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NCT04042077: DRESS

Delafloxacin IV and OS Administration Compared to Best Available Therapy in Patients With Surgical Site Infections

Terminated Phase 3 Results posted Last updated 2 February 2022
What this trial tests

Phase 3 trial testing Delafloxacin in Surgical Site Infection in 268 participants. Terminated before completion.

Timeline
25 September 2019
Primary endpoint
7 October 2020
28 October 2020

Quick facts

Lead sponsorMenarini Group
PhasePhase 3
StatusTerminated
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingsingle
Primary purposetreatment
Enrollment268
Start date25 September 2019
Primary completion7 October 2020
Estimated completion28 October 2020
Sites1 location across Italy

Drugs / interventions tested

Conditions studied

Sponsor

Menarini Group — full company profile →

Who can join

18 and older, any sex, with Surgical Site Infection. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of Participants With Clinical Success at Test Of Cure Visit Primary · 7-14 days after last dose

Clinical Success defined as the clinical response of "Cure" or "improved". Below the definitions: * Cure: The complete resolution of all baseline signs and symptoms of SSI * Improved: two or more signs and/or symptoms (but not all) were considered resolved thus the patient had improved to an extent that no additional antibiotic treatment was necessary.

GroupValue95% CI
Delafloxacin123
Best Available Therapy119
Hospital Infection Related Length of Stay (IRLOS) Secondary · up to 14 days

Length of Stay since beginning of therapy till patient stabilization and considered suitable for hospital discharge

GroupValue95% CI
Delafloxacin130.9± 71.87
Best Available Therapy140.3± 68.98
Hospital Length of Stay (LOS) Secondary · up to 45 days (Late Follow Up visit)

Length of Stay since Screening till actual hospital discharge

GroupValue95% CI
Delafloxacin178.8± 95.44
Best Available Therapy193.5± 119.72
Number of Participants Eligible to Switch to Oral Formulation According to Blinded Observer's Assessment Secondary · up to 14 days

Blinded assessment based on patient stabilization and ability to tolerate OS diet. In particular, the following details had to be met: Systolic blood pressure normal/not clinically significant abnormal No infection related tachycardia Afebrile status; body temperature \<38°C for at least 24 hours\* WBC count normalized/not clinically significant abnormal Patient able to tolerate PO diet/to take PO treatment and no GI absorption problem The measure counts only the participants eligible to switch, without taking into account the actually switched. Indeed, only linezolid in the BAT has an equiv

GroupValue95% CI
Delafloxacin129
Best Available Therapy129
Microbiological Response Secondary · up to 14 days (End Of Treatment visit) and 7-14 days after last dose (Test Of Cure visit)

Documented or presumed eradication or persistence

TOC Visit
GroupValue95% CI
Delafloxacin94
Best Available Therapy81
Delafloxacin11
Best Available Therapy21
EOT Visit
GroupValue95% CI
Delafloxacin80
Best Available Therapy64
Delafloxacin25
Best Available Therapy38

Adverse events — posted to ClinicalTrials.gov

Time frame: Adverse events were collected for each participant from the time of ICF signature (Screening) up to to LPLV, i.e. for maximum 45 days.. Reporting threshold: 1%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Delafloxacin
Serious: 9/134 (7%)
Deaths: 4/134
Best Available Therapy
Serious: 14/132 (11%)
Deaths: 1/132
Linezolid
Serious: 1/8 (13%)
Deaths: 0/8
Vancomycin
Serious: 0/2 (0%)
Deaths: 0/2
Piperacillin/Tazobactam
Serious: 10/68 (15%)
Deaths: 0/68
Tigecycline
Serious: 3/54 (6%)
Deaths: 1/54

Serious adverse events (23 terms)

