ClinicalTrials.gg
RecruitingNCT07085091Updated Sep 30, 2026

A First in Human Study of ALX2004 With Advanced or Metastatic Selected Solid Tumors

A Phase 1 interventional study of ALX2004 and ALX2004 in NSCLC (Advanced Non-small Cell Lung Cancer), HNSCC and CRC (Colorectal Cancer), sponsored by ALX Oncology Inc.. Recruiting at 12 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-30.

Sponsored by ALX Oncology Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 2 months later.
Updated Sep 30, 2026Site recruiting status changed4 sites addedGo to Updates ↓

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Phase 1
Study type
Interventional
Enrollment
170
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 3,366 studies in Carcinoma, Non-Small-Cell Lung with a site in United States — 518 open to participants now, 892 under way, 142 of them phase 3. Carcinoma, Non-Small-Cell Lung · United States.

Planned enrollment
714th of 2,993
170 · median 56
Started
2025
with 148 others
Phase 1
926 of 3,366
133 open now
Primary completion
2027-06
later than 401 of 890 live
Registered
3,189th of 3,366
by date

Among the 3,366 studies in Carcinoma, Non-Small-Cell Lung with a site in United States, this one is the 714th largest by planned enrollment of the 2,993 interventional ones that give a count, is one of 149 that started in 2025, is one of 926 in phase 1, reaches primary completion later than 401 of the 890 other live ones, and was the 3,189th registered.

Carcinoma, Non-Small-Cell Lung

7,624 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,837 are open to participants now.

Browse Carcinoma, Non-Small-Cell Lung studies →

Open to participants now

518 of the 3,366 studies in Carcinoma, Non-Small-Cell Lung with a site in United States are open now. Recruiting first, the newest first:

513 more — sign in →

All 518 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 1,326 Carcinoma, Non-Small-Cell Lung studies recruiting now, 988 (75%) set no upper age limit and 225 (17%) stop at 75 or younger; 34 take children under 18; 40 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Get alerts for this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 3,366 studies in Carcinoma, Non-Small-Cell Lung with a site in United States, or all of them as a file.
02

Study summary

A Phase 1, First in Human, Open-Label Multicenter Study to Evaluate ALX2004, an Antibody Drug Conjugate Targeting EGFR in Participants with Advanced or Metastatic Select Solid Tumors

Read the detailed description

This study consists of Phase 1a Dose finding, comprising of Dose Escalation portion followed by Dose Exploration, and a Phase 1b Dose Expansion. The study will enroll previously treated advanced or metastatic non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), esophageal squamous cell carcinoma (ESCC) and colorectal cancer (CRC). Up to 170 patients are expected to be enrolled in the study.

03

Conditions studied

  • NSCLC (Advanced Non-small Cell Lung Cancer)
  • HNSCC
  • CRC (Colorectal Cancer)
  • ESCC
  • Colo-rectal Cancer
  • Head and Neck Cancer
  • Esophageal Squamous Cell Carcinoma (ESCC)

Keywords

  • ALX2004
  • EGFR
  • Solid Tumors
  • metastatic
  • Antibody Drug Conjugate
  • ADC
  • HNSCC
  • CRC
  • Lung
  • Non small cell lung cancer
  • esophageal
  • EGFR ADC
04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Participants with locally advanced, recurrent or confirmed HNSCC, NSCLC, ESCC, CRC; locally advanced or recurrent disease must not be amenable to resection with curative intent

    1. Dose Escalation: Participants who have or progressed following prior anticancer therapy in the advanced/metastatic setting and for whom no approved or standard therapy is available.
    2. Dose Exploration and Dose Expansion: The following tumor-specific criteria also apply. These cohorts will include all or a subset of these tumors.

