Trial reportInvestigational new drugs2003
Phase II study of XR5000 (DACA), an inhibitor of topoisomerase I and II, administered as a 120-h infusion in patients with advanced ovarian cancer.
Trial report in Investigational new drugs, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed, 23 citations in OpenAlex.
- Acridine Derivatives as Inhibitors of the IRE1α-XBP1 Pathway Are Cytotoxic to Human Multiple Myeloma.Molecular cancer therapeutics · 2016Article
- Why are we failing to implement imaging studies with radiolabelled new molecular entities in early oncology drug development?TheScientificWorldJournal · 2014Review
- Identification of a novel topoisomerase inhibitor effective in cells overexpressing drug efflux transporters.PloS one · 2009Article
- The role of topoisomerases and RNA transcription in the action of the antitumour benzonaphthyridine derivative SN 28049.Cancer chemotherapy and pharmacology · 2008Article
- mAMSA resistant human topoisomerase IIbeta mutation G465D has reduced ATP hydrolysis activity.Nucleic acids research · 2006Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 6 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundXR5000 is a tricyclic carboxamide-based cytotoxic agent that binds to DNA by intercalation and stimulates DNA cleavage by inhibition of both topoisomerase I and II. The aim of the present study was to evaluate the antitumoral activity and safety profile of XR5000 given as second-line chemotherapy in patients with ovarian cancer who had relapsed within 1 year after first-line chemotherapy with taxanes and platinum for advanced disease. PATIENTS AND
methodsPatients received XR5000 at the dose of 3010 mg/m(2) through a 120-h central venous infusion every 3 weeks. Toxicity was graded according to the Common Toxicity Criteria (CTC), version 2.0. An independent panel assessed response every two cycles according to the World Health Organization (WHO) criteria. Gehan's rule was used for sample size determination.
resultsSixteen patients were enrolled; one patient was ineligible because of prior melphalan single agent treatment. Eastern Cooperative Oncology Group (ECOG) performance status was 0 (eight patients), 1 (five patients), or 2 (two patients). The 15 eligible patients received 43 cycles of XR5000 (median 2, range 1-8). Hematological toxicity was mild with only one grade 3 anemia in one patient. Other drug-related toxicities never exceeded grade 3 and included fatigue (four patients), thrombosis (one patient), nausea (one patient), stomatitis (one patient) as well as dyspnea/cough (one patient). One patient who had refused further therapy and controls after the first cycle was not assessable for response evaluation. No objective responses were observed. Four patients experienced stable disease and 10 patients progressive disease. The median time to progression was 42 days (CI 95% 40; 54).
conclusionsThe complete lack of any objective response does not justify further evaluation of XR5000 in patients with advanced ovarian cancer using this dose and schedule, although the therapy was generally well tolerated.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.