Understanding the long-term effect of your drug on overall physiology and behavior is a critical component in successful driving a product to the clinic.
Sub-chronic Toxicity Studies
Typically 28-90 days, sub-chronic toxicity studies are designed to detect adverse effects over a moderate period.
Chronic Toxicity Studies
Spanning 90 days to over a year, chronic toxicity aims to identify long-term, cumulative, and delayed onset adverse effects that may not show up in a shorter study.
Routes of Administration
The chosen route of administration is critical for meaningful toxicity data. Long-term exposure must occur in the context of relevant physiology to inform real effects.
Capabilities and Services Summary
Frequently Asked Questions
Optimal preclinical study design is essential for successful drug development. Let our vast experience guide your thinking.

Ichor serves as a one-stop-shop for many in vivo study needs, and we use the most state-of-the-art equipment for the work we perform. Our team can assess neurobehavioral endpoints, perform almost every blood collection or dosing technique, as well as a myriad of ophthalmology techniques, and more. You can be confident you’re getting the best there is to offer.
Ichor is your ideal partner for unconventional ideas and studies. Before spending exorbitant amounts of money on a GLP study, consider partnering with our team to run a DRF or exploratory study so you can begin your large-scale GLP studies with confidence.