GlobeCitizen
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- 2012-07-14
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Favorable policies continually coming in our way:
Some interesting comments by others:
"The FDA recently (October 2022) released new draft guidance titled: Tissue Agnostic Drug Development in Oncology - Guidance for Industry
A tissue agnostic oncology drug can therefore be used to treat multiple types of cancer (e.g., colorectal, thyroid, and breast cancers) with the targeted molecular alteration (e.g., either the same targeted molecular alteration or targeted molecular alterations affecting a single pathway). "
"A polyclonal but antigen agnostic approach includes the use of autologous whole cell tumour vaccines or tumour lysates, which provide the entire repertoire of a patients’ tumour antigens including mutated neoepitopes without the need for identification of individual antigens." (Protocol: Safety and efficacy of autologous tumour cell vaccines as a cancer therapeutic to treat solid tumours and haematological malignancies: a meta-analysis protocol for two systematic reviews)
“T-cell therapies can be antigen agnostic (administered without precise knowledge of the antigens targeted), such as in unmanipulated donor lymphocyte infusions (DLI) and TIL infusion, or targeted to known antigens.” T-Cell Immunotherapies Targeting Histocompatibility and Tumor Antigens in Hematological Malignancies
“… many prefer the concept of antigen-agnostic immunotherapies that allow each patient’s immune system to determine its own antigen specificities.” Quantifying Antigen-Specific T Cell Responses When Using Antigen-Agnostic Immunotherapies "
“A key difference between tissue agnostic oncology drug development and traditional oncology drug development is the inherent need in tissue agnostic drug development to generalize treatment effects based on data observed in some cancer types to other cancer types with the same targeted molecular alteration, when no subjects (or a limited number of subjects) with the other cancer types were included in the clinical trial(s). As described further in this guidance, such generalization may be justified, in appropriate cases, by a strong scientific rationale and clinical circumstances….” (Lines 59-65, draft Guidance; https://www.fda.gov/media/162346/download)
Do reports in the scientific literature support a strong scientific rationale that the tumor lysate-pulsed autologous dendritic cell vaccine approach is generalizable across diverse tumors/tissues, as evidenced by where that approach has been attempted?
“For indications where surgery can be performed as part of treatment, a common approach to antigen loading has been the use of tumor lysates as a source of antigen.” (Towards the rational design of a next-generation dendritic cell vaccine for cancer immunotherapy; see also https://www.futuremedicine.com/doi/full/10.2217/imt-2022-0036)
Sarcoma: Therapeutic cancer vaccines for pediatric malignancies: advances, challenges, and emerging technologies;
Colorectal cancer: Dendritic cell vaccine therapy for colorectal cancer
Breast cancer: https://link.springer.com/article/10.1007/s00262-011-1192-2
Glioma: https://aacrjournals.org/cancerres/...accination-with-Tumor-Lysate-Pulsed-Dendritic
Melanoma: https://journals.lww.com/immunother..._Characterization_of_Antitumor_T_cell.12.aspx
Liver: https://journals.lww.com/immunother...n_of_Advanced_Hepatocellular_Carcinoma.9.aspx; https://aasldpubs.onlinelibrary.wiley.com/doi/full/10.1002/hep.22626
Prostate: https://onlinelibrary.wiley.com/doi/abs/10.1002/(SICI)1097-0045(199601)28:1<65::AID-PROS9>3.0.CO;2-N
Acute Myelogenous Leukemia: https://onlinelibrary.wiley.com/doi/abs/10.1002/jca.10080; https://pubmed.ncbi.nlm.nih.gov/29632738/
Parathyroid carcinoma: https://eje.bioscientifica.com/view/journals/eje/142/3/300.xml
Ovarian: https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-019-02133-w
Kidney: https://aacrjournals.org/clincancer...unotherapy-of-Metastatic-Renal-Cell-Carcinoma
Glioblastoma: https://jamanetwork.com/journals/jamaoncology/fullarticle/2798847
Agnostic?
