P1, N=69, Recruiting, Emory University | Phase classification: P1b --> P1 | Trial completion date: Dec 2025 --> Dec 2026 | Trial primary completion date: Dec 2024 --> Dec 2025

P1, N=67, Active, not recruiting, Pfizer | Trial completion date: Feb 2024 --> Jun 2024 | Trial primary completion date: Feb 2024 --> Jun 2024

Our findings demonstrate the potential value of MerTK as a prognostic biomarker for gastric adenocarcinoma. Targeting MerTK may become a new treatment option, especially for patients with advanced tumors, and may overcome resistance to established chemotherapies.

Furthermore, transcriptional profiles of macrophages indicated robust pro-inflammatory reprogramming (elevated Nos2 and Il12; suppressed Arg1 and Mrc1 expression levels) for a subset of these immuno-stimulatory agents (UNC2025 and R848)...Finally, in an intradermal MC38 tumor model, cyclodextrin-modified macrin NPs loaded with immunostimulatory drugs significantly reduced tumor growth. Therefore, efficient and effective repolarization of tumor-associated macrophages to an M1-like phenotype-via drug-loaded macrins-inhibits tumor growth and may be useful as an adjuvant to existing immune checkpoint therapies.

P1, N=12, Not yet recruiting, University of Wisconsin, Madison

P1/2, N=120, Recruiting, Qurient Co., Ltd. | Phase classification: P1b/2 --> P1/2

P1, N=36, Active, not recruiting, Oscotec Inc. | Recruiting --> Active, not recruiting

P1, N=14, Completed, Oscotec Inc. | Unknown status --> Completed | N=40 --> 14

This study demonstrates that combined blockade of MET, AXL and EGFR is a feasible strategy for a subset of EGFR-mutant NSCLC.

P1, N=78, Recruiting, Qurient Co., Ltd. | Trial completion date: Nov 2023 --> Feb 2025 | Trial primary completion date: Jul 2023 --> Dec 2024

We found that combination therapy using the MER tyrosine kinase (MERTK) inhibitor UNC2025 and the histone deacetylase (HDAC) inhibitor Trichostatin A (TSA) effectively decreased meningioma spheroid viability and proliferation. Furthermore, we demonstrated this combination therapy significantly increased the expression of the epithelial marker E-cadherin and had a repressive effect on WHO grade 2-derived spheroid invasion, which is suggestive of a partial reversal of EMT in meningioma spheroids.

P1, N=84, Active, not recruiting, Incyte Corporation | Phase classification: P1a/1b --> P1 | Trial completion date: Dec 2023 --> Dec 2024 | Trial primary completion date: Nov 2023 --> Nov 2024

Finally, we investigated the synergistic effect of RGX-019-MMAE with Venetoclax (BCL2 inhibitor) or 5-Azacytidine in vitro. RGX-019-MMAE significantly induced cell death in AML cell lines and primary AML patient samples. RGX-019-MMAE, combined with chemotherapeutic agents and targeted therapy, produces a synergistic anti-leukemic effect. Our data indicates that MERTK is a potential therapeutic target in AML patients with monocytic subtypes of leukemia.

Arid3a promotes cholestatic liver injury by impairing Mertk-mediated efferocytosis of apoptotic cholangiocytes by macrophages during cholestasis. The Arid3a-Mertk axis is a promising novel therapeutic target for cholestatic liver diseases.

At variant level, PIK3CA p.H1047R (22%) and RBM26 p.Q701Tfs*23 (10%) were the top two somatic variants identified...Conclusions ctDNA status and dynamics correlate well with clinical status of patients with mILC, as determined by conventional monitoring tools such as imaging and biopsy. Our results indicate that personalized, tumor-informed, longitudinal ctDNA testing may serve as a useful tool for detection of progression and monitoring treatment response in mILC patients.

P1, N=42, Active, not recruiting, Meryx, Inc. | Recruiting --> Active, not recruiting

We developed a nanoscale combination drug formulation that exploits ectopic expression of MERTK tyrosine kinase and dependency on BCL-2 family proteins for leukemia cell survival in pediatric AML and infant ALL cells. We demonstrate ratiometric drug delivery and synergistic cell killing in AML, a result achieved by a systematic, generalizable approach of combination drug screening and nanoscale formulation that may be extended to other drug pairs or diseases in the future.

P1, N=24, Completed, Ono Pharmaceutical Co. Ltd | Suspended --> Completed | N=84 --> 24 | Trial completion date: Apr 2023 --> Nov 2022

Together, these findings present a systematic approach to high-throughput combination drug screening and multiagent drug delivery that maximizes the therapeutic potential of combined MRX-2843 and vincristine in T-ALL and describe a novel translational agent that could be used to enhance therapeutic responses to vincristine in patients with T-ALL. This broadly generalizable approach could also be applied to develop other constitutively synergistic combination products for the treatment of cancer and other diseases.

P1, N=61, Active, not recruiting, Pfizer | Recruiting --> Active, not recruiting | N=161 --> 61

P1a/1b, N=84, Active, not recruiting, Incyte Corporation | Recruiting --> Active, not recruiting | N=140 --> 84

Upon triggering immunogenicity with X-ray radiation, our hydrogel encapsulating efferocytosis inhibitor MRX-2843 enabled a cascade regulation to orchestrate polarization, efferocytosis, and phagocytosis of peritoneal macrophages for realizing robust phagocytosis of tumor cells and powerful antigen presentation, offering a potent approach for ovarian cancer therapy via bridging the innate effector function of macrophages with their adaptive immune response. Moreover, our hydrogel is also applicable for potent treatment of inherent CD24-overexpressed triple-negative breast cancer, providing an emerging therapeutic regimen for the most lethal malignancies in women.

Treatment with MRX-2843, a MERTK-selective inhibitor currently in Phase 1 clinical trials, also reduced tumor growth in mice. Together, these data demonstrate a critical role for MERTK as a mediator of tumor progression in the tumor immune microenvironment and implicate MRX-2843 as an effective strategy to exploit this finding in the clinic.

This data indicates that simultaneous targeting of Axl and MerTK with INCB081776, either alone or in combination with anti-PDL1, slows tumor growth and creates a proinflammatory TIME in mouse models of HNC.

Collectively, this macrophage repolarization had downstream effects on T cells within the leukemia microenvironment, including decreased PD-1Tim-3 and LAG3 checkpoint expression, and increased CD69CD107a expression. These results demonstrate that MerTK inhibition using MRX2843 altered the leukemia microenvironment from tumor-permissive toward immune responsiveness to leukemia and culminated in improved immune-mediated clearance of AML.

P1b, N=69, Recruiting, Emory University | Trial completion date: Dec 2024 --> Dec 2025

Moreover, in silico prediction of pharmacokinetic and physicochemical parameters of target compounds was carried out using SwissADME website. The quinazoline-2,4(1H,3H)-dione derivatives are promising antiproliferative candidates that require further optimisation.HighlightsNew 3-substituted quinazoline-2,4(1H,3H)-dione derivatives were synthesised and characterised.Compounds 4b and 4e showed higher cytotoxic activity than cabozantinib against HCT-116 colorectal cell lines.Both compounds 4b and 4e showed less toxicity to WI38 normal cell line compared to HCT 116 colon cancer cell line.Compound 4b was superior to cabozantinib in VEGFR-2 inhibition while compound 2c was equipotent to cabozantinib.Compounds 4b and 4e showed remarkable c-Met inhibitory activity.Compounds 4b and 4e arrested cell cycle and induced significant levels of apoptosis.In silico ADME prediction revealed high oral bioavailability and enhanced water solubility of target compounds as compared to cabozantinib.Target compounds interacted with both c-Met and VEGFR-2 active site in similar way to cabozantinib.

Up to 240 mg, Q702 has demonstrated the intended pharmacologic activity with acceptable safety profile. In biomarker analysis, immune modulation activity is exerted by Axl/Mer/CSF1R inhibition. Further assessment of pharmacokinetics, pharmacodynamics, safety and antitumor activity will be performed at the expansion phase at the RP2D in patients with selected advanced tumors.

Updated analyses demonstrate the long-term efficacy and safety of cabozantinib in Japanese patients with advanced RCC after at least one VEGFR-TKI therapy. Responders tended to show lower baseline HGF levels ClinicalTrials.gov Identifier: NCT03339219.

Further in vivo antitumor activity was well reported in SCID female mice. Overall, this study suggests that the CNB-PLGA-PSar-NPs are a promising drug delivery system for the treatment of HCC, and further research is needed to investigate their potential in clinical treatment.

Only two therapies showed OS benefit over sorafenib: combined anti-programmed-death and anti-VEGF pathway inhibitor monoclonal antibodies (Anti-PD-(L)1/VEGF Ab), including atezolizumab-bevacizumab and sintilimab-bevacizumab biosimilar (HR = 0.63, 95% CI = 0.53-0.76) and tremelimumab-durvalumab (HR = 0.78, 95% CI = 0.66-0.92)...This NMA supports Anti-PD-(L)1/VEGF Ab as the first-line therapy for aHCC and demonstrates a comparable benefit for tremelimumab-durvalumab which also extends to certain subgroups. Results of the subgroup analysis may guide treatment according to baseline characteristics, while pending further studies.

P1, N=193, Completed, Mirati Therapeutics Inc. | Active, not recruiting --> Completed | Trial completion date: Dec 2022 --> Apr 2022

Sitravatinib with nivolumab had a manageable safety profile. Although ORR was not met, this combination demonstrated antitumor activity and encouraging survival in CPI-experienced patients with non-squamous NSCLC.

Participants with a PD-L1 combined positive score (CPS) ≥5 have numerically higher ORR, PFS, and OS. Cabozantinib plus durvalumab demonstrates a tolerable safety profile and potential efficacy in previously treated advanced pMMR/MSS gastrointestinal malignancies.

P1, N=12, Completed, Dana-Farber Cancer Institute | Active, not recruiting --> Completed

P2, N=22, Recruiting, M.D. Anderson Cancer Center | Trial primary completion date: Dec 2022 --> Dec 2023

P2, N=425, Recruiting, Centre Leon Berard | Trial completion date: Nov 2024 --> Nov 2026 | Trial primary completion date: Feb 2024 --> Feb 2026

ATL-1 can inhibit the malignant evolution of prostate cancer cells by inhibiting Hsp27/eIF4E. ATL-1 also enhanced chemosensitization of cabozantinib in prostate cancer.

Our study reveals the potential therapeutic role of sitravatinib in FLT3 mutant AML and provides an alternative inhibitor for the treatment of AML patients who are resistant to current FLT3 inhibitors.

P2, N=3, Terminated, C. Kent Osborne, MD | N=30 --> 3 | Trial completion date: Feb 2026 --> Jan 2023 | Recruiting --> Terminated | Trial primary completion date: Feb 2024 --> Jan 2023; Terminated by sponsor due to lack of interest