Trial Outcomes & Findings for Allopurinol Outcome Study (NCT NCT01391325)

NCT ID: NCT01391325

Last Updated: 2014-06-17

Results Overview

Proportion of subjects who experienced at least one Treatment Emergent Adverse Event (TEAE) during the study.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

1735 participants

Primary outcome timeframe

Every month for 6 months.

Results posted on

2014-06-17

Participant Flow

1,735 subjects enrolled in the study; however, only 1,732 were treated. Therefore, 1,732 subjects started the treatment period.

Participant milestones

Participant milestones
Measure
Allopurinol
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Overall Study
STARTED
1732
Overall Study
COMPLETED
1238
Overall Study
NOT COMPLETED
494

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Allopurinol Outcome Study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Allopurinol
n=1732 Participants
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Age, Continuous
51.4 years
STANDARD_DEVIATION 11.93 • n=5 Participants
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
1483 Participants
n=5 Participants
Age, Categorical
>=65 years
249 Participants
n=5 Participants
Sex: Female, Male
Female
118 Participants
n=5 Participants
Sex: Female, Male
Male
1614 Participants
n=5 Participants
Region of Enrollment
United States
1203 participants
n=5 Participants
Region of Enrollment
Canada
74 participants
n=5 Participants
Region of Enrollment
Belgium
11 participants
n=5 Participants
Region of Enrollment
Australia
104 participants
n=5 Participants
Region of Enrollment
South Africa
242 participants
n=5 Participants
Region of Enrollment
Germany
14 participants
n=5 Participants
Region of Enrollment
New Zealand
84 participants
n=5 Participants

PRIMARY outcome

Timeframe: Every month for 6 months.

Population: All subjects who received at least one dose of allopurinol

Proportion of subjects who experienced at least one Treatment Emergent Adverse Event (TEAE) during the study.

Outcome measures

Outcome measures
Measure
Allopurinol
n=1732 Participants
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Safety of Allopurinol
55.1 percentage of subjects

SECONDARY outcome

Timeframe: Month 6

Population: All subjects who received at least one dose of allopurinol

Proportion of subjects with serum urate (sUA) less than 6.0 mg/dL at Month 6 using Last Observation Carried Forward (LOCF) for subjects with missing values at Month 6.

Outcome measures

Outcome measures
Measure
Allopurinol
n=1732 Participants
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Proportion of Subjects With Serum Urate (sUA) Less Than 6.0 mg/dL
43.4 percentage of subjects
Interval 41.0 to 46.0

SECONDARY outcome

Timeframe: Every month for 6 months.

Population: Subjects who received at least one dose of allopurinol

Proportion of subjects who experienced at least one gout flare requiring treatment during the study.

Outcome measures

Outcome measures
Measure
Allopurinol
n=1732 Participants
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Incidence of Gout Flares
33.4 percentage of subjects
Interval 31.0 to 36.0

SECONDARY outcome

Timeframe: Month 6

Population: Subjects who recieved at least one dose of allopurinol

The SF-36 is a short-form health survey with 36 questions that yields an 8-scale profile of functional health and well-being scores as well as psychometrically-based physical (PCS) and mental health (MCS) summary. Each scale is directly transformed into a 0-100 scale. The lower the score the more disability. The higher the score the less disability. The component scores (PCS and MCS) are norm-based to a standard population with a mean of 50 and a standard deviation of 10.

