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CompletedNCT02908100Updated May 8, 2024Results posted

A Study of the Safety and Efficacy of GDC-0853 in Participants With Moderate to Severe Active Systemic Lupus Erythematosus

A Phase 2 interventional study of GDC-0853 and Placebo in Systemic Lupus Erythematosus, sponsored by Genentech, Inc.. Completed at 70 sites in 12 countries. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-05-08.

Sponsored by Genentech, Inc. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
260
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a study to evaluate the safety and efficacy of GDC-0853 in combination with standard of care therapy in participants with moderate to severe active systemic lupus erythematosus (SLE).

02

Conditions studied

  • Systemic Lupus Erythematosus
03

In context

Lupus Erythematosus, Systemic

1,202 studies on the registry are indexed under Lupus Erythematosus, Systemic; 399 are open to participants now.

This study's enrollment of 260 is above the median of 50 across 867 interventional studies indexed under Lupus Erythematosus, Systemic.

Browse Lupus Erythematosus, Systemic studies →

Lead sponsor

Genentech, Inc. is the lead sponsor of 507 studies on the registry; 23 are open to participants now.

Of its 90 completed or terminated interventional studies of FDA-regulated products, 50 (56%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Fulfillment of SLE classification criteria according to either American College of Rheumatology (ACR) or Systemic Lupus International Collaborating Clinics (SLICC) criteria at any time prior to or at screening
  • At least one serologic marker of SLE at screening as follows: positive antinuclear antibody (ANA) test by immunofluorescent assay with titer >/= 1:80; or positive anti-double-stranded DNA (anti-dsDNA) antibodies; or positive anti-Smith antibody
  • At both screening and Day 1, moderate to severe active SLE, defined as meeting all of the following unless indicated otherwise: Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score ≥ 8 (at screening only) with clinical SLEDAI-2K score >/= 4.0 (at both screening and Day 1), Physician's Global Assessment >/= 1.0 (out of 3), and currently receiving at least one standard oral treatment for SLE
  • If on oral corticosteroids (OCS), the dose must be \</= 40 mg/day prednisone (or equivalent)
  • Stable doses of anti-malarial or immunosuppressive therapies
  • Participants must be willing to avoid pregnancy

Exclusion criteria

Exclusion Criteria:

  • Proteinuria > 3.5 g/24 h or equivalent using urine protein-to-creatinine ratio (uPCR) in a first morning void urine sample
  • Active proliferative lupus nephritis (as assessed by the investigator) or histological evidence of active Class III or Class IV lupus nephritis on renal biopsy performed in the 6 months prior to screening (or during the screening period)
  • History of having required hemodialysis or high dose corticosteroids (>100 mg/d) prednisone or equivalent) for the management of lupus renal disease within 90 days of Day 1
  • Neuropsychiatric or central nervous system lupus manifestations
  • Serum creatinine > 2.5 mg/dL, or estimated glomerular-filtration rate \< 30 milliliter per minute (mL/min) or on chronic renal replacement therapy
  • History of receiving a solid organ transplant
  • Evidence of active, latent, or inadequately treated infection with Mycobacterium tuberculosis (TB)
  • Significant and uncontrolled medical disease within the 12 weeks prior to screening in any organ system (e.g., cardiac, neurologic, pulmonary, renal, hepatic, endocrine, metabolic, gastrointestinal, or psychiatric) not related to SLE, which, in the investigator's or Sponsor's opinion, would preclude study participation
  • History of cancer, including hematological malignancy and solid tumors, within 10 years of screening
  • Need for systemic anticoagulation with warfarin, other oral or injectable anticoagulants, or anti-platelet agents
  • Evidence of chronic and/or active hepatitis B or C
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
260 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Participants received matching placebo to GDC-0853 orally starting on Day 1 and ending at Week 48, in combination with background standard of care therapy.

    Drug: Placebo

  • Experimental
    GDC-0853 (150mg) QD

    Participants received GDC-0853 (150mg) orally once daily (QD) starting on Day 1 and ending at Week 48, in combination with background standard of care therapy.

    Drug: GDC-0853

  • Experimental
    GDC-0853 (200mg) BID

    Participants received GDC-0853 (200mg) orally twice daily (BID) starting on Day 1 and ending at Week 48, in combination with background standard of care therapy.

