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CompletedNCT02962531IX-0106 RBAUpdated Jan 13, 2017

Relative Bioavailability Study of IX-01 Caplet Versus Aqueous Dispersion and Food Effect of the Caplet in Healthy Males

A Phase 1 interventional study of IX-01 caplets 1600 mg (4 x 400 mg), fasted and IX-01 caplets 1600 mg (4 x 400 mg), fed in Healthy, sponsored by Ixchelsis Limited. Completed at 1 site in United States. Open to male participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-01-13.

Sponsored by Ixchelsis Limited · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Male
01

Study summary

An open-label, randomized, three-period, three-way crossover trial of single doses of IX-01 in 12 healthy male subjects. In each period, subjects will receive a single oral dose of 1600 mg IX-01, either as an aqueous dispersion in a fasted state, or as caplets in the fed or fasted state

Read the detailed description

This is a Relative Bioavailability Study to compare single oral doses of 1600mg IX-01, either as an aqueous dispersion in a fasted state, or as caplets in the fed or fasted state. Each volunteer in the study will receive each of the formulations listed below. Each formulation will be separated by at least a 5-day drug-free (washout) period.

  • Treatment A: A single 1600 mg (4 x 400 caplets) oral dose of IX-01 under fasted conditions
  • Treatment B: A single 1600 mg (4 x 400 caplets) oral dose of IX-01 under fed conditions
  • Treatment C: A single 1600 mg aqueous dispersion (20 mL) oral dose of IX-01 under fasted conditions.

In the fasted treatment periods, dosing will follow an overnight fast of at least 10 hours.

In the fed treatment period, following an overnight fast of at least 10 hours, a standard high-calorie, high-fat breakfast meal will be given 30 minutes prior to administration of the study drug.

There will be a final follow-up visit 7-10 days after the final dose of study medication.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

Ixchelsis Limited 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 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

  • between 18 and 30 kg/m2
  • Body weight of ˃60 kg (132 lbs) at screening
  • Able to understand the nature of the trial and any hazards of participating. Ability to communicate satisfactorily with the investigator and to participate in, and comply with the requirements of the entire trial
  • Willing to comply with the requirements of the trial
  • Willing to give written consent to participate
  • Willing and able to remain in the study unit for the entire duration of each confinement period and return for outpatient visits
  • Willing and able to consume the entire high-calorie, high-fat breakfast meal in the designated timeframe required during fed study period
  • Vital signs at both screening and at baseline within: heart rate: 50-90 beats per minute; systolic blood pressure: 100-130 mmHg; diastolic: 60-90 mmHg

Exclusion criteria

Exclusion Criteria:

  • abnormal history, physical findings, , or laboratory values at screening that could interfere with the objectives of the trial or safety of the volunteer, including any of the following:
  • Lipid and/or liver function test results >1.25 times or another clinical laboratory result judged clinically significant
  • An of >1.2 or a count \<150 x10\^3/mL
  • History of unexplained syncope
  • Family history of unexplained sudden death or sudden death due to long syndrome
  • QTcF interval >450 msec at screening
  • Bundle branch block or another conduction abnormality during an ECG, other than mild first degree atrio-ventricular block, judged clinically significant
  • Irregular rhythms during an ECG, other than sinus arrhythmia or occasional supraventricular ectopic beats, judged clinically significant
  • T-wave configuration of insufficient quality for determination of QT interval, as assessed by ECG and judged clinically significant by the Investigator
  • Presence of acute or chronic illness or history of chronic illness sufficient to invalidate participation in the trial or make study participation unnecessarily hazardous
  • Impaired gastrointestinal, endocrine, thyroid, hepatic, cardiovascular, respiratory, hematological, renal or neurological function, diabetes mellitus, coronary heart disease, or history of any psychotic mental illness
  • Surgery (e.g. stomach bypass) or medical condition that might affect absorption, metabolism, or elimination of medicines
  • Presence or history of severe adverse reaction to any drug and/or a history of skin reactions (rashes) to any drug
  • Previous allergic response which involved hives, swelling, shortness of breath, or anaphylaxis
  • Has used any over-the-counter medications, nutritional or dietary supplements, herbal preparations, or vitamins, except short courses of medication (such as acetaminophen), that could interfere with subject safety or the integrity of the trial data within 7 days prior to the first dose of medication
  • Any prescription medication within 14 days prior to the first dose of study medication
  • Participation in another clinical trial within 60 days prior to the first dose of study medication
  • Previous participation in this trial or any other clinical trial of an oxytocin receptor antagonist
  • Presence or history of drug or alcohol abuse, or intake of more than 21 units of alcohol weekly or more than 5 cigarettes daily
  • Unwilling or unable to comply with all protocol requirements
  • Positive urine screen for drugs of abuse
  • Positive for surface antigen, antibody or at screening or previously treated for hepatitis B, hepatitis C, or Human Immunodeficiency Virus infection
  • Donated blood or plasma within 30 days prior to the first dose of study medication
  • Employee of the investigator site or any company involved in sponsoring, organizing, or conducting the trial, or immediate family of the employee
Terms in these criteria, in plain language(11)

