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  • Mueller, Christian  (4)
  • Triebel, Frederic  (4)
  • 1
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    Results from a phase II study of eftilagimod alpha (soluble LAG-3 protein) and pembrolizumab in patients with PD-L1 unselected metastatic non-small cell lung carcinoma.
    American Society of Clinical Oncology (ASCO) ; 2021
    In:  Journal of Clinical Oncology Vol. 39, No. 15_suppl ( 2021-05-20), p. 9046-9046
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 39, No. 15_suppl ( 2021-05-20), p. 9046-9046
    Abstract: 9046 Background: Eftilagimod alpha (efti) is a soluble LAG-3 protein that binds to a subset of MHC class II molecules to mediate antigen presenting cell (APC) activation and CD8 T-cell activation. The stimulation of the dendritic cell network and subsequent T cell recruitment with efti may lead to stronger anti-tumor responses in combination than observed with pembrolizumab alone. We hereby report results of the 1st line non-small cell lung carcinoma (NSCLC) part of the phase II trial (NCT03625323). Methods: Patients (pts) with untreated, immunotherapy naïve, advanced NSCLC unselected for PD-L1 expression were recruited into part A. The study used a Simon's 2-stage design (17 pts planned for stage 1 and 19 pts for stage 2), with objective response rate (ORR) by iRECIST as the primary endpoint (EP). Secondary EPs include tolerability, disease control rate (DCR), progression free survival (PFS), overall survival (OS), PK, PD and immunogenicity. Efti is administered as 30 mg subcutaneous injection every 2 wks for 8 cycles and then every 3 wks for 9 cycles with pembrolizumab (200 mg intravenous infusion every 3 wks for up to 2 yrs). Imaging was performed every 8 weeks locally and with blinded independent central review (BICR) retrospectively. The study was approved by ethic committees and institutional review boards. Results: In total 36 pts were enrolled. At data cut-off (Jan 2021; median FU of 14 months), the median age was 69 yrs (range 53-84) and 69 % were male. The ECOG PS 0 and 1 was 42% and 58% respectively. Patients had squamous (42%) and non-squamous (58%) NSCLC and 95% presented with metastatic disease. All PD-L1 subgroups (TPS 〈 1 %, ≥ 1 % to ≤49 %; ≥50 %) were represented with 36% pts having ≥50% TPS. Pts received a median of 7.0 (range 1 – 31) pembrolizumab and 11.5 (range 1-22) efti administrations. Responses as per BICR and local read are shown in the table. ORR (local, iRECIST) by different PD-L1 subgroups was 27% for pts with TPS 〈 1%, 39 % for TPS ≥1 %and 54% for ≥50 % TPS. Median PFS (n=36) was 8.2 months while median OS was not yet reached. The most common ( 〉 20 %) treatment emergent adverse events (AEs) were asthenia (47 %), cough (36 %), decreased appetite (36 %), dyspnea (32 %), pruritus (31 %), fatigue (28 %), diarrhea (25 %), anemia (25 %), constipation (25 %) and back pain (22%). Two patients discontinued treatment due to adverse reactions (Grade 4 immune-mediated hepatitis, Grade 3 AST+ALT increase). Conclusions: Efti in combination with pembrolizumab is safe and shows encouraging antitumor activity in 1st line advanced NSCLC patients across all PD-L1 (TPS) levels. Clinical trial information: NCT03625323. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2021.39.15_suppl.9046
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2021
    detail.hit.zdb_id: 2005181-5
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  • 2
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    359 Results from a phase II study of eftilagimod alpha (soluble LAG-3 protein) and pembrolizumab in patients with PD-L1 unselected metastatic 2nd line head and neck squamous cell carcinoma (HNSCC)
    BMJ ; 2021
    In:  Journal for ImmunoTherapy of Cancer Vol. 9, No. Suppl 2 ( 2021-11), p. A386-A386
    Details
    In: Journal for ImmunoTherapy of Cancer, BMJ, Vol. 9, No. Suppl 2 ( 2021-11), p. A386-A386
