Interactive Tool • Conversion

Clinical Dose Converter

A critical tool for formulators to translate clinical trial dosages—often expressed in mass (mg) or historical CFU counts—into actionable formulation targets.

The Problem of Equivalence

A specific question answered: How do I formulate a product when the clinical trial used a lyophilized powder mass instead of a CFU count? You must obtain the specific potency of the raw material (CFU/g) at the time of manufacture. This tool provides standardized conversions based on typical high-potency raw materials.

Formulation Mass Required

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milligrams (mg) per serving

Worked Example

A clinical trial establishes efficacy at 10 × 109 CFU. If using a raw material supplied at 100 × 109 CFU/g, and requiring a 20% overage for shelf-life stability, the calculation is:

Common Mistakes in Formulation

  1. Forgetting Overage: Clinical trials often report the administered dose at time of consumption. Formulators must add significant overage (often 20-50%) to ensure that end-of-shelf-life counts meet the clinical target.
  2. Assuming Consistent Potency: Raw material potency varies by batch. Always formulate based on the specific Certificate of Analysis (CoA) for the lot.

Frequently Asked Questions

Why do some trials only list mg doses?

This is common in older studies (e.g., early S. boulardii research) where viable counts were harder to standardize. Modern formulation standards require translating these historical mass doses into guaranteed CFU counts.

Next Steps

Once you have calculated your required dosage mass, verify the viability loss over time using our CFU Degradation Modeler. If you need assistance translating older clinical data, consider our Advisory Services.

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