MedPath

A Clinical Trial to Assess the Efficacy and Safety of JMT103 in Patients With Refractory HCM

Phase 1
Conditions
Hypercalcemia of Malignancy
Interventions
Registration Number
NCT04198480
Lead Sponsor
Shanghai JMT-Bio Inc.
Brief Summary

The purpose of this study is to determine the potential of JMT103 to treat hypercalcemia of malignancy in patients with elevated serum calcium who do not respond to recent treatment with intravenous bisphosphonates.

Detailed Description

This is a Phase I/II, Single arm, Open Label, Multi-center Clinical Trial to Assess the Efficacy and Safety of JMT103 in Patients With refractory Hypercalcemia of Malignancy.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
17
Inclusion Criteria
  1. Fully informed and signed informed consent.
  2. Male or female, Adults (>/=18 years).
  3. Hypercalcemia of Malignancy (HCM) as defined as documented histologically or cytologically confirmed cancer and a corrected serum calcium (CSC) > 12.5 mg/dL (3.1 mmol /L).
  4. Last IV bisphosphonate treatment must be >/= 7 days and </= 30 days before the screening corrected serum calcium; or Last hydration therapy must be >/= 24 hours before the screening corrected serum calcium(Incompatible bisphosphonate).
  5. Adequate organ function.
Exclusion Criteria
  1. Pregnancy.
  2. Hyperparathyroidism, or other granulomatous disease.
  3. Hepatitis b surface antigen positive.
  4. Hepatitis c antibody positive, or HIV antibody positive.
  5. Receiving dialysis for renal failure.
  6. Known sensitivity to JMT103 composition.
  7. Treatment with thiazides, calcitonin, mithramycin, or gallium nitrate within their window of expected therapeutic effect (as determined by the physician) prior to the date of screening CSC.
  8. Treatment with cinacalcet within 4 weeks prior to the date of screening CSC.
  9. Currently participating another clinical study,or Four weeks or less since receiving an investigational product in another clinical study.
  10. In the opinion of the investigator , being unsuitable for inclusion in the study,or subjects withdraw informed consent.
  11. Treatment with monoclonal antibody to RANK ligand (RANKL) within 180 days prior to the date of the screening CSC.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
JMT103JMT103Eligible subjects will receive JMT103 at a dose of 2 mg/kg subcutaneously (SC) every 4 weeks (Q4W) with a loading dose of 2 mg/kg SC on study days 8 and 15.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With corrected serum calcium (CSC) ≤ 11.5 mg/dL Within 10 Days after First Dose of JMT10310 Days after First Dose of JMT103

Percentage of Participants With corrected serum calcium (CSC) ≤ 11.5 mg/dL Within 10 Days after First Dose of JMT103

Secondary Outcome Measures
NameTimeMethod
Time to Complete Responsethrough study completion, an average of 57 Days

Time to Complete Response

Duration of Responsethrough study completion, an average of 57 Days

Duration of Response

Change in Corrected Serum Calcium (CSC)through study completion, an average of 57 Days

Change in Corrected Serum Calcium (CSC)

Change in urine N-telopeptide/urine creatinine (uNTx/uCr)through study completion, an average of 57 Days

Change in urine N-telopeptide/urine creatinine (uNTx/uCr)

Percentage of Participants With corrected serum calcium (CSC) ≤ 11.5 mg/dL(2.9 mmol/L) by each visit.through study completion, an average of 57 Days

Percentage of Participants With corrected serum calcium (CSC) ≤ 11.5 mg/dL(2.9 mmol/L) by each visit.

Percentage of Participants With corrected serum calcium (CSC) ≤ 10.8 mg/dL(2.7 mmol/L) by each visit.through study completion, an average of 57 Days

Percentage of Participants With corrected serum calcium (CSC) ≤ 10.8 mg/dL(2.7 mmol/L) by each visit.

Time to Responsethrough study completion, an average of 57 Days

Time to Response

© Copyright 2025. All Rights Reserved by MedPath