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Adrenal IncidentalomaSERENDIPITYNCT02324647

Structured Evaluation of adRENal Tumors Discovered Incidentally - Prospectively Investigating the Testing Yield

An observational study of Adrenal Incidentaloma and Adrenocortical Carcinoma, run by University Medical Center Groningen at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Standard diagnostic work-up for adrenal incidentalomas (AI) consists of periodical biochemical analysis and CT-scanning in case the initial work-up does not demonstrate the presence of hormonal hypersecretion or adrenocortical carcinoma (ACC), respectively. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
How many people
807 participants
Where
1 siteNetherlands
Study dates
Jan 2015to Jun 2023
How long will I take part?
2 Years
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The research population consists of adult patients with a recently discovered adrenal incidentaloma who meet the selection criteria of SERENDIPITY. A total number of 1000 patients will be included. These subjects will be recruited from the group of patients in whom CT/MRI-scanning has been performed with visualization of the adrenal glands (i.e. CT/MRI scans of abdomen and/or chest, as the latter often include imaging of the upper abdominal region).

Who may be able to join

  • discrete adrenal mass > 1 cm in diameter incidentally discovered during CT/MRI-scanning, performed for reasons other than an evaluation for adrenal disease
  • detection CT/MRI-scan performed ≤ 4 months ago
  • age 18 years or older.

Who cannot join

  • extra-adrenal malignancy (i.e. active or past medical history of malignancy, except for basal cell carcinoma)
  • radiologic diagnosis of simple cyst or bilateral adrenal masses
  • allergy to radiocontrast
  • renal insufficiency (i.e. eGFR < 30 ml/min/1.73m2)
  • pregnancy
  • adrenal incidentaloma visible on previous (i.e. > 4 months ago) CT/MRI-scan
  • inability to understand written Dutch.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • University Medical Center Groningen

    Groningen, Provincie Groningen, 9700 RB

Other trials in Netherlands

About this study

Standard diagnostic work-up for adrenal incidentalomas (AI) consists of periodical biochemical analysis and CT-scanning in case the initial work-up does not demonstrate the presence of hormonal hypersecretion or adrenocortical carcinoma (ACC), respectively. The overall aim of this study is to improve the cost-effectiveness of the diagnostic strategy for AI. Cost-effectiveness of urine steroid profiling (USP) will be compared to the standard diagnostic strategy of repeated CT-imaging.

Read the detailed description

Rationale: Standard diagnostic work-up for adrenal incidentalomas (AI) consists of periodical biochemical analysis and CT-scanning in case the initial work-up does not demonstrate the presence of hormonal hypersecretion or adrenocortical carcinoma (ACC),respectively. With respect to the diagnosis of ACC, the health benefits of this strategy are controversial for the following reasons: a. critical appraisal of literature has revealed a much lower ACC frequency of 1.9% than previously presumed; b. CT sensitivity and specificity are suboptimal; c. risk of unnecessary adrenalectomies; d. exposure to ionising radiation; e. risk of CT contrast reactions (nephropathy, allergic reaction); f. health care related and economical costs. The hypothesis to be tested is that incorporation of a single baseline urinary steroid profiling (USP) into the management algorithm of AI is more cost-effective than a strategy solely based on repeat CT-scanning.

Objective: SERENDIPITY aims to improve the cost-effectiveness of the diagnostic strategy for AI by the application of a single baseline USP. In addition, we aim to examine the psychological impact for patients with AI being currently subjected to repeated laboratory tests and CT-scanning during several years.

Study design: This is a prospective observational multicenter study. Study population: Patients are eligible if they meet the following inclusion criteria: adrenal mass > 1 cm in diameter incidentally discovered during CT or MRI-scanning, performed for reasons other than an evaluation for adrenal disease and age 18 years or older. The exclusion criteria are: extra-adrenal malignancy (i.e. active or past medical history of malignancy, except for basal cell carcinoma), radiologic diagnosis of simple cyst or bilateral adrenal masses, allergy to radiocontrast, renal insufficiency (i.e. eGFR < 30 ml/min/1.73m2), pregnancy or inability to understand written Dutch.

Keywords
Urinary steroid profiling, Adrenal incidentaloma, Adrenocortical carcinoma, cost-effectiveness
Medical subject headings
Adrenal incidentaloma, Adrenocortical Carcinoma

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cost-effectiveness

    difference in cost-effectiveness of the current management strategy based on repeat CT-scanning to detect ACC among patients with an AI compared with a strategy using a single baseline USP

    Measured: 2 years

Secondary outcomes (7)
  1. frequency of ACC among patients with AI at baseline or during follow-up

    Measured: 2 years

  2. determination of the percentage of AI that meets the criteria of a malignant CT- phenotype at baseline or during follow-up

    Measured: 2 years

  3. distribution of pathologic diagnosis in surgically removed adrenal glands

    Measured: 2 years

  4. QoL in patients with an AI at baseline and during follow-up

    Measured: 2 years

  5. frequency distribution between hormonal hypersecreting and non-functional AI

    Measured: 2 years

  6. conversion rate from non-functioning AI towards a hypersecreting AI during follow-up

