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DRUG:

Mobista (CDX-301)

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Other names: Flt3-L, Fms-like tyrosine kinase 3 ligand, recombinant human FMS-like tyrosine kinase-3 ligand, CDX-301, rhuFlt3L, Flt-3 ligand
Associations
Company:
Celldex
Drug class:
Dendritic cell activator, FLT3 stimulant
Associations
5ms
Combination therapy • Enrollment change • Metastases
|
PD-L1 (Programmed death ligand 1)
|
PD-L1 IHC 22C3 pharmDx
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pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
6ms
FLT3 Ligand Immunotherapy and Stereotactic Radiotherapy for Advanced Non-small Cell Lung Cancer (clinicaltrials.gov)
P2, N=33, Active, not recruiting, Albert Einstein College of Medicine | Completed --> Active, not recruiting | Trial completion date: Oct 2022 --> Oct 2024
Enrollment closed • Trial completion date • Metastases
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Mobista (CDX-301)
8ms
NeoVax + CDX-301 and Nivolumab or Pembrolizumab in Melanoma (clinicaltrials.gov)
P1, N=30, Recruiting, Dana-Farber Cancer Institute | N=20 --> 30
Enrollment change • Combination therapy
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Keytruda (pembrolizumab) • Opdivo (nivolumab) • Mobista (CDX-301) • Neo Vax (NEO-PV-01)
9ms
Immunologic Effects of CDX-301 and CDX-1140 in Resectable Pancreatic Cancer Patients (clinicaltrials.gov)
P2, N=16, Terminated, Washington University School of Medicine | N=24 --> 16 | Trial completion date: Mar 2024 --> Nov 2023 | Recruiting --> Terminated | Trial primary completion date: Mar 2024 --> Nov 2023; Celldex decision
Enrollment change • Trial completion date • Trial termination • Trial primary completion date
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CDX-1140 • Mobista (CDX-301)
1year
Phase I trial of pegylated liposomal doxorubicin chemotherapy in combination with CD40 agonist and Flt3 ligand in metastatic triple-negative breast cancer (SABCS 2023)
This is a single arm phase I pilot study of liposomal doxorubicin, CDX-1140 (CD40 agonist monoclonal antibody), and CDX-301 (recombinant Flt3 ligand) combination therapy in patients with metastatic or unresectable locally advanced metastatic TNBC. Key eligibility criteria are unresectable stage III or stage IV TNBC (ER ≤10%, PR ≤10%, HER2/neu negative), 1st to 3rd line treatment for metastatic disease (1st line patients need to be PD-L1 negative by 22C3 assay), measurable disease by RECIST 1.1 criteria, consent for pre-treatment and on-treatment biopsies of amenable soft tissue tumor lesions, no prior treatment with an anti-CD40 antibody or a Flt3 ligand, no anthracycline treatment in the metastatic setting, no prior progression while on anthracycline-based therapy or within 6 months of completing neoadjuvant chemotherapy, and no history of non-infectious pneumonitis or current pneumonitis. This trial will enroll up to 45 patients across multiple sites (NCT05029999) and is currently open at University of Texas Southwestern Medical Center, Texas Oncology, University of Chicago, University of Texas San Antonio, Sarah Cannon Research Institute, and Johns Hopkins.
Combination therapy • P1 data • Metastases
|
HER-2 (Human epidermal growth factor receptor 2) • PD-L1 (Programmed death ligand 1) • CD40 (CD40 Molecule)
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HER-2 negative • PD-L1 negative
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PD-L1 IHC 22C3 pharmDx
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
1year
Antigen-loaded Monocyte Administration and Flt3 Ligand Augment the Antitumor Efficacy of Immune Checkpoint Blockade in a Murine Melanoma Model. (PubMed, J Immunother)
In this study, we investigated whether monocyte vaccination in combination with CDX-301, a DC-expanding cytokine Fms-like tyrosine kinase 3 ligand (Flt3L), could improve the antitumor efficacy of anti-programmed cell death (anti-PD-1) immune checkpoint blockade...To our knowledge, this is the first demonstration that a cancer vaccine strategy and Flt3L can improve the antitumor efficacy of anti-PD-1. The findings presented here warrant further study of how monocyte vaccines can improve Flt3L and immune checkpoint blockade as they enter clinical trials.
