NCT07081997 A Phase 3 Randomized Clinical Trial to Investigate the Safety and Efficacy of Palopegteriparatide at Doses Greater Than 30 μg/Day in Adult Participants With Hypoparathyroidism
| NCT ID | NCT07081997 |
| Status | Recruiting |
| Phase | Phase 3 |
| Sponsor | Ascendis Pharma Bone Diseases A/S |
| Condition | Hypoparathyroidism |
| Study Type | INTERVENTIONAL |
| Enrollment | 36 participants |
| Start Date | 2026-04-16 |
| Primary Completion | 2027-06 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.
This trial targets 36 participants in total. It began in 2026-04-16 with a primary completion date of 2027-06.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
This trial has a duration of 78 weeks and will include adult participants already on treatment with palopegteriparatide at doses at or greater than 30 mcg/day. All participants will receive subcutaneous palopegteriparatide during the trial and will be individually and progressively titrated to an optimal dose at pre-specified dose levels. The primary purpose of the trial is to provide additional evidence of treatment effect and safety of palopegteriparatide at doses greater than 30 mcg/day in adults with hypoparathyroidism. The trial will be conducted in the US.
Eligibility Criteria
Inclusion criteria: 1. Males and females, ≥18 years of age at the time of providing informed consent 2. Participants with postsurgical chronic hypoparathyroidism (HP), or auto-immune, genetic, or idiopathic HP, for at least 26 weeks 3. Receiving doses of palopegteriparatide at or above 30 µg/day For individuals receiving 30 µg/day: evidence that dose is insufficient to keep serum calcium in the normal range, defined as: Documented hypocalcemia within 12 weeks prior to Screening; and/or Standing dose of calcitriol ≥0.25 μg/day, and / or (elemental) calcium ≥1500 mg/day (e.g., calcium citrate, calcium carbonate etc.) for at least 4 weeks prior to Screening For individuals receiving 33 µg/day or greater: no requirement for documented hypocalcemia or minimum doses of calcitriol or elemental calcium 4. Confirmation of laboratory parameters (Central and Local) within 2 weeks of screening visit and prior to randomization: 25(OH) vitamin D levels of 20 - 80 ng/mL (49 - 200 nmol/L) and Magnesium level in the normal range, or just below the normal range i.e.: ≥1.3 mg/dL (≥0.53 mmol/L) and Albumin-adjusted or ionized sCa level in the normal range or just below the normal range * Albumin-adjusted sCa 7.8 - 10.6 mg/dL (or 1.95 - 2.64 mmol/L) * Ionized sCa 4.40 - 5.29 mg/dL (1.10 - 1.32 mmol/L) 5\. BMI 17- 40 kg/m2 at Screening 6\. If ≤25 years of age, radiological evidence of epiphyseal closure based on locally interpreted X-ray of non-dominant wrist and hand 7\. eGFR ≥30 mL/min/1.73 m2 during Screening using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula Exclusion criteria 1. Impaired responsiveness to PTH (pseudohypoparathyroidism), which is characterized as PTH-resistance, with elevated PTH levels in the setting of hypocalcemia 2. Any disease that might affect calcium metabolism or calcium-phosphate homeostasis or PTH levels other than HP 3. Use of loop diuretics, phosphate binders (other than calcium supplements), digoxin, lithium, methotrexate, biotin \>30 µg/day, or systemic corticosteroids (other than as replacement therapy) 4. Use of thiazide diuretic within 4 weeks prior to the 24-hour urine collection scheduled to occur within 1 week prior to Visit 1 5. Use of PTH-like drugs other than palopegteriparatide (whether commercially available or through participation in an investigational trial), including PTH(1-34), or other N-terminal fragments, analogs of PTH or PTH-related protein, or PTH1R biased agonists within 4 weeks prior to Screening 6. Use of drugs known to influence calcium and bone metabolism within 12 weeks prior to Screening 7. Use of osteoporosis therapies other than bisphosponate known to influence calcium and bone metabolism within 2 years prior to Screening. Note: use of bisphosphonate (oral or intravenous \[IV\] is not exclusionary 8. Non-hypocalcemic seizure disorder with occurrence of a seizure within 26 weeks prior to Screening. 9. Increased risk for osteosarcoma 10. Women who are pregnant, intend to become pregnant, or are lactating 11. Male who has a female partner who intends to become pregnant or is of childbearing potential and is unwilling to use adequate contraceptive methods during the trial 12. Diagnosed drug or alcohol dependence within 3 years prior to Screening 13. Chronic or severe cardiac disease within 26 weeks prior to Screening 14. Cerebrovascular accident within 5 years prior to Screening. 15. Within 26 weeks prior to Screening: acute colic due to nephrolithiasis, or acute gout 16. Participation in any other interventional trial in which receipt of investigational drug or device other than palopegteriparatide occurred within 8 weeks (or within 5.5 times the half-life of the investigational drug) (whichever comes first) prior to Screening. 17. Known allergy or sensitivity to PTH or any of the excipients \[metacresol, mannitol, succinic acid, NaOH/(HCl)\] of the investigational product
Contact & Investigator
Medical Director, MD
STUDY DIRECTOR
Ascendis Pharma A/S
Frequently Asked Questions
Who can join the NCT07081997 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, studying Hypoparathyroidism. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
What phase is the NCT07081997 trial and what does that mean for participants?
Phase 3 trials are large-scale studies comparing the new treatment to existing standards of care or a placebo. They provide the evidence needed for regulatory approval. This trial targets 36 participants.
Is NCT07081997 currently recruiting?
Yes, NCT07081997 is actively recruiting participants. Contact the research team at asnd_registryinquiries@ascendispharma.com for enrollment information.
Where is the NCT07081997 trial being conducted?
This trial is being conducted at Reno, United States, New York, United States, Spokane Valley, United States.
Who is sponsoring the NCT07081997 clinical trial?
NCT07081997 is sponsored by Ascendis Pharma Bone Diseases A/S. The principal investigator is Medical Director, MD at Ascendis Pharma A/S. The trial plans to enroll 36 participants.