King's College London

Research portal

Yakoub Khalaf

  1. Elective freezing of embryos versus fresh embryo transfer in IVF: a multicentre randomized controlled trial in the UK (E-Freeze)

    Maheshwari, A., Bell, J. L., Bhide, P., Brison, D., Child, T., Chong, H. Y., Cheong, Y., Cole, C., Coomarasamy, A., Cutting, R., Hardy, P., Hamoda, H., Juszczak, E., Khalaf, Y., Kurinczuk, J. J., Lavery, S., Linsell, L., Macklon, N., Mathur, R., Pundir, J. & 6 others, Raine-Fenning, N., Rajkohwa, M., Scotland, G., Stanbury, K., Troup, S. & Bhattacharya, S., 1 Mar 2022, In: Human reproduction (Oxford, England). 37, 3, p. 476-487 12 p.

    Research output: Contribution to journalArticlepeer-review

  2. Developing a core outcome set for future infertility research: an international consensus development study†  ‡

    Core Outcome Measure for Infertility Trials (COMMIT) initiative, 1 Dec 2020, In: Human reproduction (Oxford, England). 35, 12, p. 2725-2734 10 p.

    Research output: Contribution to journalArticlepeer-review

  3. Standardizing definitions and reporting guidelines for the infertility core outcome set: an international consensus development study†  ‡

    Core Outcome Measure for Infertility Trials (COMMIT) initiative, 1 Dec 2020, In: Human reproduction (Oxford, England). 35, 12, p. 2735-2745 11 p.

    Research output: Contribution to journalArticlepeer-review

  4. Funding and public reporting strategies for reducing multiple pregnancy from fertility treatments

    Chambers, G. M., Keller, E., Choi, S., Khalaf, Y., Crawford, S., Botha, W. & Ledger, W., Oct 2020, In: Fertility and Sterility. 114, 4, p. 715-721 7 p.

    Research output: Contribution to journalReview articlepeer-review

  5. The Prevalence of Thyroid Dysfunction and Autoimmunity in Women With History of Miscarriage or Subfertility

    Dhillon-Smith, R. K., Tobias, A., Smith, P. P., Middleton, L. J., Sunner, K. K., Baker, K., Farrell-Carver, S., Bender-Atik, R., Agrawal, R., Bhatia, K., Chu, J. J., Edi-Osagie, E., Ewies, A., Ghobara, T., Gupta, P., Jurkovic, D., Khalaf, Y., Mulbagal, K., Nunes, N., Overton, C. & 14 others, Quenby, S., Rai, R., Raine-Fenning, N., Robinson, L., Ross, J., Sizer, A., Small, R., Underwood, M., Kilby, M. D., Daniels, J., Thangaratinam, S., Chan, S., Boelaert, K. & Coomarasamy, A., 1 Aug 2020, In: The Journal of clinical endocrinology and metabolism. 105, 8

    Research output: Contribution to journalArticlepeer-review

  6. Micronized vaginal progesterone to prevent miscarriage: a critical evaluation of randomized evidence

    Coomarasamy, A., Devall, A. J., Brosens, J. J., Quenby, S., Stephenson, M. D., Sierra, S., Christiansen, O. B., Small, R., Brewin, J., Roberts, T. E., Dhillon-Smith, R., Harb, H., Noordali, H., Papadopoulou, A., Eapen, A., Prior, M., Di Renzo, G. C., Hinshaw, K., Mol, B. W., Lumsden, M. A. & 10 others, Khalaf, Y., Shennan, A., Goddijn, M., van Wely, M., Al-Memar, M., Bennett, P., Bourne, T., Rai, R., Regan, L. & Gallos, I. D., Aug 2020, In: American Journal of Obstetrics and Gynecology. 223, 2, p. 167-176 10 p.

    Research output: Contribution to journalReview articlepeer-review

  7. Top 10 priorities for future infertility research: an international consensus development study

    Priority Setting Partnership for Infertility, 2020, (Accepted/In press) In: Fertility and Sterility.

