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OpenTrials
Completed

NCT Number: NCT01399788

A Bioequivalence Study Comparing A Fixed Dose Combination Formulation Of Myrin P Forte That Contains Rifampicin, Isoniazid, Ethambutol And Pyrazinamide Per Tablet To An Equivalent Dose Of Single Drug Reference Preparations Of Similar Combination Following Oral Administration In Healthy Adults

This is a bioequivalence trial to evaluate the bioequivalence of Myrin P Forte against reference drug in healthy volunteers.

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Key information

Conditions

Healthy Volunteers

Age range

21 year–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Pfizer Investigational Site

Singapore, 188770

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy, male or female, 21 to 55 years of age, body weight no less than 55 kg, Body mass index (BMI) of 17.5 to 30.5 kg/m2. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead electrocardiogram (ECG) or clinical laboratory tests.
  • An informed consent document signed and dated by the subject.
  • Subjects who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, and other study procedures.

Exclusion criteria

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing), positive Hepatitis B surface antigen or Human Immunodeficiency Virus (HIV) serology results.
  • pregnant or nursing female,
  • alcohol, drug, smoke user,
  • sensitive to any study medication or related component,
  • History or active gout,
  • History or active tuberculosis,
  • Known optic neuritis or other ophthalmological conditions.

Treatment and study plan

Myrin P Forte

Drug

Tablet containing Rifampicin, Isoniazid, Ethambutol and Pyrazinamide, given once daily, single dose

Single drug references

Drug

containing Rifampicin, Isoniazid, Ethambutol and Pyrazinamide as single agents

Primary outcomes

  1. Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hours (hrs) post-dose

    Area under the plasma concentration-time curve from time zero (pre-dose) to the time of last measured concentration (AUClast).

  2. Maximum Observed Plasma Concentration (Cmax)

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hrs post-dose

  3. Dose Normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast[dn]) for Pyrazinamide

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16, 24, 36 and 48 hrs post-dose

    AUClast[dn] = Dose normalized area under the plasma concentration-time curve (AUC[dn]) from time zero (pre-dose) to the time of last measured concentration. It is obtained from AUClast divided by dose and then multiplied by 1500. The test and reference for pyrazinamide were given at different doses, so dose-normalized parameters were used for analysis for adjusting the dose effect on bioequivalence conclusion.

  4. Dose Normalized Maximum Observed Plasma Concentration (Cmax[dn]) for Pyrazinamide

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16, 24, 36 and 48 hrs post-dose

    It is obtained from Cmax divided by dose and then multiplied by 1500. The test and reference for pyrazinamide were given at different doses, so dose-normalized parameters were used for analysis for adjusting the dose effect on bioequivalence conclusion.

Secondary outcomes

  1. Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC[0-∞])

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hrs post-dose

    AUC (0-∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-∞). It is obtained from AUC (0-t) plus AUC (t-∞).

  2. Dose Normalized Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC [0-∞][dn]) for Pyrazinamide

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16, 24, 36 and 48 hrs post-dose

    AUC [0-∞][dn] = Dose normalized area under the plasma concentration versus time curve (AUC[dn]) from time zero (pre-dose) to extrapolated infinite time (0-∞). It is obtained from AUC (0-∞) divided by dose and then multiplied by 1500. The test and reference for pyrazinamide were given at different doses, so dose-normalized parameters were used for analysis for adjusting the dose effect on bioequivalence conclusion.

  3. Plasma Decay Half-life (t1/2)

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hrs post-dose for rifampicin, isoniazid and ethambutol and additional 36 and 48 hrs post-dose for pyrazinamide

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

  4. Time to Reach Maximum Observed Plasma Concentration (Tmax)

    Time frame: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hrs post-dose for rifampicin, isoniazid and ethambutol and additional 36 and 48 hrs post-dose for pyrazinamide

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

An Open Label, Single Dose, 2-Way Cross-Over Randomized Bioequivalence Study Comparing a Fixed Dose Combination Formulation, Myrin®-p Forte, (Contains 150 Mg Rifampicin, 75 Mg Isoniazid, 275 Mg Ethambutol and 400 Mg Pyrazinamide Per Tablet) to an Equivalent Dose of Single Drug Reference Preparations of Rifampicin, Isoniazid, Ethambutol and Pyrazinamide Following Oral Administration in Healthy Adults Under Fasting Conditions

Important dates

Study start
2011
Primary completion
2011
Study completion
2011
First posted
Jul 22, 2011
Registry last updated
Apr 5, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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