Trial Outcomes & Findings for Extended Dosing With Eltrombopag for Severe Aplastic Anemia (NCT NCT01891994)

NCT ID: NCT01891994

Last Updated: 2023-04-25

Results Overview

Defined as unilineage or multilineage recovery by 1 or more of the following: 1) platelet response (increase to 20 × 103/μL above baseline or stable platelet counts with transfusion independence for a minimum of 8 weeks in those who were transfusion dependent on entry into the protocol); (2) erythroid response (when pretreatment hemoglobin was \<9 g/dL, defined as an increase in hemoglobin by 1.5 g/dL or, in transfused patients, a reduction in the units of packed red blood cell transfusions by an absolute number of at least 4 transfusions for 8 consecutive weeks, compared with the pretreatment transfusion number in the previous 8 weeks); and (3) neutrophil response (when pretreatment absolute neutrophil count \[ANC\] of \<0.5 × 103/μL as at least a 100% increase in ANC, or an ANC increase \>0.5 × 103/μL, and the toxicity profile as measured using Common Terminology Criteria for Adverse Events).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

40 participants

Primary outcome timeframe

24 weeks

Results posted on

2023-04-25

Participant Flow

Participant milestones

Participant milestones
Measure
Eltrombopag
Eltrombopag was administered for 6 months at a dose of 150mg daily in patients \> 12 years of age, 75mg daily for patients 6 to 11 years of age, and 2.5 mg/kg/day for children 2-5 years of age. Dosing was reduced to 50% for patients of East Asian ethnicity.
Overall Study
STARTED
40
Overall Study
COMPLETED
40
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Extended Dosing With Eltrombopag for Severe Aplastic Anemia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Eltrombopag
n=40 Participants
Eltrombopag was administered for 6 months at a dose of 150mg daily in patients \> 12 years of age, 75mg daily for patients 6 to 11 years of age, and 2.5 mg/kg/day for children 2-5 years of age.
Age, Categorical
<=18 years
9 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
25 Participants
n=5 Participants
Age, Categorical
>=65 years
6 Participants
n=5 Participants
Sex: Female, Male
Female
19 Participants
n=5 Participants
Sex: Female, Male
Male
21 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
33 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
4 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=5 Participants
Race (NIH/OMB)
White
25 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
4 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 24 weeks

Population: All subjects who received Eltrombopag were analyzed.

Defined as unilineage or multilineage recovery by 1 or more of the following: 1) platelet response (increase to 20 × 103/μL above baseline or stable platelet counts with transfusion independence for a minimum of 8 weeks in those who were transfusion dependent on entry into the protocol); (2) erythroid response (when pretreatment hemoglobin was \<9 g/dL, defined as an increase in hemoglobin by 1.5 g/dL or, in transfused patients, a reduction in the units of packed red blood cell transfusions by an absolute number of at least 4 transfusions for 8 consecutive weeks, compared with the pretreatment transfusion number in the previous 8 weeks); and (3) neutrophil response (when pretreatment absolute neutrophil count \[ANC\] of \<0.5 × 103/μL as at least a 100% increase in ANC, or an ANC increase \>0.5 × 103/μL, and the toxicity profile as measured using Common Terminology Criteria for Adverse Events).

Outcome measures

Outcome measures
Measure
Eltrombopag
n=40 Participants
Eltrombopag was administered for 6 months at a dose of 150mg daily in patients \> 12 years of age, 75mg daily for patients 6 to 11 years of age, and 2.5 mg/kg/day for children 2-5 years of age. Dosing was reduced to 50% for patients of East Asian ethnicity.
Number of Participants With Drug Response as Defined by Clinically-signficant Hematologic Improvements
20 Participants

