Progress of Mild Alzheimer's Disease in Participants on Solanezumab Versus Placebo

Change From Baseline in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory (ADCS-ADL)

The ADCS-ADL is a 23-item inventory developed as a rater-administered questionnaire answered by the participant's caregiver. The ADCS-ADL measures both basic and instrumental activities of daily living by participants. The total score ranges from 0 to 78, with lower scores indicating greater disease severity. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Functional Activities Questionnaire (FAQ)

FAQ is a 10-item, caregiver-based questionnaire and was administered to the study partner who was asked to rate the participant's ability to perform a variety of activities ranging from financial management, shopping, playing games, food preparation, traveling, keeping appointments, keeping track of current events, and understanding media. FAQ total score was calculated by adding the scores from each of the 10 items. A negative change indicated an improvement from baseline. FAQ Total Score is the sum of 10 items, ranging from 0 (best possible outcome) to 100 (worst possible outcome). LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Clinical Dementia Rating-Sum of Boxes (CDR-SB)

CDR-SB is a semi-structured interview of participants and their caregivers. Participant's cognitive status is rated across 6 domains of functioning, including memory, orientation, judgment/problem solving, community affairs, home/hobbies, and personal care. Severity score assigned for each of 6 domains; total score (SB) ranges from 0 to 18. Higher scores indicate greater disease severity. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Neuropsychiatric Inventory (NPI)

NPI assesses psychopathology in participants with dementia and other neurologic disorders. Information is obtained from a caregiver familiar with the participant's behavior. Total score ranges from 12 to 144; Higher scores indicate greater disease severity. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Resource Utilization in Dementia-Lite (RUD-Lite)

Assesses healthcare resource utilization (formal and informal care). Information gathered on both caregivers (care-giving time, work status) and participants (accommodation and healthcare resource utilization) was gathered from baseline and follow-up interviews. Reported number of hospitalizations per participant up to 76 weeks. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Quality of Life in Alzheimer's Disease (QoL-AD)

Assesses QoL for AD: participant rates mood, relationships, memory, finances, physical condition, and overall QoL assessment. Each of 13 items, rated on a 4-point scale. Sum of items=total score (range: 13 to 52). Higher scores indicate greater QoL. Participant's primary caregiver asked to complete same measure. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in 5-Dimensional EuroQol Quality of Life Scale Proxy Version (EQ-5D Proxy)

EQ-5D (proxy version) measures mobility, self-care, usual activities, pain/discomfort, anxiety/depression. 3 severity levels: no, some, severe problems. Visual analog scale (VAS) assesses caregiver's impression of participant's health state; score ranges: 0 to 100 millimeter (mm). Lower scores=greater disease severity LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Integrated Alzheimer's Disease Rating Scale (iADRS)

Integrated Alzheimer's Disease Rating Scale is used to assess that solanezumab slows down the cognitive and functional decline associated with AD compared with placebo. iADRS is a simple linear combination of ADAS-Cog 13 or 14 and the ADCS-iADL. The scale ranges from 0 to 146, where lower scores indicate worse performance. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Percentage of Participants of Cognitive and Functional Responders

Assess the proportion of participants who reach certain levels of cognitive and functional decline. Decline in cognition was defined as worsening from baseline by at least 6 or 9 points on the ADAS Cog14. If there is a cognitive decline of a specified cut-off or more at any time then the participant is considered a nonresponder. Functional nonresponders are participants who have not had any of the following at any time point: Clinically evident decline in ability to perform one or more basic ADL present at baseline; A clinically evident decline in ability to perform 20% or more of the instrumental ADL present at baseline; An increase in global CDR score of 1 point or more compared with baseline. A decline from no impairment to mild impairment (bADL, iADL is not considered clinically significant, but other declines of 1 or more points and any participant discontinuation within the first 6 months will be considered a non-responder.

Time frame: Baseline through Week 80

Change From Baseline in Plasma Amyloid-Beta (Aβ) Species

Concentration of amino acid peptide known as Aβ 1-42 in plasma. The change in plasma Aβ analytes after treatment were assessed separately for each plasma Aβ parameter. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Change From Baseline in Volumetric Magnetic Resonance Imaging (vMRI)

The vMRI assessment of right and left hippocampal atrophy, is reported. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80

Pharmacokinetics (PK): Area Under the Concentration Time Curve (AUC) of Solanezumab (LY2062430)

Area Under the Concentration versus Time Curve was evaluated for Solanezumab.

Time frame: Visit 2 (Post-dose), Visit 5, 9, 15 (Pre-dose, Post-dose) and Visit 22 (Pre-dose): Pre-dose before the infusion, Post-dose 30 minutes End of Infusion

Change From Baseline in Florbetapir Positron Emission Tomography (PET) Scan

Florbetapir PET imaging was used to confirm the presence of amyloid pathology consistent with AD. Change from baseline was done to test the hypothesis that amyloid burden was reduced in participants in the treatment group. The change from baseline to the postbaseline visit of the composite summary standard uptake value ratio of florbetapir F18 was calculated. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit. The composite summary measure is an unweighted average of the 6 smaller regions (anterior cingulate, frontal medial orbital, parietal, posterior cingulate, precuneus, and temporal) normalized to whole cerebellum or subject-specific white matter.

Time frame: Baseline, Week 80

Change From Baseline in Cerebrospinal Fluid (CSF) Aβ Levels

Concentration of CSF parameters includes amino acid peptide known as Aβ 1-42 and Aβ 1-42. Analyses of these CSF biomarkers was conducted in a subset of participants (as an addendum to the protocol). The dependent variable for each CSF parameter was its change from baseline to endpoint. LS Mean value was controlled for baseline value, baseline age, pooled investigator, treatment and visit.

Time frame: Baseline, Week 80