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Postoperative Antibiotic Management Duration Following Surgery for Intravenous Drug Abuse (IVDA) Endocarditis (OPTIMAL)

Postoperative Antibiotic Management Duration Following Surgery for Intravenous Drug Abuse (IVDA) Endocarditis (OPTIMAL)

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05156437
Acronym
OPTIMAL
Enrollment
5
Registered
2021-12-14
Start date
2022-03-16
Completion date
2024-10-31
Last updated
2026-05-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endocarditis

Keywords

Intravenous Drug Abuse Endocarditis, Oral Antibiotics, IV Antibiotics

Brief summary

The purpose of this study is to determine the safety and compliance of initial intravenous (IV) antibiotics followed by oral antibiotic therapy following uncomplicated IVDA endocarditis. Endocarditis has a high rate of sickness and death, involves a long hospitalization and a long-term use of IV antibiotics necessitating six (6) weeks of in-patient hospital stay, and comes with a high cost.

Interventions

DRUGAmoxycillin, Cefalexin, Dicloxacillin, Linezolid, Levofloxacin, Rifampicin

Amoxycillin, Cefalexin, Dicloxacillin, Linezolid, Levofloxacin, Rifampicin

DRUGAmpicillin, Oxacillin, Vancomycin, Daptomycin, Ceftriaxone, Cefepime, Ceftaroline

Ampicillin, Oxacillin, Vancomycin, Daptomycin, Ceftriaxone, Cefepime, Ceftaroline

Sponsors

West Virginia University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Postoperative patients who have undergone valvar repair or replacement for IVDA endocarditis will be randomized into two arms: Experimental: 2 weeks of postoperative inpatient IV antibiotic therapy followed by 4 weeks of oral therapy with outpatient follow-up; Control: conventional 2 weeks of postoperative inpatient IV antibiotic therapy followed by 4 weeks of IV antibiotic therapy (inpatient or facility supervised if indwelling catheter utilized). Both groups will receive aggressive drug rehabilitation with mandatory participation in a formal psychiatric rehabilitation program for a minimum of 6 weeks (combined inpatient and outpatient), will be followed by Infectious Disease, will undergo monitoring of treatment efficacy with serum antibiotic levels, will undergo surveillance monitoring of treatment efficacy with blood cultures, will participate in a compliance tracking tool for medication administration (e.g. a centrally managed core site mobile Medisafe compliance program.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The age of the patient is ≥ 18. * The patient has undergone an urgent or emergent primary cardiac valvar operation as treatment for IVDA endocarditis, with blood cultures positive for Streptococcus, Enterococcus faecalis, Staphylococcus aureus, or coagulase-negative Staphylococci * The patient has received 2 weeks of postoperative inpatient IV antibiotic therapy with negative blood cultures and no residual active infection by imaging (i.e. computerized axial tomography, echocardiography) * The patient has the capacity to participate in a compliance tracking tool for medication administration (e.g. a centrally managed core site mobile Medisafe compliance https://www.medisafe.com/) as confirmed by both a physician and a care management team member

Exclusion criteria

* Inability to give informed consent * Residual infection requiring IV antibiotic therapy * Any persistent secondary noncardiac infection (e.g. infections of solid organs or joints) * Known poor compliance or deemed incapable to comply with the compliance tracking tool * Reduced absorption or inability to receive oral treatment due to a gastrointestinal disorder * Any infection involving a more virulent organisms, such as fungal infections or infections with Serratia or HACEK infections (Haemophilus, Aggregatibacter, Cardiobacterium, Eikenella, Kingella). * Cancer not otherwise in remission or in need of current or future oncologic therapy * Medically immunocompromised state * Reoperative valvar operation for IVDA endocarditis * History of habitual noncompliance * Pregnancy * Mental incapacity * Unable to perform local or institutional medical and psychiatric follow up * Unstable home environment * Inadequate access to mobile cell service (geographic/rurality)

Design outcomes

Primary

MeasureTime frameDescription
All-cause Mortality at Six (6) Months Post-surgery.Six monthsIncidences of all-cause mortality at six (6) months post-surgery.
All-cause Mortality at (12) Months Post-surgery.One yearIncidences of all-cause mortality at (12) months post-surgery.
Incidence of Recurrent Blood Culture Positive Infection (6 Month)Six monthsIncidence of recurrent blood culture positive infection (6 month)
Incidence of Recurrent Blood Culture Positive Infection (1 Year)One yearIncidence of recurrent blood culture positive infection (1 year)
Incidence of Cardiac Re-operation (6 Month)Six monthsIncidence of cardiac re-operation (6 Month)
Incidence of Cardiac Re-operation (1 Year)One yearIncidence of cardiac re-operation (1 Year)

Secondary

MeasureTime frameDescription
Readmission for Recurrent Infection or Cardiac Re-operation (6 Month)Six monthsIncidences of readmission for recurrent infection or cardiac re-operation (6 Month)
Readmission for Recurrent Infection or Cardiac Re-operation (1 Year)One yearIncidence of readmission for recurrent infection or cardiac re-operation (1 Year)
Cost of CareThrough study completion, an average of one yearCost of care

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORVinay Badhwar, MD

West Virginia University

Participant flow

Recruitment details

Participants were recruited from a population with substance use disorder and active or recent infective endocarditis requiring surgery. Recruitment and retention were difficult due to social instability, limited outpatient engagement, and challenges maintaining contact. Five participants enrolled, but all were lost to follow-up before completing therapy or reaching the first assessment, and no additional eligible participants could be retained.

Pre-assignment details

Five participants were enrolled and assigned to two study arms (Group I: 4; Group II: 1). After surgery and treatment initiation, all were lost to follow-up before completing the six-week therapy period or reaching any follow-up visit, resulting in 0 completions. The only reason for non-completion was loss to follow-up; no participants withdrew consent, had adverse events, or were removed. All were classified as "Not Completed-Lost to Follow-up."

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
5 Participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 6, 2026