Alzheimer's DiseasePhase 3IDENTITY-2NCT00762411
Effects of LY450139, on the Progression of Alzheimer's Disease as Compared With Placebo
A Phase 3 study testing LY450139 in people with Alzheimer's Disease, run by Eli Lilly and Company at 91 sites in 18 countries.
Trial summary
Alzheimer's disease (AD) is a fatal degenerative disease of the brain for which there is no cure. AD causes brain cells to die. AD is thought to be caused by an excess of beta amyloid (β-amyloid), a sticky protein in the brain that forms amyloid plaques. Read more about this study
- Who is it for?
- Ages 55 years and older
- Conditions the study is for
- Alzheimer's Disease
- What is being tested?
- LY450139
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,111 participants
- Where
- 91 sitesin 18 countries
- Study dates
- Sep 2008to Apr 2011
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 55 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Meets criteria for mild to moderate Alzheimer's disease (AD) with Mini-Mental State Examination score of 16 through 26 at visit 1
- Modified Hachinski Ischemia Scale score of less than or equal to 4
- Geriatric Depression Scale score of less than or equal to 6
- A magnetic resonance imaging (MRI) or computerized tomography (CT) scan in the last 2 years with no findings inconsistent with a diagnosis of AD
- If female, must be without menstruation for a least 12 consecutive months or have had both ovaries removed.
Who cannot join
- Is not capable of swallowing whole oral medication
- Has serious or unstable illnesses
- Does not have a reliable caregiver
- Chronic alcohol and/or drug abuse within the past 5 years
- Has ever had a active vaccination for AD
Trial locations and contacts
91 sites in 18 countries.
91 sites in 18 countries
United States22 sites
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Albany, New York, 12205
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Boca Raton, Florida, 33431
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Costa Mesa, California, 92626
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Durham, North Carolina, 27710
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Hallandale, Florida, 33009
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Hattiesburg, Mississippi, 39401
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Hollywood, Florida, 33021
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La Jolla, California, 92037
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Laguna Hills, California, 92653
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Los Angeles, California, 90036
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Manhasset, New York, 11030
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Miami, Florida, 33137
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New Orleans, Louisiana, 70131
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Oklahoma City, Oklahoma, 73103
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Omaha, Nebraska, 68105
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Orlando, Florida, 32806
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Oxnard, California, 93030
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Philadelphia, Pennsylvania, 19131
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Phoenix, Arizona, 85004
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San Francisco, California, 94109
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Shreveport, Louisiana, 71104
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Tampa, Florida, 33609
Japan12 sites
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Akita, 010-0874
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Fukuoka, 814-0180
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Hyōgo, 655-0037
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Ibaraki, 305-8576
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Kanagawa, 251-0038
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Kumamoto, 861-8002
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Kyoto, 606-0851
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Nagasaki, 852-8108
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Numakunai, 020-8505
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Osaka, 599-8263
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Saitama, 344-0036
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Tokyo, 113-8655
Canada9 sites
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Greenfield Park, Quebec, J4V 2J2
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London, Ontario, N6C 5J1
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Montreal, Quebec, H1T 2M4
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Ottawa, Ontario, K1N 5C8
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Peterborough, Ontario, K9H2P4
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Saint John, New Brunswick, E2L 3L6
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Toronto, Ontario, M3B2S7
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Verdun, Quebec, H4H 1R3
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Winnipeg, Manitoba, R3N 0K6
Germany5 sites
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Berlin, 10629
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Frankfurt, 60528
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Hamburg, 22083
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Heidelberg, 69115
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Mannheim, 68165
Ukraine5 sites
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Dnipropetrovsk, 49616
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Donetsk, 83037
