J.U. & TAAB
February20, 2010
Prof. (Dr.) Tapan Kumar Pal
Prof. (Dr.) Tapan Kumar Pal
Director
Director
Bioequivalence Study Centre
Bioequivalence Study Centre
Jadavpur University, Kolkata-32
Jadavpur University, Kolkata-32
In collaboration with TAAB Biostudy Services
In collaboration with TAAB Biostudy Services
2.
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February20, 2010
Main requirements
Main requirements
Protocol.
Institutional Ethical Commeittee Clearance.
No objection certificate from DCGI/or Regulators body.
Volunteers.
Clinical Pharmacology Unit (CPU).
Analytical Unit.
Data handling and interpretation.
Quality assurance of all operations in the centre.
Documented standard operating procedure.
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Protocol
Protocol
Objective
Study Design
Details of Test and Reference samples
Washout period
Inclusion criteria and Exclusion criteria of volunteers
Blood sampling schedule
Plasma Analysis (By HPLC or LCMS/MS)
In-vitro Dissolution Study
Statistical Analysis [ Evaluation of pharmacokinetic parameters (Cmax , Tmax , AUC 0-t & AUC 0-, )]
Compilation
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Pre Study Data for BA/BE Study
Pre Study Data for BA/BE Study
BIOEQUIVALENCE / BIOAVAILABILITY STUDY
Volunteer’s Name: …………………………………………………
Volunteer’s No. ………..….
Age
(yrs)
Sex
M
Height
(cms)
Weight
(Kg)
VITAL SIGNS
Pulse (bpm)
Systolic Blood Pressure (Mm Hg)
Diastolic Blood Pressure (Mm Hg)
Temperature (o
f)
Respiratory Rate (per minute)
PEFR (L)
PRE STUDY DATA
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Pre Study Data for BA/BE Study Cont…
Pre Study Data for BA/BE Study Cont…
MEDICAL HISTORY:
SURGICAL HISTORY: H/O ALLERY:
FAMILY HISTORY:
Has the volunteer participated in any drug trail before? Yes No
If yes, Date on which volunteer last participated in study:
90 day clearance since last study:
Have any problem occurred in previous study:
If yes, specify:
PHYSICAL EXAMINATION
GENERAL APPEARANCE
CARDIOVASCULAR SYSTEM
RESPIRATORY SYSTEM
GASTROINTESTINAL SYSTEM
PRE STUDY DATA Cont…
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CENTRAL NERVOUS SYSTEM
MUSCULOSKELETAL SYSTEM
ECG
CHEST X-RAY
HIV TEST Negative Positive
AUSTRALIA ANTIGEN Negative Positive
PHYSICAL EXAMINATION
Pre Study Data for BA/BE Study Cont…
Pre Study Data for BA/BE Study Cont…
Signature
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February20, 2010
Adverse Event Sheet
Adverse Event Sheet for BA/BE Study
for BA/BE Study
BIOEQUIVALENCE / BIOAVAILABILITY STUDY
Volunteer’s Name: …………………………………………………Volunteer’s No. ………..….
ADVERSE EVENT SHEET (TO BE FILLED IN BY THE VOLUNTEER)
ADVERSE EVENT ADVERSE EVENT ADVERSE EVENT
GIDDINESS DOUBLE VISION REDNESS OF EYES
DROWISINESS DISCOLORED
VISION
HEARING
IMPAIRMENT
FAINTING DARK SPOTS RINGING IN EARS
LIGHT
HEADEDNESS
LIGHT
INTOLERANCE
VERTIGO
HEADACHE WATERING OF
EYES
SNEEZING
BLURRING ITCHING IN EYES NASAL
CONGESTION
COLORED VISION DRYNESS OF EYES COLD
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ADVERSE EVENT ADVERSE EVENT ADVERSE EVENT
COUGH URINARY
RETENTION
MUSCLE CRAMPS
DRYNESS OF
MOUTH
BURNING
MICTURATION
TREMORS
SKIN RASH DARK URINE TWITCHING
URTICARIA PAIN IN ABDOMEN WEAKNESS
ITCHING NAUSEA JOINT PAIN
PALPITATION VOMITTING NO SLEEP
DIFFICULTY
BREATHING
ALTERED TASTE EXCESSIVE SLEEP
CHEST PAIN DIARRHEA ANY OTHER
FEQUENT
URINATION
HYPERACIDITY
Adverse Event Sheet
Adverse Event Sheet for BA/BE Study Cont….
for BA/BE Study Cont….