HNSCC - Received no more than 3 in the advanced or metastatic setting

NSCLC - For participants with a targetable molecular alteration: received appropriate standard targeted therapy and no more than 2 prior lines of systemic chemotherapy in the advanced/metastatic setting. For participants without a targetable molecular alteration: received platinum-based chemotherapy and CPI (in combination or separately), and have received no more than 2 prior lines of systemic chemotherapy in the advanced/metastatic setting

ESCC - Received no more than 3 prior lines of therapy in the advanced/metastatic setting

CRC - For participants with a targetable molecular alteration (including dMMR or MSI-H): Received appropriate standard therapy for the alteration, at least 2 prior lines of systemic chemotherapy, and no more than 4 prior lines of therapy in the advanced/metastatic setting. For participants without a targetable molecule alteration: Received at least 2 prior lines of systemic chemotherapy (including an oxaliplatin-based chemotherapy), vascular endothelial growth factor (VEGF)-based therapy, and no more than 4 prior lines of therapy in the advanced/metastatic setting.

  • Adequate Bone Marrow Function
  • Adequate Renal \& Liver Function
  • Adequate Performance Status

Exclusion criteria

Exclusion Criteria:

  • Participants with disease suitable for local therapy with curative intent.
  • Has a of less than 3 months and/or has rapidly progressing disease (e.g., tumor bleeding, uncontrolled tumor pain) in the opinion of the treating investigator
  • Prior treatment with any ADCs that have an active TOP1 inhibitor-based component
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
170 participants (estimated)

Study arms

  • Experimental
    ALX2004 Phase 1a (Dose Escalation)

    ALX2004 will be administered. Patients will be enrolled into escalating dose levels during the dose escalation phase

    Drug: ALX2004

  • Experimental
    ALX2004 Phase 1a (Dose Exploration)

    ALX2004 will be administered. All or a subset of tumors tested in dose escalation will enroll into 1 or 2 dose levels during the dose exploration phase

    Drug: ALX2004

  • Experimental
    ALX2004 Phase 1b (Dose Expansion)

    ALX2004 will be administered. Patients will receive the recommended phase 2 dose during the dose expansion phase

    Drug: ALX2004

Interventions

  • DrugALX2004

    ALX2004 is a novel ADC targeting EGFR. Drug: ALX2004 IV Infusion

  • DrugALX2004

    ALX2004 is a novel ADC targeting EGFR. Drug: ALX2004 IV infusion

  • DrugALX2004

    ALX2004 is a novel ADC targeting EGFR. Drug: ALX2004 IV infusion

06

What researchers measure

Primary outcomes

  1. Phase 1a: Incidence of dose limiting toxicities (DLTs)

    Phase 1a: Number and proportion of participants enrolled in the dose escalation phase who experience dose-limiting toxicities (DLTs), received at least one dose of ALX2004 and completed the DLT evaluation

    Time frame: Up to 28 days

  2. Phase 1a: Incidence of treatment emergent adverse events

    Phase 1a: Adverse Events as characterized by type, frequency, severity (NCI CTCAE v5.0), timing, seriousness, and relationship to the study drug in order to establish the RDE. Laboratory abnormalities as characterized by type, frequency, severity and timing

    Time frame: Up to 2 years from first dose

  3. Phase 1b: Overall Response Rate (ORR) per investigator assessment using RECIST v1.1

    Phase 1b: ORR is defined as proportion of participants whose BOR is complete response (CR) or partial response (PR)

    Time frame: Up to 2 years from first patient dosed in dose expansion phase

Secondary outcomes

  1. Phase 1a and 1b: Maximum Concentration (Cmax)

    To evaluate the Cmax of ALX2004

    Time frame: Up to 2 years

  2. Phase 1a and 1b: Time of Maximum Plasma Concentration (Tmax)

    To evaluate the Tmax of ALX2004

    Time frame: Up to 2 years

  3. Phase 1a and 1b: Clearance (CL)

    To evaluate the clearance of ALX2004

    Time frame: Up to 2 years

  4. Phase 1a and 1b: Area under the concentration time curve (AUC)

    To evaluate the AUC of ALX2004

    Time frame: Up to 2 years

  5. Phase 1a and 1b: Terminal elimination half-life (t1/2)

    To evaluate the t1/2 of ALX2004

    Time frame: Up to 2 years

  6. Phase 1a: Overall Response Rate (ORR) per investigator assessment using RECIST v1.1

    Phase 1a: ORR is defined as proportion of participants whose BOR is complete response (CR) or partial response (PR)

    Time frame: Up to 2 years from first dose

  7. Phase 1a and 1b: Evaluate the immunogenicity of ALX2004

    Measured by the presence of human plasma ADA (Anti-ALX2004 antibodies)

