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Recombinant LH Prior to Ovarian Stimulation in Poor Ovarian Responders (PRE-LH)

A Phase III Multicentre, Randomized, Unblinded Clinical Trial to Test the Effect of Treatment with Recombinant LH Prior to Controlled Ovarian Stimulation in Poor Ovarian Responder Women with an Advanced Maternal Age

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03741699
Acronym
PRE-LH
Enrollment
88
Registered
2018-11-15
Start date
2019-02-18
Completion date
2024-05-11
Last updated
2024-10-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility, Female

Keywords

Poor ovarian response, Recombinant LH, Advanced maternal age, Oocyte retrieved

Brief summary

Controlled ovarian stimulation (COS) is one of the first stages of assisted reproductive treatment. The goal is to mimic the ovarian cycle while stimulating the ovaries to overproduce eggs capable of being fertilized, thus maximizing the chances of reproductive success. The stimulation phase involves the use of different hormonal medications but requires tests to check the development of follicles, and hormonal adjustment to get the optimal ovarian response to stimulation. However, between 9 to 24% of patients fail to respond adequately to standard stimulation protocols, resulting in Poor Ovarian Response (POR). In addition to the low oocyte production, POR results in a restricted number of good quality embryos with appropriate implantation potential, suggesting a compromised oocyte quality. POR is one of the most challenging problems in reproductive medicine. Poor responders are difficult to treat since their response to stimulation tend to be deficient even when using different drugs or protocols. In recent years, different therapeutic alternatives have been proposed for these patients. However, to date, the optimal stimulation protocol has not yet been described and oocyte donation is often offered as their only option to achieve pregnancy. Recently, evidence has emerged that supplementation with a specific hormone, luteinizing hormone (LH), during or prior to COS could lead to improved reproductive outcomes in poor responders by increasing the number of oocytes retrieved and improving their quality. The present study aims to evaluate the effect of the treatment with LH prior to COS on the ovarian response in patients with POR and advanced maternal age, the worst prognosis but more frequent group of poor responders attending fertility clinics. We will assess whether LH treatment prior to COS increases the number and quality of oocytes retrieved in those patients and, finally, analyse the impact in their chances of getting pregnant and having a baby.

Interventions

DRUGPre-treatment with rLH (Luveris 75 IU),

Treatment with 150 IU/day rLH (Luveris 75 IU), administered subcutaneously for 4 consecutive days prior to COS (Controlled ovarian stimulation)

Sponsors

Merck, S.L., Spain
CollaboratorINDUSTRY
Syntax for Science, S.L
CollaboratorINDUSTRY
Fundación IVI
CollaboratorOTHER
Instituto Valenciano de Infertilidad, IVI Alicante
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

prospective, interventional, randomised, unblinded and controlled study with 2 parallel groups

Eligibility

Sex/Gender
FEMALE
Age
35 Years to 43 Years
Healthy volunteers
No

Inclusion criteria

1. -Patients with POR according to specific criteria that are in line with the criteria defined by the ESHRE (Bologna Criteria), according to which a patient is classified as a poor ovarian responder when she meets two of the three of the following criteria: I.- Previous episode of POR (≤3 oocytes) with conventional stimulation protocol II.- Abnormal ovarian reserve test with an antral follicle count (AFC) \<5-7 and/or anti-mullerian hormone values (AMH) \<0.5-1.1 ng/mL. III.- Women ≥40 years old and/or who have any other risk factor for POR. In addition, two episodes of POR after maximal stimulation are sufficient to define a patient as poor responder in the absence of advanced maternal age or abnormal ovarian reserve test. 2. \- Women ≥35 to ≤43 years for COS and assisted reproduction techniques (ART). 3. \- Couple or single woman, accepting preimplantation genetic diagnosis (PGS) after blastocyst biopsy and delayed transfer for selection of euploid embryos. 4. \- Body Mass Index (BMI) between18 and 30 kg/m 2 , inclusive. 5. \- Ejaculatory sperm with concentration ≥ 5 mill spermatozoa/mL and ≥ 5 mill total spermatozoa progressive motility. Bank and cryopreserved semen allowed. 6. \- Informed consent completed, signed and dated.

