ClinicalTrials.gg
CompletedNCT01533961Updated Sep 18, 2015

Human African Trypanosomiasis: First in Man Clinical Trial of a New Medicinal Product, the SCYX-7158

A Phase 1 interventional study of SCYX-7158 and Placebo in Trypanosomiasis, Trypanosomiasis, African and Protozoan Infections, sponsored by Drugs for Neglected Diseases. Completed at 2 sites in France. Open to male participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-09-18.

Primary conditionTrypanosomiasis, AfricanRegistry: TrypanosomiasisReclassifiedWhy we changed it
Registry
Trypanosomiasis — the first condition term the registry derived for this study.
ClinicalTrials.gg
Trypanosomiasis, African
Why
  1. The study's listed conditions name Trypanosomiasis, African, a narrower term within Trypanosomiasis.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Drugs for Neglected Diseases · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
136
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Male
01

Study summary

This study is aimed at assessing the tolerability and pharmacokinetic parameters of SCYX-7158 in healthy volunteers. In animal models of both acute and chronic experimental Trypanosomiasis infections, SCYX-7158 shows highly promising efficacy.

Read the detailed description

The present study is designed to obtain safety, tolerability and PK data after single oral administration of increasing doses of SCYX-7158 in healthy male sub-Saharan African subjects. This study will also assess the impact on the relative bioavailability of SCYX-7158 administered as a capsule after single oral dose administration.

The study will be divided in 3 different parts. Study Part I will be a randomized, double-blind, placebo-controlled, single ascending dose study with SCYX-7158 administered as a capsule.

A other part is scheduled to evaluate the impact of activated charcoal intake on the PK characteristics of SCYX-7158 and determine the most adapted treatment schedule for charcoal to enhance SCYX-7158 elimination while allowing a sustained drug exposure likely to be therapeutically active.

A last part is planned to evaluate the pharmacokinetics of a new formulation (tablet) of SCYX-7158 in healthy male volunteers

02

Conditions studied

  • Trypanosomiasis
  • Trypanosomiasis, African
  • Protozoan Infections
  • Parasitic Diseases

Browse trials for

Keywords

  • neglected disease
  • africa
  • new drug
  • oral drug
  • parasite
03

In context

Trypanosomiasis, African Reclassified

26 studies on the registry are indexed under Trypanosomiasis, African; 1 is open to participants now.

This study's enrollment of 136 is below the median of 155 across 24 interventional studies indexed under Trypanosomiasis, African.

Browse Trypanosomiasis, African studies →

Lead sponsor

Drugs for Neglected Diseases is the lead sponsor of 58 studies on the registry; 3 are open to participants now.

Compared within Trypanosomiasis, African, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Trypanosomiasis. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Male
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

  • Male healthy volunteers 18 to 45 years of age,
  • All subjects to be of sub-Saharan African origins with both parents of Sub-Saharan African origins too,
  • Male subjects with a (BMI) calculated as weight in kg/(height in m2) from 18 to 28 kg/m2 at screening,
  • Able to communicate well with the Investigator and research staff and to comply with the requirements of the entire study,
  • Provision of written to participate as shown by a signature on the volunteer consent form,
  • Light smokers (less than 5 cigarettes per day) or subjects who are non-smokers. No smoking (or use of smoking substitute e.g. nicotine patch) is permitted from screening throughout the study,
  • Normal arterial blood pressure (BP) and pulse rate or, if abnormal, considered not by the principal Investigator. These will be measured after resting for 5 min.
  • Registered with the French Social Security in agreement with the French law on biomedical experimentation.

Exclusion criteria

Exclusion Criteria:

  • Who on direct questioning and physical examination have evidence of any acute or chronic disease, including known or suspected , or infection,
  • Who previously received SCYX-7158,
  • Who presented acute or chronic or history of symptoms of Gastro intestinal disturbances (GI) or on physical examination have evidence of any clinical signs of acute or chronic GI abnormality ( i.e hemorrhoids, GI bleeding...)
  • With any clinically significant abnormality following review of pre-study laboratory tests ( (ASAT) and alanine aminotransferase (ALAT) must be within normal ranges), vital signs, full physical examination and ,
  • Who are within the exclusion period defined in the National Register for Healthy Volunteers of the French Ministry of Health,
  • Who forfeit their freedom by administrative or legal award or who were under guardianship,
  • Unwilling to give their ,
  • Who have a positive laboratory test for Hepatitis B surface antigen (HbsAg), or anti-HIV 1/2 or anti- HCV antibodies
  • Who have a history of allergy, intolerance or photosensitivity to any drug,
  • Who have a history of serious allergy, asthma, allergic skin rash or sensitivity to any drug,
  • Who are known or suspected alcohol or drug abusers (more than 14 units of alcohol per week, one unit = 8 g or about 10 mL of pure alcohol),
  • Who drink more than 8 cups daily of beverage containing caffeine,
  • Who have a positive laboratory test for urine drug screening (opiates, cocaine, amphetamine, cannabis, benzodiazepines),
  • Who have undergone surgery or have donated blood within 12 weeks prior to the start of the study,
  • Who have taken any prescribed or over the counter drug (including antacid drug), with the exception of paracetamol (up to 3 g per day) within 2 weeks prior to the first dose administration,
  • Who have any clinical condition or prior therapy which, in the opinion of the Investigator, made the subject unsuitable for the study,
  • Who participated to any clinical trial with an drug in the past 3 months preceding study entry.
Terms in these criteria, in plain language(9)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

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.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
136 participants (actual)

Study arms

  • Experimental
    SCYX-7158

    In each dose group (8 subjects) , 6 Healthy Volunteers receive SCYX-7158

    Drug: SCYX-7158

  • Placebo comparator
    Placebo of SCYX-7158

    In each dose group (8 subjects) , 2 Healthy Volunteers receive placebo of SCYX-7158

    Drug: Placebo

Interventions

06

What researchers measure

Primary outcomes

  1. Occurence of adverse events (AEs)

    Monitoring for the occurrence of AEs. Changes in physical examination, vital signs (blood pressure and pulse rate), ECG, and clinical laboratory tests (biochemistry, hematology, and urinalysis).

    Time frame: 9 to 37 days, depending on the part of the study

Secondary outcomes

  1. Pharmacokinetic (blood concentration of SCYX-7158 and metabolite)

    Time frame: from pre-dose until 168 h post-dose.

  2. Pharmacokinetic (urine concentration of SCYX-7158 and metabolite)

    Time frame: from pre-dose until 168 h post-dose.

07

Study locations

2 sites
  • Optimed
    Grenoble, France
  • SGS Aster
    Paris, France
08

References and documents

Related links

09

Timeline

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

The record gives a start of Feb 2012, a primary completion of Mar 2015 and a completion of Mar 2015. 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
Feb 13, 2012
First posted
Feb 16, 2012
Start
Feb 2012
Primary completionActual
Mar 2015
CompletionActual
Mar 2015
Last update
Sep 18, 2015
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 Sep 18, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01533961
Lead sponsor
Drugs for Neglected Diseases
Responsible party
Sponsor
First posted
Feb 16, 2012
Start date
Feb 2012
Primary completion
Mar 2015
Completion
Mar 2015
Last update
Sep 18, 2015

Study contacts

Antoine Tarral, MD
study director · Drugs for Neglected Diseases initiative

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2012. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: SCYX 7158

Start the discussion