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A Single and Multiple-Ascending Dose Study of CRN01941 in Healthy Adult Volunteers

A Double-Blind, Randomized, Placebo-Controlled, Single- And-Multiple-Ascending Dose Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of CRN01941 in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03936166
Enrollment
57
Registered
2019-05-03
Start date
2019-04-29
Completion date
2019-12-16
Last updated
2020-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

This is a Phase 1, double-blind, randomized, placebo-controlled, single-dose and multiple-dose study of CRN01941 in up to 119 healthy male and female subjects. This single-center study will be conducted in 3 parts: a single-ascending dose phase (up to 8 cohorts, 8 subjects/cohort), a multiple-ascending dose phase (up to 5 cohorts, 9 subjects/cohort), and single dose phase in elderly subjects (1 cohort, 10 subjects).

Interventions

DRUGCRN01941 Oral Solution

Investigational drug

DRUGCRN01941 Oral Capsule

Investigational drug

DRUGPlacebo Oral Capsule

Placebo

Sponsors

Crinetics Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Double-blind study

Intervention model description

Single and multiple-dose cohorts are placebo-controlled.

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male and female subjects 18 to 55 years of age, inclusive, at time of screening (Parts 1 and 2 only). 2. Males and females subjects 65 to 85 years of age at screening (Part 3 only). 3. Females must be non-pregnant and non-lactating, postmenopausal by history and confirmed by follicle stimulating hormone (FSH) \>30 U/L at Screening, or surgically sterile. 4. Male subjects must be surgically sterile or agree to use highly effective form of contraception when sexually active with a female partner of child bearing potential. 5. Body mass index (BMI) of 18 to 32 kg/m2, inclusive at Screening. 6. Willing to provide signed informed consent.

Exclusion criteria

1. Any uncontrolled or active major systemic disease which makes study participation unsafe or could interfere with evaluation of the endpoints of the study. 2. History or presence of malignancy within the past 5 years, not including treated basal cell carcinomas and in situ cervical neoplasia. 3. Use of any investigational drug within the past 60 days. 4. Have a medically significant abnormality observed during screening or admission. 5. Use of any prior medication without approval of the investigator within 14 days prior to admission. 6. Subjects with human immunodeficiency virus (HIV), hepatitis B or hepatitis C infections. Subjects with previous hepatitis C infection that is now cured may be eligible. 7. History of or current alcohol or substance abuse in the past 12 months 8. Any condition that in the opinion of the investigator would jeopardize the subject's appropriate participation in this Phase 1 study.

Design outcomes

Primary

MeasureTime frame
Number of participants with clinical laboratory abnormalitiesPart 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8
Number of participants with treatment emergent adverse events by severityPart 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8
Number of participants with serious adverse events (SAEs)Part 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8
Number of participants with clinically significant changes in vital signsPart 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8
Number of participants with ECG abnormalitiesPart 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8

Secondary

MeasureTime frameDescription
Pharmacokinetics (Cmax)Part 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8Assessment of the maximum observed plasma concentration of CRN01941
Pharmacokinetics (Tmax)Part 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8Assessment of the time to reach Cmax for CRN01941
Pharmacokinetics (T1/2)Part 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8Assessment of the elimination half-life of CRN01941
Pharmacokinetics (AUC)Part 1 - up to Day 8; Part 2 - up to Day 20; Part 3 - up to Day 8Assessment of the plasma area under the curve of CRN01941

Countries

Australia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026