ClinicalTrials.gg
Not yet recruitingNCT06935734CARE IUpdated Apr 20, 2025

Robotic Colonoscopy Using the Triton 4.0 System in Adults for Screening, Surveillance, and Diagnosis of Lower Gastrointestinal Conditions

An interventional study of Diagnostic Colonoscopy in Colonoscopy, Colorectal Cancer Screening and Colorectal Neoplasms, sponsored by Neptune Medical. Not yet recruiting. Open to participants aged 22 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-04-20.

Sponsored by Neptune Medical · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 5 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Not applicable
Ages
22 Years and older
Sex
All
01

Study summary

This study is a prospective, single-arm, non-randomized, single site first-in-human study and will be conducted in two phases, where Phase A will serve to evaluate the safety of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies, and Phase B will evaluate the safety and efficacy of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies.

02

Conditions studied

  • Colonoscopy
  • Colorectal Cancer Screening
  • Colorectal Neoplasms
  • Gastrointestinal Endoscopy
03

In context

Colorectal Neoplasms

6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.

This study's planned enrollment of 50 is below the median of 76 across 4,800 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

Neptune Medical is the lead sponsor of 4 studies on the registry; 2 are open to participants now.

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

04

Who can participate

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

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

  1. Age ≥ 22 years
  2. Adults indicated for elective screening, surveillance or diagnostic colonoscopy
  3. Subject is willing and able to provide written prior to receiving any non-standard of care Clinical Investigation Plan specific procedures
  4. Subject is willing and able to comply with all Clinical Investigation Plan required preparation and follow- up visits -

Exclusion criteria

Exclusion Criteria:

Initial Screening / Pre-Operative:

  1. Any medical or physical condition/limitation that would contraindicate a conventional colonoscopy. This assessment will be made by the investigator.
  2. Any active implantable medical devices (e.g., pacemakers, defibrillators)
  3. Previous failed colonoscopy (except for inadequate bowel preparation)
  4. > 45 kg/m2
  5. Pregnant participants, women of (pre-menopausal and/or no history of hysterectomy), confirmed by a positive pregnancy test (serum).
  6. Surgically altered colonic anatomy
  7. History of colorectal cancer, inflammatory bowel disease, polyposis syndrome, hereditary nonpolyposis colorectal cancer (Lynch) syndrome, sclerosing encapsulating peritonitis, active diverticulitis in last 6 months or toxic megacolon
  8. Lower gastrointestinal bleeding within 28 days prior to the colonoscopy day
  9. Known bleeding tendency such as hemophilia or coagulation factor deficiencies
  10. Patient receiving antiplatelet or anticoagulation therapy apart from low-dose aspirin
  11. Known colonic stricture
  12. Known risk factors for abdominal adhesions such as history of complex abdominal or pelvis surgical procedures, based on investigator assessment
  13. Known abdominal wall hernias
  14. History of radiotherapy to the abdomen or pelvis
  15. History of mesenteric ischemia
  16. Known coronary ischemia or cardiovascular stroke within 3 months prior to the colonoscopy procedure
  17. to the proposed sedation / anesthesia
  18. Received any medicine or treatment within 28 days prior to the colonoscopy procedure
  19. Received or planning to receive any other endoscopic procedure within 4 weeks prior and 2 weeks after the colonoscopy procedure
  20. Participation in any concurrent clinical trial that may impact the results of this study

    Intra-Operative Exclusion Criteria:

  21. Inadequate Bowel Preparation, Boston Bowel Prep Scale Score (after cleansing) \< 2 in any section
  22. Failed conventional colonoscopy or polypectomy/ performed during the conventional colonoscopy procedure in Phase A
  23. Any presenting condition discovered intraoperatively that in the opinion of the investigator would make participating in this study not in the participant's/patient's best interest. For example, presence of a stricture or tight sigmoid that would make passing an overtube risky for the patient
  24. Any condition, in the opinion of the Investigator, that is unstable and could jeopardize the safety of the subject and their compliance in the study
Terms in these criteria, in plain language(6)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask for contraception during the study and for a time after it.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

05

Study design

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

Study arms

  • Other
    Single Arm

    This study is a prospective, single-arm, non-randomized, single site first-in-human study and will be conducted in two phases, where the first phase (A) will serve to evaluate the safety of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies, and the second phase (B) will evaluate the safety and efficacy of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies.

