Trial Outcomes & Findings for RDEA3170 and Allopurinol Combination Study in Gout Subjects (NCT NCT02279641)

NCT ID: NCT02279641

Last Updated: 2017-12-20

Results Overview

Cmax of Allopurinol/Oxypurinol Alone and In Combination with RDEA3170

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

12 participants

Primary outcome timeframe

22 days

Results posted on

2017-12-20

Participant Flow

12 subjects were randomized

Twelve subjects were randomized to 1 of 2 treatment sequences (Sequence A or B) in a 1:1 ratio.

Participant milestones

Participant milestones
Measure
RDEA3170 or Allopurinol Alone and in Combination (Sequence A)
Days 1 to 7: 10 mg once daily (qd) RDEA3170; Days 8 to 14: 10 mg qd RDEA3170 + 300 mg qd allopurinol; Days 15 to 21: 300 mg qd allopurinol
RDEA3170 or Allopurinol Alone and in Combination (Sequence B)
Days 1 to 7: 300 mg qd allopurinol; Days 8 to 14: 10 mg qd RDEA3170 + 300 mg qd allopurinol; Days 15 to 21: 10 mg qd RDEA3170
Overall Study
STARTED
6
6
Overall Study
COMPLETED
6
6
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

RDEA3170 and Allopurinol Combination Study in Gout Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Sequence A
n=6 Participants
Days 1 to 7: 10 mg once daily (qd) RDEA3170; Days 8 to 14: 10 mg qd RDEA3170 + 300 mg qd allopurinol; Days 15 to 21: 300 mg qd allopurinol
Sequence B
n=6 Participants
Days 1 to 7: 300 mg qd allopurinol; Days 8 to 14: 10 mg qd RDEA3170 + 300 mg qd allopurinol; Days 15 to 21: 10 mg qd RDEA3170
Total
n=12 Participants
Total of all reporting groups
Age, Continuous
53 Years
STANDARD_DEVIATION 10.1 • n=5 Participants
49 Years
STANDARD_DEVIATION 10.4 • n=7 Participants
51 Years
STANDARD_DEVIATION 10.0 • n=5 Participants
Age, Customized
<65
6 Participants
n=5 Participants
6 Participants
n=7 Participants
12 Participants
n=5 Participants
Age, Customized
>=65
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
6 Participants
n=7 Participants
12 Participants
n=5 Participants
Region of Enrollment
United States
6 Participants
n=5 Participants
6 Participants
n=7 Participants
12 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 22 days

Cmax of Allopurinol/Oxypurinol Alone and In Combination with RDEA3170

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Maximum Observed Plasma Concentration (Cmax)
1.13 μg/mL
Interval 0.894 to 1.43
1.51 μg/mL
Interval 1.24 to 1.82
12.8 μg/mL
Interval 11.7 to 14.0
8.68 μg/mL
Interval 7.99 to 9.43

PRIMARY outcome

Timeframe: 22 days

Tmax of Allopurinol/Oxypurinol and RDEA3170 Alone and In Combination

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
n=12 Participants
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Time of Occurrence of Maximum Observed Concentration (Tmax)
1.50 hr
Interval 1.0 to 4.0
1.25 hr
Interval 0.5 to 4.0
4.00 hr
Interval 1.5 to 6.0
3.50 hr
Interval 1.5 to 8.0
3.00 hr
Interval 1.5 to 4.0
3.00 hr
Interval 2.0 to 10.0

PRIMARY outcome

Timeframe: 22 days

AUC 0-24 of Allopurinol/Oxypurinol Alone and In Combination with RDEA3170

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
n=12 Participants
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Area Under the Concentration-time Curve From Time Zero up to 24 Hours Postdose (AUC 0-24)
3.69 μg·hr/mL
Interval 3.24 to 4.21
3.68 μg·hr/mL
Interval 3.28 to 4.13
255 μg·hr/mL
Interval 229.0 to 284.0
157 μg·hr/mL
Interval 140.0 to 177.0
115 μg·hr/mL
Interval 96.5 to 137.0

PRIMARY outcome

Timeframe: 22 days

AUC last of Allopurinol/Oxypurinol Alone and In Combination with RDEA3170

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Sampling Timepoint (AUC Last)
3.50 μg·hr/mL
Interval 3.04 to 4.04
3.61 μg·hr/mL
Interval 3.22 to 4.05
255 μg·hr/mL
Interval 229.0 to 284.0
157 μg·hr/mL
Interval 140.0 to 177.0

PRIMARY outcome

Timeframe: 22 days

t1/2 of Allopurinol/Oxypurinol and RDEA3170 Alone and In Combination

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
n=12 Participants
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Apparent Terminal Half-life (t1/2)
1.06 hr
Interval 0.969 to 1.15
0.992 hr
Interval 0.89 to 1.1
43.2 hr
Interval 36.1 to 51.7
29.1 hr
Interval 23.9 to 35.4
11.5 hr
Interval 8.43 to 15.6
12.5 hr
Interval 8.99 to 17.4

PRIMARY outcome

Timeframe: 22 days

Ae0-24 of Allopurinol/Oxypurinol Alone and In Combination with RDEA3170

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Amount Excreted in Urine as Unchanged Drug or Metabolite (Ae0-24)
25.4 mg
Interval 22.1 to 29.2
22.7 mg
Interval 19.2 to 26.9
231 mg
Interval 216.0 to 248.0
275 mg
Interval 262.0 to 290.0

