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Individualized Prolonged Luteal Support After Fresh Embryo Transfer in Women With Low Progesterone (ProLIS)

2026年5月29日 更新者:University Hospital, Montpellier

Interest of Individualized Prolongation of Subcutaneous Luteal Phase Support up to 8 Weeks for Patients Pregnant After a Fresh Embryo Transfer and With Low Serum Progesterone Level at Pregnancy Test - a Multicentric Randomized Double Blinded Controlled Trial

The goal of this clinical trial is to compare live birth rate in a control group versus an interventional group in subjects aged 18 to 37, pregnant after a fresh embryo transfer and with a serum progesterone level below 17 ng/mL on the day of pregnancy test while using vaginal progesterone as a luteal support. .

This is the first randomized controlled trial to assess the benefit of prolonged subcutaneous progesterone administration in patients with a positive pregnancy test (Bêta chorionique gonadotropic hormone: β-hCG >100 IU/L) after fresh transfer and low progesterone level (<17 ng/mL).

Half the participants will be offered a an extension of luteal phase support , by subcutaneous progesterone supplementation for 6 weeks, the other half will have placebo injections. A double-blind, placebo-controlled, randomized design was chosen to prevent selection bias and ensure the comparability of both study arms.

調査の概要

詳細な説明

Introduction:

Progesterone is essential for implantation and early pregnancy maintenance. After ovarian stimulation for In vitro fertilization (IVF), luteal phase insufficiency may occur, requiring luteal phase support (LPS) with exogenous progesterone. Recent data suggest that patients with low serum progesterone levels (<17 ng/mL) at positive pregnancy test after fresh embryo transfer have lower live birth rates and higher miscarriage rates despite standard vaginal LPS.

Aim:

The primary objective of the study is to compare live birth rates between:

  • a control group receiving standard luteal phase support with vaginal progesterone until pregnancy test and placebo subcutaneous injections until 8 weeks of gestation, and
  • an intervention group receiving prolonged luteal phase support with subcutaneous progesterone until 8 weeks of gestation.

Secondary objectives include comparison of clinical pregnancy rate, ongoing pregnancy rate, miscarriage rate, treatment-related adverse events, obstetrical and neonatal outcomes, gestational age at delivery, birth weight, and cost-effectiveness of the individualized prolonged luteal support strategy.

An ancillary biological sub-study conducted at Montpellier University Hospital will assess serum 17-hydroxyprogesterone and estradiol levels at inclusion.

Methods:

This study is a phase III, multicenter, randomized, double-blind, placebo-controlled trial.

Women aged 18-37 years with positive pregnancy test (Bêta chorionique gonadotropic hormone: β-hCG >100 IU/L) and serum progesterone <17 ng/mL after fresh embryo transfer will be randomized (1:1) to receive either:

  • subcutaneous progesterone (PROGIRON®) for 6 weeks, or
  • matching placebo for 6 weeks. To ensure adequate progesterone exposure during treatment initiation, vaginal progesterone (PROGESTAN®) will be continued for the first 4 days after randomization in both groups.

Participants will be followed until delivery. A total of 214 participants will be enrolled across multiple In vitro fertilization (IVF) centers.

研究の種類

介入

入学 (推定)

214

段階

  • フェーズ 3

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究連絡先のバックアップ

研究場所

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Patient aged 18 to 37 year-old;
  • Patients with a BMI below 34 kg/m2;
  • After a fresh embryo transfer following an ovarian hyperstimulation for an IVF with a luteal phase support based on micronized vaginal progesterone;
  • With a positive pregnancy test (β-hCG > 100 UI/L);
  • With a serum progesterone level below 17 ng/mL on the day of pregnancy test;
  • Patient able to self-administer subcutaneous progesterone injections, either alone or with the help of her partner.

Exclusion Criteria:

  • Patient undertaking an additional source of progesterone (oral or injected) or a treatment stimulating endogenous progesterone secretion (such as Gonadotropin-Releasing Hormone: GnRH agonist, or chorionique gonadotropic hormone: hCG injections);
  • Patients with intolerance or contraindication to subcutaneous progesterone administration;
  • Patients with a known 21-hydroxylase deficiency;
  • Patients with uterine pathology or untreated hydrosalpinx;
  • Patients with a history of recurrent miscarriages (3 or more);
  • Patient undergoing pre-implantation genetic testing;
  • Patient unavailable or unwilling to participate in future visits or is unable to comply with trial protocol;
  • Subjects unable to read or/and write French;
  • Failure to obtain the consent;
  • Subjects non-beneficiary of the French social security (Government medical aid (AME) excluded);
  • Subjects placed under legal protection, under guardianship or under curatorship;
  • Patient in an exclusion period determined by a previous study;
  • Subjects participating in another interventional research.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:ダブル

武器と介入

参加者グループ / アーム
介入・治療
プラセボコンパレーター:Control group

Discontinuation of luteal phase support with a subcutaneous placebo daily until 8 weeks of gestation (for 6 weeks).

Vaginal progesterone will be continued for 4 days after placebo initiation. Apart from these 4 days of transition treatment, the patient will not receive any additional treatment for luteal phase support (discontinuation of progesterone soft capsule administration according to the center's standard practice).

One injection of PLACEBO (identical in appearance to the PROGIRON® pre-filled syringe) per day will be administered until 8 weeks of gestation (Day 1 to Day 42).
他の名前:
  • PLACEBO, injectable solution
Vaginal progesterone treatment with PROGESTAN® (200 mg 3 times daily) will be continued for 4 days after initiation of the investigational medicinal product (Day 1 to Day 4), pending achievement of stable progesterone serum concentrations with injectable progesterone.
他の名前:
  • PROGESTAN 200 mg, vaginal soft capsule
実験的:Experimental group

Prolonged luteal phase support, switched to subcutaneous progesterone 25 mg daily until 8 weeks of gestation (for 6 weeks).