ADVERSE EVENT SHEET Cont….
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Adverse Event Sheet
Adverse Event Sheet for BA/BE Study Cont….
for BA/BE Study Cont….
SERIOUS ADVERSE EVENT REPORTING
Record all adverse events or any new illness developing during the study
period whether related to the study drug or not. Also record worsening of
preexisting illness, if any. If adverse event is a diagnostic entity, state its
name and NOT individual symptoms. Use one column for each adverse
event. Tick [√] as appropriate.
Adverse event (describe)………………………………………………………………………………………………………………………
Date of onset. (dd/mm/yy) …………………………
Time of onset after the consumption of the drug……
Intensity : Mild Moderate Severe
Outcome of
Adverse Event :
Unknown Still Present Cleared Permanentdisability Death
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Adverse Event Sheet
Adverse Event Sheet for BA/BE Study Cont….
for BA/BE Study Cont….
Most likely cause
of even
Uncertain
Study drug
Disease under study
New illness
Pre-existing illness
Concomitant drugs
Fatal or permanently disabling
Required in patient hospitalization
Or prolongation in hospitalization
Life threatening
Involved a congenital anomaly
Cancer or overdose
If adverse event is one of the following (tick box), notify immediately.
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Clinical Examination Data
Clinical Examination Data for BA/BE Study
for BA/BE Study
BIOEQUIVALENCE / BIOAVAILABILITY STUDY
CLINICAL EXAMINATION DATA
Volunteer’s Name: …………………………………………………Volunteer’s No. ………..….
Total Count W.B.C. Normal: 4500-11000/C mm
Differential
Count
Neutrophils Normal: 60-70 %
Monocytes Normal: 3-6 %
Basophil Normal: 0-1 %
Lymphocytes Normal: 20-35 %
Eosinophil Normal: 1-4 %
Hemoglobin % Normal for male: 14-18 G/ml
Blood Sugar Normal fasting: 76-110 mg/dl
Urea Normal serum/plasma: 14-50
mg/dl
Total Protein Normal:6-8 g/dl
Bilirubin Direct Normal: upto 0.2 mg/dl
Total Normal: upto 1.0 mg/dl
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SGPT Normal: upto 40IU/L at 37ºC
Plasma
Protein
Albulin Normal: 3.7 to 5.3 g/dl
Globulin Normal: 2.3 to 3.6 g/dl
A/G Ratio Normal: 1 to 2.3
Alkaline Phosphate Normal : 100 to 250 IU/L
Australian Antigen (Hbs AG) Normal : Negative
HIV Normal : Negative
VDRL Normal: Non reactive
Creatinine
Cholesterol
Na+
K+
Urine R/E
Clinical Examination Data for BA/BE Study Cont…..
Clinical Examination Data for BA/BE Study Cont…..
CLINICAL EXAMINATION DATA
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February20, 2010
Composition of Institutional Ethical Committee (IEC)
Composition of Institutional Ethical Committee (IEC)
SL.NO.
Name Status
1. Prof. (Dr.) S. Dutta, Pro-Vice Chancellor
Jadavpur University; Kolkata – 700 032.
Chairman
2. Prof. Subrata Pal, School of Bioscience & Engineering,
Jadavpur University; Kolkata – 700 032.
Convener
3. Prof. (Dr.) T.K. Pal, Professor, Pharmaceutical Technology,
Jadavpur University; Kolkata – 700 032
Joint
Convener
4. Prof. (Dr.) Sujata Ghosh Dastidar, Ex-Prof. Pharmaceutical Technology,
Jadavpur University, Kolkata – 700 032.
