The COMPARE head-to-head, randomized controlled trial of SEL-212 (pegadricase plus rapamycin-containing nanoparticle, ImmTOR™) versus pegloticase for refractory gout

© The Author(s) 2023. Published by Oxford University Press on behalf of the British Society for Rheumatology..

OBJECTIVES: Serum urate (SU) lowering with PEGylated uricases in gout can reduce flares and tophi. However, treatment-emergent anti-drug antibodies adversely affect safety and efficacy and the currently approved PEGylated uricase pegloticase requires twice-monthly infusions. Investigational SEL-212 therapy aims to promote uricase-specific tolerance via monthly sequential infusions of a proprietary rapamycin-containing nanoparticle (ImmTOR) and pegadricase.

METHODS: COMPARE was a randomized, phase 2, open-label trial of SEL-212 vs pegloticase in adults with refractory gout. SEL-212 [ImmTOR (0.15 mg/kg) and pegadricase (0.2 mg/kg)] was infused monthly or pegloticase (8 mg) twice monthly for 6 months. The primary endpoint was the proportion of participants with SU <6 mg/dl for ≥80% of the time during 3 and 6 months. Secondary outcomes were mean SU, gout flares, number of tender and/or swollen joints and safety.

RESULTS: During months 3 and 6 combined, numerically more participants achieved and maintained a SU <6 mg/dl for ≥80% of the time with SEL-212 vs pegloticase (53.0% vs 46.0%, P = 0.181). The percentage reductions in SU levels were statistically greater during months 3 and 6 with SEL-212 vs pegloticase (-73.79% and -47.96%, P = 0.0161). Reductions in gout flare incidence and number of tender and/or swollen joints were comparable between treatments. There were numerical differences between the most common treatment-related adverse events of interest with SEL-212 and pegloticase: gout flares (60.2% vs 50.6%), infections (25.3% vs 18.4%) and infusion-related reactions (15.7% vs 11.5%), respectively. Stomatitis (and related terms) was experienced by eight participants (9.6%) with SEL-212 and none with pegloticase. Stomatitis, a known event for rapamycin, was associated with ImmTOR only.

CONCLUSIONS: SEL-212 efficacy and tolerability were comparable to pegloticase in refractory gout. This was associated with a substantial reduction in treatment burden with SEL-212 due to decreased infusion frequency vs pegloticase.

CLINICAL TRIAL REGISTRATION: NCT03905512.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:63

Enthalten in:

Rheumatology (Oxford, England) - 63(2024), 4 vom: 02. Apr., Seite 1058-1067

Sprache:

Englisch

Beteiligte Personen:

Baraf, Herbert S B [VerfasserIn]
Khanna, Puja P [VerfasserIn]
Kivitz, Alan J [VerfasserIn]
Strand, Vibeke [VerfasserIn]
Choi, Hyon K [VerfasserIn]
Terkeltaub, Robert [VerfasserIn]
Dalbeth, Nicola [VerfasserIn]
DeHaan, Wesley [VerfasserIn]
Azeem, Rehan [VerfasserIn]
Traber, Peter G [VerfasserIn]
Keenan, Robert T [VerfasserIn]

Links:

Volltext

Themen:

268B43MJ25
3WJQ0SDW1A
EC 1.7.3.3
Gout
Gout Suppressants
Journal Article
Nanotechnology
Pegadricase
Pegloticase
Polyethylene Glycols
R581OT55EA
Randomized Controlled Trial
Rapamycin
SEL-212
Serum urate
Urate Oxidase
Uric Acid
Uricase
Uricosuric Agents

Anmerkungen:

Date Completed 03.04.2024

Date Revised 04.04.2024

published: Print

ClinicalTrials.gov: NCT03905512

Citation Status MEDLINE

doi:

10.1093/rheumatology/kead333

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM359506488