Eco-Scale vs. UPLC: Remdesivir in Plasma
- The ongoing need for efficient and environmentally conscious analytical methods has driven importent innovation in pharmaceutical analysis.This article explores the growth and submission of a novel, green method...
- Modern ultra-performance liquid chromatographic (UPLC) instruments are gaining prominence as eco-friendly alternatives to standard high-performance liquid chromatographic (HPLC) instruments.
- Moreover, UPLC-fluorescence instruments offer a cost-effective and environmentally sound option compared to liquid chromatographic instruments connected to mass spectroscopic detectors (LC-MS).
Advancements in Remdesivir detection: A Greener Approach
Table of Contents
- Advancements in Remdesivir detection: A Greener Approach
- Advancements in Remdesivir Detection: A Greener Approach – Q&A
The ongoing need for efficient and environmentally conscious analytical methods has driven importent innovation in pharmaceutical analysis.This article explores the growth and submission of a novel, green method for detecting and quantifying Remdesivir, a critical antiviral drug.
The Rise of UPLC-Fluorescence in Pharmaceutical Analysis
Modern ultra-performance liquid chromatographic (UPLC) instruments are gaining prominence as eco-friendly alternatives to standard high-performance liquid chromatographic (HPLC) instruments. This is primarily due to their superior peak resolution, reduced retention times, and decreased solvent and energy consumption.
Moreover, UPLC-fluorescence instruments offer a cost-effective and environmentally sound option compared to liquid chromatographic instruments connected to mass spectroscopic detectors (LC-MS). While LC-MS boasts higher specificity and selectivity, it presents “some greenness concerns, including its high price, maintenance, and operational costs.”
LC-MS systems also require significant energy consumption for air conditioners and nitrogen generators. Moreover, solvent selection is limited to maintain volatile mobile phase streaming, and “very high-purity gases are needed to operate the system.” Consequently,UPLC-fluorescence instruments emerge as a greener and more economical choice,particularly suitable for routine analysis.
Remdesivir and the Fight Against COVID-19
COVID-19, a severe global respiratory disease caused by SARS-CoV-2, prompted the rapid development and deployment of antiviral treatments. In october 2020, the FDA approved remdesivir (REM) for COVID-19 treatment. Remdesivir functions by inhibiting the RNA-dependent RNA polymerase enzyme, thereby preventing viral replication.
Various analytical methods have been employed to estimate REM,including UPLC,HPLC,LC-MS/MS,spectrofluorimetric,and electrochemical techniques. these methods play a crucial role in monitoring drug levels and ensuring effective treatment.
A Novel UPLC-Fluorescence Method for Remdesivir Determination
A recent study focused on developing and optimizing a sensitive and green UPLC-fluorescence method for REM determination in human plasma. The primary goal was to create a method that minimizes solvent and plasma consumption while maximizing environmental friendliness.
The proposed UPLC method underwent optimization using the design of experiments (DOE) procedure before application to plasma samples. This approach aimed to enhance the method’s greenness and efficiency. Later, the method was validated according to the guidelines of the international council for harmonisation (ICH) for bioanalytical method validation.
Assessing Greenness: Eco-Scale, BAGI, ComplexMoGAPI, and AGREEprep
The greenness of the developed method was rigorously evaluated using several metrics:
- Eco-Scale
- Blue applicability grade index (BAGI)
- Complex modified green analytical procedure index (ComplexMoGAPI)
- Analytical greenness metric for sample planning (AGREEprep)
These assessments provide a comprehensive understanding of the method’s environmental impact. The developed method’s greenness was compared with that of a reference method that used a photodiode array (PDA) detector rather of a fluorescence detector.
Implications for Therapeutic Drug Monitoring
The suggested method holds significant promise for therapeutic drug monitoring of remdesivir determination in human plasma. Its greenness, coupled with easy and swift plasma preparation and extraction, makes it valuable in hospitals, bioequivalent centers, and clinical research settings during new dosage form development.
This advancement contributes to more lasting and efficient pharmaceutical analysis, aligning with the growing emphasis on environmental duty in healthcare.
Spectrofluorimetric determination of Remdesivir
Beyond UPLC, spectrofluorimetric methods offer another avenue for Remdesivir detection. One such assay leverages the native fluorescence of Remdesivir at pH 4, measuring it at wavelengths of 244/405 nm. Calibration is achieved over a range of 1.0-65.0 ng mL −1. Variables affecting the methodology were studied to maximize sensitivity, achieving limits of detection and quantification of 0.287 and 0.871 ng mL −1, respectively.