Member
5. Prof. H.K. Deb, Orthopedic Surgeon
91, Ekdalia Road, Kolkata – 700 019
Member
6. Prof. (Dr.) S.N. Banerjee, Special Secretary (Medical Education),
Department of Health & Family Welfare, Govt of West Bengal,
Swastha Bhavan, GN – 29, Salt Lake City, Sector – V; Kolkata –91
Member
7. Mr. Shovan Lal Hazra
Retained Lawyer, Law Cell, Jadavpur University; Kolkata – 700 032.
Law
Officer
8. Prof. (Dr.) Suchita Ghosh
Professor, International Relations, Jadavpur University, Kolkata – 700 032.
Social
Worker
9. Prof. (Dr.) Krishnangshu Ray
Director, School of Tropical Medicine, C.R.Avenue, Kolkata – 700 073
Clinical
Pharmacologist
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February20, 2010
No objection certificate from DCGI/or Regulators body
No objection certificate from DCGI/or Regulators body
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February20, 2010
Informed Consent form
Informed Consent form
INFORMED CONSENT FORM TO PARTICIPATE IN A
INFORMED CONSENT FORM TO PARTICIPATE IN A
BIOEQUIVALENCE / BIOAVAILABILITY STUDY
BIOEQUIVALENCE / BIOAVAILABILITY STUDY
Study Title:………………………………………………………………………………………………………...
Study Number:……………………
Subject’s Initials: …………………. Subject’s Name…………………………………………………………..
Date of Birth / Age: ………………
1
I confirm that I have read and understood the information sheet dated ___
for the above study and have had the opportunity to ask questions.
[ ]
2
I understand that my participation in the study is voluntary and that I am
free to withdraw at any time, without giving any reason, without my
medical care or legal rights being affected.
[ ]
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February20, 2010
3
I understand that the Sponsor of the study, others working on the
Sponsor’s behalf, the Ethics Committee and the regulatory authorities
will not need my permission to look at my health records both in respect
of the current study and any further research that may be conducted in
relation to it, even if I withdraw from the trial. I agree to this access.
However, I understand that my identity will not be revealed in any
information released to third parties or published.
[ ]
4
I agree not to restrict the use of any data or results that arise from this
study provided such a use is only for scientific purpose(s)
[ ]
5 I agree to take part in the above study. [ ]
6
I…………………………………………………………………………………………
………………….………….. the undersigned voluntarily agree to take part
in, the study: titled as: Bioequivalence of
…………………………………………………………………………………………
……………………...……………….I understand tat the investigation will
involve the oral administration of …………………………..……… X …..….
on ……… study days in …....... dosing sessions at the interval of …….
days.
[ ]
7
I have been given a full explanation by the member of the study team, of
the nature, purpose and likely duration of the study and what I will be
expected to do and I have been advised about my discomfort and
possible ill effects on any health or well being which he believes may
result.
[ ]
Informed Consent form cont…….
Informed Consent form cont…….
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8
I further understand that 10 – 14 nos. blood samples of 5ml each will
be withdrawal during the study period of Phase I and Phase II.
[ ]
9
I understand that compensation/or treatment (s) available to me in the
event of trial related injury / adverse effects
[ ]
10
I am happy with the arrangement and compensation for participating
in this study.
[ ]
Informed Consent form cont…….
Informed Consent form cont…….
Signature (or Thumb impression) of the Subject/Legally Acceptable Representative:____________
Date: _____/_____/____
Signatory’s Name: ____________________________________
Signature of the Investigator: ____________________________ Date: _____/_____/____
Study Investigator’s Name: __________________________________________________
Signature of the Witness ______________________ Date:_____/_____/_____
Name of the Witness: _______________________________________________________
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February20, 2010
Volunteers
Volunteers
VOLUNTEER’S PROFILE
Subjects should be adult, human, healthy male volunteers (18 to 40 years of age) selected from
the panel of volunteers. Volunteers should be screened for inclusion in the study within 21 days
before the commencement of the study.
SCREENING TESTS
The screening examination includes complete physical and clinical examination, including
various biochemical and hematological tests.
INCLUSION CRITERIA
Normal ECG , Normal blood pressure and heart rate as measured after resting supine for three
minutes. Normal B.P is taken to be 100 to 150 mm Hg systolic and 50 to 90 mm Hg diastolic
supine. Normal heart rate is taken to be 50 to 90 beats per minute.
EXCLUSION CRITERIA
Clinically relevant abnormalities in physical and/or the results of the screening tests, Abnormal
ECG, History of alcohol / drug abuse / smoking.
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Clinical Pharmacology Unit (CPU)
Clinical Pharmacology Unit (CPU)
Clinical pharmacological unit having requisite infrastructural facilities as well as the state-of-the art instrumental support.
There are provisions to accommodate 24 healthy human volunteers at a time in the cozy air-conditioned CPU.
Composition of Clinical Pharmacology Unit
Name Qualification Training and Experience Responsibility
Prof. (Dr.) T.K.Pal MChE, PhD, DAAD Fellow
(Germany), VDI Germany,
Director, Bioequivalence
Study Centre
33 yrs experience as a
Professor of Pharm Tech, J.U.
& 6 yrs Experience in BA/BE
Study
[1]. Scheduling of Study & co-
ordination with
industry/overall monitoring of
CPU
[2]. Documentation and
storage of drugs
Dr. T.K.Chattaraj MBBS, MD (Pharmacology) 6 yrs experience in CT &
BA/BE Study
[1]. Overall supervision
[2]. Clinical Management &
informed consent
[3]. Supervision of blood
withdrawal
[4]. Adverse effect
management
Dr. Balaram Ghosh MBBS, MD, Dip. In Clinical
Research
3 yrs experience in CT &
BA/BE Study
[1]. Physical Check up
[2]. Volunteers screening
[3]. Supervision of BA/BE
study
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February20, 2010
Name Qualification Training and Experience Responsibility
Mr. Dilip Das Pathological Technician having
DMLT certificate
25 yrs experience in different
Pathological Labs
1. Blood withdrawal, plasma
separation and recording ; 2.
Transporting the samples to
Analytical Labs
Miss Sutapa Adhikary Passed AMN Trained from
Krishtio Sevaniketan, (Govt. of
West-Bengal)
10 yrs experience as a Nurse 1. Blood withdrawal, nursing
support to the volunteers ; 2. Food
Management3. Helping Clinical
Management
Mr. Tapas Pal B.Sc 2 yrs experience in CPU 1. coordinating volunteers,
Doctors, Staffs/Record keeping2.
Arrangement of sample
transportation
Mr. Ratan Gupta H.S. 5 yrs experience in CPU 1. Volunteers management ; 2.
Physical arrangement3.
Collecting, providing and
supervising food/accommodation
Gurupada Kuila Madhyamik 5 yrs experience in CPU 1. Overall cleaning of CPU
Bholanath Maity Madhyamik 3 yrs experience in CPU 1. Helper cum peon
Composition of CPU Cont……
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Instrumental facility in Clinical Pharmacology Unit
Instrumental facility in Clinical Pharmacology Unit
Sl.
No.
Name Make /Model / Country
1 Cold centrifuze(-20ºC) Elektrocraft /RC 4100D/Mumbai.India
2
ECG Machine Vega 3 Channel ECG machine/Larson & Toubro Ltd.
Cardiart / 108T/ India
3 Microscope National Instruments Ltd./Calcutta, India
4 Colorimeter Systonic/ SD06/India
5 Sphygmomanometer Cardiofonic/ H. Mukherji/India
6 Refrigerator (2 to 8ºC) Electrolus/ India
7 Digital Blood Pressure Monitor Omron MX/ Omron Healthcare Co. Ltd./India
8 Ice Box Milton/India
9 Micro Pipette (100-1000µl) Accupipette/Tarsons/India
10 Micro Pipette (10-100µl) Accupipette/Tarsons/India
11 Oxygen Cylinder India
12 Color TV Onida/21 inch/India
13 DVD LG/India
14 Saline Accessories Not Applicable (NA)
15 Emergency Accessories NA
16 Other Emergency Accessories NA
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February20, 2010
Analytical Unit
Analytical Unit
Analytical unit having requisite infrastructural facilities as well as the state-of-the art instrumental
support in the cozy air-conditioned lab.
Organogram of Analytical Unit
ANALYTICAL LABORATORY UNIT Qualification Experience
1
Mr. Amlan Kanti Sarkar,
Incharge
M.Sc.
