The Research of Metabolomics on COPD (COPD)

July 31, 2019 updated by: LuQian Zhou, Guangzhou Institute of Respiratory Disease

The Correlation Research Between the Omega-3 and Omega-6 Inflammatory Metabolites and Stable COPD.

Targeted metabolomics research was conducted on patients with chronic obstructive pulmonary disease (COPD). The correlation analyst between inflammation-related metabolites and lung function was analyzed by explored the metabolic pathways of inflammation-related omega-6 and omega-3 and combining them with lung function.

Study Overview

Detailed Description

Based on the global initiative for chronic obstructive pulmonary disease, the 80 confirmed stable COPD patients with mild-to-moderate were involved, 80 COPD patients with severe and very severe, and age, sex, all matching 40 cases without lung disease. The participants information was collected. Whole blood and pulmonary function were examined at three time points: admission, six months and one year, at the same time, targeted metabolomic analysis method are applied to detect serum metabolites, According to the access to assess the different severity of COPD in the stable period and the level of metabolites in different admission periods. After that, correlation analysis was conducted with pulmonary function indicators and other clinical indicators to observe the research value of inflammation-related metabolites in the development of COPD.

Study Type

Observational

Enrollment (Actual)

200

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Based on the global initiative for chronic obstructive pulmonary disease, the 80 confirmed stable COPD patients with mild-to-moderate were involved, 80 COPD patients with severe and very severe, and age, sex, all matching 40 cases without lung disease. The participants information was collected. Whole blood and pulmonary function were examined at three time points: admission, six months and one year, at the same time, targeted metabolomic analysis method are applied to detect serum metabolites, According to the access to assess the different severity of COPD in the stable period and the level of metabolites in different admission periods.

Description

Inclusion Criteria:

  • COPD diagnosis
  • The age ranges from 40 to 80
  • No other pulmonary diseases
  • No immune-related diseases

Exclusion Criteria:

  • Not consistent with COPD diagnosis
  • Age is out of range
  • Interstitial lung disease, asthma and other lung diseases
  • Immune system diseases
  • Lost to follow-up

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Healthy control
age - and sex-matched healthy individuals without lung disease
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
Patients with mild and moderate COPD
Grading according to the GOLD guide standards
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
This Jaeger lung function instrument of Germany is used to test the pulmonary ventilation function of COPD patients. Since the condition requires drug control and treatment, the drug cannot be stopped.
We used the Agilent 1290 Infinity LC system mass spectrometer to analyze and detect metabolite peaks of patients according to retention time and mass/charge ratio after preliminary experiments and derivatization.
Patients with severe and very severe COPD
Grading according to the GOLD guide standards
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
This Jaeger lung function instrument of Germany is used to test the pulmonary ventilation function of COPD patients. Since the condition requires drug control and treatment, the drug cannot be stopped.
We used the Agilent 1290 Infinity LC system mass spectrometer to analyze and detect metabolite peaks of patients according to retention time and mass/charge ratio after preliminary experiments and derivatization.
The severe and very severe COPD group baseline
Severe and very severe COPD patients were in the baseline time group
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
This Jaeger lung function instrument of Germany is used to test the pulmonary ventilation function of COPD patients. Since the condition requires drug control and treatment, the drug cannot be stopped.
We used the Agilent 1290 Infinity LC system mass spectrometer to analyze and detect metabolite peaks of patients according to retention time and mass/charge ratio after preliminary experiments and derivatization.
The severe and very severe COPD group six months
Patients with severe and very severe COPD were six months from baseline.
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
This Jaeger lung function instrument of Germany is used to test the pulmonary ventilation function of COPD patients. Since the condition requires drug control and treatment, the drug cannot be stopped.
We used the Agilent 1290 Infinity LC system mass spectrometer to analyze and detect metabolite peaks of patients according to retention time and mass/charge ratio after preliminary experiments and derivatization.
The severe and very severe COPD group one year
Patients with severe and very severe COPD were one year from baseline.
Blood routine test results include CRP, PCT, white blood cell count, red blood cell count, neutrophil percentage, eosinophil, basophil, et al.
This Jaeger lung function instrument of Germany is used to test the pulmonary ventilation function of COPD patients. Since the condition requires drug control and treatment, the drug cannot be stopped.
We used the Agilent 1290 Infinity LC system mass spectrometer to analyze and detect metabolite peaks of patients according to retention time and mass/charge ratio after preliminary experiments and derivatization.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Forced expiratory volume in 1 second (FEV1)
Time Frame: October 1, 2016 to October 1, 2018

The FEV1 percentage of predicted value is an important indicator in the diagnosis and treatment of COPD, and plays an important role in the severity rating.

