ClinicalTrials.gg
CompletedNCT03459391Updated Mar 8, 2018

Study to Assess Safety, Tolerability and Pharmacokinetics of XC221 in Healthy Volunteers

A Phase 1 interventional study of XC221 60 mg and XC221 200 mg in Influenza and Acute Respiratory Infection, sponsored by PHARMENTERPRISES LLC. Completed at 1 site in Russian Federation. Open to male participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-03-08.

Sponsored by PHARMENTERPRISES LLC · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled May 2017, registered Feb 2018).
Phase
Phase 1
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Male
01

Study summary

A double-blind, randomized, placebo-controlled, Phase I clinical study of the safety and tolerability of increasing doses of drug XC221 after single and repeated oral administration in healthy volunteers. The volunteers received the study drug once, and then continued daily intake for 5 days after a 6-day break. The primary objective of the study was to evaluate the safety and tolerability profile for drug XC221 after single and multiple administration based on the frequency and severity of adverse events and changes in vital signs, laboratory results, electrocardiography and results of the physical examination. The secondary objective of the study was to assess pharmacokinetics of active pharmaceutical substance XC221GI and its metabolite XC221A.

Read the detailed description

One Russian center was approved for participation in this study. One center was initiated. Healthy volunteers were enrolled in 1 center. The study consisted of 4 periods: screening, single administration, multiple administration and follow-up.

All eligible subjects were randomized into the study in appropriate cohort groups sequentially. Cohort 1 - XC221 or Placebo 60 mg once and then daily 5 days after a 6-day break; Cohort 2 - XC221 or Placebo 200 mg once and then daily during 5 days after a 6-day break. The decision regarding increasing of the study drug dose for a subsequent cohort was made by the Data Safety Monitoring Committee on the basis of preliminary safety results assessment. A total of 24 volunteers received XC221 (60 mg or 200 mg) and a total of 8 volunteers received the placebo during the study participation. The follow-up period lasted for 4 weeks.

02

Conditions studied

  • Influenza
  • Acute Respiratory Infection

Browse trials for

Keywords

  • Healthy volunteers
  • Phase I
  • PHARMENTERPRISES
03

In context

Influenza, Human

2,356 studies on the registry are indexed under Influenza, Human; 184 are open to participants now.

This study's enrollment of 32 is below the median of 227 across 1,957 interventional studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

PHARMENTERPRISES LLC is the lead sponsor of 11 studies on the registry; 1 is open to participants now.

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

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

  1. Non-smoking men aged 18 to 45 years (inclusive);
  2. Verified diagnosis "healthy" according to standard clinical, laboratory and instrumental methods of examination;
  3. Body mass >50 kg and of 18.5 to 30 kg/m2 (inclusive);
  4. Negative result of tests for alcohol and drugs;
  5. Consent to use reliable methods of during the study and 3 months after its completion (condoms with spermicide);
  6. Signed patient information sheet and form for participation in the study.

Exclusion criteria

Exclusion Criteria:

  1. Chronic diseases of cardiovascular, bronchopulmonary, neuroendocrine, musculoskeletal system and also disease of digestive tract, liver, kidneys, blood;
  2. Laboratory abnormalities at screening;
  3. Surgical interventions on digestive tract in the anamnesis (except for an appendectomies);
  4. Systolic pressure is less than 90 mm Hg. or more than 130 mm Hg., diastolic pressure is less than 60 mm Hg. or more than 85 mm Hg., pulse rate less than 60/min. or more than 80/min.;
  5. Course intake of medicinal products (including herbs and biologically active additives) for preventive or curative purposes within 1 month prior to screening;
  6. Antibodies to and virus, the presence of the surface antigen, a positive syphilis test;
  7. The presence of a sleep disorder (for example, night work, sleep disturbances, insomnia, recent return from another time zone, etc.);
  8. Signs of alcohol or drug abuse; taking alcohol or drugs during 4 days before screening; smoking 3 months before screening;
  9. History of allergies (including medicines and food products);
  10. Blood donation / plasma, surgical intervention (in a hospital environment) during 12 weeks before screening;
  11. Participation in other clinical trials or taking the study drug during 3 months before screening;
  12. Acute infectious diseases less than 4 weeks before the start of the study;
  13. Impossibility to understand or follow protocol instructions/
Terms in these criteria, in plain language(6)

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.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

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 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.

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.

05

Study design

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

Study arms

  • Experimental
    XC221 60 mg

    Cohort 1:16 subjects were randomized in a 3:1 ratio to be treated either with 60 mg XC221 (12 subjects) or placebo (4 subjects, see placebo arm).

    Drug: XC221 60 mg

  • Experimental
    XC221 200 mg

    Cohort 2: 16 subjects were randomized in a 3:1 ratio to be treated either with 200 mg XC221 (12 subjects) or placebo (4 subjects, see placebo arm).

    Drug: XC221 200 mg

  • Placebo comparator
    Placebo

    Placebo comparator arm consists of 8 subjects (4 subjects from each cohort).

    Drug: Placebo

Interventions

  • The volunteers received the study drug once, and then continued daily intake for 5 days after a 6-day break.

  • The volunteers received the study drug once, and then continued daily intake for 5 days after a 6-day break.

  • DrugPlacebo

    The volunteers received the study drug once, and then continued daily intake for 5 days after a 6-day break.

06

What researchers measure

Primary outcomes

  1. Number of Adverse events per treatment arm

    Adverse events have been classified according to CTCAE ver 4.03. Adverse events will be summarized descriptively by treatment arm. Verbatim terms will be mapped to preferred terms and organ systems using the current Medical Dictionary for Regulatory Activities version. For each preferred term, frequency counts and percentages will be calculated by cohort.The nature, severity, seriousness, and relationship to study medication will be summarized for all study subjects

    Time frame: Change from pre-dose to Day 28

Secondary outcomes

  1. Pharmacokinetics of XC221GI by assessing AUC0-inf

    Area under the curve "concentration of the drug-time" from the time of administration of the drug till infinity

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  2. Pharmacokinetics of XC221A by assessing AUC0-inf

    Area under the curve "concentration of the drug-time" from the time of administration of the drug till infinity

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  3. Pharmacokinetics of XC221GI by assessing Cmax

    Maximum plasma concentration

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  4. Pharmacokinetics of XC221A by assessing Cmax

    Maximum plasma concentration

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  5. Pharmacokinetics of XC221GI by assessing AUC0-t

    Area under the curve "concentration of the drug-time" from the time of administration of the drug till the time (t) the last blood sampling

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  6. Pharmacokinetics of XC221A by assessing AUC0-t

    Area under the curve "concentration of the drug-time" from the time of administration of the drug till the time (t) the last blood sampling

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  7. Pharmacokinetics of XC221GI by assessing Tmax

    Time to maximum drug concentration in the blood plasma administration

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  8. Pharmacokinetics of XC221A by assessing Tmax

    Time to maximum drug concentration in the blood plasma administration

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  9. Pharmacokinetics of XC221GI by assessing T1/2

    Terminal elimination half-life

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

  10. Pharmacokinetics of XC221A by assessing T1/2

    Terminal elimination half-life

    Time frame: Day 1 and 11 (Pre dose, 15 min, 30 min, 1,1.5, 2, 2.5, 3, 4, 5, 6, 8,12 and 16 h post dose), Day 2 and Day 12 (24 h ±10 min post dose), Day 3 and Day 13 (48 h ±10 min post dose), Day 4 and Day 14 (72 h ±10 min post dose), Day 7 to 10 (Pre dose)

07

Study locations

1 site
  • SBEI HPE The First Moscow State Medical University n.a. Sechenov of Ministry of Health of Russian Federation, University Hospital #2, Department of Development of New Medicines
    Moscow, 119435, Russian Federation
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2017 to primary completion in Sep 2017, 4 months.

Of 94 industry-sponsored phase 1 interventional studies under Influenza, Human, half reached primary completion within 9 months of starting (the median), counting those still running; a quarter within 4 and three quarters within 16. This study's 4 months is below that.

Counting every sponsor, half of 148 studies reached it within 11 months; a quarter within 4 and three quarters within 21.

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

Registered
Feb 26, 2018
First posted
Mar 8, 2018
StartActual
May 22, 2017
Primary completionActual
Sep 26, 2017
CompletionActual
Sep 26, 2017
Last update
Mar 8, 2018
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 Mar 8, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03459391
Lead sponsor
PHARMENTERPRISES LLC
Responsible party
Sponsor
First posted
Mar 8, 2018
Start date
May 22, 2017
Primary completion
Sep 26, 2017
Completion
Sep 26, 2017
Last update
Mar 8, 2018

Oversight

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

Not currently enrolling

This study is completed, as verified in Mar 2018. 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: XC221

Start the discussion