68Ga-Pentixafor PET/CT for the Subtyping Diagnosis of Primary Aldosteronism

July 13, 2022 updated by: Qifu Li

68Ga-Pentixafor PET/CT for the Subtyping Diagnosis of Primary Aldosteronism: A Prospective Diagnostic Accuracy Study

To evaluate the value of 68Ga-Pentixafor PET/CT in the diagnosis of primary aldosteronism subtype

Study Overview

Status

Completed

Detailed Description

This is a prospective study. We will enroll 100 patients with definite diagnosis of PA using adrenal venous sampling(AVS) as the gold standard for subtype to evaluate the value of 68Ga-pentixaforPET/CT in the diagnosis of PA.

Study Type

Observational

Enrollment (Actual)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Chongqing
      • Chongqing, Chongqing, China, 400016
        • The First Affilated Hospital of Chongqing Medical University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Power Analysis and Sample Size software 11 (PASS 11) was used to calculate the sample size. A sample of 40 from the positive group (i.e. UPA group) and 60 from the negative group (i.e. BPA group) achieves 84% power to detect a difference of 0·15 between the area under the receiver-operator characteristics curve (AUC) under the null hypothesis of 0·70 and an AUC under the alternative hypothesis of 0·85 using a two-sided z-test at a significance level of 0·05.

Description

Inclusion Criteria:

  1. PA diagnosis confirmed by at least one confirmatory test
  2. willingness to undergo AVS and surgery
  3. informed consent to participate in the study.

Exclusion Criteria:

  1. PA patients who met guideline criteria for bypassing AVS [i.e. younger than 35 years old, with typical APA characteristics (plasma aldosterone >300pg/ml, plasma renin < 2·5mIU/l, serum potassium <3·5mmol/l, CT indicated unilateral 1cm low-density adenoma);
  2. failed adrenal vein cannulation during AVS;
  3. Subtyping diagnosis was inconclusive based on AVS results (e.g. aldosterone/cortisol ratio in bilateral adrenal veins lower than the peripheral vein, or missing data);
  4. pregnant or lactating women;
  5. patients with a history of uncontrolled malignant tumor;
  6. concurrent Cushing's syndrome [including mild autonomous cortisol secretion: cortisol after 1mg dexamethasone suppression test (DST)>138 nmol/l or cortisol after 2mg DST >50 nmol/l or cortisol after 1mg DST 50-138 nmol/l plus adrenocorticotrophic hormone (ACTH)<10pg/ml;
  7. diagnosis of familial hyperaldosteronism;
  8. imaging characteristics suggestive of pheochromocytoma or adrenal cortical carcinoma;
  9. unsuitable for surgery, such as heart failure with New York Heart Association (NYHA) class III or IV, severe anemia (Hemoglobin<60g/L), stroke or acute coronary syndrome within 3 months, severe ascites and cirrhosis, estimated glomerulus filtration rate<30ml/min/m;
  10. alcohol or drug abuse and mental disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
unilateral primary aldosteronism(UPA)
PA confirmatory tests was positive; successful intubation (SI ≥ 3) and LI ≥ 4; If LI between 2 and 4, should be combined with contralateral inhibition index < 1 or CT indicate typical adenomas on the dominant side.
68Ga-Pentixafor PET/CT imaging
bilateral adrenal hyperplasia(BAH)
PA confirmatory tests was positive; successful intubation (SI ≥ 3) and LI < 2; or LI between 2 and 4 but does not meet the UPA conditions
68Ga-Pentixafor PET/CT imaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
accuracy of 68Ga-PentixaforPET/CT in subtyping diagnosis of PA
Time Frame: at the end of study(the last enrolled patient completed a 3-month follow-up)
AUC
at the end of study(the last enrolled patient completed a 3-month follow-up)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 11, 2021

Primary Completion (Actual)

May 1, 2022

Study Completion (Actual)

May 31, 2022

Study Registration Dates

First Submitted

November 11, 2021

First Submitted That Met QC Criteria

November 11, 2021

First Posted (Actual)

November 23, 2021

Study Record Updates

Last Update Posted (Actual)

July 15, 2022

Last Update Submitted That Met QC Criteria

July 13, 2022

Last Verified

July 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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