Trial reportJournal for immunotherapy of cancer2021
Multicenter phase II trial (SWOG S1609, cohort 51) of ipilimumab and nivolumab in metastatic or unresectable angiosarcoma: a substudy of dual anti-CTLA-4 and anti-PD-1 blockade in rare tumors (DART).
Trial report in Journal for immunotherapy of cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02834013 (DART), which is not on this map. Cited by 101 papers.
What it found
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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.
DART: Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors
Who cites it
101 citing papers in PubMed, 151 citations in OpenAlex.
- Multicenter phase II trial of ipilimumab and nivolumab in metastatic or unresectable perivascular epithelioid cell tumor (PEComa): a substudy ofJournal for immunotherapy of cancer · 2025Trial
- Cemiplimab in Locally Advanced or Metastatic Secondary Angiosarcomas (CEMangio): A Phase II Clinical Trial and Biomarker Analyses.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Trial
- A phase II basket trial of dual anti-CTLA-4 and anti-PD-1 blockade in rare tumors (DART) SWOG S1609: durable responses and delayed pseudoprogression in small cell carcinoma of the ovary, hypercalcemic type cohort.Cancer communications (London, England) · 2025Trial
- A Single-Arm Phase 2 Trial of Doxorubicin Plus Zalifrelimab (Anti-CTLA-4 Antibody) and Balstilimab (Anti-PD-1 Antibody) in Advanced/Metastatic Soft Tissue Sarcomas.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Trial
- Phase II basket trial of Dual Anti-CTLA-4 and anti-PD-1 blockade in Rare Tumors (DART) SWOG S1609: pancreatic neuroendocrine neoplasm (PNEN) cohort.Journal for immunotherapy of cancer · 2025Trial
- A Phase II Basket Trial of Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors SWOG S1609: Vulvar Cancers.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Trial
- SWOG/NCI Phase II Dual Anti-CTLA-4/PD-1 Blockade in Rare Tumors: Nonepithelial Ovarian Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- A multicenter, randomized, non-comparative, phase II study of nivolumab ± ipilimumab for patients with metastatic sarcoma (Alliance A091401): expansion cohorts and correlative analyses.Journal for immunotherapy of cancer · 2024Trial
- Phase II basket trial of dual anti-CTLA-4 and anti-PD-1 blockade in rare tumors (DART) SWOG S1609: the desmoid tumors.Journal for immunotherapy of cancer · 2024Trial
- Phase II basket trial of Dual Anti-CTLA-4 and Anti-PD-1 blockade in Rare Tumors (DART) SWOG S1609: adrenocortical carcinoma cohort.Journal for immunotherapy of cancer · 2024Trial
- Phase II Study of Eribulin plus Pembrolizumab in Metastatic Soft-tissue Sarcomas: Clinical Outcomes and Biological Correlates.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- A Phase II Basket Trial of Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors (DART SWOG 1609 Cohort 47) in Patients with Gestational Trophoblastic Neoplasia.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- Trial
- A Phase 1/2 Trial Combining Avelumab and Trabectedin for Advanced Liposarcoma and Leiomyosarcoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2022Trial
- A Multicenter Phase II Trial of Ipilimumab and Nivolumab in Unresectable or Metastatic Metaplastic Breast Cancer: Cohort 36 of Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors (DART, SWOG S1609).Clinical cancer research : an official journal of the American Association for Cancer Research · 2022Trial
- The promise of immunotherapy in the treatment of sarcoma: A state-of-the-art review of practice changing research and future directions.Human vaccines & immunotherapeutics · 2026Review
- Tumour-agnostic immunotherapy: aligning biological rationale, biomarker precision, and real-world implementation.EClinicalMedicine · 2026Review
- Complete response of extensive cutaneous angiosarcoma of the scalp after PD1 immunotherapy combined with radiotherapy: A report of 2 cases.JAAD case reports · 2026Article
- Real-world experience with ipilimumab in combination with nivolumab in advanced sarcoma: a retrospective analysis including ultra-rare sarcomas.The oncologist · 2026Article
- Angiosarcoma Presenting as a Chronic Non-Healing Lower Extremity Ulcer in Lymphoedema: A Challenge.International wound journal · 2026Article
41 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors at 15 institutions in 1 country.
Funding
Abstract
purposeAngiosarcoma is a rare aggressive endothelial cell cancer with high mortality. Isolated reports suggest immune checkpoint inhibition efficacy in angiosarcoma, but no prospective studies have been published. We report results for angiosarcoma treated with ipilimumab and nivolumab as a cohort of an ongoing rare cancer study.
methodsThis is a prospective, open-label, multicenter phase II clinical trial of ipilimumab (1 mg/kg intravenously every 6 weeks) plus nivolumab (240 mg intravenously every 2 weeks) for metastatic or unresectable angiosarcoma. Primary endpoint was objective response rate (ORR) per RECIST 1.1. Secondary endpoints include progression-free (PFS) and overall survival, and toxicity. A two-stage design was used.
resultsOverall, there were 16 evaluable patients. Median age was 68 years (range, 25-81); median number of prior lines of therapy, 2. Nine patients had cutaneous and seven non-cutaneous primary tumors. ORR was 25% (4/16). Sixty per cent of patients (3/5) with primary cutaneous scalp or face tumors attained a confirmed response. Six-month PFS was 38%. Altogether, 75% of patients experienced an adverse event (AE) (at least possibly related to drug) (25% grade 3-4 AE); 68.8%, an immune-related AE (irAE) (2 (12.5%), grade 3 or 4 irAEs (alanine aminotransferase/aspartate aminotransferase increase and diarrhea)). There were no grade 5 toxicities. One of seven patients in whom tumor mutation burden (TMB) was assessed showed a high TMB (24 mutations/mb); that patient achieved a partial response (PR). Two of three patients with PDL1 immunohistochemistry assessed had high PDL1 expression; one achieved a PR.
conclusionThe combination of ipilimumab and nivolumab demonstrated an ORR of 25% in angiosarcoma, with three of five patients with cutaneous tumors of the scalp or face responding. Ipilimumab and nivolumab warrant further investigation in angiosarcoma. TRIAL REGISTRATION NUMBER: NCT02834013.
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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 OpenQuestion graph.