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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Type of registration
Prospectively registered

Titles & IDs
Public title
A pilot study to assess low dose ovarian stimulation using local anaesthetic to collect oocytes for women having IVF treatment
Scientific title
A pilot study to assess the clinical pregnancy rate following low dose minimal ovarian stimulation with the oocyte retrieval under local anaesthetic for women undergoing IVF/ICSI treatment compared to case matched controls.
Secondary ID [1] 280682 0
Universal Trial Number (UTN)
Trial acronym
The MINIVA Study
Linked study record

Health condition
Health condition(s) or problem(s) studied:
infertility 286710 0
Condition category
Condition code
Reproductive Health and Childbirth 287006 287006 0 0
Fertility including in vitro fertilisation

Study type
Description of intervention(s) / exposure
participants will be on oral contraceptive pill prior to IVF cycle commencement.
Clomiphene citrate 100mgs will be administered orally day 2 to 5 of the menstrual cycle. On day 6 of the cycle a single sub cutaneous injection of Corifollitropin alfa150mg will be given and from day 7 of cycle daily sub cutaneous injections of Ganirelix 250 mg, until > 2 follicle measure 17mm when a sub cutaneous injection of Choriogonadotropin alfa 250mgm will be administered prior to oocyte collection 36 hours later. To collect oocytes under local anaesthetic, preoperative paracetamol 1g given rectally, preovarian block, 10ml lidocaine 1% injected under ultrasound guidance into vaginal wall either side of cervix. fentanyl 50 - 100mcg administered intravenously immediately prior to ovarian aspiration.
Intervention code [1] 285091 0
Treatment: Drugs
Comparator / control treatment
case matched controls will be women undergoing IVF using standard ovarian stimulation protocols at the same time as the study participants. Standard ovarian stimulation protocols will be based on women's age, BMI and previous response to ovarian stimullation,
Control group

Primary outcome [1] 287340 0
Clinical pregnancy rate as determined by viable fetal heart beat
Timepoint [1] 287340 0
8 weeks gestation
Secondary outcome [1] 297938 0
Fertilisation rates as assessed by embryologists confirming the presence of 2 pronuclei under microscopic review
Timepoint [1] 297938 0
day+ 1 post oocyte collection
Secondary outcome [2] 297939 0
Embryo quality on Day 3. Will be assessed by embryologists reviewing the embryo for number of cells, shape of cells, presence of multinucleation, presence of fragmentation under microscopic review.
Timepoint [2] 297939 0
day +3 post oocyte collection
Secondary outcome [3] 297940 0
Embryo quality on Day 4.Will be assessed by embryologists reviewing the embryo for number of cells, shape of cells, presence of multinucleation, presence of fragmentation under microscopic review.
Timepoint [3] 297940 0
day +4 post oocyte collection
Secondary outcome [4] 297941 0
Embryo utilisation rates (% of embryos that are frozen or transferred)
Timepoint [4] 297941 0
day of embryo transfer
Secondary outcome [5] 297942 0
Cumulative pregnancy rates (fresh & frozen) as dertermined by presence of gestational sac or fetal heartbeat seen on ultrasound 3 to 4 weeks after ovulation.
Timepoint [5] 297942 0
after all embryos from fresh cycle have been utilised
Secondary outcome [6] 297943 0
quantatative hCG level using serum hCG assay
Timepoint [6] 297943 0
day + 16 - 19 post oocyte collection
Secondary outcome [7] 297944 0
Number of cancelled cycles
Timepoint [7] 297944 0
day +16 - 19 post occyte collection
Secondary outcome [8] 297945 0
Number of frozen embryos
Timepoint [8] 297945 0
day of embryo transfer
Secondary outcome [9] 297946 0
Pain tolerance for local anesthetic using a visual analogue scale for pain recording
Timepoint [9] 297946 0
day of Oocyte collection and 24 hours post oocyte collection

Key inclusion criteria
Female Partner
*Normal ovarian reserve
*BMI <35 kg/m2
*Normal ovulatory cycles

Male Partner
Normal semen analysis as per WHO parameters
Minimum age
18 Years
Maximum age
38 Years
Can healthy volunteers participate?
Key exclusion criteria
Couples using donor gametes
Low ovarian reserve (AMH <14 pmol/l or AFC <5)
High ovarian reserve (AMH >30 pmol/l or AFC >20)
Women with a diagnosis of polycystic ovarian syndrome (PCOS)
Patients who need general anaesthetic for oocyte collection
Patients with history of drug sensitivity or allergic reaction to lignocaine
Abnormal position of ovaries
Preimplantation genetic diagnosis
Male partner who requires surgical sperm collection

Study design
Purpose of the study
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Who is / are masked / blinded?

