Examination of Plasma Concentrations and Safety in Chronic Kidney Disease Patients Undergoing Hemodialysis

Astellas

Status and phase: Completed; Phase 1

Conditions: Pharmacokinetics of ASP7991; Patients on Stable Chronic Maintenance Dialysis Who Are Receiving Hemodialysis Therapy; Pharmacodynamics of ASP7991

Treatments: Drug: ASP7991

Study type: Interventional

Funder types: Industry

Identifiers

NCT01872026

7991-CL-1003

Details and patient eligibility

About

This study is to assess the safety, tolerability, plasma concentration and pharmacodynamics of ASP7991 after oral administration to patients with chronic kidney disease undergoing hemodialysis.

Full description

To examine the pharmacokinetics, pharmacodynamics and safety in patients with chronic kidney disease undergoing hemodialysis.

• To assess the pharmacokinetics (PK), pharmacodynamics (PD), safety and the effect of hemodialysis on PK of single oral administration of ASP7991 in Part 1.
• To assess the safety, PK and PD of repeated oral administration of ASP7991 in part 2.

Enrollment: 14 patients

Sex: All

Ages: 20 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients on stable chronic maintenance dialysis who are receiving hemodialysis therapy 3 times/week for more than 12 weeks (84 days) and are also scheduled to undergo the regimen of 3 times/week hemodialysis during the study period

• Patients who have secondary hyperparathyroidism;

  1. Receiving Active vitamin D or Cinacalcet hydrochloride
  2. OR iPTH values ≥ 180 pg/mL at screening in case patients receive no medication for secondary hyperparathyroidism.

• Corrected serum Ca at screening：≥ 8.4 mg/dL

• No changes in items below at least 7 days before screening and do not have a plan to change something in the items below during the trial.

  1. Dose and type of Active Vitamin D, Calcitonin preparation, Phosphate binder.
  2. Ca concentration of the dialysate, membrane area of the dialyzer and dialysis time of each week(possible to change within ±10%)

Exclusion criteria

• Patients who underwent parathyroid intervention within 24 weeks prior to the informed consent
• Patients who have primary hyperparathyroidism
• Having a history of gastric/intestinal resection considered influential on the absorption of the drug in the gastrointestinal tract
• Patients with uncontrolled hypertension (systolic blood pressure ≥ 180 mmHg and diastolic blood pressure ≥ 120 mmHg are showed at the previous three points at the initiation of dialysis including the screening assessment)
• Complicated by severe heart disorder [congestive cardiac failure (NYHA classification III or higher), or wide range of old myocardial infarction], or having a history of hospitalization for cerebro-vascular disease or heart disorder within 12 weeks(84 days) before obtaining the informed consent.
• Concurrent serious hepatic disease (acute and active chronic hepatitis, hepatic cirrhosis)
• History of malignant tumor
• History of serious drug allergy including anaphylactic shock
• Potentially child-bearing, lactating, those who do not comply with the instructed contraceptive measures
• Patients who were involved in an assessment of other clinical trial within 12 weeks(84 days) prior to the informed consent
• Patients who is an employee of the sponsor, CRO, SMO, or sites related to the study.
• Patients who have been judged ineligible to participate in the study by the investigator / sub investigator.

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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14 participants in 2 patient groups

Part 1- single administration

Experimental group

Description:

The lowest, middle and the highest dose ASP7991 as a single oral administration on non-dialysis day in step 1 to 3 and the highest dose on day of dialysis in step 4.

Treatment:

Drug: ASP7991

Part 2- repeated administration

Experimental group

Description:

The lowest, middle and the highest dose ASP7991 as repeated oral administration in step 1 to 3.

Treatment:

Drug: ASP7991