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Not yet recruitingNCT07613164Updated May 29, 2026

Probiotic-Uricase Complex Preparation for Improving Uric Acid Metabolism in Patients With Hyperuricemia

An interventional study of Probiotic-uricase complex preparation in Hyperuricemia, Gout, sponsored by Maanshan Shiqiye Hospital. Not yet recruiting. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-05-29.

Sponsored by Maanshan Shiqiye Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

This single-center, open-label, two-arm interventional study aims to evaluate the efficacy and safety of a probiotic-uricase complex preparation in patients with hyperuricemia. Participants aged 18 to 60 years with hyperuricemia will be assigned to either the intervention group or the control group. Participants in the intervention group will receive the probiotic-uricase complex preparation during a 2-week treatment period according to the study protocol in addition to conventional management, while participants in the control group will receive conventional management alone. Blood, urine, and fecal samples will be collected at baseline and during follow-up. The primary goal is to assess the change in serum uric acid from baseline after treatment. Secondary assessments include changes in uric acid-related metabolites in blood, urine, and feces, alterations in gut microbiota composition based on metagenomic analysis, and safety outcomes including laboratory parameters and adverse events. This study will explore whether the probiotic-uricase complex may serve as a safe and effective oral intervention for improving uric acid metabolism in patients with hyperuricemia.

Read the detailed description

This is a single-center, open-label, two-arm interventional clinical study in adults with hyperuricemia. Participants aged 18 to 60 years who meet the study criteria and provide informed consent will be enrolled. The planned sample size is 45 participants, including 30 participants in the intervention group and 15 participants in the control group. Participants in the intervention group will receive the probiotic-uricase complex preparation during a 2-week treatment period according to the study protocol in addition to conventional management, while participants in the control group will receive conventional management alone. Concomitant use of medications or products that may substantially affect gut microbiota or the study intervention, such as antibiotics, immunosuppressive agents, or other microbiome-targeted products, will be restricted according to the protocol. The study consists of a 2-week treatment period followed by a 2-week follow-up period, with assessments performed at Weeks 0, 1, 2, 3, and 4. Clinical and laboratory evaluations will include blood, urine, and fecal sample collection for assessment of uric acid metabolism, related metabolites, gut microbiota composition, and safety parameters. Serum uric acid will be monitored longitudinally to evaluate changes from baseline during treatment and post-treatment follow-up. The primary goal is to assess the effect of the probiotic-uricase complex preparation on serum uric acid in patients with hyperuricemia. Secondary goals are to evaluate changes in uric acid-related metabolites in blood, urine, and feces, explore alterations in gut microbiota composition and uric acid metabolism-related functional profiles based on fecal metagenomic analysis, and assess safety through laboratory testing and adverse event monitoring throughout the study. The results of this study may provide clinical evidence for the use of a probiotic-uricase complex preparation as a novel oral strategy to improve uric acid metabolism in patients with hyperuricemia.

02

Conditions studied

  • Hyperuricemia, Gout

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Keywords

  • Probiotic Intervention
  • Hyperuricemia
  • Gout
  • Urease
03

In context

Hyperuricemia

240 studies on the registry are indexed under Hyperuricemia; 44 are open to participants now.

This study's planned enrollment of 45 is below the median of 68 across 193 interventional studies indexed under Hyperuricemia.

Browse Hyperuricemia studies →

Lead sponsor

Maanshan Shiqiye Hospital is the lead sponsor of 2 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18-60 years.
  • Men with serum uric acid levels > 420 μmol/L on 2 separate occasions (not on the same day), women with serum uric acid levels > 360 μmol/L on 2 separate occasions (not on the same day).
  • Participants must sign an form and be able to cooperate with sample collection.

