Evidence map›Paper›PMID 35317821›Full record

Trial reportReproductive biology and endocrinology : RB&E2022

The effect of flexible low-dose GnRH antagonist on pregnancy outcome in the fresh embryo transfer cycle of IVF-ET: a randomized controlled trial.

Liping Feng, Ruiqi Fan, Aifang Jiang, Junyi Jiang, Qian Wang, Yujun Sun, Pengyun Qiao, Chune Ren, Tingting Yang

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Reproductive biology and endocrinology : RB&E, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Liping Feng *Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.ORCID http://orcid.org/0000-0003-3679-9216
Ruiqi Fan *Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.
Aifang JiangDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.
Junyi JiangDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.
Qian WangDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.
Yujun SunDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China.
Pengyun QiaoDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China. qiao-pengyun@163.com.
Chune RenDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China. wyfybaby@126.com.
Tingting YangDepartment of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Shandong Province, People's Republic of China. Y402115432@163.com.ORCID http://orcid.org/0000-0001-9927-3057
Weifang Medical University · CN

Funding

Natural Science Foundation of Shandong Province ZR2021MH235
6 · The paper itself

Abstract

objectiveTo explore the practicality and effectiveness of a flexible low-dose protocol in the fresh embryo transfer cycle: reducing the total amount of antagonist by increasing the interval between administrations of Cetrotide.

methodsA total of 211 patients with normal ovarian reserve who accepted GnRH-ant protocol for IVF-ET were selected, and they were randomized to the flexible low-dose antagonist group (test group, n = 101) or the conventional dose antagonist group (control group, n = 110). The initial dose of Cetrotide in the test group was 0.25 mg every other day, and then the dose was adjusted to 0.25 mg every day based on the subsequent luteinizing hormone (LH) levels. The dosage of Cetrotide in the control group was 0.25 mg per day. The primary outcome was the clinical pregnancy rate. Secondary outcomes included the incidence of premature LH rise, total dosage of Cetrotide, number of oocytes retrieved, number of fertilized oocytes, number of high-quality embryos, biochemical pregnancy rate and ongoing pregnancy rate.

resultsThere was no significant difference in the general condition of the two groups. There was no significant difference in the clinical pregnancy rate (51.49% vs. 48.18%, p = 0.632) or the incidence of premature LH rise (18.81% vs. 15.45%, p = 0.584) between the two groups. However, the amount of Cetrotide used in the test group was significantly lower than that in the conventional dose antagonist group (1.13 ± 0.41 vs. 1.61 ± 0.59 mg, p < 0.001).

conclusionThe flexible low-dose antagonist protocol and the conventional dose antagonist protocol were equally effective in people with a normal ovarian reserve in the fresh embryo transfer cycle of IVF-ET.

Indexed as

Ovulation InductionPregnancy OutcomeEmbryo TransferFemaleFertilization in VitroGonadotropin-Releasing HormoneHumansPregnancyGonadotropin-Releasing HormoneCetrotideClinical pregnancy rateFlexible low-dose GnRH antagonistIVF-ETPremature LH rise

Identifiers

PMID35317821
PMCPMC8939190
OpenAlexW4220927977

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.