    Drug: GDC-0853

Interventions

  • DrugGDC-0853

    Participants received GDC-0853 at dosages of 150 or 200mg as per the dosing schedules described above.

    Also known as: RO7010939

  • DrugPlacebo

    Participants received matching placebo to GDC-0853 at dosages of 150 and 200mg as per the dosing schedules described above.

06

What researchers measure

Primary outcomes

  1. Systemic Lupus Erythematosus Responder Index (SRI)-4 Response at Week 48

    The Systemic Lupus Erythematosus Responder Index (SRI)-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

    Time frame: Week 48

Secondary outcomes

  1. SRI-4 Response at Week 48 With a Sustained Reduction of Oral Corticosteroids (OCS) Dose to Less Than (<)10 Milligrams Per Day (mg/Day) and Less Than or Equal to (</=) Day 1 Dose During Week 36 Through Week 48

    The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. OCS tapering requires a sustained reduction of OCS from Week 36 through Week 48 \[less than 10 milligram per day (mg/day) and less or equal to the dose received on Day 1\].

    Time frame: Week 48

  2. SRI-4 Response at Week 24 With a Sustained Reduction of OCS Dose to < 10 mg/Day and </= Day 1 Dose During Week 12 Through Week 24

    The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. OCS tapering requires a sustained reduction of OCS from Week 12 through Week 24 \[less than 10 milligram per day (mg/day) and less or equal to the dose received on Day 1\].

    Time frame: Week 24

  3. SRI-4 Response at Week 24

    The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

    Time frame: Week 24

  4. SRI-4 Response at Week 48 in Patients With High vs. Low Plasmablast Signature Levels

    The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. The Plasmablast Signature (PB) is a Bruton's Tyrosine Kinase (BTK)-dependent blood RNA signature comprised of three genes (IgJ, MZB1 and TXNDC5). Q1/2/3/4 = Quartile 1/2/3/4.

    Time frame: Week 48

  5. SRI-4 Response With a Sustained Reduction of OCS Dose to ≤ 10 mg/Day and ≤ Day 1 Dose During Week 36 Through 48 in Patients With High vs. Low Plasmablast Signature Levels

    The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. The Plasmablast Signature (PB) is a Bruton's Tyrosine Kinase (BTK)-dependent blood RNA signature comprised of three genes (IgJ, MZB1 and TXNDC5). Q1/2/3/4 = Quartile 1/2/3/4.

    Time frame: Week 48

  6. SRI-6 Response at Week 24 and 48

    The Systemic Lupus Erythematosus Responder Index (SRI)-6 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥6 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

    Time frame: Week 24, 48

  7. BILAG-based Composite Lupus Assessment (BICLA) Response at Week 24 and 48

    The BICLA is a composite index that is defined as follows: \[1\] At least one gradation of improvement in baseline BILAG scores in all body systems with moderate or severe disease activity at entry (e.g., all A (severe disease) scores falling to B (moderate), C (mild), or D (no activity) and all B scores falling to C or D; \[2\] No new BILAG A or more than one new BILAG B scores; \[3\] No worsening of total SLEDAI-2K score from baseline; \[4\] No significant deterioration (=\<10%) in physician's global assessment and \[5\] No treatment failure (initiation of non-protocol treatment).

    Time frame: Week 24, 48

  8. Percentage of Participants With Adverse Events (AEs)

    An Adverse Event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

    Time frame: Baseline up to 8 weeks after the last dose of study drug (up to Week 56).

  9. Plasma Concentrations of Fenebrutinib at Specified Timepoints

    The PK analyses includes tabulation of plasma concentration data and summarisation of plasma concentrations by visits with participants grouped according to treatment received. Descriptive summary statistics for the Arithmetic Mean and Standard Deviation are presented below.

    Time frame: Baseline (Pre-dose), Week 24 (Pre-dose and Post-dose) and Week 48 (Pre-dose)

07

Results

Posted Jul 7, 2020

Participant flow

The study was conducted at 69 centers in 12 countries.

