Assessing blood sugar control after parathyroid surgery in diabetes patients

Evaluation of Glycemic Control and Changes in Skeletal Profile in Patients With Type II Diabetes Undergoing Parathyroidectomy for Primary Hyperparathyroidism

Observational The Cleveland Clinic · NCT05761743

This study is testing whether having parathyroid surgery can help improve blood sugar control in adults with type 2 diabetes and high parathyroid hormone levels.

Quick facts

Study typeObservational
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorThe Cleveland Clinic Academic / other
Locations1 site (Cleveland, Ohio)
Trial IDNCT05761743 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate the effects of parathyroidectomy on glycemic control in patients suffering from primary hyperparathyroidism and type 2 diabetes mellitus. It will involve two groups: one undergoing surgery and another that will not, with both groups consisting of patients over 18 years old. The study will analyze urine and blood test results to determine any changes in glycemic profiles post-surgery. The research seeks to understand the relationship between parathyroid hormone levels and insulin sensitivity in these patients.

Who should consider this trial

Good fit: Ideal candidates include adults over 18 years old with both primary hyperparathyroidism and type 2 diabetes who are scheduled for parathyroidectomy or who will not undergo surgery.

Not a fit: Patients with type 1 diabetes or those with recurrent or persistent hyperparathyroidism will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of blood sugar levels in patients with both primary hyperparathyroidism and type 2 diabetes.

How similar studies have performed: There have been limited studies on this topic, suggesting that this approach may be novel and underexplored.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Study group: Consecutive patients older than 18 years old with concomitant PHPT and DM who will undergo PTX. The indications and need for surgery will be independent from the research team.
2. Control group: Consecutive patients older than 18 years old with concomitant PHPT and DM who will not undergo PTX. The indications to forgo surgery will be independent from the research team.

Exclusion Criteria:

1. Patients with recurrent or persistent PHPT will not be included.
2. Patients who are included but have evidence of recurrent or persistent PHPT based on six-month laboratory workup will be excluded from the final analysis (\<5% expected)9.
3. Patients with type 1 diabetes mellitus
4. Patients with secondary and/or tertiary hyperparathyroidism

Where this trial is running

Cleveland, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Primary HyperparathyroidismType 2 DiabetesHyperparathyroidism, Glycemic Control
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.