^
    2d
    Metabolism, Excretion, and Mass Balance Study of Quemliclustat in Healthy Adult Participants (ARC-24) (clinicaltrials.gov)
    P1, N=8, Active, not recruiting, Arcus Biosciences, Inc. | Recruiting --> Active, not recruiting
    Enrollment closed
    |
    quemliclustat (AB680)
    2d
    A Phase Ib/II Clinical Study on AK112 Combined or Not Combined With AK119 in pMMR/MSS Colorectal Cancer (clinicaltrials.gov)
    P1/2, N=170, Active, not recruiting, Akeso | Recruiting --> Active, not recruiting
    Enrollment closed • pMMR
    |
    MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2)
    |
    5-fluorouracil • oxaliplatin • irinotecan • leucovorin calcium • Yidafan (ivonescimab) • drebuxelimab (AK119)
    24d
    Metabolism, Excretion, and Mass Balance Study of Quemliclustat in Healthy Adult Participants (ARC-24) (clinicaltrials.gov)
    P1, N=8, Recruiting, Arcus Biosciences, Inc. | Not yet recruiting --> Recruiting
    Enrollment open
    |
    quemliclustat (AB680)
    1m
    A Study to Compare Uliledlimab Combined With Toripalimab, Toripalimab Monotherapy, and Pembrolizumab Monotherapy in Patients With Previously Untreated Locally Advanced Unresectable or Metastatic PD-L1- and CD73- Selected Non-Small Cell Lung Cancer (clinicaltrials.gov)
    P2/3, N=450, Active, not recruiting, TJ Biopharma Co., Ltd. | Recruiting --> Active, not recruiting
    Enrollment closed
    |
    PD-L1 (Programmed death ligand 1) • BRAF (B-raf proto-oncogene) • CD73 (5'-Nucleotidase Ecto) • NT5E (5'-Nucleotidase Ecto)
    |
    PD-L1 expression
    |
    PD-L1 IHC 22C3 pharmDx
    |
    Keytruda (pembrolizumab) • Loqtorzi (toripalimab-tpzi) • uliledlimab (TJD5)
    1m
    A Study to Compare Uliledlimab Combined With Sintilimab and Chemotherapy Versus Sintilimab Combined With Chemotherapy in Patients With Previously Untreated Locally Advanced Unresectable or Metastatic Non-small Cell Lung Cancer (clinicaltrials.gov)
    P2, N=150, Active, not recruiting, TJ Biopharma Co., Ltd. | Recruiting --> Active, not recruiting
    Enrollment closed
    |
    PD-L1 (Programmed death ligand 1) • CD73 (5'-Nucleotidase Ecto) • NT5E (5'-Nucleotidase Ecto)
    |
    PD-L1 expression
    |
    PD-L1 IHC 22C3 pharmDx
    |
    cisplatin • carboplatin • gemcitabine • Tyvyt (sintilimab) • pemetrexed • uliledlimab (TJD5)
    1m
    Metabolism, Excretion, and Mass Balance Study of Quemliclustat in Healthy Adult Participants (ARC-24) (clinicaltrials.gov)
    P1, N=8, Not yet recruiting, Arcus Biosciences, Inc.
    New P1 trial
    |
    quemliclustat (AB680)
    2ms
    Zimberelimab and Quemliclustat in Combination With Chemotherapy for the Treatment of Patients With Borderline Resectable and Locally Advanced Pancreatic Adenocarcinoma (clinicaltrials.gov)
    P1/2, N=56, Recruiting, Jonsson Comprehensive Cancer Center | Trial completion date: Mar 2026 --> Mar 2027 | Trial primary completion date: Dec 2025 --> Dec 2026
    Trial completion date • Trial primary completion date
    |
    oxaliplatin • irinotecan • Yutuo (zimberelimab) • leucovorin calcium • fluorouracil topical • quemliclustat (AB680)
    2ms
    Potent Competitive Inhibitors of Ecto-5'-nucleotidase (CD73) based on 6‑(Het)aryl-7-deazapurine Ribonucleoside 5'‑O‑Bisphosphonates. (PubMed, ACS Pharmacol Transl Sci)
    They effectively suppressed adenosine formation in MDA-MB-231 cells, rescued CD8+ T cell activation, and were nontoxic to human fibroblasts. Overall, their profile compares favorably with AB680, a CD73 inhibitor currently in phase I/II clinical trials.
    Journal
    |
    CD8 (cluster of differentiation 8) • CD73 (5'-Nucleotidase Ecto) • ENTPD1 (Ectonucleoside Triphosphate Diphosphohydrolase 1)
    |
    quemliclustat (AB680)
    2ms
    Design, engineering, and functional evaluation of nanobody-based anti-CD73 for immunogenic cell death induction in chemoresistant colorectal Cancer cell line. (PubMed, Int Immunopharmacol)
    HeLiNa-73 combines CD73 inhibition with ICD induction, thereby overcoming adenosine-mediated immune suppression while enhancing tumor immunogenicity. These in vitro findings highlight HeLiNa-73 as a next-generation nanobody-based candidate for in vivo chemoresistant CRC studies and to synergize with checkpoint blockade.
    Preclinical • Journal
    |
    HMGB1 (High Mobility Group Box 1) • CALR (Calreticulin) • CD80 (CD80 Molecule) • CD86 (CD86 Molecule)
    |
    IPH5301
    2ms
    Sym024 interacts with a unique epitope on the CD73 homodimer, favoring effective bivalent binding to improve anti-PD1 therapy. (PubMed, Clin Cancer Res)
    The comprehensive CD73 inhibition exhibited by Sym024 may improve the efficacy of anti-PD(L)-1/anti-CD73 combination treatment.
    Journal • PD(L)-1 Biomarker • IO biomarker
    |
    CD73 (5'-Nucleotidase Ecto)
    |
    S95024
    2ms
    KEYNOTE-E58: JAB-BX102 Monotherapy and Combination With Pembrolizumab in Adult Patients With Advanced Solid Tumors (clinicaltrials.gov)
    P1/2, N=21, Completed, Jacobio Pharmaceuticals Co., Ltd. | Recruiting --> Completed | N=62 --> 21 | Trial completion date: Mar 2026 --> May 2025 | Trial primary completion date: Mar 2024 --> May 2025
    Trial completion • Enrollment change • Trial completion date • Trial primary completion date
    |
    Keytruda (pembrolizumab)
    2ms
    A Study of AP601 in Patients With Locally Unresectable Advanced or Metastatic Solid Tumors (clinicaltrials.gov)
    P1, N=36, Recruiting, AP Biosciences Inc. | Not yet recruiting --> Recruiting | Initiation date: Sep 2025 --> Jan 2026
    Enrollment open • Trial initiation date