Trial Outcomes & Findings for Efficacy and Safety of T-817MA in Patients With Mild to Moderate Alzheimer's Disease (US202) (NCT NCT02079909)

NCT ID: NCT02079909

Last Updated: 2019-02-26

Results Overview

The ADAS-cog (Alzheimer's Disease Assessment Scale-cognitive subscale) is a structured scale that evaluates memory (word recall, word recognition), reasoning (following commands), language (naming, comprehension), orientation, ideational praxis (placing letter in envelope) and constructional praxis (copying geometric designs). Ratings of spoken language, language comprehension, word finding difficulty, and ability to remember test instructions are also obtained. The test is scored in terms of errors, with higher scores reflecting poorer performance and greater impairment. Scores can range from 0 (best) to 70 (worse).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

482 participants

Primary outcome timeframe

Baseline and 52 weeks

Results posted on

2019-02-26

Participant Flow

Participant milestones

Participant milestones
Measure
T-817MA-H
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
Placebo once daily Placebo: Placebo
Overall Study
STARTED
158
166
158
Overall Study
COMPLETED
120
117
140
Overall Study
NOT COMPLETED
38
49
18

Reasons for withdrawal

Reasons for withdrawal
Measure
T-817MA-H
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
Placebo once daily Placebo: Placebo
Overall Study
Adverse Event
23
23
7
Overall Study
Withdrawal by Subject
9
17
4
Overall Study
Lost to Follow-up
2
3
1
Overall Study
Death
2
2
0
Overall Study
Lack of Efficacy
0
0
1
Overall Study
Protocol Violation
0
1
1
Overall Study
Physician Decision
0
1
1
Overall Study
Relocation etc.
2
2
3

Baseline Characteristics

Efficacy and Safety of T-817MA in Patients With Mild to Moderate Alzheimer's Disease (US202)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
T-817MA-H
n=154 Participants
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=159 Participants
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=156 Participants
Placebo once daily Placebo: Placebo
Total
n=469 Participants
Total of all reporting groups
Age, Continuous
71.8 years
STANDARD_DEVIATION 7.8 • n=5 Participants
71.9 years
STANDARD_DEVIATION 8.2 • n=7 Participants
71.8 years
STANDARD_DEVIATION 7.5 • n=5 Participants
71.9 years
STANDARD_DEVIATION 7.8 • n=4 Participants
Sex: Female, Male
Female
82 Participants
n=5 Participants
81 Participants
n=7 Participants
89 Participants
n=5 Participants
252 Participants
n=4 Participants
Sex: Female, Male
Male
72 Participants
n=5 Participants
78 Participants
n=7 Participants
67 Participants
n=5 Participants
217 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
3 Participants
n=7 Participants
2 Participants
n=5 Participants
8 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
8 Participants
n=5 Participants
7 Participants
n=7 Participants
11 Participants
n=5 Participants
26 Participants
n=4 Participants
Race (NIH/OMB)
White
140 Participants
n=5 Participants
146 Participants
n=7 Participants
142 Participants
n=5 Participants
428 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
3 Participants
n=4 Participants
ApoE4 genotype
Non-carriers
54 Participants
n=5 Participants
57 Participants
n=7 Participants
50 Participants
n=5 Participants
161 Participants
n=4 Participants
ApoE4 genotype
Heterozygotes
55 Participants
n=5 Participants
74 Participants
n=7 Participants
71 Participants
n=5 Participants
200 Participants
n=4 Participants
ApoE4 genotype
Homozygotes
32 Participants
n=5 Participants
21 Participants
n=7 Participants
27 Participants
n=5 Participants
80 Participants
n=4 Participants
ApoE4 genotype
Unknown
13 Participants
n=5 Participants
7 Participants
n=7 Participants
8 Participants
n=5 Participants
28 Participants
n=4 Participants
MMSE
18.4 units on a scale
STANDARD_DEVIATION 3.9 • n=5 Participants
18.2 units on a scale
STANDARD_DEVIATION 3.8 • n=7 Participants
18.2 units on a scale
STANDARD_DEVIATION 3.8 • n=5 Participants
18.3 units on a scale
STANDARD_DEVIATION 3.8 • n=4 Participants

PRIMARY outcome

Timeframe: Baseline and 52 weeks

Population: The overall number of participants display the numbers of patients who were included in the mITT population and had baseline and at least one post-baseline ADAS-cog evaluation.

The ADAS-cog (Alzheimer's Disease Assessment Scale-cognitive subscale) is a structured scale that evaluates memory (word recall, word recognition), reasoning (following commands), language (naming, comprehension), orientation, ideational praxis (placing letter in envelope) and constructional praxis (copying geometric designs). Ratings of spoken language, language comprehension, word finding difficulty, and ability to remember test instructions are also obtained. The test is scored in terms of errors, with higher scores reflecting poorer performance and greater impairment. Scores can range from 0 (best) to 70 (worse).

