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DRUG CLASS:

SIRPA antagonist

8d
LM-101, an anti-SIRPα antibody, in patients with relapsed/refractory lymphoma and advanced head and neck cancer: an open-label, multicenter, phase 1 trial. (PubMed, Clin Cancer Res)
LM-101 was well tolerated. The preliminary efficacy signal supports further evaluation of LM-101 plus rituximab in relapsed/refractory lymphoma.
P1 data • Journal
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SIRPA (Signal Regulatory Protein Alpha)
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Rituxan (rituximab) • Loqtorzi (toripalimab-tpzi) • LM-101
13d
RRx-001 inhibits G6PD to deplete NADPH and trigger disulfidptosis coupled with DAMP-mediated immunogenic cell death in hepatocellular carcinoma. (PubMed, Cell Death Discov)
In vivo, RRx-001 significantly inhibits tumor growth, enhances T-cell infiltration, promotes M1 macrophage polarization, downregulates PD-L1 expression, and strengthens anti-tumor immunity through T cell-related pathways. With both metabolic and immunomodulatory effects, RRx-001 provides a basis for novel HCC therapies, and future research could explore its synergistic effects with immune checkpoint inhibitors.
Journal • PD(L)-1 Biomarker • IO biomarker
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CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule) • HMGB1 (High Mobility Group Box 1) • G6PD (Glucose-6-Phosphate Dehydrogenase)
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PD-L1 expression
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nibrozetone (RRx-001)
2ms
Size-Transformable Supramolecular Nanoprodrugs Enable Redox Imbalance Amplification and Cholesterol Modulation to Boost Multidimensional Tumor Immunotherapy. (PubMed, Small)
Nanoprodrugs orchestrate a sophisticated cascade of immune activation through four synergistic mechanisms: 1) size-switchable disassembly upon glutathione/ cholesterol exposure for deep tumor penetration; 2) redox imbalance driven by reactive nitrogen species accumulation and glutathione depletion via the synergistic action of oxaliplatin, ferrocene, and RRx-001 for ferroptosis augmentation; 3) immunogenic cell death induction via ferroptosis-apoptosis to initiate tumor immunity cycle, promoting T cell infiltration; and 4) T cell function reinvigoration with the downregulation of programmed cell death protein 1 and T-cell immunoglobulin 3 expression through cholesterol depletion in TME. This integrated approach achieved primary and distant tumor growth suppression, established durable immune memory against recurrence, and systemically enhanced the antitumor immunity. By concurrently targeting tumor immunogenicity, TME immunosuppression, and T cell exhaustion, this multidimensional strategy represents a transformative advancement in cancer immunotherapy.
Journal • IO biomarker
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PD-1 (Programmed cell death 1)
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oxaliplatin • nibrozetone (RRx-001)
2ms
A multidimensional pan-cancer analysis of CD47 and its role in promoting malignant phenotype in pancreatic adenocarcinoma. (PubMed, Clin Transl Oncol)
In conclusion, this study systematically characterizes the clinical and immunological associations of CD47 across multiple cancers and highlights its potential role in pancreatic adenocarcinoma, supporting the further investigation of CD47 as a therapeutic target.
Journal • IO biomarker • Pan tumor
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CD47 (CD47 Molecule)
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nibrozetone (RRx-001)
2ms
Trial completion
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BI 770371
3ms
Enrollment closed
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SIRPA (Signal Regulatory Protein Alpha)
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ezabenlimab (BI 754091) • BI 765063 • BI 770371
3ms
pH-triggered Mn-ZIF8 nanoreactor enhances tumor immunotherapy by amplifying the cGAS-STING pathway through a self-reinforcing gas-metal synergy strategy. (PubMed, J Nanobiotechnology)
In this study, we propose a Gas-Metal Synergy Strategy, which integrates immune activation and biosafety, by engineering a pH-responsive manganese-based zeolitic imidazolate framework (named MRPH) nanoplatform co-loaded with the nitric oxide (NO) donor RRX-001...Both in vitro and in vivo studies demonstrate that MRPH significantly enhances gas-amplified metalloimmunotherapy. This work pioneers a low-toxicity paradigm that integrates gas therapy and metal-based immunotherapy, offering a transformative approach to solid tumor immunotherapy.
Journal
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CD8 (cluster of differentiation 8)
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nibrozetone (RRx-001)
4ms
Phase 1 Study Evaluating the Safety and PK of ADU-1805 in Advanced Solid Tumors (clinicaltrials.gov)
P1, N=130, Recruiting, Sairopa B.V. | N=90 --> 130 | Trial completion date: Dec 2025 --> Jul 2027 | Trial primary completion date: Dec 2025 --> May 2027
Enrollment change • Trial completion date • Trial primary completion date
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Keytruda (pembrolizumab) • ADU-1805
4ms
TQB2928-ALTN-Ib-01: TQB2928 Injection Combined Anlotinib Hydrochloride Capsule in Recurrent/Metastatic Osteosarcoma and Other Solid Tumors (clinicaltrials.gov)
P1, N=20, Terminated, Chia Tai Tianqing Pharmaceutical Group Nanjing Shunxin Pharmaceutical Co., Ltd. | N=43 --> 20 | Trial completion date: Feb 2026 --> Jun 2025 | Recruiting --> Terminated | Trial primary completion date: Oct 2025 --> Jun 2025; This study was closed due to business reasons. Closure was not prompted by any safety or efficacy concerns.
Enrollment change • Trial completion date • Trial termination • Trial primary completion date
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Focus V (anlotinib)
5ms
A Study to Test Whether Treatment With BI 770371 in Combination With Pembrolizumab With or Without Cetuximab Helps People With Head and Neck Cancer Compared With Pembrolizumab Alone (clinicaltrials.gov)
P1, N=90, Recruiting, Boehringer Ingelheim | Trial completion date: Mar 2028 --> Jul 2027 | Trial primary completion date: Jul 2027 --> Oct 2026
Trial completion date • Trial primary completion date
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Keytruda (pembrolizumab) • Erbitux (cetuximab) • BI 770371
7ms
A Study to Assess the Effect of CC-95251 in Participants With Acute Myeloid Leukemia and Myelodysplastic Syndromes (clinicaltrials.gov)
P1, N=56, Terminated, Bristol-Myers Squibb | Completed --> Terminated; Business objectives have changed
Trial termination
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Venclexta (venetoclax) • azacitidine • anzurstobart (BMS-986351)
7ms
Dual STING activation and CD47/SIRPα blockade via chitooligosaccharide-based nanoparticles to amplify antitumor immunity. (PubMed, J Control Release)
To further counter immune evasion, we encapsulated the CD47/SIRPα inhibitor RRX-001 into reactive oxygen species (ROS)-responsive carriers, yielding RRX@RCD...In CT26 tumor-bearing mice, RRX@RCD achieved superior tumor regression, doubled median survival. Overall, RRX@RCD synchronizes innate and adaptive immune activation, offering a safe and potent nanomedicine strategy for durable antitumor immunity.
Journal • IO biomarker
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CD8 (cluster of differentiation 8) • CXCL10 (Chemokine (C-X-C motif) ligand 10) • STING (stimulator of interferon response cGAMP interactor 1) • SIRPA (Signal Regulatory Protein Alpha)
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nibrozetone (RRx-001)