NCT04660929

Brief Summary

Phase 1, first-in-human, open label study of CAR macrophages in HER2 overexpressing solid tumors.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
48

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Feb 2021

Longer than P75 for phase_1

Geographic Reach
1 country

7 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 23, 2020

Completed
16 days until next milestone

First Posted

Study publicly available on registry

December 9, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

February 2, 2021

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

December 18, 2024

Status Verified

April 1, 2024

Enrollment Period

3.9 years

First QC Date

November 23, 2020

Last Update Submit

December 16, 2024

Conditions

Keywords

HER2-positive solid tumorsPhase 1cell therapyCAR-macrophageimmunotherapyadvanced cancerpost menopausalpremenopausalmetastatic cancerProstate CancerHead and Neck CancerLung Cancer, Small CellEndometrial CancerLung Cancer, Non-Small Cell

Outcome Measures

Primary Outcomes (3)

  • Assess the safety and tolerability of CT-0508 by estimating the frequency and severity of adverse events in subjects with HER2 overexpressing solid tumors.

    Frequency and severity of adverse events including, but not limited to, estimating frequency and severity of Cytokine Release Syndrome (CRS)

    14 months

  • Assess the feasibility of manufacturing CT-0508 by describing the percentage of products passing release criteria.

    Percentage of products that pass release criteria among all manufactured products.

    12 months

  • Assess the safety and tolerability of CT-0508 in combination with pembrolizumab by estimating the frequency and severity of adverse events in subjects with HER2 overexpressing solid tumors (CT-0508 and pembrolizumab substudy only)

    Frequency and severity of adverse events including, but not limited to, estimating frequency and severity of Cytokine Release Syndrome (CRS)

    14 months

Secondary Outcomes (2)

  • Estimate the objective response rate (ORR), according to RECIST v1.1, of at least 1 dose of CT-0508 among subjects with HER2 overexpressing solid tumors.

    24 months

  • Estimate progression-free survival (PFS).

    24 months

Study Arms (4)

Group 1 and Group 2

EXPERIMENTAL

Both groups will receive the full dose manufactured per patient. Group 1 will undergo intra subject dose escalation of IV administrations of up to 500 million total cells on Day 1, up to 1.5 billion total cells on Day 3, and up to 3.0 billion total cells on Day 5. Group 2 will receive the full dose IV on Day 1 of up to 5 billion cells total.

Biological: CT-0508

Intraperitoneal Administration

EXPERIMENTAL

All cohorts will receive the full dose manufactured per patient. Cohorts 1-3 will undergo intrasubject dose escalations of IP administration as follows: Cohort 1 up to 500 million total cells on Day 1, up to 1 billion total cells on Day 3 and up to 1.5 billion total cells on Day 5. Cohort 2 up to 1.5 billion total cells on Day 1, up to 2 billion total cells on Day 3 and any remaining cells on Day 5. Cohort 3 up to 2.5 billion total cells on Day 1 and up to 2.5 billion total cells on Day 3. Cohort 4 will 1 dose on Day 1 of up to 5 billion total cells.

Biological: CT-0508

89[Zr]radiolabeled CT-0508

EXPERIMENTAL

89\[Zr\] radiolabeled group will receive a full dose IV on Day 1 of up to 500 million total cells of 89\[Zr\] radiolabeled CT-0508 and non-radiolabeled CT-0508 of up to 4.5 billion total cells (Univ of Penn Abramson Cancer Center only).

Biological: CT-0508

CT-0508 in Combination with Pembrolizumab

EXPERIMENTAL

All regimen levels will receive the full dose manufactured per patient up to 5 billion total cells. Regimen Levels 1 and 2 will undergo intrasubject dose escalations of IV administration as follows: Regimen Level 1: up to 500 million total cells on Day 1, up to 1.5 billion total cells on Day 3, and up to 3.0 billion total cells on Day 5 plus pembrolizumab 200 mg q3w starting on Day 8. Regimen Level 2: up to 500 million total cells on Day 1, up to 1.5 billion total cells on Day 3, and up to 3.0 billion total cells on Day 5 plus pembrolizumab 200 mg q3w starting on Day 1. Regimen Level 3 will receive the full dose IV on Day 1 of up to 5 billion total cells plus pembrolizumab 200 mg q3w starting on Day 1.

Biological: CT-0508Biological: Pembrolizumab

Interventions

CT-0508BIOLOGICAL

anti-HER2 CAR macrophages

89[Zr]radiolabeled CT-0508CT-0508 in Combination with PembrolizumabGroup 1 and Group 2Intraperitoneal Administration
PembrolizumabBIOLOGICAL

anti-PD antibody

Also known as: Keytruda
CT-0508 in Combination with Pembrolizumab

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • HER2-positive recurrent or metastatic solid tumors for which there are no available curative treatment options.
  • Breast cancer and gastric/gastroesophageal junction cancers must have failed approved HER2-targeted agents.
  • Other HER2-positive tumor types must have failed standard of care therapies, while prior therapy with anti-HER2 drugs is not required.
  • Subject must be willing and able to undergo tumor tissue biopsy procedures
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
  • Subject has adequate bone marrow and organ function

You may not qualify if:

  • HIV, active hepatitis B or hepatitis C infection.
  • Diagnosis of immunodeficiency or chronic exposure to systemic corticosteroid therapy or any other form of immunosuppressive therapy
  • Untreated or symptomatic central nervous system (CNS) metastases or cytology proven carcinomatous meningitis.
  • o Subjects with small, asymptomatic CNS metastases that do not require treatment are permitted to enroll.
  • Left ventricular ejection fraction (LVEF) \<50% as determined by ECHO or multiple gated acquisition scan (MUGA)
  • CT-0508 in Combination with Pembrolizumab Substudy Only:
  • Subjects with severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients
  • Subjects with an active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive drugs).
  • Subjects who have a history of (non-infectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease
  • Subjects who have had an allogeneic tissue/solid organ transplant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

City of Hope National Medical Center

Duarte, California, 91010, United States

Location

UNC Lineberger Comprehensive Cancer Center

Chapel Hill, North Carolina, 27599, United States

Location

OHSU Knight Cancer Institute

Portland, Oregon, 97239, United States

Location

Abramson Cancer Center

Philadelphia, Pennsylvania, 19104, United States

Location

Tennessee Oncology / Sarah Cannon Research Institute

Nashville, Tennessee, 37203, United States

Location

M D Anderson Cancer Center

Houston, Texas, 77030, United States

Location

Fred Hutchinson Cancer Center

Seattle, Washington, 98109, United States

Location

Related Publications (3)

  • Klichinsky M, Ruella M, Shestova O, Lu XM, Best A, Zeeman M, Schmierer M, Gabrusiewicz K, Anderson NR, Petty NE, Cummins KD, Shen F, Shan X, Veliz K, Blouch K, Yashiro-Ohtani Y, Kenderian SS, Kim MY, O'Connor RS, Wallace SR, Kozlowski MS, Marchione DM, Shestov M, Garcia BA, June CH, Gill S. Human chimeric antigen receptor macrophages for cancer immunotherapy. Nat Biotechnol. 2020 Aug;38(8):947-953. doi: 10.1038/s41587-020-0462-y. Epub 2020 Mar 23.

    PMID: 32361713BACKGROUND
  • Reiss KA, Angelos MG, Dees EC, Yuan Y, Ueno NT, Pohlmann PR, Johnson ML, Chao J, Shestova O, Serody JS, Schmierer M, Kremp M, Ball M, Qureshi R, Schott BH, Sonawane P, DeLong SC, Christiano M, Swaby RF, Abramson S, Locke K, Barton D, Kennedy E, Gill S, Cushing D, Klichinsky M, Condamine T, Abdou Y. CAR-macrophage therapy for HER2-overexpressing advanced solid tumors: a phase 1 trial. Nat Med. 2025 Apr;31(4):1171-1182. doi: 10.1038/s41591-025-03495-z. Epub 2025 Feb 7.

  • Sly LM, McKay DM. Macrophage immunotherapy: overcoming impediments to realize promise. Trends Immunol. 2022 Dec;43(12):959-968. doi: 10.1016/j.it.2022.10.002. Epub 2022 Oct 29.

MeSH Terms

Conditions

AdenocarcinomaBile Duct NeoplasmsBiliary Tract NeoplasmsUrinary Bladder NeoplasmsBreast NeoplasmsCarcinoma, DuctalCarcinoma, HepatocellularNeoplasmsCarcinoma, Non-Small-Cell LungCarcinoma, Ovarian EpithelialCarcinoma, Small CellCarcinoma, Squamous CellCarcinoma, Transitional CellColorectal NeoplasmsInflammatory Breast NeoplasmsStomach NeoplasmsOvarian NeoplasmsPancreatic NeoplasmsProstatic NeoplasmsHead and Neck NeoplasmsEndometrial NeoplasmsSmall Cell Lung CarcinomaNeoplasm Metastasis

Interventions

pembrolizumab

Condition Hierarchy (Ancestors)

CarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeDigestive System NeoplasmsNeoplasms by SiteBile Duct DiseasesBiliary Tract DiseasesDigestive System DiseasesUrologic NeoplasmsUrogenital NeoplasmsFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrinary Bladder DiseasesUrologic DiseasesMale Urogenital DiseasesBreast DiseasesSkin DiseasesSkin and Connective Tissue DiseasesNeoplasms, Ductal, Lobular, and MedullaryLiver NeoplasmsLiver DiseasesCarcinoma, BronchogenicBronchial NeoplasmsLung NeoplasmsRespiratory Tract NeoplasmsThoracic NeoplasmsLung DiseasesRespiratory Tract DiseasesEndocrine Gland NeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleGenital Neoplasms, FemaleGenital DiseasesEndocrine System DiseasesGonadal DisordersNeoplasms, Squamous CellIntestinal NeoplasmsGastrointestinal NeoplasmsGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal DiseasesStomach DiseasesPancreatic DiseasesGenital Neoplasms, MaleGenital Diseases, MaleProstatic DiseasesUterine NeoplasmsUterine DiseasesNeoplastic ProcessesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Jeanett Wetzel

    Carisma Therapeutics

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 23, 2020

First Posted

December 9, 2020

Study Start

February 2, 2021

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

December 18, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations