ClinicalTrials.gg
CompletedNCT02440633Updated Oct 21, 2016Results posted

A Phase 1,Open -Label Study to Assess the Absorption, Metabolism and Excretion of 14C-OPS-2071 Following a Single Oral Dose to Healthy Male Japanese Subjects

A Phase 1 interventional study of 14C-OPS-2071 in Bacterial Enteritis, sponsored by Otsuka Pharmaceutical Co., Ltd.. Completed at 1 site in United Kingdom. Open to male participants aged 35 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-10-21.

Sponsored by Otsuka Pharmaceutical Co., Ltd. (part of Otsuka Holdings Co., Ltd.) · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
8
Allocation
Not applicable
Ages
35 Years to 55 Years
Sex
Male
01

Study summary

To obtain absorption, metabolism and excretion data for parent drug and any metabolites.

02

Conditions studied

  • Bacterial Enteritis

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03

In context

Enteritis

34 studies on the registry are indexed under Enteritis; 7 are open to participants now.

This study's enrollment of 8 is below the median of 53 across 26 interventional studies indexed under Enteritis.

Browse Enteritis studies →

Lead sponsor

Otsuka Pharmaceutical Co., Ltd. is the lead sponsor of 143 studies on the registry; 11 are open to participants now.

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

04

Who can participate

Ages eligible
35 Years to 55 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

  • Healthy males
  • (BMI) between 18.5 and 25.0 kg/m2, inclusive
  • Subjects will have given their written to participate in the study and to abide by the study restrictions

Exclusion criteria

Exclusion Criteria:

  • Subjects who have a significant history of alcoholism or drug/chemical abuse, as determined by the Investigator.
  • Subjects who smoke, or who have used nicotine within 3 months prior to screening..
  • Subjects who have a significant history of drug allergy, as determined by the Investigator.
  • Subjects who have any abnormal physical examination finding.
  • Subjects who have any clinically significant medical history, as determined by the Investigator.
  • Subjects who are exposed to radiation as a result of their occupation.
  • Subjects who have had an X ray or CT scan, or who have participated in any trial involving a radiolabelled product or have been exposed to radiolabelled substances within 12 months prior to dose administration.
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.

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.

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Experimental
    14C-OPS-2071

    Suspension containing 50 mg of 14C-OPS-2071

    Drug: 14C-OPS-2071

Interventions

  • Drug14C-OPS-2071

    Subjects will swallow Single 25 mL of suspension containing 50 mg of 14C-OPS-2071 directly.

06

What researchers measure

Primary outcomes

  1. The Amounts of Radioactivity Excreted in Urine and Faeces

    A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We evaluated the cumulative excretion of total radioactivity (%) in feces and urine, up to 168 hours postdose.

    Time frame: up to144-168h postdose.

  2. Area Under Curve (AUC) of Total Radioactivity in Plasma and Whole Blood

    A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We measured total radioactivity in plasma and whole blood each. We evaluated AUC 0-168h of total radioactivity in plasma and whole blood each. The AUCs in plasma and whole blood are of total radioactivity including the parent and metabolites.

    Time frame: predose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120, 144, and 168 h postdose.

  3. AUC of OPS-2071 in Plasma

    A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We measured OPS-2071 concentration in plasma and evaluated AUC 0-168h of OPS-2071 in plasma.

    Time frame: predose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120, 144, and 168 h postdose.

07

Results

Posted Aug 24, 2016

Participant flow

Participant flow — Overall Study
Milestone14C-OPS-2071
Started8
Completed8
Not completed0

Outcome measures

PrimaryThe Amounts of Radioactivity Excreted in Urine and Faeces

A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We evaluated the cumulative excretion of total radioactivity (%) in feces and urine, up to 168 hours postdose.

Time frame:
up to144-168h postdose.
Reported as:
Mean · percentage of administered dose
The Amounts of Radioactivity Excreted in Urine and Faeces
percentage of administered doseFecesUrineTotal
The Amounts of Radioactivity Excreted in Urine and Faeces78.0 ± 13.16.08 ± 1.7184.1 ± 12.7
PrimaryArea Under Curve (AUC) of Total Radioactivity in Plasma and Whole Blood

A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We measured total radioactivity in plasma and whole blood each. We evaluated AUC 0-168h of total radioactivity in plasma and whole blood each. The AUCs in plasma and whole blood are of total radioactivity including the parent and metabolites.

Time frame:
predose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120, 144, and 168 h postdose.
Reported as:
Mean · μg eq.·h/L
Area Under Curve (AUC) of Total Radioactivity in Plasma and Whole Blood
μg eq.·h/LPlasmaWhole Blood
Area Under Curve (AUC) of Total Radioactivity in Plasma and Whole Blood649.0 ± 486.0411.0 ± 73.9
PrimaryAUC of OPS-2071 in Plasma

A single dose of 14C-OPS-2071was administered as an oral suspension under fasting conditions on the morning of Day 1. We measured OPS-2071 concentration in plasma and evaluated AUC 0-168h of OPS-2071 in plasma.

Time frame:
predose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120, 144, and 168 h postdose.
Reported as:
Mean · μg·h/L
AUC of OPS-2071 in Plasma
μg·h/LPlasma
AUC of OPS-2071 in Plasma392.0 ± 95.8

Adverse events

Collected over From informed Consent up to 22 days post dose. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
14C-OPS-2071—0/8 (0%)4/8 (50%)
Most frequent other events
Most frequent other events
Event14C-OPS-2071
DiarrhoeaGastrointestinal disorders2/8
DyspepsiaGastrointestinal disorders1/8
GastroenteritisInfections and infestations1/8
NasopharyngitisInfections and infestations1/8
Alanine aminotransferase increaseInvestigations1/8
HeadacheNervous system disorders1/8
Arthropod biteInjury, poisoning and procedural complications1/8

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)14C-OPS-2071
<=18 years0
Between 18 and 65 years8
>=65 years0
Age, Continuous
Age, Continuous(years)14C-OPS-2071
Mean42.0 ± 4.8
Sex: Female, Male
Sex: Female, Male(Participants)14C-OPS-2071
Female0
Male8
Region of Enrollment
Region of Enrollment(participants)14C-OPS-2071
United Kingdom8
08

Study locations

1 site
  • Leeds, United Kingdom
09

Timeline

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

The record gives a start of May 2015, a primary completion of Aug 2015 and a completion of Aug 2015. It does not say whether these dates are actual or estimated.

Results were first posted in Aug 2016, 1 year after primary completion.

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

Registered
May 1, 2015
First posted
May 12, 2015
Start
May 2015
Primary completionActual
Aug 2015
CompletionActual
Aug 2015
Results first posted
Aug 24, 2016
Last update
Oct 21, 2016
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 Oct 21, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02440633
Responsible party
Sponsor
First posted
May 12, 2015
Start date
May 2015
Primary completion
Aug 2015
Completion
Aug 2015
Results posted
Aug 24, 2016
Last update
Oct 21, 2016

Study contacts

Yoshitaka Kotobuki
study director · Small Global, Division of New Product Evaluation and Development

Oversight

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

Not currently enrolling

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

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