D-PLEX 312 - Safety and Efficacy of D-PLEX in the Prevention of Post Abdominal Surgery Incisional Infection (SHIELD II) (D-PLEX312)

June 16, 2026 updated by: PolyPid Ltd.

D-PLEX 312 - Phase III, Prospective, Multinational, Multicenter, Randomized, Controlled, Two-arm, Double Blind Study to Assess Efficacy and Safety of D-PLEX In Prevention of Post Abdominal Surgery Incisional Infection (SHIELD II)

Phase III, Prospective, Multinational, Multicenter, Randomized, Controlled, Two-arm, Double Blind Study to Assess Efficacy and Safety of D-PLEX Administered Concomitantly with the Standard of Care (SoC), Compared to a SoC Treated Control Arm, in Prevention of Post Abdominal Surgery Incisional Infection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

D-PLEX is a new formulation of extended controlled release of Doxycycline in the applied area for about 30 days. This study is aimed to assess the safety and efficacy of D-PLEX in prevention of post abdominal surgery incisional infection.

The study population includes male and female, 18 years old and above at screening, undergoing an elective colorectal surgery involving colon or rectal resection, with or without a stoma formation, that includes at least 1 incision that is > 20cm (target incision).

Eligible and willing subjects will be randomly allocated into 2 blinded study arms, either to the investigational arm (D-PLEX + SoC) or to the control arm (SoC only) in a 1:1 ratio. Subjects will be stratified by type of prophylactic SoC (IV antibiotic only, IV antibiotic with mechanical bowel preparation or IV antibiotic with oral antibiotics combined with mechanical bowel preparation) and by region (US versus Europe + Israel).

D-PLEX will be applied during the surgery at the final stage of incision closure. All patients will be followed up for additional 5 visits over 2 months, for safety and incisional wound assessment. This will include blood tests for hematology and chemistry as well as physician's assessment of the incisional wound.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
975

