The efficacy of ULORIC has been demonstrated in three large phase 3, randomized,
double blind, controlled, head-to-head clinical trials with allopurinol.
All 3 trials—APEX, FACT, and CONFIRMS—demonstrated the superiority of ULORIC 80
mg over allopurinol 300 mg in lowering serum uric acid to < 6 mg/dL at final
visit. Patients with mild to moderate renal impairment*
or high baseline serum uric acid level also benefited from ULORIC.
- ULORIC 40 mg, the recommended starting dose, was as effective
as allopurinol at lowering serum uric acid.
- ULORIC 80 mg was proven superior to allopurinol at lowering
serum uric acid in 3 head-to-head studies.
Important Safety Information

§ In APEX, allopurinol patients (n=10) with serum
creatinine > 1.5 mg/dL and ≤ 2.0 mg/dL were dosed at 100 mg daily. In CONFIRMS,
allopurinol patients (n=145) with estimated
ClCr ≥ 30 mL/min and
ClCr ≤ 59 mL/min were dosed at 200 mg daily. All other patients
received 300 mg daily.
The participants in the three ULORIC phase 3 clinical trials had a mean baseline
serum uric acid level of 9.7 mg/dL and were reflective of the chronic gout population:

Clinical Study Details
APEX: Allopurinol and Placebo Controlled Efficacy
Study of FebuXostat
- Design:
A 6-month, multicenter, double-blind trial comparing the efficacy of ULORIC versus
placebo and allopurinol in achieving a target serum uric acid level of < 6 mg/dL
at final visit in patients with hyperuricemia and gout. All participants had a baseline
serum uric acid level of ≥ 8 mg/dL.
- Study arms:
There were 5 study arms: placebo (n=134), allopurinol 300 mg/100 mg*
(n=268), ULORIC 80 mg (n=267), ULORIC 120 mg (n=269), and ULORIC 240 mg (n=134,
for safety assessment only). Patients received anti-inflammatory prophylaxis for
8 or 10 weeks (naproxen 250 mg twice daily or colchicine 0.6 mg once daily), with
length and start date dependent on previous use of urate-lowering therapy.
- Results:
A significantly higher proportion of patients achieved a serum uric acid level of
< 6 mg/dL on ULORIC 80 mg (72%, n=253)* than
on allopurinol† (39%, n=263) at the final visit.
FACT: Febuxostat and Allopurinol Controlled
Trial
- Design:
A 12-month, multicenter, double-blind trial comparing the efficacy of ULORIC versus
allopurinol in achieving a target serum uric acid level of < 6 mg/dL at final
visit in patients with hyperuricemia and gout. All participants had a baseline serum uric acid
level of ≥ 8 mg/dL.
- Study arms:
There were 3 study arms: allopurinol 300 mg (n=253), ULORIC 80 mg (n=256), and ULORIC
120 mg (n=251). Patients received anti-inflammatory prophylaxis for 8 or 10 weeks
(naproxen 250 mg twice daily or colchicine 0.6 mg once daily), with length and start
date dependent on previous use of urate-lowering therapy.
- Results:
A significantly higher proportion of patients achieved a serum uric acid level of
< 6 mg/dL on ULORIC 80 mg (74%, n=249)* than
on allopurinol (36%, n=242) at the final visit.
CONFIRMS: CONfirmation of Febuxostat In Reducing
and Maintaining Serum Urate
- Design:
A 6-month, multicenter, double-blind trial comparing the efficacy of ULORIC versus
allopurinol in achieving a target serum uric acid level of < 6 mg/dL at final
visit in patients with hyperuricemia and gout. All participants had a baseline serum
uric acid level ≥ 8 mg/dL.
- Study arms:
There were 3 study arms: allopurinol 300 mg/200 mg*
(n=756), ULORIC 40 mg (n=757), and ULORIC 80 mg (n=756). Patients received anti-inflammatory
prophylaxis for 6 months (colchicine 0.6 mg once daily or naproxen 250 mg twice
daily); subjects on previous urate-lowering therapy received prophylaxis for an
additional month before the study began.
- Results:
- All study participants
ULORIC 40 mg (n=757) was as effective as allopurinol in lowering serum uric acid
to < 6 mg/dL at the final visit
ULORIC 80 mg (n=756) was superior to allopurinol (n=755) at lowering serum uric
acid to < 6 mg/dL at the final visit (67% vs 42%)*
- Patients with mild to moderate renal impairment*
ULORIC was superior to allopurinol in patients with mild to moderate renal impairment.* A significantly higher proportion of patients achieved
a serum uric acid level of < 6 mg/dL on ULORIC 80 mg (72%, n=503)†
and ULORIC 40 mg (50%, n=479)‡ than on allopurinol§ (42%, n=501)
at the final visit.
CONFIRMS included a group of patients with renal impairment as part of its trial
design. Among patients with mild to moderate renal impairment,*
a significantly higher proportion of patients achieved a serum uric acid level of
< 6 mg/dL at the final visit with ULORIC 40 mg (50%, n=479)†
and ULORIC 80 mg (72%, n=503)‡ than with allopurinol (42%, n=501).
More about ULORIC Efficacy
ULORIC has a non-purine-based structure and is not expected to inhibit other enzymes
involved in purine and pyrimidine synthesis and metabolism at therapeutic concentrations.

ULORIC vs Allopurinol Comparison
ULORIC is eliminated by both hepatic and renal pathways. Therefore, no dose adjustment
is required for patients with mild or moderate renal or hepatic impairment.*

ULORIC vs Allopurinol Comparison
ULORIC Mechanism of Action