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D-PLEX

Phase 3

Surgical Site Infection | Small molecule | Other |PolyPid Ltd.|Last Updated: Apr 21, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,777
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04411199D-PLEX 312 - Safety and Efficacy of D-PLEX in the Prevention of Post Abdominal Surgery Incisional Infection (SHIELD II)PHASE3 COMPLETED 800Dec 15, 2020May 10, 2025Jun 10, 202558 United States, Bosnia and Herzegovina +11
NCT04233424D-PLEX 311: Safety and Efficacy of D-PLEX in the Prevention of Post Abdominal Surgery Incisional InfectionPHASE3 COMPLETED 977Jun 24, 2020Sep 2, 2022Apr 21, 202662 United States, Bulgaria +8
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Study Endpoints
Primary Endpoints
To assess the anti-infective efficacy of D-PLEX over a period of 30 days post operation, by preventing surgical site infection (SSI), defined as superficial and deep infection, in the target incision(s), compared to the SoC treated control.
By day 30 post surgery

Infection rate as measured by the proportion of subjects with at least one abdominal incisional infection event, as determined by a blinded and independent adjudication committee, within 30 days post abdominal surgery. \[abdominal incisional infection is composed of Deep Incisional Surgical Site Infection (DSSI) and Superficial Incisional Surgical Site Infection (SSSI)\].within 30 days post abdominal surgery and determined by a blinded and independent adjudication committee. All-cause mortality and re-interventions in the target incision within 30 days post index surgery will be analysed as treatment failure. Incisional infection event only, occurred within 30 days post abdominal surgery and determined by a blinded and independent adjudication committee. \[abdominal incisional infection is defined as Deep Incisional Surgical Site Infection (DSSI) and/or Superficial Incisional Surgical Site Infection (SSSI)\].

Safety of D-PLEX in Prevention of Post Abdominal Surgery
By day 60 post surgery

Safety parameters will be evaluated by adverse events

Safety of D-PLEX in Prevention of Post Abdominal Surgery Incisional
By day 60 post surgery

Incisional wound healing will be assessed by a blinded Investigator, using a visual examination as well as Modified Vancouver Scar Scale wound assessment questionnaires. The questionnaire has a numeric scale from 0-4 in Vascularity, Pigmentation, Pliability and height

Secondary Endpoints
Assessment of Infection rate in patient undergoing abdominal colon surgery
At study visits: day 1, day 5, day 14 and day 30 post surgery
Infection Rate
30 days post-surgery
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
D-PLEX+SoCEXPERIMENTALD-PLEX is provided to suitable and willing study subjects as an adjunct to the SoC treatment
Standard of CareOTHERThe SoC for prophylactic antibiotic treatment is based on international guidelines
Interventions
NameTypeDescription
D-PLEXDRUGD-PLEX is a new formulation of extended release of Doxycycline. Each 5g D-PLEX vial contains 54.6mg Doxycycline free base (1.09%), which is equivalent to 63mg Doxycycline hyclate (1.26%). D-PLEX is supplied as a sterile powder to be reconstituted to paste in the operating room, using standard aseptic techniques and is intended for single administration. The non-active components of the extended release antibiotic formulation are β Tri-Calcium polymer and a lipid matrix. All formulation components are biodegradable.
Standard of Care (SoC)OTHERprophylactic, pre-operation per institution guidelines
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Eligibility Criteria
Age Range18 Years — 99 Years
SexALL
Healthy VolunteersNo
Study Sites58

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≤1...

Countries:United StatesBosnia and HerzegovinaGeorgiaGermanyHungaryIrelandIsraelMoldovaNorth MacedoniaPolandPortugalRomaniaSerbiaBulgariaCroatiaCzechiaSlovakia
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