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HealthyPhase 1NCT05976737

Bioequivalence Study of Entacapone,Levodopa and Carbidopa Tablets in Healthy Chinese Subjects

A Phase 1 study testing Test (T) Entacapone,Levodopa and Carbidopa Tablets (II) and Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II) in people with Healthy, run by The Affiliated Hospital of Qingdao University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In this trial, 32 healthy subjects are planned to be enrolled in fasting and 36 healthy subjects are planned to be enrolled in postprandial, and the fasting and postprandial trials will be randomized separately. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Test (T) Entacapone,Levodopa and Carbidopa Tablets (II) and Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
68 participants
Where
No sites listed yet
Study dates
17 Aug 2023to 12 Jul 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 1. Voluntarily sign an informed consent form before the trial and fully understand the content, process and possible adverse effects of the trial; 2. Ability to complete research in accordance with the requirements of the pilot program; 3. The subject is willing to be free of pregnancy, sperm or egg donation and to voluntarily use effective contraception from the time of signing (female subject has used effective contraception for 14 days prior to the first dose of the drug) to 6 months after the last dose of the drug; 4. Healthy male and female subjects aged 18 years or older (including 18 years of age); 5. Male subjects weighed no less than 50.0 kg and female subjects weighed no less than 45.0 kg, with a body mass index in the range of 19.0 to 28.0 kg/m2 (including threshold values).
  • -

Who cannot join

  • History of serious medical conditions such as cardiac, hepatic, renal, gastrointestinal, neurological, endocrine, respiratory, and psychiatric abnormalities, which are deemed inappropriate for the participant by the study physician;
  • Abnormalities judged by the clinician to be clinically significant, including physical examination, vital signs examination, electrocardiogram, or clinical laboratory tests;
  • Previous or existing postural hypotension or morning dizziness;
  • Those with bile duct obstruction or a history of bile duct obstruction, or those with narrow-angle glaucoma, chronic open-angle glaucoma, ischemic heart disease, or myocardial infarction disease or history;
  • Previous or existing suspicious and undiagnosed skin lesions or a history of melanoma;
  • Those with a history of malignant nerve blocker syndrome (NMS) and/or non-traumatic rhabdomyolysis;
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  • Persons with a history of specific allergies (asthma, etc.) or current allergic diseases (hives, eczema, etc.), or allergies (e.g., persons allergic to two or more medications, foods such as milk, or pollen), or known allergies to carbidopa, levodopa, entacapone, or any of the drug components;
  • Those with dysphagia or any history of gastrointestinal disorders that interfere with drug absorption (e.g., gastric or small bowel resection, atrophic gastritis, peptic ulcer, gastrointestinal bleeding, obstruction, etc.);
  • Female subjects who are pregnant, breastfeeding, or have a positive pregnancy test result
  • Those who are positive for any one or more of Hepatitis B Surface Antigen, Hepatitis C Antibody, HIV Antibody, or Syphilis Antibody;
  • History of substance abuse within five years, or drug use within three months prior to screening, or positive urine drug screen;
  • Those who consumed an average of more than 14 units of alcohol (1 unit = 360 milliliter of beer or 45 milliliter of spirits with 40% alcohol by volume or 150 milliliter of wine) per week in the 3 months prior to screening, or those who were unable to stop their alcohol intake from 24h prior to dosing until the end of the trial, or those who had a positive breath test for alcohol;
  • Those who smoked an average of more than 5 cigarettes per day in the 3 months prior to screening or those who refused not to use tobacco products during their stay;
  • History of surgical procedure within 3 months prior to screening or planned surgery during the study period;
  • Those who have donated blood or lost a significant amount of blood (>400milliliter, except for physiologic blood loss in females) within 3 months prior to the first dose, or those who have donated ≥2 therapeutic doses of platelets within 1 month;
  • Participation in a clinical trial of any drug and taking the drug within 3 months prior to the first dose;
  • The use of nonselective monoamine oxidase inhibitors (e.g., phenelzine and antiphencyclidine), tricyclic antidepressants, dopamine D2 receptor antagonists (e.g., phenothiazines and risperidone), and isoniazid, phenytoin, and iron salts, metoclopramide, capnography interfering with bile duct excretion, chylomicrons, and small intestinal-glucuronidase (e.g., propoxur and erythromycin), in the 30 days prior to the first dose of the drug, rifampicin and chloramphenicol), pyridoxine, highly protein-bound drugs (e.g., warfarin, salicylic acid, prednisone, and disulfiram), CYP2C9 inhibitors (e.g., amiodarone, cimetidine, isoniazid), and CYP2C9 inducers (e.g., barbiturates, dexamethasone, ritonavir);
  • Those who received a live attenuated vaccine within 14 days prior to the first dose, or who received a live attenuated vaccine during a planned trial;
  • Those who have taken any prescription medication within 14 days prior to the first dose;
  • Those who have taken any over-the-counter medications, herbs, or supplements within 7 days prior to the first dose;
  • Anyone who has taken a special diet (e.g., grapefruit and products containing grapefruit), or any food or beverage rich in caffeine or xanthines (e.g., coffee, tea, chocolate, cocoa, milk tea, etc.), or who has been subjected to strenuous physical activity, or any other factor that affects the absorption, distribution, metabolism, or excretion of the drug in the 48h prior to the first dose of the drug;
  • Those who have difficulty collecting blood from a vein or have a history of needle and blood sickness;
  • Those who have special dietary requirements or are unable to comply with the uniform rules of the clinical research center;
  • Subjects who are unable to participate in the trial for their own reasons;
  • Subjects judged by other investigators to be unsuitable for participation. -

