ClinicalTrials.gg
TerminatedNCT03354754Updated Oct 11, 2021Results posted

LYS228 PK, Clinical Response, Safety and Tolerability in Patients With Complicated Intra-abdominal Infection (cIAI)

A Phase 2 interventional study of LYS228 and Standard of care therapy in Intra-abdominal Infections, sponsored by Novartis Pharmaceuticals. Terminated at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2021-10-11.

Sponsored by Novartis Pharmaceuticals (part of Novartis) · Phase 2, Interventional, and Basic science

Why this study was terminated
The trial was closed as part of the out-licensure of the drug to Boston Pharmaceuticals, which will continue further clinical development of LYS228/BOS-228

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Phase
Phase 2
Study type
Interventional
Enrollment
3
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 29 studies in Intraabdominal Infections with a site in United States — 3 open to participants now, 5 under way, none of them phase 3. Intraabdominal Infections · United States.

Enrollment
23rd of 24
3 · median 144
Started
2018
with 4 others
Phase 2
9 of 29
1 open now
Registered
20th of 29
by date

Among the 29 studies in Intraabdominal Infections with a site in United States, this one is the 23rd largest by enrollment of the 24 interventional ones that give a count, is one of 5 that started in 2018, is one of 9 in phase 2, and was the 20th registered.

Intraabdominal Infections

129 studies on the registry are indexed under Intraabdominal Infections; 15 are open to participants now.

Browse Intraabdominal Infections studies →

Open to participants now

3 of the 29 studies in Intraabdominal Infections with a site in United States are open now. Recruiting first, the newest first:

All 3 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 10 Intraabdominal Infections studies recruiting now, 6 (60%) set no upper age limit and 3 (30%) stop at 75 or younger; 2 take children under 18; 2 take healthy volunteers.

This study: 18 Years to 65 Years · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 29 studies in Intraabdominal Infections with a site in United States, or all of them as a file.
02

Study summary

The purpose of the study was to evaluate whether LYS228 can be developed for the treatment of complicated intra-abdominal infections.

It was planned that LYS228 exposure across patients with varying renal function would be evaluated during the study to confirm that LYS228 concentrations are predicted to be adequate to treat the patient population. It was planned that the PK exposure of the initial 8 patients would be analyzed.

PK analysis was not conducted as per protocol the first analysis required 8 patients.

03

Conditions studied

  • Intra-abdominal Infections

Keywords

  • Intra-abdominal infection
  • LYS228
  • beta-lactam antibiotics
  • creatinine clearance
  • enterobacteriaceae
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

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 and female patients 18 to 85 years of age with visual confirmation (presence of pus within the abdominal cavity) of an intra-abdominal infection associated with peritonitis including at least one inclusionary diagnosis during surgical intervention.

Exclusion criteria

Exclusion Criteria

  • Any of the excluded diagnoses: abdominal wall abscess, small bowel obstruction, traumatic bowel perforation undergoing surgery within 12 hours, perforation of gastroduodenal ulcer with surgery within 24 hours, an intra-abdominal process that is not likely caused by infection.
  • Pre-operative treatment of any duration with non-study Drug systemic antibiotic therapy for peritonitis or abscess is not allowed unless certain criteria are met.
  • Concomitant bacterial infection at time of enrollment requiring non-Study Drug antibiotics and that may interfere with the evaluation of clinical response to the study antibiotic.
  • Known non-abdominal source of infection, including endocarditis, osteomyelitis, abscess, meningitis, or pneumonia diagnosed within 7 days prior to enrollment.
  • Patient has an Acute Physiology and Chronic Health Evaluation II (APACHE II) score > 30 or is considered, in the judgement of the investigator, unlikely to survive 4 weeks (e.g. rapidly progressive terminal illness, including septic shock).
  • Patients that meet sepsis criteria as defined by the quick sequential sepsis-related organ failure assessment (qSOFA).
  • Women of unless they are using highly effective methods of during dosing and for 7 days after stopping study treatment.
Terms in these criteria, in plain language(2)

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

05

Study design

Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
3 participants (actual)