Adverse Events

Eltrombopag

Serious events: 13 serious events
Other events: 39 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Eltrombopag
n=40 participants at risk
Eltrombopag was administered for 6 months at a dose of 150mg daily in patients \> 12 years of age, 75mg daily for patients 6 to 11 years of age, and 2.5 mg/kg/day for children 2-5 years of age.
Blood and lymphatic system disorders
Anaemia
2.5%
1/40 • 6 months
Blood and lymphatic system disorders
Febrile neutropenia
10.0%
4/40 • 6 months
Ear and labyrinth disorders
Otitis media
2.5%
1/40 • 6 months
Gastrointestinal disorders
Colitis
2.5%
1/40 • 6 months
Gastrointestinal disorders
Diarrhoea
2.5%
1/40 • 6 months
Gastrointestinal disorders
Nausea
2.5%
1/40 • 6 months
Gastrointestinal disorders
Pancreatitis
2.5%
1/40 • 6 months
Gastrointestinal disorders
Vomiting
2.5%
1/40 • 6 months
General disorders
Death
2.5%
1/40 • 6 months
General disorders
Infusion related reaction
2.5%
1/40 • 6 months
General disorders
Pyrexia
2.5%
1/40 • 6 months
Hepatobiliary disorders
Bile duct stenosis
2.5%
1/40 • 6 months
Immune system disorders
Hypersensitivity
2.5%
1/40 • 6 months
Immune system disorders
Urticaria
2.5%
1/40 • 6 months
Infections and infestations
Cellulitis
2.5%
1/40 • 6 months
Infections and infestations
Clostridium difficile Infection
2.5%
1/40 • 6 months
Infections and infestations
Influenza
2.5%
1/40 • 6 months
Infections and infestations
Sepsis
5.0%
2/40 • 6 months
Infections and infestations
Staphylococcal infection
2.5%
1/40 • 6 months
Injury, poisoning and procedural complications
Craniocerebral Injury
2.5%
1/40 • 6 months
Nervous system disorders
Haemorrhage intracranial
2.5%
1/40 • 6 months
Nervous system disorders
Headache
2.5%
1/40 • 6 months
Renal and urinary disorders
Nephrolithiasis
2.5%
1/40 • 6 months
Reproductive system and breast disorders
Ovarian haemorrhage
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
2.5%
1/40 • 6 months
Surgical and medical procedures
Catheter placement
2.5%
1/40 • 6 months
Surgical and medical procedures
Hip arthroplasty
2.5%
1/40 • 6 months

Other adverse events

Other adverse events
Measure
Eltrombopag
n=40 participants at risk
Eltrombopag was administered for 6 months at a dose of 150mg daily in patients \> 12 years of age, 75mg daily for patients 6 to 11 years of age, and 2.5 mg/kg/day for children 2-5 years of age.
Blood and lymphatic system disorders
Acute Myeloid Leukaemia
2.5%
1/40 • 6 months
Blood and lymphatic system disorders
Anaemia
40.0%
16/40 • 6 months
Blood and lymphatic system disorders
Conjunctival pallor
2.5%
1/40 • 6 months
Blood and lymphatic system disorders
Febrile neutropenia
7.5%
3/40 • 6 months
Blood and lymphatic system disorders
Ocular icterus
25.0%
10/40 • 6 months
Blood and lymphatic system disorders
Petechiae
22.5%
9/40 • 6 months
Blood and lymphatic system disorders
Purpura
2.5%
1/40 • 6 months
Cardiac disorders
Atrial fibrillation
5.0%
2/40 • 6 months
Cardiac disorders
Dizziness
20.0%
8/40 • 6 months
Cardiac disorders
Dyspnoea
20.0%
8/40 • 6 months
Cardiac disorders
Localised oedema
2.5%
1/40 • 6 months
Cardiac disorders
Oedema peripheral
22.5%
9/40 • 6 months
Cardiac disorders
Palpitations
2.5%
1/40 • 6 months
Cardiac disorders
Pericardial effusion
2.5%
1/40 • 6 months
Cardiac disorders
Sinus tachycardia
7.5%
3/40 • 6 months
Cardiac disorders
Syncope
2.5%
1/40 • 6 months
Ear and labyrinth disorders
Ear Infection
2.5%
1/40 • 6 months
Ear and labyrinth disorders
Ear pain
7.5%
3/40 • 6 months
Ear and labyrinth disorders
External ear inflammation
2.5%
1/40 • 6 months
Ear and labyrinth disorders
Otitis externa
5.0%
2/40 • 6 months
Ear and labyrinth disorders
Otitis media
5.0%
2/40 • 6 months
Eye disorders
Conjunctivitis
2.5%
1/40 • 6 months
Eye disorders
Eye disorder
2.5%
1/40 • 6 months
Eye disorders
Eye irritation
2.5%
1/40 • 6 months
Eye disorders
Macular cyst
2.5%
1/40 • 6 months
Gastrointestinal disorders
Abdominal distension
5.0%
2/40 • 6 months
Gastrointestinal disorders
Abdominal pain
20.0%
8/40 • 6 months
Gastrointestinal disorders
Anogenital warts
2.5%
1/40 • 6 months
Gastrointestinal disorders
Aphthous ulcer
2.5%
1/40 • 6 months
Gastrointestinal disorders
Constipation
10.0%
4/40 • 6 months
Gastrointestinal disorders
Diarrhoea
22.5%
9/40 • 6 months
Gastrointestinal disorders
Dysgeusia
2.5%
1/40 • 6 months
Gastrointestinal disorders
Dyspepsia
2.5%
1/40 • 6 months
Gastrointestinal disorders
Dysphagia
2.5%
1/40 • 6 months
Gastrointestinal disorders
Gastritis
2.5%
1/40 • 6 months
Gastrointestinal disorders
Gastrointestinal disorder
10.0%
4/40 • 6 months
Gastrointestinal disorders
Gastrooesophageal reflux disease
5.0%
2/40 • 6 months
Gastrointestinal disorders
Haemorrhoids
2.5%
1/40 • 6 months
Gastrointestinal disorders
Impaired gastric emptying
2.5%
1/40 • 6 months
Gastrointestinal disorders
Large intestine polyp
2.5%
1/40 • 6 months
Gastrointestinal disorders
Lip infection
2.5%
1/40 • 6 months
Gastrointestinal disorders
Lower gastrointestinal haemorrhage
2.5%
1/40 • 6 months
Gastrointestinal disorders
Mouth haemorrhage
10.0%
4/40 • 6 months
Gastrointestinal disorders
Nausea
20.0%
8/40 • 6 months
Gastrointestinal disorders
Oral candidiasis
2.5%
1/40 • 6 months
Gastrointestinal disorders
Oral pain
5.0%
2/40 • 6 months
Gastrointestinal disorders
Oropharyngeal pain
7.5%
3/40 • 6 months
Gastrointestinal disorders
Pelvic pain
2.5%
1/40 • 6 months
Gastrointestinal disorders
Periodontal disease
5.0%
2/40 • 6 months
Gastrointestinal disorders
Rectal haemorrhage
2.5%
1/40 • 6 months
Gastrointestinal disorders
Stomatitis
5.0%
2/40 • 6 months
Gastrointestinal disorders
Tooth infection
5.0%
2/40 • 6 months
Gastrointestinal disorders
Upper gastrointestinal haemorrhage
2.5%
1/40 • 6 months
Gastrointestinal disorders
Vomiting
10.0%
4/40 • 6 months
General disorders
Chills
12.5%
5/40 • 6 months
General disorders
Decreased appetite
12.5%
5/40 • 6 months
General disorders
Fatigue
7.5%
3/40 • 6 months
General disorders
Flushing
2.5%
1/40 • 6 months
General disorders
Hot flush
7.5%
3/40 • 6 months
General disorders
Influenza like illness
7.5%
3/40 • 6 months
General disorders
Infusion related reaction
7.5%
3/40 • 6 months
General disorders
Injection site reaction
2.5%
1/40 • 6 months
General disorders
Malaise
10.0%
4/40 • 6 months
General disorders
Mucosal infection
2.5%
1/40 • 6 months
General disorders
Non-cardiac chest pain
10.0%
4/40 • 6 months
General disorders
Pain
2.5%
1/40 • 6 months
General disorders
Pyrexia
10.0%
4/40 • 6 months
General disorders
Systemic inflammatory response syndrome
2.5%
1/40 • 6 months
Hepatobiliary disorders
Cholelithiasis
5.0%
2/40 • 6 months
Hepatobiliary disorders
Hepatic cyst
2.5%
1/40 • 6 months
Immune system disorders
Hypersensitivity
10.0%
4/40 • 6 months
Immune system disorders
Psoriasis
2.5%
1/40 • 6 months
Immune system disorders
Rhinitis allergic
5.0%
2/40 • 6 months
Infections and infestations
Cellulitis
2.5%
1/40 • 6 months
Infections and infestations
Folliculitis
2.5%
1/40 • 6 months
Infections and infestations
Furuncle
2.5%
1/40 • 6 months
Infections and infestations
Influenza
5.0%
2/40 • 6 months
Infections and infestations
Lung infection
2.5%
1/40 • 6 months
Infections and infestations
Nail infection
2.5%
1/40 • 6 months
Infections and infestations
Papilloma viral infection
2.5%
1/40 • 6 months
Infections and infestations
Pharyngitis streptococcal
2.5%
1/40 • 6 months
Infections and infestations
Rhinitis
5.0%
2/40 • 6 months
Infections and infestations
Sepsis
2.5%
1/40 • 6 months
Infections and infestations
Sinusitis
5.0%
2/40 • 6 months
Infections and infestations
Skin infection
15.0%
6/40 • 6 months
Infections and infestations
Soft tissue infection
2.5%
1/40 • 6 months
Infections and infestations
Trichomoniasis
2.5%
1/40 • 6 months
Infections and infestations
Upper respiratory tract infection
15.0%
6/40 • 6 months
Infections and infestations
Urinary tract infection
5.0%
2/40 • 6 months
Infections and infestations
Vaginal infection
2.5%
1/40 • 6 months
Infections and infestations
Viral infection
12.5%
5/40 • 6 months
Injury, poisoning and procedural complications
Blister
2.5%
1/40 • 6 months
Injury, poisoning and procedural complications
Contusion
20.0%
8/40 • 6 months
Injury, poisoning and procedural complications
Fracture
5.0%
2/40 • 6 months
Injury, poisoning and procedural complications
Iron overload
2.5%
1/40 • 6 months
Injury, poisoning and procedural complications
Laceration
2.5%
1/40 • 6 months
Injury, poisoning and procedural complications
Skin abrasion
5.0%
2/40 • 6 months
Injury, poisoning and procedural complications
Wound
2.5%
1/40 • 6 months
Investigations
Alanine aminotransferase increased
7.5%
3/40 • 6 months
Investigations
Amylase increased
2.5%
1/40 • 6 months
Investigations
Aspartate aminotransferase increased
2.5%
1/40 • 6 months
Investigations
Blood alkaline phosphatase increased
2.5%
1/40 • 6 months
Investigations
Blood bilirubin increased
5.0%
2/40 • 6 months
Investigations
Blood cholesterol increased
2.5%
1/40 • 6 months
Investigations
Blood creatine phosphokinase increased
2.5%
1/40 • 6 months
Investigations
Computerised tomogram
2.5%
1/40 • 6 months
Investigations
Ejection fraction decreased
2.5%
1/40 • 6 months
Investigations
Lipase increased
2.5%
1/40 • 6 months
Investigations
Lymphocyte count decreased
20.0%
8/40 • 6 months
Investigations
Neutrophil count decreased
30.0%
12/40 • 6 months
Investigations
Platelet count decreased
12.5%
5/40 • 6 months
Investigations
Weight decreased
12.5%
5/40 • 6 months
Investigations
Weight increased
15.0%
6/40 • 6 months
Investigations
White blood cell count decreased
22.5%
9/40 • 6 months
Metabolism and nutrition disorders
Dehydration
2.5%
1/40 • 6 months
Metabolism and nutrition disorders
Hypermagnesaemia
2.5%
1/40 • 6 months
Metabolism and nutrition disorders
Hyperuricaemia
2.5%
1/40 • 6 months
Metabolism and nutrition disorders
Hypokalaemia
2.5%
1/40 • 6 months
Metabolism and nutrition disorders
Hyponatraemia
5.0%
2/40 • 6 months
Metabolism and nutrition disorders
Hypophosphataemia
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Arthralgia
7.5%
3/40 • 6 months
Musculoskeletal and connective tissue disorders
Arthritis
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Axillary mass
