Heart and metabolic problems in people with hormone-silent pheochromocytoma and paraganglioma
Looks at heart and metabolic complications before and after surgery in adults with these tumors.
Plain-language title generated from the registry record
Registry title: Multicenter Study on Cardiovascular and Metabolic Complications in Patients With Biochemically Silent Pheochromocytomas and Paragangliomas
Key facts
- Where
- Athens, GreeceSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with a pheochromocytoma or paraganglioma (a rare tumour) who have no symptoms and normal hormone levels in blood or urine.
- Age
- 18 years or older
- Sex
- All sexes can join.
- Disease stage
- Pheochromocytoma or paraganglioma with no symptoms. It is confirmed by tissue examination after surgery, or by specific imaging scans (MIBG, 68Ga DOTATATE, Octreoscan, Tektrotyde) if not operated.
- Biomarker or test result
- Levels of catecholamines, normetanephrines, metanephrines and methoxytyramine (for paraganglioma) in blood or urine, measured with LC-MS, must be below the upper normal value.
Main reasons for not taking part
- Unclear diagnosis: no tissue report and non-specific imaging findings
- Catecholamine, normetanephrine or metanephrine levels above the upper limit (methoxytyramine too, for paraganglioma)
- No data on the required heart or metabolic measurements
Read by machine on 12 November 2026.
Where in Greece
- NKUAAthens, GreeceNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Laikο General Hospital, Athens
- Trial code
- NCT07316075
- Record updated
- 5 January 2026
- Original description
The aim of the study is to characterise the cardiovascular and metabolic complications pre- and post-surgery of patients with biochemically negative PPGL and to compare them with normal individuals and patients with secreting PPGLs age and sex matched.Read full original descriptionShow less
Multicenter Study on Cardiovascular and Metabolic Complications in Patients With Biochemically Silent Pheochromocytomas and Paragangliomas
The aim of the study is to characterise the cardiovascular and metabolic complications pre- and post-surgery of patients with biochemically negative PPGL and to compare them with normal individuals and patients with secreting PPGLs age and sex matched.
Inclusion: All PHEOs/PGLs patients should be asymptomatic, with confirmed histopathological analysis for those who had surgery or with positive specific imaging functional studies (MIBG, 68Ga DOTATATE, Octreoscan, Tektrotyde); Data about the plasma or urine levels of catecholamines, normetanephrines, metanephrines and methoxytyramine (for PGL) levels should be available for every patient and should be lower than the upper normal values measured with LC-MS (supplementary data about CgA, NSE levels can be also included); Available data for the "required" cardiovascular paraclinical or metabolic parameters should be available pre-surgery or at the time of diagnosis or at follow-up for the "not operable" tumors as well as post any treatment.
Exclusion: Patients with ambiguous diagnosis of PHEOs/PGLs (absence of histological report and non-specific imaging findings); Catecholamines, normetanephrines and metanephrines (and methoxytyramine levels for PGL) levels higher than the upper limit range; No available data of the required parameters.