Outcome measures

Outcome measures
Measure
Allopurinol
n=1732 Participants
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Mean Change From Baseline to Month 6 in SF-36 PCS+MCS
SF-36 Physical Component Summary
3.88 units on a scale
Standard Deviation 8.458
Mean Change From Baseline to Month 6 in SF-36 PCS+MCS
SF-36 Mental Health Component Summary
0.71 units on a scale
Standard Deviation 9.076

Adverse Events

Allopurinol

Serious events: 52 serious events
Other events: 654 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Allopurinol
n=1732 participants at risk
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Blood and lymphatic system disorders
Anaemia
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Acute coronary syndrome
0.12%
2/1732 • Number of events 2 • 6 months
Cardiac disorders
Acute myocardial infarction
0.17%
3/1732 • Number of events 3 • 6 months
Cardiac disorders
Atrial fibrillation
0.12%
2/1732 • Number of events 2 • 6 months
Cardiac disorders
Atrial flutter
0.12%
2/1732 • Number of events 2 • 6 months
Cardiac disorders
Cardiac failure acute
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Cardiac failure congestive
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Coronary artery occlusion
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Myocardial infarction
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Pericarditis
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Pericarditis constrictive
0.06%
1/1732 • Number of events 1 • 6 months
Cardiac disorders
Supraventricular tachycardia
0.12%
2/1732 • Number of events 2 • 6 months
Gastrointestinal disorders
Colonic obstruction
0.06%
1/1732 • Number of events 1 • 6 months
Gastrointestinal disorders
Gastric haemorrhage
0.06%
1/1732 • Number of events 1 • 6 months
Gastrointestinal disorders
Intestinal obstruction
0.06%
1/1732 • Number of events 1 • 6 months
Gastrointestinal disorders
Pancreatitis
0.06%
1/1732 • Number of events 1 • 6 months
Gastrointestinal disorders
Small intestinal obstruction
0.12%
2/1732 • Number of events 2 • 6 months
General disorders
Death
0.06%
1/1732 • Number of events 1 • 6 months
General disorders
Non-cardiac chest pain
0.06%
1/1732 • Number of events 1 • 6 months
General disorders
Sudden death
0.06%
1/1732 • Number of events 1 • 6 months
Hepatobiliary disorders
Biliary colic
0.06%
1/1732 • Number of events 1 • 6 months
Hepatobiliary disorders
Cholelithiasis
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Abscess
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Abscess intestinal
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Abscess limb
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Cellulitis
0.12%
2/1732 • Number of events 2 • 6 months
Infections and infestations
Cholecystitis infective
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Diverticulitis
0.12%
2/1732 • Number of events 2 • 6 months
Infections and infestations
Gastroenteritis
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Meningitis viral
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Osteomyelitis
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Perirectal abscess
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Pneumonia
0.17%
3/1732 • Number of events 3 • 6 months
Infections and infestations
Sepsis
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Staphylococcal bacteraemia
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Staphylococcal infection
0.06%
1/1732 • Number of events 1 • 6 months
Infections and infestations
Urinary tract infection
0.06%
1/1732 • Number of events 1 • 6 months
Injury, poisoning and procedural complications
Foot fracture
0.06%
1/1732 • Number of events 1 • 6 months
Injury, poisoning and procedural complications
Ligament rupture
0.06%
1/1732 • Number of events 1 • 6 months
Injury, poisoning and procedural complications
Tendon rupture
0.06%
1/1732 • Number of events 1 • 6 months
Investigations
Blood glucose increased
0.06%
1/1732 • Number of events 1 • 6 months
Investigations
Blood pressure increased
0.06%
1/1732 • Number of events 1 • 6 months
Investigations
Pancreatic enzymes increased
0.06%
1/1732 • Number of events 1 • 6 months
Metabolism and nutrition disorders
Gout
0.12%
2/1732 • Number of events 2 • 6 months
Metabolism and nutrition disorders
Lactic acidosis
0.06%
1/1732 • Number of events 1 • 6 months
Musculoskeletal and connective tissue disorders
Gouty arthritis
0.06%
1/1732 • Number of events 1 • 6 months
Musculoskeletal and connective tissue disorders
Osteoarthritis
0.06%
1/1732 • Number of events 1 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Acute lymphocytic leukaemia
0.06%
1/1732 • Number of events 1 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Bladder cancer
0.06%
1/1732 • Number of events 1 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma
0.06%
1/1732 • Number of events 1 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Prostate cancer
0.12%
2/1732 • Number of events 2 • 6 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Renal cell carcinoma
0.06%
1/1732 • Number of events 1 • 6 months
Nervous system disorders
Convulsion
0.06%
1/1732 • Number of events 1 • 6 months
Nervous system disorders
Haemorrhagic stroke
0.06%
1/1732 • Number of events 1 • 6 months
Nervous system disorders
Ischaemic stroke
0.06%
1/1732 • Number of events 1 • 6 months
Psychiatric disorders
Bipolar I disorder
0.06%
1/1732 • Number of events 1 • 6 months
Psychiatric disorders
Breathing-related sleep disorder
0.06%
1/1732 • Number of events 1 • 6 months
Psychiatric disorders
Panic disorder with agoraphobia
0.06%
1/1732 • Number of events 1 • 6 months
Renal and urinary disorders
Nephrolithiasis
0.06%
1/1732 • Number of events 1 • 6 months
Renal and urinary disorders
Renal failure
0.06%
1/1732 • Number of events 1 • 6 months
Renal and urinary disorders
Renal failure acute
0.06%
1/1732 • Number of events 1 • 6 months
Renal and urinary disorders
Urinary incontinence
0.06%
1/1732 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Asthma
0.06%
1/1732 • Number of events 2 • 6 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
0.06%
1/1732 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.06%
1/1732 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.06%
1/1732 • Number of events 1 • 6 months
Vascular disorders
Deep vein thrombosis
0.06%
1/1732 • Number of events 1 • 6 months
Vascular disorders
Thrombosis
0.06%
1/1732 • Number of events 1 • 6 months