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.

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.

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.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

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.

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.

05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Treatment A

    A single 1600 mg (4 x 400 caplets) oral dose of IX-01 under fasted conditions

    Drug: IX-01 caplets 1600 mg (4 x 400 mg), fasted

  • Experimental
    Treatment B

    A single 1600 mg (4 x 400 caplets) oral dose of IX-01 under fed conditions

    Drug: IX-01 caplets 1600 mg (4 x 400 mg), fed

  • Experimental
    Treatment C

    A single 1600 mg aqueous dispersion (20 mL) oral dose of IX-01 under fasted conditions.

    Drug: IX-01 aqueous dispersion 1600 mg (20 mL), fasted

Interventions

06

What researchers measure

Primary outcomes

  1. Pharmacokinetic parameter peak plasma concentration of IX-01 (C max)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  2. Pharmacokinetic parameter time of peak plasma concentration of IX-01 (t max)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  3. Pharmacokinetic parameter terminal half-life (t 1/2)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  4. Pharmacokinetic parameter elimination rate constant (K el)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  5. Relative bioavailability of the caplet formulation of IX-01 compared with the aqueous dispersion formulation (fasted)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  6. Pharmacokinetic parameter area under the concentration-time curve (AUC 0-inf)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  7. area under the concentration-time curve from 0 up to the time of last quantifiable concentration (AUC last)

    Relative bioavailability of the caplet formulation of IX-01compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  8. The relative bioavailability of IX-01, as judged by AUC 0-inf (F rel)

    Relative bioavailability of the caplet formulation of IX-01 compared with the aqueous dispersion formulation when administered in the fasted state

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  9. Comparison of Maximum Plasma Concentration [Cmax] in fed versus fasted states

    To determine the effect of a high-fat meal on the pharmacokinetic profile of the IX-01 caplet formulation

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  10. Comparison of Area Under the Curve [AUC] in fed versus fasted states

    To determine the effect of a high-fat meal on the pharmacokinetic profile of the IX-01 caplet formulation

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  11. Comparison of Time to Maximum Plasma Concentration [Tmax] in fed versus fasted states

    To determine the effect of a high-fat meal on the pharmacokinetic profile of the IX-01 caplet formulation

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

  12. Comparison of the Area Under the Curve [AUC] in fed versus fasted states

    To determine the effect of a high-fat meal on the pharmacokinetic profile of the IX-01 caplet formulation

    Time frame: pre-dose and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours post-dose

Secondary outcomes

  1. Safety monitoring - adverse events, laboratory data, ECGs, vital signs

    To monitor the safety and tolerability of IX-01

    Time frame: Day 0 to Day 21

07

Study locations

1 site
  • Worldwide Clinical Trials Early Phase Services, LLC
    San Antonio, Texas 78217, United States
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
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Nov 2016, a primary completion of Dec 2016 and a completion of Dec 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
Oct 24, 2016
First posted
Nov 11, 2016
Start
Nov 2016
Primary completionActual
Dec 2016
CompletionActual
Dec 2016
Last update
Jan 13, 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 Jan 13, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02962531
Lead sponsor
Ixchelsis Limited
Responsible party
Sponsor
First posted
Nov 11, 2016
Start date
Nov 2016
Primary completion
Dec 2016
Completion
Dec 2016
Last update
Jan 13, 2017

Oversight

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

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This study is completed, as verified in Jan 2017. You cannot join it, but the record below documents what was studied.

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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.

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Studies of the drug tested here: IX-01

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