5 yrs experience in handling analytical instruments
(HPLC, LC-MS/MS) for plasma analysis in BA/BE
Study in Jadavpur University
2 Mr. Ayan Das M.Sc.
3 yrs experience in handling HPLC/LCMS/MS in
connection with BA/BE Study in Jadavpur University
3 Mr. Bikash Roy
M.Pharm.,
(Clinical Pharmacy)
2 yrs experience in BA/BE Study in Jadavpur University
DATA HANDLING& INTERPRETATION Qualification Experience
Uday Shankar Chakraborty
Incharge
M.Pharm.
2 yrs experience in BA/BE Study in Jadavpur
University
DOCUMENTATION & REPORT PREPERATION Qualification Experience
1
Mrs. Debotri Ghosh,
Incharge
M.Sc. 5 yrs experience in BA/BE Study in Jadavpur University
2 Mrs. Manashree Mukherjee BCA 3 yrs experience in BA/BE Study in Jadavpur University
3 Mr. Chiranjit Saha B.Sc. 2 yrs experience in BA/BE Study in Jadavpur University
QUALITY ASSURANCE OF ALL OPERATIONS
IN CENTRE
Qualification Experience
1. Dr. (Mrs. ) Sangita Agarwal M.Sc., PhD 5 yrs experience in BA/BE Study in Jadavpur University
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Instrumental facility in Analytical Unit
Instrumental facility in Analytical Unit
Sr.
No. Name Make /Model / Country
1. LCMS/MS with ESI and APCI Applied Biosystem/API 2000/Canada
2. HPLC with UV detector
Shimadzu/LC20AD/japan; Jasco/ Japan,
Knauer/Germany
3. Autometic off line Tablet Dissolution Apparatus Electrolab/TDT-06T/ Bombay,India
4. Autometic off line Tablet Dissolution Apparatus
with Auto samplar
Electrolab/TDT-08L/ Bombay,India
5. Tablet Disintegration Tester Electrolab/ED-2L / Mumbai, India
6. Deep freezer (-20Cº) ICP/India
7. Cold centrifuze Elektrocraft /RC 4100D/Mumbai.India
8. Centrifuge Eltak/TC650S/Mumbai, India
9. Cold Centrifuge (-20° C) 20,000 rpm Eltek /RC-4100F /Mumbai
10. Electronic balance AdairDutta Instrument Pvt.Ltd./AD-50B/India
11 Electronic balance Sartorius /GD-103/Germany
12. pH meter Sartorius /PB-11/Germany
13. pH meter Toshniwal inst. mfg. Pvt. Ltd. /CL-54/ Ajmer, India
14. UV-Vis-Spectrophotometer Chemito/UV 2600/India
15. UV-Vis-Spectrophotometer Jasco/V-630/Japan.
16. Physiopic, 4-channel comp. polygraph ( EEG,
ECG, EMG, GSR)
Medicaid system/ PC-2004 / Chandigarh, India.
17. Macro element analyzer Medica corporation/Sr. No.32814BNK/Bedford, USA
18. Cell Counter (Animal blood) Medonica/ CA-620 / Loke, Canada
19. Pertical Size Analyser Malvern/2000SM/UK
20. Humidity Chamber Thermolab/Mumbai,India
21. Ultra Sonic Bath ICT/D-Compact/India
22. Water Bath (Digital) ITC/Kolkata, India
23. Vortex Mixture Eltak/VM301/Mumbai, India
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FLOW CHART OF DRUG SAMPLES FOR BA/BE STUDY
FLOW CHART OF DRUG SAMPLES FOR BA/BE STUDY
RECEIPT, RECORD &
STORAGE OF DRUG
SAMPLE
Incharge
RECEIPT OF DRUG
SAMPLES at CPU
Incharge
RECORD & STORAGE
OF DRUG SAMPLES AT
CPU
Incharge
CPU ACTIVITIES
CO-ORDINATING DOCTORS,
STAFFS, VOLUNTEERS AND
RECORD KEEPING
DRUG ADMINISTRATION
BLOOD WITHDRAWAL &
PLASMA SEPARATION
TRANSPORTATION OF PLASMA
FOOD/LODGING
BULK
DRUGS/APU
Incharge
RECEIPT OF DRUG
SAMPLES at
ANALYTICAL LAB
Incharge
RECORD & STORAGE
OF DRUG SAMPLES at
ANALYTICAL LAB
Incharge
BIOAVAILABILITY
METHOD
DEVOLOPEMENT and
ANALYSIS OF PLASMA
by HPLC & LCMS/MS
Incharge
DATA HANDLING &
INTERPRETATION
Incharge
Transport
DOCUMENTATION AND
REPORT PREPARATION
Transport
Transport
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February20, 2010
Bioequivalence Study of Gatifloxacin
Bioequivalence Study of Gatifloxacin
by HPLC ( A Case Study)
by HPLC ( A Case Study)
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Introduction
Introduction
Gatifloxacin is 8-
methoxyfluoroquinolone
Active against broad spectrum
pathogens
Has an elimination half life of about
7-10 hrs.
