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Advanced CancerPhase 1NCT05025085

A Study Investigating AGEN1777 in Participants With Advanced Solid Tumors

A Phase 1 study testing AGEN1777 and a PD-1 inhibitor in people with Advanced Cancer, run by Agenus Inc. at 11 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is a multicenter, Phase 1 study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics of AGEN1777 as a single agent and when used in combination with a PD-1 inhibitor in participants with advanced, metastatic solid tumors. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Cancer
What is being tested?
AGEN1777 and a PD-1 inhibitor
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
11 sitesUnited States
Study dates
4 Oct 2021to 1 Apr 2024
Phase
Phase 1
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically or cytologically confirmed diagnosis of metastatic or locally advanced solid tumor for which no acceptable standard therapy available or progressed on or after standard therapies.
  • Measurable disease on baseline imaging based on Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1).
  • Life expectancy of at least 3 months and an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Who cannot join

  • Active infection requiring treatment.
  • Lack of recovery for participants who had major surgical procedure within 4 weeks prior to first dose of protocol therapy.
  • Clinically significant cardiovascular disease: cerebral vascular accident/stroke or myocardial infarction within 6 months of enrollment, unstable angina, congestive heart failure (New York Heart Association class ≥ II), or serious uncontrolled cardiac arrhythmia requiring medication.
  • Corrected QT interval (QTc) (corrected for heart rate using Fridericia's formula prolongation) >480 msec at screening except for right bundle branch block.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Local Institution - 072

    Cincinnati, Ohio, 45267-0558

  • University of Cincinnati Cancer Center

    Cincinnati, Ohio, 45267

  • Local Institution - 164

    Dallas, Texas, 75230

  • Mary Crowley Cancer Research

    Dallas, Texas, 75251

  • Local Institution - 165

    Grand Rapids, Michigan, 49546

  • START Midwest

    Grand Rapids, Michigan, 49546

  • MD Anderson Cancer Center Thoracic-Head & Neck Med Onc

    Houston, Texas, 77030

  • Providence Cancer Institute

    Portland, Oregon, 97213

  • Lifespan Cancer Institute

    Providence, Rhode Island, 02903

  • Local Institution - 0001

    Providence, Rhode Island, 02903

  • Local Institution - 024

    Southfield, Michigan, 48075

Other trials in United States

About this study

Official title: A Phase 1 Study Investigating AGEN1777 as a Single-Agent and in Combination With a PD-1 Inhibitor in Patients With Advanced Solid Tumors

This study is a multicenter, Phase 1 study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics of AGEN1777 as a single agent and when used in combination with a PD-1 inhibitor in participants with advanced, metastatic solid tumors.

Conditions
Advanced Cancer
Being tested
AGEN1777, a PD-1 inhibitor
Keywords
Solid Tumors, Dose Escalation, Monotherapy, Combination Therapy, Anti-PD-1, Undisclosed Target

What participants receive

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

  • AGEN1777Drug

    An immunoglobulin gamma (IgG1) antibody

  • a PD-1 inhibitorDrug

    Anti-programmed cell death protein 1 (Anti-PD-1) antibody monoclonal antibody

Study groups in NCT05025085
Study groupRoleWhat they receive
Monotherapy with AGEN1777Experimental3+3 Dose escalation of AGEN1777 will be administered by Intravenous (IV) infusion every 3 weeks (each cycle is 21 days [3 weeks]).
Receives: Drug: AGEN1777
AGEN1777 in combination with a PD-1 inhibitorExperimental3+3 Dose escalation of AGEN1777 in combination with a PD-1 inhibitor will be administered by IV infusion with specified dose on specified days.
Receives: Drug: AGEN1777; Drug: a PD-1 inhibitor

What is being measured

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

  1. Number of Participants with Dose-Limiting Toxicities (DLT) of AGEN1777 as a Single-Agent and in Combination with a PD-1 inhibitor

    Measured: Day 1 through Day 21

  2. Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

    Measured: Up to 2 years and 90 days

Secondary outcomes (7)
  1. Maximum Observed Concentration at Steady State (Cmax-ss) of Serum AGEN1777 and a PD-1 inhibitor

    Measured: Day 1 Up to End of Treatment (up to 2 years)

  2. Serum AGEN1777 Anti-Drug Antibody (ADA) Determination

    Measured: Day 1 of Cycle 1 (Cycle = 21 days) through Day 1 of Cycle 5. Incidence of ADA

  3. Serum a PD-1 inhibitor Anti-Drug Antibody (ADA) Determination

    Measured: Day 1 Up to End of Treatment (up to 2 years)

  4. Complete Response (CR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) Based on Investigator's assessment

    Measured: From Day 1 of Cycle 1 (each cycle is 21 days [3 weeks]) until every 9 weeks (±7 days) for 12 months, and every 12 weeks (±7 days) thereafter up to 2 years or until progressive disease or unacceptable toxicity

  5. Partial Response (PR) per RECIST v1.1 Based on Investigator's Assessment

    Measured: From Day 1 of Cycle 1 (each cycle is 21 days [3 weeks]) until every 9 weeks (±7 days) for 12 months, and every 12 weeks (±7 days) thereafter up to 2 years or until progressive disease or unacceptable toxicity

  6. Duration of Response (DOR) per RECIST v1.1 Based on Investigator's Assessment

    Measured: From Day 1 of Cycle 1 (each cycle is 21 days [3 weeks]) until every 9 weeks (±7 days) for 12 months, and every 12 weeks (±7 days) thereafter up to 2 years or until progressive disease or unacceptable toxicity.

  7. Stable Disease (SD) per RECIST v1.1 Based on Investigator's Assessment

    Measured: From Day 1 of Cycle 1 (each cycle is 21 days [3 weeks]) until every 9 weeks (±7 days) for 12 months, and every 12 weeks (±7 days) thereafter up to 2 years or until progressive disease or unacceptable toxicity.

Timeline

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

  1. First posted27 Aug 2021
  2. Study start4 Oct 2021
  3. Primary completion11 Jul 2023
  4. Study completion1 Apr 2024

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Model description
Dose escalation
Masking
None (open label)
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05025085
Sponsor's protocol ID
CA115-P01
Other IDs
C-1400-01
Status last verified
Oct 2025
First submitted
10 Aug 2021
Last updated
15 Oct 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing AGEN1777 and a PD-1 inhibitor in people with Advanced Cancer, run by Agenus Inc. at 11 sites in United States.

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 3 inclusion and 4 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: finished, as of the sponsor's last update on 15 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Number of Participants with Dose-Limiting Toxicities (DLT) of AGEN1777 as a Single-Agent and in Combination with a PD-1 inhibitor (time frame: Day 1 through Day 21). The study lists 2 primary outcomes in all. 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 15 Oct 2025.

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