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Active, not recruitingNCT05007782Updated Sep 17, 2026

Study of Denikitug (GS-1811) Given Alone or With Zimberelimab in Adults With Advanced Solid Tumors

A Phase 1 interventional study of Denikitug and Zimberelimab in Advanced Solid Tumor, sponsored by Gilead Sciences. Active, not recruiting at 25 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-17.

Sponsored by Gilead Sciences · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
304
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

This is a first-in-human (FIH) study to evaluate the safety and tolerability and to determine the maximum tolerated dose (MTD) and/or the recommended Phase 2 dose (RP2D) of denikitug (also known as GS-1811) as monotherapy and in combination with zimberelimab in participants with advanced solid tumors.

This study will be conducted in 6 parts (Parts A, B, and E: monotherapy, Parts C and D: combination therapy, and Part F for both monotherapy and combination therapy) in participants with advanced solid tumors who have received, been intolerant to, or been ineligible for all treatments known to confer clinical benefit or in participants with select solid tumors.

Read the detailed description

Part D allocation for 1 cohort will be randomized.

02

Conditions studied

  • Advanced Solid Tumor
03

In context

Lead sponsor

Gilead Sciences is the lead sponsor of 680 studies on the registry; 24 are open to participants now.

Of its 259 completed or terminated interventional studies of FDA-regulated products, 249 (96%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Disease:

    • Part A: Individuals with histologically or cytologically confirmed advanced solid tumors who have received, been intolerant to, or been ineligible for all treatment known to confer clinical benefit.
    • Part B: Individuals with histologically or cytologically confirmed select indications who have received, been intolerant to, or been ineligible for all treatment known to confer clinical benefit.
    • Part C: Individuals with histologically or cytologically confirmed advanced solid tumors who have received, been intolerant to, or been ineligible for all treatments known to confer clinical benefit or whose disease is indicated for anti- programmed cell death protein 1 or programmed cell death ligand 1 (PD-[L]1) monoclonal antibody monotherapy.
    • Part D: Individuals with pathologically confirmed select advanced solid tumors.
    • Part E: Individuals with pathologically confirmed select advanced solid tumors. Participants must have received, have been intolerant to, or have been ineligible for all treatment known to confer clinical benefit.
    • Part F: Individuals with pathologically-confirmed select advanced solid tumors. Participants must have received, have been intolerant to, or have been ineligible for all treatments known to confer clinical benefit; or, for participants who will undergo combination therapy, have disease which is indicated for anti-PD-(L)1 mAb monotherapy.
  • Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
  • Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2 for individuals in Parts A, B, and C, and 0 or 1 for individuals in Parts D, E, and F.
  • Adequate organ function.
  • Male individuals and female individuals of childbearing potential who engage in heterosexual intercourse must agree to use methods of contraception.
  • Tissue requirement:

    • Parts A, C, D, E and F: Must provide pre-treatment adequate tumor tissue sample prior to enrollment.
    • Part B and select participants in Parts C and F: Must have fresh pre-treatment and on-treatment biopsies for biomarker analysis.

Key Exclusion Criteria:

  • Concurrent anticancer treatment.
  • Any anti-cancer therapy, whether investigational or approved, within protocol specified time prior to initiation of study including: immunotherapy or biologic therapy (\< 28 days), chemotherapy (\< 21 days), targeted small molecule therapy (\< 14 days), hormonal therapy or other adjunctive therapy (\< 14 days) or radiotherapy (\< 21 days).
  • Any prior CCR8 directed therapy.
  • Prior allogeneic tissue/solid organ transplantation, including allogeneic stem cell transplantation. Exception: prior corneal transplant without requirement for systemic immunosuppressive agents is allowed.
  • Concurrent active malignancy other than nonmelanoma skin cancer, curatively resected carcinoma in situ, localized prostate cancer, or superficial bladder cancer after undergoing potentially curative therapy with no evidence of disease. Individuals with other previous malignancies are eligible if disease-free for > 2 years.
  • History of intolerance, hypersensitivity, or treatment discontinuation due to severe immune-related adverse events (irAEs) on prior immunotherapy.
  • History of autoimmune disease or active autoimmune disease requiring systemic treatment within 2 years.
  • History of pneumonitis, interstitial lung disease, or severe radiation pneumonitis (excluding localized radiation pneumonitis).
  • Active and clinically relevant bacterial, fungal, or viral infection that is not controlled or requires IV antibiotics.
  • Active hepatitis B virus (HBV) and/or hepatitis C virus (HCV), and/or human immunodeficiency virus (HIV).
  • Positive serum pregnancy test or breastfeeding female.
  • Live vaccines within 30 days prior to first dose.
  • Significant cardiovascular disease.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
304 participants (actual)

Study arms

  • Experimental
    Part A - Denikitug Dose Escalation

    Drug: Denikitug

  • Experimental
    Part B - Mandatory Paired Tumor Biopsy

    Drug: Denikitug

  • Experimental
    Part C: Denikitug + Zimberelimab Dose Escalation

    Drug: Denikitug · Drug: Zimberelimab

  • Experimental
    Part D: Denikitug + Zimberelimab Dose Expansion

    Drug: Denikitug · Drug: Zimberelimab

  • Experimental
    Part E: Denikitug Monotherapy Dose Expansion

    Drug: Denikitug

  • Experimental
    Part F: Denikitug Monotherapy and In Combination With Zimberelimab In Select Dose and Schedule

