Cited by 173Adrenal and Paraganglionic TumorsAdrenal Hormones and DisordersNeuroendocrine Tumor Research Advances

Plasma concentrations of o,p'DDD, o,p'DDA, and o,p'DDE as predictors of tumor response to mitotane in adrenocortical carcinoma: results of a retrospective ENS@T multicenter study

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Hermsen, Ilse G., Fassnacht, Martin, Terzolo, Massimo, Houterman, Saskia, den Hartigh, Jan, Leboulleux, Sophie, Daffara, Fulvia, Berruti, Alfredo +5 more·2011·The Journal of Clinical Endocrinology & Metabolism

Abstract

CONTEXT: In patients with adrenocortical carcinoma (ACC) mitotane activity has been suggested to depend on plasma levels 14 mg/liter or greater and metabolite formation. OBJECTIVE: The study was performed to confirm the correlation of the currently used mitotane (o,p'DDD) threshold of 14 mg/liter with tumor response and to evaluate the additional value of 1,1-(o,p'-dichlorodiphenyl) acetic acid (o,p'DDA) and o,p'DDE (1,1-(o,p'-dichlorodiphenyl)-2,2 dichloroethene) levels for predicting tumor response. SUBJECTS/METHODS: Plasma samples collected within 3 months of best response from 91 patients on mitotane therapy for advanced ACC were analyzed retrospectively. O,p'DDD and metabolites were assessed and related to tumor response and survival. Receiver operating characteristic curves were used. Sensitivity and specificity were calculated for different cutoff levels of o,p'DDD and metabolites. RESULTS: Objective tumor response was observed in 19% of patients. Median o,p'DDD level was higher in responders (P = 0.03). More responders were found among patients achieving o,p'DDD levels 14 mg/liter or greater (P = 0.02). Univariate and multivariate analysis showed significantly longer survival for patients with o,p'DDD levels 14 mg/liter or greater (hazard ratio 0.52, P = 0.04, hazard ratio 0.46, P = 0.03). An o,p'DDD cutoff value of 14 mg/liter was associated with a sensitivity of 65% and specificity 69%. An o,p'DDD level 20 mg/liter or greater or 14 mg/liter or greater combined with o,p'DDA level 92 mg/liter or greater was associated with a specificity of 90 and 92%, respectively. CONCLUSIONS: Our data confirm the value of o,p'DDD plasma monitoring as well as targeting the 14 mg/liter cutoff level in the therapeutic management of ACC patients. Furthermore, our results suggest additional benefit of higher levels of o,p'DDD and combined measurement of o,p'DDD and o,p'DDA.

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Crossref · 10.1210/jc.2010-2676

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  • Most studies, including a large retrospective analysis, have defined the therapeutic mitotane level to be 14 to 20 mg/L.

    “Most studies, including a large retrospective analysis, have defined the therapeutic mitotane level to be 14 to 20 mg/L (296).”

    From Adrenocortical carcinoma (2014) · cites this paper as [296]

  • In Europe, radiotherapy is employed in only 8% of ACC patients.

    “Similarly, in Europe, a recent analysis of the Dutch Adrenal Network Registry found that radiotherapy is employed in only 8% of patients (296).”

    From Adrenocortical carcinoma (2014) · cites this paper as [296]

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Authors
Hermsen, I. G., Fassnacht, M., Terzolo, M., Houterman, S., den Hartigh, J., Leboulleux, S., Daffara, F., Berruti, A., Chadarevian, R., Schlumberger, M., Allolio, B., Haak, H. R., & Baudin, E.
Affiliations
  • Máxima Medisch Centrum (NL)
  • University of Würzburg (DE)
  • University of Turin (IT)
  • Institut Gustave Roussy (FR)
Corresponding author
Hermsen, Ilse G.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2011-06
Volume
96
Issue
6
Pages
1844-1851
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1995124360
Cited by
173
References
36
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 6 · 2022: 10 · 2021: 11 · 2020: 16 · 2019: 12 · 2018: 16 · 2017: 8 · 2016: 15 · 2015: 13 · 2014: 17 · 2013: 14 · 2012: 18
FWCI
17.99
Type
journal article
Language
en
Licence
other-oa
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
  • INFM-OAR (INFN Catania) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Surgery › Adrenal and Paraganglionic Tumors
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Health Sciences › Medicine › Epidemiology › Neuroendocrine Tumor Research Advances
Keywords
adrenocortical carcinoma, mitotane, o,p'-DDE, plasma drug concentration, therapeutic drug monitoring, tumor response prediction, survival, dose-response relationship, cut-off values, predictive biomarkers
MeSH terms
Adrenal Cortex Neoplasms, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Mitotane, Predictive Value of Tests, Retrospective Studies, Sensitivity and Specificity, Adrenocortical Carcinoma, Antineoplastic Agents, Hormonal

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