Trial Outcomes & Findings for Rituximab in New Onset Type 1 Diabetes (NCT NCT00279305)

NCT ID: NCT00279305

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. The calculation for the concentration of c-peptide is a weighted average of the 6 timed measurements of c-peptide in nano-moles/Liter. We try to distinguish this calculation from the AUC by referring to it as the "AUC mean" and may be expressed algebraically as the AUC/(120 min.); thus, the units are the same as the y-axis.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

87 participants

Primary outcome timeframe

When all participants complete the 1 year visit

Results posted on

2020-05-06

Participant Flow

Participants with newly diagnosed type 1 diabetes recruited from 12 TrialNet Clinical Centers between

126 patients were assessed; 39 were excluded; 87 underwent randomization (57 were assigned to receive rituximab and 30 were assigned to receive placebo)

Participant milestones

Participant milestones
Measure
Rituximab Treatment
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Overall Study
STARTED
57
30
Overall Study
COMPLETED
49
29
Overall Study
NOT COMPLETED
8
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Rituximab Treatment
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Overall Study
Pregnancy
1
0
Overall Study
Withdrawal by Subject
2
0
Overall Study
Dificulting establishing IV
1
0
Overall Study
FDA Safety Alert
4
1

Baseline Characteristics

Rituximab in New Onset Type 1 Diabetes

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Rituximab Treatment
n=57 Participants
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
n=30 Participants
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Total
n=87 Participants
Total of all reporting groups
Age, Continuous
19.0 years
STANDARD_DEVIATION 8.6 • n=5 Participants
17.4 years
STANDARD_DEVIATION 8.0 • n=7 Participants
18.5 years
STANDARD_DEVIATION 8.3 • n=5 Participants
Sex: Female, Male
Female
21 Participants
n=5 Participants
12 Participants
n=7 Participants
33 Participants
n=5 Participants
Sex: Female, Male
Male
36 Participants
n=5 Participants
18 Participants
n=7 Participants
54 Participants
n=5 Participants

PRIMARY outcome

Timeframe: When all participants complete the 1 year visit

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. The calculation for the concentration of c-peptide is a weighted average of the 6 timed measurements of c-peptide in nano-moles/Liter. We try to distinguish this calculation from the AUC by referring to it as the "AUC mean" and may be expressed algebraically as the AUC/(120 min.); thus, the units are the same as the y-axis.

Outcome measures

Outcome measures
Measure
Rituximab Treatment
n=49 Participants
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
n=29 Participants
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Area Under the Stimulated C-peptide Curve Over the First 2 Hours of a 4-hour Mixed Meal Tolerance Test (MMTT) Administered at 1 Year
0.58 pmol per mL
Interval 0.476 to 0.691
0.429 pmol per mL
Interval 0.289 to 0.585

