Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital

Effect of clindamycin and a live biotherapeutic on the reproductive outcomes of IVF patients with abnormal vaginal microbiota: protocol for a double-blind, placebo-controlled multicentre trial

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


  1. Educational needs in the COVID-19 pandemic: a Delphi study among doctors and nurses in Wuhan, China

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. In-Motion-App for remote General Movement Assessment: a multi-site observational study

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. National, clinical cohort study of late effects among survivors of acute lymphoblastic leukaemia: the ALL-STAR study protocol

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  1. Male origin microchimerism and ovarian cancer

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Pregnancy outcomes following oocyte donation

    Publikation: Bidrag til tidsskriftReviewpeer review

  3. Natarbejde og komplikationer i graviditeten

    Publikation: Bidrag til tidsskriftReviewpeer review

  • Thor Haahr
  • Nina La Cour Freiesleben
  • Anja Pinborg
  • Henriette Svarre Nielsen
  • Vibeke Hartvig
  • Anne-Lis Mikkelsen
  • Thomas Parks
  • Niels Uldbjerg
  • Jørgen Skov Jensen
  • Peter Humaidan
Vis graf over relationer

INTRODUCTION: Recent studies in in vitro fertilisation (IVF) patients have associated abnormal vaginal microbiota (AVM) with poor clinical pregnancy rates of 6%-9% per embryo transfer. The biological plausibility for this finding is hypothesised to be ascending infection to the endometrium which in turn hampers embryo implantation. New molecular based diagnosis may offer advantages compared to microscopical diagnosis of AVM which has huge inter-study variability ranging from 4 to 38%; however, the important question is whether screening and treatment of AVM would improve reproductive outcomes in IVF patients. Herein, we describe a protocol for an ongoing double-blind, placebo-controlled multicentre trial of IVF patients diagnosed with AVM and randomised in three parallel groups 1:1:1.

METHODS AND ANALYSIS: This is a drug intervention study where IVF patients will be screened for AVM, using a qPCR assay targeting Atopobium vaginae and Gardnerella vaginalis. If positive, patients will be randomised to one of the three study arms. The first arm consists of clindamycin 300 mg ×2 daily for 7 days followed by vaginal Lactobacillus crispatus CTV-05 until clinical pregnancy scan week 7-9. The second arm consists of clindamycin and placebo L. crispatus CTV-05, whereas patients in the third arm will be treated with placebo/placebo. We used a superiority design to estimate that active treatment in both arms will increase the primary outcome, clinical pregnancy rate per embryo transfer, from 20% to 40%. A potential difference between the two active arms was considered exploratory. With a power of 80% and an alpha at 5%, the sample size is estimated to be 333 patients randomised. A pre-planned interim analysis is scheduled at 167 patients randomised.

ETHICS AND DISSEMINATION: All patients have to give informed consent. Dissemination of results is ensured in clinical trial agreements whether they be positive or not. Ethics committee, Central Denmark Region approved this protocol.

TRIAL REGISTRATION NUMBER: ICH-GCP monitored trial, EudraCT 2016-002385-31; Pre-results.

TidsskriftBMJ Open
Udgave nummer10
Sider (fra-til)e035866
StatusUdgivet - 13 okt. 2020

Bibliografisk note

© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

ID: 61114001