Clinical trial NCT03960970: Two-drug Antibiotic Prophylaxis in Scheduled Cesarean Deliveries
Official title: Azithromycin-based Extended-spectrum Prophylaxis in Scheduled Cesarean Deliveries
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE2
Conditions: Endometritis
Cesarean Section; Infection
Wound Infection
Keywords: Cesarean Delivery
Endometritis
Wound Infection
Azithromycin
Antibiotic Prophylaxis
Lead sponsor: RWJ Barnabas Health at Jersey City Medical Center
Sponsor class: OTHER
First posted: 2019-05-23
Enrollment: 800
Sex: FEMALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Pregnant patients admitted to Labor and Delivery unit between June 2019 and July 2020 will be randomized to received either standard prophylaxis or azithromycin and cephalosporin for preoperative prophylaxis after inclusion and exclusion criteria are met and informed consent for participation is signed.
Primary purpose: PREVENTION

Brief summary: Cesarean deliveries are the most common surgical procedure performed in the United States. A significant decrease in cesarean delivery associated maternal morbidity has been achieved with preoperative prophylactic single-dose cephalosporin, widely used before skin incision. Also, on laboring patients and/or with rupture of membranes, several studies suggest that adding azithromycin to standard cephalosporin prophylaxis is cost-effective and reduces overall rates of endometritis, wound infection, readmission, use of antibiotics and serious maternal events. Azithromycin has effective coverage against Ureaplasma, associated with increased rates of endometritis. Although two-drug regimen has been suggested for laboring and/or patients that undergo cesarean delivery, no studies have investigated the potential benefits of two-drug regimen in non-laboring patients.

Detailed description: Cesarean deliveries are the most common surgical procedure performed in the United States, and scheduled cesarean deliveries account for at least 40% of all cesarean deliveries every year. A significant decrease in cesarean delivery associated maternal morbidity has been achieved with preoperative prophylactic single-dose cephalosporin given within 60 minutes of skin incision. Also, on laboring patients and/or with rupture of membranes, several studies suggest that adding azithromycin to standard cephalosporin prophylaxis is not only cost-effective but reduces overall rates of endometritis and wound infection. Azithromycin provides effective coverage against Ureaplasma, commonly associated with increased rates of endometritis. Although two-drug regimen has been suggested for laboring and/or patients that undergo cesarean delivery, no studies have investigated the potential benefits of two-drug regimen in non-laboring patients. No increase in neonatal morbidity was noted with adjunctive azithromycin prophylaxis, including adverse events.

Eligibility criteria: Inclusion Criteria:

* Pregnant women 18 years or older
* Women undergoing primary or repeat cesarean delivery
* Singleton gestation
* Gestational age greater than 34 weeks
* Pregnant patients undergoing scheduled cesarean delivery
* Intact membranes
* Non-laboring
* Signed informed consent

Exclusion Criteria:

* Maternal age \< 18 years
* Multi-fetal gestation
* Known allergy to cephalosporin or azithromycin
* Patient unwilling or unable to provide consent
* Diagnosis of rupture of membranes
* Intraamniotic infection, or any other active bacterial infection (e.g. pyelonephritis, pneumonia, abscess) at time of randomization.
* Immunocompromising medical conditions: HIV positive with CD4 count below 200, chronic steroid use, current diagnosis of cancer and/or chemotherapy age use
* Emergent cesarean precluding consent or availability of study medication
* Need for hysterectomy at time of delivery
* Use of antibiotic in the 72 hours prior to admission, with exception to patient receiving antibiotics for GBS
* Inability to contact patient on postpartum period.