    Diagnostic Test: Diagnostic Colonoscopy

Interventions

  • Diagnostic testDiagnostic Colonoscopy

    Phase A will serve to evaluate the safety of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies, and Phase B will evaluate the safety and efficacy of the Triton 4.0 System to perform screening, surveillance and diagnostic colonoscopies.

06

What researchers measure

Primary outcomes

  1. Safety Endpoint - Incidence of Major Adverse Events Within 48 Hours

    Absence of Major Adverse Events (MAEs) within 48 hours of the procedure. MAEs are defined as any of the following: 1. Device-related death within 48 hours 2. Perforation within 48 hours 3. Intraprocedural bleeding preventing completion of the procedure 4. Delayed bleeding within 48 hours accompanied by pre-defined symptoms and confirmed by a hemoglobin drop of \>2 g, leading to admission to the hospital, prolongation of hospital stay, or another procedure requiring sedation/anesthesia. Unit of Measure: Number of participants with at least one Major Adverse Event

    Time frame: 48 hours

  2. Efficacy Endpoint - Successful Completion of Colonoscopy

    Completion of colonoscopy defined by both: (a) successful cecal intubation (clinically acceptable access and visualization of the cecum), and (b) successful withdrawal (clinically acceptable diagnostic and therapeutic access of the entire colon tract).

    Time frame: During procedure

Secondary outcomes

  1. Time to Cecum

    Time from scope insertion to successful cecal intubation. Unit of Measure: Minutes

    Time frame: During procedure

  2. Need for Repositioning

    Number of times a participant was repositioned to facilitate scope advancement. Unit of Measure: Number of repositioning events

    Time frame: During procedure

  3. Polypectomy Success

    If applicable, indicates whether at least one polyp was successfully removed using standard polypectomy tools during the procedure. This outcome is evaluated per participant and applies only to Phase B (robotic procedures). Unit of Measure: Categorical - Yes / No / Partial (i.e., at least one polyp removed, but not all targeted polyps).

    Time frame: During procedure

  4. NASA Task Load Index (NASA-TLX)

    Physician's subjective workload assessment using the NASA Task Load Index (NASA-TLX), a validated tool consisting of six subscales: Mental Demand, Physical Demand, Temporal Demand, Performance, Effort, and Frustration. Each subscale is scored from 0 to 100 in increments of 5. Higher scores indicate greater perceived workload. Unit of Measure: Composite score (0-100)

    Time frame: Post-procedure

  5. Mucosal Injury Score

    Mucosal injury graded using a 5-point ordinal scale based on injury severity: 1 = Erythema/ Bruising, 2 = Mucosal break \<5mm in length, 3 = Mucosal break \>5mm in length, 4 = Mucosal Injury (non-full thickness), 5 = Full thickness injury. Outcome is reported per subject. Only applicable to Phase B (robotic procedures). Unit of Measure: Score (1-5); higher scores indicate more severe injury

    Time frame: During procedure

  6. Delayed Bleeding (14 Days)

    Number of participants with delayed bleeding within 14 days confirmed by pre-determined symptoms and hemoglobin drop of \>2 g/dL. Unit of Measure: Number of participants

    Time frame: 14 days

  7. Delayed Perforation (14 Days)

    Number of participants with delayed perforation identified within 14 days post-procedure. Unit of Measure: Number of participants

    Time frame: 14 days

  8. Adenoma Detection Rate (ADR)

    Proportion of participants in whom at least one adenomatous polyp is detected during the robotic colonoscopy procedure. Applicable to Phase B (robotic procedures) only. Unit of Measure: Percentage of participants with ≥1 adenoma detected

    Time frame: During procedure

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06935734
Lead sponsor
Neptune Medical
Collaborators
KCRI, H-T. Centrum Medyczne Sp. z o.o. sp. k
Responsible party
Sponsor
First posted
Apr 20, 2025
Start date
Apr 14, 2025 (estimated)
Primary completion
Jun 6, 2025 (estimated)
Completion
Jul 31, 2025 (estimated)
Last update
Apr 20, 2025

Study contacts

Aishwarya Gosai
Contact
aishwarya@neptunemedical.com
(949) 394 8073
Marcin Romanczyk
principal investigator · H-T Centrum Medyczne
Jason Samarasena, MD
principal investigator · University of California, Irvine
Tomasz Romanczyk
principal investigator · H-T Centrum Medyczne

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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