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Bioequivalence  112070804009
Bioequivalence 112070804009
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Bioequivalence studies

  1. 1. M R . P A N K A J K U S U M R A M D A S K H U S P E M . P H A R M A C Y ( P H A R M A C E U T I C S ) BIOEQUIVALENCE STUDIES
  2. 2. Learning objectives Upon completion of presentation you will  Understand the definition and concept of Bioequivalence Studies.  Able to remember the need or objective of Bioequivalence Studies  Able to analyze various types of equivalence Studies.
  3. 3. Points to be discussed  Definition of equivalence  Different types equivalence  Types of Bioequivalence Studies  Bioequivalence Experimental Study Design
  4. 4. Think on it... Sr . No. Original Formulation of Tablet New formulation of Tablet 1. Phenyntoin Sodium Phenyntoin Sodium 2. Calcium Phosphate Lactose What will be the effect of change in formulation??? Whether it will cause a. Change in therapeutic effect? b. Changes in absorption? c. What will be overall effect of change in inactive ingredients
  5. 5. Definition of Equivalence relative term that compares drug products with respect to a specific characteristic or function or to a defined set of standards. “It is a relative term that compares drug products with respect to a specific characteristic or function or to a defined set of standards. ”
  6. 6. Types or kinds of Equivalence Equivalence Chemical Equivalence Pharmaceutical Equivalence Therapeutic Equivalence Bioequivalence
  7. 7. Definition of Bio-equivalence relative term which denotes that the drug substance in two or more identical dosage forms, reaches the systemic circulation at the same relative rate and to the same relative extent i.e. their plasma concentration-time profiles will be identical without significant statistical differences.
  8. 8. Definition of Bio-equivalence “It is a relative term which denotes that the drug substance in two or more identical dosage forms, reaches the systemic circulation at the same relative rate and to the same relative extent i.e. their plasma concentration-time profiles will be identical without significant statistical differences.”
  9. 9. Other types of equivalence Name Particular Chemical Equivalence two or more drug products contain the same labelled chemical substance as an active ingredient in the same amount. Pharmaceutical Equivalence two or more drug products are identical in strength, quality, purity, content uniformity and disintegration and dissolution characteristics; they may however differ in containing different excipients. Therapeutic Equivalence two or more drug products that contain the same therapeutically active ingredient elicit identical pharmacological effects and can control the disease to the same extent.
  10. 10. Need or Objectives of Bio-equivalence  new product is to be a substitute an approved medicinal marketed product as a pharmaceutical equivalent or alternative, the equivalence with this product should be shown or justified.  In order to ensure clinical performance of such drug products, bioequivalence studies should be performed.  Bioequivalence studies are conducted if there is: A risk of bio-inequivalence and/or A risk of pharmacotherapeutic failure or diminished clinical safety.
  11. 11. Types of Bioequivalence Studies  Bioequivalence can be demonstrated either – 1. In vivo, or 2. In vitro.
  12. 12. Bioequivalence Experimental Study Design  The various types of study tests designs that are usually employed in bioequivalence studies are; 1. Completely randomised designs 2. Randomised block designs 3. Repeated measures, cross-over and carry-over designs 4. Latin square designs
  13. 13. Any doubt and question? Thank you….

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