Trial Outcomes & Findings for Alemtuzumab to Treat Severe Aplastic Anemia (NCT NCT00195624)

NCT ID: NCT00195624

Last Updated: 2020-07-07

Results Overview

Hematological response is defined as no longer satisfying blood count criteria for Severe Aplastic Anemia. Patients were classified as responders if they met two of the following three criteria: ANC greater than 500/ mm'; platelet count greater than 20,000/mm3; and reticulocyte count greater than 40,000/mm3 (60,000/mm3 after January 1993).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

47 participants

Primary outcome timeframe

6 months

Results posted on

2020-07-07

Participant Flow

Participant milestones

Participant milestones
Measure
Refractory
Patients who are refractory to prior courses of horse and rabbit antithymocyte globulin (ATG) based immunosuppresive therapy.
Relapsed
Patients who have responded and relapsed following a prior course of antithymocyte globulin (ATG) based immunosuppresive therapy.
Overall Study
STARTED
5
42
Overall Study
COMPLETED
5
42
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Alemtuzumab to Treat Severe Aplastic Anemia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Refractory
n=5 Participants
Patients who are refractory to prior courses of horse and rabbit antithymocyte globulin (ATG) based immunosuppresive therapy.
Relapsed
n=42 Participants
Patients who have responded and relapsed following a prior course of antithymocyte globulin (ATG) based immunosuppresive therapy.
Total
n=47 Participants
Total of all reporting groups
Age, Categorical
<=18 years
1 Participants
n=5 Participants
6 Participants
n=7 Participants
7 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
3 Participants
n=5 Participants
27 Participants
n=7 Participants
30 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
9 Participants
n=7 Participants
10 Participants
n=5 Participants
Sex: Female, Male
Female
1 Participants
n=5 Participants
24 Participants
n=7 Participants
25 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
18 Participants
n=7 Participants
22 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=5 Participants
6 Participants
n=7 Participants
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants
n=5 Participants
35 Participants
n=7 Participants
38 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
10 Participants
n=7 Participants
10 Participants
n=5 Participants
Race (NIH/OMB)
White
2 Participants
n=5 Participants
23 Participants
n=7 Participants
25 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 months

Hematological response is defined as no longer satisfying blood count criteria for Severe Aplastic Anemia. Patients were classified as responders if they met two of the following three criteria: ANC greater than 500/ mm'; platelet count greater than 20,000/mm3; and reticulocyte count greater than 40,000/mm3 (60,000/mm3 after January 1993).

Outcome measures

Outcome measures
Measure
Refractory
n=5 Participants
Patients who are refractory to prior courses of horse and rabbit antithymocyte globulin (ATG) based immunosuppresive therapy.
Relapsed
n=42 Participants
Patients who have responded and relapsed following a prior course of antithymocyte globulin (ATG) based immunosuppresive therapy.
Number of Participants With Hematological Response at 6 Months
0 Participants
18 Participants

Adverse Events

Refractory

Serious events: 2 serious events
Other events: 4 other events
Deaths: 5 deaths

Relapsed

Serious events: 22 serious events
Other events: 42 other events
Deaths: 13 deaths

Serious adverse events

Serious adverse events
Measure
Refractory
n=5 participants at risk
Patients who are refractory to prior courses of horse and rabbit antithymocyte globulin (ATG) based immunosuppresive therapy.
Relapsed
n=42 participants at risk
Patients who have responded and relapsed following a prior course of antithymocyte globulin (ATG) based immunosuppresive therapy.
Blood and lymphatic system disorders
Anaemia
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Blood and lymphatic system disorders
Febrile neutropenia
20.0%
1/5 • 6 months
35.7%
15/42 • 6 months
Cardiac disorders
Cardiac failure
20.0%
1/5 • 6 months
0.00%
0/42 • 6 months
Cardiac disorders
Presyncope
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Gastritis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Immune system disorders
Allergic transfusion reaction
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Fungal infection
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Pneumonia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Haemorrhagic ovarian cyst
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Nervous system disorders
Central nervous system inflammation
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Nervous system disorders
Cerebral ischaemia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Reproductive system and breast disorders
Vaginal ulceration
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months

