Gadopiclenol

Gadopiclenol is a gadolinium-based contrast agent (GBCA) based on a pyclen macrocyclic structure. It is indicated for use with magnetic resonance imaging (MRI) to detect and visualize lesions with abnormal vascularity in the central nervous system and the body. In 2006, the use of GBCAs was associated with the development of nephrogenic systemic fibrosis (NSF), a rare disorder characterized by the thickening and hardening of skin and subcutaneous tissues. However, studies revealed that NSF was associated with linear GBCAs, not macrocyclic GBCAs, such as gadopiclenol. Gadopiclenol has high kinetic stability and a high r1 relaxivity, allowing it to be used at lower doses than classic extracellular GBCAs.

In September 2022, the use of gadopiclenol was approved by the FDA. The product label includes a black box warning regarding the increased risk for NSF among patients with impaired elimination of the drugs.