Vaginal progesterone will be continued for 4 days after subcutaneous progesterone initiation to ensure adequate serum levels while awaiting steady-state concentration of subcutaneous progesterone.

Apart from these 4 days of transition treatment, the patient will not receive any additional treatment for luteal phase support (discontinuation of progesterone soft capsule administration according to the center's standard practice).

Vaginal progesterone treatment with PROGESTAN® (200 mg 3 times daily) will be continued for 4 days after initiation of the investigational medicinal product (Day 1 to Day 4), pending achievement of stable progesterone serum concentrations with injectable progesterone.
他の名前:
  • PROGESTAN 200 mg, vaginal soft capsule
One injection of PROGIRON® (25 mg pre-filled syringe) per day will be administered until 8 weeks of gestation (Day 1 to Day 42).
他の名前:
  • PROGIRON 25 mg, injectable solution

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Live birth rate
時間枠:At postpartum follow-up (Visit 4: Month 9 ±1 month)
Defined as a birth of at least one live born baby, weighing 500 g or more or 20 weeks or more of gestation, with the birth of twins counted as one live birth.
At postpartum follow-up (Visit 4: Month 9 ±1 month)

二次結果の測定

結果測定
メジャーの説明
時間枠
Clinical pregnancy rate
時間枠:At first trimester follow-up (Visit 3: Week 12-14 of gestation)

Defined as ultrasound visualization of a gestational sac, excluding ectopic pregnancy.

Multiple gestational sacs in one participant will be counted as one clinical pregnancy

At first trimester follow-up (Visit 3: Week 12-14 of gestation)
Ongoing pregnancy rate
時間枠:At first trimester follow-up (Visit 3: Week 12-14 of gestation)
Defined as a viable intrauterine pregnancy at ≥12 weeks of gestation.
At first trimester follow-up (Visit 3: Week 12-14 of gestation)
Miscarriage rate
時間枠:From inclusion (Visit 1: positive pregnancy test or the following day) to 20 weeks of gestation
Defined as spontaneous pregnancy loss before 20 weeks of gestation, including early pregnancy loss (<12 weeks) and late pregnancy loss (12-20 weeks).
From inclusion (Visit 1: positive pregnancy test or the following day) to 20 weeks of gestation
Incidence of treatment-related adverse events
時間枠:From inclusion (Visit 1: positive pregnancy test or the following day) to follow-up (Visit 2: Week 6-7 after test +)
Incidence of adverse events reported during the intervention period.
From inclusion (Visit 1: positive pregnancy test or the following day) to follow-up (Visit 2: Week 6-7 after test +)
Incidence of obstetrical and neonatal complications
時間枠:At postpartum follow-up (Visit 4: Month 9 ±1 month)
Including premature rupture of membranes, preterm labor or delivery, fetal growth restriction, hypertensive disorders, pre-eclampsia, gestational diabetes, macrosomia, placental abnormalities, birth defects, stillbirth, perinatal death, and neonatal hospitalization.
At postpartum follow-up (Visit 4: Month 9 ±1 month)
Birth weight
時間枠:At postpartum follow-up (Visit 4: Month 9 ±1 month)
Weight of the newborn at delivery.
At postpartum follow-up (Visit 4: Month 9 ±1 month)
Gestational age at delivery
時間枠:At postpartum follow-up (Visit 4: Month 9 ±1 month)
Gestational age in weeks at the time of delivery.
At postpartum follow-up (Visit 4: Month 9 ±1 month)
Incremental cost-effectiveness ratio (ICER)
時間枠:From inclusion (Visit 1: Positive pregnancy test or the following day) to postpartum follow-up (Visit 4: Month 9 ±1 month)
Cost-effectiveness analysis comparing prolonged subcutaneous progesterone versus placebo, with effectiveness defined by live birth rate.
From inclusion (Visit 1: Positive pregnancy test or the following day) to postpartum follow-up (Visit 4: Month 9 ±1 month)

その他の成果指標

結果測定
メジャーの説明
時間枠
Serum 17-hydroxyprogesterone level
時間枠:At inclusion (Visit 1: positive pregnancy test or the following day)
Sub-study objectives, only for participants from Montpellier University Hospital the serum levels of 17-hydroxy-progesterone (ng/mL) will be investigated on the day of inclusion.
At inclusion (Visit 1: positive pregnancy test or the following day)
Serum estradiol level
時間枠:At inclusion (Visit 1: positive pregnancy test or the following day)
Sub-study objectives, only for participants from Montpellier University Hospital the serum levels of estradiol (pg/mL) will be investigated on the day of inclusion.
At inclusion (Visit 1: positive pregnancy test or the following day)

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • 主任研究者:Noémie RANISAVLJEVIC, MD, PhD、University Hospital, Montpellier
  • スタディチェア:Tal ANAHORY, MD、University Hospital, Montpellier

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

一般刊行物

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2027年3月1日

一次修了 (推定)

2029年9月1日

研究の完了 (推定)

2030年9月1日

試験登録日

最初に提出

2026年5月21日

QC基準を満たした最初の提出物

2026年5月21日

最初の投稿 (実際)

2026年5月29日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月2日

QC基準を満たした最後の更新が送信されました

2026年5月29日

最終確認日

2026年5月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • RECHMPL_25_0581
  • 2026-525452-28-00 (Ctis)

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いいえ

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