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NCT Number: NCT03823391

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of ABBV-3373 in Participants With Moderate to Severe Rheumatoid Arthritis (RA)

This study will assess the safety, tolerability, and efficacy of ABBV-3373 in participants with moderately to severely active rheumatoid arthritis (RA) on background methotrexate (MTX) compared with adalimumab.

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Key information

Conditions

Rheumatoid Arthritis (RA) Arthritis Arthritis, Rheumatoid Autoimmune Diseases Connective Tissue Diseases Immune System Diseases Joint Diseases Musculoskeletal Diseases Rheumatic Diseases Skin and Connective Tissue Diseases

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Charite Research Organisation GmbH /ID# 210216, Berlin, Germany

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About this study

This study consists of a 12-week double-blind active-controlled phase and a 12 week double-blind extension period.

In the active-controlled period of the first 12 weeks of treatment, participants are randomized to receive either ABBV-3373 100 mg intravenously (IV) every other week (EOW) or adalimumab 80 mg subcutaneously (SC) EOW according to a 2:1 ratio.

At Week 12, the administration of ABBV-3373 was to stop to assess the durability of the observed clinical effects up to 24 weeks. Participants randomized to ABBV-3373 were to receive placebo injections, whereas participants randomized into the adalimumab arm were to continue their 80 mg dosing.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participant has the clinical diagnosis of RA for > 3 months based on the 1987 American College of Rheumatology (ACR) classification criteria or 2010 ACR/European League against Rheumatism (EULAR) criteria.
  • Participant meets the following disease activity criteria: >= 4 swollen joints (based on 28 joint count) and >= 4 tender joints (based on 28 joint count) at Screening and Baseline visits and disease activity score (28 joints) (DAS28) C-reactive protein (CRP) >= 3.2 at Screening.
  • Participant has an incomplete response to methotrexate. Participants must have been on oral or parental MTX therapy >= 3 months and on a stable prescription of 15 to 25 mg/week (or >= 10 mg/week in participants intolerant of MTX at doses >= 15 mg/week) for >= 4 weeks prior to the first dose of study drug. Participant must be expected to be able to continue on stable dose of MTX for the duration of study participation.

Exclusion criteria

  • Participants previously exposed to adalimumab or other anti-tumor necrosis factor (TNF) biologics.
  • Participants previously exposed to non-anti-TNF biologics or targeted synthetic disease-modifying antirheumatic drugs (DMARDs) for RA, with exception of participants exposed for less than 3 months and terminated not due to lack of efficacy or intolerability.

Treatment and study plan

ABBV-3373

Drug

ABBV-3373 is administered as intravenous (IV) infusion

Placebo for ABBV-3373

Drug

Placebo for ABBV-3373 is administered as IV infusion

Adalimumab

Drug

Adalimumab is administered as subcutaneous (SC) injection

Other names: Humira

placebo for adalimumab

Drug

Placebo for adalimumab is administered as subcutaneous (SC) injection

Primary outcomes

  1. Change From Baseline to Week 12 in Disease Activity Score (DAS) 28 (C-reactive Protein [CRP])

    Time frame: Baseline and Week 12

    The DAS28 (CRP) is a composite index used to assess rheumatoid arthritis disease activity, calculated based on the tender joint count (out of 28 evaluated joints), swollen joint count (out of 28 evaluated joints), Patient's Global Assessment of Disease Activity (measured on a visual analog scale [VAS] from 0-100 mm), and hsCRP (in mg/L). Scores on the DAS28 (CRP) range from 0.96 to approximately 10, where higher scores indicate more disease activity. A negative change from Baseline in DAS28 (CRP) indicates improvement in disease activity.

Secondary outcomes

  1. Change From Baseline to Week 12 in Clinical Disease Activity Index (CDAI)

    Time frame: Baseline and Week 12

    The clinical disease activity index (CDAI) is a composite index for assessing disease activity based on the summation of the counts of tender joint count (out of 28 evaluated joints) and swollen joint count (out of 28 evaluated joints), Patient Global Assessment of Disease Activity and Physician Global Assessment of Disease Activity both measured on a VAS from 0 to 10 cm. The total CDAI score ranges from 0 to 76 with higher scores indicating higher disease activity. A negative change from Baseline indicates improvement in disease activity.

  2. Change From Baseline in Simplified Disease Activity Index (SDAI)

    Time frame: Baseline and Week 12

    The SDAI is the numerical sum of five outcome parameters: tender and swollen joint count (based on a 28-joint assessment), Patient Global Assessment of Disease Activity and Physician Global Assessment of Disease Activity both measured on a VAS from 0-10 cm and level of CRP (in mg/dL; normal < 1 mg/dL). The SDAI has a range from 0 to 86, with higher scores indicating higher disease activity. A negative change from Baseline indicates improvement in disease activity.

  3. Change From Baseline to Week 12 in DAS28 (Erythrocyte Sedimentation Rate [ESR])

    Time frame: Baseline and Week 12

    The DAS28 (ESR) is a composite index used to assess rheumatoid arthritis disease activity, calculated based on the tender joint count (out of 28 evaluated joints), swollen joint count (out of 28 evaluated joints), Patient's Global Assessment of Disease Activity (measured on a VAS from 0-100 mm), and ESR (in mm/hr). Scores on the DAS28 (ESR) range from 0 to approximately 10, where higher scores indicate more disease activity. A negative change from Baseline indicates improvement in disease activity.

  4. Percentage of Participants Achieving Low Disease Activity (LDA) Based on DAS28 (CRP) at Week 12

    Time frame: Week 12

    The DAS28 (CRP) is a composite index used to assess rheumatoid arthritis disease activity, calculated based on the tender joint count (out of 28 evaluated joints), swollen joint count (out of 28 evaluated joints), Patient's Global Assessment of Disease Activity (measured on a VAS from 0-100 mm), and hsCRP (in mg/L). Scores on the DAS28 (CRP) range from 0.96 to approximately 10, where higher scores indicate more disease activity. A DAS28 (CRP) score less than or equal to 3.2 indicates low disease activity.

  5. Percentage of Participants With an American College of Rheumatology 50% (ACR50) Response at Week 12

    Time frame: Baseline and Week 12

    Participants who met the following 3 conditions for improvement from Baseline were classified as meeting the ACR50 response criteria:

    • ≥ 50% improvement in 68-tender joint count;
    • ≥ 50% improvement in 66-swollen joint count; and
    • ≥ 50% improvement in at least 3 of the 5 following parameters:
    • Physician global assessment of disease activity
    • Patient global assessment of disease activity
    • Patient assessment of pain
    • Health Assessment Questionnaire - Disability Index (HAQ-DI)
    • High-sensitivity C-reactive protein (hsCRP).

Sponsors and collaborators

Lead sponsor

AbbVie

Industry

Registry information

Official study title

A Randomized, Double-Blind, Double-Dummy, Active Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of ABBV-3373 in Subjects With Moderate to Severe Rheumatoid Arthritis

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Jan 30, 2019
Registry last updated
Jul 19, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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