NCT03725800

Brief Summary

The OCEAN (long-term mOn-antiplatelet drug strategy after perCutanEous coronANy intervention) study is the largest prospective multicenter data base to investigate the long-term incidence and prognosis of the use of agents for antiplatelet-induced GI injury symptoms (AI-GIS) or GI hemorrhage among patients undergoing PCI. The OCEAN study will provide evidence of the long-term incidence and prognosis of use of agents for AI-GIS among patients undergoing PCI. It has the potential to provide an optimal long-term mono-antiplatelet strategy.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2018

Geographic Reach
1 country

8 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 15, 2018

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

October 27, 2018

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 31, 2018

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2019

Completed
Last Updated

October 31, 2018

Status Verified

October 1, 2018

Enrollment Period

12 months

First QC Date

October 27, 2018

Last Update Submit

October 30, 2018

Conditions

Keywords

coronary heart diseasemono-antiplatelet drugantiplatelet-induced gastrointestinal injury symptommedication adherenceprospective observational study

Outcome Measures

Primary Outcomes (1)

  • Antiplatelet-induced Gastrointestinal Injury Symptom(AI-GIS)

    AI-GIS was estimated according to the Gastrointestinal Symptom Rating Scale(GSRS). This scale included a total of 15 evaluation indicators(Abdominal pains、Heartburn、Acid regurgitation、Sucking sensations in the epigastrium、Nausea and vomiting、Borborygmus、Abdominal distension、Eructation、Increased flatus、Decreased passage of stools、Increased passage of stools、Loose stools、Hard Stools、Urgent need for defecation、Feeling of incomplete evacuation). The score for each indicator was determined by intensity, frequency, duration, request for relief, and impact on social performance. A score of 0 indicated no or only transient symptoms. A score of 3 indicated continuous discomfort with impact on all social activities. The total minimum score was 0 points and the total maximum score was 45 points. Higher score represented a worse outcome.

    1 year after PCI

Secondary Outcomes (6)

  • Bleeding Events

    1-1.5 years after PCI

  • Conversion of Antiplatelet Drug

    1-1.5 years after PCI

  • Discontinuation of Antiplatelet Drug

    1-1.5 years after PCI

  • Health Economic Costs

    1-1.5 years after PCI

  • Utilization Rate of GI Protection Drug

    1-1.5 years after PCI

  • +1 more secondary outcomes

Study Arms (3)

Aspirin

Patients(aged ≥18 years) who have undergone PCI between 1 and 1.5 years, currently alive and is using aspirin for mono-antiplatelet therapy.

Clopidogrel

Patients(aged ≥18 years) who have undergone PCI between 1 and 1.5 years, currently alive and is using clopidogrel for mono-antiplatelet therapy.

ASIDE

Patients(aged ≥18 years) who have undergone PCI between 1 and 1.5 years, currently alive and is using ASIDE for mono-antiplatelet therapy.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

OCEAN study is a multicenter, prospective, observational study. The study population will consist of 1000 patients. It will be conducted in 9 centers in China.

You may qualify if:

  • Age ≥18 years
  • Currently alive at 1-1.5 years after PCI
  • Considered by the physician to be suitable for long-term treatment with mono-antiplatelet agents and is currently using a mono-antiplatelet drug (aspirin, clopidogrel, or dihydroxyaluminum aminoacetate-heavy magnesium carbonate-aspirin \[ASIDE\])
  • Provided written informed consent for this study.

You may not qualify if:

  • Refusal to sign the informed consent form
  • Acute coronary syndromes
  • Cerebral thrombosis within 1 month or cerebral hemorrhage within 1 year
  • Hematopathy or non-GI bleeding tendency
  • Allergy to aspirin
  • Severe uncontrolled hypertension (\>180/110 mmHg)
  • Pregnancy or lactation
  • Drug or alcohol abuse
  • Malignant tumor or \<1-year life expectancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

The First People's Hospital of Shunde

Foshan, Guangdong, 510000, China

Location

The Second People's Hospital of Foshan

Foshan, Guangdong, 510000, China

Location

Guangdong General Hospital

Guangzhou, Guangdong, 501080, China

Location

Guangzhou Panyu Central Hospital

Guangzhou, Guangdong, 510000, China

Location

Huadu District People's Hospital of Guangzhou

Guangzhou, Guangdong, 510000, China

Location

The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University

Guangzhou, Guangdong, 510000, China

Location

Guangdong General Hospital

Guangzhou, Guangdong, China

Location

Qingyuan People's Hospital

Qingyuan, Guangdong, 510000, China

Location

MeSH Terms

Conditions

Coronary DiseaseMedication Adherence

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesPatient CompliancePatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Yong Liu, MD,PhD

    Guangdong Cardiovascular Institute,Guangdong General Hospital

    STUDY DIRECTOR
  • Shiqun Chen, MS

    Guangdong Cardiovascular Institute,Guangdong General Hospital

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD

Study Record Dates

First Submitted

October 27, 2018

First Posted

October 31, 2018

Study Start

October 15, 2018

Primary Completion

October 1, 2019

Study Completion

November 1, 2019

Last Updated

October 31, 2018

Record last verified: 2018-10

Locations