Participant flow — Overall Study
MilestonePlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Started868787
Completed636666
Not completed232121
Withdrew: Adverse event769
Withdrew: Death200
Withdrew: Lack of efficacy233
Withdrew: Lost to follow-up012
Withdrew: Non-compliance with study drug112
Withdrew: Non-compliance with contraceptive method100
Withdrew: Physician decision010
Withdrew: Pregnancy120
Withdrew: Withdrawal by subject875
Withdrew: Randomised in error100

Outcome measures

PrimarySystemic Lupus Erythematosus Responder Index (SRI)-4 Response at Week 48

The Systemic Lupus Erythematosus Responder Index (SRI)-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

Time frame:
Week 48
Reported as:
Number · Percentage of Participants
Systemic Lupus Erythematosus Responder Index (SRI)-4 Response at Week 48
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Systemic Lupus Erythematosus Responder Index (SRI)-4 Response at Week 4844.250.651.7
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.373 · Absolute difference: 6.4 · 95% CI -8.5 to 21.2
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.339 · Absolute difference: 7.5 · 95% CI -7.3 to 22.4
SecondarySRI-4 Response at Week 48 With a Sustained Reduction of Oral Corticosteroids (OCS) Dose to Less Than (<)10 Milligrams Per Day (mg/Day) and Less Than or Equal to (</=) Day 1 Dose During Week 36 Through Week 48

The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. OCS tapering requires a sustained reduction of OCS from Week 36 through Week 48 \[less than 10 milligram per day (mg/day) and less or equal to the dose received on Day 1\].

Time frame:
Week 48
Reported as:
Number · Percentage of Participants
SRI-4 Response at Week 48 With a Sustained Reduction of Oral Corticosteroids (OCS) Dose to Less Than (<)10 Milligrams Per Day (mg/Day) and Less Than or Equal to (</=) Day 1 Dose During Week 36 Through Week 48
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
SRI-4 Response at Week 48 With a Sustained Reduction of Oral Corticosteroids (OCS) Dose to Less Than (<)10 Milligrams Per Day (mg/Day) and Less Than or Equal to (</=) Day 1 Dose During Week 36 Through Week 4841.950.644.8
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.223 · Absolute difference: 8.7 · 95% CI -6.1 to 23.5
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.737 · Absolute difference: 3.0 · 95% CI -11.8 to 17.7
SecondarySRI-4 Response at Week 24 With a Sustained Reduction of OCS Dose to < 10 mg/Day and </= Day 1 Dose During Week 12 Through Week 24

The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. OCS tapering requires a sustained reduction of OCS from Week 12 through Week 24 \[less than 10 milligram per day (mg/day) and less or equal to the dose received on Day 1\].

Time frame:
Week 24
Reported as:
Number · Percentage of Participants
SRI-4 Response at Week 24 With a Sustained Reduction of OCS Dose to < 10 mg/Day and </= Day 1 Dose During Week 12 Through Week 24
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
SRI-4 Response at Week 24 With a Sustained Reduction of OCS Dose to < 10 mg/Day and </= Day 1 Dose During Week 12 Through Week 2443.047.147.1
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.614 · Absolute difference: 4.1 · 95% CI -10.7 to 18.9
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.607 · Absolute difference: 4.1 · 95% CI -10.7 to 18.9
SecondarySRI-4 Response at Week 24

The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

Time frame:
Week 24
Reported as:
Number · Percentage of Participants
SRI-4 Response at Week 24
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
SRI-4 Response at Week 2446.552.952.9
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.410 · Absolute difference: 6.4 · 95% CI -8.5 to 21.2
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.418 · Absolute difference: 6.4 · 95% CI -8.5 to 21.2
SecondarySRI-4 Response at Week 48 in Patients With High vs. Low Plasmablast Signature Levels

The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. The Plasmablast Signature (PB) is a Bruton's Tyrosine Kinase (BTK)-dependent blood RNA signature comprised of three genes (IgJ, MZB1 and TXNDC5). Q1/2/3/4 = Quartile 1/2/3/4.

