CClinicalTrials.gg
CompletedNCT02248246Updated Jul 29, 2016Results posted

Harmonic ACE®+7 Shears in Laparoscopic Colectomy

A Phase 4 interventional study of Harmonic ACE®+7 Shears in Benign or Malignant Disease Indicated for Colectomy, sponsored by Ethicon Endo-Surgery. Completed at 4 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-07-29.

Sponsored by Ethicon Endo-Surgery · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
40
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This is a prospective, non-randomized, single arm, multicenter, observational study to assess the initial clinical experience with the Harmonic ACE®+7 Shears by evaluating vessel sealing during laparoscopic colectomy. The study will not modify or influence current surgeon technique. Investigators will perform each procedure using the device in compliance with their standard surgical approach and product labeling.

The Harmonic ACE®+7 Shears is cleared for commercial distribution and will be used in accordance with approved product labeling. The Harmonic ACE®+7 Shears will be assembled, calibrated, and/or used in accordance with manufacturer design specifications, product instructions and guidelines.

Read the detailed description

Study Population: Subjects enrolled into this study will undergo elective laparoscopic colectomy wherein dissection and transection of the (inferior mesenteric artery) IMA is indicated.

Primary Variable: Incidence of hemostasis at the IMA Secondary Endpoint: Incidence of hemostasis at the inferior mesenteric vain (IMV).

Definition: Hemostasis of the IMA and IMV is a dichotomous variable (i.e. yes or no). "Yes" is defined as a single activation of the Advanced Hemostasis Mode to transect and seal the IMA and IMV.

Additional exploratory endpoints include:

The percentage of subjects requiring additional measures to obtain hemostasis on the IMA and/or IMV, if identified:

  • Number of Harmonic touch ups - frequency of Harmonic reapplications required due to oozing or bleeding at initial transection of named vessels
  • Use of other energy devices (tissue sealers, cautery devices) - Graded as yes or no; if "yes", the type, transection time (using stopwatch), time of application (24 hour clock)
  • Use of hemostatic products (e.g. hemoclips, staples, sutures, fibrin sealants) - Graded as yes or no; if "yes", the type and name of product, number/volume, and time of application (24 hour clock)

Summary of the use of additional treatment after first pass hemostasis has already been achieved at the IMA and IMV. Graded as yes or no; if "yes", the type, number/volume, time of application (24 hour clock) and rationale for use.

Adverse events attributed to the study device or procedure will be collected from time of surgery to Visit 4 (Approximately 4 weeks after study surgery or as per standard of care (SOC)).

Sample size: No formal sample size determination is required for this study. Approximately 40 subjects from the United States and the European Union are planned to be enrolled into this study.

Global indication for use of the The Harmonic ACE®+7, 5mm Diameter Shears with Advanced Hemostasis:

Indicated for soft tissue incisions when bleeding control and minimal thermal injury are desired. The instruments can be used as an adjunct to or substitute for electrosurgery, lasers and steel scalpels in general, plastic, pediatric, gynecologic, urologic, thoracic, exposure to orthopedic structures (such as spine and joint space), sealing and transection of lymphatic vessels, and other open and endoscopic procedures. The instruments allow for the coagulation of vessels up to and including 7mm in diameter, using the Advanced Hemostasis function.

02

Conditions studied

  • Benign or Malignant Disease Indicated for Colectomy

Keywords

  • Hemostasis
  • Harmonic ACE®+7 Shears
  • Laparoscopic
  • Inferior mesenteric artery
  • Inferior mesenteric vein
  • Observational
03

In context

Lead sponsor

Ethicon Endo-Surgery is the lead sponsor of 47 studies on the registry; 1 is open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 7 (100%) have results posted.

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

04

Who can participate

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

Inclusion criteria

  1. Indicated for elective laparoscopic colectomy
  2. Planned dissection and transection of the IMA
  3. Age: equal to or more than18 years

Exclusion criteria

Exclusion Criteria:

Preoperative exclusion criteria:

  1. Known or suspected uncontrolled bleeding disorders
  2. Subjects unlikely to comply with protocol procedures or adhere to the study visit schedule
  3. Any condition rendering a subject unable to understand the nature, scope, and possible consequences of the study or study procedures, or
  4. Any Subject unwilling to sign the study informed consent document

    Intra-operative exclusion criteria:

  5. Prior to transection of the IMA, the investigator prospectively concludes the inability to safely isolate and transect the IMA with exclusive use of study device while adhering to the instructions for use, or
  6. Any intra-operative findings identified by the surgeon that may preclude conduct of the study procedure
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Other
    Colectomy with Harmonic ACE®+7 Shears

    Laparoscopic colectomy with Harmonic ACE®+7 Shears for dissection and vessel transection

    Device: Harmonic ACE®+7 Shears

Interventions

  • DeviceHarmonic ACE®+7 Shears

    Vessel sealing performance assessed for transection and sealing of the following named vessels: * Inferior mesenteric artery (IMA) * Inferior mesenteric vein (IMV) (if identified)

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Hemostasis at the IMA

    Hemostasis of the IMA is a dichotomous variable (i.e. yes or no). "Yes" is defined as a single activation of the Advanced Hemostasis Mode to transect and seal the IMA.