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Bosnia and Herzegovina
      • Banja Luka, Bosnia and Herzegovina, 78000
        • University Clinical Centre of the Republic of Srpska
      • Tuzla, Bosnia and Herzegovina, 75000
        • University Clinical Center Tuzla
      • Zenica, Bosnia and Herzegovina, 72000
        • Cantonal Hospital Zenica
  • Georgia
      • Tbilisi, Georgia, 0114
        • LTD New Hospitals
      • Tbilisi, Georgia, 0102
        • LLC American Hospital Network
      • Tbilisi, Georgia, 0112
        • LTD "Israeli - Georgian Medical Research Clinic Healthycore"
      • Tbilisi, Georgia, 0186
        • LTD Multiprofile Clinic Consillium Medulla
  • Germany
      • Erlangen, Germany, 91054
        • University Hospital Erlangen
      • Münster, Germany, 48149
        • University of Muenster
  • Hungary
      • Baja, Hungary, 6500
        • Bajai Szent Rokus Korhaz, Sebeszeti Osztaly
      • Budapest, Hungary, 1145
        • Uzsoki Utcai Kórház, Sebészeti Osztály
      • Eger, Hungary, 3300
        • Heves Varmegyei Markhot Ferenc Oktatokorhaz es Rendelointezet Sebeszeti es Ersebeszeti osztaly
      • Gyöngyös, Hungary, 3200
        • Bugát Pál Kórház, Gasztroenterológia - Sebészet
      • Kecskemét, Hungary, 6000
        • Bács-Kiskun Megyei Kórház
      • Kistarcsa, Hungary, 2143
        • Pest Megyei Flór Ferenc Kórház Sebészeti Osztály
      • Nyíregyháza, Hungary, 4400
        • Szabolcs-Szatmar-Bereg Varmegyei Korhazak es Egyetemi Oktatokorhaz, Josa Andras Oktatokorhaz, Sebeszeti Osztaly
      • Szeged, Hungary, 6725
        • University of Szeged, Faculty of Medicine, Dep.of Surgery
      • Székesfehérvár, Hungary, 8000
        • Fejer-County Saint George University Teaching Hospital, Department of Surgery
  • Ireland
      • Drogheda, Ireland, A92 VW28
        • Our Lady of Lourdes Hospital
  • Israel
      • Beersheba, Israel, 8457108
        • Soroka Medical Center
      • Haifa, Israel, 3339419
        • Bnai Zion Medical Center
      • Haifa, Israel, 3436212
        • Carmel Medical Center
      • Jerusalem, Israel, 9372212
        • Shaare Zedek Medical Center
      • Nahariya, Israel, 2210001
        • Galilee Medical Center
      • Ramat Gan, Israel, 5262000
        • Sheba Medical Center
      • Rehovot, Israel, 7661041
        • Kaplan Medical Center
      • Ẕerifin, Israel, 70300
        • Assaf Harofeh Medical Center
  • Moldova
      • Chisinau, Moldova, MD2004
        • IMSP Institutul de Medicina Urgenta
      • Chisinau, Moldova, MD2025
        • IMSP Clinical republican Hospital "Timofei Mosneaga"
      • Chisinau, Moldova, MD2025
        • IMSP Institutul of Oncologic
      • Chisinau, Moldova, MD2025
        • IMSP Spitalul Clinic Republican "Timofei Mosneaga"
      • Chisinau, Moldova, MD2038
        • IMSP Spitalul Clinic Municipal "Gheorghe Paladi"
      • Chisinau, Moldova, MD2068
        • IMSP Spitalul Clinic Municipal "Sfanta Treime"
  • North Macedonia
      • Prilep, North Macedonia, 7500
        • PHI General Hospital "Borka Taleski" Prilep
      • Skopje, North Macedonia, 1000
        • PHI University Clinic for digestive Surgery
      • Skopje, North Macedonia, 1000
        • PHI University Clinic for Surgical Diseases "st.Naum Ohridski - Skopje"
      • Skopje, North Macedonia, 2000
        • PHI Clinical Hospital - Shtip
      • Strumica, North Macedonia, 2400
        • PHI General Hospital - Strumica
  • Poland
      • Lodz, Poland, 91-034
        • Centrum Medyczne Med-Gastr
      • Ostrów Mazowiecka, Poland, 07-300
        • Szpital Powiatowy im. Marii Skłodowskiej - Curie w Ostrowie Mazowieckiej SPZZOZ
  • Portugal
      • Aveiro, Portugal, 3810-164
        • Unidade Local de Saúde da Região de Aveiro E. P. E.
      • Braga, Portugal, 4710-243
        • Centro Clinico Academico de Braga Associação - Hospital de Braga
      • Guarda, Portugal, 6300-749
        • Unidade de Saúde Local da Guarda
  • Romania
      • Brasov, Romania, 500388
        • Sf. Constantin Hospital
      • Craiova, Romania, 200642
        • Spitalul Clinic Judetean de Urgenta Craiova, Sectia Cbirurgie Generala II
      • Craiova, Romania, 200642
        • Spitalul Clinic Judetean de Urgenta Craiova, Sectia Chirurgie Generala III
      • Timișoara, Romania, 300723
        • Spitalul Clinic JudeIean de Urgenta "Pius Brinzeu", Sectia Chirurgie Generala II
      • Târgu Mureş, Romania, 540103
        • Mures County Clinical Hospital
  • Serbia
      • Belgrade, Serbia, 11000
        • First Surgical Clinic
      • Kamenitz, Serbia, 21204
        • Oncology Institute of Vojvodina
      • Niš, Serbia, 18000
        • UCC Nis
      • Sremska Mitrovica, Serbia, 22000
        • General Hospital Sremska Mitrovica
      • Valjevo, Serbia, 14000
        • Health Center Valjevo
  • United States
    • Georgia
      • Augusta, Georgia, United States, 30912
        • Augusta Univeristy
    • Louisiana
      • New Orleans, Louisiana, United States, 70121
        • Ochsner Medical Center
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University School of Medicine
    • Pennsylvania
      • Hershey, Pennsylvania, United States, 17033
        • Penn State Health Milton S Hershey Medical Center
    • Texas
      • Dallas, Texas, United States, 75246
        • Baylor University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Subjects undergoing an elective colorectal surgery involving resection, with or without a stoma formation, that includes at least 1 abdominal incision that is >20cm (target incision).
  2. Subjects are preoperative hemodynamically stable. (BP≤180/110 and >90/60 mmHg, and HR≤120 and >60 bpm, and temperature ≤37.50C and >35.50C).
  3. Male or non-pregnant female.
  4. Female of child-bearing potential should have a negative pregnancy test (serum or urine dipstick) prior to index procedure.
  5. Subjects' age 18 years old and above at screening.
  6. Subjects who sign the written Informed Consent Form.
  7. Subjects who are willing and able to participate and meet all study requirements.
  8. Survival expectancy of at least sixty days post randomization.