Time frame:
Week 48
Reported as:
Number · Percentage of Participants
SRI-4 Response at Week 48 in Patients With High vs. Low Plasmablast Signature Levels
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Plasmablast Signature Level Q137.552.445.0
Plasmablast Signature Level Q254.554.263.2
Plasmablast Signature Level Q336.852.452.0
Plasmablast Signature Level Q450.042.947.8
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.378 · Absolute difference: 14.9 · 95% CI -14 to 43.7
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.732 · Absolute difference: 7.5 · 95% CI -21.7 to 36.7
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.500 · Absolute difference: -0.4 · 95% CI -29.2 to 28.4
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.234 · Absolute difference: 8.6 · 95% CI -21.4 to 38.7
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.364 · Absolute difference: 15.5 · 95% CI -14.9 to 46
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.134 · Absolute difference: 15.2 · 95% CI -14.1 to 44.4
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.830 · Absolute difference: -7.1 · 95% CI -37.6 to 23.3
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.963 · Absolute difference: -2.2 · 95% CI -32.1 to 27.8
SecondarySRI-4 Response With a Sustained Reduction of OCS Dose to ≤ 10 mg/Day and ≤ Day 1 Dose During Week 36 Through 48 in Patients With High vs. Low Plasmablast Signature Levels

The SRI-4 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥4 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity. The Plasmablast Signature (PB) is a Bruton's Tyrosine Kinase (BTK)-dependent blood RNA signature comprised of three genes (IgJ, MZB1 and TXNDC5). Q1/2/3/4 = Quartile 1/2/3/4.

Time frame:
Week 48
Reported as:
Number · Percentage of Participants
SRI-4 Response With a Sustained Reduction of OCS Dose to ≤ 10 mg/Day and ≤ Day 1 Dose During Week 36 Through 48 in Patients With High vs. Low Plasmablast Signature Levels
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Plasmablast Signature Level Q133.352.440.0
Plasmablast Signature Level Q254.554.257.9
Plasmablast Signature Level Q336.852.444.0
Plasmablast Signature Level Q445.042.939.1
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.189 · Absolute difference: 19.0 · 95% CI -9.4 to 47.5
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.909 · Absolute difference: 6.7 · 95% CI -21.9 to 35.2
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.500 · Absolute difference: -0.4 · 95% CI -29.2 to 28.4
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.234 · Absolute difference: 3.3 · 95% CI -27.1 to 33.8
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.364 · Absolute difference: 15.5 · 95% CI -14.9 to 46
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.310 · Absolute difference: 7.2 · 95% CI -22 to 36.3
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.922 · Absolute difference: -2.1 · 95% CI -32.5 to 28.2
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.701 · Absolute difference: -5.9 · 95% CI -35.4 to 23.7
SecondarySRI-6 Response at Week 24 and 48

The Systemic Lupus Erythematosus Responder Index (SRI)-6 measures reduction in SLE disease activity and is a composite measure that includes the SLE Disease Activity Index (SLEDAI-2K), British Isles Lupus Activity Group (BILAG) 2004 and Physician Global Assessment. It is defined as: 1) Reduction of ≥6 points from baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score; 2) no new British Isles Lupus Assessment Group (BILAG) A or no more than 1 new BILAG B disease activity scores and 3) no worsening (defined as an increase of ≥0.3 points \[10 mm\] from baseline) in the Physician's Global Assessment of Disease Activity. The score range is from 0 to 100, with higher scores indicating greater disease activity.

Time frame:
Week 24, 48
Reported as:
Number · Percentage of Participants
SRI-6 Response at Week 24 and 48
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Week 2431.434.533.3
Week 4827.939.135.6
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.692 · Absolute difference: 3.1 · 95% CI -10.9 to 17.1
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.871 · Absolute difference: 1.9 · 95% CI -12 to 15.9
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.105 · Absolute difference: 11.2 · 95% CI -2.8 to 25.1
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.286 · Absolute difference: 7.7 · 95% CI -6.1 to 21.6
SecondaryBILAG-based Composite Lupus Assessment (BICLA) Response at Week 24 and 48

The BICLA is a composite index that is defined as follows: \[1\] At least one gradation of improvement in baseline BILAG scores in all body systems with moderate or severe disease activity at entry (e.g., all A (severe disease) scores falling to B (moderate), C (mild), or D (no activity) and all B scores falling to C or D; \[2\] No new BILAG A or more than one new BILAG B scores; \[3\] No worsening of total SLEDAI-2K score from baseline; \[4\] No significant deterioration (=\<10%) in physician's global assessment and \[5\] No treatment failure (initiation of non-protocol treatment).