Adverse Events

Rituximab Treatment

Serious events: 11 serious events
Other events: 56 other events
Deaths: 0 deaths

Placebo

Serious events: 9 serious events
Other events: 29 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Rituximab Treatment
n=57 participants at risk
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
n=30 participants at risk
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Immune system disorders
Allergic reaction/hypersensitivity (including drug fever)
1.8%
1/57 • Number of events 1
0.00%
0/30
Blood and lymphatic system disorders
Neutrophils/granulocytes (ANC/AGC)
7.0%
4/57 • Number of events 4
3.3%
1/30 • Number of events 2
General disorders
Sudden Death
0.00%
0/57
3.3%
1/30 • Number of events 1
Skin and subcutaneous tissue disorders
Dermatology/Skin Other
1.8%
1/57 • Number of events 1
0.00%
0/30
Endocrine disorders
Endocrine- other
3.5%
2/57 • Number of events 2
6.7%
2/30 • Number of events 3
Endocrine disorders
Pancreatic endocrine: glucose intolerance
0.00%
0/57
3.3%
1/30 • Number of events 1
Gastrointestinal disorders
Gastrointestinal Other
1.8%
1/57 • Number of events 1
0.00%
0/30
Infections and infestations
Infection Other
0.00%
0/57
6.7%
2/30 • Number of events 2
Infections and infestations
Infection with unknown ANC- pneumonia
0.00%
0/57
3.3%
1/30 • Number of events 1
Infections and infestations
Infection with unknown ANC- Sinus
1.8%
1/57 • Number of events 1
0.00%
0/30
Metabolism and nutrition disorders
Acidosis (metabolic or respiratory)
1.8%
1/57 • Number of events 1
3.3%
1/30 • Number of events 3
Metabolism and nutrition disorders
Glucose, serum-high (hyperglycemia)
0.00%
0/57
3.3%
1/30 • Number of events 1
Metabolism and nutrition disorders
Glucose, serum-low (hypoglycemia)
1.8%
1/57 • Number of events 1
0.00%
0/30
Musculoskeletal and connective tissue disorders
Fracture
1.8%
1/57 • Number of events 1
0.00%
0/30
Respiratory, thoracic and mediastinal disorders
Pulmonary/Upper Respiratory - Other
0.00%
0/57
3.3%
1/30 • Number of events 1
Renal and urinary disorders
Renal failure
0.00%
0/57
3.3%
1/30 • Number of events 1
Surgical and medical procedures
Intra-operative Injury - Other
0.00%
0/57
3.3%
1/30 • Number of events 1

