Title
Safety, Tolerability, and Pharmacokinetics of C2N-8E12 in Subjects With Progressive Supranuclear Palsy
A Double-Blind, Placebo Controlled, Single Ascending Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of C2N-8E12 in Subjects With Progressive Supranuclear Palsy
Phase
Phase 1Lead Sponsor
C2N DiagnosticsStudy Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Progressive Supranuclear PalsyIntervention/Treatment
abbv-8e12 ...Study Participants
32This study will evaluate the safety and tolerability (maximum tolerated dose (MTD) within the specified dosing range) of single intravenous (IV) infusion of C2N-8E12 in patients with progressive supranuclear palsy (PSP).
This study evaluates the safety, tolerability, pharmacokinetics, and maximum tolerated dose (within dosing range) of intravenous (IV) infusion of C2N-8E12 in 32 patients with progressive supranuclear palsy (PSP). Four sequential cohorts will receive increasing single doses of either C2N-8E12 or placebo. Out of every 4 patients enrolled 3 patients will receive drug and 1 will receive placebo. Study participants will be followed for a minimum of 2 months post-treatment to monitor for the safety, tolerability, pharmacokinetics, and immunogenicity of C2N-8E12.
C2N-8E12 is a humanized recombinant anti-human tau antibody.
Subjects will be block randomized to receive a single dose of C2N-8E12 or placebo in two blocks of 4 subjects (3:1, C2N-8E12:placebo) per cohort.
Key Inclusion Criteria: Meets NINDS-SPSP possible or probable criteria as modified for NNIPPS and AL-108-231 clinical trials Brain MRI at Screening is consistent with PSP; Stable medications for Parkinsonism for at least 2 months prior to Screening; Agree to use protocol specified methods of contraception. Key Exclusion Criteria: Signs of a progressive neurological disorder that better meets the criteria for types of neurological disorders other than PSP; Currently on any other biologic or immunomodulatory therapy; Subjects that reside at a skilled nursing or dementia care facility; Diagnosis of any other significant unrelated neurological or psychiatric disorders that could account for cognitive deficits; Untreated major depression at baseline evaluation, based on clinical judgment and results in geriatric depression scale; Unable to tolerate MRI scan at Screening or any other contraindication to MRI; Any contraindication to or unable to tolerate lumbar puncture at Screening, including use of anti-coagulant medications.