Trial Outcomes & Findings for Intravenous CTLA4-lg Treatment in Recent Onset Type 1 Diabetes Mellitus (NCT NCT00505375)

NCT ID: NCT00505375

Last Updated: 2020-05-06

Results Overview

The primary outcome is the area under the stimulated C-peptide curve (AUC) based on data collected at time 0 to 2 hours of a 4-hour mixed meal glucose tolerance test (MMTT) conducted at the primary endpoint visit. The timed measurements are done at: 0, 15, 30 60, 90, and 120 minutes.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

112 participants

Primary outcome timeframe

2 years of follow up

Results posted on

2020-05-06

Participant Flow

Participant milestones

Participant milestones
Measure
CTLA-4 Ig
Intravenous infusions of CTLA-4 Ig CTLA-4 Ig: Intravenous infusion of 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
Intravenous infusions of placebo Placebo: Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Overall Study
STARTED
77
35
Overall Study
COMPLETED
73
30
Overall Study
NOT COMPLETED
4
5

Reasons for withdrawal

Reasons for withdrawal
Measure
CTLA-4 Ig
Intravenous infusions of CTLA-4 Ig CTLA-4 Ig: Intravenous infusion of 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
Intravenous infusions of placebo Placebo: Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Overall Study
Death
1
0
Overall Study
Withdrawal by Subject
2
2
Overall Study
Lost to Follow-up
0
2
Overall Study
Pregnancy
1
0
Overall Study
Travel issues
0
1

Baseline Characteristics

Intravenous CTLA4-lg Treatment in Recent Onset Type 1 Diabetes Mellitus

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
CTLA-4 Ig
n=77 Participants
Intravenous infusions of CTLA-4 Ig CTLA-4 Ig: Intravenous infusion of 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
n=35 Participants
Intravenous infusions of placebo Placebo: Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Total
n=112 Participants
Total of all reporting groups
Age, Continuous
13.9 years
STANDARD_DEVIATION 6.9 • n=5 Participants
13.7 years
STANDARD_DEVIATION 5.3 • n=7 Participants
13.9 years
STANDARD_DEVIATION 6.4 • n=5 Participants
Sex: Female, Male
Female
36 Participants
n=5 Participants
10 Participants
n=7 Participants
46 Participants
n=5 Participants
Sex: Female, Male
Male
41 Participants
n=5 Participants
25 Participants
n=7 Participants
66 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 2 years of follow up

The primary outcome is the area under the stimulated C-peptide curve (AUC) based on data collected at time 0 to 2 hours of a 4-hour mixed meal glucose tolerance test (MMTT) conducted at the primary endpoint visit. The timed measurements are done at: 0, 15, 30 60, 90, and 120 minutes.

Outcome measures

Outcome measures
Measure
CTLA-4 Ig
n=73 Participants
Intravenous infusions 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
n=30 Participants
Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Area Under the Stimulated C-peptide Curve Over the First 2 Hours of a 4 Hour Mixed Meal Tolerance Test at the 2 Year Visit
0.375 nmol/L
Interval 0.29 to 0.465
0.266 nmol/L
Interval 0.171 to 0.368

Adverse Events

CTLA-4 Ig

Serious events: 11 serious events
Other events: 60 other events
Deaths: 0 deaths

Placebo

Serious events: 7 serious events
Other events: 26 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
CTLA-4 Ig
n=77 participants at risk
Intravenous infusions of CTLA-4 Ig CTLA-4 Ig: Intravenous infusion of 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
n=35 participants at risk
Intravenous infusions of placebo Placebo: Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Blood and lymphatic system disorders
Hemoglobin
0.00%
0/77
2.9%
1/35 • Number of events 1
Blood and lymphatic system disorders
Leukocytes (total WBC)
0.00%
0/77
2.9%
1/35 • Number of events 1
Blood and lymphatic system disorders
Neutrophils/granulocytes (ANC/AGC)
0.00%
0/77
2.9%
1/35 • Number of events 1
General disorders
Insomnia
1.3%
1/77 • Number of events 1
0.00%
0/35
General disorders
Death not associated with CTCAE term
1.3%
1/77 • Number of events 1
0.00%
0/35
Skin and subcutaneous tissue disorders
Dermatology/Skin - Other
1.3%
1/77 • Number of events 1
2.9%
1/35 • Number of events 1
Endocrine disorders
Endocrine - Other
1.3%
1/77 • Number of events 1
0.00%
0/35
Endocrine disorders
Pancreatic endocrine: glucose intolerance
1.3%
1/77 • Number of events 1
0.00%
0/35
Gastrointestinal disorders
Gastrointestinal - Other
3.9%
3/77 • Number of events 3
8.6%
3/35 • Number of events 3
Gastrointestinal disorders
Vomiting
0.00%
0/77
2.9%
1/35 • Number of events 1
Metabolism and nutrition disorders
Glucose, serum-high (hyperglycemia)
1.3%
1/77 • Number of events 1
0.00%
0/35
Metabolism and nutrition disorders
Glucose, serum-low (hypoglycemia)
3.9%
3/77 • Number of events 5
2.9%
1/35 • Number of events 2
Musculoskeletal and connective tissue disorders
Fracture
2.6%
2/77 • Number of events 2
0.00%
0/35
Nervous system disorders
Mood alteration- Agitation
0.00%
0/77
2.9%
1/35 • Number of events 1
Nervous system disorders
Seizure
1.3%
1/77 • Number of events 1
0.00%
0/35
General disorders
Pain- Head/headache
0.00%
0/77
2.9%
1/35 • Number of events 1
General disorders
Secondary Malignancy - possibly related to cancer treatment
1.3%
1/77 • Number of events 1
0.00%
0/35
Surgical and medical procedures
Intra-operative Injury - Other
1.3%
1/77 • Number of events 1
0.00%
0/35
General disorders
Syndromes - Other
0.00%
0/77
2.9%
1/35 • Number of events 1

Other adverse events

Other adverse events
Measure
CTLA-4 Ig
n=77 participants at risk
Intravenous infusions of CTLA-4 Ig CTLA-4 Ig: Intravenous infusion of 10 mg/kg of CTLA-4 Ig every other week for the first two doses and then every 28 days for a total of 27 doses
Placebo
n=35 participants at risk
Intravenous infusions of placebo Placebo: Intravenous infusions of placebo every other week for the first two doses and then every 28 days for a total of 27 doses
Blood and lymphatic system disorders
Neutrophils/granulocytes (ANC/AGC)
11.7%
9/77 • Number of events 14
14.3%
5/35 • Number of events 12
General disorders
Constitutional Symptoms - Other
6.5%
5/77 • Number of events 6
2.9%
1/35 • Number of events 1
General disorders
Fever (in the absence of neutropenia, where neutropenia is defined as ANC <1.0 x 10e9/L)
10.4%
8/77 • Number of events 9
2.9%
1/35 • Number of events 1
Skin and subcutaneous tissue disorders
Dermatology/Skin - Other
15.6%
12/77 • Number of events 14
2.9%
1/35 • Number of events 2
Endocrine disorders
Endocrine - Other
6.5%
5/77 • Number of events 5
2.9%
1/35 • Number of events 1
Gastrointestinal disorders
Dental: teeth
6.5%
5/77 • Number of events 5
2.9%
1/35 • Number of events 1
Gastrointestinal disorders
Gastrointestinal - Other
6.5%
5/77 • Number of events 5
5.7%
2/35 • Number of events 2
Gastrointestinal disorders
Vomiting
15.6%
12/77 • Number of events 16
11.4%
4/35 • Number of events 4
Infections and infestations
Infection - Other
36.4%
28/77 • Number of events 58
37.1%
13/35 • Number of events 23
Infections and infestations
Infection with unknown ANC- Pharynx
1.3%
1/77 • Number of events 1
8.6%
3/35 • Number of events 3
Musculoskeletal and connective tissue disorders
Fracture
11.7%
9/77 • Number of events 12
14.3%
5/35 • Number of events 5
Musculoskeletal and connective tissue disorders
Musculoskeletal/Soft Tissue - Other
7.8%
6/77 • Number of events 7
8.6%
3/35 • Number of events 3
Nervous system disorders
Neuropathy: sensory
0.00%
0/77
5.7%
2/35 • Number of events 2
General disorders
Other AE
5.2%
4/77 • Number of events 4
2.9%
1/35 • Number of events 1
General disorders
Pain- Head/headache
1.3%
1/77 • Number of events 1
5.7%
2/35 • Number of events 2
General disorders
Pain - Other
2.6%
2/77 • Number of events 3
8.6%
3/35 • Number of events 4
Respiratory, thoracic and mediastinal disorders
Bronchospasm, wheezing
1.3%
1/77 • Number of events 1
5.7%
2/35 • Number of events 4
Respiratory, thoracic and mediastinal disorders
Cough
1.3%
1/77 • Number of events 1
5.7%
2/35 • Number of events 4
Respiratory, thoracic and mediastinal disorders
Pulmonary/Upper Respiratory - Other
10.4%
8/77 • Number of events 14
5.7%
2/35 • Number of events 2
General disorders
Flu-like syndrome
9.1%
7/77 • Number of events 7
11.4%
4/35 • Number of events 4

Additional Information

Carla Greenbaum

Benaroya Research Institute

Results disclosure agreements

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