Bioequivalence of Two Formulations of Levothyroxine Sodium 200 Micrograms (mcg) Under Tablet Form

September 4, 2020 updated by: Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany

A Prospective, Single Dose, Randomized, Open-label, Crossover, Comparative Study to Establish Bioequivalence in Healthy Subjects Between the Puran T4® (Sanofi Aventis Farmacêutica Ltda) vs. the New Formulation of Levothyroxine (Eutirox NF® Merck) Administered Orally as 3 Tablets of 200 μg

The study was to verify if the test formulation of Levothyroxine sodium presents an equivalent rate and extension of absorption to the comparator formulation when administered with the same dosage and under fasting conditions and after baseline correction concentrations.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
72

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
      • Aparecida de Goiânia, Brazil
        • Instituto de Ciências Farmacêuticas de Estudos e Pesquisas

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • To have freely agreed and signed the consent form, after all essential elements of the protocol have been clarified, before any procedure
  • Body Mass Index (BMI) of the research participants must be comprised within the range of 18.50 to 27.00
  • No abnormal findings on medical history that, in the opinion of the investigator, constitutes a risk or a contraindication for the participation of the participant in the study or that could interfere with the study objectives, conduct or evaluation
  • Normal vital signs: heart rate between 50 and 100 beats per minute; Systolic pressure between 80 and 129 millimeters of mercury (mmHg); diastolic pressure between 50 and 89 mmHg; temperature between 36.0 and 37.0 degrees Celsius
  • Electrocardiogram (ECG) normal (abnormalities, even if clinically not relevant, are not permitted [example {e.g.}: PR, QRS, QT, QTcF] should be within normal range, no conduction abnormalities etcetera [etc.])
  • All values for biochemistry and hematology tests of blood and urine within the normal range or showing no clinically relevant deviation as judged by the Investigator
  • Other protocol defined inclusion criteria could apply

Exclusion Criteria:

  • Supplementary tests results out of the values considered as normal, unless considered clinically irrelevant
  • Research participants who are submitted to surgery before the beginning of the study will be carefully evaluated by the doctor regarding the enrollment in the study complying to an exclusion period ranging from 4 to 8 weeks
  • Positive test for hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) in pre-study tests
  • Participants with a history of hypersensitivity/allergy to study drug or excipients, history or presence of asthma or any serious allergy (requiring hospitalization or prolonged systemic treatment), any food allergy or intolerance which in the opinion of the Investigator represents a safety risk (e.g., iodine allergy, etc.)
  • Has participated in any experimental trial or has taken any experimental drug within 6 months previous to this study (RDC [resolution of the collegiate board] Resolution 34, dated June 3, 2008)
  • Participants that prior to the dosing takes any other medication and had not passed at least seven half-lives of elimination of the drug, in this case, be considered by the Principal Investigator the non-inclusion of the participant in the study. Participants taking medications known to affect thyroid hormone metabolism, e.g., oral contraceptives, hormonal implants, parenteral hormones, anabolic steroids, androgens, etc., or the bioavailability of levothyroxine like proton pump Inhibitors
  • Has a history of alcohol abuse or has ingested alcohol 24 hours previous to the hospitalization period
  • Other protocol defined exclusion criteria could apply

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

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: First Puran T4®, then Eutirox®
Participants received single oral dose of Puran T4® 600 micrograms (mcg) (3 tablets of 200 mcg Levothyroxine sodium) in Treatment Period 1 followed by single oral dose of Eutirox® 600 mcg (3 tablets of 200 mcg Levothyroxine sodium) in Treatment Period 2 under fasting conditions. A wash-out period of 70 days was maintained between the Treatment Periods 1 and 2.
Drug: Puran T4®
Participants who received a single oral dose of Puran T4® 600 mcg tablets (3 tablets of 200 mcg Levothyroxine sodium) in either Treatment Period 1 or 2 under fasting conditions.
Drug: Eutirox®
Participants who received a single oral dose of Eutirox® 600 mcg tablets (3 tablets of 200 mcg Levothyroxine sodium) in either Treatment Period 1 or 2 under fasting conditions.
Experimental: First Eutirox®, then Puran T4®
Participants received single oral dose of Eutirox® 600 mcg (3 tablets of 200 mcg Levothyroxine sodium) in Treatment Period 1 followed by single oral dose of Puran T4® 600 mcg (3 tablets of 200 mcg Levothyroxine sodium) in Treatment Period 2 under fasting conditions. A wash-out period of 70 days was maintained between the Treatment Periods 1 and 2.
Drug: Puran T4®
Participants who received a single oral dose of Puran T4® 600 mcg tablets (3 tablets of 200 mcg Levothyroxine sodium) in either Treatment Period 1 or 2 under fasting conditions.
Drug: Eutirox®
Participants who received a single oral dose of Eutirox® 600 mcg tablets (3 tablets of 200 mcg Levothyroxine sodium) in either Treatment Period 1 or 2 under fasting conditions.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Baseline Corrected Maximum Observed Plasma Concentration (Cmax[Adj]) of Levothyroxine Sodium
Time Frame: Pre-dose, 24, 36, 48 and 72 hours post-dose
Cmax was obtained from plasma concentration time curve. Maximum plasmatic concentration observed adjusted by basal level correction was reported.
Pre-dose, 24, 36, 48 and 72 hours post-dose
Baseline Corrected Area Under The Plasma Concentration-time Curve From Time Zero to 72 Hours (AUC0-72 [Adj]) of Levothyroxine Sodium
Time Frame: Pre-dose, 24, 36, 48 and 72 hours post-dose
The AUC 0-72 was defined as the area under the plasma concentration versus time curve from time zero (pre-dose) to 72 hours post-dose. Area under the plasma curve from time 0 hours to time 72 hours adjusted by basal levels correction was reported.
Pre-dose, 24, 36, 48 and 72 hours post-dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time to Reach Maximum Plasma Concentration (Tmax) of Levothyroxine Sodium
Time Frame: Pre-dose, 24, 36, 48 and 72 hours post-dose
Tmax was obtained from plasma concentration time curve.
Pre-dose, 24, 36, 48 and 72 hours post-dose
Area Under the Plasma Concentration-time Curve From Time Zero to 72 Hours (AUC 0-72) of Levothyroxine Sodium
Time Frame: Pre-dose, 24, 36, 48 and 72 hours post-dose
The AUC 0-72 was defined as the area under the plasma concentration versus time curve from time zero (pre-dose) to 72 hours post-dose.
Pre-dose, 24, 36, 48 and 72 hours post-dose
Maximum Observed Plasma Concentration (Cmax) of Levothyroxine Sodium
Time Frame: Pre-dose, 24, 36, 48 and 72 hours post-dose
Cmax was obtained from plasma concentration time curve.
Pre-dose, 24, 36, 48 and 72 hours post-dose

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany

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.

Helpful Links

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 25, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 11, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 11, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 26, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 26, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 30, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 29, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 4, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2020

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MS200125_0014

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

Per company policy, following approval of a new product or a new indication for an approved product in both the EU and the US, Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany, will share study protocols, anonymized patient level and study level data and redacted clinical study reports from clinical trials in patients with qualified scientific and medical researchers, upon request, as necessary for conducting legitimate research. Further information on how to request data can be found on our website https://www.merckgroup.com/en/research/our-approach-to-research-and-development/healthcare/clinical-trials/commitment-responsible-data-sharing.html

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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