Outcome measures

Outcome measures
Measure
T-817MA-H
n=117 Participants
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=115 Participants
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=137 Participants
Placebo once daily Placebo: Placebo
ADAS-cog Change From Baseline to Week 52
7.08 units on a scale
Standard Error 0.756
7.45 units on a scale
Standard Error 0.756
7.91 units on a scale
Standard Error 0.727

PRIMARY outcome

Timeframe: 52 weeks

Population: The overall number of participants display the numbers of patients who were included in the mITT population and had at least one post-baseline CGIC evaluation.

The ADCS-CGIC (Alzheimer's Disease Cooperative Study-Clinical Global Impression of Change) is a validated categorical measure of change in the patient's clinical condition between baseline and follow-up visits. It measures whether the effects of active treatment are substantial enough to be detected by a skilled and experienced clinician on the basis of a clinical interview and examination. It relies on both direct examination of the patient and an interview of the study partner. A skilled and experienced clinician who is blinded to treatment assignment rates the patient on a 7-point Likert scale, ranging from 1 (marked improvement) to 7 (marked worsening). It is suggested that the instrument has distinct clinical utility in assessing change in AD clinical trials.

Outcome measures

Outcome measures
Measure
T-817MA-H
n=118 Participants
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=116 Participants
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=138 Participants
Placebo once daily Placebo: Placebo
CGIC
5.25 units on a scale
Standard Error 0.1
5.24 units on a scale
Standard Error 0.1
5.22 units on a scale
Standard Error 0.1

SECONDARY outcome

Timeframe: Baseline and 52 weeks

Population: The overall number of participants display the numbers of patients who were included in the mITT population and had baseline and at least one post-baseline ADCS-ADL evaluation.

The ADCS-ADL (Alzheimer's Disease Cooperative Study Activities of Daily Living) is a validated tool for assessing instrumental and basic activities of daily living based on a 23-item structured interview of the study partner. The scale has a range of 0 to 78, with lower scores indicating greater impairment.

Outcome measures

Outcome measures
Measure
T-817MA-H
n=118 Participants
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=118 Participants
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=140 Participants
Placebo once daily Placebo: Placebo
ADCS-ADL Change From Baseline to Week 52
-10.01 units on a scale
Standard Error 0.991
-11.07 units on a scale
Standard Error 0.992
-11.29 units on a scale
Standard Error 0.957

Adverse Events

T-817MA-H

Serious events: 26 serious events
Other events: 132 other events
Deaths: 2 deaths

T-817MA-L

Serious events: 25 serious events
Other events: 133 other events
Deaths: 2 deaths

