NCT05654701

Brief Summary

To provide palopegteriparatide (TransCon PTH), an investigational parathyroid hormone (PTH) replacement therapy in an expanded access setting for adult patients with hypoparathyroidism who have previously received PTH-treatment, who meet the eligibility criteria for this protocol as described below and have a clear unmet medical need that cannot be adequately treated by a commercial product or a clinical trial.

Trial Health

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 8, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

December 16, 2022

Completed
Last Updated

June 27, 2025

Status Verified

June 1, 2025

First QC Date

December 8, 2022

Last Update Submit

June 24, 2025

Conditions

Keywords

HypoparathyroidismParathyroid HormoneTransCon PTHPTH(1-34)Expanded Access

Interventions

The investigational drug Palopegteriparatide (TransCon PTH) is supplied as a solution with a concentration of 0.3 mg PTH(1-34)/mL in a single-patient-use prefilled pen intended for subcutaneous injection.

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of hypoparathyroidism.
  • Patients with previous PTH-treatment experience.
  • Serum albumin-adjusted calcium level ≥7.8 mg/dL and 25(OH) vitamin D in the normal range within 2 weeks before first dose.
  • Body mass index (BMI) 17 - 40 kg/m2.
  • Be willing and able to give written informed consent by signing an Institutional Review Board (IRB)-approved Informed Consent Form (ICF).

You may not qualify if:

  • Diagnosis of pseudohypoparathyroidism.
  • Currently enrolled in an investigational drug or device study or has used an investigational drug or device within 30 days or 5 half-lives (whichever is longer) of Day 1.
  • Severe renal impairment (estimated glomerular filtration rate \<30 mL/min/1.73m2).
  • Increased risk for osteosarcoma, such as those with Paget's disease of bone or unexplained elevations of alkaline phosphatase, hereditary disorders predisposing to osteosarcoma, or with a prior history of substantial external beam or implant radiation therapy involving the skeleton
  • Active malignancy within past 2 years excluding successfully resected thyroid carcinoma and non-melanoma skin cancer.
  • Severe or decompensated cardiac disease within 26 weeks, including but not limited to class IV or Stage D heart failure, unstable angina, myocardial infarction or uncontrolled arrhythmias.
  • Pregnant or lactating females, or females intending to become pregnant.
  • Known allergy and/or sensitivity to palopegteriparatide or its excipients or prior PTH therapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hypoparathyroidism

Condition Hierarchy (Ancestors)

Parathyroid DiseasesEndocrine System Diseases

Study Design

Study Type
expanded access
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 8, 2022

First Posted

December 16, 2022

Last Updated

June 27, 2025

Record last verified: 2025-06