Abstract 1285
Background
Anaphylatoxin C5a is released in the cancer microenvironment and binds to the C5aR receptor, which in turns promotes protumoral inflammation and immune suppression through recruitment and activation of myeloid derived suppressor cells (MDSC) and neutrophils. Overexpression of C5aR has been reported in several tumor types and correlates with aggressive tumor features and poor prognosis. Additionally, C5aR was found to be upregulated in NSCLC patients in progression after an initial response to an anti-PD-(L)1 therapy (aPD1). IPH5401, a fully human anti-C5aR1 antibody, inhibits the C5a mediated effects on MDSC and neutrophils. Preclinical data suggest that the combined blockade of C5aR1 and aPD1 synergistically reduce tumor growth and delay tumor progression. These data suggest that combining IPH5401 with aPD1 may improve efficacy and overcome secondary resistance to aPD1.
Methods
This is an ongoing phase I to evaluate the safety of IPH5401 + durvalumab (durva) in advanced solid tumors. In the 3 + 3 dose-escalation, patients (pts) receive IPH5401 at 4 dose levels (DL) (DL1, DL2, DL3 [Q1w] and DL4 [Q2w]) single agent during the first 2 weeks (w) then in combination with durva 1500 mg Q4w. Blood samples are collected at various time points for characterization of pharmacokinetics, pharmacodynamics and immunogenicity. Upon completion of the phase I part and determination of a recommended phase II dose, expansion cohorts in NSCLC and HCC will be activated.
Results
As of April, 30th 2019, 12 pts have been enrolled (4 HCC, 2 UCC, 5 NSCLC, 1 RCC). No DLT was seen to date. DL3 and DL4 are ongoing. A total of 11 treatment related AEs (TRAEs) were reported in 5 patients: G2 diarrhea with lymphocytic colitis (n = 1), G1 diarrhea (n = 1), G1 skin rashes (n = 2), G1 White blood cell decrease (n = 1), G1 pneumopathy (n = 1), G1 lung disorder (n = 1), G1 fatigue (n = 1), G1 arthralgia (n = 1), G1 back pain (n = 1), G1 musculoskeletal chest pain (n = 1). There were no grade 3/4 TRAEs and no TRAEs that led to study discontinuation.
Conclusions
Preliminary results of this combination of IPH5401 plus durva suggest a manageable toxicity profile. Results of dose escalation including PK/PD data will be presented.
Clinical trial identification
NCT03665129.
Editorial acknowledgement
Legal entity responsible for the study
Innate Pharma.
Funding
Innate Pharma and AstraZeneca.
Disclosure
C. Massard: Honoraria (self), Advisory / Consultancy: Amgen; Honoraria (self), Advisory / Consultancy: Astellas; Honoraria (self), Advisory / Consultancy: AstraZeneca; Honoraria (self), Advisory / Consultancy: Bayer; Honoraria (self), Advisory / Consultancy: Beigene; Honoraria (self), Advisory / Consultancy: BMS; Honoraria (self), Advisory / Consultancy: Celgene; Honoraria (self), Advisory / Consultancy: Debiopharm; Honoraria (self), Advisory / Consultancy: Genentech; Honoraria (self), Advisory / Consultancy: Ipsen; Honoraria (self), Advisory / Consultancy: Janssen; Honoraria (self), Advisory / Consultancy: Lilly; Honoraria (self), Advisory / Consultancy: MSD; Honoraria (self), Advisory / Consultancy: Novartis; Honoraria (self), Advisory / Consultancy: Pfizer; Honoraria (self), Advisory / Consultancy: Roche; Honoraria (self), Advisory / Consultancy: Sanofi; Honoraria (self), Advisory / Consultancy: Orion. P. Cassier: Honoraria (self), Research grant / Funding (institution), Travel / Accommodation / Expenses: Novartis; Honoraria (self), Research grant / Funding (institution), Travel / Accommodation / Expenses: Roche/Genentech; Honoraria (self), Research grant / Funding (institution): Blueprint Medicines; Honoraria (self), Travel / Accommodation / Expenses: Amgen; Research grant / Funding (institution): Lilly; Research grant / Funding (institution): Bayer; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution): Celgene; Research grant / Funding (institution): Plexxikon; Research grant / Funding (institution): AbbVie; Research grant / Funding (institution), Travel / Accommodation / Expenses: BMS; Research grant / Funding (institution): Merck Serono; Research grant / Funding (institution), Travel / Accommodation / Expenses: MSD; Research grant / Funding (institution): Taiho; Research grant / Funding (institution): Toray; Research grant / Funding (institution): Transgene; Research grant / Funding (institution): Loxo; Research grant / Funding (institution): GSK; Research grant / Funding (institution): Innate Pharma; Research grant / Funding (institution): Janssen. J.C. Bendell: Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Gilead; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Genentech/Roche; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: BMS; Advisory / Consultancy, Research grant / Funding (institution): Five Prime; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Lilly; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Merck; Research grant / Funding (institution), Travel / Accommodation / Expenses: MedImmune; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Celgene; Advisory / Consultancy, Research grant / Funding (institution): EMD Serono; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Taiho; Advisory / Consultancy, Research grant / Funding (institution): MacroGenics; Advisory / Consultancy, Research grant / Funding (institution): GSK; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Novartis; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: OncoMed; Advisory / Consultancy, Research grant / Funding (institution): LEAP; Research grant / Funding (institution): TG Therapeutics; Advisory / Consultancy, Research grant / Funding (institution): AstraZeneca; Advisory / Consultancy, Research grant / Funding (institution): Innate Pharma; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: BI; Advisory / Consultancy, Research grant / Funding (institution): Daiichi Sankyo. D.B. Marie: Shareholder / Stockholder / Stock options, Full / Part-time employment: Innate Pharma. M. Blery: Shareholder / Stockholder / Stock options, Full / Part-time employment: Innate Pharma. C. Morehouse: Shareholder / Stockholder / Stock options, Full / Part-time employment: AstraZeneca. M. Ascierto: Shareholder / Stockholder / Stock options, Full / Part-time employment: AstraZeneca. R. Zerbib: Shareholder / Stockholder / Stock options, Full / Part-time employment: Innate Pharma. E. Mitry: Shareholder / Stockholder / Stock options, Full / Part-time employment: Innate Pharma. A.W. Tolcher: Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: AbbVie; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: ADC Therapeutics; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Adagene; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Agenus; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: AroBioTX; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Ascentage; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Aximmune; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Bayer; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: BioInvent; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Birdie; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Boston Bio; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: EMD Serono; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Forbius; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: HBM partners; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Ignitia; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Immunome; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Immunomet; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Jazz; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Mekanistic; Research grant / Funding (institution): Innate Pharma.
Resources from the same session
4868 - Evaluation of markers associated with efficacy of abiraterone acetate plus prednisone (AAP) in patients (pts) with castration-sensitive prostate cancer (mCSPC) from the LATITUDE study
Presenter: Kim Chi
Session: Poster Display session 3
Resources:
Abstract
4837 - LRP2, a potential new biomarker for Chinese younger aged intrahepatic cholangiocarcinoma patients
Presenter: Xiaoliang Shi
Session: Poster Display session 3
Resources:
Abstract
1286 - Reanalysis of the efficacy of molecular targeted agents (MTAs) given in the randomized trial SHIVA01 according to the ESMO ESCAT scale of actionability
Presenter: Aurelie Moreira
Session: Poster Display session 3
Resources:
Abstract
2736 - Comparison of Platforms for Determining Tumor Mutational Burden (TMB) From Blood Samples in Patients With Non-Small Cell Lung Cancer (NSCLC)
Presenter: Jonathan Baden
Session: Poster Display session 3
Resources:
Abstract
5045 - Comprehensive Pan-Cancer analysis of somatic mutations in drug transporters to reveal acquired and intrinsic drug resistance in 3149 metastatic cancer patients
Presenter: Sander Bins
Session: Poster Display session 3
Resources:
Abstract
4577 - Pan-Cancer Genomic Landscape of the Cyclin D1/FGF3,4,19 (11q13) Amplicon Including Associations with HPV Status, and ESR1 and AR Alterations
Presenter: Jennifer Johnson
Session: Poster Display session 3
Resources:
Abstract
5366 - Co-occurrence of NTRK fusions with other genomic biomarkers in cancer patients
Presenter: Xiaolong Jiao
Session: Poster Display session 3
Resources:
Abstract
4084 - Prospective comparative study of next-generation sequencing on fine needle aspirations versus core needle biopsies in cancer patients included in SHIVA02 trial
Presenter: Julien Masliah-Planchon
Session: Poster Display session 3
Resources:
Abstract
6017 - First national External Quality Assessement for the interpretation of somatic variants: assessment of 25 variants in colorectal, lung, ovarian cancers and melanoma in France
Presenter: Etienne Rouleau
Session: Poster Display session 3
Resources:
Abstract
2283 - Prospective testing of circulating tumor DNA in metastatic breast cancer facilitates clinical trial enrollment and precision oncology
Presenter: Andjelija Bujak
Session: Poster Display session 3
Resources:
Abstract