Time frame:
Week 24, 48
Reported as:
Number · Percentage of Participants
BILAG-based Composite Lupus Assessment (BICLA) Response at Week 24 and 48
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Week 2447.545.944.6
Week 4841.252.942.2
Statistical analysis
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.936 · Absolute difference: -1.6 · 95% CI -16.8 to 13.6
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.683 · Absolute difference: -2.9 · 95% CI -18.2 to 12.4
  • Placebo vs GDC-0853 (150mg) QD · Cochran-Mantel-Haenszel · p = 0.086 · Absolute difference: 11.7 · 95% CI -3.4 to 26.8
  • Placebo vs GDC-0853 (200mg) BID · Cochran-Mantel-Haenszel · p = 0.879 · Absolute difference: 0.9 · 95% CI -14.2 to 16.1
SecondaryPercentage of Participants With Adverse Events (AEs)

An Adverse Event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Time frame:
Baseline up to 8 weeks after the last dose of study drug (up to Week 56).
Reported as:
Number · Percentage of Participants
Percentage of Participants With Adverse Events (AEs)
Percentage of ParticipantsPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Percentage of Participants With Adverse Events (AEs)76.288.578.4
SecondaryPlasma Concentrations of Fenebrutinib at Specified Timepoints

The PK analyses includes tabulation of plasma concentration data and summarisation of plasma concentrations by visits with participants grouped according to treatment received. Descriptive summary statistics for the Arithmetic Mean and Standard Deviation are presented below.

Time frame:
Baseline (Pre-dose), Week 24 (Pre-dose and Post-dose) and Week 48 (Pre-dose)
Reported as:
Mean · ng/mL
Plasma Concentrations of Fenebrutinib at Specified Timepoints
ng/mLGDC-0853 (150mg) QDGDC-0853 (200mg) BID
Week 0 (Pre-dose)NA ± NANA ± NA
Week 24 (Pre-dose)41.9 ± 62.4180 ± 121
Week 24 (2hr Post-dose)331 ± 226612 ± 353
Week 24 (4-6hr Post-dose)215 ± 131414 ± 187
Week 24 (8-10hr Post-dose)120 ± 111233 ± 145
Week 48 (Pre-dose)25.5 ± 28.1137 ± 133

Adverse events

Collected over Baseline up to 8 weeks after the last dose of study drug (up to Week 56).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo2/84 (2.4%)9/84 (10.7%)42/84 (50%)
GDC-0853 (150mg) QD1/87 (1.1%)4/87 (4.6%)54/87 (62.1%)
GDC-0853 (200mg) BID0/88 (0%)12/88 (13.6%)51/88 (58%)
Most frequent serious events
Showing 10 of 35
Most frequent serious events
EventPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
SYSTEMIC LUPUS ERYTHEMATOSUSMusculoskeletal and connective tissue disorders2/841/872/88
CONGESTIVE CARDIOMYOPATHYCardiac disorders1/840/870/88
MULTIPLE ORGAN DYSFUNCTION SYNDROMEGeneral disorders1/840/870/88
EPSTEIN-BARR VIRUS INFECTIONInfections and infestations1/840/870/88
GASTROENTERITIS BACTERIALInfections and infestations1/840/870/88
INFECTED SKIN ULCERInfections and infestations1/840/870/88
PNEUMONIAInfections and infestations1/840/870/88
PYELONEPHRITISInfections and infestations1/840/871/88
SEPTIC SHOCKInfections and infestations1/840/870/88
URINARY TRACT INFECTIONInfections and infestations1/840/871/88
Most frequent other events
Showing 10 of 16
Most frequent other events
EventPlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BID
URINARY TRACT INFECTIONInfections and infestations9/8417/8711/88
LYMPHOPENIABlood and lymphatic system disorders6/842/8710/88
HEADACHENervous system disorders9/843/873/88
UPPER RESPIRATORY TRACT INFECTIONInfections and infestations5/849/873/88
NASOPHARYNGITISInfections and infestations5/848/876/88
BACK PAINMusculoskeletal and connective tissue disorders2/848/874/88
NAUSEAGastrointestinal disorders7/844/877/88
BRONCHITISInfections and infestations6/846/877/88
DIARRHOEAGastrointestinal disorders6/845/875/88
NEUTROPENIABlood and lymphatic system disorders4/845/876/88

