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Parenting and HIV: Strategies for reducing risk

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Presentation on theme: "Parenting and HIV: Strategies for reducing risk"— Presentation transcript:

1 Parenting and HIV: Strategies for reducing risk
Dr Carole Gilling-Smith Assisted Conception Unit, Chelsea & Westminster Hospital, London Agora Clinic, Brighton Grand Round Columbia University 30th October 2008

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3 Lecture Objectives HIV in 2008 - update Ethical concerns
Reducing transmission risk To uninfected partner and unborn child Impact of HIV on fertility & reproductive outcome Safety of staff and non-infected patients Laboratory adaptations The way forward

4 HIV – The Global Situation
> 42 million infected with HIV-1 worldwide 95% of new infections in subsaharan Africa majority of transmissions heterosexual limited resources and access to antiretrovirals Majority of those infected will die of AIDS Protected Intercourse encouraged

5 HIV : Is parenting an option?
In developed countries HIV defined as a chronic disease ARV treatment available Life expectancy 30 years + 80% of infected patients of reproductive age MCT < 1% Increased prevalence of subfertility in HIV patients Demand for reproductive care increasing

6 Need to understand the risks and
HIV- the stigma KEY QUESTIONS: Should HIV patients have children? Should they receive fertility care? Should they receive funding? Are they putting others at risk? Need to understand the risks and put aside prejudice

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9 Ethical concerns: welfare of the child (Frodsham et al
Ethical concerns: welfare of the child (Frodsham et al. Hum Reproduction 2005; 19:2420) Life expectancy of the infected parent co-infection with HCV Viral transmission risk to -ve partner and child Associated high risk behaviour drug abuse prostitution

10 UK Law: who should receive ART ?
HFEA Act 1990 Clause Welfare of the Child “a woman shall not be provided with treatment services (ART) unless account has been taken of the welfare of any child who may be born as a result of the treatment (including the need of that child for a father, and of any other child who may be affected by the birth).”

11 European Law: the right to have a family?
Article 12, European Court of Human Rights “ Men and women of marriageable age have the right to marry and found a family, according to the national laws governing the exercise of this right”

12 HFEA directive: Jan 2004 All patients undergoing licensed treatment should be screened for HIV, hep B & hep C IVF, ICSI, DI, OD immediate without quarantine period separate storage facilities for infected samples separate storage tank for infection/ infection combination

13 Legal & Ethical views in the USA
Changes in policy by: ACOG (2001 Committee opinion 255) ASRM (Fert Stert 2002 , 77;218-22) advocating policies of non-discrimination and equal access to fertility care Wide variation between states in treatments offered < 5% of clinics offering any form of treatment Sperm washing regarded as criminal action in some

14 Suggested criteria for treatment
CD4 count > 200 Undetectable / low viral load ‘stable’ disease Reproductive counselling identifies no issues F+ Effective ‘safe’ antiretroviral medication can be used during pregnancy

15 Reproductive Counselling
Assess stability of relationship and wish for a family Explore the risks Current health (VL, CD4, Liver disease, CA) Lifestyle Discuss treatment options Ensure there is emotional and practical support

16 Reproductive options for HIV +ve ♂ and HIV negative ♀
Unprotected timed intercourse (natural conception Donor insemination Adoption Sperm washing and insemination

17 HIV contamination of semen
seminal fluid NSC sperm L Kim et al, AIDS 1999, 13:

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20 SPERM WASHING PROTOCOL
1 semen density gradient semen semen semen NASBA check for HIV-1 RNA (detection limit > 50copies/ml) density gradient density gradient density gradient 2 dead sperm & non-sperm cells seminal plasma live sperm dead sperm & non-sperm cells seminal plasma live sperm seminal plasma seminal plasma seminal plasma dead sperm & non-sperm cells dead sperm & non-sperm cells swim-up 3 live sperm medium live sperm live sperm 2 4 4 medium medium NASBA check for HIV-1 RNA (detection limit > 50copies/ml) live sperm live sperm