Placebo

Serious events: 20 serious events
Other events: 119 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
T-817MA-H
n=158 participants at risk
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=166 participants at risk
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=158 participants at risk
Placebo once daily Placebo: Placebo
Blood and lymphatic system disorders
Anaemia Macrocytic
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Cardiac disorders
Acute Myocardial Infarction
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Cardiac disorders
Atrial Fibrillation
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Cardiac disorders
Atrioventricular Block Complete
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Cardiac disorders
Bradycardia
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Cardiac disorders
Cardiac Arrest
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Cardiac disorders
Myocardial Infarction
0.63%
1/158 • 52weeks
0.60%
1/166 • 52weeks
0.63%
1/158 • 52weeks
Ear and labyrinth disorders
Vertigo Positional
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Gastrointestinal disorders
Diarrhoea
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Gastrointestinal disorders
Duodenal Ulcer Haemorrhage
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Gastrointestinal disorders
Megacolon
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Gastrointestinal disorders
Pancreatitis
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Gastrointestinal disorders
Pancreatitis Acute
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
General disorders
Asthenia
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
General disorders
Chest Pain
0.00%
0/158 • 52weeks
1.2%
2/166 • 52weeks
0.63%
1/158 • 52weeks
General disorders
Non-Cardiac Chest Pain
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Hepatobiliary disorders
Cholelithiasis
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Hepatobiliary disorders
Hepatitis
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Cellulitis
1.3%
2/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Clostridium Difficile Infection
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Cystitis
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Infections and infestations
Diverticulitis
0.63%
1/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Gastroenteritis
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Pneumonia
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Infections and infestations
Pneumonia Influenzal
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Sepsis
0.00%
0/158 • 52weeks
1.2%
2/166 • 52weeks
0.00%
0/158 • 52weeks
Infections and infestations
Urinary Tract Infection
1.3%
2/158 • 52weeks
0.60%
1/166 • 52weeks
0.63%
1/158 • 52weeks
Injury, poisoning and procedural complications
Fall
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Femoral Neck Fracture
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Femur Fracture
0.63%
1/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Hip Fracture
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.63%
1/158 • 52weeks
Injury, poisoning and procedural complications
Humerus Fracture
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Injury, poisoning and procedural complications
Joint Injury
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Laceration
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Injury, poisoning and procedural complications
Multiple Fractures
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Post Procedural Haemorrhage
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Rib Fracture
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Injury, poisoning and procedural complications
Subdural Haematoma
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Metabolism and nutrition disorders
Dehydration
1.3%
2/158 • 52weeks
1.2%
2/166 • 52weeks
0.00%
0/158 • 52weeks
Metabolism and nutrition disorders
Hypokalaemia
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Musculoskeletal and connective tissue disorders
Chondrocalcinosis Pyrophosphate
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Adenocarcinoma of Colon
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast Cancer
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast Cancer Metastatic
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Altered State of Consciousness
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Nervous system disorders
Cerebral Haematoma
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Cerebral Haemorrhage
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Cerebrovascular Accident
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Hydrocephalus
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Loss of Consciousness
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Nervous system disorders
Syncope
0.00%
0/158 • 52weeks
1.2%
2/166 • 52weeks
1.9%
3/158 • 52weeks
Nervous system disorders
Transient Ischaemic Attack
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Psychiatric disorders
Abnormal Behaviour
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Psychiatric disorders
Agitation
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Psychiatric disorders
Completed Suicide
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Psychiatric disorders
Confusional State
0.63%
1/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Psychiatric disorders
Delirium
1.9%
3/158 • 52weeks
0.60%
1/166 • 52weeks
0.63%
1/158 • 52weeks
Psychiatric disorders
Mental Status Changes
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Psychiatric disorders
Paranoia
0.63%
1/158 • 52weeks
0.00%
0/166 • 52weeks
0.00%
0/158 • 52weeks
Renal and urinary disorders
Renal Failure
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Renal and urinary disorders
Urinary Retention
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Reproductive system and breast disorders
Vaginal Haemorrhage
0.00%
0/158 • 52weeks
0.60%
1/166 • 52weeks
0.00%
0/158 • 52weeks
Respiratory, thoracic and mediastinal disorders
Pulmonary Embolism
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks
Respiratory, thoracic and mediastinal disorders
Pulmonary Oedema
0.00%
0/158 • 52weeks
0.00%
0/166 • 52weeks
0.63%
1/158 • 52weeks

Other adverse events

Other adverse events
Measure
T-817MA-H
n=158 participants at risk
224 mg T-817MA once daily for first 4 weeks and 448 mg T-817MA once daily for the following weeks. T-817MA-H: 224 mg or 448 mg T-817 MA once daily
T-817MA-L
n=166 participants at risk
224 mg T-817MA once daily T-817MA-L: 224 mg T-817 MA once daily
Placebo
n=158 participants at risk
Placebo once daily Placebo: Placebo
Infections and infestations
Nasopharyngitis
2.5%
4/158 • 52weeks
2.4%
4/166 • 52weeks
5.7%
9/158 • 52weeks
Infections and infestations
Urinary tract infection
13.3%
21/158 • 52weeks
10.2%
17/166 • 52weeks
13.9%
22/158 • 52weeks
Psychiatric disorders
Agitation
2.5%
4/158 • 52weeks
3.0%
5/166 • 52weeks
8.9%
14/158 • 52weeks
Psychiatric disorders
Anxiety
4.4%
7/158 • 52weeks
5.4%
9/166 • 52weeks
7.6%
12/158 • 52weeks
Psychiatric disorders
Depression
5.1%
8/158 • 52weeks
3.6%
6/166 • 52weeks
4.4%
7/158 • 52weeks
Nervous system disorders
Dizziness
7.0%
11/158 • 52weeks
4.2%
7/166 • 52weeks
1.9%
3/158 • 52weeks
Nervous system disorders
Headache
5.7%
9/158 • 52weeks
9.6%
16/166 • 52weeks
6.3%
10/158 • 52weeks
Gastrointestinal disorders
Diarrhoea
31.0%
49/158 • 52weeks
20.5%
34/166 • 52weeks
12.7%
20/158 • 52weeks
Gastrointestinal disorders
Nausea
5.7%
9/158 • 52weeks
7.8%
13/166 • 52weeks
3.8%
6/158 • 52weeks
Gastrointestinal disorders
Vomiting
5.7%
9/158 • 52weeks
4.8%
8/166 • 52weeks
4.4%
7/158 • 52weeks
Investigations
Weight decreased
5.1%
8/158 • 52weeks
2.4%
4/166 • 52weeks
1.9%
3/158 • 52weeks
Injury, poisoning and procedural complications
Fall
7.6%
12/158 • 52weeks
8.4%
14/166 • 52weeks
10.8%
17/158 • 52weeks

Additional Information

Project Manager

FUJIFILM Toyama Chemical

Phone: +81-3-6427-6245

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place