Clinical Trial 41575

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Long Beach, CA 90807


Study Summary:

Phase IV Trial in a Phase I Center in Garden Grove.

Seeking patients CKD patients with Secondary Hyperparathyroidism and Vitatmin D Deficiency


Inclusion Criteria:

  1. Be at least 18 years of age.
  2. Have stage 3 or 4 CKD 
  3. If taking calcitriol, other 1α-hydroxylated vitamin D analog, or vitamin D supplementation, must forgo treatment with these non-study agents for the duration of the study and undergo a 4-week washout period.
  4. If taking more than 1,500 mg/day of elemental calcium, reduce calcium use (to approximately 1,000 to ≤1,500 mg/day) for the duration of the study.
  5. Willing and able to comply with study instructions and commit to all clinic visits for the duration of the study.
  6. Female subjects of childbearing potential must be neither pregnant nor lactating and must have negative blood pregnancy tests at the first screening visit.
  7. All female subjects of childbearing potential and male subjects with female partners of childbearing potential must agree to use effective contraception (implants, injectables, combined oral contraceptives, intrauterine device, sexual abstinence, vasectomy or vasectomized partner) for the duration of the study.
  8. Be able to read, understand and sign the subject Informed Consent Form (ICF) or have a legal authorized representative (LAR) sign the ICF.


Exclusion Criteria:

  1. History of or planned kidney transplant or parathyroidectomy
  2. History (prior 3 months) of corrected serum calcium ≥9.8 mg/dL or serum phosphorus ≥5.5 mg/dL if not receiving calcitriol or other 1α-hydroxylated vitamin D analog.
  3. Need for phosphate binders to maintain the serum phosphate < 5.5 mg/dL or use of phosphate binders within 4 weeks prior to screening
  4. Use of calcimimetic therapy (cinacalcet or etelcalcetide) within 12 weeks of screening.
  5. Receipt of bisphosphonate therapy or other bone modifying treatment within 6 months prior to enrollment.
  6. Known previous or concomitant serious illness or medical condition, such as malignancy, human immunodeficiency virus, significant gastrointestinal or hepatic disease, intestinal malabsorption disorder, hepatitis or cardiovascular event that in the opinion of the Investigator may worsen or reduce life expectancy, and/or interfere with participation in the study.
  7. History of neurological/psychiatric disorder, including psychotic disorder or dementia, or any reason which, in the opinion of the Investigator makes adherence to a treatment or follow-up schedule unlikely.
  8. Known or suspected hypersensitivity to any of the constituents of the study drugs.
  9. Currently participating in, or has participated in, an interventional/investigational study within 30 days prior to study screening.


Qualified Participants May Receive:

Compensation for participation and completion of study requirements.


Study is Available At:

National Institute of Clinical Research Phase I
9191 Westminster Blvd. Suite 208
Long Beach, CA 90807
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If you or someone you care for is interested in participating in this clinical trial and lives within 50 miles of the clinic, please complete the form below and click 'I Am Interested In This Study'

Clinical trials are medical research studies designed to test the safety and/or effectiveness of new investigational drugs, devices, or treatments in humans. These studies are conducted worldwide for a range of conditions and illnesses. Learn more about clinical research and participating in a study at About Clinical Trials.