ReactionSystemDelafloxacinBest Available TherapyLinezolidVancomycinPiperacillin/TazobactamTigecycline
pulmonary embolismRespiratory, thoracic and mediastinal disorders
angina pectorisCardiac disorders
cardiac arrestCardiac disorders
enterocutaneous fistulaGastrointestinal disorders
ileusGastrointestinal disorders
intestinal perforationGastrointestinal disorders
small intestinal obstructionGastrointestinal disorders
deathGeneral disorders
malaiseGeneral disorders
abdominal wall abscessInfections and infestations
clostridium difficile colitisInfections and infestations
gas gangreneInfections and infestations
infectionInfections and infestations
septic shockInfections and infestations
wound infectionInfections and infestations
abdominal wound dehiscenceInjury, poisoning and procedural complications
postoperative wound complicationsInjury, poisoning and procedural complications
wound dehiscenceInjury, poisoning and procedural complications
cerebrovascular accidentNervous system disorders
pleural effusionRespiratory, thoracic and mediastinal disorders
pulmonary artery thrombosisRespiratory, thoracic and mediastinal disorders
surgerySurgical and medical procedures
deep vein thrombosisVascular disorders
Other adverse events (25 terms — click to expand)

ReactionSystemDelafloxacinBest Available TherapyLinezolidVancomycinPiperacillin/TazobactamTigecycline
diarrhoeaGastrointestinal disorders
HypokalaemiaInvestigations
headacheNervous system disorders
nauseaGastrointestinal disorders
pyrexiaGeneral disorders
hypophosphataemiaInvestigations
pruritusSkin and subcutaneous tissue disorders
hypertensionVascular disorders
phlebitisVascular disorders
White blood cell count increasedInvestigations
anaemiaBlood and lymphatic system disorders
anemia folate deficiencyBlood and lymphatic system disorders
anemia vitamin B12 deficiencyBlood and lymphatic system disorders
Iron deficiency anemiaBlood and lymphatic system disorders
thyroid massEndocrine disorders
pancreatic calcificationGastrointestinal disorders
device related infectionInfections and infestations
post-operative wound infectionInfections and infestations
urinary tract infectionInfections and infestations
Blood alkaline phosphatase increasedInvestigations
Blood potassium decreasedInvestigations
hypomagnaesemiaInvestigations
Vitamin D deficiencyMetabolism and nutrition disorders
paraesthesiaNervous system disorders
vaginal haemorrhageReproductive system and breast disorders

Most-reported serious reactions: pulmonary embolism, angina pectoris, cardiac arrest, enterocutaneous fistula, ileus, intestinal perforation, small intestinal obstruction, death.

Data from ClinicalTrials.gov NCT04042077 adverse events section.

Sponsor's own description

The purpose of this study is to assess the efficacy and safety of delafloxacin administered as IV and oral formulation in comparison with Best Available Therapy (BAT) in patients with superficial or deep incisional surgical site infection following a cardiothoracic/related leg or abdominal surgery.

Publications & conference data

3 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Antimicrobial approach of abdominal post-surgical infections.
    Fiore M, Corrente A, Di Franco S, Alfieri A, et al · · 2023 · cited 6× · PMID 38222012 · DOI 10.4240/wjgs.v15.i12.2674
  2. The efficacy and adverse events of delafloxacin in the treatment of acute bacterial infections: A systematic review and meta-analysis of randomized controlled trials.
    He R, Lin F, Yu B, Qiu J, et al · · 2022 · cited 4× · PMID 36249780 · DOI 10.3389/fphar.2022.975578
  3. A Randomized, Observer-Blinded, Active-Controlled, Phase IIIb Study to Compare IV/Oral Delafloxacin Fixed-Dose Monotherapy With Best Available Treatments in a Microbiologically Enriched Population With Surgical Site Infections: The DRESS Study.
    Belev N, Tein A, Mangialardi G, Nuti A, et al · · 2025 · PMID 40908975 · DOI 10.1093/ofid/ofaf476

Verify or expand the search:

Other trials of Delafloxacin

Trials testing the same drug.

Other recruiting trials for Surgical Site Infection

Currently open trials in the same condition.

Other Menarini Group trials

Trials by the same sponsor.

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Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04042077.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing