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Rheumatoid ArthritisPhase 2NCT05165771

Study to Evaluate Safety, Tolerability, and Efficacy of GS-5718 in Participants With Active Rheumatoid Arthritis Who Have an Inadequate Response to Disease-modifying Antirheumatic Drug(s) (bDMARDs) Treatment

A Phase 2 study testing GS-5718 and Tofacitinib 5 mg in people with Rheumatoid Arthritis, run by Gilead Sciences.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The primary objective of the study is to evaluate the effect of GS-5718 versus placebo for the treatment of rheumatoid arthritis (RA) as measured by change from baseline in Disease Activity Score (DAS) based on 28 joints using C-reactive protein (CRP) (DAS28[CRP]) at Week 12. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Rheumatoid Arthritis
What is being tested?
GS-5718 and Tofacitinib 5 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
No sites listed yet
Study dates
Jul 2022to Mar 2023
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of rheumatoid arthritis (RA) ≥ 3 months prior to screening fulfilling the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria for RA
  • Rheumatoid factor (RF) and/or anti-citrullinated protein antibodies (ACPA) positivity
  • Individual fulfills all of the following minimum disease activity criteria:
  • ≥ 6 swollen joints (from a swollen joint count based on 66 joints [SJC66]) provided this would also fulfill ≥ 4 swollen joints (from a swollen joint count based on 28 joints [SJC28]) at screening and Day 1, and
  • ≥ 6 tender joints (from a tender joint count based on 68 joints [TJC68]), provided this would also fulfill ≥ 4 tender joints (from a tender joint count based on 28 joints [TJC28]) at screening and Day 1, and
  • hsCRP > upper limit of normal at screening
  • Received at least one bDMARD for the treatment of RA to which there is a lack of efficacy and/or intolerance.

Who cannot join

  • Individuals who do not qualify per the tofacitinib label and/or local guidelines should not be enrolled.
  • Prior exposure to any Janus kinase inhibitor
  • Note: Other protocol defined Inclusion/Exclusion criteria may apply.

About this study

Official title: A Randomized, Double-Blind, Placebo-Controlled, Multicenter, Phase 2 Proof-of-Concept Study to Evaluate Safety, Tolerability, and Efficacy of GS-5718 on Background Therapy With Conventional Synthetic Disease-modifying Antirheumatic Drug(s) (csDMARDs) in Participants With Active Rheumatoid Arthritis Who Have an Inadequate Response to Biologic DMARD(s) Treatment

The primary objective of the study is to evaluate the effect of GS-5718 versus placebo for the treatment of rheumatoid arthritis (RA) as measured by change from baseline in Disease Activity Score (DAS) based on 28 joints using C-reactive protein (CRP) (DAS28[CRP]) at Week 12.

Being tested
GS-5718, Placebo to match GS-5718, Tofacitinib 5 mg, Placebo to match Tofacitinib
Medical subject headings
Arthritis, Rheumatoid

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GS-5718Drug

    Tablets administered orally

  • GS-5718Drug

    Tablets administered orally

  • Placebo to match GS-5718Drug

    Tablets administered orally

  • Tofacitinib 5 mgDrug

    Also called XELJANZ®

    Tablets administered orally

  • Placebo to match TofacitinibDrug

    Tablets administered orally

Study groups in NCT05165771
Study groupRoleWhat they receive
GS-5718 Dose AExperimentalParticipants will receive GS-5718 Dose A once daily + placebo to match (PTM) GS-5718 Dose B once daily + PTM tofacitinib twice daily for up to 12 weeks.
Receives: Drug: GS-5718; Drug: Placebo to match GS-5718; Drug: Placebo to match Tofacitinib
GS-5718 Dose BExperimentalParticipants will receive GS-5718 Dose B once daily + PTM GS-5718 Dose A once daily + PTM tofacitinib twice daily for up to 12 weeks.
Receives: Drug: GS-5718; Drug: Placebo to match GS-5718; Drug: Placebo to match Tofacitinib
TofacitinibActive comparatorParticipants will receive tofacitinib 5 mg twice daily + PTM GS-5718 (Dose A + Dose B) once daily for up to 12 weeks.
Receives: Drug: Placebo to match GS-5718; Drug: Tofacitinib 5 mg
PlaceboPlacebo comparatorParticipants will receive PTM GS-5718 (Dose A + Dose B) once daily + PTM tofacitinib twice daily for up to 12 weeks.
Receives: Drug: Placebo to match GS-5718; Drug: Placebo to match Tofacitinib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in Disease Activity Score (DAS) Based on 28 Joints Using C-reactive Protein (CRP) DAS28 (CRP) at Week 12