“A polyclonal but antigen agnostic approach includes the use of autologous whole cell tumour vaccines or tumour lysates, which provide the entire repertoire of a patients’ tumour antigens including mutated neoepitopes without the need for identification of individual antigens. (Protocol: Safety and efficacy of autologous tumour cell vaccines as a cancer therapeutic to treat solid tumours and haematological malignancies: a meta-analysis protocol for two systematic reviews)
“T-cell therapies can be antigen agnostic (administered without precise knowledge of the antigens targeted), such as in unmanipulated donor lymphocyte infusions (DLI) and TIL infusion, or targeted to known antigens.” T-Cell Immunotherapies Targeting Histocompatibility and Tumor Antigens in Hematological Malignancies
“… many prefer the concept of antigen-agnostic immunotherapies that allow each patient’s immune system to determine its own antigen specificities.” Quantifying Antigen-Specific T Cell Responses When Using Antigen-Agnostic Immunotherapies "
Some interesting comments by others:
"The FDA recently (October 2022) released new draft guidance titled: Tissue Agnostic Drug Development in Oncology - Guidance for Industry
A tissue agnostic oncology drug can therefore be used to treat multiple types of cancer (e.g., colorectal, thyroid, and breast cancers) with the targeted molecular alteration (e.g., either the same targeted molecular alteration or targeted molecular alterations affecting a single pathway). "
"A polyclonal but antigen agnostic approach includes the use of autologous whole cell tumour vaccines or tumour lysates, which provide the entire repertoire of a patients’ tumour antigens including mutated neoepitopes without the need for identification of individual antigens." (Protocol: Safety and efficacy of autologous tumour cell vaccines as a cancer therapeutic to treat solid tumours and haematological malignancies: a meta-analysis protocol for two systematic reviews)
“T-cell therapies can be antigen agnostic (administered without precise knowledge of the antigens targeted), such as in unmanipulated donor lymphocyte infusions (DLI) and TIL infusion, or targeted to known antigens.” T-Cell Immunotherapies Targeting Histocompatibility and Tumor Antigens in Hematological Malignancies
“… many prefer the concept of antigen-agnostic immunotherapies that allow each patient’s immune system to determine its own antigen specificities.” Quantifying Antigen-Specific T Cell Responses When Using Antigen-Agnostic Immunotherapies "
“A key difference between tissue agnostic oncology drug development and traditional oncology drug development is the inherent need in tissue agnostic drug development to generalize treatment effects based on data observed in some cancer types to other cancer types with the same targeted molecular alteration, when no subjects (or a limited number of subjects) with the other cancer types were included in the clinical trial(s). As described further in this guidance, such generalization may be justified, in appropriate cases, by a strong scientific rationale and clinical circumstances….” (Lines 59-65, draft Guidance; https://www.fda.gov/media/162346/download)
Do reports in the scientific literature support a strong scientific rationale that the tumor lysate-pulsed autologous dendritic cell vaccine approach is generalizable across diverse tumors/tissues, as evidenced by where that approach has been attempted?
“For indications where surgery can be performed as part of treatment, a common approach to antigen loading has been the use of tumor lysates as a source of antigen.” (Towards the rational design of a next-generation dendritic cell vaccine for cancer immunotherapy; see also https://www.futuremedicine.com/doi/full/10.2217/imt-2022-0036)
Sarcoma: Therapeutic cancer vaccines for pediatric malignancies: advances, challenges, and emerging technologies;
Colorectal cancer: Dendritic cell vaccine therapy for colorectal cancer
Breast cancer: https://link.springer.com/article/10.1007/s00262-011-1192-2
Glioma: https://aacrjournals.org/cancerres/...accination-with-Tumor-Lysate-Pulsed-Dendritic
Melanoma: https://journals.lww.com/immunother..._Characterization_of_Antitumor_T_cell.12.aspx
Liver: https://journals.lww.com/immunother...n_of_Advanced_Hepatocellular_Carcinoma.9.aspx; https://aasldpubs.onlinelibrary.wiley.com/doi/full/10.1002/hep.22626
Prostate: https://onlinelibrary.wiley.com/doi/abs/10.1002/(SICI)1097-0045(199601)28:1<65::AID-PROS9>3.0.CO;2-N
Acute Myelogenous Leukemia: https://onlinelibrary.wiley.com/doi/abs/10.1002/jca.10080; https://pubmed.ncbi.nlm.nih.gov/29632738/
Parathyroid carcinoma: https://eje.bioscientifica.com/view/journals/eje/142/3/300.xml
Ovarian: https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-019-02133-w
Kidney: https://aacrjournals.org/clincancer...unotherapy-of-Metastatic-Renal-Cell-Carcinoma
Glioblastoma: https://jamanetwork.com/journals/jamaoncology/fullarticle/2798847
Agnostic?
“A polyclonal but antigen agnostic approach includes the use of autologous whole cell tumour vaccines or tumour lysates, which provide the entire repertoire of a patients’ tumour antigens including mutated neoepitopes without the need for identification of individual antigens. (Protocol: Safety and efficacy of autologous tumour cell vaccines as a cancer therapeutic to treat solid tumours and haematological malignancies: a meta-analysis protocol for two systematic reviews)
“T-cell therapies can be antigen agnostic (administered without precise knowledge of the antigens targeted), such as in unmanipulated donor lymphocyte infusions (DLI) and TIL infusion, or targeted to known antigens.” T-Cell Immunotherapies Targeting Histocompatibility and Tumor Antigens in Hematological Malignancies
“… many prefer the concept of antigen-agnostic immunotherapies that allow each patient’s immune system to determine its own antigen specificities.” Quantifying Antigen-Specific T Cell Responses When Using Antigen-Agnostic Immunotherapies "