Clinical trial NCT05139498: Conservative Management for PAS Pilot
Official title: Conservative Management as an Alternative to Hysterectomy for Placenta Accreta Spectrum: a Pilot Randomized Controlled Trial.
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Placenta Accreta
Keywords: Pregnancy
Lead sponsor: University of Utah
Sponsor class: OTHER
First posted: 2021-12-01
Enrollment: 32
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 99
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Conservative in situ management is a promising alternative treatment to hysterectomy for patients with placenta accreta spectrum and may be safer and preferable for some patients. This study will assess feasibility of a future randomized clinical trial comparing these treatments and provide novel data to inform shared decision-making and cost-effective care for patients with this deadly pregnancy disorder.

Detailed description: Placenta accreta spectrum (PAS) is an extremely morbid and increasingly common pregnancy condition that often results in massive obstetric hemorrhage. The standard treatment in the United States is hysterectomy, but this treatment is complex, morbid, and costly. A promising alternative for PAS treatment is conservative in situ management (CM), a strategy in which the placenta is left in the uterus. Unfortunately, there are insufficient data available to compare outcomes of these two treatments because past studies are limited by non-randomized study designs, minimal inclusion of patient values in making treatment decisions, and nominal consideration of economic barriers to care. A large clinical trial comparing PAS treatments is needed. But there are key logistic barriers to an adequately powered trial, including questions of whether patients will enroll and adhere to randomization allocation. This pilot trial will evaluate the feasibility of randomizing patients to CM versus hysterectomy for PAS.

While pilot studies cannot make final assessments of safety and efficacy between interventions, safety and efficacy will be monitored, including those related to hemorrhage, transfusion, infection and re-operation.

Eligibility criteria: Inclusion Criteria:

* Age 18 and older
* History of cesarean delivery AND placenta previa OR anterior low-lying placenta AND suspected of having PAS on prenatal imaging (ultrasound/MRI)
* Patients who would typically be recommended for hysterectomy
* Planned delivery between 34w0d and 36w0d gestation.

Exclusion Criteria:

* Plan to delivery before neonatal viability (\<24 weeks gestation)
* Hospitalized for antenatal hemorrhage
* Have a low antenatal suspicion for PAS based on imaging
* Are pregnant with multiples (twins, triplets)
* Have a uterine fetal demise

Primary outcomes:
measure: Number of patients completing the surgical treatment to which they are allocated
timeFrame: Day of delivery
Secondary outcomes:
measure: Number of eligible people approached for enrollment.
timeFrame: 20 weeks gestation through day of delivery
measure: Number of eligible people randomized.
timeFrame: From time of consent up to one week (1-7 days) before planned delivery
measure: Number of enrolled completing hysterectomy on day of delivery.
timeFrame: Day of delivery
measure: Number of enrolled completing conservative management on day of delivery.
timeFrame: Day of delivery
measure: Number of enrolled who don't complete their allocated treatment (drop-out).
timeFrame: Up to 6 weeks postpartum
measure: Number of enrolled who are lost to follow-up through study end (inverse of retention).
timeFrame: Up to 6 weeks postpartum
measure: Number of enrolled completing full postpartum follow-up visit schedule.
timeFrame: Up to 6 weeks postpartum
Other outcomes:
Locations:
city: Salt Lake City
country: United States
facility: University of Utah
state: Utah
Study officials:
affiliation: University of Utah
name: Brett Einerson, MD
role: PRINCIPAL_INVESTIGATOR
References: