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Efficacy Study Comparing the Effect of Clomiphencitrate to an Antagonist Protocol (CANTAPOR)

This study is currently recruiting participants.
Verified September 2017 by University Hospital, Basel, Switzerland
Sponsor:
ClinicalTrials.gov Identifier:
NCT01577472
First Posted: April 13, 2012
Last Update Posted: September 29, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
Information provided by (Responsible Party):
University Hospital, Basel, Switzerland
  Purpose
The aim of this study is to assess the oocyte yield of infertile women with suspected or known poor ovarian reserve (POR) undergoing a GnRH antagonist protocol for IVF with Merional® starting either with a low (150 IU) or a high dose (450 IU) and adding 100mg of CC (Serophene®) in the early follicular phase of the stimulation (day 3 to 7). To date no RCT has been conducted to compare the reproductive outcome of patients with POR as defined by the ESHRE Bologna criteria after controlled ovarian hyperstimulation with HMG in an GnRH antagonist protocol using low doses versus high doses of HMG and adding CC versus placebo. We hypothesize that adding 100 mg of CC on day 3-7 to a HMG antagonist protocol will lead to an additional increment of endogenous GT thus increasing the oocytes yield after controlled ovarian stimulation due to higher endogenous gonadotropin secretion.

Condition Intervention Phase
Female Infertility Ovarian Insufficiency Drug: High Dose Clomiphencitrat Drug: Low Dose Clomiphencitrat Drug: High Dose Placebo Drug: Low dose Placebo Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Prospective Randomized Phase IV Study Comparing the Effect of Adding Clomiphencitrate Versus Placebo to a High Dose Versus a Minimal Dose GnRH Antagonist Protocol on the Number of Oocytes Collected From Women That Are Poor Responders

Resource links provided by NLM:


Further study details as provided by University Hospital, Basel, Switzerland:

Primary Outcome Measures:
  • number of collected oocytes [ Time Frame: 1 year ]

Secondary Outcome Measures:
  • Implantation rate [ Time Frame: 1 year ]

Estimated Enrollment: 120
Study Start Date: August 2013
Estimated Study Completion Date: December 2017
Estimated Primary Completion Date: December 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: High Dose Clomiphencitrat
450 IU Merional® plus 100mg Serophene®
Drug: High Dose Clomiphencitrat
100mg of clomiphencitrate(Serophene®) are added to a high dose of HMG (450 IU of Merional®) in the early follicular phase of the stimulation (day 3 to 7).
Active Comparator: Low Dose Clomiphencitrat
150 IU Merional® plus 100mg Serophene®
Drug: Low Dose Clomiphencitrat
100mg of clomiphencitrate(Serophene®) are added to a low dose of HMG (150 IU of Merional®) in the early follicular phase of the stimulation (day 3 to 7).
Placebo Comparator: High Dose Placebo
450 IU Merional® plus Placebo
Drug: High Dose Placebo
Placebo is added to a high dose of HMG (450 IU of Merional®) in the early follicular phase of the stimulation (day 3 to 7).
Placebo Comparator: Low Dose Placebo
150 IU Merional® plus Placebo
Drug: Low dose Placebo
Placebo is added to a low dose of HMG (150 IU of Merional®) in the early follicular phase of the stimulation (day 3 to 7).

  Eligibility

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Ages Eligible for Study:   18 Years to 43 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Age: >18 years < 43 years
  • BMI: ≥ 18 ≤ 32 kg/m2
  • Poor responder as defined by ESHRE working group

Exclusion Criteria:

  • Age < 18 und > 43 years
  • Pregnancy
  • Breast feeding
  • Uterine conditions interfering with endometrial proliferation and embryo implantation (submucous fibroids or polyps)
  • Women diagnosed with PCOS according to the Rotterdam criteria
  • Hyperprolactinaemia - untreated
  • Both ovaries not accessible transvaginally for oocyte pick up
  • Ovarian cysts of unclear dignity
  • Evidence of hydrosalpinx on ultrasound
  • Clinically significant severe systemic disease that are incompatible with pregnancy
  • Known or suspected hypersensitivity to the active substances (gonadotrophins, ganirelix, progesterone, clomiphencitrate)
  • Untreated thyroid or adrenal disorders
  • Bleeding disorders
  • Cancer
  • Severe renal or hepatic dysfunction
  • Necessity to take medication that could influence ovarian stimulation
  • History of OHSS in prior IVF cycle
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01577472


Contacts
Contact: Rebecca E Moffat, MD +41 61 328 7980 rebecca.moffat@usb.ch

Locations
Switzerland
University Hospital Basel Recruiting
Basel, Switzerland, 4031
Contact: Rebecca E Moffat, MD    +41 61 328 79 80    rebecca.moffat@usb.ch   
Sponsors and Collaborators
University Hospital, Basel, Switzerland
Investigators
Principal Investigator: Rebecca E Moffat, MD University Hospital Basel, Women's Clinic
  More Information

Responsible Party: University Hospital, Basel, Switzerland
ClinicalTrials.gov Identifier: NCT01577472     History of Changes
Other Study ID Numbers: CANTAPOR_2012
First Submitted: April 5, 2012
First Posted: April 13, 2012
Last Update Posted: September 29, 2017
Last Verified: September 2017

Keywords provided by University Hospital, Basel, Switzerland:
female infertility
poor ovarian response
controlled ovarian hyperstimulation
IVF
Antagonist protocol

Additional relevant MeSH terms:
Infertility, Female
Infertility
Genital Diseases, Male
Genital Diseases, Female
Clomiphene
Enclomiphene
Zuclomiphene
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Fertility Agents, Female
Fertility Agents
Reproductive Control Agents
Selective Estrogen Receptor Modulators
Estrogen Receptor Modulators