Biorelevant Experiment

Biorelevant Solubility

  • Use Biorelevant Mini Prep Kits with Biorelevant Solubility Filters to conduct standardized equilibrium solubility experiments rapidly and efficiently 

  • Prepare biorelevant medium freshly with single use vials of 3F Powder and mini bottles of buffer concentrate

  • In vitro results help provide an understanding of how much drug dissolves in vivo within gastrointestinal fluids in both fasted (FaSSGF and FaSSIF) and fed (FeSSIF) states

  • Results enable you to understand oral drug developability of a drug candidate 

  • Very small quantities (less than 1mg) of drug candidate required for each timepoint

Background

Establishing the biorelevant equilibrium solubility of a drug candidate can help you understand a drug's in vivo behaviour and absorption potential. Specifically, establishing a drug candidate's biorelevant solubility is crucial for understanding its potential to be delivered orally. Biorelevant equilibrium solubility is the first step towards guiding and selecting potential formulation strategies for a drug product.

Biorelevant equilibrium solubility test results can enable developers to:

•    Estimate how much drug candidate is likely to dissolve within the gastrointestinal fluids
•    Identify potential developability challenges such as poor absorption or reason for food effects 
•    Reveal potential oral developability

How to conduct a Biorelevant Equilibrium Solubility Test

                                                       

1) Add drug candidate to biorelevant medium                  2) Insert filter housing into vial                             3) Incubate and collect samples. Analyse at 03h, 06h and 24h

*Determine the solubility of a drug candidate in the selected biorelevant medium by using Biorelevant Solubility Filters (available below)

*Dilute biorelevant solubility samples and analyse the amount of drug dissolved with HPLC (High-Performance Liquid Chromatography) 

Getting started

We have produced step-by-step guides to help you set up the analytical method for your drug candidate and conduct the biorelevant equilibrium solubility test. You can download these here:

 

METHOD

HPLC Analytical Set Up For Biorelevant Solubility

Establish the HPLC analytical setup for a drug product before carrying out biorelevant solubility

MaterialDrug Candidate/Substance
MediaFaSSIF, FeSSIF, FaSSGF
EquipmentUV (DAD or PDA) Detector
AnalysisHPLC
Biorelevant Solubility Test

Carry out solubility of a drug candidate in specific simulated gastrointestinal fluids

MaterialDrug Candidate/Substance
MediaFaSSIF, FeSSIF, FaSSGF
EquipmentBiorelevant Solubility Filters
AnalysisHPLC

MATERIALS

FaSSIF (Mini Prep)
Medium
FaSSIF
Prandial State
Fasted
Fluid Simulated
Small Intestinal
pH
6.5
FaSSIF (Mini Prep)

Use the mini bottle of FaSSIF Buffer Concentrate with the matching vial of 3F Powder to make FaSSIF.

FeSSIF (Mini Prep)
Medium
FeSSIF
Prandial State
Fed
Fluid Simulated
Small Intestinal
pH
5.0
FeSSIF (Mini Prep)

Use the mini bottle of FeSSIF Buffer Concentrate with the matching vial of 3F Powder to make FeSSIF.

FaSSGF (Mini Prep)
Medium
FaSSGF
Prandial State
Fasted
Fluid Simulated
Gastric
pH
1.6
FaSSGF (Mini Prep)

Use the mini bottle of FaSSGF Buffer Concentrate with the matching vial of 3F Powder to make FaSSGF.

Biorelevant Solubility Filters
Filter
Polypropylene Depth Filter
Pore Size
0.45µm
Housing
Translucent
Features
No adsorption study needed
Made In
UK
Holding Vol.
≤0.5mL unfiltered sample
Biorelevant Solubility Filters

Biorelevant Solubility Filters require only a minimal amount of drug candidate (<1 mg). The built-in depth filter removes larger particles before fine (membrane) filtration, ensuring reproducible results. Each box of Biorelevant Solubility Filters (UNIP-MN) contains 50 filter housings (with slit septum caps) and 50 vials.

RECOMMENDED BUYS

SELECT MEDIUM

FaSSIF (Mini Prep)
FeSSIF (Mini Prep)
FaSSGF (Mini Prep)

FaSSIF Mini Prep Kit

X
X

FaSSIF Mini Prep Kit

  • Makes 6 x 100mL portions of FaSSIF

  • Long shelf life (at least 12 months) and can be stored at room temperature

  • Biorelevant Solubility Filters come in packs of 50 pieces

FaSSIF Mini Prep Kit
Solubility Filters
In stock
$199.99
- +
In stock
$149.99
- +

FeSSIF Mini Prep Kit

X
X

FeSSIF Mini Prep Kit

  • Makes 6 x 100mL portions of FeSSIF

  • Long shelf life (at least 12 months) and can be stored at room temperature

  • Biorelevant Solubility Filters come in packs of 50 pieces

FeSSIF Mini Prep Kit
Solubility Filters
In stock
$199.99
- +
In stock
$149.99
- +

FaSSGF Mini Prep Kit

X
X

FaSSGF Mini Prep Kit

  • Makes 6 x 100mL portions of FaSSGF

  • Long shelf life (at least 12 months) and can be stored at room temperature

  • Biorelevant Solubility Filters come in packs of 50 pieces

FaSSGF Mini Prep Kit
Solubility Filters
In stock
$199.99
- +
In stock
$149.99
- +