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Related Concept Videos

Drug Dissolution: Requirements and Profile Comparison01:14

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The acceptance criteria for dissolution profile data are anchored in Q values, representing the percentage of drug dissolved within a specified period. This assessment unfolds in three stages:First Stage: The test passes if all six drug dosage units are equal to or greater than Q plus 5%; otherwise, the sample proceeds to the second stage.Second Stage: The average of twelve units must be equal to or greater than Q, with no unit falling below Q - 15% to pass; if not, it progresses to the final...
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Various dissolution methods are utilized to assess a drug’s dissolution rate, including the flow-through cell, paddle-over-disk, cylinder, and reciprocating disk methods.The flow-through cell apparatus (USP (United States Pharmacopeia) method 4) comprises a reservoir for the dissolution medium and a pump that propels the medium through the cell containing the test sample. This method is crucial for assessing modified-release dosage forms with minimally soluble active ingredients,...
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Alternative drug dissolution methods include the rotating bottle, intrinsic dissolution test, peristalsis, and the Franz diffusion cell method. The rotating bottle method involves meticulously rotating tightly capped controlled-release beads in a temperature-controlled bath. Periodic decanting of samples allows for residue assay, followed by refilling with fresh medium and testing at various pH levels to emulate the gastrointestinal tract conditions.In contrast, the intrinsic dissolution test...
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Compendial dissolution methods are standardized procedures defined by pharmacopeias to evaluate the rate at which a drug dissolves in a specific medium. These methods ensure batch-to-batch consistency, enable quality control, and support the prediction of drug bioavailability. They are critical for both immediate and modified-release drug products.The apparatuses used for dissolution testing differ in their design and mechanical function, but all aim to simulate the physiological environment of...
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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
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Transfer of drug dissolution testing by statistical approaches: Case study.

Mohammed Amood Al-Kamarany1, Miloud El Karbane, Khadija Ridouan

  • 1Research Team of Pharmaceutical and Toxicological Analysis, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, Mohammed V University, Soussi, Rabat, Morocco ; Physicochemical Service, Drugs Quality Control Laboratory, Direction of Drugs and Pharmacy, Ministry of Health, Rabat, Morocco.

Saudi Pharmaceutical Journal : SPJ : the Official Publication of the Saudi Pharmaceutical Society
|October 11, 2013
PubMed
Summary

Analytical method transfer between laboratories is crucial. This study successfully transferred a dissolution test for diclofenac sodium using Gauge repeatability and reproducibility (R&R) studies, ensuring reliable pharmaceutical analysis.

Keywords:
Accuracy profileDissolution testStatistics approachTotal errorTransfer

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Area of Science:

  • Pharmaceutical Analysis
  • Analytical Chemistry
  • Method Transfer

Background:

  • Analytical method transfer is a critical process in the pharmaceutical industry.
  • Lack of official guidelines for method transfer creates regulatory ambiguity.
  • Ensuring a receiving laboratory masters a procedure is key to preventing future issues.

Purpose of the Study:

  • To demonstrate the successful transfer of a dissolution test for diclofenac sodium.
  • To evaluate the effectiveness of Gauge repeatability and reproducibility (R&R) studies in method transfer.
  • To confirm the receiving laboratory's proficiency in executing the transferred analytical procedure.

Main Methods:

  • Application of Gauge repeatability and reproducibility (R&R) studies.
  • Utilizing multivariate statistical analyses for transfer assessment.
  • Validation of the High-Performance Liquid Chromatography (HPLC) method using accuracy profile (total error) in the sending laboratory.
  • Case study involving the transfer of a dissolution test for diclofenac sodium between two laboratories.

Main Results:

  • Successful transfer of the dissolution test for diclofenac sodium from laboratory A to laboratory B.
  • Demonstrated that laboratory B mastered the dissolution test process using the transferred HPLC method.
  • Gauge R&R and multivariate statistics proved effective for assessing method transfer.

Conclusions:

  • Dissolution tests can be successfully transferred even if the receiving laboratory does not master the entire analytical method validation process, provided the sender uses total error for validation.
  • Maintaining the analytical method's state ensures reliable and consistent results in the receiving laboratory.
  • The study highlights a practical approach to pharmaceutical method transfer, ensuring data integrity and regulatory compliance.