    Research output: Contribution to journalArticlepeer-review

  8. Definition and validation of a custom protocol to detect miRNAs in the spent media after blastocyst culture: searching for biomarkers of implantation

    Cimadomo, D., Rienzi, L., Giancani, A., Alviggi, E., Dusi, L., Canipari, R., Noli, L., Ilic, D., Khalaf, Y., Ubaldi, F. M. & Capalbo, A., 29 Sep 2019, In: Human reproduction (Oxford, England). 34, 9, p. 1746-1761 16 p.

    Research output: Contribution to journalArticlepeer-review

  9. What can stem cell technology offer to IVF patients?

    Ilic, D., Telfer, E. E., Ogilvie, C., Kolundzic, N. & Khalaf, Y., 1 Jun 2019, In: BJOG: An International Journal of Obstetrics and Gynaecology. 126, 7, p. 824-827 4 p.

    Research output: Contribution to journalArticlepeer-review

  10. Comparison of human isogeneic Wharton’s jelly MSCs and iPSC-derived MSCs reveals differentiation-dependent metabolic responses to IFNG stimulation

    Devito, L., Klontzas, M. E., Cvoro, A., Galleu, A., Simon, M., Hobbs, C., Dazzi, F., Mantalaris, A., Khalaf, Y. & Ilic, D., 20 Mar 2019, In: Cell Death and Disease. 10, 4, p. 277 277.

    Research output: Contribution to journalArticlepeer-review

  11. Physiological, hyaluronan-selected intracytoplasmic sperm injection for infertility treatment (HABSelect): a parallel, two-group, randomised trial

    Miller, D., Pavitt, S., Sharma, V., Forbes, G., Hooper, R., Bhattacharya, S., Kirkman-Brown, J., Coomarasamy, A., Lewis, S., Cutting, R., Brison, D., Pacey, A., West, R., Brian, K., Griffin, D. & Khalaf, Y., 2 Feb 2019, In: The Lancet. 393, 10170, p. 416-422 7 p.

    Research output: Contribution to journalArticlepeer-review

  12. Ovarian reserve in women with sickle cell disease

    Kopeika, J., Oyewo, A., Punnialingam, S., Reddy, N., Khalaf, Y., Howard, J., Mononen, S. & Oteng-Ntim, E., 1 Feb 2019, In: PLoS ONE. 14, 2, e0213024.

    Research output: Contribution to journalArticlepeer-review

  13. Effects of thyroid hormone on mitochondria and metabolism of human preimplantation embryos

    Noli, L., Khorsandi, S. E., Pyle, A., Giritharan, G., Fogarty, N., Capalbo, A., Devito, L., Jovanovic, V. M., Khurana, P., Rosa, H., Kolundzic, N., Cvoro, A., Niakan, K. K., Malik, A., Foulk, R., Heaton, N., Ardawi, M. S., Chinnery, P. F., Ogilvie, C., Khalaf, Y. & 1 others, Ilic, D., 1 Jan 2019, In: Stem Cells.

    Research output: Contribution to journalArticlepeer-review

  14. Levothyroxine in women with thyroid peroxidase antibodies before conception

    Dhillon-Smith, R. K., Middleton, L. J., Sunner, K. K., Cheed, V., Baker, K., Farrell-Carver, S., Bender-Atik, R., Agrawal, R., Bhatia, K., Edi-Osagie, E., Ghobara, T., Gupta, P., Jurkovic, D., Khalaf, Y., MacLean, M., McCabe, C., Mulbagal, K., Nunes, N., Overton, C., Quenby, S. & 14 others, Rai, R., Raine-Fenning, N., Robinson, L., Ross, J., Sizer, A., Small, R., Tan, A., Underwood, M., Kilby, M. D., Boelaert, K., Daniels, J., Thangaratinam, S., Chan, S. Y. & Coomarasamy, A., 2019, In: New England Journal of Medicine. 380, 14, p. 1316-1325 10 p.

    Research output: Contribution to journalArticlepeer-review

  15. Author Correction: Segregation of mitochondrial DNA heteroplasmy through a developmental genetic bottleneck in human embryos

    Floros, V. I., Pyle, A., Dietmann, S., Wei, W., Tang, W. W. C., Irie, N., Payne, B., Capalbo, A., Noli, L., Coxhead, J., Hudson, G., Crosier, M., Strahl, H., Khalaf, Y., Saitou, M., Ilic, D., Surani, M. A. & Chinnery, P. F., 19 Apr 2018, (E-pub ahead of print) In: Nature Cell Biology. 1 p.

    Research output: Contribution to journalLetterpeer-review

  16. Early oocyte denudation does not compromise ICSI cycle outcome: a large retrospective cohort study

    Naji, O., Moska, N., Dajani, Y., El-Shirif, A., El-Ashkar, H., Hosni, M., Khalil, M., Khalaf, Y., Bolton, V. & El-Toukhy, T., 4 Apr 2018, (E-pub ahead of print) In: REPRODUCTIVE BIOMEDICINE ONLINE.

    Research output: Contribution to journalArticlepeer-review

  17. Pluripotent state transitions coordinate morphogenesis in mouse and human embryos

    Shahbazi, M. N., Scialdone, A., Skorupska, N., Weberling, A., Recher, G., Zhu, M., Jedrusik, A., Devito, L. G., Noli, L., MacAulay, I. C., Buecker, C., Khalaf, Y., Ilic, D., Voet, T., Marioni, J. C. & Zernicka-Goetz, M., 14 Dec 2017, In: NATURE. 552, p. 239-243 5 p., 7684.

    Research output: Contribution to journalLetterpeer-review

  18. Reply: Rapid changes in practice make analysis of historical databases irrelevant for contemporary counselling

    Sunkara, S. K., LaMarca, A., Polyzos, N. P., Seed, P. T. & Khalaf, Y., 25 Feb 2017, In: Human reproduction (Oxford, England). p. 1-2 2 p.

    Research output: Contribution to journalLetterpeer-review

  19. Human embryos from induced pluripotent stem cell-derived gametes: Ethical and quality considerations

    Ilic, D., Ogilvie, C., Noli, L., Kolundzic, N. & Khalaf, Y., 2017, In: Regenerative Medicine. 12, 6, p. 681-691 11 p.

    Research output: Contribution to journalReview articlepeer-review

  20. Human embryos created by embryo splitting secrete significantly lower levels of miRNA-30c

    Noli, L., Capalbo, A., Dajani, Y., Cimadomo, D., Bvumbe, J., Rienzi, L., Ubaldi, F. M., Ogilvie, C., Khalaf, Y. & Ilic, D., 9 Sep 2016, In: STEM CELLS AND DEVELOPMENT.

    Research output: Contribution to journalArticlepeer-review

  21. Hysteroscopy in recurrent in-vitro fertilisation failure (TROPHY): a multicentre, randomised controlled trial

    El-Toukhy, T., Campo, R., Khalaf, Y., Tabanelli, C., Gianaroli, L., Gordts, S. S., Gordts, S., Mestdagh, G., Mardesic, T., Voboril, J., Marchino, G. L., Benedetto, C., Al-Shawaf, T., Sabatini, L., Seed, P. T., Gergolet, M., Grimbizis, G., Harb, H. & Coomarasamy, A., 25 Jun 2016, In: Lancet. 387, 10038, p. 2614-2621 8 p.

    Research output: Contribution to journalArticlepeer-review

  22. Self-organization of the human embryo in the absence of maternal tissues

    Shahbazi, M. N., Jedrusik, A., Vuoristo, S., Recher, G., Hupalowska, A., Bolton, V., Fogarty, N. M. E., Campbell, A., Devito, L. G., Ilic, D., Khalaf, Y., Niakan, K. K., Fishel, S. & Zernicka-Goetz, M., 1 Jun 2016, In: Nature cell biology. 18, 6, p. 700-708 9 p.

    Research output: Contribution to journalArticlepeer-review

  23. PROMISE: first-trimester progesterone therapy in women with a history of unexplained recurrent miscarriages - a randomised, double-blind, placebo-controlled, international multicentre trial and economic evaluation

    Coomarasamy, A., Williams, H., Truchanowicz, E., Seed, P. T., Small, R., Quenby, S., Gupta, P., Dawood, F., Koot, Y. E., Atik, R. B., Bloemenkamp, K. W., Brady, R., Briley, A., Cavallaro, R., Cheong, Y. C., Chu, J., Eapen, A., Essex, H., Ewies, A., Hoek, A. & 18 others, Kaaijk, E. M., Koks, C. A., Li, T-C., MacLean, M., Mol, B. W., Moore, J., Parrott, S., Ross, J. A., Sharpe, L., Stewart, J., Trépel, D., Vaithilingam, N., Farquharson, R. G., Kilby, M. D., Khalaf, Y., Goddijn, M., Regan, L. & Rai, R., May 2016, In: Health technology assessment (Winchester, England). 20, 41, p. 1-92 92 p.