Most of the methods are available
by LC-MS
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Study Design
Study Design
I. Clinical
II. Analytical
III. Data Interpretation
IV. Documentation
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Clinical Study
Clinical Study
(Study was approved by DCGI, New Delhi & IEC of Jadavpur University)
Volunteers screening
Volunteers screening
•Male – 18-30 yrs aged (20.08 + 3.9)
48-69 kg weight (52.75 + 6.48)
•Complete Physical & Clinical
Examination (biochemical & hematological)
•Checked for evidence or history of relevant
disease of drug allergy or dependence.
•Subjects were informed about the nature of
drug & informed consents were signed.
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Clinical Study (cont.,)
Clinical Study (cont.,)
Preparations
Preparations
Test (Gatifloxacin 400 mg from SAGA labs,
Ahmedabad)
Reference (Gatilox 400mg from SUN
Pharmaceuticals)
Study Design
Study Design
2 way complete cross-over design (7 days
wash out period)
Drug Administration
Drug Administration
Tablets given orally with 250 ml water after
overnight fasting
Dietary Control
Dietary Control
Standard breakfast, lunch & dinner with
non-caffeine drinks
Allowed normal activities like watching TV
excluding strenuous exercise.
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Clinical Study (cont.,)
Clinical Study (cont.,)
Biological Samples
Biological Samples
15 blood samples were
collected (0, 0.5, 1, 1.5, 2, 3,
4, 6, 8, 10, 12, 18, 24, 36 &
48 hrs) in coded tubes with
EDTA
Samples were
centrifuged, plasma
separated & frozen at -
200
C.
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Analytical Study
Analytical Study
Instrument
Instrument
HPLC, Shimadzu, Japan (Prominence,
LC20AD)
Isocratic system with integrating
software Eurochrom 2000
Variable UV spectrophotometer
Column (Gemini –C18, 150 X 4.6 mm,
5µ particle size)
Rheodyne injector (fixed loop) with
20 µl Rhd. loop.
HPLC
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Analytical study (cont.,)
Analytical study (cont.,)
Analytical Conditions
Analytical Conditions
Mobile phase (10mM phosphate solution :
Acetonitirile 50:50 v/v)
UV detector set at 290 nm
Flow rate – 1ml / min
Calibration curve
Calibration curve
Concentrations of 0.25-8µg ml-1
were taken in
blank plasma
20µl injected
Mean drug peak area ratio was plotted against
concentration (x)
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Reconstituted with 1ml mobile phase & injected into HPLC
Organic layer (4ml) evaporated to dryness
Centrifuged for 5 min (4000 rpm)
Extraction with dichloromethane
1ml plasma + 0.1 ml dil. H3PO4
Analytical study (cont.,)
Analytical study (cont.,)
Plasma Extraction procedure
Plasma Extraction procedure
Plasma Extraction Unit
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Analytical study (cont.,)
Analytical study (cont.,)
Freeze Thaw Recovery
Freeze Thaw Recovery
Analyte of 0.25 (QCL), 0.75 (QCM) & 1.5 (QCH) mcg/ml of GTX
were tested with blank plasma (n=3)
Precision & Accuracy
Precision & Accuracy
Between – run precision & accuracy are determined from low,
medium & high QC samples
5 replicates were carried out for each QC samples on day 2 &
day 3
Within – run precision & accuracy are determined from 5
replicates of each QC samples on day 1
Pharmacokinetic parameters
Pharmacokinetic parameters
Pharmacokinetic parameters like AUC, Cmax, Tmax, Kel/hr, t1/2
were studied.