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Kherson, 73488
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Kyiv, 04080
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Odesa, 65006
France4 sites
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Montpellier, 34295
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Paris, 75651
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Poitiers, 86021
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Strasbourg, 67091
Italy4 sites
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Boggiovara, 41100
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Cassino, 03043
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Milan, 20122
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Parma, 43100
Russia4 sites
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Kazan', 420101
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Saint Petersburg, 190021
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Saratov, 410028
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Yekaterinburg, 620030
Taiwan4 sites
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Changhua, 500
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Tainan, 70403
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Taipei, 111
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Taoyuan, 333
Turkey (Türkiye)4 sites
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Eskişehir, 26480
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Istanbul, 34452
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Izmir, 35340
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Samsun
Brazil3 sites
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Rio de Janeiro, 21020-130
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Salvador, 40301500
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São Paulo, 040024-002
China3 sites
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Beijing, 100853
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Shanghai, 200025
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Xi'an, 710038
Mexico3 sites
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Aguascalientes, 20217
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Monterrey, 64710
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Saltillo, 25000
Hungary2 sites
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Budapest, H-1083
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Esztergom, 2500
Romania2 sites
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Bucharest, 011241
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Timișoara, 300736
Serbia2 sites
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Belgrade, 11000
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Kragujevac, 34000
South Korea2 sites
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Seoul, 139-707
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Suwon, 443-721
Bulgaria1 site
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Sofia, 1527
About this study
Official title: Effect of LY450139 a y-Secretase Inhibitor, on the Progression of Alzheimer's Disease as Compared With Placebo
Alzheimer's disease (AD) is a fatal degenerative disease of the brain for which there is no cure. AD causes brain cells to die. AD is thought to be caused by an excess of beta amyloid (β-amyloid), a sticky protein in the brain that forms amyloid plaques. At autopsy, AD patients are required to have these amyloid plaques in the brain in order to have a definitive diagnosis of AD. Inhibiting the enzyme gamma-secretase (γ-secretase) lowers the production of β-amyloid. Semagacestat (LY450139) is a functional γ-secretase inhibitor and was shown to lower β-amyloid in blood and spinal fluid in humans tested thus far and in blood, spinal fluid and brain in animals tested thus far. This study used several different tests to measure the effect of semagacestat on both β-amyloid and amyloid plaques for some patients. The buildup of amyloid plaques was measured by a brain scan that takes a picture of amyloid plaques in the brain. Other tests measured the overall function of the brain and brain size in some patients. In this trial, patients who initially received placebo (inactive sugar pill) were, at a certain point in the study, switched over to active drug, semagacestat. In other words, all patients could eventually receive active drug. Each patient's participation could last approximately 2 years. Patients taking approved AD medications were permitted to participate in this study and continue taking these medications during the study. All patients who completed this study had the option to continue receiving semagacestat by participating in an open label study.
Preliminary results from this study (LFBC) (and another similar study LFAN [NCT00594568]) showed semagacestat did not slow disease progression and was associated with worsening of clinical measures of cognition and the ability to perform activities of daily living. Study drug was stopped in all studies. LFBC, LFAN and open label LFBF (NCT01035138) have been amended to continue collecting safety data, including cognitive scores, for at least seven months. The CT-Registry will reflect results of analyses from the original protocol in addition to those from the amended protocol.
- Conditions
- Alzheimer's Disease
- Being tested
- LY450139, Placebo
- Keywords
- Alzheimer's Disease
- Medical subject headings
- Alzheimer Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LY450139Drug
Also called Semagacestat
Administered orally once daily.
PlaceboDrug
Administered orally once daily.
