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Study 102: Multiple Ascending Dose Study of ALLN-346 (Engineered Urate Oxidase)

A Phase I Randomized, Double-Blind, Placebo Controlled, Multiple Ascending Dose Study of ALLN-346 (Engineered Urate Oxidase)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04829435
Acronym
MAD
Enrollment
18
Registered
2021-04-02
Start date
2021-04-21
Completion date
2021-06-01
Last updated
2021-07-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gout, Hyperuricemia

Brief summary

The purpose of this Phase I study is to evaluate the safety and tolerability of ALLN-346 in in normal healthy volunteers, in an ascending dose design. ALLN-346 is an (oral) enzyme that specifically degrades urate in the intestinal tract.

Detailed description

This is a Phase I, 7-day, randomized, double-blind, placebo-controlled, multiple ascending dose study of orally administered ALLN-346 in normal healthy volunteers. Study will take place at a clinical pharmacology unit (CPU). Two sequential cohorts will be dosed and followed for safety through Day 28. The study will evaluate safety and tolerability (including inflammation and immunogenicity), and pharmacodynamics of ALLN-346.

Interventions

ALLN-346 (Engineered Urate Oxidase) is an orally administered, novel urate oxidase; provided as capsules for oral administration; It is a proprietary enzyme designed to degrade urate in the intestinal tract

DRUGPlacebo

Matched placebo capsules are similar in weight and appearance to the ALLN-346 capsules

Sponsors

Allena Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Male or female, age 18 to 55 years * Incapable of pregnancy, not nursing, and agrees to use an effective method of contraception; males subjects must agree to abstain from sperm donation * Good general health as determined by medical history and physical examination * Normal clinical laboratory test results and ECG

Exclusion criteria

* Presence or history of any significant cardiovascular, gastrointestinal, hepatic, renal, pulmonary, hematologic, endocrine, immunologic, dermatologic, neurological, psychiatric disease or history of hyperuricemia * Any other condition (including surgery) known to interfere with the absorption, distribution, metabolism, or excretion of medicines * Positive screen results for drugs of abuse, alcohol, or cotinine or recent history of drug or alcohol abuse, or positive COVID-19 test * Clinically significant abnormal findings on physical examination, vital signs or on electrocardiogram (ECG) * Positive test result for hepatitis B surface antigen, hepatitis C virus antibody, or human immunodeficiency virus (HIV) antibody * Received treatment with or exposure to an Investigational drug or device within 30 days prior to or during Screening * Prior dosing in ALLN-346 clinical study * Per Investigator judgment, is not an ideal clinical study candidate

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Treatment Emergent Adverse Events (TEAEs)28 daysNumber of of participants with treatment emergent adverse events

Secondary

MeasureTime frameDescription
Serum ALLN-3468 daysChange of serum concentration of ALLN-346 (ng/mL) and uricase activity (mU/mL)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026