    Time frame: Intraoperatively

Secondary outcomes

  1. Percentage of Participants With Hemostasis at the IMV

    Hemostasis of the IMV is a dichotomous variable (i.e. yes or no). "Yes" is defined as a single activation of the Advanced Hemostasis Mode to transect and seal the IMV.

    Time frame: Intraoperatively

07

Results

Posted Apr 1, 2016

Participant flow

Participant flow — Overall Study
MilestoneColectomy With Harmonic ACE®+7 Shears
Started40
Completed40
Not completed0

Outcome measures

PrimaryPercentage of Participants With Hemostasis at the IMA

Hemostasis of the IMA is a dichotomous variable (i.e. yes or no). "Yes" is defined as a single activation of the Advanced Hemostasis Mode to transect and seal the IMA.

Time frame:
Intraoperatively
Reported as:
Number · percentage of subjects
Percentage of Participants With Hemostasis at the IMA
percentage of subjectsColectomy With Harmonic ACE®+7 Shears
Percentage of Participants With Hemostasis at the IMA100.0 (91.2 to 100.0)
SecondaryPercentage of Participants With Hemostasis at the IMV

Hemostasis of the IMV is a dichotomous variable (i.e. yes or no). "Yes" is defined as a single activation of the Advanced Hemostasis Mode to transect and seal the IMV.

Time frame:
Intraoperatively
Reported as:
Number · percentage of participants
Percentage of Participants With Hemostasis at the IMV
percentage of participantsColectomy With Harmonic ACE®+7 Shears
Percentage of Participants With Hemostasis at the IMV97.5 (86.8 to 99.9)

Adverse events

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

Adverse event summary by group
GroupDeathsSeriousOther
Colectomy With Harmonic ACE®+7 Shears—5/40 (12.5%)20/40 (50%)
Most frequent serious events
Most frequent serious events
EventColectomy With Harmonic ACE®+7 Shears
Small intestinal obstructionGastrointestinal disorders2/40
Postoperative ileusInjury, poisoning and procedural complications2/40
AnemiaBlood and lymphatic system disorders1/40
Gastrointestinal anastomotic leakInjury, poisoning and procedural complications1/40
Procedural haemorrhageInjury, poisoning and procedural complications1/40
Splenic haematomaInjury, poisoning and procedural complications1/40
Most frequent other events
Most frequent other events
EventColectomy With Harmonic ACE®+7 Shears
NauseaGastrointestinal disorders9/40
PainGeneral disorders7/40
VomitingGastrointestinal disorders4/40
Procedural painInjury, poisoning and procedural complications4/40
Wound infectionInfections and infestations2/40

Baseline characteristics

Safety Set - all subjects in whom the procedure was started.

Age, Continuous
Age, Continuous(years)Colectomy With Harmonic ACE®+7 Shears
Mean59.8 ± 13.3
Sex: Female, Male
Sex: Female, Male(Participants)Colectomy With Harmonic ACE®+7 Shears
Female24
Male16
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Colectomy With Harmonic ACE®+7 Shears
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White40
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Colectomy With Harmonic ACE®+7 Shears
Belgium15
United States14
United Kingdom11
08

Study locations

4 sites
  • Jackson Medical Group
    Miami, Florida 33173, United States
  • Colorectal Surgical Associates Ltd, LLP
    Houston, Texas 77054, United States
  • Ziekenhuis Oost-Limburg, Dept of Surgical Oncology
    Genk, 3600, Belgium
  • The Royal Surrey County Hospital NHS Trust
    Guildford, Surrey GU2 7XX, United Kingdom
09

References and documents

Publications

  • Plasencia G, Van der Speeten K, Hinoul P, Kelch JA, Batiller J, Severin KS, Schwiers ML, Rockall T. Large-Vessel Sealing in Laparoscopic Colectomy with an Ultrasonic Device. JSLS. 2016 Apr-Jun;20(2):e2016.00010. doi: 10.4293/JSLS.2016.00010. PubMed 27186065 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 29, 2016, 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
NCT02248246
Lead sponsor
Ethicon Endo-Surgery
Responsible party
Sponsor
First posted
Sep 25, 2014
Start date
Aug 2014
Primary completion
Feb 2015
Completion
Jun 2015
Results posted
Apr 1, 2016
Last update
Jul 29, 2016

Oversight

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

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