Other adverse events

Other adverse events
Measure
Refractory
n=5 participants at risk
Patients who are refractory to prior courses of horse and rabbit antithymocyte globulin (ATG) based immunosuppresive therapy.
Relapsed
n=42 participants at risk
Patients who have responded and relapsed following a prior course of antithymocyte globulin (ATG) based immunosuppresive therapy.
Blood and lymphatic system disorders
Ecchymosis
0.00%
0/5 • 6 months
14.3%
6/42 • 6 months
Blood and lymphatic system disorders
Febrile neutropenia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Blood and lymphatic system disorders
Haemolysis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Blood and lymphatic system disorders
Lymphopenia
0.00%
0/5 • 6 months
33.3%
14/42 • 6 months
Blood and lymphatic system disorders
Neutropenia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Blood and lymphatic system disorders
Petechiae
20.0%
1/5 • 6 months
16.7%
7/42 • 6 months
Blood and lymphatic system disorders
Thrombocytopenia
20.0%
1/5 • 6 months
0.00%
0/42 • 6 months
Blood and lymphatic system disorders
Transfusion reaction
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Cardiac disorders
Arrhythmia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Cardiac disorders
Chest discomfort
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Cardiac disorders
Chest pain
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Cardiac disorders
Dizziness
0.00%
0/5 • 6 months
14.3%
6/42 • 6 months
Cardiac disorders
Dyspnoea
0.00%
0/5 • 6 months
14.3%
6/42 • 6 months
Cardiac disorders
Dyspnoea exertional
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Cardiac disorders
Palpitations
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Cardiac disorders
Tachycardia
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Ear and labyrinth disorders
Hypoacusis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Endocrine disorders
Hyperglycaemia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Endocrine disorders
Hypothyroidism
20.0%
1/5 • 6 months
0.00%
0/42 • 6 months
Eye disorders
Conjunctival haemorrhage
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Conjunctivitis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Dry eye
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Eye irritation
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Eye pain
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Eye disorders
Eye swelling
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Scleral haemorrhage
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Eye disorders
Vision blurred
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Eye disorders
Visual impairment
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Gastrointestinal disorders
Abdominal pain
0.00%
0/5 • 6 months
14.3%
6/42 • 6 months
Gastrointestinal disorders
Abnormal faeces
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Constipation
20.0%
1/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Diarrhoea
20.0%
1/5 • 6 months
7.1%
3/42 • 6 months
Gastrointestinal disorders
Dry mouth
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Gastrointestinal disorders
Dyspepsia
20.0%
1/5 • 6 months
4.8%
2/42 • 6 months
Gastrointestinal disorders
Gastrooesophageal reflux disease
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Gingival bleeding
0.00%
0/5 • 6 months
11.9%
5/42 • 6 months
Gastrointestinal disorders
Mouth ulceration
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Nausea
0.00%
0/5 • 6 months
19.0%
8/42 • 6 months
Gastrointestinal disorders
Oral mucosal blistering
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Oropharyngeal pain
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Gastrointestinal disorders
Rectal haemorrhage
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Gastrointestinal disorders
Stomatitis
20.0%
1/5 • 6 months
4.8%
2/42 • 6 months
Gastrointestinal disorders
Vomiting
0.00%
0/5 • 6 months
9.5%
4/42 • 6 months
General disorders
Asthenia
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
General disorders
Catheter site pain
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Chills
0.00%
0/5 • 6 months
35.7%
15/42 • 6 months
General disorders
Cold sweat
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Decreased appetite
20.0%
1/5 • 6 months
4.8%
2/42 • 6 months
General disorders
Discomfort
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Fatigue
0.00%
0/5 • 6 months
28.6%
12/42 • 6 months
General disorders
Feeling cold
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
General disorders
Flushing
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Hot flush
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Hyperhidrosis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Infusion related reaction
80.0%
4/5 • 6 months
59.5%
25/42 • 6 months
General disorders
Injection site inflammation
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
General disorders
Night sweats
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
General disorders
Pain
0.00%
0/5 • 6 months
16.7%
7/42 • 6 months
General disorders
Pallor
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Peripheral coldness
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
General disorders
Pyrexia
0.00%
0/5 • 6 months
38.1%
16/42 • 6 months
Immune system disorders
Allergic sinusitis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Immune system disorders
Bronchospasm
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Immune system disorders
Urticaria
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Bacteraemia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Herpes simplex
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Herpes zoster