| Study group | Role | What they receive |
|---|---|---|
| LY450139 | Experimental | Participants received 60 milligrams (mg) LY450139 orally once daily for 2 weeks followed by 100 mg LY450139 orally once daily for 2 weeks, then 140 mg LY450139 orally once daily until Week 88. Receives: Drug: LY450139 |
| Placebo | Placebo comparator | Participants received placebo orally once daily for the first 76 weeks. At the end of 76 weeks, participants in the placebo arm received LY450139 titrated up to 140 mg orally once daily until Week 88. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Alzheimer's Disease Assessment Scale- Cognitive Subscale (ADAS-Cog11) at 76 Weeks
The cognitive subscale of the ADAS (ADAS Cog11) was used as a primary efficacy measure and consists of 11 items assessing areas of function most typically impaired in Alzheimer's disease (AD): orientation, verbal memory, language, and praxis. The scale ranges from 0 to 70, with higher scores indicating greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Alzheimer's Disease Assessment Scale- Cognitive Subscale (ADAS-Cog11) at 16 Weeks After Cessation of Study Drug
The cognitive subscale of ADAS (ADAS Cog11) consists of 11 items assessing areas of function most typically impaired in Alzheimer's disease (AD): orientation, verbal memory, language, and praxis. The scale ranges from 0 to 70, with higher scores indicating greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 16 weeks following treatment cessation
Change From Baseline in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory (ADCS-ADL) at 76 Weeks
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory (ADCS-ADL) at 16 Weeks After Cessation of Study Drug
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 16 weeks following treatment cessation
Secondary outcomes (25)
Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SB) at 76 Weeks
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Neuropsychiatric Inventory (NPI) at 76 Weeks
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in the Resource Utilization in Dementia-Lite (RUD-Lite) up to 76 Weeks
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. Least Squares (LS) Mean value was controlled for age and investigator.
Measured: Baseline (randomization), up to 76 weeks
Change From Baseline in the EuroQol 5-Dimensional Health-Related Quality of Life Scale Proxy Version (EQ-5D Proxy) Visual Analog Scale (VAS) at 76 Weeks
EQ-5D (proxy version) measures mobility, self-care, usual activities, pain/discomfort, anxiety/depression; each has 3 severity levels (no, some, severe problems) coded to a 1-digit number (1-3). Digits are combined into 5-digit number describing health state. Numerals 1-3 are not added for total score. VAS assesses caregiver's impression of participant's overall health state; scores range: 0 to 100. Lower scores indicate greater disease severity. Least Squares (LS) Mean value controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Quality of Life in Alzheimer's Disease (QoL-AD) at 76 Weeks
Assess 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. Least Squares (LS) Mean value controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Mini Mental State Examination (MMSE) at 76 Weeks
MMSE is a brief screening instrument used to assess cognitive function (orientation, memory, attention, ability to name objects, follow verbal/written commands, write a sentence, and copy figures) in elderly participants. Total score ranges from 0 to 30; lower score indicates greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication
Measured: Baseline (randomization), 76 weeks
Percent Change From Baseline in Amyloid Beta (Aβ) 1-42 Plasma Concentration at 52 Weeks
Concentration of amino acid peptide known as Aβ 1-42 in plasma. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), 52 weeks
Change From Baseline in Positron Emission Tomography (PET) Using Fluorine-18 Fluorodeoxyglucose (18F-FDG) at 76 Weeks
Measurement of local cerebral glucose metabolism by PET using the radioactive tracer 18F-FDG. The outcome reported is the composite summary of the standard uptake value ratio (SUVR) normalized to the Pons. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Hippocampal Volume Using Volumetric Magnetic Resonance Imaging (vMRI) up to 76 Weeks
The vMRI assessment of right and left hippocampal volume is reported. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), up to 76 weeks
Change From Baseline in Amyloid Imaging Positron Emission Tomography (AV-45 PET) up to 76 Weeks
A radioactive tracer for PET that is a ligand for amyloid called [18F]-AV-45. This permits the visualization of amyloid in the brains of Alzheimer's participants. The outcome reported is the composite summary of the standard uptake value ratio (SUVR) normalized to the cerebellar gray matter. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), up to 76 weeks
Change From Baseline in Tau Concentration in Spinal Fluid up to 76 Weeks
Concentration of total tau in spinal fluid. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), up to 76 weeks
LY450139 Population Pharmacokinetics: Clearance of LY450139
Model estimated apparent oral clearance. Clearance is defined as the volume of plasma which is completely cleared of drug (LY450139) per unit time.
Measured: 6 weeks, 12 weeks, and 52 weeks
LY450139 Population Pharmacokinetics: Volume of Distribution of LY450139
Model-estimated apparent volume of distribution. Volume of distribution is a measure of the extent to which drug distributes in the body.