Intervention assignment
Other design features
Phase 4
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Funding source category [1] 285443 0
Self funded/Unfunded
Name [1] 285443 0
Address [1] 285443 0
Country [1] 285443 0
Primary sponsor type
Adelaide Fertility Centre Pty Ltd
180 Fullarton Road
Dulwich SA 5065
Secondary sponsor category [1] 284294 0
Name [1] 284294 0
Address [1] 284294 0
Country [1] 284294 0

Ethics approval
Ethics application status
Ethics committee name [1] 287457 0
Women's and Children's Health Network HREC
Ethics committee address [1] 287457 0
Women's and Children's Hospital
72 Kermode St
North Adelaide SA 5006
Ethics committee country [1] 287457 0
Date submitted for ethics approval [1] 287457 0
Approval date [1] 287457 0
Ethics approval number [1] 287457 0

Brief summary
In the last 5-10 years there have been major advances in the technology and knowledge of assisited reproductive technology treatments. These include improved media and control of the environment for culturing human embryos. As a result there have been significant improvements in pregnancy rates and a significant increase in the transfer of a single embryo, to prevent the complications associated with multiple pregnancy. Historically, pregnancy rates have increased with greater numbers of eggs collected. Therefore superovulation procedures designed to enable the collection of 10-15 eggs per IVF cycle were a required part of the treatment strategy. However, with the recent advances of improved embryology techniques and pregnancy rates the requirement for a large number of eggs to be collected from young women has reduced. Modelling from our own laboratory has shown that pregnancy rates in young women plateau at 3-4 eggs. Therefore in this group of women production of more than four eggs in a stimulated cycle does not increase pregnancy rates but are associated with the risk of complications such as ovarian hyperstimulation syndrome (OHSS) (Reviewed in Verberg et al., 2009). Futhermore, there is increasing evidence in both animal models and also in the human that there are increased benefits of low dose stimulation. High doses of stimulation are associated with increased rates of poor quality oocytes and embryos (Valbuena et al., 2001) and have been reported to affect endometrial competence as well as reportedly increasing the incidence of aneuploidy (Baart et al. 2007). As a result of this new information, there has been the development of a more physiological style of ovarian stimulation in IVF for good prognosis patients, involving very low dose stimulation coupled with high quality embryology. These protocols are designed to produce a small number of eggs (aim 3-4 eggs) which can be fertilised, cultured and the best embryo transferred. As the literature presents such diverse findings we are initiating a pilot case-matched study to establish the efficacy of and patient feedback of tolerance to minimal stimulation regimes in an IVF cycle. Therefore, this pilot study is designed to assess the outcome of a low dose minimal stimulation treatment regime in a selected group of women undergoing IVF treatment.An interim analysis will be conducted after 10 cycles and if significant problems are identified, or average oocyte retrieval rates are below 2 eggs, the study will be abandoned at that point.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 34319 0
Dr Dr Michelle LAne
Address 34319 0
180 Fullarton Road
Dulwich South Australia 5065
Country 34319 0
Phone 34319 0
+61 8 83338111
Fax 34319 0
Email 34319 0
Contact person for public queries
Name 17566 0
Ms Helen Alvino
Address 17566 0
180 Fullarton Road
Dulwich SA 5065
Country 17566 0
Phone 17566 0
+61 (0) 8 83338111
Fax 17566 0
+61 (0) 8 83338811
Email 17566 0
Contact person for scientific queries
Name 8494 0
Dr Dr Deirdre Zander Fox
Address 8494 0
180 Fullarton Road
Dulwich SA 5065
Country 8494 0
Phone 8494 0
+61 (0) 8 83338111
Fax 8494 0
+61 (0) 8 83338811
Email 8494 0

No information has been provided regarding IPD availability
Summary results
No Results