TLC-Densitometric Method for Remdesivir and Favipiravir
A novel surroundings friendly TLC-densitometric method has been developed for the determination of anti-coronavirus drugs “Remdesivir and Favipiravir”. This method includes green assessment with application to pharmaceutical formulations and human plasma.The limits of detection and quantitation were 0.04.
Advancements in Remdesivir Detection: A Greener Approach – Q&A
Understanding remdesivir Analysis
What is Remdesivir and why is it critically important to detect it?
Remdesivir (REM) is an antiviral drug approved by the FDA in October 2020 for the treatment of COVID-19. It functions by inhibiting the RNA-dependent RNA polymerase enzyme, thus preventing the replication of the SARS-cov-2 virus.Accurate detection and quantification of Remdesivir are crucial for:
Monitoring drug levels in patients.
Ensuring effective treatment.
Supporting the development of new dosage forms.
Bioequivalence studies.
What analytical methods are used to detect Remdesivir?
various analytical methods have been employed to estimate Remdesivir,including:
UPLC (ultra-Performance Liquid Chromatography)
HPLC (High-Performance Liquid Chromatography)
LC-MS/MS (Liquid Chromatography-Mass Spectrometry/Mass Spectrometry)
Spectrofluorimetric methods
Electrochemical techniques
TLC-Densitometry
The Rise of Green Analytical Methods
Why is there a need for greener analytical methods in pharmaceutical analysis?
The increasing focus on environmental responsibility necessitates the development of efficient and eco-friendly analytical methods. Traditional methods often involve:
High solvent consumption.
High energy consumption.
Use of expensive and hazardous materials.
Green analytical methods aim to minimize waste, reduce energy consumption, and utilize safer chemicals, thereby reducing the overall environmental impact.
What are the advantages of using UPLC-Fluorescence over LC-MS for Remdesivir detection?
UPLC-fluorescence offers several advantages over LC-MS for routine Remdesivir analysis:
Cost-Effectiveness: UPLC-fluorescence instruments are more affordable than LC-MS systems.
Environmental Friendliness: LC-MS systems consume meaningful energy for air conditioners and nitrogen generators and require high-purity gases. UPLC-fluorescence reduces these demands.
Simpler Operation: UPLC-fluorescence methods are generally easier to operate and maintain compared to LC-MS.
Reduced Solvent Consumption: UPLC, in general, reduces solvent and energy consumption because of superior peak resolution and reduced rentention times.
While LC-MS boasts higher specificity and selectivity, UPLC-fluorescence emerges as a greener and more economical choice especially suitable for routine analysis.
Novel UPLC-Fluorescence Method
what is the main goal of the novel UPLC-Fluorescence method for Remdesivir determination?
The primary goal is to develop and optimize a sensitive and green UPLC-fluorescence method for determining Remdesivir concentrations in human plasma. This method aims to:
Minimize solvent and plasma consumption.
Maximize environmental friendliness.
Provide accurate and reliable results for therapeutic drug monitoring.
How was the UPLC method optimized?
The UPLC method was optimized using the design of experiments (DOE) procedure before application to plasma samples. This approach helps to:
Enhance the method’s greenness.
Improve efficiency.
Ensure robustness and reliability
How was the greenness of the developed method assessed?
The greenness of the developed method was rigorously evaluated using these metrics:
Eco-Scale
Blue applicability grade index (BAGI)
complex modified green analytical procedure index (ComplexMoGAPI)
* Analytical greenness metric for sample planning (AGREEprep)
These assessments provide a extensive understanding of the method’s environmental impact.
Other Analytical Methods for Remdesivir
What is the Spectrofluorimetric method for Remdesivir detection?
Spectrofluorimetric methods offer an choice for Remdesivir detection, leveraging the native fluorescence of Remdesivir. One such assay measures fluorescence at wavelengths of 244/405 nm at pH 4.This method demonstrates sensitivity, with reported limits of detection and quantification of 0.287 and 0.871 ng mL−1, respectively.
What is TLC-Densitometry?
TLC-densitometric method is another method developed for determination of Remdesivir and Favipiravir. This method includes green assessment and can be applied to pharmaceutical formulations and human plasma. The limits of detection and quantitation were 0.04.
Summary Table: Analytical Methods for Remdesivir Detection
| Method | Principle | Advantages | Disadvantages | Greenness |
| ———————— | ——————————————- | ————————————————————————————————————– | ————————————————————————- | —————————————————————————————————– |
| UPLC-Fluorescence | Chromatography with fluorescence detection | Sensitive, cost-effective, greener alternative to LC-MS, reduced solvent consumption | Less specific and selective than LC-MS | High; minimizes solvent and energy consumption |