ClinicalTrials.gg
CompletedNCT02473640Updated Nov 27, 2018Results posted

A Study Evaluating the Effect of Esomeprazole on SYN-004 Degradation of Ceftriaxone In Adults With an Ileostomy

A Phase 1/2 interventional study of SYN-004 and Esomeprazole in Healthy Volunteers With Ileostomy, sponsored by Theriva Biologics, Inc.. Completed at 2 sites in Canada. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-11-27.

Sponsored by Theriva Biologics, Inc. · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

A Phase 1b/2a, Multi-Center, Open-Label, 2-Period, Fixed-Sequence Study Evaluating the Effect of Esomeprazole on SYN-004 Degradation of Ceftriaxone In Healthy Adult Subjects with a Functioning Ileostomy

Read the detailed description

This is a Phase 1b/2a, randomized, multi-center, open-label study. Twenty otherwise healthy subjects with functioning ileostomies who are between the ages of 18 and 80 years, inclusive, will be enrolled. The entire duration of the study may be up to 63 days (from Screening to the end-of-study [EOS] visit).

02

Conditions studied

  • Healthy Volunteers With Ileostomy
03

In context

Lead sponsor

Theriva Biologics, Inc. is the lead sponsor of 8 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 80 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

  • The subject has a functioning ileostomy that has been in place for ≥ 3 months.
  • The subject is male or female between the ages of 18 and 80 years, inclusive.
  • Other than a functioning ileostomy, the subject is free from illnesses or disease.

Exclusion criteria

Exclusion Criteria:

  • Subjects who have active hepatic, small intestine, or biliary tract disease.
  • Subjects who have active ulcerative colitis, Crohn's disease, other inflammatory bowel disease.
  • Subjects with known requiring treatment \< 6 months prior to study screening.
  • Subjects who have, in the opinion of the investigator, significant concurrent medical illness.
  • Subjects who are currently taking concomitant medications which may interfere with study evaluation.
  • Subjects who have received an drug within 30 days or within a time period consistent with a of 5 half-lives, whichever is longer, of the first dose of ceftriaxone.
  • Subjects with a known history of allergy to any cephalosporin, penicillin or any β-lactam antibiotic.
  • Subjects who have known active malabsorption syndromes(s) that, in the judgment of the investigator, could compromise the objectives of the study.
  • Subjects who have used any oral, intramuscular, or IV anti-microbial medication during the last 3 week
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.

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

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.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    150 mg SYN-004

    There will be 2 in-house treatment periods: in Treatment Period 1, subjects will receive 2 oral doses of 150 mg SYN-004 (two 75 mg capsules) and 1g ceftriaxone, and in Treatment Period 2, subjects will receive 2 oral doses of 150mg SYN-004 (two 75 mg capsules) and 1g ceftriaxone in the presence of steady-state esomeprazole; Treatment Periods 1 and 2 will be separated by a 5- to 7-day run-in phase, during which subjects will self-administer 40 mg of esomeprazole once daily (QD) in the morning, at home.

    Drug: SYN-004 · Drug: Esomeprazole · Drug: Ceftriaxone

Interventions

06

What researchers measure

Primary outcomes

  1. Ceftriaxone Concentration in Intestinal Chyme Period 1

    Ceftriaxone concentration in the presence of SYN-004 and the absence of esomeprazole.

    Time frame: 0-8.5 hours

  2. Ribaxamase Concentration in Intestinal Chyme Period 1

    Concentrations of ribaximase (SYN-004) in intestinal chyme

    Time frame: 0-8.5 hours

  3. Ceftriaxone Concentration in Intestinal Chyme Period 2

    Ceftriaxone concentration in the presence of SYN-004 and the absence of esomeprazole.

    Time frame: 0-8.5 hours

  4. Ribaxamase Concentration in Intestinal Chyme Period 2

    Concentrations of ribaximase (SYN-004) in intestinal chyme

    Time frame: 0-8.5 hours

07

Results

Posted Feb 19, 2018

Participant flow

Treatment Period 1
Participant flow — Treatment Period 1
Milestone150 mg SYN-004
Started15
Completed14
Not completed1
Withdrew: Adverse event1
Run-in Phase
Participant flow — Run-in Phase
Milestone150 mg SYN-004
Started14
Completed14
Not completed0
Treatment Period 2
Participant flow — Treatment Period 2
Milestone150 mg SYN-004
Started14
Completed14
Not completed0

Outcome measures

PrimaryCeftriaxone Concentration in Intestinal Chyme Period 1

Ceftriaxone concentration in the presence of SYN-004 and the absence of esomeprazole.

Time frame:
0-8.5 hours
Reported as:
Mean · ug/mL
Ceftriaxone Concentration in Intestinal Chyme Period 1
ug/mL150 mg SYN-004
Hour 00.00 ± 0.00
Hour 0.50.00 ± 0.00
Hour 1.55.60 ± 4.39
Hour 2.5150.90 ± 68.43
Hour 3.5231.40 ± 144.06
Hour 4.5173.00 ± 98.58
Hour 5.529.00 ± 25.40
Hour 6.51.40 ± 0.82
Hour 7.50.10 ± 0.10
Hour 8.52.00 ± 1.70
PrimaryRibaxamase Concentration in Intestinal Chyme Period 1

Concentrations of ribaximase (SYN-004) in intestinal chyme

Time frame:
0-8.5 hours
Reported as:
Mean · ng/mL
Ribaxamase Concentration in Intestinal Chyme Period 1
ng/mL150 mg SYN-004
Hour 00.00 ± 0.00
Hour 0.52 ± 2.1
Hour 1.511 ± 9.1
Hour 2.5131 ± 116.8
Hour 3.56727 ± 3983.1
Hour 4.556795 ± 25155.4
Hour 5.573090 ± 29292.8
Hour 6.5103171 ± 52510.2
Hour 7.5153274 ± 87804.1
Hour 8.5111946 ± 71722.7
PrimaryCeftriaxone Concentration in Intestinal Chyme Period 2

Ceftriaxone concentration in the presence of SYN-004 and the absence of esomeprazole.

Time frame:
0-8.5 hours
Reported as:
Mean · ug/mL
Ceftriaxone Concentration in Intestinal Chyme Period 2
ug/mL150 mg SYN-004
Hour 00.00 ± 0.00
Hour 0.50.00 ± 0.00
Hour 1.59.80 ± 8.43
Hour 2.531.70 ± 22.57
Hour 3.542.80 ± 30.44
Hour 4.580.50 ± 56.28
Hour 5.50.80 ± 0.63
Hour 6.50.10 ± 0.10
Hour 7.50.00 ± 0.00
Hour 8.50.20 ± 0.14
PrimaryRibaxamase Concentration in Intestinal Chyme Period 2

Concentrations of ribaximase (SYN-004) in intestinal chyme

Time frame:
0-8.5 hours
Reported as:
Mean · ng/mL
Ribaxamase Concentration in Intestinal Chyme Period 2
ng/mL150 mg SYN-004
Hour 00.00 ± 0.00
Hour 0.5436 ± 435.6
Hour 1.5281 ± 206.6
Hour 2.597745 ± 74180.
Hour 3.566936 ± 46358.5
Hour 4.563696 ± 26962.2
Hour 5.542316 ± 15114.4
Hour 6.538874 ± 21552.0
Hour 7.534756 ± 19642.6
Hour 8.535092 ± 20734.9

Adverse events

Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Treatment Period 10/15 (0%)0/15 (0%)3/15 (20%)
Run-in Period0/14 (0%)0/14 (0%)3/14 (21.4%)
Treatment Period 20/14 (0%)0/14 (0%)2/14 (14.3%)
Most frequent other events
Most frequent other events
EventTreatment Period 1Run-in PeriodTreatment Period 2
Abdominal DiscomfortGastrointestinal disorders0/152/140/14
HeadacheNervous system disorders1/150/141/14
Vessel puncture site bruiseGeneral disorders0/150/141/14
Pain in extremityMusculoskeletal and connective tissue disorders0/151/140/14
RhinorrhoeaRespiratory, thoracic and mediastinal disorders0/151/140/14
NauseaGastrointestinal disorders1/150/140/14
Stoma site hemorrhageInjury, poisoning and procedural complications1/150/140/14
Postmenopausal hemorrhageReproductive system and breast disorders1/150/140/14
ErythemaSkin and subcutaneous tissue disorders1/150/140/14
Hot flushVascular disorders1/150/140/14

Baseline characteristics

Age, Continuous
Age, Continuous(years)150 mg SYN-004
Mean45.1 ± 16.4
Sex: Female, Male
Sex: Female, Male(Participants)150 mg SYN-004
Female4
Male11
Race (NIH/OMB)
Race (NIH/OMB)(Participants)150 mg SYN-004
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White14
More than one race0
Unknown or Not Reported1
08

Study locations

2 sites
  • Synthetic Biologics Investigative Site
    Edmonton, Alberta, Canada
  • Synthetic Biologics Investigative Site
    Montreal, Canada
09

References and documents

Publications

  • Kokai-Kun JF, Roberts T, Coughlin O, Sicard E, Rufiange M, Fedorak R, Carter C, Adams MH, Longstreth J, Whalen H, Sliman J. The Oral beta-Lactamase SYN-004 (Ribaxamase) Degrades Ceftriaxone Excreted into the Intestine in Phase 2a Clinical Studies. Antimicrob Agents Chemother. 2017 Feb 23;61(3):e02197-16. doi: 10.1128/AAC.02197-16. Print 2017 Mar. PubMed 28052855 ↗
10

Timeline

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

The record gives a start of Jun 2015, a primary completion of Apr 2016 and a completion of Apr 2016. It does not say whether these dates are actual or estimated.

Results were first posted in Feb 2018, 1 year 10 months after primary completion.

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

Registered
Jun 12, 2015
First posted
Jun 16, 2015
Start
Jun 2015
Primary completionActual
Apr 2016
CompletionActual
Apr 2016
Results first posted
Feb 19, 2018
Last update
Nov 27, 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 Nov 27, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02473640
Lead sponsor
Theriva Biologics, Inc.
Responsible party
Sponsor
First posted
Jun 16, 2015
Start date
Jun 2015
Primary completion
Apr 2016
Completion
Apr 2016
Results posted
Feb 19, 2018
Last update
Nov 27, 2018

Oversight

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

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Studies of the drug tested here: SYN-004

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