Other adverse events

Other adverse events
Measure
Allopurinol
n=1732 participants at risk
Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
Infections and infestations
Upper Respiratory Tract Infection
5.8%
100/1732 • 6 months
Gastrointestinal disorders
Diarrhoea
4.4%
77/1732 • 6 months
Musculoskeletal and connective tissue disorders
Athralgia
3.2%
55/1732 • 6 months
Infections and infestations
Nasalphrayngitis
3.1%
53/1732 • 6 months
Investigations
Blood creatine phosphokinase increased
2.8%
48/1732 • 6 months
Musculoskeletal and connective tissue disorders
Back pain
2.6%
45/1732 • 6 months
Musculoskeletal and connective tissue disorders
Pain in extremity
2.5%
44/1732 • 6 months
Vascular disorders
Hypertension
2.5%
43/1732 • 6 months
Nervous system disorders
Headache
2.4%
41/1732 • 6 months
Investigations
Alanine aminotransferase increased
2.2%
38/1732 • 6 months
Infections and infestations
Bronchitis
1.7%
29/1732 • 6 months
Infections and infestations
Influenza
1.5%
26/1732 • 6 months
Skin and subcutaneous tissue disorders
Rash
1.5%
26/1732 • 6 months
Injury, poisoning and procedural complications
Muscle strain
1.4%
25/1732 • 6 months
Gastrointestinal disorders
Nausea
1.4%
24/1732 • 6 months
Investigations
Aspartate aminotransferase increased
1.3%
23/1732 • 6 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
1.3%
22/1732 • 6 months
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
1.2%
20/1732 • 6 months
Infections and infestations
Urinary tract infection
1.1%
19/1732 • 6 months
Investigations
Liver function test abnormal
1.1%
19/1732 • 6 months

Additional Information

Vice President, Clinical Research and Development

Ardea Biosciences, Inc.

Phone: 858.652.6587

Results disclosure agreements

  • Principal investigator is a sponsor employee PI shall submit a copy of the Publication to Sponsor for review at least 45 days prior to its proposed submission. Sponsor reserves the right to delay any such publication for an additional period of 60 days. Upon Sponsor's request, PI agrees to delete from the proposed publication any Confidential Information. PI agrees not to release any publication without the prior written permission of Sponsor.
  • Publication restrictions are in place

Restriction type: OTHER