Evidence map›Paper›PMID 17080256›Full record

Trial reportInvestigational new drugs2007

Phase II clinical and pharmacologic study of radiation therapy and carboxyamido-triazole (CAI) in adults with newly diagnosed glioblastoma multiforme.

Tom Mikkelsen, Richard Lush, Stuart A Grossman, Kathryn A Carson, Joy D Fisher, Jane B Alavi, Steve Rosenfeld

Abstract readClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Investigational new drugs, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Talampanel with standard radiation and temozolomide in patients with newly diagnosed glioblastoma: a multicenter phase II trial.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2009
    Trial
  3. Article
  4. Review
  5. Article
  6. Oleanane-Type Triterpene Conjugates with 1Molecules (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. New Directions in Anti-Angiogenic Therapy for Glioblastoma.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  12. Article
  13. Review
  14. Article
  15. Bevacizumab for the treatment of recurrent glioblastoma.Clinical Medicine Insights. Oncology · 2011
    Article
  16. Antiangiogenic therapies for high-grade glioma.Nature reviews. Neurology · 2009
    Review
  17. Association between hyperglycemia and survival in patients with newly diagnosed glioblastoma.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2009
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 6 institutions in 1 country.

Tom MikkelsenDepartment of Neurology, Henry Ford Health System, Detroit, Michigan 48202, USA.
Richard Lush
Stuart A Grossman
Kathryn A Carson
Joy D Fisher
Jane B Alavi
Steve Rosenfeld
Sidney Kimmel Comprehensive Cancer Center · USColumbia University · USHenry Ford Health System · USHospital of the University of Pennsylvania · USJohns Hopkins University · USMoffitt Cancer Center · US

Funding

NEW APPROACHES TO BRAIN TUMOR THERAPY CNS CONSORTIUMU01CA062475 · NCI · JOHNS HOPKINS UNIVERSITY · PI GROSSMAN, STUART A · 1994 to 2008
$5.6M
NCI NIH HHS CA062475NCI NIH HHS U01 CA062475
6 · The paper itself

Abstract

introductionCarboxyamido-triazole (CAI) is a synthetic inhibitor of non-voltage-gated calcium channels that reversibly inhibits angiogenesis, tumor cell proliferation, and metastatic potential. This study examined the efficacy, safety and pharmacokinetics of oral CAI in the treatment of patients with newly diagnosed glioblastoma multiforme (GBM) in an open-label, single arm non-randomized phase 2 trial.

methodsEligible patients with histologically confirmed GBM started CAI therapy (250 mg daily) on the first day of radiation (6000 cGy in 30 fractions) and continued until progression, unless side effects became intolerable. The primary outcome was survival compared to historical controls within the NABTT CNS Consortium database. Secondary outcomes included toxicity and pharmacokinetic parameters.

resultsFifty-five patients were enrolled with a median Karnofsky performance status of 90 and age of 56 years. Forty-six (84%) of these patients had debulking surgeries and 52 have died. The median survival was 10.3 months (95% confidence interval (CI), 8.5-12.8) compared to 12.1 months (95% CI, 10.3-13.3) in the NABTT reference group (p = 0.97). Significant toxicities included 2 incidents of reversible vision loss. The mean CAI plasma concentration for patients taking enzyme inducing antiepileptic drugs (EIAED) was 1.35 +/-1.22 compared to 4.06 +/- 1.50 (p < 0.001) for subjects not taking these agents. Overall survival and grade > or = 3 toxicities were comparable by EIAED status.

conclusionsThis study demonstrated that (1) CAI can be administered safely with concomitant cranial irradiation, (2) the pharmacokinetics of CAI are significantly affected by co-administration of EIAED, and (3) the survival of patients with newly diagnosed GBM was not improved with this novel agent, despite achieving adequate drug levels.

Indexed as

Administration, OralAdultAgedAnticonvulsantsAntineoplastic AgentsBrain NeoplasmsCalcium Channel BlockersCase-Control StudiesChemotherapy, AdjuvantDrug InteractionsGlioblastomaHumansKaplan-Meier EstimateMiddle AgedRadiotherapy, AdjuvantTreatment OutcomeAnticonvulsantsAntineoplastic AgentsCalcium Channel Blockerscarboxyamido-triazoleTriazoles

Identifiers

PMID17080256
PMCPMC3963813
OpenAlexW2082302956

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.