Peter joined the Department in 1998 and was Head of Department from 2009 until December 2015.
He completed his undergraduate training in the United Kingdom and specialised in Obstetrics and Gynaecology in New Zealand.
He subsequently completed his sub-specialty training in gynaecological oncology in Melbourne and his interests include gynaecological oncology and advanced preinvasive disease of the genital tract.
Peter is a keen outdoor sports person and enjoys tramping, mountain climbing and surfing.
Publications
Gibson-Helm, M., Slater, T., MacDonald, E. J., Stevenson, K., Adcock, A., Geller, S., … Hibma, M., Sykes, P., … Lawton, B. (2023). Te Ara Waiora-Implementing human papillomavirus (HPV) primary testing to prevent cervical cancer in Aotearoa New Zealand: A protocol for a non-inferiority trial. PLoS ONE, 18(3), e0280643. doi: 10.1371/journal.pone.0280643
Kumar, D., Moghiseh, M., Chitcholtan, K., Mutreja, I., Lowe, C., Kaushik, A., Butler, A., Sykes, P., Anderson, N., & Raja, A. (2023). LHRH conjugated gold nanoparticles assisted efficient ovarian cancer targeting evaluated via spectral photon-counting CT imaging: A proof-of-concept research. Journal of Materials Chemistry B. Advance online publication. doi: 10.1039/d2tb02416k
Cabasag, C. J., Arnold, M., Rutherford, M., Ferlay, J., Bardot, A., Morgan, E., … Sykes, P., … Soerjomataram, I. (2023). Shifting incidence and survival of epithelial ovarian cancer (1995-2014): A SurvMark-2 study. International Journal of Cancer. Advance online publication. doi: 10.1002/ijc.34403
Saito, M., Rajesh, A., Innes, C., van der Griend, R., Fitzgerald, P., Simcock, B., Sykes, P., & Hibma, M. (2022, August). The immune microenvironment in progression and regression of cervical intraepithelial neoplasia grade 2. Verbal presentation at the Cancer Satellite Meeting: Queenstown Research Week, Queenstown, New Zealand.
Saito, M., Rajesh, A., Innes, C., van der Griend, R., Fitzgerald, P., Simcock, B., Sykes, P., & Hibma, M. (2022). Blimp-1 is a prognostic indicator for progression of cervical intraepithelial neoplasia grade 2. Journal of Cancer Research & Clinical Oncology. Advance online publication. doi: 10.1007/s00432-022-03993-4
Sykes, P. (2013). Obstetrics and Gynaecology. In P. Joyce, G. Nicholls, K. Thomas & T. Wilkinson (Eds.), The Christchurch experience: 40 years of research and teaching. (pp. 33-37). Christchurch, New Zealand: University of Otago.
Chapter in Book - Other
Cabasag, C. J., Arnold, M., Rutherford, M., Ferlay, J., Bardot, A., Morgan, E., … Sykes, P., … Soerjomataram, I. (2023). Shifting incidence and survival of epithelial ovarian cancer (1995-2014): A SurvMark-2 study. International Journal of Cancer. Advance online publication. doi: 10.1002/ijc.34403
Journal - Research Article
Kumar, D., Moghiseh, M., Chitcholtan, K., Mutreja, I., Lowe, C., Kaushik, A., Butler, A., Sykes, P., Anderson, N., & Raja, A. (2023). LHRH conjugated gold nanoparticles assisted efficient ovarian cancer targeting evaluated via spectral photon-counting CT imaging: A proof-of-concept research. Journal of Materials Chemistry B. Advance online publication. doi: 10.1039/d2tb02416k
Journal - Research Article
Dunn, E., Chitcholtan, K., Sykes, P., & Garrill, A. (2022). The anti-proliferative effect of PI3K/mTOR and ERK inhibition in monolayer and three-dimensional ovarian cancer cell models. Cancers, 14, 395. doi: 10.3390/cancers14020395
Journal - Research Article
Saito, M., Rajesh, A., Innes, C., van der Griend, R., Fitzgerald, P., Simcock, B., Sykes, P., & Hibma, M. (2022). Blimp-1 is a prognostic indicator for progression of cervical intraepithelial neoplasia grade 2. Journal of Cancer Research & Clinical Oncology. Advance online publication. doi: 10.1007/s00432-022-03993-4
Journal - Research Article
Sarwar, M., Sykes, P. H., Chitcholtan, K., & Evans, J. J. (2022). Collagen I dysregulation is pivotal for ovarian cancer progression. Tissue & Cell, 74, 101704. doi: 10.1016/j.tice.2021.101704
Journal - Research Article
Sykes, P. H., Simcock, B. J., Innes, C. R., Harker, D., Williman, J. A., Whitehead, M., van der Griend, R. A., … Hibma, M., … Petrich, S., … Sadler, L. (2022). Predicting regression of cervical intraepithelial neoplasia grade 2 in women under 25 years. American Journal of Obstetrics & Gynecology, 226, 222.e1-222.e13. doi: 10.1016/j.ajog.2021.09.009
Journal - Research Article
Edmonson, R. J., O'Connell, R. L., Banerjee, S., Mileshkin, L., Sykes, P., Beale, P., … on behalf of PARAGON Investigators. (2021). Phase 2 study of anastrozole in rare cohorts of patients with estrogen receptor/progesterone receptor positive leiomyosarcomas and carcinosarcomas of the uterine corpus: The PARAGON trial (ANZGOG 0903). Gynecologic Oncology, 163, 524-530. doi: 10.1016/j.ygyno.2021.09.010
Journal - Research Article
Janda, M., Robledo, K. P., Gebski, V., Armes, J. E., Alizart, M., Cummings, M., … Sykes, P., … Obermair, A. (2021). Complete pathological response following levonorgestrel intrauterine device in clinically stage 1 endometrial adenocarcinoma: Results of a randomized clinical trial. Gynecologic Oncology, 161(1), 143-151. doi: 10.1016/j.ygyno.2021.01.029
Journal - Research Article
Sarwar, M., Sykes, P. H., Chitcholtan, K., & Evans, J. J. (2021). Deciphering biophysical modulation in ovarian cancer cells. Cell Biochemistry & Biophysics, 79, 375-386. doi: 10.1007/s12013-020-00964-9
Journal - Research Article
Cabasag, C. J., Butler, J., Arnold, M., Rutherford, M., Bardot, A., Ferlay, J., … Sykes, P., … Soerjomataram, I. (2020). Exploring variations in ovarian cancer survival by age and stage (ICBP SurvMark-2): A population-based study. Gynecologic Oncology, 157, 234-244. doi: 10.1016/j.ygyno.2019.12.047
Journal - Research Article
Chitcholtan, K., Harker, D., Simcock, B., & Sykes, P. (2020). Sensitivity of EGFR/HER-2 positive cells isolated from ascitic fluid of advanced ovarian cancer patients to EGFR/HER-2 inhibitors. Applied Sciences, 10(7), 2343. doi: 10.3390/app10072343
Journal - Research Article
Cohen, P. A., Leung, Y., Anderson, L., van der Griend, R., Chivers, P., Bilic, S., … Harker, D., … Simcock, B., … Sykes, P., … Wrede, C. D. H. (2020). Excisional treatment comparison for in situ endocervical adenocarcinoma (EXCISE): A phase 2 pilot randomized controlled trial to compare histopathological margin status, specimen size and fragmentation after loop electrosurgical excision procedure and cold knife cone biopsy. Gynecologic Oncology, 159, 623-629. doi: 10.1016/j.ygyno.2020.09.053
Journal - Research Article
Dempster-Rivett, K., Innes, C. R., Simcock, B. J., Harker, D., Williman, J. A., Van Der Griend, R. A., Whitehead, M., Hibma, M., … Petrich, S., Faherty, J., … Sykes, P. H. (2020). Evaluation of guidelines for observational management of cervical intraepithelial neoplasia 2 in young women. American Journal of Obstetrics & Gynecology, 223, 408.e1-408.e11. doi: 10.1016/j.ajog.2020.02.029
Journal - Research Article
Goyani, A. D., Innes, C. R., Simcock, B. J., Harker, D., Dudley, N. M., Eva, L., Bergzoll, C., MacNab, H., & Sykes, P. H. (2020). Trends in the diagnosis of high-grade cervical abnormalities in young women in the post-vaccination era. New Zealand Medical Journal, 133(1524), 50-63. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Innes, C. R. H., Williman, J. A., Simcock, B. J., Hider, P., Sage, M., Dempster-Rivett, K., … Sykes, P. H. (2020). Impact of human papillomavirus vaccination on rates of abnormal cervical cytology and histology in young New Zealand women. New Zealand Medical Journal, 133(1508), 72-84. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Norell, C. H., Butler, J., Farrell, R., Altman, A., Bentley, J., Cabasag, C. J., … Sykes, P. H., … Harrison, S. (2020). Exploring international differences in ovarian cancer treatment: A comparison of clinical practice guidelines and patterns of care. International Journal of Gynecological Cancer, 30, 1748-1756. doi: 10.1136/ijgc-2020-001403
