Trial reportNature communications2026
Motixafortide, cemiplimab, gemcitabine and nab-paclitaxel in metastatic pancreatic cancer: a single-arm phase 2 study with single-cell correlatives.
Trial report in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04543071 (A Phase 2 Study With Combination Chemotherapy), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase 2 Study With Combination Chemotherapy (Gemcitabine and Nab-Paclitaxel), Chemokine (C-X-C) Motif Receptor 4 Inhibitor (BL-8040), and Immune Checkpoint Blockade (Cemiplimab) in METastatic Treatment naïve PANCreas Adenocarcinoma
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Authors and funding
36 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The C-X-C motif chemokine receptor 4 (CXCR4)/C-X-C motif chemokine ligand 12 (CXCL12) axis drives immune exclusion in pancreatic ductal adenocarcinoma (PDA). Building on our preclinical data, we conducted the first stage of an open-label, single-arm phase 2 clinical trial combining CXCR4 inhibition (motixafortide), PD-1 blockade (cemiplimab), and chemotherapy (gemcitabine/nab-paclitaxel [GN]; MCGN) in 11 treatment-naïve patients with metastatic PDA ( NCT04543071 ). The primary endpoint, objective response rate, was 64% partial response and 55% confirmed partial response per Response Evaluation Criteria in Solid Tumors. Secondary endpoints include median progression-free survival of 9.7 months (95% confidence interval [CI]: 5.9-not reached [NR]), overall survival of 10.1 months (95% CI: 9.3-NR), duration of response of 8.2 months, and 91% disease control rate. One patient achieved a pathological complete response after pancreatoduodenectomy and hepatectomy, remaining disease-free for 18 months without adjuvant therapy. Exploratory single-nucleus RNA-sequencing of serial biopsies showed reduced tumor heterogeneity, depletion of epithelial-to-mesenchymal transitional states, and enrichment of CXCL12+ cancer-associated fibroblasts in responders relative to resistant patients. MCGN also induced tumor inflammation as confirmed by tissue staining and T cell rescue. A multicenter randomized phase 2 trial comparing MCGN to GN in patients with treatment-naïve metastatic PDA is ongoing.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.