Study arms

  • Experimental
    LYS228

    IV infusion every 6 hours for at least 5 days

    Drug: LYS228

  • Active comparator
    Standard of care

    IV infusion of standard of care antibiotics for at least 5 days

    Drug: Standard of care therapy

Interventions

  • DrugLYS228

    LYS228 IV infusion every 6 hours

  • DrugStandard of care therapy

    IV infusion of standard of care antibiotics

06

What researchers measure

Primary outcomes

  1. Clinical Success at Day 28

    Clinical success is defined as resolution, or substantial improvement (i.e. reduction of severity of all baseline signs and symptoms and worsening of none) of all or most baseline signs and symptoms of cIAI infection without the need for additional antibiotic therapy other than any oral antibiotics given to complete treatment at home following discontinuation of Study Drug and no drainage or surgical reintervention required 96 hours after the start of Study Drug.

    Time frame: Day 28

  2. Plasma Pharmacokinetics (PK) of LYS228: Area Under the Plasma Concentration-time Curve From Time Zero to the End of the Dosing Interval Tau (AUCtau)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

  3. Plasma Pharmacokinetics (PK) of LYS228: The Observed Maximum Plasma Concentration Following Drug Administration (Cmax)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

  4. Plasma Pharmacokinetics (PK) of LYS228: The Time to Reach the Maximum Concentration After Drug Administration (Tmax)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

  5. Plasma Pharmacokinetics (PK) of LYS228: The Systemic (or Total Body) Clearance From Plasma Following Intravenous Administration (CL)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

  6. Plasma Pharmacokinetics (PK) of LYS228: The Volume of Distribution at Steady State Following Intravenous Administration (Vss)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

  7. Plasma Pharmacokinetics (PK) of LYS228: The Terminal Elimination Half-life (T1/2)

    Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

    Time frame: Day 5

Secondary outcomes

  1. Number of Patients With Adverse Events

    Number of patients with at least one Adverse Event

    Time frame: Daily

  2. Microbiological Response at Day 28

    Microbiologic success at 28 days after randomization determined by microbial growth in culture from the intra-abdominal focus of infection when available or presumed eradication based on clinical success

    Time frame: Day 28

07

Results

Posted Oct 8, 2019

Participant flow

Approximately 60 patients were planned to be randomized to LYS228 or a comparator (standard of care therapy preferably piperacillin/tazobactam) in a 2:1 ratio.

Participant flow — Overall Study
MilestoneLYS228Standard of Care
Started21
Completed21
Not completed00

Outcome measures

PrimaryClinical Success at Day 28

Clinical success is defined as resolution, or substantial improvement (i.e. reduction of severity of all baseline signs and symptoms and worsening of none) of all or most baseline signs and symptoms of cIAI infection without the need for additional antibiotic therapy other than any oral antibiotics given to complete treatment at home following discontinuation of Study Drug and no drainage or surgical reintervention required 96 hours after the start of Study Drug.

Time frame:
Day 28
Reported as:
Count of participants · Participants
Clinical Success at Day 28
ParticipantsLYS228Standard of Care
Clinical Success at Day 2820
PrimaryPlasma Pharmacokinetics (PK) of LYS228: Area Under the Plasma Concentration-time Curve From Time Zero to the End of the Dosing Interval Tau (AUCtau)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

PrimaryPlasma Pharmacokinetics (PK) of LYS228: The Observed Maximum Plasma Concentration Following Drug Administration (Cmax)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

PrimaryPlasma Pharmacokinetics (PK) of LYS228: The Time to Reach the Maximum Concentration After Drug Administration (Tmax)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

PrimaryPlasma Pharmacokinetics (PK) of LYS228: The Systemic (or Total Body) Clearance From Plasma Following Intravenous Administration (CL)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

PrimaryPlasma Pharmacokinetics (PK) of LYS228: The Volume of Distribution at Steady State Following Intravenous Administration (Vss)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

PrimaryPlasma Pharmacokinetics (PK) of LYS228: The Terminal Elimination Half-life (T1/2)

Calculated based on LYS228 concentration in blood at different time points following drug administration on Day 5

Time frame:
Day 5

No measurements were reported for this outcome.

