Evaluation of the Presence of SENS-401 in the Perilymph

The study is a Phase IIa, open-label, randomized and controlled study investigating repeated twice-daily administration of oral SENS-401 in adult participants with moderately severe to profound hearing loss who have already agreed to undergo cochlear implant surgery justified by their hearing impairment.

After written informed consent is obtained and screening procedures completed, 27 eligible participants will be randomized on Day 1 to either Arm A or Arm B in ratio 2:1 (18 participants in Arm A and 9 participants in Arm B).

Arm A participants will commence dosing with twice-daily oral 43.5 mg SENS-401 for 7 days prior to their scheduled cochlear implant surgery on Day 8 and up to 42 days from day of surgery inclusive.

Arm B participants will not receive any treatment other than their scheduled cochlear implant surgery.

Main Inclusion Criteria:

Potential participants must fulfil all of the following main inclusion criteria to be eligible for the study:

• Adults aged from 18 years and older;
• Meets the locally approved indication for cochlear implantation. The individual must have freely consented to the cochlear implant surgery before being offered to participate in the SENS-401-203 study;
• Signed and dated written informed consent;

Main Exclusion Criteria:

Individuals will be excluded from the study if any of the following main exclusion criteria apply:

• Moderate to severe renal impairment defined by a creatinine clearance ≤ 60 ml/min
• Any condition that, in the opinion of the Investigator, may compromise the safety or compliance of the participant or would preclude the participant from successful completion of the study
• Unable or unwilling to comply with the protocol requirements
• Known hypersensitivity, allergy or intolerance to the study medication or any history of severe abnormal drug reaction