A Study to Evaluate ALN-XDH in Healthy Subjects and Patients With Gout

NCT ID: NCT05256810

Last Updated: 2024-03-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-02-25

Study Completion Date

2023-01-25

Brief Summary

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The purpose of this study is to:

* Part A: Evaluate the safety and tolerability of single ascending doses of ALN-XDH in healthy adult participants
* Part B: Evaluate the safety, tolerability and efficacy of ALN-XDH as monotherapy in adult patients with gout
* Part C: Evaluate the safety, tolerability and efficacy of ALN-XDH as add-on therapy in adult patients with gout

Detailed Description

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Conditions

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Gout

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Part A: ALN-XDH

A single dose of ALN-XDH administered by subcutaneous (SC) injection.

Group Type EXPERIMENTAL

ALN-XDH

Intervention Type DRUG

ALN-XDH administered by SC injection

Part A: Placebo

A single dose of placebo administered by SC injection.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo administered by SC injection

Part B: ALN-XDH Single Dose

A single dose of ALN-XDH administered by SC injection.

Group Type EXPERIMENTAL

ALN-XDH

Intervention Type DRUG

ALN-XDH administered by SC injection

Part B: ALN-XDH Multiple Dose

Multiple doses of ALN-XDH administered by SC injection.

Group Type EXPERIMENTAL

ALN-XDH

Intervention Type DRUG

ALN-XDH administered by SC injection

Part B: Placebo

Multiple doses of placebo administered by SC injection.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo administered by SC injection

Part C: ALN-XDH

A single dose of ALN-XDH administered by SC injection.

Group Type EXPERIMENTAL

ALN-XDH

Intervention Type DRUG

ALN-XDH administered by SC injection

Part C: Placebo

A single dose of placebo administered by SC injection.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo administered by SC injection

Interventions

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ALN-XDH

ALN-XDH administered by SC injection

Intervention Type DRUG

Placebo

Placebo administered by SC injection

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Part A: has serum uric acid (sUA) level ≥4 mg/dL and ≤7 mg/dL
* Parts B and C: meets the American College of Rheumatology criteria for acute arthritis of primary gout
* Part B: has an sUA level ≥8 mg/dL while not receiving urate-lowering therapy (ULT) or following a 1-week washout period of prior ULT
* Part C: has been on a stable dose of allopurinol for gout for ≥6 weeks prior to screening
* Part C: has an sUA level ≥6 mg/dL

Exclusion Criteria

* Parts A, B and C: Has received an investigational agent within the last 30 days
* Parts A, B and C: Has experienced or is being treated for acute gout flare(s) within 14 days prior to randomization
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Alnylam Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Alnylam Pharmaceuticals

Locations

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Clinical Trial Site

London, , United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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2021-005773-68

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ALN-XDH-001

Identifier Type: -

Identifier Source: org_study_id

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