Emerging Trends in Bioequivalence Research

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Pharmacokinetics and Pharmacodynamics".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 1740

Special Issue Editors


E-Mail Website1 Website2
Guest Editor
Clinical Research Unit, Medical Department, Adium S.A., São Paulo 04794-000, Brazil
Interests: bioequivalence; pharmacokinetics; bioavailability; drug product development; IVIVC; biopharmaceutics; PBBM; biowaiver

E-Mail Website
Guest Editor
College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
Interests: pharmacokinetic drug–drug interaction; pharmacokinetic herb–drug interaction; drug-metabolizing enzymes and transporters; pharmacokinetic/pharmacodynamics in drug development; oral bioavailability
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Pharmacy, Ajou University, Suwon 16499, Korea
Interests: controlled bioavailability of poorly soluble and poorly absorbable drugs; solubilization, formulation, and development of patient-centric dosage forms; advanced nano-based delivery systems using fattigation (fatty acid conjugation) and click chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Bioequivalence (BE) assessment is a crucial way to establish therapeutic equivalence for generic drug products and their respective comparator products. In addition, bioavailability comparison may sometimes also be required for supporting regulatory approval of incremental innovation, such as new dosage forms, fixed-dose combinations, and other approaches. Furthermore, BE studies are used by innovator and generic product developers to support post-approval formulation and/or manufacturing process changes. Two drug products containing the same drug substance(s) are considered bioequivalent if their rate and extent of drug absorption, after administration in the same molar dose, lie within acceptable predefined limits. These limits are set to ensure comparable in vivo performance, i.e., similarity in terms of safety and efficacy.

Current regional or multi-regional guidelines have different views and criteria regarding the design of BE studies and data analysis. The new ICH (International Conference on Harmonisation) M13 initiative is looking to harmonise BE requirements for immediate release solid oral dosage forms, which could facilitate the use of the same data and information to meet multiple jurisdictions’ regulatory requirements and ensures the application of consistent standards for demonstrating BE. Moreover, harmonisation may streamline drug development and make it more cost effective, by potentially reducing the number of duplicative BE studies that are required to meet the standards for more than one jurisdiction and lead to a reduced number of human subjects that are required for these studies.

We are pleased to invite all researchers to submit their findings and recent advances on BE assessment. In this Special Issue, original research articles and reviews are welcome. Topics of interest may include, but are not limited to, BE studies for generics (mainly complex generics, such as inhalers, injectables, ophthalmic solutions and suspensions, and transdermal patches) and incremental innovation (e.g., new dosage forms, fixed-dose combination, etc.), advanced BE study design considerations, data analysis and BE assessment for highly variable drugs and drugs with a narrow therapeutic index, truncated or partial AUC considerations, advances in bioanalysis for endogenous compounds and ligand-binding assays (LBAs), biowaiver approaches based on BCS, and biopredictive dissolution conditions and PBBM/IVIVC models for predicting BE study results.

We look forward to receiving your contributions.

Dr. Marcelo Gomes Davanço
Prof. Dr. Im-Sook Song
Prof. Dr. Beom-Jin Lee
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Pharmaceutics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bioequivalence
  • bioavailability
  • pharmacokinetics
  • ICH M13
  • complex generics
  • biowaiver based on BCS
  • bioanalysis
  • biopredictive dissolution conditions
  • PBBM
  • IVIVC

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

13 pages, 1263 KiB  
Article
Buprenorphine Transdermal Delivery System: Bioequivalence Assessment and Adhesion Performance of Two Patch Formulations
by Marcelo Gomes Davanço, Miguel Fortuny, Alejandro Scasso, Jessica Meulman, Fernando Costa, Thalita Martins da Silva, Débora Renz Barreto Vianna, Leonardo de Souza Teixeira, Karini Bruno Bellorio, Ana Carolina Costa Sampaio and Celso Francisco Pimentel Vespasiano
Pharmaceutics 2024, 16(10), 1249; https://doi.org/10.3390/pharmaceutics16101249 - 26 Sep 2024
Viewed by 1084
Abstract
Background and Objective: Buprenorphine is an opioid drug indicated for the management of severe and persistent pain. The buprenorphine transdermal patch provides a non-invasive method of rate-controlled drug release, ensuring constant and predictable drug plasma levels over an extended period. This study aimed [...] Read more.
Background and Objective: Buprenorphine is an opioid drug indicated for the management of severe and persistent pain. The buprenorphine transdermal patch provides a non-invasive method of rate-controlled drug release, ensuring constant and predictable drug plasma levels over an extended period. This study aimed to assess the bioequivalence, skin adhesion non-inferiority, and tolerability of two buprenorphine transdermal patches to meet the regulatory requirements for the registration of a generic product in Brazil. Methods: A randomized, single-dose, two-period, two-sequence crossover trial was performed involving healthy subjects of both genders. The subjects received a single dose of either the test formulation or the reference formulation (Restiva®), separated by a 29-day washout period. For pharmacokinetic analysis, blood samples were collected up to 12 days post-dose and quantified using a validated bioanalytical method. Skin adhesion was assessed over a 7-day period (dosing interval) following patch application. Seventy-six subjects were enrolled and fifty-two completed the study. Results and Conclusion: The 90% confidence intervals for Cmax, AUC0–t, and partial AUCs were within the acceptable bioequivalence limits of 80 to 125%. Adhesion comparison showed the non-inferiority of the test formulation. Based on ANVISA’s regulatory requirements, the test and reference formulations were considered bioequivalent and could be interchangeable in clinical practice. Full article
(This article belongs to the Special Issue Emerging Trends in Bioequivalence Research)
Show Figures

Figure 1

Back to TopTop