Preclinical • Journal • Checkpoint inhibition • Checkpoint block
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FLT3 (Fms-related tyrosine kinase 3)
|
Mobista (CDX-301)
over1year
FLT3 Ligand, CD40 Agonist Antibody, and Stereotactic Radiotherapy (clinicaltrials.gov)
P1/2, N=5, Terminated, Albert Einstein College of Medicine | N=46 --> 5 | Trial completion date: Aug 2024 --> Aug 2022 | Recruiting --> Terminated | Trial primary completion date: Dec 2023 --> Aug 2022; Low accrual
Enrollment change • Trial completion date • Trial termination • Trial primary completion date
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docetaxel • CDX-1140 • Mobista (CDX-301)
over1year
Combination therapy • Trial completion date • Metastases
|
PD-L1 (Programmed death ligand 1)
|
PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
over1year
Converting HR+ Breast Cancer Into an Individualized Vaccine (clinicaltrials.gov)
P2, N=100, Recruiting, Weill Medical College of Cornell University | Trial completion date: Dec 2025 --> Dec 2027 | Trial primary completion date: Dec 2023 --> Dec 2025
Trial completion date • Trial primary completion date
|
HER-2 (Human epidermal growth factor receptor 2) • PGR (Progesterone receptor)
|
HER-2 negative
|
Keytruda (pembrolizumab) • Mobista (CDX-301)
almost2years
Enrollment open • IO biomarker • Immunomodulating • Metastases
|
HER-2 (Human epidermal growth factor receptor 2) • PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule)
|
PD-L1 expression
|
CDX-1140 • Hiltonol (poly-ICLC) • Mobista (CDX-301)
almost2years
CD40 Agonist, Flt3 Ligand, and Chemotherapy in Triple Negative Breast Cancer (clinicaltrials.gov)
P1; Trial completion date: Oct 2024 --> Apr 2026 | Trial primary completion date: Oct 2024 --> Apr 2025
Combination therapy • Trial completion date • Trial primary completion date • Metastases
|
PD-L1 (Programmed death ligand 1)
|
PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
2years
Phase 1 trial of anthracycline chemotherapy in combination with CD40 agonist and Flt3 ligand in metastatic triple-negative breast cancer (SABCS 2022)
CDX-301 will be discontinued after 2 cycles; liposomal-doxorubicin and CDX-1140 will be continued until disease progression or clinically limiting toxicities. Key eligibility criteria are unresectable stage III or stage IV TNBC (ER ≤10%, PR ≤10%, HER2/neu negative), 1st to 3rd line metastatic treatment setting (1st line patients need to be PD-L1 negative by 22C3 assay), measurable disease by RECIST 1.1 criteria, consent for pre- treatment and on-treatment biopsies of amenable soft tissue tumor lesions, no prior treatment with an anti-CD40 antibody or a Flt3 ligand, no anthracycline treatment in the metastatic setting, no prior progression while on anthracycline-based therapy or within 6 months of completing neoadjuvant chemotherapy, and no history of non-infectious pneumonitis or current pneumonitis. This trial will enroll up to 45 patients across multiple sites (NCT05029999).
Combination therapy • P1 data
|
HER-2 (Human epidermal growth factor receptor 2) • PD-L1 (Programmed death ligand 1) • CD40 (CD40 Molecule)
|
HER-2 negative • PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx
|
CDX-1140 • Mobista (CDX-301)
2years
In Situ Immunomodulation With CDX-301, Radiation Therapy, CDX-1140 and Poly-ICLC in Patients w/ Unresectable and Metastatic Solid Tumors (clinicaltrials.gov)
P1, N=18, Not yet recruiting, University of Southern California | Trial completion date: Nov 2024 --> Sep 2025 | Trial primary completion date: Nov 2023 --> Sep 2024
Trial completion date • Trial primary completion date • IO biomarker
|
HER-2 (Human epidermal growth factor receptor 2) • PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule)
|
PD-L1 expression
|
CDX-1140 • Hiltonol (poly-ICLC) • Mobista (CDX-301)
over2years
Converting HR+ Breast Cancer Into an Individualized Vaccine (clinicaltrials.gov)
P2, N=100, Recruiting, Weill Medical College of Cornell University | Trial completion date: Dec 2023 --> Dec 2025 | Trial primary completion date: Dec 2021 --> Dec 2023
Trial completion date • Trial primary completion date
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
|
HER-2 negative
|
Keytruda (pembrolizumab) • Mobista (CDX-301)
over2years
Combination therapy • Enrollment open
|
PD-L1 (Programmed death ligand 1)
|
PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx • VENTANA PD-L1 (SP142) Assay
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
over2years
Phase 1 pilot study with dose expansion of chemotherapy in combination with CD40 agonist and Flt3 ligand in metastatic triple-negative breast cancer. (ASCO 2022)
This is a single arm phase I pilot study of liposomal-doxorubicin, CDX-1140 (CD40 agonist), and CDX-301 (Flt3 ligand) combination therapy in patients with metastatic or unresectable locally advanced metastatic triple-negative breast cancer. Key eligibility criteria are unresectable stage III or stage IV triple-negative breast cancer (ER ≤10%, PR ≤10%, HER2/neu negative), 1st to 3rd line metastatic treatment setting (1st line patients need to be PD-L1 negative by 22C3 assay), measurable disease by RECIST 1.1 criteria, consent for pre-treatment and on-treatment biopsies of amenable soft tissue tumor lesions, no prior treatment with an anti-CD40 antibody or a Flt3 ligand, no anthracycline treatment in the metastatic setting, no prior progression while on anthracycline-based therapy or within 6 months of completing neoadjuvant chemotherapy, and no history of non-infectious pneumonitis or current pneumonitis. This trial will enroll up to 45 patients across multiple sites.