Exclusion criteria

1. \- Cases of recurrent spontaneous miscarriage (≥2 clinical miscarriages) or implantation failure (after transfer of 6 good D3 embryos or 4 good blastocysts) will be excluded. 2. \- Use of testicular or epididymal spermatozoa as well as ejaculate with concentration \< 5 mill spermatozoa/mL and \< 5 mill total spermatozoa progressive motility. 3. \- Primary ovarian failure, PCOS (in accordance with the Rotterdam criteria) or ovary/s inaccessible for oocyte retrieval. 4. \- Anatomical uterine abnormalities and any endometrium or myometrium pathology (adenomyosis, polyps, myoma, etc.) that may interfere with implantation or pregnancy. Patients with previous polypectomy, myomectomy or surgery for septate/subseptate/arcuatus uterus should not be excluded. 5. \- Presence of unilateral or bilateral hydrosalpinx that has not been surgically removed or ligated. 6. \- Presence of level III-IV endometriosis. 7. \- History of tumours in the hypothalamus or pituitary gland, or ovarian, uterine or breast cancer. 8. \- Abnormal bleeding of undetermined origin. 9. \- Known infection with human immunodeficiency virus, active hepatitis B or C virus in the woman or her partner. 10. \- Known allergy or hypersensitivity to the drugs administered during the trial. 11. \- Concurrent significant medical pathologies that would endanger the patient's safety (uncontrolled thyroid or adrenal dysfunction, severe hepatic or renal impairment, etc.) or interfere with the test evaluations or the clinical outcomes (i.e. confirmed thrombophilia). 12. \- Use of concomitant medication or any other circumstances that, in the opinion of the investigator, interferes with the development of the trial or does not ensure the safety and efficacy of the data. 13. \- Simultaneous participation in another clinical trial or previous participation in this study. 14. \- Participation in another clinical study two months before inclusion in the present study that could affect its objectives.

Design outcomes

Primary

MeasureTime frameDescription
number of oocytes retrieved37 daysnumber of oocytes retrieved

Secondary

MeasureTime frame
P 4 and E 2 levels on the previous day or the day of GnRH agonist injectionfrom day 8-12 to day 33-37
Duration of stimulation and total gonadotropin dose during COSfrom day 8-12 to day 33-37
Serum hormonal profile before and after IMP treatment and after stimulationfrom day 8-12 to day 33-37
Cycle cancellation rates (stimulation cycle cancelled prior to oocyte retrieval if there is no follicular response after 10 days of stimulation or due to premature ovulation at any time before oocyte retrieval)from day 8-12 to day 33-37
Number of mature or metaphase II (MII) oocytes/number of oocytes retrieved per punctureDay 37
Number of retrieved oocytes/number of expected oocytes (follicles >15 mm on the day of GnRH agonist injection)Day 37
Fertilization rateDay 38
Hormonal profile in follicular fluid on the day of the punctureDay 37
Gene expression profile in granulosa cellsDay 37
Apoptosis rate in granulosa cellsDay 37
Morphological variables of embryonic qualityDay 38 to 43
Number of follicles >17 mm on the previous day or the day of GnRH agonist injection (Decapeptyl)from day 8-12 to day 33-37
Number of optimal embryos (type A or B, according to ASEBIR classification)Day 43
Number of euploid and aneuploid embryosDay 50
Stimulation cycle yield (number of frozen embryos).Day 43
Number of cycles with embryo transferred/ number of stimulation cycle startedDay 43
Pregnancy rates (per stimulation cycle and embryo transfer)Throughout the study, estimate 1 year
Implantation ratesThroughout the study, estimate 1 year
Ongoing pregnancy rates (per stimulation cycle and embryo transfer)Throughout the study, estimate 1 year
Clinical and biochemical miscarriages rates (per stimulation cycle and embryo transfer)Throughout the study, estimate 1 year
Ectopic pregnancy rates (per stimulation cycle and embryo transfer)Throughout the study, estimate 1 year
Live birth ratesThroughout the study, estimate 18 +/-3 months
Assessment and recording of adverse eventsThroughout the study, estimate 18 +/-3 months
Blastocyst rateDay 43

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026