    The DAS28(CRP) is a measure of the participant's disease activity calculated using the tender joint counts (28 joints), swollen joint counts (28 joints), subject's global assessment (SGA) of disease activity assessed using visual analog scale (VAS) on a scale of 0-100 (0 indicating no arthritis and 100 indicating extremely active arthritis), and high-sensitivity C-reactive protein (hsCRP) measurement for a total possible score of 1 to 9.4. Higher values indicate higher disease activity. A negative change from baseline indicates improvement.

    Measured: Baseline, Week 12

Secondary outcomes (16)
  1. Percentage of Participants Who Achieve American College of Rheumatology 20% Improvement (ACR20) Response at Week 12

    ACR20 response is achieved when the participant has: ≥20% improvement (reduction) from baseline in tender joint count based on 68 joints (TJC68), swollen joint count based on 66 joints (SJC66) and in at least 3 of the following 5 items: physician's global assessment of disease activity (PGA) assessed using VAS on a scale of 0-100 (0 indicating no disease activity and 100 indicating maximum disease activity) and SGA assessed using VAS on a scale of 0-100 (0 indicating no arthritis and 100 indicating extremely active arthritis); participant's pain assessment using VAS on a scale of 0-100 (0 indicating no pain and 100 indicating severe pain); health assessment questionnaire-disability index (HAQ-DI) score contains 20 questions,8 components: dressing/ grooming, arising, eating, walking, hygiene, reach, grip, and errands/chores and scored on a scale of 0-3 (0 and 3 indicating without difficulty and unable to do); hsCRP.

    Measured: Week 12

  2. Percentage of Participants Who Achieve ACR 50% Improvement (ACR50) Response at Week 12

    ACR50 response is achieved when the participant has: ≥ 50% improvement (reduction) from baseline in TJC68, SJC66 and in at least 3 of the following 5 items: PGA assessed using VAS on a scale of 0-100 (0 indicating no disease activity and 100 indicating maximum disease activity) and SGA assessed using VAS on a scale of 0-100 (0 indicating no arthritis and 100 indicating extremely active arthritis); participant's pain assessment using VAS on a scale of 0-100 (0 indicating no pain and 100 indicating severe pain); HAQ-DI score contains 20 questions, 8 components: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and errands/chores and scored on a scale of 0-3 (0 and 3 indicating without difficulty and unable to do); hsCRP.

    Measured: Week 12

  3. Percentage of Participants Who Achieve ACR 70% Improvement (ACR70) Response at Week 12

    ACR70 response is achieved when the participant has: ≥ 70% improvement (reduction) from baseline in TJC68, SJC66 and in at least 3 of the following 5 items: PGA assessed using VAS on a scale of 0-100 (0 indicating no disease activity and 100 indicating maximum disease activity) and SGA assessed using VAS on a scale of 0-100 (0 indicating no arthritis and 100 indicating extremely active arthritis); participant's pain assessment using VAS on a scale of 0-100 (0 indicating no pain and 100 indicating severe pain); HAQ-DI score contains 20 questions, 8 components: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and errands/chores and scored on a scale of 0-3 (0 and 3 indicating without difficulty and unable to do); hsCRP.

    Measured: Week 12

  4. Change From Baseline in Simplified Disease Activity Index (SDAI) at Week 12

    SDAI is a composite measure that sums the TJC28, SJC28, SGA, PGA, and the hsCRP (in mg/dL). PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). Higher score indicates more severe disease activity status and total possible score is 0 to 86. A negative change from baseline indicates improvement.

    Measured: Baseline, Week 12

  5. Change From Baseline in Clinical Disease Activity Index (CDAI) at Week 12

    CDAI is calculated using formula: CDAI = TJC based on 28 joints (TJC28) + SJC based on 28 joints (SJC28) + SGA + PGA. PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). CDAI can range from 0 to 76, with higher score indicating more severe disease activity status. A negative change from baseline indicates improvement.