Baseline characteristics

Age, Continuous
Age, Continuous(Years)PlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BIDTotal
Mean40.2 ± 11.543.3 ± 12.440.4 ± 10.641.3 ± 11.6
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BIDTotal
Female858284251
Male1539
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)PlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BIDTotal
Hispanic or Latino546161176
Not Hispanic or Latino32252683
Not Stated0101
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)PlaceboGDC-0853 (150mg) QDGDC-0853 (200mg) BIDTotal
American Indian or Alaska native1181736
Asian71210
Black or African American11151339
Multiple1135
White566252170
08

Study locations

70 sites
  • University of Alabama at Birmingham
    Birmingham, Alabama 35294, United States
  • Valerius Medical Group & Research Ctr of Greater Long Beach
    Los Alamitos, California 90720, United States
  • RASF-Clinical Research Center
    Boca Raton, Florida 33486, United States
  • Bay Area Arthritis and Osteoporosis
    Brandon, Florida 33511, United States
  • Omega Research Consultants
    Orlando, Florida 32810, United States
  • Clinical Research of West Florida
    Tampa, Florida 33603, United States
  • Institute of Arthritis Research
    Idaho Falls, Idaho 83404, United States
  • Via Christi Research, a division of Via Christi Hospitals Wichita, Inc.
    Wichita, Kansas 67208, United States
  • Ochsner Clinic Foundation
    Baton Rouge, Louisiana 70809, United States
  • The Arthritis & Diabetes Clinic, Inc.; Research
    Monroe, Louisiana 71203, United States
  • Albuquerque Clinical Trials
    Albuquerque, New Mexico 87102, United States
  • Saint Lawrence Health System
    Canton, New York 13617, United States
  • New York University School of Medicine
    New York, New York 10016, United States
  • Shanahan Rheumatology & Immunology, PLLC
    Raleigh, North Carolina 27617, United States
  • Ohio State University Clinical Trials Management Office
    Columbus, Ohio 43210, United States
  • Tekton Research Inc
    Austin, Texas 78745, United States
  • Accurate Clinical Research
    Houston, Texas 77058-3675, United States
  • Accurate Clinical Research
    Houston, Texas 77089, United States
  • Arthritis Clinic Of Central Texas
    San Marcos, Texas 78666, United States
  • Organizacion Medica de Investigacion
    Buenos Aires, C1015ABO, Argentina
  • APRILLUS
    Buenos Aires, C1194AAO, Argentina
  • Hospital Italiano de La Plata
    La Plata, 1900, Argentina
  • CER San Juan Centro Polivalente de Asistencia e Investigacion Clinica
    San Juan, 5400, Argentina
  • Centro Medico Privado de Reumatologia; Reumathology
    San Miguel, T4000AXL, Argentina
  • CEDOES - Diagnóstico e Pesquisa
    Vitoria, ES 29055-450, Brazil
  • CIP - Centro Internacional de Pesquisa X; Pesquisa Clinica
    Goiânia, GO 74110-120, Brazil
  • Hospital das Clinicas - UFMG
    Belo Horizonte, MG 31270-901, Brazil
  • CMiP - Centro Mineiro de Pesquisa*X*
    Juiz de Fora, MG 36010-570, Brazil
  • Edumed - Educação e Saúde SA
    Curitiba, PR 80440-080, Brazil
  • Hospital Moinhos de Vento
    Porto Alegre, RS 90035-001, Brazil
  • Centro de Pesquisas em Diabetes - CPD
    Porto Alegre, RS 90035-170, Brazil
  • Clinica de Neoplasias Litoral
    Itajai, SC 88301-220, Brazil
  • Faculdade de Medicina do ABC - FMABC
    Santo Andre, SP 09060-650, Brazil
  • Hospital Estadual Mario Covas
    Santo Andre, SP 09190-610, Brazil
  • Hospital Abreu Sodré - AACD
    Sao Paulo, SP 04023-000, Brazil
  • MHAT Plovdiv
    Plovdiv, 4003, Bulgaria
  • Medical Center "Teodora", EOOD
    Ruse, 7000, Bulgaria
  • Medical Center Excelsior OOD
    Sofia, 1000, Bulgaria
  • UMHAT "Sv. Ivan Rilski", EAD
    Sofia, 1431, Bulgaria
  • MC "Synexus - Sofia", EOOD
    Sofia, 1784, Bulgaria
  • Medical Center "Nov Rehabilitatsionen Tsentar", EOOD
    Stara Zagora, 6000, Bulgaria
  • CTR Estudios SPA
    Providencia, 7500571, Chile
  • Dermacross
    Santiago, 66901, Chile
  • Centro de Estudios Reumatológicos
    Santiago, 7501126, Chile
  • SOMEAL
    Santiago, 7510186, Chile
  • Biomedica
    Santiago, Chile
  • CEQUIN - Fundación Cardiomet Eje Cafetero
    Armenia, 00000, Colombia
  • Centro Integral de Reumatologia del Caribe SAS CIRCARIBE SAS
    Barranquilla, 00000, Colombia
  • Centro de Reumatologia y Ortopedia
    Barranquilla, 80020, Colombia
  • Medicity S.A.S.
    Bucaramanga, 680003, Colombia
  • Servimed S.A.S.
    Bucaramanga, 680003, Colombia
  • Hospital Pablo Tobon Uribe
    Medellin, 050034, Colombia
  • Charite Research Organisation GmbH; Phase - I Unit of Hematology and Oncology
    Berlin, 12200, Germany
  • Konkuk University Medical Center
    Seoul, 05030, Korea, Republic of
  • The Catholic University of Korea St.Mary's Hospital
    Seoul, 150-713, Korea, Republic of
  • Centro de Investigacion Alberto Bazzoni S.A. de C.V.
    Torreon, Coahuila 27000, Mexico
  • Unidad de Atencion Medica e Investigacion en Salud S.C.
    Mérida, Yucatan 97000, Mexico
  • Consultorio Particular del Dr. Miguel Cortes Hernandez
    Cuernavaca, 62290, Mexico
  • Hospital Angeles Lindavista
    Mexico, 07760, Mexico
  • Hospital Universitario de Saltillo
    Saltillo, 25000, Mexico
  • Hospital Central Dr Ignacio Morones Prieto
    San Luis Potosi, 78240, Mexico
  • Complejo Hospitalario Universitario A Coruña
    A Coruña, LA Coruña 15006, Spain
  • Hospital Universitari Vall d'Hebron
    Barcelona, 08035, Spain
  • Hospital General Universitario Gregorio Marañon
    Madrid, 28007, Spain
  • Hospital Clinico Universitario de Valladolid; Servicio de Reumatologia
    Valladolid, 47005, Spain
  • Kaohsiung Chang Gung Memorial Hospital
    Kaohsiung City, 00833, Taiwan
  • National Taiwan University Hospital
    Taipei, 10002, Taiwan
  • Chang Gung Memorial Hospital - Linkou
    Taoyuan, 333, Taiwan
  • University College London Hospital
    London, NW1 - 2PG, United Kingdom
  • Guy's Hospital; Louise Coote Lupus Unit
    London, SE1 9RT, United Kingdom
09

