A Cohort Study on the Safety and Efficacy of XH-02 in Treating Hypoparathyroidism (NCT07540286) | Clinical Trial Compass
RecruitingPhase 2
A Cohort Study on the Safety and Efficacy of XH-02 in Treating Hypoparathyroidism
China60 participantsStarted 2026-04-13
Plain-language summary
XH-02 is an mRNA nucleic acid drug that expresses PTH in the body following intravenous or subcutaneous injection, providing PTH replacement therapy for patients with hypoparathyroidism. Previous clinical studies have demonstrated the safety of subcutaneously administered XH-02 in several patients with hypoparathyroidism and have yielded clear efficacy results. This study aims to further validate the safety and efficacy of subcutaneously injected XH-02 in the treatment of hypoparathyroidism in a expanded cohort.
Who can participate
Age range
18 Years – 90 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Age ≥18 years, both males and females eligible;
. History of postoperative chronic HP or autoimmune, genetic, or idiopathic HP for at least 26 weeks. The diagnosis of HP is established based on the presence of inappropriately low serum PTH levels concurrent with hypocalcemia in the past.
. Poorly controlled or intolerant to conventional treatment (calcium and vitamin D) for hypoparathyroidism;
. BMI 17-40 kg/m² (inclusive) at screening;
. If age ≤25 years, radiographic evidence of epiphyseal closure based on X-ray results of the wrist and palm of the non-dominant hand.
Exclusion criteria
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Adverse events (safety)
Timeframe: From the first dose through 30 days after the last dose for non-serious adverse events, and through 3 months after the last dose for severe adverse events.
. Impaired PTH response (pseudohypoparathyroidism), characterized by PTH resistance and elevated PTH levels in the presence of hypocalcemia;
. Allergic constitution, or allergy to the investigational drug or polyethylene glycol (PEG)-based drugs;
. Any disease other than HP that may affect calcium metabolism, calcium-phosphorus homeostasis, or PTH levels, such as active hyperthyroidism; Paget's disease of bone; severe hypomagnesemia; type 1 diabetes mellitus or poorly controlled type 2 diabetes mellitus (HbA1C \>9%; HbA1C test results from blood samples collected within 12 weeks prior to screening are acceptable); severe and chronic liver or kidney disease; Cushing's syndrome; multiple myeloma; active pancreatitis; malnutrition; rickets; recent prolonged immobilization; active malignancy (except for low-risk well-differentiated thyroid cancer or non-melanoma skin cancer); active hyperparathyroidism; parathyroid carcinoma occurring within 5 years prior to screening; acromegaly; or multiple endocrine neoplasia;
. Pregnant or breastfeeding women;
. Male partners with female partners planning to become pregnant, or partners of childbearing potential who are unwilling to use adequate contraceptive methods during the study period;
. Patients with high-risk thyroid cancer requiring TSH suppression to \<0.2 mIU/L within 2 years, or those with a history of tumors;
. Use of loop diuretics, phosphate binders (except calcium supplements), digoxin, lithium, methotrexate, biotin \>30 mcg/day, or systemic corticosteroids (except as replacement therapy);
. Use of PTH-like drugs (whether commercially available or obtained through participation in clinical trials), including PTH(1-84), PTH(1-34), or other N-terminal fragments or analogs of PTH, or PTH-related protein within 4 weeks prior to screening;