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Insulin Resistance in Primary Hyperparathyroidism (IRIPH)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02711059
Recruitment Status : Withdrawn (studien skjuts på framtiden)
First Posted : March 17, 2016
Last Update Posted : September 9, 2020
Information provided by (Responsible Party):
Inga-Lena Nilsson, Karolinska University Hospital

Brief Summary:
The aims of this study is to analyse if insulin resistance in primary hyperparathyroidism (pHPT) is normalised after parathyroid adenomectomy and if glucose tolerance test may be useful as a diagnostic tool by predicting potential improvement of insulin sensitivity after biochemical cure of pHPT.

Condition or disease Intervention/treatment Phase
Hyperparathyroidism Diabetes Hypercalcemia Procedure: parathyroidectomy Not Applicable

Detailed Description:

To be conducted at the Karolinska University Hospital, Stockholm. Patients with fb-glucos >6.1 and HbA1c without medical treatment will be included after informed consent and randomised to parathyroidectomy (PTX) within three months or not. The groups will be examined 4 ±4 weeks before and 12±2 weeks after PTX, similar for the control group. The number of participants will be estimated by power calculations based on a pilot study including 20 patients.

The test protocol includes glucose load with control of glucose and insulin, (0, 30, 60 and 120 min) together with measurement of markers of oxidative stress and inflammation.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Insulin Resistance in Primary Hyperparathyroidism, a Non-classical Manifestation
Study Start Date : October 2015
Estimated Primary Completion Date : December 2021
Estimated Study Completion Date : June 2022

Arm Intervention/treatment
Active Comparator: parathyroidectomy
change in insulin resistance
Procedure: parathyroidectomy
surgical treatment of hyperparathyroidism
Other Name: parathyroid adenomectomy

No Intervention: control
the study participant will be examined parallel with the active comparator

Primary Outcome Measures :
  1. glucose tolerance test with estimation of insulin resistance [ Time Frame: 3 months ]
    Homa IR

  2. quality of life - self estimation protocol [ Time Frame: 3 months ]

Secondary Outcome Measures :
  1. psychological wellbeing [ Time Frame: 3 months ]

  2. anxiety, depression [ Time Frame: 6 months ]

  3. cognition [ Time Frame: 6 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   50 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • primary hyperparathyroidism and fb-glukos>6,1 and/or HbA1c > 39 mmol/mol

Exclusion Criteria:

  • Treatment with insulin, sulfonylurea or metformin

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02711059

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Karolinska University Hospital
Stockholm, Sweden, SE-17176
Sponsors and Collaborators
Karolinska University Hospital
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Principal Investigator: Inga-Lena Nilsson, MD, PhD Karolinska Universitetssjukhuset
Additional Information:
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Responsible Party: Inga-Lena Nilsson, MD, PhD, consultant surgeon, Karolinska University Hospital Identifier: NCT02711059    
Other Study ID Numbers: KarolinskaUH_pHPT_diabetes
First Posted: March 17, 2016    Key Record Dates
Last Update Posted: September 9, 2020
Last Verified: September 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Inga-Lena Nilsson, Karolinska University Hospital:
insulin resistance
Additional relevant MeSH terms:
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Insulin Resistance
Hyperparathyroidism, Primary
Glucose Metabolism Disorders
Metabolic Diseases
Parathyroid Diseases
Endocrine System Diseases
Calcium Metabolism Disorders
Water-Electrolyte Imbalance
Parathyroid Hormone
Calcium-Regulating Hormones and Agents
Physiological Effects of Drugs