Evidence map›Paper›PMID 33058045›Full record

SynthesisAdvances in therapy2020

The Frequency of Ovarian Hyperstimulation Syndrome and Thromboembolism with Originator Recombinant Human Follitropin Alfa (GONAL-f) for Medically Assisted Reproduction: A Systematic Review.

Erica Velthuis, Julie Hubbard, Salvatore Longobardi, Thomas D'Hooghe

Erratum issuedOpen access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Advances in therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 4 countries.

Erica VelthuisGlobal Patient Safety, Merck KGaA, Darmstadt, Germany. erica.velthuis@merckgroup.com.
Julie HubbardGlobal Development and Medical, EMD Serono Research and Development Institute, Billerica, MA, USA.
Salvatore LongobardiGlobal Clinical Development, Merck Serono SpA, Rome, Italy.
Thomas D'HoogheGlobal Medical Affairs Fertility, R&D Biopharma, Merck KGaA, Darmstadt, Germany.
Merck (Germany) · DEMerck Serono (Italy) · ITResearch & Development Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecombinant human follitropin alfa (r-hFSH) is used for ovarian stimulation as part of medically assisted reproduction. There is a risk for ovarian hyperstimulation syndrome (OHSS) with r-hFSH treatment, and an increased risk for thromboembolic events in the presence of pregnancy with OHSS.

objectivesTo report the frequency of OHSS and thromboembolism with originator follitropin alfa (GONAL-f) based on the Global Safety Database of Merck KGaA, Darmstadt, Germany and a systematic review of published data. DATA SOURCES: Reports of OHSS and thromboembolism were obtained from the Global Safety Database of Merck KGaA, Darmstadt, Germany from 20 October 1995 to 19 October 2018. The systematic review was based on MEDLINE and Embase searches from inception to 19 October 2018. STUDY ELIGIBILITY CRITERIA: Patients receiving GONAL-f for ovulation induction or ART, with a starting dose within the range included in the prescribing information and providing information on the occurrence of OHSS and/or thromboembolism. STUDY APPRAISAL AND SYNTHESIS MATCHES: In the Global Safety Database of Merck KGaA, Darmstadt, Germany there were an estimated 16,525,975 treatment cycles since 20 October 1995; 1110 reported cases of OHSS and 80 reported cases of thromboembolic events (reporting rates 6.7 and 0.48 per 100,000 treatment cycles, respectively). The systematic review identified 45 studies (5186 patients exposed to GONAL-f; 5240 treatment cycles). There were 272 reports of OHSS (5190 [5.19%] per 100,000 treatment cycles), including 10 cases of severe OHSS (191 [0.19%] per 100,000 treatment cycles). LIMITATIONS: There may be the potential for under-reporting of safety outcomes in the literature, and under-reporting is a well-known phenomenon in spontaneous reporting databases. CONCLUSION AND IMPLICATIONS OF KEY

findingsOur analyses demonstrate low rates of OHSS and thromboembolism with GONAL-f.

Indexed as

FemaleFertilization in VitroFollicle Stimulating Hormone, HumanHumansOvarian Hyperstimulation SyndromeOvulation InductionRecombinant ProteinsReproductive Techniques, AssistedThromboembolismFollicle Stimulating Hormone, Humanfollitropin alfaRecombinant ProteinsGONAL-fOvarian hyperstimulation syndromer-hFSHSafetyThromboembolismWomen’s health

Identifiers

PMID33058045
PMCPMC7595967
OpenAlexW3092845841

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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 OpenQuestion graph.