Clinical trial • Not applicable • Endocrinology|Rare Disease

PALOPEGTERIPARATIDE for Hypoparathyroidism

Not applicable trial of PALOPEGTERIPARATIDE for Hypoparathyroidism.

Overview

Trial Therapeutic Area
Endocrinology|Rare Disease
Trial Disease
Hypoparathyroidism
Trial Stage
Not applicable
Drug Modality
Peptide/protein/enzyme|Small molecule
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
22-12-2025
First CTIS Authorization Date
20-04-2026

Trial design

open-label, alfacalcidol stada 1 micrograme capsule moi (alfacalcidol) oral comparator; max daily dose 10 µg. conventional treatment (activated vitamin d analogues and calcium supplements) is used as control. Not applicable trial across 1 site in Denmark.

Open Label
Yes
Comparator
Alfacalcidol Stada 1 micrograme capsule moi (alfacalcidol) oral comparator; max daily dose 10 µg. Conventional treatment (activated vitamin D analogues and calcium supplements) is used as control.
Real World Control
Yes
Target Sample Size
40
Trial Duration For Participant
729

Eligibility

Recruits 40 No vulnerable populations selected. Participants are adults (age 18-80) and must speak and read Danish. Informed consent is obtained using the provided Subject information and informed consent form documents..

Pregnancy Exclusion
Pregnancy
Vulnerable Population
No vulnerable populations selected. Participants are adults (age 18-80) and must speak and read Danish. Informed consent is obtained using the provided Subject information and informed consent form documents.

Inclusion criteria

  • {"criterion_text":"- Male or female with age between 18 and 80 years.\n- A low endogenous PTH production is verified by low plasma levels of intact PTH, necessitating treatment with 1-αhydroxylated vitamin D analogs.\n- Stable P-calcium levels 1 month prior to inclusion\n- Stable thyroid function as measured by thyroid stimulating hormone (TSH)\n- Speaks and reads Danish"}

Exclusion criteria

  • {"criterion_text":"- Reduced kidney function (eGFR < 30 mL/min/1.73m2).\n- Unwillingness to participate\n- Uncontrolled diabetes type 1 or 2\n- Uncontrolled hypertension\n- Clinical suspicion of major depression (also if treated)\n- Clinical suspicion of ongoing alcohol abuse (or alcohol-related dementia)\n- Other organic or psychiatric cause the patients’ symptoms\n- Contraindications to contrast-enhanced MRI.\n- Metal implants close to the head, which will interfere with the MRI or pacemaker. The patients will complete a metal scheme\n- Claustrophobia\n- Pregnancy"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Difference in microvascular hemodynamic between PTH- and conventionally treated patients with chronic HypoPT","definition_or_measurement_approach":"Measured using microvascular hemodynamic assessment with a contrast-enhanced MRI based method to examine cerebral capillary bloodflow and capillary dysfunction."}

Secondary endpoints

  • {"endpoint_text":"- Correlation between cognitive impairment measured by neuropsychological assessment and capillary transit time heterogeneity, cortical blood volume and hemodynamic parameters.","definition_or_measurement_approach":"Neuropsychological assessments correlated with MRI-derived measures including capillary transit time heterogeneity, cortical blood volume and hemodynamic parameters."}
  • {"endpoint_text":"- Status of cognitive function in PTH treated compared to conventional treated controls","definition_or_measurement_approach":"Assessment of cognitive function using neuropsychological tests."}
  • {"endpoint_text":"- Difference in groups in size of structures in the brain.","definition_or_measurement_approach":"Brain structural size differences assessed by MRI."}

Recruitment

Planned Sample Size
40
Recruitment Window Months
24
Consent Approach
Informed consent obtained from adult participants (18-80) via Subject information and informed consent form documents provided in the study documentation. Participants must speak and read Danish.

Geography

Total Number Of Sites
1
Total Number Of Participants
40

Denmark

Earliest CTIS Part Ii Submission Date
30-03-2026
Latest Decision Or Authorization Date
20-04-2026
Processing Time Days
21
Number Of Sites
1
Number Of Participants
40

Sites

Site Name
Aarhus Universitet
Department Name
Department of Endocrinology and Internal Medicien
Principal Investigator Name
Lars Rejnmark
Principal Investigator Email
lars.rejnmark@rm.dk
Contact Person Name
Lars Rejnmark
Contact Person Email
lars.rejnmark@rm.dk
Number Of Participants
40

Sponsor

Primary sponsor

Full Name
Region Midtjylland
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Denmark

Third parties

  • {"country":"Denmark","full_name":"GCP enhederne","duties_or_roles":"Sponsor duties (code 1); contact gcp@clin.au.dk","organisation_type":"Regulatory Authority"}

Investigational products

Investigational Product Name
Yorvipath 168 micrograms/0.56 mL solution for injection in pre‑filled pen
Active Substance
PALOPEGTERIPARATIDE
Modality
Peptide/protein/enzyme
Routes Of Administration
SUBCUTANEOUS INJECTION
Route
SUBCUTANEOUS INJECTION
Authorisation Status
Authorised (marketing authorisation EU/1/23/1766/001)
Orphan Designation
Yes
Maximum Dose
420 µg per day
Investigational Product Name
Alfacalcidol Stada 1 micrograme capsule moi
Active Substance
ALFACALCIDOL
Modality
Small molecule
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
Authorised (marketing authorisation 15039/2023/07)
Maximum Dose
10 µg per day

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