21 Management of HIV+ve men
LOCAL HOSPITAL Fertility Screen Sexual Health Screen Initial referral info sent out Pre-conceptual Counselling 1st appointment ACU History/Results reviewed Semen analysis 2nd appointment ACU Sperm sample washed and frozen IVF or ICSI IUI

22 Pre-treatment work-up
♂ & ♀ : sexual health screen ♀: pelvic scan & endocrine profile (day 2 - 5) mid-luteal progesterone tubal assessment ♂ & ♀ : counselling ♂: IVF laboratory semen analysis

23 Reproductive Counselling: information & implications
understanding risks and benefits of each Rx SPERM WASHING investigations needed and why how is it done viral testing before insemination the female cycle and timed insemination viral testing after insemination risks to partner and future child

24 Consent / legal issues Method is risk reduction not risk elimination
Consent form Suggest freeze a washed -ve sample Better identify quality of sperm post wash Back up if failed wash on day of treatment Back up problems producing a sample

25 Ultrasound monitoring of the ovary: follicle tracking
18mm Day Day Day 13

26 Intrauterine Insemination (IUI)
uterus cervix prepared sperm

27 Egg collection

28 Insemination (3 hours)

29 ICSI (3 hours)

30 Eight Cell Embryo (72 hours)

31 Embryo transfer (ET)

32 Results : C & W SWP 238 couples
IUI IVF/ICSI 415 cycles LB 39 CPR / cycle: 13.3% LB rate/cycle:9.4% Cancellation rate: 1.8% IVF: 104 cycles LB 27 LB rate/cycle: 25% ICSI: 103 cycles LB 24 LB rate/cycle: 23.3% 90 healthy children born following 622 cycles (3 twins): 38% successful no seroconversions in either partner or child

33 Source of HIV infection (n=110)
Patients (% of total) Sexual 49 (44.5%) Haematological 18 (16.4%) IVDA 8 (7.3%) Unknown 35 (31.8%)

34 HIV and IUI outcome (Nicopoullos et al. Hum Reproduction 2004;19:2289)
HIV significantly impairs all sperm parameters Parameters correlate with CD4 count No correlation with use of ARV But IUI outcome (CPR) improved with: Low VL < 1000 copies/ml Use of ARV CD4 count has no impact If we summarise our results. Although sperm parameters, and most consistently TMC inseminated, have been shown to successfully predict the outcome of IUI in reports of HIV-ve men none had a significant impact following sperm-washing in our cohort of patients. Although there is a trend towards improved CPR with controlled ovarian stimulation, at our present sample size this does not achieve statistical significance. This supports our current practice of initially offering couples natural cycle IUI. However, in view of the trend towards impaired outcome with increasing age, it may also be reasonable to proceed with controlled ovarian stimulation and IUI immediately at advanced maternal ages. This option may also be sensible in view of the cost involved per cycle, minimal funding available for the fertility treatment of HIV-infected couples and the low incomes of many couples seeking treatment. Only markers of HIV-infection significantly affected IUI outcome in our cohort of cycles. CPR was significantly higher in those cycles from men with low VL (<1000copies/ml) and in those from men on anti-retroviral therapy.

35 Severe OATS & Azospermia
SSR, sperm washing and ICSI Nicopoullos et al, Fert Steril, 2004; 81: 670 (CBAVD) Bujan et al, Human Reproduction, 2007; 22: 2377 (OA) In many cases insufficient viable sperm for density gradient and HIV testing (> 5.106/ml) Can testicular sperm be used without washing and/or testing?

