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CompletedNCT02585440Updated Feb 2, 2017

A Multiple Dose Study of the Safety, Tolerability and PK of CMX157 in Healthy Subjects

A Phase 1 interventional study of CMX157 and placebo in Infectious Disease, sponsored by ContraVir Pharmaceuticals, Inc.. Completed at 1 site in Thailand. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-02-02.

Sponsored by ContraVir Pharmaceuticals, Inc. · Phase 1, Interventional, and Treatment

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Phase
Phase 1
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

This is a phase 1 study to evaluate the safety and tolerability of multiple oral doses of CMX157 at increasing dose levels.

Read the detailed description

This is a phase 1 study to evaluate the safety and tolerability of multiple oral doses of CMX157 at increasing dose levels, in a fasted state and a fed state.

02

Conditions studied

  • Infectious Disease

Browse trials for

03

In context

Communicable Diseases

626 studies on the registry are indexed under Communicable Diseases; 128 are open to participants now.

This study's enrollment of 50 is below the median of 89 across 380 interventional studies indexed under Communicable Diseases.

Browse Communicable Diseases studies →

Lead sponsor

ContraVir Pharmaceuticals, Inc. is the lead sponsor of 6 studies on the registry; none are open to participants now.

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age: 18-55.
  • Capable of giving written .
  • Capable of completing study requirements.

Exclusion criteria

Exclusion Criteria:

  • Positive result for , , or .
  • History or medical condition which could impact patient safety.
  • Current or past abuse of alcohol or illicit drugs.
  • Participation in another clinical trial within the past 30 days.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Group A

    CMX157, tablet, 5 mg, QD, 14 days versus CMX157 placebo, 5 mg, tablet, QD, 14 days

    Drug: CMX157 · Drug: placebo

  • Experimental
    Group B

    CMX157, tablet, 10 mg, QD, 14 days versus CMX157, placebo tablet, 10 mg, QD, 14 days

    Drug: CMX157 · Drug: placebo

  • Experimental
    Group C

    CMX157, tablet, 25 mg, QD, 14 days versus placebo CMX157, placebo tablet, 25 mg, QD, 14 days

    Drug: CMX157 · Drug: placebo

  • Experimental
    Group D

    CMX157, tablet, 50 mg, QD, 14 days versus CMX157, placebo tablet, 50 mg, QD, 14 days

    Drug: CMX157 · Drug: placebo

  • Experimental
    Group E

    CMX157, tablet, 100 mg, QD, 14 days versus CMX157, placebo tablet, 100 mg, QD, 14 days

    Drug: CMX157 · Drug: placebo

Interventions

  • DrugCMX157

    Oral tablet

    Also known as: Lipid Conjugate TFV

  • Drugplacebo

    Oral tablet

06

What researchers measure

Primary outcomes

  1. Evaluation of the safety and tolerability of multiple oral doses of CMX157 at increasing dose levels.

    Capture adverse events, physical examinations, ECGs and clinical laboratory panels.

    Time frame: 28 days

Secondary outcomes

  1. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fasted state.

    Measuring Cmax: the peak plasma concentration.

    Time frame: 28 days

  2. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fed state.

    Measuring Cmax: the peak plasma concentration.

    Time frame: 28 days

  3. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fasted state.

    Measuring Tmax: the time Cmax was observed.

    Time frame: 28 days

  4. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fed state.

    Measuring Tmax: the time Cmax was observed.

    Time frame: 28 days

  5. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fasted state.

    Measuring AUC: area under the plasma concentration versus time curve.

    Time frame: 28 days

  6. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fed state.

    Measuring AUC: area under the plasma concentration versus time curve.

    Time frame: 28 days

  7. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fasted state.

    Measuring Cmin: minimum observed plasma concentration.

    Time frame: 28 days

  8. Evaluation of the pharmacokinetics of multiple doses of oral CMX157 in a fed state.

    Measuring Cmin: minimum observed plasma concentration.

    Time frame: 28 days

07

Study locations

1 site
  • Bangkok, Thailand
08

References and documents

Individual participant data

Plan to share: Yes

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Apr 2016, a primary completion of Aug 2016 and a completion of Sep 2016. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 30, 2015
First posted
Oct 23, 2015
Start
Apr 2016
Primary completionActual
Aug 2016
CompletionActual
Sep 2016
Last update
Feb 2, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 2, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02585440
Lead sponsor
ContraVir Pharmaceuticals, Inc.
Responsible party
Sponsor
First posted
Oct 23, 2015
Start date
Apr 2016
Primary completion
Aug 2016
Completion
Sep 2016
Last update
Feb 2, 2017

Study contacts

John Sullivan-Bolyai, MD, MPH
study chair · ContraVir

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2016. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Tenofovir exalidex

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