    Abstract: Eftilagimod alpha (efti) is a soluble LAG-3 protein targeting a subset of MHC class II, thus mediating antigen presenting cell (APC) and CD8 T-cell activation. Such stimulation of the dendritic cell network and resulting T cell recruitment by efti may lead to stronger anti-tumor responses than observed with pembrolizumab alone. We hereby report results of the 2nd line metastatic head and neck squamous cell carcinoma (HNSCC) cohort (part C) of the TACTI-002 phase II trial ( NCT03625323 ). Methods Eligible patients (pts) with HNSCC, unselected for PD-L1 expression with disease progression on or after 1st line platinum-based therapy, received 30 mg subcutaneous efti Q2W for 24 weeks and 200 mg pembrolizumab Q3W for up to 2 years or until disease progression. The study used a Simon’s 2-stage design with objective response rate (ORR) as the primary endpoint (EP). Secondary EPs included tolerability, progression free survival (PFS), overall survival (OS), pharmacokinetics, pharmacodynamics, and immunogenicity. Tumor response was assessed Q9W. PD-L1 was assessed centrally (22C3 clone). The study was approved by ethic committees and institutional review boards. Results Between Mar 2019 and Jan 2021, 39 pts were enrolled (cut-off Apr 2021). The median age was 62 yrs (range 37–84) with 90% male pts. ECOG was 0 and 1 in 33% and 67%, respectively. Primary tumor location at diagnosis was oropharynx (36%), oral cavity (31%), hypopharynx (18%) and larynx (15%) with all PD-L1 subgroups (CPS 〈 1, ≥1 to ≤19; ≥20) being represented. All pts were pre-treated with platinum-based chemotherapy. Thirty-seven (37) pts were evaluated for response with ORR (iRECIST) of 30% (95% CI 16–47%) with 5 (14%) CRs; 6 (16%) PRs; 3 (8%) SDs; 17 (46%) PDs and 6 (16%) pts not evaluable. Median PFS was 2.1 months and 30+% were progression-free at 6 months. One patient (3%) discontinued due to pembro-related adverse event. The most common ( 〉 10%) treatment emergent adverse events were hypothyroidism (21%), cough (18%), asthenia (15%), fatigue (13%), anemia (13%), diarrhea (13%) and weight decreased (13%). Conclusions Efti in combination with pembrolizumab is safe, showing encouraging antitumor activity in platinum pre-treated, 2nd line HNSCC patients. For further investigation of this combination, a 1st line HNSCC trial ( NCT04811027 ) has been initiated. Trial Registration NCT03625323 Ethics Approval The study was approved by relevant ethic committees and institutional review boards
    Type of Medium: Online Resource
    ISSN: 2051-1426
    URL: Article
    DOI: 10.1136/jitc-2021-SITC2021.359
    Language: English
    Publisher: BMJ
    Publication Date: 2021
    detail.hit.zdb_id: 2719863-7
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  • 3
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    Final results from TACTI-002 Part C: A phase II study of eftilagimod alpha (soluble LAG-3 protein) and pembrolizumab in patients with metastatic 2nd line head and neck squamous cell carcinoma unselected for PD-L1.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. 6029-6029
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. 6029-6029
    Abstract: 6029 Background: Eftilagimod alpha (E), a soluble LAG-3 protein, acts as an MHC class II agonist triggering activation of antigen-presenting cells (APC) and CD8 T-cells. Using efti to enhance patients’ immunity may lead to stronger anti-tumor responses than observed with pembrolizumab (P) alone. We report final results from Part C of the TACTI-002 trial (NCT03625323) where 2 nd line metastatic head and neck squamous cell carcinoma (HNSCC) patients (pts) unselected for PD-L1 were treated with E + P. Methods: Pts with metastatic HNSCC, unselected for PD-L1 expression with disease progression on or after 1 st line platinum-based therapy (± cetuximab) were enrolled. Primary endpoint (EP) was objective response rate (ORR) by iRECIST. Other EPs included tolerability, progression free survival (PFS), duration of response (DoR), and overall survival (OS). Pts received E (30 mg SC Q2W for eight 3-week cycles and then Q3W up to 1 yr) with P (200 mg IV Q3W up to 2 yrs). Imaging was performed Q9W. PD-L1 was retrospectively assessed using the IHC 22C3 kit. The study was approved by ethic committees and institutional review boards. Results: 39 pts were enrolled between Mar 2019-Jan 2021 (cut-off Jul 2022) with HNSCC of oropharynx (38%), oral cavity (32%), hypopharynx (19%) and larynx (16%). Median age was 63 yrs (48-84 yrs) and 90% were male. ECOG PS was 0 and 1 in 35% and 65% of pts. Two pts were excluded from efficacy results due to fatal COVID-19 prior to their first post-baseline scan. The primary EP, ORR by iRECIST, was 30% with 14% complete responders (see table). ORR by