The present disclosure provides solid solution capsule formulations of Compound 1and methods of making the same. Also provided herein are methods of treating individuals suffering from or susceptible to a disease or disorder involving pathologic activation of C5a receptors by administering an effective amount of one or more solid solution capsules comprising Compound 1. Further provided herein are singe unit dosage capsules comprising certain amounts of Compound 1, and kits comprising a solid solution capsule comprising Compound 1.
