Evidence mapPaperPMID 40660339Full record

ArticleTrials2025

Efficacy and safety of recombinant human granulocyte colony-stimulating factor in patients with unexplained recurrent pregnancy loss: a protocol for a multicenter, randomized, double-blind, controlled trial.

Fangxiang Mu, Zhuhua Cai, Lirong Du, Xianghui Zeng, Qi Zhou, Yaolong Chen, Fang Wang

Abstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
field-weighted citation impact
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

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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

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Fangxiang MuDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China.
Zhuhua CaiDepartment of Obstetrics and Gynecology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China.
Lirong DuHebei Key Laboratory of Reproductive Medicine, Hebei Reproductive Health Hospital (Research Institute), Shijiazhuang, 050071, China.
Xianghui ZengDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China.
Qi ZhouEvidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730030, China.
Yaolong ChenEvidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730030, China.
Fang WangDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China. ery_fwang@lzu.edu.cn.

Funding

Medical Innovation and Development Project of Lanzhou University lzuyxcx-2022-137Science Foundation of Lanzhou University Second Hospital YJS-BD-19
6 · The paper itself

Abstract

backgroundUnexplained recurrent pregnancy loss (uRPL), defined as the loss of two or more pregnancies without an identified cause, affects approximately 1-2% of women trying to conceive. Emerging evidence suggests that an imbalance in maternal-fetal immunological tolerance may play a key role in its pathogenesis. Granulocyte colony-stimulating factor (G-CSF), a glycosylated polypeptide chain cell growth factor, has shown promise in improving pregnancy outcomes in uRPL, although findings from previous clinical trials are inconsistent. High-quality, adequately powered studies are urgently needed to determine its clinical utility. This study aims to evaluate the efficacy and safety of G-CSF in Chinese women with uRPL, providing a more theoretical basis for clinical practice.

methodsA randomized, double-blind, placebo-controlled, multicenter clinical trial will enroll 528 eligible participants, assigned to test group (n = 264, G-CSF 150 μg, subcutaneously every other day) and control group (n = 264, placebo), starting after confirmation of early pregnancy and ending at 10 weeks + 0 days of gestation. All participants will also receive dydrogesterone and aspirin as supportive care. The primary endpoint is fetal survival to 24 weeks, and secondary endpoints are early pregnancy loss, clinically confirmed pregnancy, ongoing pregnancy, fetal survival to 28 weeks, ectopic pregnancy, preterm birth, stillbirth, and pregnancy complications (preeclampsia, gestational diabetes mellitus, HELLP syndrome, placental abruption). The trial will also explore subgroup effects based on research centers (4 centers), age, number of pregnancy losses, and body mass index. DISCUSSION: This trial aims to provide high-quality evidence on the efficacy and safety of G-CSF in the treatment of uRPL, particularly in the Chinese population where existing data are limited. The findings may support evidence-based recommendations and inform treatment decisions in a population where therapeutic options remain limited and controversial.

trial registrationChiCTR2300077436. Prospectively registered on 2023-11-08.

Indexed as

Abortion, HabitualGranulocyte Colony-Stimulating FactorAdultChinaDouble-Blind MethodFemaleGestational AgeHumansMulticenter Studies as TopicPregnancyRandomized Controlled Trials as TopicRecombinant ProteinsTime FactorsTreatment OutcomeGranulocyte Colony-Stimulating FactorRecombinant ProteinsGranulocyte colony-stimulating factorPregnancy outcomeRandomized controlled trialUnexplained recurrent pregnancy loss

Identifiers

PMID40660339
PMCPMC12257775

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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.