References and documents

Publications

  • Isenberg D, Furie R, Jones NS, Guibord P, Galanter J, Lee C, McGregor A, Toth B, Rae J, Hwang O, Desai R, Lokku A, Ramamoorthi N, Hackney JA, Miranda P, de Souza VA, Jaller-Raad JJ, Maura Fernandes A, Garcia Salinas R, Chinn LW, Townsend MJ, Morimoto AM, Tuckwell K. Efficacy, Safety, and Pharmacodynamic Effects of the Bruton's Tyrosine Kinase Inhibitor Fenebrutinib (GDC-0853) in Systemic Lupus Erythematosus: Results of a Phase II, Randomized, Double-Blind, Placebo-Controlled Trial. Arthritis Rheumatol. 2021 Oct;73(10):1835-1846. doi: 10.1002/art.41811. Epub 2021 Aug 24. PubMed 34042314 ↗

Study documents

  • Protocol and statistical analysis plan · Feb 9, 2018

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 8, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02908100
Lead sponsor
Genentech, Inc.
Responsible party
Sponsor
First posted
Sep 20, 2016
Start date
Jan 19, 2017
Primary completion
May 28, 2019
Completion
Jul 16, 2019
Results posted
Jul 7, 2020
Last update
May 8, 2024

Study contacts

Clinical Trials
study director · Hoffmann-La Roche

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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