ClinicalTrials.gg
TerminatedNCT04553692Updated Mar 28, 2025

Phase 1a/1b Study of Aplitabart (IGM-8444) Alone or in Combination in Participants with Relapsed, Refractory, or Newly Diagnosed Cancers

A Phase 1 interventional study of Aplitabart (IGM-8444) and FOLFIRI in Solid Tumor, Colorectal Cancer and Non Hodgkin Lymphoma, sponsored by IGM Biosciences, Inc.. Terminated at 58 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-03-28.

Sponsored by IGM Biosciences, Inc. · Phase 1, Interventional, and Treatment

Why this study was terminated
Study terminated due strategic corporate pivot to focus on auto-immune indications

From the registry’s dates

  • Primary completion was Jan 2025, 1 year 9 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
272
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a first-in-human, Phase 1a/1b, multicenter, open-label study to determine the safety, tolerability, and pharmacokinetics of aplitabart as a single agent and in combination in participants with relapsed and/or refractory solid or hematologic cancers, as well as newly diagnosed cancers, and an open-label, randomized study of aplitabart+FOLFIRI+bevacizumab.

Read the detailed description

Participants will be enrolled in Phase 1a, which consists of two stages: a dose-escalation stage and an expansion stage. Aplitabart will be used as a single agent and in combination with numerous other agents where standard therapeutic regimens do not exist, have proven to be ineffective or intolerable, or are considered inappropriate.

Colorectal participants may be enrolled in Phase 1b, an open-label, randomized study of aplitabart+FOLFIRI+ bevacizumab.

Aplitabart will be investigated in numerous tumor types including all-comers solid tumors, colorectal carcinoma (CRC), sarcoma, non-Hodgkin's lymphoma (NHL), acute myeloid leukemia (AML), and chronic lymphocytic leukemia (CLL).

Aplitabart will be administered intravenously (IV).

An alternative dosing schedule may be evaluated.

02

Conditions studied

  • Solid Tumor
  • Colorectal Cancer
  • Non Hodgkin Lymphoma
  • Sarcoma
  • Chondrosarcoma
  • Small Lymphocytic Lymphoma
  • Chronic Lymphocytic Leukemia
  • Acute Myeloid Leukemia

Keywords

  • Relapsed and/or Refractory
  • Metastatic Cancer
  • Advanced Tumors
  • Hematological cancer
  • Newly diagnosed
03

In context

Colorectal Neoplasms

6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.

This study's enrollment of 272 is above the median of 76 across 4,800 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

IGM Biosciences, Inc. is the lead sponsor of 10 studies on the registry; none are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) 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:

  • Age ≥ 18 years at time of signing ICF
  • Performance Status of 0 or 1
  • Histologic documentation of incurable, locally advanced or tumor of the type being evaluated in individual cohorts.
  • Adequate hepatic and renal function and adequate bone marrow reserve function.
  • For combination cohorts, participants must be eligible to receive the chemotherapy or targeted agent.
  • Ph1a only: No more than three prior therapeutic regimens.
  • Ph1b only: Must be FOLFIRI naïve participants and must have received only 1 prior therapeutic regimen administered for the treatment of cancer in the advanced/metastatic setting - OR - FOLFIRI naïve participants that only received therapy who progressed within six months after completing adjuvant therapy, and are confirmed to have locally advanced/metastatic disease

Key Exclusion Criteria:

  • Inability to comply with study and follow-up procedures.
  • Prior DR5 agonist therapy.
  • Concomitant use of agents well-known to cause liver toxicity.
  • Concomitant use of anti-cancer agents
  • Palliative radiation to bone metastases within 2 weeks prior to Day 1.
  • Major surgical procedure within 4 weeks prior to Day 1.
  • Untreated or active central nervous system (CNS) metastases (progressing or requiring anticonvulsants or for symptomatic control). Participants with a history of treated are eligible.
  • Prior use of any chemotherapeutic agent or small molecule inhibitors (SMI) within 2 weeks or 5 half-lives, prior to the first dose of study treatment
  • Treatment with a monoclonal antibody, or any other anticancer agent (including biologic, experimental, or hormonal therapy) or otherwise, that is not chemotherapy or a SMI, within 4 weeks or five half-lives prior to first dose of study treatment.
  • Ph1b: Participants who have previously received FOLFIRI treatment in the adjuvant, advanced, or metastatic disease setting
Terms in these criteria, in plain language(6)

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.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Metastases

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

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

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

Study arms

  • Experimental
    Ph1a: Aplitabart Single Agent Alternate Dosing Escalation

    Aplitabart will be administered intravenously as a single agent on an alternate dosing schedule.

