Optimal Antibiotics for Operated Diabetic Foot Infections

NCT ID: NCT04081792

Last Updated: 2025-06-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

643 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-04

Study Completion Date

2025-03-01

Brief Summary

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Diabetic foot problems, especially infections (DFI), require multiple resources including iterative surgeries and amputations, long-lasting antibiotic therapies, education, off-loading and eventually revascularization and appropriate foot-ware. Treatment is complicated, multidisciplinary, and marked with a high risk of recurrences.

This is a retrospective and prospective cohort with side studies of pathologies and academic research questions that cannot be separated from each other.

The investigators establish a retro-and prospective cohort of diabetic foot problems (ambulatory and hospitalized patients) and perform side studies to reduce the incidence of complications, and to reduce recurrences of DFI, cost and adverse events related to therapies.

Cohort: Prospective and retrospective cohort of all diabetic foot problems with emphasis on surgical and infectious variables.

Trial 1 (Randomized trial on residual infection after amputation):

Determination of the level of amputation per MRI followed by a randomization concerning the duration of post-amputation systemic antibiotic therapy, if there is residual bone infection.

Trial 2 (Randomized trial on infection without amputation):

Determination of the duration of systemic antibiotic therapy in diabetic foot infections without Amputation of the infection.

Detailed Description

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Trial 1: At enrollment (Day 1), the investigator will prescribe empiric antibiotic treatment based on instructions provided in the protocol and determine the most appropriate route of administration (oral or IV) according to the patient's condition. Patients will be randomized in the ratio 1:1 between 1 versus 4 days for post-amputation soft tissue infections; and between 1 versus 3 weeks if there is microbiologically proven residual bone infection/contamination in the proximal stump samples of the residual bone.

Trial 2: At enrollment (Day 1), the investigator will prescribe empiric antibiotic treatment based on instructions provided in the protocol and determine the most appropriate route of administration (oral or IV) according to the patient's condition. Patients will be randomized in the ratio 1:1 between 10 versus 20 days for post-debridement soft tissue infections; and between 3 versus 6 weeks for diabetic foot osteomyelitis post.-debridement (without amputation).

Conditions

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Diabetic Foot Infection Surgical Wound Antibiotic Side Effect Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1. Trial (Amputation) Soft tissue - short antibiotic arm

The intervention group consists of 1 day of postoperative antibiotic therapy for eventual residual soft tissue infection after amputation.

Group Type EXPERIMENTAL

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

1. Trial (Amputation) Soft tissue - long antibiotic arm

The control group consists of 4 days duration of postoperative antibiotic therapy for eventual residual soft tissue infection after amputation.

Group Type ACTIVE_COMPARATOR

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

1. Trial (Amputation) Bone - short antibiotic arm

The intervention group consists of 1 week of postoperative antibiotic therapy for eventual residual bone infection / contamination in the proximal bone stump after amputation.

Group Type EXPERIMENTAL

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

1. Trial (Amputation) Bone - long antibiotic arm

The intervention group consists of 3 weeks of postoperative antibiotic therapy for eventual residual bone infection / contamination in the proximal bone stump after amputation.

Group Type ACTIVE_COMPARATOR

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

2.Trial (soft tissue infection) - short antibiotic arm

The intervention group consists of 10 days of post-debridement antibiotic therapy for non-amputated diabetic foot soft tissue infection.

Group Type EXPERIMENTAL

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

2. Trial (soft tissue infection) - long antibiotic arm

The control group consists of 20 days of post-debridement antibiotic therapy for non-amputated diabetic foot soft tissue infection.

Group Type ACTIVE_COMPARATOR

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

2. Trial (osteomyelitis) - short antibiotic arm

The intervention group consists of 3 weeks of post-debridement antibiotic therapy for non-amputated diabetic foot osteomyelitis.

Group Type EXPERIMENTAL

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

2. Trial (osteomyelitis) - long antibiotic arm

The control group consists of 6 weeks of post-debridement antibiotic therapy for non-amputated diabetic foot osteomyelitis.

Group Type ACTIVE_COMPARATOR

Antibiotic therapy

Intervention Type PROCEDURE

Postoperative randomizations regarding the duration of systemic antibiotics

Interventions

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Antibiotic therapy

Postoperative randomizations regarding the duration of systemic antibiotics

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years
* Diabetic foot infections or ischemia/necrosis with surgical amputation/disarticulation level in vicinity of MRI signs of infection
* At least two months of follow-up from hospitalization
* Patient signing to participate, including acceptance of local wound care, -off-loading and arterial re-vascularization (if clinically indicated).

Exclusion Criteria

* At least 5 cm of distance between amputation level and infection.
* Any concomitant infection requiring more than 5 days of systemic antibiotic therapy
* Eventual osteosynthesis material not removed
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Balgrist University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ilker Uçkay, PD MD

Role: STUDY_DIRECTOR

Balgrist University Hospital, Zurich, Switzerland

Locations

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Balgrist University Hospital

Zurich, Canton of Zurich, Switzerland

Site Status

Countries

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Switzerland

References

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Uckay I, Jornayvaz FR, Lebowitz D, Gastaldi G, Gariani K, Lipsky BA. An Overview on Diabetic Foot Infections, including Issues Related to Associated Pain, Hyperglycemia and Limb Ischemia. Curr Pharm Des. 2018;24(12):1243-1254. doi: 10.2174/1381612824666180302145754.

Reference Type BACKGROUND
PMID: 29508677 (View on PubMed)

Coster MC, Rosengren BE, Bremander A, Brudin L, Karlsson MK. Comparison of the Self-reported Foot and Ankle Score (SEFAS) and the American Orthopedic Foot and Ankle Society Score (AOFAS). Foot Ankle Int. 2014 Oct;35(10):1031-6. doi: 10.1177/1071100714543647. Epub 2014 Jul 11.

Reference Type BACKGROUND
PMID: 25015390 (View on PubMed)

Rossel A, Lebowitz D, Gariani K, Abbas M, Kressmann B, Assal M, Tscholl P, Stafylakis D, Uckay I. Stopping antibiotics after surgical amputation in diabetic foot and ankle infections-A daily practice cohort. Endocrinol Diabetes Metab. 2019 Feb 6;2(2):e00059. doi: 10.1002/edm2.59. eCollection 2019 Apr.

Reference Type RESULT
PMID: 31008367 (View on PubMed)

Uckay I, Berli M, Sendi P, Lipsky BA. Principles and practice of antibiotic stewardship in the management of diabetic foot infections. Curr Opin Infect Dis. 2019 Apr;32(2):95-101. doi: 10.1097/QCO.0000000000000530.

Reference Type RESULT
PMID: 30664029 (View on PubMed)

Gariani K, Lebowitz D, von Dach E, Kressmann B, Lipsky BA, Uckay I. Remission in diabetic foot infections: Duration of antibiotic therapy and other possible associated factors. Diabetes Obes Metab. 2019 Feb;21(2):244-251. doi: 10.1111/dom.13507. Epub 2018 Sep 21.

Reference Type RESULT
PMID: 30129109 (View on PubMed)

Waibel F, Berli M, Catanzaro S, Sairanen K, Schoni M, Boni T, Burkhard J, Holy D, Huber T, Bertram M, Laubli K, Frustaci D, Rosskopf A, Botter S, Uckay I. Optimization of the antibiotic management of diabetic foot infections: protocol for two randomized controlled trials. Trials. 2020 Jan 8;21(1):54. doi: 10.1186/s13063-019-4006-z.

Reference Type DERIVED
PMID: 31915048 (View on PubMed)

Provided Documents

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Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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DFI_Cohort

Identifier Type: -

Identifier Source: org_study_id

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