Safety, PK and Efficacy of 15 Days of SCY-635 Treatment in Hepatitis C Patients

November 5, 2014 updated by: Scynexis, Inc.

A Randomized, Double Blind, Placebo-Controlled Study to Evaluate the Safety, Pharmacokinetics, and Effect of Treatment With SCY 635 on Plasma HCV RNA Following 15 Days of Oral Administration in Adult Patients With Chronic Hepatitis C Infection

This study will examine the effectiveness of 15 days of therapy with SCY-635 in reducing hepatitis C virus (HCV) RNA levels.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
57

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Francisco, California, United States, 94115
        • Quest Clinical Research
    • Virginia
      • Richmond, Virginia, United States, 23249
        • McGuire Veterans Affairs Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

A potential subject will be eligible for participation in this study if he or she meets all of the following inclusion criteria:

  • The subject is either male or female, between the ages of 18 and 65 years (inclusive).
  • The subject has read and signed a Subject Informed Consent form to participate in the study. If the subject is not fluent in English, the Subject Informed Consent form must be translated into his or her native language.
  • Female subjects of childbearing potential (i.e., women not surgically sterile or at least two years postmenopausal) must agree to utilize one of the following forms of contraception from Screening through completion of the study: abstinence, barrier (condom, diaphragm with spermicide), intrauterine device (IUD), or vasectomized partner (six months minimum). Hormonal contraception (oral, transdermal, implant, or injection) is not permitted during the study period (i.e., from Screening through the Follow-up visit). Note: For women aged <50 years, postmenopausal is defined as at least two years cessation of menses. For women aged ≥50 years, postmenopausal is defined as at least one year cessation of menses. Estrogen replacement is allowed during the study.
  • The subject exhibits quantifiable plasma levels of HCV-specific RNA in excess of 100,000 IU/mL as determined by the quantitative Roche COBAS taqMan assay.
  • The subject has a negative urine screen for amphetamines, barbiturates, cocaine, opiates, and phencyclidine at Screening.
  • If female, the subject has a negative serum pregnancy test at Screening (within 30 days prior to dosing) and a negative urine pregnancy test on Study Day -1.

Exclusion Criteria:

A potential subject will be excluded from participation in the study if he or she meets any of the following exclusion criteria:

  • The subject has a history of clinically significant gastrointestinal, renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, immunologic, psychiatric, or cardiovascular disease, or any other condition which, in the opinion of the Principal Investigator, may jeopardize the safety of the subject or may impact the validity of the study results.
  • The subject is infected with any HCV genotype other than genotype 1.
  • The subject has documented positive antibody tests for Human Immunodeficiency Virus Types 1 or 2 (p24 antibody specific for HIV-1 or HIV-2) or Hepatitis B virus (HBV) surface antigen (HbSAg) or at Screening exhibits serologic evidence of infection with either HIV-1, HIV-2 or HBV.
  • The subject has donated blood within 30 days prior to dosing or donated plasma within 14 days prior to dosing.
  • The subject has used any investigational agent within three months prior to dosing.
  • The subject has received any FDA-approved anti-HCV therapy (including ribavirin or any product that contains interferon) within three months prior to dosing.
  • The subject exhibits evidence of decompensated liver disease, as marked by bilirubin greater than 4 mg/dL, albumin less than 3.0 g/dL, prothrombin time greater than 2 seconds prolonged, or history of bleeding esophageal varices, ascites or hepatic encephalopathy.
  • The subject is an organ transplant recipient.
  • The subject exhibits ALT values greater than or equal to 2.5 times the upper limit of normal.
  • The subject exhibits evidence of hepatocellular carcinoma either by exhibiting a serum alpha-fetoprotein concentration which exceeds 50 mg/L or by exhibiting a mass suggestive of liver cancer by ultrasound or other imaging technology.
  • The subject exhibits evidence of ongoing alcohol or substance abuse.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo comparator
Drug: Placebo
Oral tablet given once or three times daily for 15 consecutive days
Active Comparator: SCY-635 30 mg once daily
Drug: SCY-635
oral capsule
Active Comparator: SCY-635 100 mg once daily
Drug: SCY-635
oral capsule
Active Comparator: SCY-635 300 mg once daily
Drug: SCY-635
oral capsule
Active Comparator: SCY-635 100 mg three times daily
Drug: SCY-635
oral capsule
Active Comparator: SCY-635 200 mg three times daily
Drug: SCY-635
oral capsule
Active Comparator: SCY-635 300 mg three times daily
Drug: SCY-635
oral capsule

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Plasma HCV RNA level
Time Frame: 22 days
22 days
Incidence and severity of treatment-emergent adverse events and changes in laboratory values as measures of safety and tolerability.
Time Frame: 22 days
22 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Pharmacokinetic assessment of SCY-635
Time Frame: 22 days
22 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Scynexis, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Douglas Heuman, MD, McGuire Veterans Affairs Medical Center, Richmond, Virginia
  • Principal Investigator: Jacob Lalezari, MD, Quest Clinical Research, San Francisco, California

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2007

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2008

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2009

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 4, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 4, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 7, 2011

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 6, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 5, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2011

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SCY-635-104

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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