Clinical trial NCT02140268: To Evaluate the Effect of AZD1722 on the Pharmacokinetics of Oral Midazolam in Healthy Volunteers
Official title: A Phase 1, Single-center, Fixed-sequence, Open Label Study to Evaluate the Effect of Oral Repeated Doses of AZD1722 on the Pharmacokinetics of Oral Midazolam in Healthy Volunteers
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Healthy Volunteers
Keywords: Phase I
Healthy
Pharmacokinetics
Lead sponsor: Ardelyx
Sponsor class: INDUSTRY
First posted: 2014-05-16
Enrollment: 65
Sex: ALL
Minimum age (years): 18
Maximum age (years): 50
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NON_RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: BASIC_SCIENCE

Brief summary: A Study to Evaluate the Effects of oral repeated doses of AZD1722 on the Pharmacokinetics of Oral Midazolam in Healthy Volunteers

Detailed description: A Phase 1, Single-center, Fixed-sequence, Open Label Study to Evaluate the Effect of Oral Repeated Doses of AZD1722 on the Pharmacokinetics of Oral Midazolam in Healthy Volunteers

Eligibility criteria: Inclusion Criteria:Have a body mass index (BMI) ≥18 and ≤30 kg/m2 and weigh at least 50 kg and no more than 100 kg. Females of non-childbearing potential must be postmenopausal defined as amenorrhea for at least 12 months following cessation of all exogenous hormonal treatments and follicle stimulating hormone (FSH) levels in the postmenopausal range or documentation of irreversible surgical sterilization by hysterectomy, bilateraloophorectomy or bilateral salpingectomy but not tubal ligation

Females of childbearing potential must have a negative pregnancy test at screening, Day -1, and Day 14 and must not be lactating and use effective contraceptive methods to avoid pregnancy during the treatment period

Male healthy volunteers with a partner of childbearing potential must agree to avoid fathering a child, and refrain from donating sperm, from the first day of dosing until at least 3 months after last dose of the investigational product, and therefore be either sterile or agree to use approved methods of contraception

Exclusion Criteria:

* History of any clinically significant disease or disorder which, in the opinion of the principal investigator, may either put the healthy volunteer at risk because of participation in the study, or influence the results or the healthy volunteer's ability to participate in the study. History or presence of GI, hepatic or renal disease including GI surgery other than appendectomy or any other condition known to interfere with the absorption, distribution, metabolism or excretion of drugs. Loose stools (BSFS of 6 or 7) ≥2 days in the past 7 days before investigational product administration. Use of medications that are known to affect stool consistency and/or GI motility, including fiber supplements, anti-diarrheals, prokinetic drugs, enemas, probiotic medications or supplements, or salt or electrolyte supplements containing sodium, potassium, chloride, or bicarbonate formulations during the past 7 days before the investigational product administration. Use of any prescribed or non-prescribed medication including antacids, analgesics other than paracetamol/acetaminophen, herbal remedies, vitamins and minerals during the 2 weeks prior to the first administration of investigational product or longer if the medication has a long half-life. Use of drugs or substances with enzyme-inducing properties within 4 weeks prior to the first administration of investigational product.

Primary outcomes:
measure: To evaluate the pharmacokinetics of midazolam when administered after AZD1722 by assessment of area under the concentration-time curve (AUC) and maximal plasma concentration (Cmax) of midazolam
timeFrame: Blood samples are collected predose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 15 and 24 hours post dose on Day 1 and Day 15
Secondary outcomes:
measure: • To evaluate the pharmacokinetics of the metabolites 1-OH-midazolam and 4-OH-midazolam when midazolam is administered after AZD1722 by assessment of AUC and Cmax of 1-OH-midazolam and 4-OH-midazolam
timeFrame: Blood samples are collected predose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 15 and 24 hours post dose on Day 1 and Day 15
measure: To evaluate the pharmacodynamic outcomes of AZD1722 by assessment of how AZD1722 effects stool consistency and frequency
timeFrame: Stool frequency and stool consistency will be measured daily (Day -1 through Day 16)
measure: To evaluate the plasma concentrations of AZD1722
timeFrame: Blood samples are collected predose, 1, 2, 4 hours post morning dose on Day 15
measure: To evaluate the pharmacokinetics of midazolam metabolites when administered after AZD1722 by assessment of area under the concentration-time curve (AUC) maximal plasma concentration (Cmax) of 1-OH-midazolam and 4-OH-midazolam
timeFrame: Blood samples are collected predose, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 15 and 24 hours post dose on Day 1 and Day 15
Other outcomes:
measure: To evaluate the safety of AZD1722 when administered with midazolam in terms of adverse events, vital signs, electrocardiogram (ECG), hematology, clinical chemistry, urinalysis and physical examination
timeFrame: Safety assessments performed through the screening period (Day -28) to 10 days after the last dose (Day 16)
Locations:
city: Overland Park
country: United States
facility: Research Site
state: Kansas
Study officials:
affiliation: Quintiles, Inc.
name: Eleanor Lisbon, MD
role: PRINCIPAL_INVESTIGATOR
References: