ArticleClinical cancer research : an official journal of the American Association for Cancer Research2026
Cergutuzumab Amunaleukin in Combination with Atezolizumab in Patients with Carcinoembryonic Antigen-Positive Advanced/Metastatic Solid Tumors.
Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02350673 (A Phase 1b, Open-Label, Multi-Center, Dose Escalation Study of the Safety, Pharmacokinetics, and Therapeutic Activity of Cergutuzumab Amunaleukin, an Immunocytokine, Which Consists of a Variant of Interleukin 2), which is not on this map. Cited by 1 paper.
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A Phase 1b, Open-Label, Multi-Center, Dose Escalation Study of the Safety, Pharmacokinetics, and Therapeutic Activity of Cergutuzumab Amunaleukin, an Immunocytokine, Which Consists of a Variant of Interleukin 2 (IL 2v), That Targets Carcinoembryonic Antigen (CEA), and Atezolizumab, an Antibody That Targets Programmed Death-Ligand 1 (PD-L1), Administered Intravenously, in Patients With Locally Advanced and/or Metastatic Solid Tumors
Who cites it
1 citing paper in PubMed.
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Authors and funding
25 authors.
Funding
Abstract
purposeCergutuzumab amunaleukin (CA) is an immunocytokine comprising a variant form of interleukin 2 (IL2) [constructed to avoid CD25 binding and regulatory T-cell (Treg) stimulation] fused to a carcinoembryonic antigen (CEA)-targeted antibody. This phase Ib open-label, multicenter dose-escalation and -expansion study (NCT02350673) evaluated the safety, activity, pharmacokinetics, and pharmacodynamics of CA plus atezolizumab in patients with advanced/metastatic CEA-positive solid tumors. PATIENTS AND
methodsPatients received escalating doses of CA (6-20/25 mg) with fixed dosages of atezolizumab (840 mg) every 2 weeks or escalating dosages of CA weekly (10-15/20 mg) with fixed dosages of atezolizumab (1,200 mg) every 3 weeks. Primary objectives include maximum tolerated dose (MTD), recommended dose for expansion (RDE), and safety.
resultsTwenty-four patients were randomized to receive CA plus atezolizumab every 2 weeks and 45 patients to CA weekly plus atezolizumab every 3 weeks. A subgroup of patients (n = 5) received obinutuzumab before treatment to study the prevention of antidrug antibodies. The MTD was not determined; 15 mg weekly or 20 mg every 2 weeks of CA plus atezolizumab was the RDE. The safety profile was consistent with CA monotherapy and atezolizumab-based therapies. The addition of atezolizumab did not affect the pharmacokinetic profile of CA, and treatment induced the proliferation of T and NK cells in the blood without Treg expansion. Increases in pharmacodynamic markers (C-reactive protein, lymphocytes, sCD25, and cytokines) suggested immune activation despite limited antitumor activity (overall response rate: 13.5% with weekly/every-3-week regimen).
conclusionsThe safety profile of this combination was manageable. Prominent pharmacodynamic effects were elucidated; antitumor activity was limited.
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