    Measured: Baseline, Week 12

  6. Percentage of Participants Who Achieve SDAI ≤ 11 at Week 12

    SDAI is a composite measure that sums the TJC28, SJC28, SGA, PGA, and the hsCRP (in mg/dL). PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). Higher score indicates more severe disease activity status and total possible score is 0 to 86.

    Measured: Week 12

  7. Percentage of Participants Who Achieve CDAI ≤ 10 at Week 12

    CDAI is calculated using formula: CDAI = TJC based on 28 joints (TJC28) + SJC based on 28 joints (SJC28) + SGA + PGA. PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). CDAI can range from 0 to 76, with higher score indicating more severe disease activity status.

    Measured: Week 12

  8. Percentage of Participants Who Achieve DAS28(CRP) ≤ 3.2 at Week 12

    The DAS28(CRP) is a measure of the participant's disease activity calculated using the tender joint counts (28 joints), swollen joint counts (28 joints), SGA and hsCRP measurement for a total possible score of 1 to 9.4. Higher values indicate higher disease activity.

    Measured: Week 12

  9. Change From Baseline in Health Assessment Questionnaire - Disability Index (HAQ-DI) Score at Week 12

    The HAQ-DI is a 20-question instrument that assesses the degree of difficulty a person has in accomplishing tasks in 8 domains (dressing and grooming, arising, eating, walking, hygiene, reaching, gripping, and errands/chores). Responses are scored on a 4-point Likert scale from 0, indicating no difficulty, to 3, indicating inability to perform a task in that area. The need for aids or help from another person will also be recorded. The HAQ-DI total score ranges from 0 to 3 with higher scores indicating greater dysfunction. Negative change from baseline indicates improvement (less disability).

    Measured: Baseline, Week 12

  10. Percentage of Participants Who Achieve SDAI ≤ 3.3 at Week 12

    SDAI is a composite measure that sums the TJC28, SJC28, SGA, PGA, and the hsCRP (in mg/dL). PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). Higher score indicates more severe disease activity status and total possible score is 0 to 86.

    Measured: Week 12

  11. Percentage of Participants Who Achieve CDAI ≤ 2.8 at Week 12

    CDAI is calculated using formula: CDAI = TJC based on 28 joints (TJC28) + SJC based on 28 joints (SJC28) + SGA + PGA. PGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no disease activity and maximum disease activity) and SGA assessed using VAS on a scale of 0-10 (0 and 10 indicating no arthritis and extremely active arthritis). CDAI can range from 0 to 76, with higher score indicating more severe disease activity status.

    Measured: Week 12

  12. Percentage of Participants Who Achieve DAS28(CRP) < 2.6 at Week 12

    The DAS28(CRP) is a measure of the participant's disease activity calculated using the tender joint counts (28 joints), swollen joint counts (28 joints), SGA, and hsCRP measurement for a total possible score of 1 to 9.4. Higher values indicate higher disease activity.

    Measured: Week 12

  13. Pharmacokinetic (PK) Parameter: AUCtau of GS-5718

    AUCtau is defined as the area under the curve from time zero to end of dosing interval.

    Measured: Up to Week 12

  14. PK Parameter: AUCtau of Methotrexate (MTX)

    AUCtau is defined as the area under the curve from time zero to end of dosing interval.

    Measured: Up to Week 8

  15. PK Parameter: Cmax of GS-5718

    Cmax is defined as the maximum observed concentration of drug.

    Measured: Up to Week 12

  16. PK Parameter: Cmax of MTX

    Cmax is defined as the maximum observed concentration of drug.

    Measured: Up to Week 8

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Dec 2021
  2. Study startJul 2022 (estimated)
  3. Primary completionFeb 2023 (estimated)
  4. Study completionMar 2023 (estimated)

Why it stopped: Sponsor decision to withdraw study.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05165771
Sponsor's protocol ID
GS-US-561-5898
Other IDs
2021-002664-52
Status last verified
May 2022
First submitted
8 Dec 2021
Last updated
18 May 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GS-5718 and Tofacitinib 5 mg in people with Rheumatoid Arthritis, run by Gilead Sciences.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 18 May 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in Disease Activity Score (DAS) Based on 28 Joints Using C-reactive Protein (CRP) DAS28 (CRP) at Week 12 (time frame: Baseline, Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2022.

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