Combination therapy • P1 data • Clinical
|
HER-2 (Human epidermal growth factor receptor 2) • PD-L1 (Programmed death ligand 1) • CD40 (CD40 Molecule)
|
HER-2 negative • PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx
|
CDX-1140 • Mobista (CDX-301)
over2years
Flt3 ligand augments immune responses to anti-DEC-205-NY-ESO-1 vaccine through expansion of dendritic cell subsets. (PubMed, Nat Cancer)
We evaluated a regimen of Flt3L (CDX-301) to increase DCs and other antigen-presenting cells, poly-ICLC (TLR3 agonist that activates DCs) and a vaccine comprising anti-DEC-205-NY-ESO-1, a fusion antibody targeting CD205, linked to NY-ESO-1. Transcriptional analyses revealed gene signatures associated with CDX-301 induction of an early, durable immune response. This study reveals in vivo effects of Flt3L on innate immune cells in the setting of vaccination, leading to an immunogenic vaccine regimen.
Clinical • Clinical Trial,Phase II • Journal • IO biomarker
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FLT3 (Fms-related tyrosine kinase 3) • CTAG1B (Cancer/testis antigen 1B) • CDK1 (Cyclin-dependent kinase 1)
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Hiltonol (poly-ICLC) • Mobista (CDX-301) • rasdegafusp alfa (CDX-1401)
over2years
Combination therapy • Trial initiation date
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PD-L1 (Programmed death ligand 1)
|
PD-L1 negative
|
PD-L1 IHC 22C3 pharmDx • VENTANA PD-L1 (SP142) Assay
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
almost3years
Clinical • Enrollment change • Trial withdrawal • IO biomarker
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PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule)
|
PD-L1 expression
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CDX-1140 • Hiltonol (poly-ICLC) • Mobista (CDX-301)
almost3years
Radio-immunotherapy (CDX-301, Radiotherapy, CDX-1140 and Poly-ICLC) for the Treatment of Unresectable or Metastatic Breast Cancer Patients (clinicaltrials.gov)
P1, N=36, Not yet recruiting, Roswell Park Cancer Institute | Trial completion date: Nov 2023 --> Nov 2024 | Trial primary completion date: Nov 2022 --> Nov 2023
Clinical • Trial completion date • Trial primary completion date • IO biomarker
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PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule)
|
PD-L1 expression
|
CDX-1140 • Hiltonol (poly-ICLC) • Mobista (CDX-301)
3years
Clinical • Trial completion
|
CTAG1B (Cancer/testis antigen 1B) • CD4 (CD4 Molecule) • PRAME (Preferentially Expressed Antigen In Melanoma)
|
CTAG1B expression
|
Hiltonol (poly-ICLC) • Mobista (CDX-301) • rasdegafusp alfa (CDX-1401)
3years
CD40 Agonist, Flt3 Ligand, and Chemotherapy in Triple Negative Breast Cancer (clinicaltrials.gov)
P1, N=45, Not yet recruiting, University of Texas Southwestern Medical Center
Clinical • New P1 trial • Combination therapy
|
PD-L1 (Programmed death ligand 1)
|
PD-L1 negative
|
pegylated liposomal doxorubicin • CDX-1140 • Mobista (CDX-301)
4years
Clinical • New P1 trial • IO biomarker
|
PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule)
|
PD-L1 expression
|
CDX-1140 • Hiltonol (poly-ICLC) • Mobista (CDX-301)
over4years
Converting HR+ Breast Cancer Into an Individualized Vaccine (clinicaltrials.gov)
P2, N=100, Recruiting, Weill Medical College of Cornell University | Active, not recruiting --> Recruiting
Clinical • Enrollment open
|
HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
|
HER-2 negative
|
Keytruda (pembrolizumab) • Mobista (CDX-301)
over4years
Converting HR+ Breast Cancer Into an Individualized Vaccine (clinicaltrials.gov)
P2, N=100, Active, not recruiting, Weill Medical College of Cornell University | Recruiting --> Active, not recruiting
Clinical • Enrollment closed
|
HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
|
HER-2 negative
|
Keytruda (pembrolizumab) • Mobista (CDX-301)
over4years
Converting HR+ Breast Cancer Into an Individualized Vaccine (clinicaltrials.gov)
P2, N=100, Recruiting, Weill Medical College of Cornell University | Not yet recruiting --> Recruiting
Clinical • Enrollment open
|
HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
|
HER-2 negative
|
Keytruda (pembrolizumab) • Mobista (CDX-301)