    Measured: 2 years

  7. costs of diagnostic procedures and surgical interventions

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Dec 2014 (estimated)
  2. Study startJan 2015
  3. Primary completionJun 2023
  4. Study completionJun 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
807 participants (actual)
Target duration
2 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT02324647
Sponsor's protocol ID
UGroningen
Other IDs
4799
Acronym
SERENDIPITY
Status last verified
Jun 2023
First submitted
19 Dec 2014
Last updated
7 Jan 2026
Results posted
No
Data monitoring committee
No
Individual data sharing
Undecided: undecided

Publications

  • Grumbach MM, Biller BM, Braunstein GD, Campbell KK, Carney JA, Godley PA, Harris EL, Lee JK, Oertel YC, Posner MC, Schlechte JA, Wieand HS. Management of the clinically inapparent adrenal mass ("incidentaloma"). Ann Intern Med. 2003 Mar 4;138(5):424-9. doi: 10.7326/0003-4819-138-5-200303040-00013.

    PubMed 12614096
  • Young WF Jr. Clinical practice. The incidentally discovered adrenal mass. N Engl J Med. 2007 Feb 8;356(6):601-10. doi: 10.1056/NEJMcp065470. No abstract available.

    PubMed 17287480
  • Nawar R, Aron D. Adrenal incidentalomas -- a continuing management dilemma. Endocr Relat Cancer. 2005 Sep;12(3):585-98. doi: 10.1677/erc.1.00951.

    PubMed 16172193
  • Kievit J, Haak HR. Diagnosis and treatment of adrenal incidentaloma. A cost-effectiveness analysis. Endocrinol Metab Clin North Am. 2000 Mar;29(1):69-90, viii-ix. doi: 10.1016/s0889-8529(05)70117-1.

    PubMed 10732265
  • Cawood TJ, Hunt PJ, O'Shea D, Cole D, Soule S. Recommended evaluation of adrenal incidentalomas is costly, has high false-positive rates and confers a risk of fatal cancer that is similar to the risk of the adrenal lesion becoming malignant; time for a rethink? Eur J Endocrinol. 2009 Oct;161(4):513-27. doi: 10.1530/EJE-09-0234. Epub 2009 May 13.

    PubMed 19439510
  • Johnson PT, Horton KM, Fishman EK. Adrenal mass imaging with multidetector CT: pathologic conditions, pearls, and pitfalls. Radiographics. 2009 Sep-Oct;29(5):1333-51. doi: 10.1148/rg.295095027.

    PubMed 19755599
  • Wolthers BG, Kraan GP. Clinical applications of gas chromatography and gas chromatography-mass spectrometry of steroids. J Chromatogr A. 1999 May 28;843(1-2):247-74. doi: 10.1016/s0021-9673(99)00153-3.

    PubMed 10399855
  • Grondal S, Eriksson B, Hagenas L, Werner S, Curstedt T. Steroid profile in urine: a useful tool in the diagnosis and follow up of adrenocortical carcinoma. Acta Endocrinol (Copenh). 1990 May;122(5):656-63. doi: 10.1530/acta.0.1220656.

    PubMed 2141212
  • Khorram-Manesh A, Ahlman H, Jansson S, Wangberg B, Nilsson O, Jakobsson CE, Eliasson B, Lindstedt S, Tisell LE. Adrenocortical carcinoma: surgery and mitotane for treatment and steroid profiles for follow-up. World J Surg. 1998 Jun;22(6):605-11; discussion 611-2. doi: 10.1007/s002689900442.

    PubMed 9597936
  • Kikuchi E, Yanaihara H, Nakashima J, Homma K, Ohigashi T, Asakura H, Tachibana M, Shibata H, Saruta T, Murai M. Urinary steroid profile in adrenocortical tumors. Biomed Pharmacother. 2000 Jun;54 Suppl 1:194s-197s. doi: 10.1016/s0753-3322(00)80043-8.

    PubMed 10915023
  • Minowada S, Kinoshita K, Hara M, Isurugi K, Uchikawa T, Niijima T. Measurement of urinary steroid profile in patients with adrenal tumor as a screening method for carcinoma. Endocrinol Jpn. 1985 Feb;32(1):29-37. doi: 10.1507/endocrj1954.32.29.

    PubMed 4017973
  • Brazier J, Roberts J, Deverill M. The estimation of a preference-based measure of health from the SF-36. J Health Econ. 2002 Mar;21(2):271-92. doi: 10.1016/s0167-6296(01)00130-8.

    PubMed 11939242
  • Arnaldi G, Boscaro M. Adrenal incidentaloma. Best Pract Res Clin Endocrinol Metab. 2012 Aug;26(4):405-19. doi: 10.1016/j.beem.2011.12.006. Epub 2012 May 22.

    PubMed 22863384

Questions about this trial

What is this clinical trial studying?

An observational study of Adrenal Incidentaloma and Adrenocortical Carcinoma, run by University Medical Center Groningen at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cost-effectiveness (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02324647, which also lists 13 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jan 2026.

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