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Results
Chromatogram of Gatifloxacin
Chromatogram of Gatifloxacin
In Blank Plasma In Human Plasma
In Raw Drug
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Between – run precision & Accuracy (n = 13)
Between – run precision & Accuracy (n = 13)
QCL 0.25 QCM 0.75 QCH 1.5
Mean µg/ml 0.2470 0.7492 1.54
SD 0.0149 0.0152 0.1204
CV % 3.66 1.87 4.72
Absolute
% bias
99.75 99.90 101.92
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Within – run precision & Accuracy (n = 5)
Within – run precision & Accuracy (n = 5)
QCL 0.25 QCM 0.75 QCH 1.5
Mean µg/ml 0.2476 0.7364 1.513
SD 0.0116 0.0127 0.0902
CV % 2.93 1.601 3.58
Absolute
% bias
99.40 98.95 100.55
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February20, 2010
Mean Pharmacokinetic parameters obtained in 12 healthy volunteers
Mean Pharmacokinetic parameters obtained in 12 healthy volunteers
Pharmacokinetic
parameters
GATIFLOXACIN 400 mg
Reference
Preparation (A)
Test Preparation
(B)
Cmax
(ng./ml.)
Mean 463.7 452.3
S.D. 0.383 0.546
tmax
(hr.)
Mean 1.917 1.917
S.D. 0.195 0.417
AUC 0-t (ng.
hr./ml.)
Mean 2715.2 2599.1
S.D. 2.061 2.630
AUC 0- (ng.
hr./ml.)
Mean 3832.9 3437.1
S.D. 2.508 3.089
kel
(hr.-1
)
Mean 0.065 0.078
S.D. 0.012 0.016
t1/2
(hr.)
Mean 11.015 9.268
S.D. 1.820 1.974
Relative Bioavailability (%) 100 95.72%
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90% confidence Interval with the Test and Reference Preparation
90% confidence Interval with the Test and Reference Preparation
Confidence Interval GATIFLOXACIN
Cmax
Untransformed Data 0.8343-1.0052
Ln transformed Data 0.8358-1.0014
AUC 0-t
Untransformed Data 0.8877-1.0171
Ln transformed Data 0.8844-1.0148
AUC 0-
Untransformed Data 0.857-1.0231
Ln transformed Data 0.8566-1.0206
41.
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Curves of the mean plasma conc. (mcg/ml) Vs time (h)
Curves of the mean plasma conc. (mcg/ml) Vs time (h)
Test Sample
Reference Sample
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On comparison of AUC0-t the relative bioavailability of test
preparation was 93.50 % that of reference preparation
The HPLC method here proved to be simple, fast & reliable
The present study shows Test preparation was bioequivalent to
Standard preparation.
Conclusion
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AN OVERVIEW OF
AN OVERVIEW OF
BIOEQUIVALENCE STUDY CENTRE
BIOEQUIVALENCE STUDY CENTRE
Jadavpur University
Jadavpur University
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February20, 2010
ABOUT BIOEQUIVALENCE STUDY CENTRE,
ABOUT BIOEQUIVALENCE STUDY CENTRE,
Jadavpur University
Jadavpur University
Approved by DCGI
Approved by DCGI
Certified by ISO 9001:2000
Certified by ISO 9001:2000
Air Conditioned Lab
Air Conditioned Lab
Well equipped Lab
Well equipped Lab
Experts from all fields
Experts from all fields
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February20, 2010
EXPERTISE
EXPERTISE
Bioequivalence studies
Toxicity studies
Clinical Trials
Formulation development of Conventional & SR Tablets
(Single & Fixed Dose Combinations), Liquid orals, Soft
gelatin capsules
Analytical method development for drugs
Validation of the analytical methods
Stability studies