Primary outcomes:
measure: Rates of Endometritis
timeFrame: Up to 6 weeks after delivery
measure: Rates of Wound Infection
timeFrame: Up to 6 weeks after delivery
Secondary outcomes:
measure: Rates of Maternal Fever
timeFrame: Up to 6 weeks after delivery
measure: Rates of Maternal Postpartum Readmission or Unscheduled Visit
timeFrame: Up to 6 weeks after delivery
measure: Rates of Postpartum Antibiotic Use
timeFrame: Up to 6 weeks after delivery
measure: Rates of Serious Adverse Events
timeFrame: Up to 6 weeks after delivery
Other outcomes:
measure: Rates of Neonatal Intensive Care Unit (NICU) Admission
timeFrame: Up to 6 weeks after delivery
measure: Rates of Neonatal Readmission
timeFrame: Up to 6 weeks after delivery
Locations:
city: Jersey City
country: United States
facility: Jersey City Medical Center
state: New Jersey
Study officials:
affiliation: RWJ Barnabas Health at Jersey City Medical Center
name: Tali Wajsfeld, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Tita ATN, Rouse DJ, Blackwell S, Saade GR, Spong CY, Andrews WW. Emerging concepts in antibiotic prophylaxis for cesarean delivery: a systematic review. Obstet Gynecol. 2009 Mar;113(3):675-682. doi: 10.1097/AOG.0b013e318197c3b6.
citation: Andrews WW, Hauth JC, Cliver SP, Savage K, Goldenberg RL. Randomized clinical trial of extended spectrum antibiotic prophylaxis with coverage for Ureaplasma urealyticum to reduce post-cesarean delivery endometritis. Obstet Gynecol. 2003 Jun;101(6):1183-9. doi: 10.1016/s0029-7844(03)00016-4.
citation: Boggess KA, Tita A, Jauk V, Saade G, Longo S, Clark EAS, Esplin S, Cleary K, Wapner R, Letson K, Owens M, Blackwell S, Beamon C, Szychowski JM, Andrews W; Cesarean Section Optimal Antibiotic Prophylaxis Trial Consortium. Risk Factors for Postcesarean Maternal Infection in a Trial of Extended-Spectrum Antibiotic Prophylaxis. Obstet Gynecol. 2017 Mar;129(3):481-485. doi: 10.1097/AOG.0000000000001899.
citation: Tita AT, Szychowski JM, Boggess K, Saade G, Longo S, Clark E, Esplin S, Cleary K, Wapner R, Letson K, Owens M, Abramovici A, Ambalavanan N, Cutter G, Andrews W; C/SOAP Trial Consortium. Adjunctive Azithromycin Prophylaxis for Cesarean Delivery. N Engl J Med. 2016 Sep 29;375(13):1231-41. doi: 10.1056/NEJMoa1602044.
citation: Andrews WW, Shah SR, Goldenberg RL, Cliver SP, Hauth JC, Cassell GH. Association of post-cesarean delivery endometritis with colonization of the chorioamnion by Ureaplasma urealyticum. Obstet Gynecol. 1995 Apr;85(4):509-14. doi: 10.1016/0029-7844(94)00436-H.
citation: Harper LM, Kilgore M, Szychowski JM, Andrews WW, Tita ATN. Economic Evaluation of Adjunctive Azithromycin Prophylaxis for Cesarean Delivery. Obstet Gynecol. 2017 Aug;130(2):328-334. doi: 10.1097/AOG.0000000000002129.
citation: Tita AT, Hauth JC, Grimes A, Owen J, Stamm AM, Andrews WW. Decreasing incidence of postcesarean endometritis with extended-spectrum antibiotic prophylaxis. Obstet Gynecol. 2008 Jan;111(1):51-6. doi: 10.1097/01.AOG.0000295868.43851.39.
citation: ACOG Practice Bulletin No. 120: Use of prophylactic antibiotics in labor and delivery. Obstet Gynecol. 2011 Jun;117(6):1472-1483. doi: 10.1097/AOG.0b013e3182238c31. No abstract available.
citation: Skeith AE, Niu B, Valent AM, Tuuli MG, Caughey AB. Adding Azithromycin to Cephalosporin for Cesarean Delivery Infection Prophylaxis: A Cost-Effectiveness Analysis. Obstet Gynecol. 2017 Dec;130(6):1279-1284. doi: 10.1097/AOG.0000000000002333.
citation: Smith C, Egunsola O, Choonara I, Kotecha S, Jacqz-Aigrain E, Sammons H. Use and safety of azithromycin in neonates: a systematic review. BMJ Open. 2015 Dec 9;5(12):e008194. doi: 10.1136/bmjopen-2015-008194.
citation: Sutton AL, Acosta EP, Larson KB, Kerstner-Wood CD, Tita AT, Biggio JR. Perinatal pharmacokinetics of azithromycin for cesarean prophylaxis. Am J Obstet Gynecol. 2015 Jun;212(6):812.e1-6. doi: 10.1016/j.ajog.2015.01.015. Epub 2015 Jan 13.
citation: Smaill FM, Grivell RM. Antibiotic prophylaxis versus no prophylaxis for preventing infection after cesarean section. Cochrane Database Syst Rev. 2014 Oct 28;2014(10):CD007482. doi: 10.1002/14651858.CD007482.pub3.