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CompletedNCT04366583Updated Dec 23, 2020Results posted

Argon Plasma Coagulation vs Hemoclipping for Bleeding Peptic Ulcers

A Phase 4 interventional study of argon plasma coagulation and hemoclipping in Bleeding Peptic Ulcer, sponsored by Kaohsiung Veterans General Hospital.. Completed at 1 site in Taiwan. Open to participants aged 20 Years to 80 Years. Per ClinicalTrials.gov, last updated 2020-12-23.

Sponsored by Kaohsiung Veterans General Hospital. · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 8 years 2 months after the study started (first participant enrolled Feb 2012, registered Apr 2020).
Phase
Phase 4
Study type
Interventional
Enrollment
166
Allocation
Randomized
Ages
20 Years to 80 Years
Sex
All
01

Study summary

Endoscopic treatment is recommended for initial hemostasis in nonvariceal upper gastrointestinal bleeding. However, the additional hemostatic efficacy of argon plasma coagulation (APC) has not been widely investigated. We designed a randomized trial comparing APC plus injection therapy vs hemoclipping plus injection therapy for peptic ulcer bleeding.

Read the detailed description

【Goals and Background 】 Endoscopic treatment is recommended for initial hemostasis in nonvariceal upper gastrointestinal bleeding. Many endoscopic devices have been demonstrated to be effective in the hemostasis of bleeding ulcers. However, the additional hemostatic efficacy of argon plasma coagulation (APC) after endoscopic injection therapy has not been widely investigated.

【Study】 From Feb. 2012 to April 2016, consecutive patients with high-risk bleeding ulcers, characterized by active bleeding, non-bleeding visible vessels and adherent clots, were admitted to our hospital. They prospectively randomly underwent either APC therapy plus distilled water injection or Hemoclipping plus distilled water injection. Pantoprazole infusion was conducted during the fasting period after endoscopy and orally for 8 weeks to encourage ulcer healing. Episodes of rebleeding were retreated with endoscopic combination therapy. Patients who did not benefit from retreatment underwent emergency surgery or arterial embolization.

02

Conditions studied

  • Bleeding Peptic Ulcer

Keywords

  • argon plasma coagulation
  • hemoclipping
  • distilled water injection
03

In context

Peptic Ulcer

193 studies on the registry are indexed under Peptic Ulcer; 31 are open to participants now.

This study's enrollment of 166 is above the median of 150 across 142 interventional studies indexed under Peptic Ulcer.

Browse Peptic Ulcer studies →

Lead sponsor

Kaohsiung Veterans General Hospital. is the lead sponsor of 102 studies on the registry; 12 are open to participants now.

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

04

Who can participate

Ages eligible
20 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

. high-risk peptic ulcer bleeding. High-risk bleeding ulcers were defined as participants with stigmata of a bleeding visible vessels (eg, spurting, oozing), a non-bleeding visible vessels (NBVV) or adherent clot.4 A NBVV at endoscopy was defined as a raised red, red-blue or pale hemispheric vessel protruding from the ulcer bed, without active bleeding. An adherent clot was defined as an overlying blood clot that was resistant to vigorous irrigation.

Exclusion criteria

Exclusion Criteria:

  • the presence of another possible bleeding site (eg, gastroesophageal varix, gastric cancer, reflux esophagitis)
  • coexistence of actively severe ill diseases (eg, septic shock, stroke, myocardial infarction, surgical abdomen)
  • treatment with an anticoagulant (eg, warfarin)
  • pregnancy
  • the presence of operated stomach
  • refusal to participate in the study
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
166 participants (actual)

Study arms

  • Experimental
    Argon plasma coagulation plus distilled water injection

    The patients in this group received Argon plasma coagulation therapy, PSD-60/Endoplasma (Olympus Corporation, Tokyo, Japan), following distilled water injection at index endoscopy. Then participants were treated with intravenous pantoprazole (Pantoloc i.v., Nycomed GmbH, Singen, Germany) 40 mg every 12 hours during the first 3 days, followed by oral pantoprazole (Pantoloc, Takeda GmbH, Oranienburg, Germany) 40 mg daily until the end of56-day study period.

    Device: argon plasma coagulation

  • Active comparator
    Hemoclipping plus distilled water injection

    The patients in this group received hemoclipping (Olympus HX 110/610, Olympus Corporation, Tokyo, Japan), following distilled water injection at index endoscopy. Then participants were treated with intravenous pantoprazole (Pantoloc i.v., Nycomed GmbH, Singen, Germany) 40 mg every 12 hours during the first 3 days, followed by oral pantoprazole (Pantoloc, Takeda GmbH, Oranienburg, Germany) 40 mg daily until the end of56-day study period.

    Device: hemoclipping

Interventions

  • Deviceargon plasma coagulation

    Olympus electrosurgical unit/argon plasma coagulation unit (PSD-60/Endoplasma, Olympus Corp., Tokyo, Japan)

  • Devicehemoclipping

    clipping device (Olympus HX 110/610, Olympus Corp., Tokyo, Japan)

06

What researchers measure

Primary outcomes

  1. Number of Participants With Rebleeding

    Rebleeding was observed for a 30-day study period. One or more the following criteria were considered as evidence of recurrent bleeding: aspiration of fresh blood from a nasogastric or orogastric tube; pulse rate over 100 beats per minute; a drop in systolic blood pressure exceeding 30 mmHg; or continue coffee ground emesis or melena with a decline in hemoglobin of at least 2g/dL.

    Time frame: up to 30 days

Secondary outcomes

  1. Mortality

    all-cause deaths were recorded.

    Time frame: up to 30 days

  2. Surgery or Arterial Embolization

    need for surgery or arterial embolization

    Time frame: up to 30 days

07

Results

Posted Oct 22, 2020

Participant flow

Participant flow — Overall Study
MilestoneArgon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water Injection
Started8284
Completed8284
Not completed00

Outcome measures

PrimaryNumber of Participants With Rebleeding

Rebleeding was observed for a 30-day study period. One or more the following criteria were considered as evidence of recurrent bleeding: aspiration of fresh blood from a nasogastric or orogastric tube; pulse rate over 100 beats per minute; a drop in systolic blood pressure exceeding 30 mmHg; or continue coffee ground emesis or melena with a decline in hemoglobin of at least 2g/dL.

Time frame:
up to 30 days
Reported as:
Count of participants · Participants
Number of Participants With Rebleeding
ParticipantsArgon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water Injection
Number of Participants With Rebleeding34
SecondaryMortality

all-cause deaths were recorded.

Time frame:
up to 30 days
Reported as:
Count of participants · Participants
Mortality
ParticipantsArgon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water Injection
Mortality01
SecondarySurgery or Arterial Embolization

need for surgery or arterial embolization

Time frame:
up to 30 days
Reported as:
Count of participants · Participants
Surgery or Arterial Embolization
ParticipantsArgon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water Injection
Surgery or Arterial Embolization01

Adverse events

Collected over 30 days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Argon Plasma Coagulation Plus Distilled Water Injection0/82 (0%)1/82 (1.2%)0/82 (0%)
Hemoclipping Plus Distilled Water Injection1/84 (1.2%)1/84 (1.2%)0/84 (0%)
Most frequent serious events
Most frequent serious events
EventArgon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water Injection
procedure-induced bleedingGastrointestinal disorders1/821/84
perforationGastrointestinal disorders0/820/84
strictureGastrointestinal disorders0/820/84

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Argon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water InjectionTotal
<=18 years000
Between 18 and 65 years202545
>=65 years6259121
Age, Continuous
Age, Continuous(years)Argon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water InjectionTotal
Mean67.9 ± 10.966.0 ± 12.567.0 ± 11.7
Sex: Female, Male
Sex: Female, Male(Participants)Argon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water InjectionTotal
Female312253
Male5162113
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Argon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water InjectionTotal
American Indian or Alaska Native000
Asian8284166
Native Hawaiian or Other Pacific Islander000
Black or African American000
White000
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Argon Plasma Coagulation Plus Distilled Water InjectionHemoclipping Plus Distilled Water InjectionTotal
Taiwan8284166
08

Study locations

1 site
  • Division of Gastroenterology and Hepatology, Department of Internal Medicine
    Kaohsiung, 81362, Taiwan
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 23, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04366583
Lead sponsor
Kaohsiung Veterans General Hospital.
Responsible party
Huay-Min Wang (Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital.) — Principal investigator
First posted
Apr 29, 2020
Start date
Feb 9, 2012
Primary completion
Feb 28, 2016
Completion
Apr 25, 2016
Results posted
Oct 22, 2020
Last update
Dec 23, 2020

Study contacts

Wen-Chi Chen, MD
study director · Kaohsiung Veterans General Hospital.

Oversight

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

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This study is completed, as verified in Nov 2020. You cannot join it, but the record below documents what was studied.

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