36 Centres for Reproductive Assistance Techniques in HIV in Europe
17 centres in 9 countries to pool data to assess: safety & efficacy epidemiology behavioural and psychosocial aspects draw up guidelines for counselling and treatment

37 Literature Review: Risks of sperm washing
Bujan et al, AIDS 2007: Multicentre Retrospective study 8 European centres 1036 serodiscordant couples 3396 treatment cycles 2840 IUIs 107 IVF 394 ICSI 49 FET NO SEROCONVERSIONS Probability of infection zero

38 North American Experience (Sauer et al, Fert Steril 2008)
Sauer et al (AJOG 2002, 186;627-33) Advocate ICSI as ‘safer’ than IUI or IVF 10 years experience : no seroconversion of mother or child 420 cycles in 181 couples Problems: Multiple pregnancy rate Invasive nature of treatment Higher cost

39 Swiss National AIDS Commission Swiss Medical Bulletin Jan 2008
‘HIV-positive individuals without additional sexually transmitted diseases (STD) and on effective antiretroviral (HAART) therapy are sexually non-infectious’ Caveat: No STD’s , VL fully suppressed for 6 months

40 Literature Review: Risks of unprotected vaginal intercourse
Quinn et al, 2000 Uganda: prospective study 453 HIV +ve ♂ + HIV -ve ♀ risk of transmission correlated with VL No transmission if VL < 1000 copies/ml Castilla et al, 2005: prospective study over 14 years 393 HIV +ve ♂ + HIV -ve ♀ ( ) No transmission if ♂ on HAART 8.6% risk of transmission if not

41 Literature Review: Risks of natural conception
Mandelbrot et al, 1997: Prospective study 92 HIV +ve ♂ + HIV -ve ♀ timed unprotected intercourse to conceive 4 seroconversions Barreiro et al, 2000: retrospective study of 62 discordant couples . HIV +ve ♂ had undetectable VL through HAART for 6 months No seroconversions Vernazza et al, 2007: prospective study 22 HIV +ve ♂ natural conception + PREP (License to Love)

42 Can HAART reduce risk to Zero ?
In men on HAART fully suppressed with -ve VL Mathematical models give risk of HIV transmission during intercourse < % Problems: HIV in serum and semen are not correlated Delay in achieving undetectable VL in semen STDs increase genital viral load (asymptomatic) Some patients get occasional spikes in VL

43 Seminal viral shedding on HAART (Gilling-Smith et al
Seminal viral shedding on HAART (Gilling-Smith et al. Hum Reproduction 2008;) Retrospective analysis of 551 consecutive cycles of sperm washing (1999 – 2007) at C & W Detectable HIV in ejaculated semen in men with undetectable VL through HAART (74% of cases) 3.7% (15 / 407) Median viral load 1100 copies/ml (range 360 – 18,000 cp/ml) Median CD4: 400 cells / mm3 (range cells / mm3) No correlation with type of HAART (2 cases on Tenofovir)

44 Seminal viral shedding on HAART (Gilling-Smith et al
Seminal viral shedding on HAART (Gilling-Smith et al. Hum Reproduction 2008) Detectable HIV-1 in men on HAART with VL< 50 post sperm washing 2 / 15 cases (2 / 407 or 0.005% of cycles) No consistent pattern between type of HAART and risk of viral shedding in semen In 2 men HAART included Tenofovir (used in PREP)

45 Seminal viral shedding on HAART (Gilling-Smith et al
Seminal viral shedding on HAART (Gilling-Smith et al. Hum Reproduction 2008) appreciable viral shedding in 3. 7% of men fully suppressed on HAART in the absence of STDs These men cannot therefore be regarded as sexually non-infectious Natural conception cannot be advised as a ‘safe’ option

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47 Reproductive options for HIV +ve ♂ and HIV negative ♀
Unprotected timed intercourse (natural conception) Transmission risk 0.3% % Donor insemination Adoption Sperm washing and insemination No reported transmissions to child or partner

48 HIV +ve women: Increased subfertility
No signif difference in endocrine profile / cycle Hx (D2-5 FSH, LH) Increased prevalence of tubal blockage 41% versus 14% Reduced ovarian reserve (Coll et al, 2007) The most dramatic results were seen in the tests of tubal patency. 41% of the patients seen had tubal factor infertility. 16 of the 21 patients with abnormal HSG/laparoscopy had bilateral tubal blockage with the other 5 having 1 patent tube (2 with irregular outlines to the patent tube). In comparison, Hull’s population study of the aetiology of subfertility in the BMJ of 1985 found only a 14% rate of tubal factor infertility. Our patients all have a full sexual health screen prior to review and no co existing sexually transmitted infections were found. Only 1 patient has a history of identified sexually transmitted infection. The patients who had unknown tubal status were either lost to follow up or their partners had very suboptimal semenalysis that would necessitate IVF/ICSI. Demand for IVF is rising

49 HIV +ve women & MCT risk equal or greater risks to offspring in:
trisomy 21 and other chromosome abnormalities women with cardiac disease or cystic fibrosis (20%) Insulin dependant diabetes (2%) multiple pregnancy following ART severe oligoasthenospermia & ICSI (3.5%) previous cancer known genetic disease ( %)

50 Fertility Rx for HIV +ve females
LOCAL HOSPITAL Fertility Screen Sexual Health Screen Initial referral info pack sent out Pre-conceptual Counseling 1st appointment ACU History/Results reviewed Semenanalysis IVF or ICSI IUI Obstetric Monitoring (HAART, no breast feeding)

51 Results : C & W FP IUI IVF/ICSI 38 cycles 2 EPL LB rate/cycle: 0%
IVF: 46 cycles LB 11 (5 EPL) LB rate/cycle: 24% ICSI: 24 cycles LB 7 LB rate/cycle: 29% 18 healthy children born following 108 cycles (4 twins) no seroconversions in either partner or child

52 Risks of IVF in +ve women (Frodsham et al. Hum Reproduction 2004)
9 HIV +ve women: IVF/ ICSI Detectable virus was found in follicular fluid Irrespective of serum viral load Detectable virus in some endometrial samples Emphasises need for: Separate laboratory/laboratory area Ongoing monitoring of safety Fractions are the number of follicles with HIV found in them/total number of follicles-no obvious pattern to aspirate v. flush1 v. flush 2

53 Reproductive outcome :HIV +ve women (Coll et al
Reproductive outcome :HIV +ve women (Coll et al. Hum Reproduction 2005;O-022) HIV +ve ♂ lower IVF CPR than HIV –ve women No difference in ovum donation CPR suggests effect of HIV on ovarian reserve

54 Lab Risk Assessment: Cross Contamination
Nocosomal (between patients) REPORTED Between samples in storage tanks REPORTED Between fluids / gametes handled in ACU NOT REPORTED BUT POSSIBLE

55 Lab Risk Assessment HIV & HCV detectable in
follicular fluid endometrial samples even when patient has –ve VL (Frodsham et al. Hum Reproduction 2004)

56 Laboratory Planning (Gilling-Smith et al. Hum Reproduction 2005)
Risk of cross contamination to uninfected gametes and embryos can occur: incubator micromanipulation cryopreservation Risk to laboratory staff separate laboratory separate incubators heat-sealed straws universal precautions

57 VEC / ET Room Low Risk Lab High Risk Lab

58 The high risk laboratory (Gilling-Smith et al. Human Reproduction 2005)
Zero risk does not exist Aim to minimise risk and human error Segregate low and high risk patients Separate laboratory or laboratory area Dedicated equipment heat sealed straws – ‘leakproof’ for HIV in liquid N2 ? Vapour phase storage

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60 ACU Infectious cases / year

61 Conclusions Increased demand for fertility care in HIV
Risk reduction treatments are available for HIV HIV +ve men and women have reduced fertility Sperm washing is preferable to timed intercourse Positive women must be able to access fertility treatment

62 Future Developments Prospective studies analysing safety of timed intercourse in men on HAART +/- PREP Continued multicentre analysis of outcome and follow-up data postive men and women Extension of methods into third world countries as part of a global public health strategy

63 Acknowledgements Gynaecology Immunology James Nicopoullos
Leila Frodsham Rebecca Wood Richard Smith Urology Jonathan Ramsay Embryology Paula Almeida Maria Vourlioutis Funding Elton John Foundation Serono Immunology Frances Gotch Jill Gilmour Alison Cox George Rozis Genitourinary Medicine Simon Barton Fiona Boag CREAThE Enrico Semprini Acknowledgements

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