Exclusion criteria:

  1. Subjects with suspected/diagnosed intestinal perforation, intra-abdominal abscess, or any emergency/urgent colorectal surgery with acute intestinal obstruction (ex. toxic colitis, ileus/sub-ileus, megacolon, diverticulitis, volvulus, etc.)
  2. Subjects who underwent an intra-abdominal surgery within the last six months prior to randomization.
  3. Subjects with any preoperative active infection or who are receiving any antibiotic therapy in the past one week prior to randomization, excluding pre-operative prophylaxis or antibiotics for the treatment of the disease that is the indication for surgery.
  4. Subjects undergoing concomitant major procedures in addition to the colorectal resection. Female sterilization surgeries (i.e. salpingo-oophorectomy etc.), involvement of a small bowel procedure or cholecystectomy may be allowed, pending an advanced consultation and approval from the Sponsor.
  5. Subjects who received any anti-cancer treatment within the last four weeks of surgery.
  6. Subjects who received radiation for colorectal cancer to the abdomen and/or pelvis area, within the last four weeks of the planned abdominal surgery.
  7. Subjects who received oral or IV Doxycycline or Tetracycline family antibiotics during the past four weeks prior to randomization.
  8. Subjects with known allergy to Doxycycline and/or to the tetracycline family of drugs or to the D-PLEX's excipients.
  9. Subjects with known allergies to more than three substances.
  10. Subjects with history of severe allergic reaction to any substance, having required treatment with intravenous steroids/intramuscular epinephrine, or who in the opinion of the PI is at high risk of developing severe allergic reactions.
  11. Uncontrolled medical condition.
  12. Subjects who underwent any abdominal surgery and current planned index surgery involves re-opening the scar of a prior abdominal surgery performed within the last three years.
  13. Any subject with an active malignancy or with malignancy that has not been in complete clinical remission and without maintenance chemo or immunotherapy for at least three years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Standard of Care
The SoC for prophylactic antibiotic treatment is based on international guidelines
Other: Standard of Care (SoC)
prophylactic, pre-operation per institution guidelines
Experimental: D-PLEX+SoC
D-PLEX is provided as an adjunct to the SoC treatment
Other: Standard of Care (SoC)
prophylactic, pre-operation per institution guidelines
Drug: D-PLEX
D-PLEX is a new formulation of extended release of Doxycycline.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Infection Rate as Measured by the Percentage of Subjects With SSI Event in the Target Incision Within 30 Days Post Index Surgery or Re-interventions or Death [for Any Reason] in the Population of Subjects With Target Incision Length >20 cm
Time Frame: By day 30 post surgery
The primary analysis is based on a composite treatment-failure (Yes/No) variable, indicating if a subject had at least one treatment-failure event, defined as follows: SSI, occurring within 30 days post abdominal surgery and determined by a blinded and independent adjudication committee, death (from any reason) or re-intervention at the target incision site within 30 days post surgery will be considered a treatment failure for the primary ITT analysis.
By day 30 post surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The Percentage of Subjects With at Least One SSI Event in the Target Incision
Time Frame: By day 30 post surgery
Infection rate as measured by the proportion of subjects with at least one abdominal incisional infection event, occurring within 30 days post abdominal (index) surgery and determined by a blinded and independent adjudication committee. [abdominal incisional infection is defined as Deep Incisional Surgical Site Infection (DSSI) and/or Superficial Incisional Surgical Site Infection (SSSI)].
By day 30 post surgery
Infection Rate as Measured by the Percentage of Subjects With SSI Event in the Target Incision Within 30 Days Post Index Surgery or Re-interventions or Death [for Any Reason] in the Population of Subjects With Target Incision Length >7 cm
Time Frame: 30 days post surgery
The primary analysis is based on a composite treatment-failure (Yes/No) variable, indicating if a subject had at least one treatment-failure event, defined as follows: SSI, occurring within 30 days post abdominal surgery and determined by a blinded and independent adjudication committee, and target incision length > 7 cm, death (from any reason) or re-intervention at the target incision site within 30 days post surgery will be considered a treatment failure.
30 days post surgery
Percentage of Subjects With at Least 1 Score of ASEPSIS> 20, Within 30 Days Post Abdominal (Index) Surgery
Time Frame: 30 days post surgery
ASEPSIS (Additional Treatment, Serous Discharge, Erythema, Purulent Exudates, Separation of Deep Tissue, Isolation of Bacteria, Stay as In Patient) is an acronym of wound assessment and treatment parameters, which provides numerically score during an inspection of the surgical site. The final score is being interpreted to severity of wound appearance and the clinical consequences of the infection.
30 days post surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
PolyPid Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 15, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 14, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 10, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 27, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 27, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 2, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 13, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 16, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • D-PLEX 312

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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