Measured: 6 weeks, 12 weeks, and 52 weeks
Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SB) at 4 Weeks After Cessation of Study Drug
Semi-structured interview. Participant's cognitive status rated across 6 domains of functioning: memory, orientation, judgment/problem solving, community affairs, home/hobbies, personal care. Severity score assigned for each of 6 domains; total score (SB) ranges: 0 to 18. Higher scores=greater disease severity. Least Squares Mean value controlled for baseline value, age, investigator, visit, and concomitant standard of care medication. LY450139 dosing stopped due to evidence of dose-dependent cognitive/functional worsening. Participants followed off-dose for 32 weeks, but CDR-SB not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Neuropsychiatric Inventory (NPI) at 4 Weeks After Cessation of Study Drug
NPI assesses psychopathology in participants with dementia and other neurologic disorders. Information is obtained from a caregiver familiar with participant's behavior. Total score ranges from 12 to 144; higher scores indicate greater disease severity. The Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication. All LY450139 dosing stopped due to evidence of dose-dependent cognitive/functional worsening. Participants were followed off-dose for 32 weeks, but NPI was not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Resource Utilization in Dementia-Lite (RUD-Lite) at 4 Weeks After Cessation of Study Drug
Assesses healthcare resource utilization (formal and informal care). Information gathered on both care-giving time, work status) and participants (accommodation, healthcare resource utilization) is collected. Reported number of participant hospitalizations. Least Squares (LS) Mean value controlled for age and investigator. All LY450139 dosing was stopped due to evidence of dose-dependent cognitive/functional worsening. Participants were followed off-dose for 32 weeks, but RUD-Lite was not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in EuroQol 5-Dimensional Health-Related Quality of Life Scale Proxy Version (EQ-5D Proxy) Visual Analog Scale (VAS) at 4 Weeks After Cessation of Study Drug
EQ-5D (proxy version) measures mobility, self-care, usual activities, pain/discomfort, anxiety/depression. 3 severity levels: no, some, severe problems. VAS assesses caregiver's impression of participant's health state; score ranges: 0 to 100. Lower scores=greater disease severity. Least Squares (LS) Mean value controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication. All LY450139 dosing was stopped due to evidence of dose-dependent cognitive/functional worsening. Participants were followed off-dose for 32 weeks, but EQ-5D VAS was not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Quality of Life in Alzheimer's Disease (QoL-AD) at 4 Weeks After Cessation of Study Drug
Assess 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: 13-52). Higher scores=greater QoL. Participant's primary caregiver asked to complete same measure. Least Squares Mean value controlled for baseline, age, investigator, visit, and concomitant standard of care (SOC) medication. All LY450139 dosing was stopped due to evidence of dose-dependent cognitive/functional worsening. Participants were followed off-dose for 32 weeks, but QoL-AD not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Mini Mental State Examination (MMSE) 4 Weeks After Cessation of Study Drug
Used to assess cognitive function (orientation, memory, attention, ability to name objects, follow verbal/written commands, write a sentence, and copy figures) in elderly participants. Total score ranges: 0 to 30. Lower score indicates greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication. All LY450139 dosing was stopped due to evidence of dose-dependent cognitive/functional worsening. Participants were followed off-dose for 32 weeks, but MMSE was not assessed.
Measured: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog12) at 76 Weeks
ADAS-Cog12 is ADAS-Cog11 augmented with delayed free recall measure, resulting in a total score ranging from 0 to 80. Higher scores indicate greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Alzheimer's Disease Assessment Scale (ADAS-Cog14) at 76 Weeks
ADAS-Cog14 is ADAS-Cog11 augmented with delayed free recall, digit cancellation, and maze completion measures. A score of 0 to 10 for delayed free recall and a conversion code of 0 to 5 for digit cancellation and maze completion provide total score ranges for this extended ADAS-Cog14 of 0 to 90. Higher scores indicate greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 76 weeks
Change From Baseline in Phosphorylated-Tau (P-tau) Concentration in Spinal Fluid up to 76 Weeks
Concentration of p-tau in spinal fluid. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), up to 76 weeks
Change From Baseline in Amyloid Beta (Aβ) 1-42 Concentration in Spinal Fluid up to 76 Weeks
Concentration of an amino acid peptide known as Aβ 1-42 in spinal fluid. Least Squares (LS) Mean value was controlled for baseline value, age, and investigator.
Measured: Baseline (randomization), up to 76 weeks
Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog12) at 16 Weeks After Cessation of Study Drug
ADAS-Cog12 is ADAS-Cog11 augmented with delayed free recall measure, resulting in a total score ranging from 0 to 80. Higher scores indicate greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 16 weeks following treatment cessation
Change From Baseline in Alzheimer's Disease Assessment Scale (ADAS-Cog14) at 16 Weeks After Cessation of Study Drug
ADAS-Cog14 is ADAS-Cog11 augmented with delayed free recall, digit cancellation, and maze completion measures. A score of 0 to 10 for delayed free recall and a conversion code of 0 to 5 for digit cancellation and maze completion provide total score ranges for this extended ADAS-Cog14 of 0 to 90. Higher scores indicate greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, concomitant standard of care (SOC) medication.
Measured: Baseline (randomization), 16 weeks following treatment cessation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Sep 2008 (estimated)
- Study startSep 2008
- Primary completionApr 2011
- Study completionApr 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Alzheimer's DiseaseStudies of the same condition, open and under way.
- More trials run by Eli Lilly and CompanyThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 1,111 participants (actual)
Sponsor and investigators
- Lead sponsor
- Eli Lilly and Company
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Call 1-877-CTLILLY (1-877-285-4559 or 1-317-615-4559 Mon - Fri 9 AM - 5 PM eastern time (UTC/GMT - 5 hours, EST), Study director, Eli Lilly and Company
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00762411
- Sponsor's protocol ID
- 11271
- Other IDs
- H6L-MC-LFBC
- Acronym
- IDENTITY-2
- Status last verified
- Jan 2015
- First submitted
- 26 Sep 2008
- Last updated
- 16 Feb 2015
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Liu-Seifert H, Siemers E, Price K, Han B, Selzler KJ, Henley D, Sundell K, Aisen P, Cummings J, Raskin J, Mohs R; Alzheimer's Disease Neuroimaging Initiative. Cognitive Impairment Precedes and Predicts Functional Impairment in Mild Alzheimer's Disease. J Alzheimers Dis. 2015;47(1):205-14. doi: 10.3233/JAD-142508.
PubMed 26402769Henley DB, Dowsett SA, Chen YF, Liu-Seifert H, Grill JD, Doody RS, Aisen P, Raman R, Miller DS, Hake AM, Cummings J. Alzheimer's disease progression by geographical region in a clinical trial setting. Alzheimers Res Ther. 2015 Jun 25;7(1):43. doi: 10.1186/s13195-015-0127-0. eCollection 2015.
PubMed 26120369
Study at a glance
From the registry record, last updated by the sponsor on 16 Feb 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of LY450139 a y-Secretase Inhibitor, on the Progression of Alzheimer's Disease as Compared With Placebo
- ClinicalTrials.gov ID
- NCT00762411
- Acronym / sponsor ID
- IDENTITY-2 / 11271
- Conditions
- Alzheimer's Disease
- Keywords
- Alzheimer's Disease
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,111 participants (actual)
- Lead sponsor
- Eli Lilly and CompanyIndustry (pharma, biotech, devices)
- Study start
- Sep 2008
- Primary completion
- Apr 2011 (actual)
- Study completion
- Apr 2011 (actual)
- First posted
- 30 Sep 2008 (estimated)
- Results
- Posted 25 Sep 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Alzheimer's disease (AD) is a fatal degenerative disease of the brain for which there is no cure. AD causes brain cells to die. AD is thought to be caused by an excess of beta amyloid (β-amyloid), a sticky protein in the brain that forms amyloid plaques. At autopsy, AD patients are required to have these amyloid plaques in the brain in order to have a definitive diagnosis of AD. Inhibiting the enzyme gamma-secretase (γ-secretase) lowers the production of β-amyloid. Semagacestat (LY450139) is a functional γ-secretase inhibitor and was shown to lower β-amyloid in blood and spinal fluid in humans tested thus far and in blood, spinal fluid and brain in animals tested thus far. This study used several different tests to measure the effect of semagacestat on both β-amyloid and amyloid plaques for some patients. The buildup of amyloid plaques was measured by a brain scan that takes a picture of amyloid plaques in the brain. Other tests measured the overall function of the brain and brain size in some patients. In this trial, patients who initially received placebo (inactive sugar pill) were, at a certain point in the study, switched over to active drug, semagacestat. In other words, all patients could eventually receive active drug. Each patient's participation could last approximately 2 years. Patients taking approved AD medications were permitted to participate in this study and continue taking these medications during the study. All patients who completed this study had the option to continue receiving semagacestat by participating in an open label study.