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Single-Center, Open, Randomized, Single-Dose, Completely Repeated Crossover Bioequivalence Study to Evaluate the Effects of the Test/Reference Preparation, Entacapone,Levodopa and Carbidopa Tablets (II) in Healthy Adult Subjects

In this trial, 32 healthy subjects are planned to be enrolled in fasting and 36 healthy subjects are planned to be enrolled in postprandial, and the fasting and postprandial trials will be randomized separately. According to the randomization table, subjects will be randomly assigned to one of the two groups (Group A: TRTR, Group B: RTRT). The washout period (dosing interval) between doses will be at least 5 days. Taking the washout period of 5 days as an example, all subjects will take the corresponding medication according to the randomization table on day 1 of the first cycle trial, day 6 of the second cycle trial, day 11 of the third cycle trial, and day 16 of the fourth cycle trial.

Conditions
Healthy
Being tested
Test (T) Entacapone,Levodopa and Carbidopa Tablets (II), Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II)

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Test (T) Entacapone,Levodopa and Carbidopa Tablets (II)Drug

    Specification:Levodopa 100mg, Carbidopa 25mg, Entacapone 200mg(Abbreviation: 100mg/25mg/200mg). Produced and supplied by Qilu Pharmaceutical Co.

  • Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II)Drug

    Specification:Levodopa 100mg, Carbidopa 25mg, Entacapone 200mg(Abbreviation: 100mg/25mg/200mg). Supplied by Qilu Pharmaceutical Co.

Study groups in NCT05976737
Study groupRoleWhat they receive
Fasting stateExperimentalIn this trial, 32 healthy subjects are planned to be enrolled in fasting. According to the randomization table, subjects will be randomly assigned to one of the two groups (Group A: TRTR, Group B: RTRT). The washout period (dosing interval) between doses will be at least 5 days. After fasting for at least 10 hours, subjects were given either the test formulation (T) Entacapone, Levodopa and Carbidopa Tablets (II) or the reference formulation (R) Entacapone,Levodopa and Carbidopa Tablets (II) in 240 milliliter (mL) of warm water. 1 tablet 100mg/25mg/200mg orally per cycle.
Receives: Drug: Test (T) Entacapone,Levodopa and Carbidopa Tablets (II); Drug: Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II)
Fed stateExperimentalIn this trial, 36 healthy subjects are planned to be enrolled in postprandial. According to the randomization table, subjects will be randomly assigned to one of the two groups (Group A: TRTR, Group B: RTRT). The washout period (dosing interval) between doses will be at least 5 days. After fasting for at least 10 hours, subjects were given a high-fat, high-calorie meal 30 minutes prior to dosing, which was completed within 30 minutes. 30 minutes after the start of the meal, the test formulation (T) Entacapone,Levodopa and Carbidopa Tablets (II) or the reference formulation (R)Entacapone,Levodopa and Carbidopa Tablets (II) were administered in 240 milliliter of warm water. Take 1 tablet 100mg/25mg/200mg orally per cycle.
Receives: Drug: Test (T) Entacapone,Levodopa and Carbidopa Tablets (II); Drug: Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Peak Plasma Concentration (Cmax)

    Evaluation of Peak Plasma Concentration (Cmax)

    Measured: 10hours

  2. Area under the plasma concentration versus time curve (AUC0-t)

    Area under the drug concentration-time curve from time 0 to the last accurately measurable concentration at sample collection time t

    Measured: 10hours

  3. Area under the plasma concentration versus time curve (AUC0-∞)

    Area Under the Plasma Drug Concentration-Time Curve from Time 0 to Infinite Time

    Measured: 10hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Aug 2023
  2. Study start17 Aug 2023 (estimated)
  3. Primary completion7 Sep 2023 (estimated)
  4. Study completion12 Jul 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
68 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05976737
Sponsor's protocol ID
QLG1114-01
Status last verified
Jul 2023
First submitted
26 Jul 2023
Last updated
4 Aug 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Test (T) Entacapone,Levodopa and Carbidopa Tablets (II) and Reference (R) Entacapone,Levodopa and Carbidopa Tablets (II) in people with Healthy, run by The Affiliated Hospital of Qingdao University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 25 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 4 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Yu Cao (18661809090, caoyu1767@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Peak Plasma Concentration (Cmax) (time frame: 10hours). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Aug 2023.

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