    Drug: Aplitabart (IGM-8444)

  • Experimental
    Ph1a: Aplitabart + FOLFIRI ± bevacizumab Escalation and Expansion

    Aplitabart will be administered intravenously in combination with FOLFIRI± bevacizumab.

    Drug: Aplitabart (IGM-8444) · Drug: FOLFIRI · Drug: Bevacizumab (and approved biosimilars)

  • Experimental
    Ph1a: Aplitabart + Birinapant Escalation and Expansion

    Aplitabart will be administered intravenously in combination with Birinapant which will also be administered intravenously.

    Drug: Aplitabart (IGM-8444) · Drug: Birinapant

  • Experimental
    Ph1a: Aplitabart + Venetoclax Escalation and Expansion

    Aplitabart will be administered intravenously in combination with Venetoclax.

    Drug: Aplitabart (IGM-8444) · Drug: Venetoclax

  • Experimental
    Ph1a: Aplitabart + Docetaxel + Gemcitabine Escalation and Expansion

    Aplitabart will be administered intravenously in combination with Docetaxel and Gemcitabine.

    Drug: Aplitabart (IGM-8444) · Drug: Gemcitabine · Drug: Docetaxel

  • Experimental
    Ph1a: Aplitabart + Venetoclax + Azacitidine Escalation and Expansion

    Aplitabart will be administered intravenously in combination with Venetoclax and Azacitidine.

    Drug: Aplitabart (IGM-8444) · Drug: Venetoclax · Drug: Azacitidine

  • Experimental
    Ph1b: Aplitabart + FOLFIRI + Bevacizumab

    Aplitabart will be administered intravenously in combination with FOLFIRI + bevacizumab

    Drug: Aplitabart (IGM-8444) · Drug: FOLFIRI · Drug: Bevacizumab (and approved biosimilars)

  • Experimental
    Ph1b: FOLFIRI + Bevacizumab

    Standard of Care FOLFIRI + bevacizumab will be administered intravenously

    Drug: FOLFIRI · Drug: Bevacizumab (and approved biosimilars)

Interventions

  • DrugAplitabart (IGM-8444)

    DR5 Agonist Investigational Drug

  • DrugFOLFIRI

    Chemotherapy Regimen

    Also known as: Fluorouracil or 5-FU, Leucovorin, Irinotecan

  • DrugBevacizumab (and approved biosimilars)

    Drug page: Bevacizumab

    Targeted Therapy

    Also known as: Avastin

  • SMAC-mimetic Investigational Drug

  • Targeted Therapy

    Also known as: Venclexta

  • Chemotherapy

    Also known as: Gemzar

  • Chemotherapy

    Also known as: Taxotere, Docefrez

  • Chemotherapy

    Also known as: VIDAZA

06

What researchers measure

Primary outcomes

  1. Ph1a: Adverse Events of aplitabart as single agent and with FOLFIRI ± bevacizumab, aplitibart with birinapant, aplitibart with venetoclax, aplitibart with venetoclax and azacitadine, and aplitibart with gemcitabine and docetaxel

    Incidence of treatment-related AEs graded according to the NCI Common Technology Criteria for Adverse Events (CTCAE) v5.0

    Time frame: From Cycle 1 Day 1 through 28 days after the final dose of study drug

  2. Ph1a: To identify the recommended expansion dose for aplitabart as single agent, with FOLFIRI ± bevacizumab, aplitibart with birinapant, aplitibart with venetoclax, aplitibart with venetoclax and azacitadine, and aplitibart with gemcitabine and docetaxel

    Relationship between aplitabart dose and safety, PK, activity, and endpoints.

    Time frame: 4 weeks

  3. Ph1b: Progression-Free Survival (PFS)

    PFS is defined as the time from randomization to the first documented disease progression per RECIST 1.1 by investigator or death, whichever occurs first.

    Time frame: Study duration of approximately 36 months

Secondary outcomes

  1. Ph1a and Ph1b: Area Under the Curve (AUC) of aplitabart

    Area Under the Curve (AUC) of aplitabart as a single agent and in combination with the anticancer agents listed above.

    Time frame: At pre-defined intervals from Cycle 1 Day 1 through end of treatment at approximately 6 months

  2. Ph1a and Ph1b: Clearance (CL) of aplitabart

    Clearance (CL) of aplitabart as a single agent and in combination with the anticancer agents listed above.

    Time frame: At pre-defined intervals from Cycle 1 Day 1 through end of treatment at approximately 6 months

  3. Ph1a and Ph1b: Volume of distribution (V) of aplitabart

    Volume of distribution (V) of aplitabart as a single agent and in combination with the anticancer agents listed above.

    Time frame: At pre-defined intervals from Cycle 1 Day 1 through end of treatment at approximately 6 months

  4. Ph1a and Ph1b: Maximum Concentration (c-max) of aplitabart

    Maximum Concentration of aplitabart as a single agent and in combination with the anticancer agents listed above.

    Time frame: At pre-defined intervals from Cycle 1 Day 1 through end of treatment at approximately 6 months

  5. Ph1a and Ph1b: Immunogenicity

    Immunogenicity as assessed by detection of anti-drug antibodies (ADAs) to aplitabart

    Time frame: through end of treatment at approximately 6 months

  6. Ph1a and Ph1b: Objective Response Rate (ORR)

    Preliminary efficacy of objective response rate (ORR)

    Time frame: Study duration of approximately 36 months

  7. Ph1a and Ph1b: Duration of Response (DoR)

    Preliminary efficacy of duration of response (DoR)

    Time frame: Study duration of approximately 36 months

  8. Ph1a: Progression-Free Survival (PFS)

    PFS is defined as the time from first dose (Ph1a) to the first documented disease progression per RECIST 1.1 by investigator or death, whichever occurs first.

    Time frame: Study duration of approximately 36 months

  9. Ph1a and Ph1b: Overall Survival (OS)

    OS is defined as the time from first dose (Ph1a) or randomization (Ph1b) to death due to any cause

    Time frame: Study duration of approximately 36 months

  10. Ph1b: Adverse events of aplitabart + FOLFIRI + bevacizumab

    Incidence of treatment-related AEs graded according to the NCI Common Technology Criteria for Adverse Events (CTCAE) v5.0

    Time frame: From Cycle 1 Day 1 through 28 days after the final dose of study drug

