum Tübingen
    Tübingen, D-72076, Germany
  • Helios Dr. Horst Schmidt Kliniken (HSK)
    Wiesbaden, 65199, Germany
  • Asian Institute of Gastroenterology
    Hyderabad, India
  • Hadassah Medical Center
    Jerusalem, 91999, Israel
  • Laniado Hospital
    Netanya, Israel
  • Assaf Harofeh Medical Center
    Tzrifin, 70300, Israel
  • Vita Salute San Raffaele University - Scientific Institute San Raffaele
    Milan, 20132, Italy
  • Maastricht University Medical Centre
    Maastricht, 6202AZ, Netherlands
  • Radboud UMC
    Nijmegen, 6500 HB, Netherlands
  • Birmingham City University
    Birmingham, United Kingdom
  • Russells Hall Hospital
    Dudley, United Kingdom
09

References and documents

Publications

  • Shirin H, Shpak B, Epshtein J, Karstensen JG, Hoffman A, de Ridder R, Testoni PA, Ishaq S, Reddy DN, Gross SA, Neumann H, Goetz M, Abramowich D, Moshkowitz M, Mizrahi M, Vilmann P, Rey JW, Sanduleanu-Dascalescu S, Viale E, Chaudhari H, Pochapin MB, Yair M, Shnell M, Yaari S, Hendel JW, Teubner D, Bogie RMM, Notaristefano C, Simantov R, Gluck N, Israeli E, Stigaard T, Matalon S, Vilkin A, Benson A, Sloth S, Maliar A, Waizbard A, Jacob H, Thielsen P, Shachar E, Rochberger S, Hershcovici T, Plougmann JI, Braverman M, Tsvang E, Abedi AA, Brachman Y, Siersema PD, Kiesslich R. G-EYE colonoscopy is superior to standard colonoscopy for increasing adenoma detection rate: an international randomized controlled trial (with videos). Gastrointest Endosc. 2019 Mar;89(3):545-553. doi: 10.1016/j.gie.2018.09.028. Epub 2018 Sep 28. PubMed 30273591 ↗

Study documents

  • Study protocol · Jul 9, 2013

Documents are hosted by the registry — open the source record to download them.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 23, 2018, 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
NCT01917513
Lead sponsor
Smart Medical Systems Ltd.
Responsible party
Sponsor
First posted
Aug 6, 2013
Start date
May 2014
Primary completion
Sep 2016
Completion
Sep 2016
Results posted
Jan 23, 2018
Last update
Jan 23, 2018

Study contacts

Ralf Kiesslich, Prof.
principal investigator · Helios Dr. Horst Schmidt Kliniken, Wiesbaden, Germany

Oversight

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

Not currently enrolling

This study is completed, as verified in Dec 2017. You cannot join it, but the record below documents what was studied.

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