Drug-Drug Interaction Study of ABP-671 in Gout Patients

This study is looking at how a new drug, ABP-671, interacts with allopurinol, a common medication for gout. If you have gout and are currently taking allopurinol, you might be able to join. The study will measure the levels of allopurinol in your blood at different times to see if ABP-671 changes how your body handles allopurinol. We're looking for about 20 adults, aged 18 to 75, with a diagnosis of gout. The study is open-label, meaning both you and the study team will know which medications you are taking. The goal is to understand how these two drugs work together.

Study design
This is an open-label study with about 20 participants. Each participant will receive allopurinol, then allopurinol plus ABP-671, and finally ABP-671 alone, each for 7 days.
What's involved
You would take allopurinol for 7 days, then allopurinol plus ABP-671 for 7 days, and then ABP-671 alone for 7 days. Blood samples will be taken at baseline and on specific days throughout the study (Day 1, 7, 8, 14, 15, 21).
Compensation
Not stated in the trial record.
Follow-up
Blood levels of allopurinol will be measured up to Day 21.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07367971

Drug-Drug Interaction Study of ABP-671 in Gout Patients

Recruiting
PHASE1Ages 18–75InterventionalTreatment
Atom Therapeutics Co., Ltd
~20 participants
Updated 2026-04-14 on ClinicalTrials.gov
What's tested:ABP-671 plus allopurinol

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Maximum plasma concentration (Cmax) of allopurinol
Measured over Base line, through Day1, Day 7,Day8,D14,D15,D21
+1 more outcome measured
Gout Chronic
Gout
DDI (Drug-Drug Interaction)
1 sites across 1 states
North Carolina1

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Eligibility criteria

Inclusion

Adults 18-75 years with clinical diagnosis of gout.
Stable Allopurinol therapy QD for ≥14 days prior to Day 1.
Cohort N: Normal renal function.
Cohort R: Moderate renal impairment.

Exclusion

Clinically significant hepatic impairment.
History of Allopurinol hypersensitivity.
Pregnancy or breastfeeding.
  • Maximum plasma concentration (Cmax) of allopurinolBase line, through Day1, Day 7,Day8,D14,D15,D21

    Maximum observed plasma concentration (Cmax) of allopurinol following administration of allopurinol alone and in combination with ABP-671 at steady state.

  • Area under the plasma concentration-time curve over the dosing interval (AUC) of allopurinolBase line, through Day1, Day 7,Day8,D14,D15,D21

    Area under the plasma concentration-time curve over the dosing interval (AUC) of allopurinol following administration of allopurinol alone and in combination with ABP-671 at steady state.