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The Stanford Egg Freezing Study

NCT05842070 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 168

Last updated 2026-01-20

No results posted yet for this study

Summary

The purpose of this study is to see if the investigators can obtain non-inferior clinical outcomes (similar numbers of oocytes) using the Cardinal protocol, a cost-conscious, low-intensity egg freezing protocol, compared to other routinely used high-intensity clinic protocols. This is a new program for Stanford's Fertility Clinic, so the investigators are assessing patient experience and cost-benefit of a low-cost, low-intensity approach that has demonstrated non-inferiority in IVF for infertility treatment, but has not been similarly evaluated in egg freezing. All enrolled participants will choose the Cardinal protocol or the routine high-intensity protocol designated by their physician. The investigators will then assess number of eggs retrieved, as well as patient satisfaction, cost, and time needed off work to complete the egg freezing cycle. The study's findings could ultimately open the door to implementation of lower-cost standardized protocols that would be more affordable and accessible to people who may otherwise not be able to pursue fertility preservation.

Conditions

  • Fertility Issues
  • Reproductive Issues

Interventions

PROCEDURE

Low-Intensity Egg Freezing Protocol

The low-intensity egg freezing protocol involves fewer ultrasounds, bloodwork and injections, contributing to a lower cost. Otherwise, this protocol does not differ significantly from the other routine high-intensity clinic protocols.

PROCEDURE

High-Intensity Egg Freezing Protocol

The high-intensity egg freezing protocol is a routinely used clinic protocol where patients are coming for frequent ultrasounds and bloodwork, as well as more injections, contributing to a higher overall cost for egg-freezing.

Sponsors & Collaborators

Principal Investigators

  • Ruth Lathi, MD · Stanford University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-07-26
Primary Completion
2025-01-31
Completion
2025-04-04

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05842070 on ClinicalTrials.gov