    Research output: Contribution to journalArticlepeer-review

  24. MicroRNAs in spent blastocyst culture medium are derived from trophectoderm cells and can be explored for human embryo reproductive competence assessment

    Capalbo, A., Ubaldi, F. M., Cimadomo, D., Noli, L., Khalaf, Y., Farcomeni, A., Ilic, D. & Rienzi, L., 1 Jan 2016, In: Fertility and Sterility. 105, 1, p. 225-235.e3

    Research output: Contribution to journalArticlepeer-review

  25. Discordant Growth of Monozygotic Twins Starts at the Blastocyst Stage: A Case Study

    Noli, L., Capalbo, A., Ogilvie, C., Khalaf, Y. & Ilic, D., 8 Dec 2015, In: Stem cell reports. 5, 6, p. 946-953 8 p.

    Research output: Contribution to journalArticlepeer-review

  26. Developmental clock compromises human twin model created by embryo splitting

    Noli, L., Dajani, Y., Capalbo, A., Bvumbe, J., Rienzi, L., Ubaldi, F. M., Ogilvie, C., Khalaf, Y. & Ilic, D., Dec 2015, In: Human reproduction (Oxford, England). 30, 12, p. 2774-2784

    Research output: Contribution to journalArticlepeer-review

  27. Association between response to ovarian stimulation and miscarriage following IVF: an analysis of 124 351 IVF pregnancies

    Sunkara, S., Khalaf, Y., Maheshwari, A., Seed, P. & Coomarasamy, A., Jun 2014, In: Human Reproduction. 29, 6, p. 1218-1224 7 p.

    Research output: Contribution to journalArticlepeer-review

  28. Hysteroscopy prior to the first IVF cycle: A systematic review and meta-analysis

    Pundir, J., Pundir, V., Omanwa, K., Khalaf, Y. & El-Toukhy, T., Feb 2014, In: REPRODUCTIVE BIOMEDICINE ONLINE. 28, 2, p. 151-161 11 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  29. Benefits and drawbacks of preimplantation genetic diagnosis (PGD) for reciprocal translocations: lessons from a prospective cohort study

    Scriven, P. N., Flinter, F. A., Khalaf, Y., Lashwood, A. & Ogilvie, C. M., Oct 2013, In: European Journal of Human Genetics. 21, 10, p. 1035-1041 7 p.

    Research output: Contribution to journalArticlepeer-review

  30. Perioperative morbidity associated with abdominal myomectomy compared with total abdominal hysterectomy for uterine fibroids

    Pundir, J., Walawalkar, R., Seshadri, S., Khalaf, Y. & El-Toukhy, T., Oct 2013, In: Journal of Obstetrics and Gynaecology. 33, 7, p. 655-662 8 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  31. Cassandra's prophecy and the trend of delaying childbearing: is there a simple answer to this complex problem?

    Khalaf, Y., Jul 2013, In: REPRODUCTIVE BIOMEDICINE ONLINE. 27, 1, p. 17-18 2 p.

    Research output: Contribution to journalEditorialpeer-review

  32. Peri-operative morbidity associated with abdominal myomectomy for very large fibroid uteri

    Pundir, J., Krishnan, N., Siozos, A., Uwins, C., Kopeika, J., Khalaf, Y. & El-Toukhy, T., Apr 2013, In: European Journal of Obstetrics Gynecology and Reproductive Biology. 167, 2, p. 219-224 6 p.

