Vaginal Compared to Intramuscular Progesterone for Frozen Embryo Transfer

Shady Grove Fertility Reproductive Science Center

Status and phase: Completed; Phase 4

Conditions: Infertility

Treatments: Drug: Progesterone in Oil (PIO) Only; Drug: Endometrin® plus Progesterone in Oil (PIO)

Study type: Interventional

Funder types: Other; Industry

Identifiers

NCT02254577

SUSTAIN (Other Identifier)

13-0028

Details and patient eligibility

About

To determine whether the of vaginal progesterone replacement for frozen embryo transfer results in equivalent live birth rates to intramuscular injection progesterone replacement.

Full description

The purpose of this ongoing study is to look at whether Endometrin® (vaginal micronized progesterone tablets) supplemented by intramuscular injection of progesterone in oil (PIO) work as well as PIO alone for women undergoing transfer of frozen-thawed blastocyst(s). Another goal of the study is to determine whether patients prefer Endometrin or PIO. Endometrin® has been approved by the United States Food and Drug Administration, or FDA, "to support embryo implantation and early pregnancy by supplementation of corpus luteal function as part of an Assisted Reproductive Technology (ART) treatment program for infertile women." (FDA New Drug Approval Letter, Endometrin®, 2007). The use of Endometrin® (vaginal micronized progesterone tablets) in this study is investigational. An investigational use is one that is not approved by the U.S. Food and Drug Administration (FDA).

Approximately 1170 women between the ages of 18-48 who are having difficulty becoming pregnant and wish to undergo frozen embryo transfer will be asked to participate. The participants will be recruited from among patients of Shady Grove Fertility.

One-half of the participants who qualify and wish to take part in the ongoing study will be randomized (assigned by chance, like the flip of a coin) to receive Endometrin® and an intramuscular injection of PIO every third day. One-half will be randomized to receive an intramuscular injection of PIO every day. This study is a type of study called an "open label," assessor-blind study. This means that you and your doctor will know which treatment you are assigned and receive; however, the person analyzing the information obtained from the study will not know which patients received which study treatments.

Patients enrolling in the study will receive the medications for their frozen embryo transfer cycle free of charge.

Enrollment: 1,139 patients

Sex: Female

Ages: 18 to 48 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Signed informed consent
2. Female age between 18 and 48 years
3. Having available blastocyst(s) frozen by vitrification method at our center (Shady Grove Fertility).
4. Standard eligibility criteria to undergo frozen blastocyst transfer at Shady Grove Fertility.

Exclusion criteria

1. Requires fresh embryos or surrogate carrier
2. Embryos from frozen oocytes and embryos frozen more than once
3. Any embryo cryopreserved by slow freeze method and/or prior to blastocyst stage
4. Presence of any clinically relevant systemic disease contraindicated for ART
5. History of more than 3 failed cycles in previous ART attempts and/or more than 3 recurrent pregnancy losses after ET
6. Surgical or medical condition or requirement for medication, which may interfere with absorption, distribution, metabolism, or excretion of the drugs to be used
7. Subjects with a body mass index (BMI) of <18 or >38 kg/m2 at screening
8. Current or recent substance abuse, including alcohol and tobacco. (Note: Subjects who stopped tobacco usage at least 3 months prior to screening visit will be allowed)
9. Currently breast feeding, pregnant, or having (a) contraindication(s) to pregnancy
10. Refusal or inability to comply with the requirements of the protocol for any reason, including scheduled clinic visits and laboratory tests
11. Trophectoderm or blastomere biopsy of the blastocyst(s) to be transferred.
12. Documented intolerance or allergy to any of the medications used, including the study medication
13. Participation in any experimental drug study within 60 days prior to screening
14. If a subject undergoes more than two frozen blastocyst transfers meeting study criteria, she will only be eligible to enroll in the study for two of these.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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1,139 participants in 2 patient groups

Endometrin® plus Progesterone in Oil (PIO)

Experimental group

Description:

Subjects in all arms will undergo the standard monitoring appointments and therapies involved in a frozen embryo transfer cycle. Patients randomized to the Endometrin® plus PIO arm will take progesterone as 2 100mg tablets of Endometrin® inserted vaginally twice daily. In addition, on the first day of Endometrin® therapy, patients randomized to this arm will take a 50mg intramuscular injection (1mL) of PIO and will repeat this injection every third day. Patients in this arm will undergo Frozen Embryo Transfer on the fifth day of Endometrin® therapy.

Treatment:

Drug: Endometrin® plus Progesterone in Oil (PIO)

Progesterone in Oil (PIO) Alone

Active Comparator group

Description:

Subjects in all arms will undergo the standard monitoring appointments and therapies involved in a frozen embryo transfer cycle. Patients randomized to the PIO Only arm will take progesterone as a daily 50mg intramuscular injection (1mL) of PIO and will undergo Frozen Embryo Transfer on the sixth day of taking this medication.

Treatment:

Drug: Progesterone in Oil (PIO) Only