Bioequivalence study bioequivalence study should be performed according to sec. A typical outline for a bioequivalence study includes organization of the test and. An overview on bioequivalence regulatory requirements of orally. Determination of bioequivalence for drugs with narrow. Fingolimod is an oral agent approved for the treatment of relapsing forms of multiple sclerosis ms, which has demonstrated efficacy in phase iii trials in patients with relapsingremitting ms rrms. Before going into bioequivalence studies it is essential for the pharmaceutical industry to study the guidelines of bioequivalence for the respective country where the industry wants to market. Guidance on bioequivalence studies for reproductive health. Study of regulatory requirements for the conduct of bioequivalence studies in us, europe, canada, india, asean and sadc countries. In recent years, there have been significant changes to the statistical models for evaluating bioequivalence.
This is interesting to potential sponsors of bioequivalence be studies and to those interested in regulatory sciences. Fda regulations in part 320 21 cfr part 320 establish definitions and requirements for bioavailability and bioequivalence studies. Bioequivalence bioequivalence is defined to the class using the terms provided in section 505j7b of the federal food, drug, and cosmetic act. What is bioavailability and bioequivalence generics 2009. This document is intended to provide the principal requirements for reproductive health medicines.
The 7575 states that at least 75% of the subjects must show a bioavailability value for the new formulation that is at least 75% of the corresponding bioavailability measurement for the. Be studies and indicated steps to make certain that the information became part of regulatory processes and drug development. Talk with your doctor and family members or friends about deciding to join a study. In determining bioequivalence, for example, between two products such as a commercially available brand product and a potential tobemarketed generic product, pharmacokinetic studies are conducted whereby each of the preparations are administered in a crossover study to volunteer subjects, generally healthy individuals but occasionally in patients. Study on requirements of bioequivalence for registration of. This article provides the information about important aspect involved in bioequivalence and regulatory requirment for bioequivalence study. Importance of bioequivalence studies for enhancing pharmacokinetic parameters rita b 1, akhilesh t 2. Bioequivalence studies are crossover studies in which each subject acts as their own control. Fdas final rule on requirements for submission of bioequivalence data the be data rule requires an anda applicant to submit data from all be studies the applicant conducts on a drug. The conduct of bioequivalence studies in the following sections, requirements for the design and conduct of bioequivalence studies are. The use of semi or partial replicated designs is also allowed, since blood volume might be a problem for 4period studies. Handbook of bioequivalence testing crc press book as the generic pharmaceutical industry continues to grow and thrive, so does the need to conduct adequate, efficient bioequivalence studies. In vivo bioequivalence studies may be exempted if an assumption of equivalence in in vivo performance can be justified by satisfactory in vitro data.
Potential new method to improve bioequivalence be of modified release mr drug products by in vivo dissolution studies in human gi tract. A bioequivalence study is basically a comparative bioavailability study. Regulatory requirements in bioequivalence list of high. Pdf bioavailability ba and bioequivalence be studies play a major role in the. In bioequivalence studies an applicant compares the systemic exposure profile of a test drug to that of a reference drug product. The results obtained allow extrapolation to populations in which the reference product is approved e. Further more, phannacokinetics parameters of 21 oh deflazacort was investigated for test formulation against reference formulation. The present study highlights the relevant regulatory guidelines for the conduct of bioequivalence studies in us, europe, canada, india, south africa and south east asian nations. Bioavailability andor bioequivalence studies play a key role in the drug development period for both new drug products and their generic equivalents. Subsequently, another draft guidance was issued on the bioequivalence of tacrolimus.
For both, these studies are also important in the postapproval period in the presence of certain manufacturing changes. This model, in vivo healthy volunteers is regarded as adequate to detect formulation differences. Its commonly observed that there are several formulations of the same drug, in the same dose, in similar dosage form and meant to be given by the same route. For instance, it would be clinically useful to evaluate fastrelease drugs versus those with a delayed response also trade names versus generic ones. Statistical analysis of bioequivalence studies school of statistics and actuarial science by mavuto nyathi 576994 supervisor renette krommenhoek a research report submitted to the faculty of science in partial fulfilment of the requirements for the degree of master of science 26 october 2016. For the most uptodate version of cfr title 21, go to the electronic code of federal regulations ecfr. Choosing the reference batch unless otherwise justified, the assayed content of the batch used as test product should not differ more than 5% from that of the batch used as reference product determined with the test. The information on this page is current as of april 1 2019. Although this collection contains information of a legal nature, it has been developed for informational purposes only and does not constitute legal advice or opinions as to the current operative laws, regulations, or guidelines of any jurisdiction. Although there are a few exceptions, generally a bioequivalent comparison of test to reference. Tasneem ahmad, cbsbr, university of karachi 1 selection of be study design estimation of sample size number of volunteers 800 calculation of bioavailability ba. Guideline for bioequivalence studies of generic products december,2006. Importance of bioequivalence studies for enhancing.
Pdf study of regulatory requirements for the conduct of. Introduction this guidance document provides information about how to establish and conduct bioavailability studies for conventional formulations of oral drugs that are used for systemic effects. It should be noted that bioequivalence cannot be used for extrapolation of withdrawal periods between injectable products for intramuscular andor subcutaneous injection in food producing animals. A bioequivalence study report that is submitted as a product dossier must comply with who guidance for bioequivalence studies and who guidelines for good clinical practice.
Significance of be studies bioequivalence studies are intended to look at the in vivo execution of a test pharmaceutical item multisource contrasted with a reference pharmaceutical item. Regulatory requirements in bioequivalence high impact list of articles ppts. New requirements should be based on a demonstrated. In bioequivalence studies, the plasma concentration time curve is generally to assess the rate and extent of absorption. Sample size and power analysis in bioequivalence studies. Food effect bioavailability studies are usually conducted for new drugs and drug products during the investigational new drug ind period to assess the effects of food on the rate and extent of absorption of a drug when the drug product is administered shortly after a meal fed conditions, as compared to administration under. Table 9 regulatory criteria on number of studies required for conducting. In sixteen chapters, the volume explores a broad range of topics pertaining to bioequivalence, including its origin and principles, statistical considerations, food effect studies, conditions for waivers of bioequivalence studies, biopharmaceutics classification systems. Bioequivalence and bioavailability forum anvisa and. Guideline for bioequivalence studies for different oral. Bioequivalence concept regulations exist worldwide to assure quality, safety, and efficacy of medicines the bioequivalence be concept addresses the safety and efficacy issue for generic drug registration be provides the bridge from the generic product to the innovators clinical and nonclinical studies and. Bioavailability and bioequivalence studies submitted in. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. In the case of entericcoated products, the change in the diameter of the units forming the dosage forms and.
These studies are often done for generic drugs or when a formulation of a drug is changed during development. The new guidance has a number of new and even novel features. Guide for the bioequivalencemodule 5 3 if applicable, both sex male and females should be included in the study design. Bioequivalence studies compare both the rate and extent of absorption of various multisource drug formulations with the innovator reference product, on the basis that if two formulations exhibit similar drug concentrationtime profile in the bloodplasma, they should exhibit similar therapeutic effects three situations have thus. Sampling points also vary with respect to the regulatory guidelines of these countries. Submission of summary bioequivalence data for abbreviated. If prodrugs have low plasma concentrations, it is acceptable to demonstrate bioequivalence for the main active metabolite without measurement of parent compound. Choosing to participate in a study is an important personal decision. Bioequivalence range31 acceptable range of bioequivalence is generally 0. Bioequivalence studies in drug development focuses on the planning, conducting, analysing and reporting of bioequivalence studies, covering all aspects required by regulatory authorities. Comparative bioavailability studies should be conducted in accordance with generally accepted clinical practices that are designed to ensure the protection of the rights, safety and wellbeing of subjects and the good clinical practices referred to in division 5 of the regulations and described in the international conference on harmonisation ich guidance topic e6 on good clinical practice. The present study was aimed to study the requirements of bioequivalence for the registration of pharmaceutical products in the usa, europe and canada.
Bioequivalence who prequalification of medicines programme. Demonstration of bioequivalence for parent compound is recommended for inactive prodrugs. Regulatory requirements for be nirmal raj marasine jaya pathak 8262015 1regulatory. Bioequivalence and bioavailability, pre conference workshop budapest, 11 may 2009 3 69 57 statistical design and analysis i informa life scienceslife sciences defining study objectives according to the eu nfg 3.
As mauricio said, there isnt a specific guideline determining the anova structure for replicated designs, but ive always used fdas suggestion appendix e of 2001 guidance without problems. Applying for a bcsbased biowaiver is restricted to highly soluble drug substances with known. Bioavailability and bioequivalence studies marc sturgill, pharm. The requirements of the guideline on investigation of chiral active substances as far as relevant for bioavailability and bioequivalence studies should be taken into account for products containing chiral active substances. This comprehensive reference provides an indepth discussion on stateoftheart regulatory science in bioequivalence.
The use of a metabolite as a surrogate for an active parent compound is not encouraged. Overview of test designs invivo bioequivalence studies. Review on bioavailability and bioequivalence studies. Pulla reddy college of pharmacy, osmania university, hyderabad, india 2 department of pharmaceutical analysis, vathsalya college of pharmacy, jawaharlal nehru technology university, hyderabad, india. Informal communication by the center for drug evaluation and research cder, march 2003 rani s, pargal a. Fda finalized the bioavailability and bioequivalence regulations on january 7, 1977 42 fr 1624, and amended these regulations on april 28, 1992 57 fr 17950.
Project director center for bioequivalence studies and bioassay research international center for chemical and biological sciences university of karachi pakistan. The present study was designed to assess bioequivalence between a fingolimod test capsule formulation teva argentina, formerly ivax argentina s. The fda considers two products bioequivalent if the 90% ci of the relative mean cmax, auc 0t and auc 0. The studies were conducted in healthy human volunteers in both fasting and fed conditions as per the us regulatory requirements for conduct of bioequivalence studies. Design and conduct of bioequivalence studies the basis of a bioequivalence study is the comparison of the drug product to be tested with an appropriate reference product branded innovator drug.
A comparative study of the differences in study design and specifications have also been addressed. Study of regulatory requirements for the conduct of bioequivalence. The assessment of be of different drug products is based on the fundamental assumption that two products are equivalent when the rate and extent of absorption of the test drug does not show a significant difference from the rate and extent of absorption of the reference drug when administered at the same molar dose of the therapeutic ingredient under similar. Study on requirements of bioequivalence for registration. Study of regulatory requirements for the conduct of.
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