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Dive into the research topics where Thomas D'Hooghe is active.

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Featured researches published by Thomas D'Hooghe.


Human Reproduction | 2011

The addition of GnRH antagonists in intrauterine insemination cycles with mild ovarian hyperstimulation does not increase live birth rates—a randomized, double-blinded, placebo-controlled trial

A.E.P. Cantineau; B.J. Cohlen; Helen Klip; Maas Jan Heineman; Annemieke Hoek; C.B. Lambalk; C.J.C.M. Hamilton; P.F. van Bommel; P.A. van Dop; P.F.M. van der Heijden; P. De Sutter; Thomas D'Hooghe; Petra A. P. Manger; Willem Ombelet; J.G. Santema

BACKGROUND This multicenter, double-blinded RCT investigated the efficacy of GnRH antagonists in cycles with mild ovarian hyperstimulation (MOH) followed by IUI in subfertile women. METHODS Couples diagnosed with unexplained, male factor subfertility or associated with the presence of minimal or mild endometriosis were randomized with a computer-generated list of numbers by a third party in a double-blinded setting to receive either a GnRH antagonists or a placebo in 12 institutional or academic hospitals. All women were treated with recombinant FSH in a low-dose step-up regimen starting on Day 2-4 of the cycle. A GnRH antagonist was added when one or more follicles of 14 mm diameter or more were visualized. When at least one follicle reached a size of ≥18 mm, ovulation was induced by hCG injection. A single IUI was performed 38-40 h later. Couples were offered a maximum of three consecutive cycles. The primary outcome of the trial was live births. Secondary outcomes were pregnancy rates, multiple pregnancy rates, miscarriages and ovarian hyperstimulation syndrome rate. RESULTS A total of 233 couples were included from January 2006 to February 2009, starting 572 treatment cycles. Live birth rates were not significantly different between the group treated with GnRH antagonist (8.4%; 23/275) and the placebo group (12%; 36/297) (P = 0.30). Three twin pregnancies occurred in the GnRH antagonist group and two twin pregnancies in the placebo group. CONCLUSIONS Adding a GnRH antagonist in cycles with MOH in an IUI program does not increase live birth rates. Dutch Trial Register no: NTR497.


Gynecologic and Obstetric Investigation | 2012

Dutch Translation of the ICMART-WHO Revised Glossary on ART Terminology. Nederlandse vertaling van de ICMART-WHO herziene woordenlijst over ART terminologie.

D. de Neubourg; N.T.L. van Duijnhoven; W.L.D.M. Nelen; Thomas D'Hooghe

Background: A standardized set of definitions was needed in the field of medically assisted reproduction (MAR) to standardize and harmonize international data acquisition and to monitor the availability, efficacy, and safety of assisted reproductive technology (ART) worldwide. In order to provide accurate national data, the use of a terminology list which was composed and negotiated by the International Committee for Monitoring Assisted Reproductive Technology (ICMART) is essential, and a translation into Dutch was crucial for its implementation in Belgium and the Netherlands. Method: The authors of the Dutch article translated the English publication that appeared simultaneously in Human Reproduction and Fertility and Sterility in 2009. A consensus text was obtained after evaluation by experts in the field of MAR both in the Netherlands and in Belgium and then by the board of the respective organizations of obstetrics and gynecology. It was then sent to the World Health Organization (WHO) for approval of publication. Result: A translation into Dutch of the ICMART terminology of 2009 was obtained after consensus was reached on clinical and laboratory procedures, outcome variables, and birth. Conclusion: The availability and use of standardized terminology and its translation into Dutch will add to a more standardized communication between professionals responsible for the practice of ART and for those responsible for national, regional, and international registries.


Human Reproduction | 2017

Transparent collaboration between industry and academia can serve unmet patient need and contribute to reproductive public health