    Research output: Contribution to journalArticlepeer-review

  33. Effect of heparin on the outcome of IVF treatment: a systematic review and meta-analysis

    Seshadri, S., Sunkara, S. K., Khalaf, Y., El-Toukhy, T. & Hamoda, H., Dec 2012, In: REPRODUCTIVE BIOMEDICINE ONLINE. 25, 6, p. 572-584 13 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  34. Local endometrial injury and IVF outcome: a systematic review and meta-analysis

    El-Toukhy, T., Sunkara, S. & Khalaf, Y., Oct 2012, In: REPRODUCTIVE BIOMEDICINE ONLINE. 25, 4, p. 345-354 10 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  35. Reply: Embryo selection and IVF

    Scriven, P. N., Ogilvie, C. M. & Khalaf, Y., Sep 2012, In: Human Reproduction. 27, 9, p. 2877-2877 1 p.

    Research output: Contribution to journalLetterpeer-review

  36. Embryo selection in IVF: is polar body array comparative genomic hybridization accurate enough?

    Scriven, P. N., Ogilvie, C. M. & Khalaf, Y., Apr 2012, In: Human Reproduction. 27, 4, p. 951-953 3 p.

    Research output: Contribution to journalArticlepeer-review

  37. Meta-analysis of GnRH antagonist protocols: do they reduce the risk of OHSS in PCOS?

    Pundir, J., Sunkara, S. K., El-Toukhy, T. & Khalaf, Y., Jan 2012, In: REPRODUCTIVE BIOMEDICINE ONLINE. 24, 1, p. 6-22 17 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  38. Delayed blastocyst development does not influence the outcome of frozen-thawed transfer cycles

    El-Toukhy, T., Wharf, E., Walavalkar, R., Singh, A., Bolton, V., Khalaf, Y. & Braude, P., Dec 2011, In: Bjog-An international journal of obstetrics and gynaecology. 118, 13, p. 1551-1556 6 p.

    Research output: Contribution to journalArticlepeer-review

  39. Outcomes of ovarian stimulation in a two-day oocyte collection week with PGD cycles compared to a five-day oocyte collection week with conventional IVF/ICSI cycles

    Hamoda, H., Pepas, L., Freed, C., Grace, J., Khalaf, Y., Braude, P. & El-Toukhy, T., Dec 2011, In: HUMAN FERTILITY. 14, 4, p. 254-260 7 p.

    Research output: Contribution to journalArticlepeer-review

  40. The search for a practice model to reduce miscarriage after assisted reproduction

    Khalaf, Y. & El-Toukhy, T., Dec 2011, In: REPRODUCTIVE BIOMEDICINE ONLINE. 23, 6, p. 695-696 2 p.

    Research output: Contribution to journalEditorialpeer-review

  41. Influence of BMI on risk of miscarriage after single blastocyst transfer

    Rittenberg, V., Sobaleva, S., Ahmad, A., Oteng-Ntim, E., Bolton, V., Khalaf, Y., Braude, P. & El-Toukhy, T., Oct 2011, In: Human Reproduction. 26, 10, p. 2642-2650 9 p.

    Research output: Contribution to journalArticlepeer-review

  42. Reducing multiple pregnancies after assisted reproduction treatment: Quebec says 'Yes, we can!'

    Khalaf, Y., Bewley, S. & Braude, P., Oct 2011, In: REPRODUCTIVE BIOMEDICINE ONLINE. 23, 4, p. 407-410 4 p.

    Research output: Contribution to journalEditorialpeer-review

  43. Effect of androgen supplementation or modulation on ovarian stimulation outcome in poor responders: a meta-analysis

    Sunkara, S. K., Pundir, J. & Khalaf, Y., Jun 2011, In: REPRODUCTIVE BIOMEDICINE ONLINE. 22, 6, p. 545-555 11 p.

    Research output: Contribution to journalLiterature reviewpeer-review

  44. Meiotic segregation of Robertsonian translocations ascertained in cleavage-stage embryos-implications for preimplantation genetic diagnosis

    Bint, S. M., Ogilvie, C. M., Flinter, F. A., Khalaf, Y. & Scriven, P. N., Jun 2011, In: Human Reproduction. 26, 6, p. 1575-1584 10 p.

    Research output: Contribution to journalArticlepeer-review

  45. The effect of adjuvant heparin on the outcome of IVF treatment: A systematic review and meta-analyses

    Seshadri, S., Sunkara, S. K., Hamooda, H., Khalaf, Y. & El-Toukhy, T., 2011, In: Human Reproduction. 26, p. I352 - I352

    Research output: Contribution to journalMeeting abstract

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