Population Pharmacokinetic - Pharmacodynamic Models of Chronic Disease Therapeutics for Smokers

NCT ID: NCT05126381

Last Updated: 2023-06-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-01-13

Study Completion Date

2024-04-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Purpose of study: Establishing population pharmacokinetic - pharmacodynamic models of chronic disease therapeutics for smoking patients to investigate the effects of gender, age, body weight, liver function, kidney function, nicotine, polycyclic aromatic hydrocarbon related metabolic enzymes and drug related metabolic enzymes gene polymorphism on steady-state drug concentration and efficacy in chronic smoking patients after taking drugs.

Object of study: Smoking and non-smoking patients taking levamlodipine besylate tablets or metformin sustained-release tablets.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Purpose of study: Establishing population pharmacokinetic - pharmacodynamic modes of chronic disease therapeutics for smoking patients to investigate the effects of gender, age, body weight, liver function, kidney function, nicotine, polycyclic aromatic hydrocarbon related metabolic enzymes and drug related metabolic enzymes gene polymorphism on steady-state drug concentration and efficacy in chronic smoking patients after taking drugs.

Object of study: Smoking and non-smoking patients taking Levamlodipine besylate tablets or metformin sustained-release tablets.

Parameters of study: PK parameters: drug plasma concentration. PD parameters: blood pressure or blood sugar. covariates: Gender, age, height, weight, BMI, liver function (ALT, AST, TP, TBIL), kidney function (Scr, UA, UREA), nicotine plasma concentration, cigarette related metabolic enzyme gene (CYP1A1, CYP1A2) polymorphism and drug-related metabolic enzyme gene (CYP3A4, CYP3A5, MATE1), MARE2, OCT2) polymorphism, etc.

Safety : adverse events occurred during the test.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Chronic Disease Smoking

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Smoker with taking levamlodipine besylate tablets

The subjects are allowed to smoke during the time taking levamlodipine besylate tablets.

Smoking

Intervention Type BEHAVIORAL

The Study contains patients who are allowed to smoke

Non-smoker with taking levamlodipine besylate tablets

The subjects are not allowed to smoke during the time taking levamlodipine besylate tablets.

non-somking

Intervention Type BEHAVIORAL

The Study contains patients who are not allowed to smoke

Smoker with taking metformin sustained-release tablets

The subjects are allowed to smoke during the time taking metformin sustained-release tablets。

Smoking

Intervention Type BEHAVIORAL

The Study contains patients who are allowed to smoke

Non-smoker with taking metformin sustained-release tablets

The subjects are not allowed to smoke during the time taking metformin sustained-release tablets.

non-somking

Intervention Type BEHAVIORAL

The Study contains patients who are not allowed to smoke

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Smoking

The Study contains patients who are allowed to smoke

Intervention Type BEHAVIORAL

non-somking

The Study contains patients who are not allowed to smoke

Intervention Type BEHAVIORAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

According to the selection criteria for non-smokers:

No previous smoking history;Or previous smokers who had quit smoking for more than 6 months prior to enrollment.

A smoker joins the queue by:

1. Have smoked for more than one year (more than one cigarette per day on average and more than six months continuously) and have not quit at present.
2. Agree to smoke cigarettes sold in the market according to the requirements of the program.


1. Age: 18-70 (boundary value included), no gender limitation;
2. Patients who meet one of the following conditions:

① Patients who were previously diagnosed with hypertension, were taking levamlodipine besylate tablets for antihypertensive therapy, and were managed according to hypertensive lifestyle (diet and exercise) for a long time.

② Patients who were previously diagnosed with type 2 diabetes, were taking metformin sustained-release tablets for hypoglycemic treatment, and were managed according to diabetic lifestyle (diet and exercise) for a long time.
3. Fixed dosing regimen was used one month before enrollment, and the regimen could be continued after enrollment.
4. Subjects understand the risks and regulations of the study and can abide by the study protocol, voluntarily participate in the study and sign the informed consent.

Exclusion Criteria

1. Have a history of alcohol abuse (drinking more than 14 units of alcohol per week, 1 unit =350 mL beer or 44 mL 40% alcohol spirits or 150 mL wine) or have a history of alcohol abuse and have been abstinent for less than 3 months.
2. The subject has a history of pathophysiological conditions affecting drug absorption (such as inability to swallow, vomiting, diarrhea, etc.) or gastrointestinal surgery affecting drug absorption.
3. HBsAg, HCV or syphilis antibody tested positive in the past.
4. Pregnant and lactating women.
5. The investigator considers that the subjects are not suitable to participate in this study due to safety or compliance factors.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

The Second Affiliated Hospital of Chongqing Medical University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Yu Xian

Role: PRINCIPAL_INVESTIGATOR

The Second Affiliated Hospital of Chongqing Medical University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Yu Xian

Chongqing, , China

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

China

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Yu Xian

Role: CONTACT

18512356862

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Yu Xian, Doctor

Role: primary

18512356862

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2021LCYJ040

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Material Balance Study of TQ-B3525
NCT05675202 UNKNOWN PHASE1