Preliminary results from this study (LFBC) (and another similar study LFAN [NCT00594568]) showed semagacestat did not slow disease progression and was associated with worsening of clinical measures of cognition and the ability to perform activities of daily living. Study drug was stopped in all studies. LFBC, LFAN and open label LFBF (NCT01035138) have been amended to continue collecting safety data, including cognitive scores, for at least seven months. The CT-Registry will reflect results of analyses from the original protocol in addition to those from the amended protocol.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| LY450139 | Experimental | Drug: LY450139Participants received 60 milligrams (mg) LY450139 orally once daily for 2 weeks followed by 100 mg LY450139 orally once daily for 2 weeks, then 140 mg LY450139 orally once daily until Week 88. |
| Placebo | Placebo comparator | Drug: PlaceboParticipants received placebo orally once daily for the first 76 weeks. At the end of 76 weeks, participants in the placebo arm received LY450139 titrated up to 140 mg orally once daily until Week 88. |
Who may qualify
- Ages
- 55 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Meets criteria for mild to moderate Alzheimer's disease (AD) with Mini-Mental State Examination score of 16 through 26 at visit 1
- Modified Hachinski Ischemia Scale score of less than or equal to 4
- Geriatric Depression Scale score of less than or equal to 6
- A magnetic resonance imaging (MRI) or computerized tomography (CT) scan in the last 2 years with no findings inconsistent with a diagnosis of AD
- If female, must be without menstruation for a least 12 consecutive months or have had both ovaries removed.
Key exclusion criteria (5 listed)
- Is not capable of swallowing whole oral medication
- Has serious or unstable illnesses
- Does not have a reliable caregiver
- Chronic alcohol and/or drug abuse within the past 5 years
- Has ever had a active vaccination for AD
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| LY450139Also: SemagacestatAdministered orally once daily. | Drug | LY450139 |
| PlaceboAdministered orally once daily. | Drug | Placebo |
Primary outcome
Change From Baseline in Alzheimer's Disease Assessment Scale- Cognitive Subscale (ADAS-Cog11) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
The cognitive subscale of the ADAS (ADAS Cog11) was used as a primary efficacy measure and consists of 11 items assessing areas of function most typically impaired in Alzheimer's disease (AD): orientation, verbal memory, language, and praxis. The scale ranges from 0 to 70, with higher scores indicating greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Change From Baseline in Alzheimer's Disease Assessment Scale- Cognitive Subscale (ADAS-Cog11) at 16 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 16 weeks following treatment cessation
The cognitive subscale of ADAS (ADAS Cog11) consists of 11 items assessing areas of function most typically impaired in Alzheimer's disease (AD): orientation, verbal memory, language, and praxis. The scale ranges from 0 to 70, with higher scores indicating greater disease severity. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Change From Baseline in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory (ADCS-ADL) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
Change From Baseline in Alzheimer's Disease Cooperative Study Activities of Daily Living Inventory (ADCS-ADL) at 16 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 16 weeks following treatment cessation
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. Least Squares (LS) Mean value was controlled for baseline value, age, investigator, visit, and concomitant standard of care (SOC) medication.