RECIST 1.1 was comparable (24%). Median PFS by iRECIST was 2.1 mo with 32% of pts progression-free at 6 mo. Median OS was 8.7 mo with 46% alive at 12 mo. Median DoR by iRECIST was not reached with 17 mo min FU. Responses were seen in all PD-L1 subgroups (see table). ORR, 6-mo PFS, 12-mo OS rates for PD-L1 CPS ≥20 were 60%, 53%, 73% with a median OS of 15.5 months. Two pts (5%) discontinued due to adverse events (AE) (fatigue and arthralgia [each grade 2]; pneumonitis [grade 3] ) that were related to study treatment (efti and/or pembro). The most common (≥15%) AEs were hypothyroidism (21%), asthenia (21%), cough (18%), anemia (18%), weight decrease (18%), and fatigue (15%). Conclusions: Efti + pembrolizumab is safe, showing encouraging antitumor activity in platinum and partially cetuximab pre-treated, 2nd line HNSCC patients. TACTI-003 (NCT04811027) a randomized study in 1st line HNSCC is currently recruiting. Response by iRECIST: Clinical trial information: NCT03625323 . [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.6029
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
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  • 4
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    A phase II study (TACTI-002) in first-line metastatic non–small cell lung carcinoma investigating eftilagimod alpha (soluble LAG-3 protein) and pembrolizumab: Updated results from a PD-L1 unselected population.
    American Society of Clinical Oncology (ASCO) ; 2022
    In:  Journal of Clinical Oncology Vol. 40, No. 16_suppl ( 2022-06-01), p. 9003-9003
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 40, No. 16_suppl ( 2022-06-01), p. 9003-9003
    Abstract: 9003 Background: Eftilagimod alpha (E) is a soluble LAG-3 protein binding to a subset of MHC class II molecules to mediate antigen presenting cell (APC)/CD8 T-cell activation. Stimulation of the APCs and subsequent T cell recruitment with E may lead to stronger anti-tumor responses than observed with pembrolizumab (P) alone. We hereby report results of the extended first-line non-small cell lung carcinoma (NSCLC) cohort of the TACTI-002 (“Two ACTive Immunotherapies”) phase II trial. Methods: Pts with untreated metastatic NSCLC, unselected for PD-L1 expression were recruited. Objective response rate (ORR) by iRECIST was the primary endpoint (EP) and secondary EPs include ORR by RECIST 1.1, tolerability, disease control rate (DCR), progression free survival (PFS), overall survival (OS) and exploratory biomarker. Pts received 30 mg E SC q2w for 8 cycles (1 cycle= 3 weeks) and then q3w for up to 1 year with P (200 mg IV q3w for up to 2 years). Imaging was done every 8 weeks. PD-L1 was assessed centrally. This has been approved by relevant CAs, ECs, and IRBs. Results: From Mar 2019 to Nov 2021 114 pts were enrolled. Median age was 67 years (44-85) and 74% were male. ECOG PS was 0 and 1 in 37% and 63% of pts, respectively. Pts presented squamous (35%) or non-squamous (62%) NSCLC with 88% of pts at stage IV at the time of study entry. All PD-L1 subgroups were represented (Table). Pts received median 6.0 (range 1–35) P and 7.0 (1-22) E administrations. 19 (17%) pts discontinued treatment due to adverse events (AEs). The most common (≥15%) AEs were dyspnea (33%), asthenia (30%), decreased appetite (22%), cough (20%), anemia (20%), fatigue (19%), pruritus (18%), constipation (17%) and diarrhea (15%). At data cut-off (Jan 2022), 75 pts with a minimum follow-up of 6 months were evaluated for efficacy. ORR (iRECIST) was 37.3% in the ITT and 41.8%% in the evaluable pts assessed by local read. DCR 73.3% was reported. Response rate for squamous and non-squamous pathology were 33.3 % and 40.3 %, respectively. Results according to RECIST 1.1 were comparable. Responses were observed in all PD-L1 subgroups (Table). 24/28 (86%) responses were already confirmed while median duration of response was not yet reached (5 events). Conclusions: E + P is safe and shows encouraging antitumor activity in first-line metastatic NSCLC patients unselected for PD-L1, warranting further investigation. Clinical trial information: NCT03625323. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2022.40.16_suppl.9003
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2022
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
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