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CompletedNCT05082779Updated Oct 18, 2022

Study in Healthy Volunteers to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of CS0159

A Phase 1 interventional study of CS0159 in Primary Sclerosing Cholangitis (PSC), sponsored by Cascade Pharmaceuticals, Inc. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-10-18.

Sponsored by Cascade Pharmaceuticals, Inc · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Sep 2022, 4 years ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
79
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The whole study includes 2 parts. Both the SAD study and MAD study are randomized, double-blinded, and placebo-controlled studies, conducted in healthy subjects, to assess the safety, tolerability, pharmacokinetics, and pharmacodynamics profiles of CS0159. The SAD part also involves a pilot food effect (FE) study, designed to assess the food effect on single-dose PK profile in healthy subjects.

Read the detailed description

A total of 48 healthy subjects will be allocated to 1 of 6 cohorts (cohort A1\~A6) in the SAD study, each cohort including 8 subjects (6 subjects will receive investigational new drug (IND) product and 2 receive placebo). Each subject in fasted state will be randomly assigned to receive a single oral dose of CS0159 or placebo.To ensure the safety for all SAD cohorts (including A3 in both treatment periods).

The MAD study will enroll 32 healthy subjects, allocated to 1 of 4 cohorts (cohort B1\~B4) and each cohort including 8 participants (6 subjects will receive IND products and 2 receive placebo). Subjects will be randomly assigned to orally receive the IND product or placebo.

02

Conditions studied

  • Primary Sclerosing Cholangitis (PSC)
03

In context

Cholangitis

228 studies on the registry are indexed under Cholangitis; 32 are open to participants now.

This study's enrollment of 79 is above the median of 56 across 150 interventional studies indexed under Cholangitis.

Browse Cholangitis studies →

Lead sponsor

Cascade Pharmaceuticals, Inc is the lead sponsor of 13 studies on the registry; 2 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Healthy male and non-pregnant female volunteers
  2. In good health, determined by having no clinically significant findings from medical history, physical examination, 12-lead ECG, vital signs measurements, and clinical laboratory evaluations

Exclusion criteria

Exclusion Criteria:

  1. Subjects with special dietary requirements and cannot follow a uniform diet.
  2. Pregnant or nursing females or females who have pregnancy plans during the trial or within 3 months after the trial.
  3. Any subject with SARS-CoV-2 infection, based on a positive polymerase chain reaction for SARS-CoV-2.
  4. History or evidence of clinically significant disorder, condition, or disease that, in the opinion of the investigator, would pose a risk to subject safety or interfere with the study evaluations, procedures, or completion.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
79 participants (actual)

Study arms

  • Experimental
    Cohort A1: 0.2 mg

    Participants in fasted state will receive CS0159 0.2 mg or placebo once on Day 1.

    Drug: CS0159

  • Experimental
    Cohort A2: 0.6 mg

    Participants in fasted state will receive CS0159 0.6 mg or placebo once on Day 1.

    Drug: CS0159

  • Experimental
    Cohort A3: 1 mg

    Participants in fasted state will receive CS0159 1 mg or placebo once on Day 1 followed by a 7-day washout period then given in 1 mg tablet (in fed state) on Day 8.

    Drug: CS0159

  • Experimental
    Cohort A4: 2 mg

    Participants in fasted state will receive CS0159 2 mg or placebo once on Day 1.

    Drug: CS0159

  • Experimental
    Cohort A5: 4 mg

    Participants in fasted state will receive CS0159 4 mg or placebo once on Day 1.

    Drug: CS0159

  • Experimental
    Cohort A6: 8 mg

    Participants in fasted state will receive CS0159 8 mg or placebo once on Day 1.

    Drug: CS0159

  • Experimental
    Cohort B1: 0.4 mg

    Participants in fasted state will receive CS0159 0.4 mg or placebo once daily for a consecutive 14 days.

    Drug: CS0159

  • Experimental
    Cohort B2: 1 mg

    Participants in fasted state will receive CS0159 1 mg or placebo once daily for a consecutive 14 days.

    Drug: CS0159

  • Experimental
    Cohort B3: 2 mg

    Participants in fasted state will receive CS0159 2 mg or placebo once daily for a consecutive 14 days.

    Drug: CS0159

  • Experimental
    Cohort B4: 4mg

    Participants in fasted state will receive CS0159 4 mg or placebo once daily for a consecutive 14 days.

    Drug: CS0159

Interventions

  • DrugCS0159

    Tablets administered orally

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Single-Dose Pharmacokinetic (PK) Parameter

    Area under the concentration-time curve (AUC) from time zero to infinity (AUC0-∞)

    Time frame: Day 1 after dosing

  2. Single-Dose Pharmacokinetic (PK) Parameter: (AUC0-last)

    AUC from time zero to the time of the last measured concentration

    Time frame: Day 1 after dosing

  3. Single-Dose Pharmacokinetic (PK) Parameter: (Cmax)

    Maximum observed plasma concentration

    Time frame: Day 1 after dosing

  4. Single-Dose Pharmacokinetic (PK) Parameter: (Tmax)

    Time of the maximum observed plasma concentration

    Time frame: Day 1 after dosing

  5. Multiple-Dose PK Parameter

    Maximum concentration during a dosing interval Ct_max

    Time frame: Day 1 after dosing; day 14

  6. Multiple-Dose PK Parameter: (Ct_min, Day 14)

    Minimum concentration during a dosing interval

    Time frame: Day 1 after dosing; day 14

  7. Multiple-Dose PK Parameter: (AUCtau)

    AUC over one dosing interval

    Time frame: Day 1 after dosing; day 14

  8. To characterize the safety and tolerability of single dose of CS0159

    Incidence and severity of adverse events

    Time frame: up to Day 31

  9. To characterize the safety and tolerability of multiple doses of CS0159

    Incidence and severity of adverse events

    Time frame: up to Day 44

Secondary outcomes

  1. Pharmacodynamic (PD) Parameter: FGF19

    fibroblast growth factor 19

    Time frame: Day -1; day 1

  2. Pharmacodynamic (PD) Parameter: C4

    serum concentration

    Time frame: Day -1; day 1

07

Study locations

1 site
  • Labcorp Clinical Research Unit, Inc.
    Daytona Beach, Florida 32117, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05082779
Lead sponsor
Cascade Pharmaceuticals, Inc
Collaborators
Covance
Responsible party
Sponsor
First posted
Oct 19, 2021
Start date
Oct 26, 2021
Primary completion
Sep 16, 2022
Completion
Oct 12, 2022
Last update
Oct 18, 2022

Study contacts

Kathleen Doisy, MD
principal investigator · Labcorp Clinical Research Unit, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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