Other adverse events

Other adverse events
Measure
Rituximab Treatment
n=57 participants at risk
Four intravenous infusions (375 mg per square meter of body-surface area) were given on days 1, 8, 15, and 22 of the study
Placebo
n=30 participants at risk
Placebo infusions were given to participants in control group on days 1, 8, 15, and 22.
Immune system disorders
Allergic rhinitis
17.5%
10/57 • Number of events 11
10.0%
3/30 • Number of events 5
Blood and lymphatic system disorders
Blood/Bone Marrow - Other
0.00%
0/57
10.0%
3/30 • Number of events 9
Blood and lymphatic system disorders
Leukocytes (total WBC)
12.3%
7/57 • Number of events 12
6.7%
2/30 • Number of events 3
Blood and lymphatic system disorders
Lymphopenia
8.8%
5/57 • Number of events 7
6.7%
2/30 • Number of events 2
Blood and lymphatic system disorders
Neutrophils/granulocytes (ANC/AGC)
19.3%
11/57 • Number of events 18
30.0%
9/30 • Number of events 14
Cardiac disorders
Supraventricular and nodal arrhythmia
21.1%
12/57 • Number of events 13
0.00%
0/30
Cardiac disorders
Vasovagal episode
5.3%
3/57 • Number of events 5
6.7%
2/30 • Number of events 2
Cardiac disorders
Hypertension
10.5%
6/57 • Number of events 6
0.00%
0/30
Cardiac disorders
Hypotension
31.6%
18/57 • Number of events 25
16.7%
5/30 • Number of events 9
General disorders
Constitutional Symptoms - Other
5.3%
3/57 • Number of events 3
6.7%
2/30 • Number of events 3
General disorders
Fatigue (asthenia, lethargy, malaise)
10.5%
6/57 • Number of events 8
6.7%
2/30 • Number of events 2
General disorders
Fever
29.8%
17/57 • Number of events 19
16.7%
5/30 • Number of events 7
General disorders
Rigors/chills
5.3%
3/57 • Number of events 3
0.00%
0/30
Skin and subcutaneous tissue disorders
Dermatology/Skin - Other
10.5%
6/57 • Number of events 9
20.0%
6/30 • Number of events 7
Skin and subcutaneous tissue disorders
Pruritus/itching
36.8%
21/57 • Number of events 22
0.00%
0/30
Skin and subcutaneous tissue disorders
Rash/desquamation
42.1%
24/57 • Number of events 26
10.0%
3/30 • Number of events 4
Endocrine disorders
Endocrine - Other
0.00%
0/57
16.7%
5/30 • Number of events 5
Gastrointestinal disorders
Dental: teeth
8.8%
5/57 • Number of events 5
0.00%
0/30
Gastrointestinal disorders
Diarrhea
21.1%
12/57 • Number of events 15
10.0%
3/30 • Number of events 5
Gastrointestinal disorders
Gastrointestinal - Other
7.0%
4/57 • Number of events 4
16.7%
5/30 • Number of events 6
Gastrointestinal disorders
Nausea
43.9%
25/57 • Number of events 26
6.7%
2/30 • Number of events 2
Gastrointestinal disorders
Vomiting
28.1%
16/57 • Number of events 19
10.0%
3/30 • Number of events 3
Infections and infestations
Infection - Other
24.6%
14/57 • Number of events 15
6.7%
2/30 • Number of events 2
Infections and infestations
Pelvis Infection with normal ANC or Grade 1 or 2 neutrophils
5.3%
3/57 • Number of events 3
6.7%
2/30 • Number of events 2
Infections and infestations
Skin Infection with normal ANC or Grade 1 or 2 neutrophils
7.0%
4/57 • Number of events 4
6.7%
2/30 • Number of events 2
Infections and infestations
Pharynx Infection with unknown ANC
14.0%
8/57 • Number of events 14
13.3%
4/30 • Number of events 8
Infections and infestations
Sinus Infection with unknown ANC
5.3%
3/57 • Number of events 3
6.7%
2/30 • Number of events 6
Infections and infestations
Upper Airway Infection with unknown ANC
24.6%
14/57 • Number of events 25
40.0%
12/30 • Number of events 22
Metabolism and nutrition disorders
Glucose, serum-low (hypoglycemia)
8.8%
5/57 • Number of events 5
13.3%
4/30 • Number of events 4
Musculoskeletal and connective tissue disorders
Fracture
12.3%
7/57 • Number of events 9
13.3%
4/30 • Number of events 4
Musculoskeletal and connective tissue disorders
Musculoskeletal/Soft Tissue - Other
21.1%
12/57 • Number of events 15
23.3%
7/30 • Number of events 11
Nervous system disorders
Dizziness
5.3%
3/57 • Number of events 3
0.00%
0/30
Nervous system disorders
Neurology - Other
5.3%
3/57 • Number of events 4
0.00%
0/30
General disorders
Sinus Pain
22.8%
13/57 • Number of events 22
23.3%
7/30 • Number of events 13
General disorders
Other AE
8.8%
5/57 • Number of events 7
13.3%
4/30 • Number of events 6
Respiratory, thoracic and mediastinal disorders
Bronchospasm, wheezing
0.00%
0/57
6.7%
2/30 • Number of events 4
Respiratory, thoracic and mediastinal disorders
Cough
14.0%
8/57 • Number of events 10
13.3%
4/30 • Number of events 4
Respiratory, thoracic and mediastinal disorders
Dyspnea (shortness of breath)
7.0%
4/57 • Number of events 5
0.00%
0/30
Respiratory, thoracic and mediastinal disorders
Edema, larynx
10.5%
6/57 • Number of events 7
0.00%
0/30
Respiratory, thoracic and mediastinal disorders
Pulmonary/Upper Respiratory - Other
5.3%
3/57 • Number of events 4
6.7%
2/30 • Number of events 2
Reproductive system and breast disorders
Sexual/Reproductive Function - Other
5.3%
3/57 • Number of events 4
0.00%
0/30
General disorders
Flu-like syndrome
7.0%
4/57 • Number of events 5
6.7%
2/30 • Number of events 2
Vascular disorders
Vascular - Other
5.3%
3/57 • Number of events 5
0.00%
0/30

Additional Information

Carla Greenbaum, MD

Type 1 Diabetes TrialNet

Results disclosure agreements

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