PRIMARY outcome

Timeframe: 22 days

CLR0-24 of Allopurinol/Oxypurinol and RDEA3170 Alone and In Combination

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
n=12 Participants
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Renal Clearance of the Drug From Time Zero up to 24 Hours Postdose (CRL0-24)
120 mL/min
Interval 106.0 to 135.0
103 mL/min
Interval 87.1 to 122.0
15.1 mL/min
Interval 13.0 to 17.6
29.2 mL/min
Interval 25.1 to 33.9
9.28 mL/min
Interval 7.43 to 11.6
9.75 mL/min
Interval 7.73 to 12.3

PRIMARY outcome

Timeframe: 22 days

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Pharmacodynamics (PD) Profile of Uric Acid From Serum and Urine
Serum Urate Maximum % Change
-50.5 Percentage (%)
Standard Error 2.43 • Interval 13.0 to 17.6
-65.2 Percentage (%)
Standard Error 1.57 • Interval 25.1 to 33.9
-43.0 Percentage (%)
Standard Error 1.57 • Interval 7.43 to 11.6
Pharmacodynamics (PD) Profile of Uric Acid From Serum and Urine
Urine Uric Acid % Change (0-24h)
9.88 Percentage (%)
Standard Error 7.61
-21.6 Percentage (%)
Standard Error 5.58
-47.4 Percentage (%)
Standard Error 2.67
Pharmacodynamics (PD) Profile of Uric Acid From Serum and Urine
Renal Clearance of Uric Acid % Change (0-24h)
122 Percentage (%)
Standard Error 46.8
125 Percentage (%)
Standard Error 42.2
-8.50 Percentage (%)
Standard Error 6.04
Pharmacodynamics (PD) Profile of Uric Acid From Serum and Urine
Fract. Excretion of Uric Acid % Change (0-24h)
77.4 Percentage (%)
Standard Error 18.0
78.4 Percentage (%)
Standard Error 21.9
-12.0 Percentage (%)
Standard Error 5.46

PRIMARY outcome

Timeframe: 22 days

Cmax of RDEA3170 Alone and In Combination with Allopurinol

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Maximum Observed Plasma Concentration (Cmax)
14.6 ng/mL
Interval 12.2 to 17.5
14.5 ng/mL
Interval 11.7 to 17.9

PRIMARY outcome

Timeframe: 22 days

AUC 0-24 of RDEA3170 Alone and In Combination with Allopurinol

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Area Under the Concentration-time Curve From Time Zero up to 24 Hours Postdose (AUC 0-24)
120 μg*hr/mL
Interval 98.1 to 147.0
115 μg*hr/mL
Interval 96.5 to 137.0

PRIMARY outcome

Timeframe: 22 days

AUC last of RDEA3170 Alone and In Combination with Allopurinol

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Sampling Timepoint (AUC Last)
120 ng·hr/mL
Interval 98.1 to 147.0
115 ng·hr/mL
Interval 96.5 to 137.0

PRIMARY outcome

Timeframe: 22 days

Ae0-24 of RDEA3170 Alone and In Combination with Allopurinol

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Amount Excreted in Urine as Unchanged Drug or Metabolite (Ae0-24)
66.8 ug
Interval 51.8 to 86.1
67.2 ug
Interval 51.7 to 87.4

SECONDARY outcome

Timeframe: 22 days

Outcome measures

Outcome measures
Measure
Allopurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Allopurinol: RDEA3170 + Allopurinol
n=12 Participants
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Oxypurinol: Allopurinol Alone
n=12 Participants
Allopurinol 300 mg qd
Oxypurinol: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
RDEA3170: RDEA3170 Alone
RDEA3170 10 mg qd
RDEA3170: RDEA3170 + Allopurinol
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Incidence of Treatment-Emergent Adverse Events
2 Number of participants
2.43 • Interval 13.0 to 17.6
1 Number of participants
1.57 • Interval 25.1 to 33.9
3 Number of participants
1.57 • Interval 7.43 to 11.6

Adverse Events

RDEA3170 10 mg qd

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

RDEA3170 10 mg qd + Allopurinol 300 mg qd

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Allopurinol 300 mg qd

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
RDEA3170 10 mg qd
n=12 participants at risk
RDEA3170 10 mg qd
RDEA3170 10 mg qd + Allopurinol 300 mg qd
n=12 participants at risk
RDEA3170 10 mg qd + Allopurinol 300 mg qd
Allopurinol 300 mg qd
n=12 participants at risk
Allopurinol 300 mg qd
Gastrointestinal disorders
Diarrhoea
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Gastrointestinal disorders
Toothache
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Gastrointestinal disorders
Vomiting
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Infections and infestations
Gastroenteritis
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Infections and infestations
Nasopharyngitis
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Nervous system disorders
Dizziness
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Nervous system disorders
Headache
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Skin and subcutaneous tissue disorders
Petechiae
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
Musculoskeletal and connective tissue disorders
Arthralgia
8.3%
1/12 • Number of events 1 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.
0.00%
0/12 • 22 days
Overall number of baseline participants used to determine number of participants at risk.

Additional Information

Jesse Hall, MD

Study Information Center AstraZeneca

Phone: +1 877-240-9479

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