Exclusion criteria

Exclusion Criteria:

  • A history of or current presence of a clearly defined organic intestinal disease, such as intestinal malignant tumor, inflammatory bowel disease, intestinal obstruction, or intestinal polyp.
  • Concurrent severe systemic diseases, including severe cardiovascular or cerebrovascular disease (eg., myocardial infarction within the past 6 months, Class III-IV heart failure, or uncontrolled hypertension), significant liver function abnormalities ( or AST > 2 times the ), moderate-to-severe renal insufficiency ( \< 45 mL/min/1.73 m²) or uncontrolled diabetes ( ≥ 9%).
  • Use of antibiotic, probiotic preparation, or other drugs that may significantly alter the gut microbiota within 4 weeks prior to enrollment, or those requiring continued use of such drugs during the study.
  • Women who are pregnant or lactating, or who plan to become pregnant during the study.
  • Participants with severe tophus or gouty nephropathy.
  • Participants who have participated in another clinical trial within 3 months prior to enrollment.
  • Participants with other health problems that render them unsuitable for enrollment.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
45 participants (estimated)

Study arms

  • Experimental
    Probiotic-uricase complex plus conventional management

    Participants in the intervention group will receive the probiotic-uricase complex preparation during a 2-week treatment period in addition to conventional management. A 2-week follow-up period will follow treatment, with assessments at Weeks 0, 1, 2, 3, and 4. Participants maintain their usual diet and avoid additional probiotics or antibiotics. Adherence is monitored through capsule counts and diaries. Clinical and biological evaluations will include blood, urine, and fecal sample collection for assessment of uric acid metabolism, related metabolites, gut microbiota composition, and safety parameters. Serum uric acid will be monitored longitudinally to evaluate changes from baseline during treatment and post-treatment follow-up.

    Dietary Supplement: Probiotic-uricase complex preparation

  • No intervention
    Conventional management alone

    Participants will receive conventional management alone without the probiotic-uricase complex preparation. Assessments will be conducted at Weeks 0, 1, 2, 3, and 4. Participants maintain their usual diet and avoid additional probiotics or antibiotics. Clinical and biological evaluations will include blood, urine, and fecal sample collection for assessment of uric acid metabolism, related metabolites, gut microbiota composition, and safety parameters. Serum uric acid will be monitored longitudinally to evaluate changes from baseline during treatment and post-treatment follow-up.

Interventions

  • Dietary supplementProbiotic-uricase complex preparation

    Participants receive the probiotic-uricase complex preparation capsule orally. Each participant takes it for 2 weeks. Adherence is monitored through capsule counts and diaries. Clinical and biological evaluations will include blood, urine, and fecal sample collection for assessment of uric acid metabolism, related metabolites, gut microbiota composition, and safety parameters. Serum uric acid will be monitored longitudinally to evaluate changes from baseline during treatment and post-treatment follow-up.

06

What researchers measure

Primary outcomes

  1. Change in serum uric acid from baseline

    Change in serum uric acid from baseline to Weeks 1, 2, 3, and 4.

    Time frame: Baseline, Weeks 1, 2, 3, and 4

Secondary outcomes

  1. Change in uric acid-related metabolites in blood, urine, and feces

    Changes in uric acid-related metabolites, including uric acid and allantoin, in blood, urine, and fecal samples.

    Time frame: Baseline, Weeks 1, 2, 3, and 4

  2. Change in gut microbiota composition based on fecal metagenomic analysis

    Changes in gut microbiota composition and relative abundance of uric acid metabolism-related microorganisms based on fecal metagenomic analysis.

    Time frame: Baseline, Weeks 1, 2, 3, and 4

  3. Change in uric acid metabolism-related microbial functional genes

    Changes in the abundance of microbial functional genes related to uric acid metabolism, including genes identified through fecal metagenomic analysis.

    Time frame: Baseline, Weeks 1, 2, 3, and 4

  4. Safety and tolerability: Incidence of treatment-emergent Adverse Events (AEs)

    Treatment-emergent adverse events will be monitored throughout the 4-week intervention period. Results will be reported as the number and percentage of participants experiencing adverse events (AEs) after initiation of the probiotic intervention.

    Time frame: Throughout 4-week intervention

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for May 2026; primary completion for May 2029, 36 months later.

Of 26 interventional studies with no phase under Hyperuricemia, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 34. This study's planned 36 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 17, 2026
First posted
May 29, 2026
StartEst.
May 2026
Primary completionEst.
May 2029
CompletionEst.
May 2029
Last update
May 29, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 29, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07613164
Lead sponsor
Maanshan Shiqiye Hospital
Collaborators
Chinese Academy of Sciences
Responsible party
Sponsor
First posted
May 29, 2026
Start date
May 2026 (estimated)
Primary completion
May 2029 (estimated)
Completion
May 2029 (estimated)
Last update
May 29, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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