25 secondary outcomes
Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SB) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Neuropsychiatric Inventory (NPI) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in the Resource Utilization in Dementia-Lite (RUD-Lite) up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
Change From Baseline in the EuroQol 5-Dimensional Health-Related Quality of Life Scale Proxy Version (EQ-5D Proxy) Visual Analog Scale (VAS) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Quality of Life in Alzheimer's Disease (QoL-AD) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Mini Mental State Examination (MMSE) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Percent Change From Baseline in Amyloid Beta (Aβ) 1-42 Plasma Concentration at 52 Weeks
Time frame: Baseline (randomization), 52 weeks
Change From Baseline in Positron Emission Tomography (PET) Using Fluorine-18 Fluorodeoxyglucose (18F-FDG) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Hippocampal Volume Using Volumetric Magnetic Resonance Imaging (vMRI) up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
Change From Baseline in Amyloid Imaging Positron Emission Tomography (AV-45 PET) up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
Change From Baseline in Tau Concentration in Spinal Fluid up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
LY450139 Population Pharmacokinetics: Clearance of LY450139
Time frame: 6 weeks, 12 weeks, and 52 weeks
LY450139 Population Pharmacokinetics: Volume of Distribution of LY450139
Time frame: 6 weeks, 12 weeks, and 52 weeks
Change From Baseline in Clinical Dementia Rating Sum of Boxes (CDR-SB) at 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Neuropsychiatric Inventory (NPI) at 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Resource Utilization in Dementia-Lite (RUD-Lite) at 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in EuroQol 5-Dimensional Health-Related Quality of Life Scale Proxy Version (EQ-5D Proxy) Visual Analog Scale (VAS) at 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Quality of Life in Alzheimer's Disease (QoL-AD) at 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Mini Mental State Examination (MMSE) 4 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 4 weeks following treatment cessation
Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog12) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Alzheimer's Disease Assessment Scale (ADAS-Cog14) at 76 Weeks
Time frame: Baseline (randomization), 76 weeks
Change From Baseline in Phosphorylated-Tau (P-tau) Concentration in Spinal Fluid up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
Change From Baseline in Amyloid Beta (Aβ) 1-42 Concentration in Spinal Fluid up to 76 Weeks
Time frame: Baseline (randomization), up to 76 weeks
Change From Baseline in Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog12) at 16 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 16 weeks following treatment cessation
Change From Baseline in Alzheimer's Disease Assessment Scale (ADAS-Cog14) at 16 Weeks After Cessation of Study Drug
Time frame: Baseline (randomization), 16 weeks following treatment cessation
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Feb 2015.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 26402769Liu-Seifert H, Siemers E, Price K, Han B, Selzler KJ, Henley D, Sundell K, Aisen P, Cummings J, Raskin J, Mohs R; Alzheimer's Disease Neuroimaging Initiative. Cognitive Impairment Precedes and Predicts Functional Impairment in Mild Alzheimer's Disease. J Alzheimers Dis. 2015;47(1):205-14. doi: 10.3233/JAD-142508.
- Derived from this study: PubMed 26120369Henley DB, Dowsett SA, Chen YF, Liu-Seifert H, Grill JD, Doody RS, Aisen P, Raman R, Miller DS, Hake AM, Cummings J. Alzheimer's disease progression by geographical region in a clinical trial setting. Alzheimers Res Ther. 2015 Jun 25;7(1):43. doi: 10.1186/s13195-015-0127-0. eCollection 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Call 1-877-CTLILLY (1-877-285-4559 or 1-317-615-4559 Mon - Fri 9 AM - 5 PM eastern time (UTC/GMT - 5 hours, EST) study director
Eli Lilly and Company
91 sites in 18 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing LY450139 in people with Alzheimer's Disease, run by Eli Lilly and Company at 91 sites in 18 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Feb 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 91 sites in United States, Japan, Canada, Germany, Ukraine and 13 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 25 Sep 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline in Alzheimer's Disease Assessment Scale- Cognitive Subscale (ADAS-Cog11) at 76 Weeks (time frame: Baseline (randomization), 76 weeks). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00762411, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Feb 2015.