Is 30 °C an acceptable storage condition for lyophilised dulaglutide?

Numbers first: 30 °C · dulaglutide.

I would rather be corrected now than propagate something wrong.

I am specifically not interested in a testimonial; I am interested in a measurement.

How well supported is this claim?

30 °C is above the refrigerated band, and how far above is the whole answer. 30 °C is 25 kelvin above the 5 °C middle of a 2–8 °C refrigerator. The ten-degree rule of thumb — degradation rate roughly doubling per 10 K — makes that about 5.7 times the refrigerated rate, which is an order-of-magnitude statement and not a shelf life. Lyophilised material tolerates this far better than solution does, which is why it is shipped that way, but "tolerates" is a statement about weeks and the vial is being asked about months. Log the excursion rather than guess at it. Nothing here is medical advice, and research-use-only material is not approved for human use.

The honest answer is that ordinary refrigeration handles almost every case people ask about.

Keep vials in their original carton or in an opaque box. Light exposure matters for tryptophan-containing sequences and for anything with a chromophore, and a closed box is free.

Degradation pathway by condition

Store with the desiccant sachet if one was supplied, inside the secondary container rather than loose in a drawer. Residual moisture is the dominant variable in solid-state stability.

Two-to-eight-degree refrigeration and minus-twenty freezing are the standard storage conditions for lyophilised peptides in supplier documentation across the market.

Dry, cold, dark, still. Four words and you have the answer.