Evidence map›Paper›PMID 32045360›Full record

ArticleEuropean journal of endocrinology2020

Abiraterone acetate treatment lowers 11-oxygenated androgens.

Connor Wright, Patrick O'Day, Mohammed Alyamani, Nima Sharifi, Richard J Auchus

Open access · greenAbstract read
In one paragraph

Article in European journal of endocrinology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Increases in fecal testosterone precede increases in fecal dehydroepiandrosterone in wild male mountain gorillas (Gorilla beringei beringei).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
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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

5 authors at 2 institutions in 3 countries.

Connor WrightDivision of Metabolism, Diabetes, and Endocrinology, Department of Internal Medicine.
Patrick O'DayDivision of Metabolism, Diabetes, and Endocrinology, Department of Internal Medicine.
Mohammed AlyamaniGenitourinary Malignancies Research Center, Lerner Research Institute.
Nima SharifiGenitourinary Malignancies Research Center, Lerner Research Institute.
Richard J AuchusDivision of Metabolism, Diabetes, and Endocrinology, Department of Internal Medicine.
Diabetes Australia · AUCerner (United States) · US

Funding

MICHIGAN INSTITUTE FOR CLINICAL AND HEALTH RESEARCH (MICHR) (UL1): (BPCA)UL1RR024986 · NCRR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SHANLEY, THOMAS P. · 2007 to 2011
$51.2M
Elucidating a novel molecular biomarker for castration-resistant prostate cancerR01CA172382 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI Nima Sharifi · 2012 to 2026
$5.2M
Activation of androgen biosynthesis and drug metabolism by cytochrome b5R01GM086596 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI RICHARD J. AUCHUS · 2009 to 2026
$4.8M
Compensatory steroidogenesis mechanisms in castration-resistant prostate cancerR01CA190289 · NCI · CLEVELAND CLINIC LERNER COM-CWRU · PI SHARIFI, NIMA · 2015 to 2019
$2.1M
NCI NIH HHS R01 CA172382NCI NIH HHS R01 CA190289NCRR NIH HHS UL1 RR024986NIGMS NIH HHS R01 GM086596
6 · The paper itself

Abstract

contextThe human adrenal is the dominant source of androgens in castration-resistant prostate cancer (CRPC) and classic 21-hydroxylase deficiency (21OHD). Abiraterone, derived from the prodrug abiraterone acetate (AA), inhibits the activity of cytochrome P450 17-hydroxylase/17,20-lyase (CYP17A1), the enzyme required for all androgen biosynthesis. AA treatment effectively lowers testosterone and androstenedione in 21OHD and CRPC patients. The 11-oxygenated androgens are major adrenal-derived androgens, yet little is known regarding the effects of AA administration on 11-oxygenated androgens.

objectiveTo test the hypothesis that AA therapy decreases 11-oxygenated androgens.

designSamples were obtained from 21OHD or CRPC participants in AA or AA plus prednisone (AAP)-treatment studies, respectively.

methodsWe employed liquid chromatography-tandem mass spectrometry (LC-MS/MS) to measure the 11-oxygenated androgens, 11β-hydroxyandrostenedione, 11-ketoandrostenedione, 11β-hydroxytestosterone, and 11-ketotestosterone, in plasma or serum samples from six 21OHD and six CRPC patients before and after treatment with AA or AAP, respectively.

resultsIn CRPC patients, administration of AAP (1000 mg/day AA with prednisone and medical castration) lowered all four 11-oxygenated androgens to below the lower limits of quantitation (<0.1-0.3 nmol/L), equivalent to 64-94% reductions from baseline. In 21OHD patients, administration of AA (100-250 mg/day for 6 days) reduced all 11-oxygenated androgens by on average 56-77% from baseline.

conclusionsWe conclude that AA and AAP therapies markedly reduce the production of the adrenal-derived 11-oxygenated androgens, both in patients with high (21OHD) or normal (CRPC) 11-oxygenated androgens at baseline, respectively. Reduction of 11-oxygenated androgens is an important aspect of AA and AAP pharmacology.

Indexed as

Abiraterone AcetateAdrenal Hyperplasia, CongenitalAdultAndrogensAndrostenesChromatography, LiquidCytochrome P-450 Enzyme InhibitorsDrug Therapy, CombinationHumansMalePrednisoneProstatic NeoplasmsTandem Mass SpectrometryTestosteroneabirateroneAbiraterone AcetateAndrogensAndrostenesCytochrome P-450 Enzyme InhibitorsPrednisoneTestosterone

Identifiers

PMID32045360
PMCPMC7096060
OpenAlexW3006285711

What OpenQuestion holds

Textmetadata
LicenceTDM
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.