SecondaryNumber of Patients With Adverse Events

Number of patients with at least one Adverse Event

Time frame:
Daily
Reported as:
Count of participants · Participants
Number of Patients With Adverse Events
ParticipantsLYS228Standard of Care
Number of Patients With Adverse Events21
SecondaryMicrobiological Response at Day 28

Microbiologic success at 28 days after randomization determined by microbial growth in culture from the intra-abdominal focus of infection when available or presumed eradication based on clinical success

Time frame:
Day 28
Reported as:
Count of participants · Participants
Microbiological Response at Day 28
ParticipantsLYS228Standard of Care
Microbiological Response at Day 2820

Adverse events

Collected over Adverse events were collected from first dose of study treatment until day 28.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
LYS2280/2 (0%)0/2 (0%)2/2 (100%)
Standard of Care0/1 (0%)1/1 (100%)1/1 (100%)
Most frequent serious events
Most frequent serious events
EventLYS228Standard of Care
Appendicitis perforatedInfections and infestations0/21/1
Pulmonary embolismRespiratory, thoracic and mediastinal disorders0/21/1
Deep vein thrombosisVascular disorders0/21/1
Most frequent other events
Showing 10 of 16
Most frequent other events
EventLYS228Standard of Care
Oral candidiasisInfections and infestations0/21/1
Alanine aminotransferase increasedInvestigations0/21/1
Aspartate aminotransferase increasedInvestigations0/21/1
Blood alkaline phosphatase increasedInvestigations0/21/1
Gamma-glutamyltransferase increasedInvestigations0/21/1
DyspnoeaRespiratory, thoracic and mediastinal disorders0/21/1
AnaemiaBlood and lymphatic system disorders1/20/1
ConstipationGastrointestinal disorders1/20/1
DiarrhoeaGastrointestinal disorders1/20/1
DyspepsiaGastrointestinal disorders1/20/1

Baseline characteristics

Age, Continuous
Age, Continuous(years)LYS228Standard of CareTotal
Median63.5 (63 to 64)63 (63 to 63)63 (63 to 64)
Sex: Female, Male
Sex: Female, Male(Participants)LYS228Standard of CareTotal
Female000
Male213
Race (NIH/OMB)
Race (NIH/OMB)(Participants)LYS228Standard of CareTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White213
More than one race000
Unknown or Not Reported000
08

Study locations

1 site
  • Novartis Investigative Site
    Somers Point, New Jersey 08230, United States
09

References and documents

Publications

  • Dean CR, Barkan DT, Bermingham A, Blais J, Casey F, Casarez A, Colvin R, Fuller J, Jones AK, Li C, Lopez S, Metzger LE 4th, Mostafavi M, Prathapam R, Rasper D, Reck F, Ruzin A, Shaul J, Shen X, Simmons RL, Skewes-Cox P, Takeoka KT, Tamrakar P, Uehara T, Wei JR. Mode of Action of the Monobactam LYS228 and Mechanisms Decreasing In Vitro Susceptibility in Escherichia coli and Klebsiella pneumoniae. Antimicrob Agents Chemother. 2018 Sep 24;62(10):e01200-18. doi: 10.1128/AAC.01200-18. Print 2018 Oct. PubMed 30061293 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Undecided

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2018 to primary completion in Sep 2018, 4 months.

Results were first posted in Oct 2019, 1 year after primary completion.

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

Registered
Nov 22, 2017
First posted
Nov 28, 2017
StartActual
May 15, 2018
Primary completionActual
Sep 24, 2018
CompletionActual
Sep 24, 2018
Results first posted
Oct 8, 2019
Last update
Oct 11, 2021
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 11, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03354754
Responsible party
Sponsor
First posted
Nov 28, 2017
Start date
May 15, 2018
Primary completion
Sep 24, 2018
Completion
Sep 24, 2018
Results posted
Oct 8, 2019
Last update
Oct 11, 2021

Oversight

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

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This study is terminated, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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