  • level (mild) : FEV1 / FVC < 70%, FEV1% pred > 80%. Ⅱ level (moderate) : FEV1 / FVC < 70%, 50% ≦ FEV1% pred< 80%. Ⅲ level (severe) : FEV1 / FVC < 70%, 30% ≦ FEV1% pred < 50%. IV level (very severe) : FEV1/FVC<70%, FEV1% pred < 30%, or FEV1% pred <50% with chronic respiratory failure.
October 1, 2016 to October 1, 2018
Forced vital capacity (FVC)
Time Frame: October 1, 2016 to October 1, 2018
FVC is an important index to determine the resistance of respiratory tract. FEV1 and FEV1/FVC% in patients with obstructive airway obstruction, such as patients with chronic obstructive pulmonary disease, were reduced due to airway obstruction and prolonged expiratory.
October 1, 2016 to October 1, 2018
FEV1/FVC ratio
Time Frame: October 1, 2016 to October 1, 2018
This index is an important basis for the diagnosis of COPD and is crucial in the early stage of the disease to the later stage of the evaluation.
October 1, 2016 to October 1, 2018
The metabolites of Omega-6 inflammatory indicator
Time Frame: October 1, 2016 to October 1, 2018

Agilent 1290 Infinity LC system (UHPLC, Santa Clara CA) was used for the targeted determination of metabolites in the serum of subjects.

Omega6 metabolites are closely related to inflammation and have been shown to be involved in a variety of diseases such as COPD, rheumatism, cardiovascular disease, et al.

October 1, 2016 to October 1, 2018
The metabolites of Omega-3 inflammatory indicator
Time Frame: October 1, 2016 to October 1, 2018
As an important anti-inflammatory factor, omega-3 is widely used in chronic inflammatory diseases, which can fight against the pro-inflammatory metabolites of omega-6.
October 1, 2016 to October 1, 2018

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
C-reaction protein
Time Frame: October 1, 2016 to October 1, 2018
CRP is an acute phase protein synthesized by liver cells in response to inflammatory stimuli such as microbial invasion or tissue injury. Can reflect the inflammation level in COPD patients.
October 1, 2016 to October 1, 2018
Leukocyte Count
Time Frame: October 1, 2016 to October 1, 2018
White blood cells are very important blood cells in human blood. White blood cells bear many important tasks in the human body. They have the function of swallowing foreign bodies and producing antibodies.
October 1, 2016 to October 1, 2018

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

October 1, 2016

Primary Completion (ACTUAL)

October 1, 2018

Study Completion (ACTUAL)

July 5, 2019

Study Registration Dates

First Submitted

July 29, 2019

First Submitted That Met QC Criteria

July 31, 2019

First Posted (ACTUAL)

August 2, 2019

Study Record Updates

Last Update Posted (ACTUAL)

August 2, 2019

Last Update Submitted That Met QC Criteria

July 31, 2019

Last Verified

July 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • MG-201909

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

In this study, smoking time data were also included. Next, we plan to grade smoking time or sick time(Time from baseline or from the time of first diagnosis) to evaluate the change trend of inflammation-related metabolites.

IPD Sharing Time Frame

We will use the part of data for smoking-related research projects until 2020-06-01.

IPD Sharing Access Criteria

Patients aged 40 to 80 diagnosed with stable COPD according to diagnostic criteria were selected, regardless of gender. No lung tumor, no interstitial lung disease, no immune-related lung disease. The patient himself or his family signed the informed consent for the experiment.

IPD Sharing Supporting Information Type

  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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