    Drug: Denikitug · Drug: Zimberelimab

Interventions

  • DrugDenikitug

    Administered Intravenously

    Also known as: GS-1811

  • DrugZimberelimab

    Administered Intravenously

06

What researchers measure

Primary outcomes

  1. Percentage of Participants Experiencing Dose Limiting Toxicities (DLTs) in Part A and C

    Time frame: Day 1 Through Day 21

  2. Percentage of Participants Experiencing Adverse Events (AEs) According to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0

    Time frame: First dose to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  3. Percentage of Participants Experiencing Laboratory Abnormalities According to the NCI CTCAE v5.0

    Time frame: First dose to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

Secondary outcomes

  1. Pharmacokinetic (PK) Parameter: Maximum Observed Concentration (Cmax) for Denikitug

    Time frame: Day 1 Up to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  2. PK Parameter: Minimum Observed Concentration (Cmin) for Denikitug

    Time frame: Day 1 Up to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  3. PK Parameter: Time of Maximum Observed Concentration (Tmax) for Denikitug

    Time frame: Day 1 Up to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  4. PK Parameter: Area Under the Concentration-time Curve (AUC) for Denikitug

    Time frame: Day 1 Up to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  5. Percentage of Participants who Developed Antidrug Antibody (ADA) Against Denikitug

    Time frame: Day 1 Up to End of Treatment (up to 12 months for monotherapy and 24 months for combination therapy) plus 90 days

  6. Objective response rate (ORR) in Part D

    Objective response rate is defined as the proportion of participants who achieve complete response (CR) or partial response (PR) as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1

    Time frame: Day 1 Up to End of Treatment (24 months)

  7. Disease control rate (DCR)

    Disease control rate is defined as the proportion of participants who achieve CR, PR, or stable disease (SD) as assessed by RECIST Version 1.1

    Time frame: Day 1 Up to End of Treatment (24 months)

  8. Time to response (TTR)

    Time to response is defined as the time from the first dose of Denikitug in combination with Zimberelimab to the first documentation of CR or PR that is subsequently confirmed

    Time frame: Day 1 Up to End of Treatment (24 months)

  9. Duration of response (DOR)

    Duration of response is defined as the time from the first documentation of CR or PR to the earlier of the first documentation of definitive progressive disease (PD) or death from any cause, if applicable.

    Time frame: Day 1 Up to End of Treatment (24 months)

  10. Progression-free survival (PFS)

    Progression-free survival is defined as the time from the first dose of Denikitug in combination with Zimberelimab to the earlier of the first documentation of definitive PD or death from any cause

    Time frame: Day 1 Up to End of Treatment (24 months)

07

Study locations

25 sites
  • University of California San Diego
    La Jolla, California 92093, United States
  • Stanford Cancer Center
    Palo Alto, California 94305, United States
  • Smilow Cancer Center
    New Haven, Connecticut 06510, United States
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02215, United States
  • Tennessee Oncology, PLLC
    Nashville, Tennessee 37203, United States
  • University of Texas Southwestern Medical Center
    Dallas, Texas 39090, United States
  • Sarah Cannon Research Institute at Mary Crowley
    Dallas, Texas 75230, United States
  • MD Anderson Cancer Center
    Houston, Texas 77030, United States
  • NEXT Oncology
    San Antonio, Texas 78229, United States
  • University of Wisconsin Clinical Sciences Center
    Madison, Wisconsin 53705, United States
  • Chris O'Brien Lifehouse
    Camperdown, New South Wales 2050, Australia
  • Monash Medical Centre
    Clayton, Victoria 3168, Australia
  • Peter MacCallum Cancer Centre
    Melbourne, Victoria 3000, Australia
  • University Health Network, Princess Margaret Cancer Centre
    Toronto, M5G 2M9, Canada
  • Hospital Universitari Vall d´Hebrón
    Barcelona, 08035, Spain
  • MD Anderson Cancer Center
    Madrid, 28033, Spain
  • Hospital Universitario 12 de Octubre
    Madrid, 28041, Spain
  • Hospital Universitario Quironsalud Madrid
    Madrid, 28223, Spain
  • Clinica Universidad de Navarra
    Pamplona, 31008, Spain
  • Changhua Christian Hospital
    Changhua, 500, Taiwan
  • Chi Mei Hospital, Liouying
    Tainan, 73657, Taiwan
  • National Taiwan University Cancer Center (NTUCC)
    Taipei, 100229, Taiwan
  • National Taiwan University Hospital
    Taipei, 100, Taiwan
  • Taipei Veterans General Hospital
    Taipei, 11217, Taiwan
  • Chang Gung Medical Foundation Linkou Chang Gung Memorial Hospital
    Taoyuan City, 33308, Taiwan
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References and documents

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05007782
Lead sponsor
Gilead Sciences
Responsible party
Sponsor
First posted
Aug 16, 2021
Start date
Aug 18, 2021
Primary completion
Dec 2028 (estimated)
Completion
Dec 2028 (estimated)
Last update
Sep 17, 2026

Study contacts

Gilead Study Director
study director · Gilead Sciences

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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