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Back pain
17.5%
7/40 • 6 months
Musculoskeletal and connective tissue disorders
Bone pain
10.0%
4/40 • 6 months
Musculoskeletal and connective tissue disorders
Intervertebral disc degeneration
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Lipoma
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Muscular weakness
5.0%
2/40 • 6 months
Musculoskeletal and connective tissue disorders
Myalgia
17.5%
7/40 • 6 months
Musculoskeletal and connective tissue disorders
Nonallopathic lesions of head region, not elsewhere classified
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Osteochondrosis
2.5%
1/40 • 6 months
Musculoskeletal and connective tissue disorders
Osteonecrosis
5.0%
2/40 • 6 months
Musculoskeletal and connective tissue disorders
Pain in extremity
12.5%
5/40 • 6 months
Musculoskeletal and connective tissue disorders
Pain in jaw
2.5%
1/40 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasm
2.5%
1/40 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Ovarian Cyst
2.5%
1/40 • 6 months
Nervous system disorders
Headache
27.5%
11/40 • 6 months
Nervous system disorders
Insomnia
2.5%
1/40 • 6 months
Nervous system disorders
Peripheral sensory neuropathy
2.5%
1/40 • 6 months
Nervous system disorders
Tremor
2.5%
1/40 • 6 months
Nervous system disorders
Urinary incontinence
2.5%
1/40 • 6 months
Psychiatric disorders
Anxiety
2.5%
1/40 • 6 months
Psychiatric disorders
Depression
2.5%
1/40 • 6 months
Psychiatric disorders
Hallucination
2.5%
1/40 • 6 months
Renal and urinary disorders
Acute kidney injury
2.5%
1/40 • 6 months
Renal and urinary disorders
Chromaturia
2.5%
1/40 • 6 months
Renal and urinary disorders
Haematuria
5.0%
2/40 • 6 months
Renal and urinary disorders
Pollakiuria
7.5%
3/40 • 6 months
Renal and urinary disorders
Proteinuria
7.5%
3/40 • 6 months
Reproductive system and breast disorders
Vaginal haemorrhage
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Atelectasis
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Cough
15.0%
6/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
22.5%
9/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
5.0%
2/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Pleural effusion
5.0%
2/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Productive cough
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Pulmonary hypertension
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Upper-airway cough syndrome
2.5%
1/40 • 6 months
Respiratory, thoracic and mediastinal disorders
Wheezing
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Alopecia
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Dermatitis
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Dry skin
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Erythema
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Hair colour changes
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Pain of skin
5.0%
2/40 • 6 months
Skin and subcutaneous tissue disorders
Papulopustular rash
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Photosensitivity
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Pruritus
10.0%
4/40 • 6 months
Skin and subcutaneous tissue disorders
Rash erythematous
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Rash maculo-papular
15.0%
6/40 • 6 months
Skin and subcutaneous tissue disorders
Seborrhoeic dermatitis
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Skin Discolouration
5.0%
2/40 • 6 months
Skin and subcutaneous tissue disorders
Skin disorder
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Skin hyperpigmentation
2.5%
1/40 • 6 months
Skin and subcutaneous tissue disorders
Skin lesion
5.0%
2/40 • 6 months
Vascular disorders
Arteriosclerosis
2.5%
1/40 • 6 months
Vascular disorders
Haematoma
2.5%
1/40 • 6 months
Vascular disorders
Hypertension
2.5%
1/40 • 6 months
Vascular disorders
Hypotension
2.5%
1/40 • 6 months

Additional Information

Dunbar, Cynthia

National Heart Lung and Blood Institute

Phone: +1 301 827 1164

Results disclosure agreements

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