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Pharyngitis streptococcal
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Upper respiratory tract infection
40.0%
2/5 • 6 months
14.3%
6/42 • 6 months
Infections and infestations
Urinary tract infection
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Infections and infestations
Viral upper respiratory tract infection
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Infections and infestations
Vulvovaginal candidiasis
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Injury, poisoning and procedural complications
Contusion
0.00%
0/5 • 6 months
26.2%
11/42 • 6 months
Injury, poisoning and procedural complications
Iron overload
0.00%
0/5 • 6 months
11.9%
5/42 • 6 months
Investigations
Alanine aminotransferase increased
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Investigations
Aspartate aminotransferase increased
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Investigations
Blood bilirubin increased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Blood calcium decreased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Blood lactate dehydrogenase increased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Blood magnesium decreased
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Investigations
Blood pressure decreased
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Investigations
Blood urine present
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Cardiac murmur
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Heart rate increased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Liver function test increased
0.00%
0/5 • 6 months
14.3%
6/42 • 6 months
Investigations
Lymphocyte count decreased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Oxygen saturation decreased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Respiratory rate increased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Transaminases
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Investigations
Transaminases increased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Investigations
Weight decreased
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Musculoskeletal and connective tissue disorders
Muscle atrophy
20.0%
1/5 • 6 months
0.00%
0/42 • 6 months
Musculoskeletal and connective tissue disorders
Muscle spasms
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Myalgia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Musculoskeletal and connective tissue disorders
Pain in jaw
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Dermal cyst
20.0%
1/5 • 6 months
0.00%
0/42 • 6 months
Nervous system disorders
Headache
0.00%
0/5 • 6 months
23.8%
10/42 • 6 months
Nervous system disorders
Insomnia
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Nervous system disorders
Somnolence
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Psychiatric disorders
Anxiety
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Psychiatric disorders
Depressed mood
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Psychiatric disorders
Depression
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Psychiatric disorders
Mood altered
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Psychiatric disorders
Sleep disorder
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Renal and urinary disorders
Haematuria
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Reproductive system and breast disorders
Menstrual disorder
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Reproductive system and breast disorders
Vaginal haemorrhage
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/5 • 6 months
23.8%
10/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Increased viscosity of upper respiratory secretion
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Respiratory tract congestion
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Upper-airway cough syndrome
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Respiratory, thoracic and mediastinal disorders
Wheezing
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Alopecia
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Dry skin
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Skin and subcutaneous tissue disorders
Eczema
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Pityriasis rosea
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Pruritus
0.00%
0/5 • 6 months
7.1%
3/42 • 6 months
Skin and subcutaneous tissue disorders
Pruritus generalised
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash
0.00%
0/5 • 6 months
23.8%
10/42 • 6 months
Skin and subcutaneous tissue disorders
Rash generalised
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash macular
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash maculo-papular
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash papular
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Rash pruritic
0.00%
0/5 • 6 months
19.0%
8/42 • 6 months
Skin and subcutaneous tissue disorders
Skin Infiltration
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Skin and subcutaneous tissue disorders
Skin irritation
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Vascular disorders
Aortic dilatation
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Vascular disorders
Blood pressure inadequately controlled
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months
Vascular disorders
Haemorrhage
0.00%
0/5 • 6 months
4.8%
2/42 • 6 months
Vascular disorders
Hypertension
0.00%
0/5 • 6 months
2.4%
1/42 • 6 months

Additional Information

Young, Neal

National Heart Lung and Blood Institute

Phone: +1 301 496 5093

Results disclosure agreements

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