Eisbach Bio GmbH has announced FDA clearance of its IND application for EIS-12656, a first-in-class orally bioavailable and blood-brain barrier-penetrant allosteric inhibitor of ALC1 (CHD1L), a key molecular machine in DNA repair. Enrollment will open in the second quarter in a phase I/II trial in patients with genetically defined advanced solid tumors, including patients progressing under PARP inhibitor treatment.