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Clinical Trials/NCT03276858
NCT03276858CompletedPhase 1

A Double-Blind, Randomized, Placebo-Controlled, Single- And-Multiple-Dose Study to Evaluate the Safety, PK, and PD of CRN00808 in Healthy Volunteers and to Determine the Effect of CRN00808 on Midazolam PK

Crinetics Pharmaceuticals Inc.1 site in 1 country99 target enrollmentStarted: September 22, 2017Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 1
Status
Completed
Enrollment
99
Locations
1
Primary Endpoint
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] of CRN00808 single ascending doses using clinical assessments, telemetry, and Holter monitoring and subject self-reporting

Study Overview

Brief Summary

This single-center study will be conducted in 3 phases: a single-ascending dose phase (up to 8 cohorts, 8 subjects/cohort), a multiple-dose phase (up to 5 cohorts, 9 subjects/cohort), and a midazolam drug-drug interaction phase (one cohort of 8 subjects).

Detailed Description

The single-dose phase initiates with ascending doses of an oral solution followed by a 3-way crossover food effect and bioavailability (capsule formulation) cohort. Serum IGF-1 levels and GHRH-analog stimulated GH levels will be assessed as pharmacodynamics measures.

The first multiple-dose (7 days dosing) cohort will be initiated after the PK and safety data are available from the single-dose phase. Subsequent multiple-dose cohorts will have 10 days of dosing. Serum IGF-1 level and GH levels will be assessed as pharmacodynamics measures.

The last cohort in the study is midazolam drug-drug interaction study. The dose will be selected based on review of all pharmacokinetic and safety data for the single-dose and multiple-dose cohorts completed. On Day 1, 8 subjects will receive a single oral 2 mg dose of midazolam. Starting on Day 3 through Day 8, subjects will receive daily doses of CRN00808. On Day 9, subjects will be administered CRN00808 and 2 mg midazolam together.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Masking Description

Double-blind study

Eligibility Criteria

Ages
18 Years to 50 Years (Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • BMI 18 to 30 kg/m2
  • Females postmenopausal or surgically sterile

Exclusion Criteria

  • Any uncontrolled or active major systemic disease including, but not limited to: acromegaly (with or without pituitary surgery or radiation therapy), cardiac, pulmonary, gastrointestinal, metabolic, urogenital, neurological, immunological, psychiatric, or neoplastic disorder with metastatic potential
  • History or presence of malignancy within the past 5 years. Subjects who have been successfully treated (for 3 months or longer) with no recurrence of basal or squamous cell carcinoma of the skin or carcinoma in-situ of the cervix may be enrolled.
  • Use of any investigational drug within the past 60 days or 5 half-lives, whichever is longer
  • Have a medically significant abnormality observed during screening or the admission physical examination or in any other baseline measurements
  • Use of any prior medication without approval of the investigator within 14 days prior to admission
  • Tested positive at screening for HIV, hepatitis B surface antigen (HBsAg) or hepatitis C antibody (HCV-Ab) or has a history of a positive result
  • History of alcohol or substance abuse in the past 6 months
  • Any condition that in the opinion of the investigator would jeopardize the subject's appropriate participation in this Phase 1 study

Arms & Interventions

CRN00808 Oral Solution

Experimental

CRN00808 oral solution, single-dose

Intervention: CRN00808 (Drug)

CRN00808 Oral Capsule

Experimental

CRN00808 oral capsule, single-dose and multiple-doses

Intervention: CRN00808 (Drug)

Placebo Oral Solution

Placebo Comparator

Placebo oral solution, single-dose

Intervention: Placebo Oral Solution (Drug)

Placebo Oral Capsule

Placebo Comparator

Placebo oral capsule, single-dose and multiple doses

Intervention: Placebo oral capsule (Drug)

Midazolam Oral Solution

Other

Midazolam oral solution, two single-doses as part of the drug-drug interaction arm of the study

Intervention: CRN00808 (Drug)

Midazolam Oral Solution

Other

Midazolam oral solution, two single-doses as part of the drug-drug interaction arm of the study

Intervention: Midazolam oral solution (Drug)

Outcomes

Primary Outcomes

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] of CRN00808 single ascending doses using clinical assessments, telemetry, and Holter monitoring and subject self-reporting

Time Frame: Day 1 through Day 10

ECG, clinical laboratory parameters, vital signs, physical examinations, telemetry, Holter monitoring

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] of CRN00808 multiple ascending doses using clinical assessments and subject self-reporting

Time Frame: Day 1 through Day 21

ECG, clinical laboratory parameters, vital signs, physical examinations

Secondary Outcomes

  • AUC of CRN00808 single ascending doses(Day 1 through Day 7)
  • Effect of CRN00808 on Cmax of midazolam(Day 1 through Day 10)
  • Relative bioavailability of capsule formulation(Day 1 to Day 7)
  • Cmax of CRN00808 multiple ascending doses(Day 1 through Day 20)
  • Pharmacodynamics of CRN00808 in single ascending dose cohorts assessed by GHRH analog stimulated GH levels(Day -1 and Day 1)
  • Effect of CRN00808 on pharmacokinetics of midazolam(Day 1 through Day 10)
  • Effect of food on Cmax of CRN00808(Day 1 to Day 7)
  • Tmax of CRN00808 single ascending doses(Day 1 through Day 7)
  • Tmax of CRN00808 multiple ascending doses(Day 1 through Day 20)
  • Pharmacodynamics of CRN00808 in multiple ascending dose cohorts assessed by serum IGF-1 and GH(Day -1 to Day 21)
  • AUC of CRN00808 multiple ascending doses(Day 1 through Day 20)
  • t1/2 of CRN00808 multiple ascending doses(Day 1 through Day 20)
  • Cmax of CRN00808 single ascending doses(Day 1 through Day 7)
  • t1/2 of CRN00808 single ascending doses(Day 1 through Day 7)
  • Effect of CRN00808 on t1/2 of midazolam(Day 1 through Day 10)
  • Effect of CRN00808 on Tmax of midazolam(Day 1 through Day 10)
  • Effect of food on AUC of CRN00808(Day 1 to Day 7)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (1)

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