07

Study locations

58 sites
  • Mayo Clinic
    Phoenix, Arizona 85054, United States
  • City of Hope Comprehensive Cancer Center
    Duarte, California 91010, United States
  • Cancer and Blood Specialty Clinic (CBSC)
    Los Alamitos, California 90720, United States
  • USC Norris
    Los Angeles, California 90033, United States
  • UCLA
    Los Angeles, California 90404, United States
  • UC Irvine Manchester Pavilion
    Orange, California 92868, United States
  • UCSF
    San Francisco, California 94143, United States
  • Rocky Mountain Cancer Centers
    Denver, Colorado 80218, United States
  • SCRI at Healthone
    Denver, Colorado 80218, United States
  • Yale Cancer Center
    New Haven, Connecticut 06510, United States
  • Mayo Clinic
    Jacksonville, Florida 32224, United States
  • FL Cancer Specialists - Lake Mary
    Lake Mary, Florida 32746, United States
  • Memorial Cancer Institute
    Pembroke Pines, Florida 33028, United States
  • Florida Cancer Specialists
    Sarasota, Florida 34232, United States
  • Fort Wayne Medical Oncology and Hematology
    Fort Wayne, Indiana 46804, United States
  • Norton Cancer Institute
    Louisville, Kentucky 40241, United States
  • Ochsner Cancer
    Jefferson, Louisiana 70121, United States
  • Maryland Oncology Hematology, PA - Columbia
    Columbia, Maryland 21044, United States
  • START Midwest
    Grand Rapids, Michigan 49546, United States
  • Minnesota Oncology - Minneapolis Clinic
    Minneapolis, Minnesota 55404, United States
  • Mayo Clinic
    Minneapolis, Minnesota 55905, United States
  • Washington University School of Medicine
    Saint Louis, Missouri 63110, United States
  • Gabrail Cancer Research
    Canton, Ohio 44718, United States
  • Stephenson Cancer Center
    Oklahoma City, Oklahoma 73104, United States
  • Providence Portland Medical Center
    Portland, Oregon 97213, United States
  • SCRI - Tennessee
    Nashville, Tennessee 37203, United States
  • Texas Oncology - Austin
    Austin, Texas 78705, United States
  • Mary Crowley Cancer Research
    Dallas, Texas 75230, United States
  • US Oncology - Dallas
    Dallas, Texas 75246, United States
  • US Oncology- Texas Oncology - Fort Worth
    Fort Worth, Texas 76104, United States
  • The University of Texas, MD Anderson
    Houston, Texas 77030, United States
  • Texas Oncology - San Antonio Northeast
    San Antonio, Texas 78217, United States
  • Texas Oncology - Tyler
    Tyler, Texas 75702, United States
  • Inova Schar Cancer Institute
    Fairfax, Virginia 22031, United States
  • Virginia Cancer Specialists
    Fairfax, Virginia 22031, United States
  • US Oncology- Virginia Oncology - Norfolk
    Norfolk, Virginia 23502, United States
  • Seattle Cancer Alliance - Fred Hutch
    Seattle, Washington 98109, United States
  • Westmead
    Westmead, New South Wales 2145, Australia
  • Southern Medical Day Care Centre
    Wollongong, New South Wales 2500, Australia
  • Peter MacCallum Cancer Centre
    Melbourne, Victoria 3052, Australia
  • Napean Cancer Care
    Kingswood, 2747, Australia
  • Tasman Health
    Southport, QLD 4215, Australia
  • Queen Elizabeth Hospital
    Woodville South, 5011, Australia
  • Institut Bergonié
    Bordeaux, 33076, France
  • Centre Georges Francois Leclerc
    Dijon, 21000, France
  • Saint Louis Hospital
    Paris, 75010, France
  • Institut de Cancérologie de l'Ouest
    Saint-Herblain, 44800, France
  • Gustave Roussy
    Villejuif, 94805, France
  • Samsung Medical Center
    Seoul, Gangnam-gu 06351, Korea, Republic of
  • Gachon University Gil Hospital
    Gyeonggi-do, Seongnam-si 13620, Korea, Republic of
  • Seoul National University Bundang Hospital
    Gyeonggi-do, Seongnam-si 13620, Korea, Republic of
  • Asan Medical Center
    Seoul, 03080, Korea, Republic of
  • Seoul National University Hospital
    Seoul, 03080, Korea, Republic of
  • Severance Hospital - Yonsei Cancer Center
    Soeul, Korea, Republic of
  • Vall d'Hebron Institut d'Oncologia
    Barcelona, 08035, Spain
  • Clinica Universidad de Navarra
    Madrid, 28027, Spain
  • Madrid FJD
    Madrid, 28040, Spain
  • Madrid CIOCC - HM Universitario Sanchinnarro
    Madrid, 28050, Spain
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2020 to primary completion in Jan 2025, 51 months.

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

Registered
Sep 4, 2020
First posted
Sep 17, 2020
StartActual
Sep 23, 2020
Primary completionActual
Jan 20, 2025
CompletionActual
Jan 20, 2025
Last update
Mar 28, 2025
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.
No changes since tracking began. The registry record was last updated on Mar 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04553692
Lead sponsor
IGM Biosciences, Inc.
Responsible party
Sponsor
First posted
Sep 17, 2020
Start date
Sep 23, 2020
Primary completion
Jan 20, 2025
Completion
Jan 20, 2025
Last update
Mar 28, 2025

Study contacts

Eric Humke, MD, PhD
study director · IGM Biosciences

Oversight

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

Not currently enrolling

This study is terminated, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Bevacizumab

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