A Bioequivalence Study Comparing A Fixed Dose Combination Formulation, Rin 150 And Individual Reference Drugs In Healthy Volunteers

An Open Label, Single Dose, 2-Way Cross-Over Randomized Bioequivalence Study Comparing A Fixed Dose Combination Formulation, Rin 150 (Contains 150 Mg Rifampicin And 75 Mg Isoniazid Per Tablet) To An Equivalent Dose Of Single Drug Reference Preparations Of Rifampicin And Isoniazid Following Oral Administration In Healthy Adults Under Fasting Conditions

This is a bioequivalence study to evaluate the bioequivalence of RIN 150 against individual reference drugs in healthy volunteers.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers
• Intervention / Treatment: Drug: RIN 150; Drug: reference drugs

• Study Type: Interventional
• Enrollment (Actual): 28
• Phase: Phase 1

Contacts and Locations

Study Locations

• Singapore
  • Singapore, Singapore, 188770
    • Pfizer Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 21 years to 55 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy male or female, 21 to 55 years of age, body weight no less than 55 kg, with a signed and dated informed consent document and is 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 HIV serology results;
• Pregnant or nursing female;
• History or active tuberculosis;
• Participated in investigational drug studies within 3 months;
• Used prescription or nonprescription drugs within 7 days or 5 half-lives.

Study Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Test; RIN 150 contains 150 rifampicin and 75 mg isoniazid	Drug: RIN 150; Each subject will receive a single oral dose of 4 fixed dose combination tablets (RIN 150) each contains 150 rifampicin and 75 mg isoniazid.
Active Comparator: Reference; Individual references of rifampicin and isoniazid	Drug: reference drugs; Each subject will receive a single oral dose of 4 x 150 mg rifampicin capsules and 3 x 100 mg isoniazid capsules.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)	Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast) was reported for rifampicin and isoniazid.	0 hour (pre-dose), 0.25, 0.5, 0.75, 1, 1.33 (1 hour 20 minutes), 1.67 (1 hour 40 minutes), 2, 2.33 (2 hours 20 minutes), 2.67 (2 hours 40 minutes), 3, 3.5, 4, 6, 8, 12, 16, 24 hours post-dose on Day 1
Maximum Observed Plasma Concentration (Cmax)	Cmax was reported for rifampicin and isoniazid.	0 hour (pre-dose), 0.25, 0.5, 0.75, 1, 1.33 (1 hour 20 minutes), 1.67 (1 hour 40 minutes), 2, 2.33 (2 hours 20 minutes), 2.67 (2 hours 40 minutes), 3, 3.5, 4, 6, 8, 12, 16, 24 hours post-dose on Day 1

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]	AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞) was reported for rifampicin and isoniazid. It is obtained from AUC (0 - t) plus AUC (t - ∞).	0 hour (pre-dose), 0.25, 0.5, 0.75, 1, 1.33 (1 hour 20 minutes), 1.67 (1 hour 40 minutes), 2, 2.33 (2 hours 20 minutes), 2.67 (2 hours 40 minutes), 3, 3.5, 4, 6, 8, 12, 16, 24 hours post-dose on Day 1
Plasma Decay Half-Life (t1/2)	Plasma decay half life (t1/2) was reported for rifampicin and isoniazid.	0 hour (pre-dose), 0.25, 0.5, 0.75, 1, 1.33 (1 hour 20 minutes), 1.67 (1 hour 40 minutes), 2, 2.33 (2 hours 20 minutes), 2.67 (2 hours 40 minutes), 3, 3.5, 4, 6, 8, 12, 16, 24 hours post-dose on Day 1
Time to Reach Maximum Observed Plasma Concentration (Tmax)	Tmax was reported for rifampicin and isoniazid.	0 hour (pre-dose), 0.25, 0.5, 0.75, 1, 1.33 (1 hour 20 minutes), 1.67 (1 hour 40 minutes), 2, 2.33 (2 hours 20 minutes), 2.67 (2 hours 40 minutes), 3, 3.5, 4, 6, 8, 12, 16, 24 hours post-dose on Day 1

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Participants With Clinically Significant Changes in Vital Signs	Criteria for clinical significant change in vital signs: systolic blood pressure (BP) less than (<) 90 millimeters of mercury (mmHg), diastolic BP <50 mmHg, supine and sitting heart rate <40 beats per minute (bpm) or greater than (>) 120 bpm, standing and erect heart rate <40 bpm or >140 bpm. Maximum change from baseline in systolic BP >=30 mmHg, maximum change from baseline in diastolic BP >=20 mmHg. Participants who met the criteria were reported.	Screening up to Day 2 of intervention period 2
Number of Participants With Laboratory Test Abnormalities	Criteria for laboratory tests abnormalities included: hemoglobin, hematocrit and red blood cells (less than [<] 0.8*lower limit of normal[LLN]); leucocytes (<0.6/ greater than [>] 1.5*limit of reference range [LRR]); platelets (<0.5/>1.75*LRR); neutrophils, lymphocytes (<0.8/>1.2*LRR); eosinophils, basophils, monocytes (>1.2*upper LN [ULN]); bilirubin (>1.5*ULN); aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (>3*ULN); creatinine, urea (>1.3*ULN); fasting glucose (<0.6 />1.5*LRR); uric acid (>1.2*ULN); sodium (<0.95/>1.05*LRR); potassium, calcium, chloride, bicarbonate (<0.9/>1.1*LRR); albumin, total protein (<0.8/>1.2*LRR); creatine kinase (>2.0*ULN); urine red blood cells (RBCs), urine white blood cells (WBCs) (>=20 high-powered field). Total number of participants with any laboratory abnormalities was reported.	Screening up to Day 2 of intervention period 2

Collaborators and Investigators

• Sponsor: Pfizer

Publications and helpful links

Helpful Links

• To obtain contact information for a study center near you, click here.

Study record dates

Study Major Dates

• Study Start: September 1, 2012
• Primary Completion (Actual): October 1, 2012
• Study Completion (Actual): October 1, 2012

Study Registration Dates

• First Submitted: December 12, 2013
• First Submitted That Met QC Criteria: December 12, 2013
• First Posted (Estimate): December 18, 2013

Study Record Updates

• Last Update Posted (Estimate): July 16, 2014
• Last Update Submitted That Met QC Criteria: June 16, 2014
• Last Verified: June 1, 2014

More Information

Terms related to this study

• Keywords: Healthy volunteers; Bioequivalence; RIN 150
• Other Study ID Numbers: B3801003