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

  8. Phase 1b: Incidence of treatment emergent adverse events

    AEs as characterized by type, frequency, severity (as graded by the NCI CTCAE v.5.0) timing, seriousness, and relationship to study drug. Laboratory abnormalities as characterized by type, frequency, severity and timing

    Time frame: Up to 2 years from first patient dosed in dose expansion phase

  9. Phase 1a and 1b: Progression Free Survival (PFS)

    PFS is defined as the time (in months) from the date of the first dose of ALX2004 to the date of the first instance of progressive disease or death

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

  10. Phase 1a and 1b: Overall Survival (OS)

    OS is defined as the time (in months) from the date of the first dose of ALX2004 to the date of death

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

  11. Phase 1a and 1b: Best Overall Response (BOR)

    BOR is defined as the best response reached during the course of the trial from the response categories of CR, PR, SD, PD, and No Response using RECIST v1.1

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

  12. Phase 1a and 1b: DCR (Disease Control Rate)

    DCR is defined as the proportion of participants whose BOR is PR, CR, or SD

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

  13. Phase 1a and 1b: Duration of Response (DoR)

    DoR is defined as the time (in months) from the first instance of a BOR, of CR/PR until the date of the first instance of progressive disease

    Time frame: Phase 1a: Up to 2 years from first dose. Phase 1b: Up to 2 years from first patient dosed in dose expansion phase

07

Study locations

11 of 12 sites recruiting
  • ALX Center 9
    La Jolla, California 92037, United States
    Recruiting
  • ALX Center 11
    Santa Monica, California 90404, United States
    Recruiting
  • ALX Center 7
    Tampa, Florida 33612, United States
    Recruiting
  • ALX Center 8
    Farmington Hills, Michigan 48334, United States
    Recruiting
  • ALX Center 3
    Grand Rapids, Michigan 49546, United States
    Recruiting
  • ALX Center 12
    Morristown, New Jersey 07962, United States
    Recruiting
  • ALX Center 10
    Columbus, Ohio 43210, United States
    Recruiting
  • ALX Center 6
    Portland, Oregon 97213, United States
    Recruiting
  • ALX Center 5
    Houston, Texas 77030, United States
    Recruiting
  • ALX Center 4
    West Valley City, Utah 84119, United States
    Recruiting
  • ALX Center 2
    Fairfax, Virginia 22031, United States
    Recruiting
  • ALX Center 1
    Spokane, Washington 99208, United States
    Withdrawn

    Not enrolling at this site.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2025 (actual). Primary completion is estimated for Jun 2027, 22 months after the start.

Of 473 industry-sponsored phase 1 interventional studies under Carcinoma, Non-Small-Cell Lung, half reached primary completion within 49 months of starting (the median), counting those still running; a quarter within 29 and three quarters within 66. This study's planned 22 months is below that.

Counting every sponsor, half of 699 studies reached it within 50 months; a quarter within 31 and three quarters within 70.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 27, 2025
First posted
Jul 25, 2025
StartActual
Aug 18, 2025
Primary completionEst.
Jun 2027
CompletionEst.
Dec 2027
Last update
Sep 30, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
4 sites added. ALX Center 1 is now Withdrawn
Show 4 added (4 United States)
  • ALX Center 9 · La Jolla, United States
  • ALX Center 11 · Santa Monica, United States
  • ALX Center 12 · Morristown, United States
  • ALX Center 10 · Columbus, United States
Sep 30, 2026
Show all 1 update
  1. Sep 30, 2026
    4 sites added. ALX Center 1 is now Withdrawn
    Show 4 added (4 United States)
    • ALX Center 9 · La Jolla, United States
    • ALX Center 11 · Santa Monica, United States
    • ALX Center 12 · Morristown, United States
    • ALX Center 10 · Columbus, United States

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07085091
Lead sponsor
ALX Oncology Inc.
Responsible party
Sponsor
First posted
Jul 25, 2025
Start date
Aug 18, 2025
Primary completion
Jun 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Sep 30, 2026

Study contacts

Athanasios Tsiatis, MD
Contact
info@alxoncology.com
650-466-7125

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion