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DNS/DND Calculations

How Bluefin handles DNS/DND calculations.

M
Written by Mark Lopez
Updated over 3 weeks ago

To fine tune lot and shipment recommendations and provide a more accurate forecast, Bluefin supports Do Not Ship and Do Not Dispense values.

Value

Description

Do Not Ship (DNS)

The number of days, before expiration, that the lot at a depot is restricted from being shipment to a site. DNS has no impact on drug products already at a site.
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Bluefin will recommend lot manufacturing runs to occur earlier to ensure drug products are shipped to sites before this cutoff (respecting any lead times in the supply chain).

Do Not Dispense (DND)

The number of days, before expiration, that the lot can no longer be dispensed at a site. This is commonly used when your drug product needs to have a minimum expiration time after being dispensed.

For example, a drug product is a tablet taken daily over the course of a month by the participant, so the drug product must be dispense at least a month before the product's expiration date.

Bluefin will only recommend shipments which allow dug products to be dispensed before this DND cutoff. A value of 0 allows drug products to be dispensed up until the expiration date on the corresponding lot.

DNS/DND values impact the lot recommendation algorithm separately for each individual part. Once recommended lots are accepted, the generated lots will have the same DNS/DND values. These DNS/DND which will be considered during forecasting.

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