Thomas D'Hooghe

Abstract The pharmaceutical and device industry has greatly contributed to diagnostic and therapeutic approaches in reproductive medicine in a very highly regulated environment, ensuring that development and manufacturing follow the highest standards. In spite of these achievements, collaboration between industry and physicians/academia is often presented in a negative context. However, today more than ever, partnership between industry and academia is needed to shorten the timeline between innovation and application, and to achieve faster access to better diagnostics, drugs and devices for the benefit of patients and society, based on complementary knowledge, skills and expertise. Such partnerships can include joined preclinical/clinical and post-marketing research and development, joint intellectual property, and joint revenue. In Europe, the transparency of this collaboration between pharmaceutical industry and medical doctors has been made possible by the Compliance and Disclosure Policy published by the European Federation of Pharmaceutical Industries and Associations (EFPIA), which represents the major pharmaceutical companies operating in Europe, and includes as members some but not all companies active in infertility and womens health. Under the EFPIA Disclosure Code of conduct, companies need to disclose transfers of value including amounts, activity type and the names of the recipient Health Care Professionals and Organizations. EFPIA member companies have also implemented very strict internal quality control processes and procedures in the design, statistical analysis, reporting, publication and communication of clinical research, according to Good Clinical Practice and other regulations, and are regularly inspected by competent authorities such as the US Food and Drug Administration (FDA) or European Medicines Agency (EMA) for all trials used in marketing authorization applications. The risk of scientific bias exists not only in the pharmaceutical industry but also in the academic world. When academics believe in a hypothesis, they may build their case by emphasizing the arguments supporting their case, and either refute, refuse, oppose or ignore arguments that challenge their assumptions. A possible solution to reduce this bias is international consensus on study design, data collection, statistical analysis and reporting of outcomes, especially in the area of personalized reproductive medicine, e.g. to demonstrate superiority or non-inferiority of personalized ovarian stimulation using biomarkers. Equally important is that declarations of interest are reported transparently and completely in scientific abstracts and publications, and that ghost authorship is replaced by proactive and clear co-authorship for experts from industry where such co-authorship is required based on the prevailing ICMJE criteria. In that context, however, reviewers should stop believing that publications by industry authors only, or by mixed groups of co-authors from industry and academia, are more prone to bias than papers from academic groups only. Instead, the scientific quality of the work should be the only relevant criterion for acceptance of papers or abstracts, regardless of the environment where the work was done. In the end, neutrality does not exist and different beliefs and biases exist within and between healthcare professionals and organizations and pharmaceutical industries. The challenge is to be transparent about this reality at all times, and to behave in an informed, balanced and ethical way as medical and scientific experts, taking into account compliance and legal regulations of both industry and academic employers, in the best interest of patients and society.


Reproductive Biomedicine Online | 2018

Predicting live birth for poor ovarian responders: the PROsPeR concept

Philippe Lehert; Wai Chin; Joan Schertz; Thomas D'Hooghe; Carlo Alviggi; Peter Humaidan

RESEARCH QUESTION A number of live-birth predictive models are available, and despite clinical interest these are rarely used owing to poor performance. In addition, no predictive models specifically for poor ovarian responders (POR) are available. The aim of the current project was to develop a clinically applicable tool for predicting live birth for PORs receiving recombinant human FSH [r-hFSH]. DESIGN A model was developed to predict live birth in PORs receiving r-hFSH, using data from the ESPART trial. Initially, two models were developed separately: one for patients with data from a previous assisted reproductive technology (ART) cycle and one for ART treatment-naïve patients. Subsequently, the simplified Poor Responder Outcome Prediction (PROsPeR) concept was derived. RESULTS PROsPeR considers three predictors and categorizes PORs into three scores, with predicted the live-birth rate divided by three with each worsening category. When adequately calibrated, a discrimination score up to area under the receiver operating characteristic (AUCROC) (95% CI) of 0.84 (0.79 to 0.88) was observed, which is superior to previously published models. Lower discriminations were observed when the PROsPeR model was used to evaluate the patients who received both r-hFSH and recombinant human LH in the ESPART study (AUCROC [95% CI] 0.66 [0.61 to 0.71]) and when all the patients included in the ESPART study were evaluated (AUCROC [95% CI] 0.68 [0.61 to 0.72]). CONCLUSIONS This model, specific to PORs receiving r-hFSH, constitutes the best compromise between precision and simplicity, and is suitable for routine practice.


Fertility and Sterility | 2007

Preimplantation genetic screening (PGS) for aneuploidy in embryos after in vitro fertilization (IVF) does not improve reproductive outcome in women over 35: A prospective controlled randomized study

Sophie Debrock; C Melotte; Joris Vermeesch; Carl Spiessens; Evelyne Vanneste; Thomas D'Hooghe


Human Reproduction | 2017

Efficacy and safety of follitropin alfa/lutropin alfa in ART: a randomized controlled trial in poor ovarian responders.

Peter Humaidan; W. Chin; D. Rogoff; Thomas D'Hooghe; S. Longobardi; J. Hubbard; Joan Schertz


Archive | 2012

Women's magazines provide little and low quality information on infertility issues

C Schillebeeckx; Eline Dancet; Ilse Delbaere; Diane De Neubourg; Uschi Van den Broeck; Thomas D'Hooghe


Facts, views & vision in obgyn | 2011

Progress in evidence based reproductive surgery.

J Bosteels; Steven Weyers; C Siristatidis; S Bhattacharya; Thomas D'Hooghe


Archive | 2009

Endometriosis and miscarriage: is there any association?

Atilla Bokor; Thomas D'Hooghe


Best Practice & Research in Clinical Obstetrics & Gynaecology | 2018

Endometriosis and infertility: Insights into the causal link and management strategies

Carla Tomassetti; Thomas D'Hooghe

Collaboration


Dive into the Thomas D'Hooghe's collaboration.

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Christel Meuleman

Katholieke Universiteit Leuven

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Sophie Debrock

Katholieke Universiteit Leuven

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Eline Dancet

The Catholic University of America

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Carl Spiessens

Katholieke Universiteit Leuven

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Carla Tomassetti

Katholieke Universiteit Leuven

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Diane De Neubourg

Katholieke Universiteit Leuven

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Karen Peeraer

Katholieke Universiteit Leuven

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Walter Sermeus

Katholieke Universiteit Leuven

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W.L.D.M. Nelen

Radboud University Nijmegen

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Paul Enzlin

The Catholic University of America

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