Journal - Research Article
Adcock, A., Cram, F., Lawton, B., Geller, S., Hibma, M., Sykes, P., … Hart, S. (2019). Acceptability of self-taken vaginal HPV sample for cervical screening among an under-screened Indigenous population. Australian & New Zealand Journal of Obstetrics & Gynaecology, 59, 301-307. doi: 10.1111/ajo.12933
Journal - Research Article
Cohen, P. A., Powell, A., Böhm, S., Gilks, C. B., Stewart, C. J. R., Meniawy, T. M., … van der Griend, R., … the HGSC CRS Collaborative Network, including Simcock, B., Sykes, P., Vaughan, M. M., & Singh, N. (2019). Pathological chemotherapy response score is prognostic in tubo-ovarian high-grade serous carcinoma: A systematic review and meta-analysis of individual patient data. Gynecologic Oncology, 154, 441-448. doi: 10.1016/j.ygyno.2019.04.679
Journal - Research Article
Ekeroma, A. J., Naik, S., & Sykes, P. (2019). Systematic review of effective cervical cancer treatments in Small Island Developing States: A narrative synthesis. Pacific Journal of Reproductive Health, (8), 462-474. doi: 10.18313/pjrh.2019.906
Journal - Research Article
Fraser, K., Tan, A. L., Innes, C., Stephens, R., Tristram, A., Petrich, S., Lintott, C., Sykes, P. H., … Simcock, B. (2019). Patterns of referral and uptake of BReast CAncer (BRCA) gene testing of eligible women with ovarian cancer in New Zealand. New Zealand Medical Journal, 132(1490), 26-35. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Sarwar, M., Sykes, P. H., Chitcholtan, K., Alkaisi, M. M., & Evans, J. J. (2019). The extracellular topographical environment influences ovarian cancer cell behaviour. Biochemical & Biophysical Research Communications, 508, 1188-1194. doi: 10.1016/j.bbrc.2018.12.067
Journal - Research Article
Sykes, P., Eva, L., van der Griend, R., McNally, O., Blomfield, P., Brand, A., … Petrich, S., Kenwright, D., … Innes, C., Harker, D., … Simcock, B. (2019). Pathological process has a crucial role in sentinel node biopsy for vulvar cancer. Gynecologic Oncology, 153, 292-296. doi: 10.1016/j.ygyno.2019.02.012
Journal - Research Article
Tang, M., O'Connell, R. L., Amant, F., Beale, P., McNally, O., Sjoquist, K. M., … Sykes, P., … Friedlander, M. (2019). PARAGON: A phase II study of anastrozole in patients with estrogen receptor-positive recurrent/metastatic low-grade ovarian cancers and serous borderline ovarian tumors. Gynecologic Oncology, 154, 531-538. doi: 10.1016/j.ygyno.2019.06.011
Journal - Research Article
Yeoh, S., Simcock, B., Innes, C., Mclachlan, J., Harker, D., & Sykes, P. (2019). Trends in the overall survival rates in women with advanced ovarian cancer in a single tertiary centre in New Zealand. Australian & New Zealand Journal of Obstetrics & Gynaecology, 59, 861-866. doi: 10.1111/ajo.13076
Journal - Research Article
Evans, G. E., Phillipson, G. T. M., Sykes, P. H., McNoe, L. A., Print, C. G., & Evans, J. J. (2018). Does the endometrial gene expression of fertile women vary within and between cycles? Human Reproduction, 33(3), 452-463. doi: 10.1093/humrep/dex385
Journal - Research Article
Hassan, W., Chitcholtan, K., Sykes, P., & Garrill, A. (2018). Ascitic fluid from advanced ovarian cancer patients compromises the activity of receptor tyrosine kinase inhibitors in 3D cell clusters of ovarian cancer cells. Cancer Letters, 420, 168-181. doi: 10.1016/j.canlet.2018.02.013
Journal - Research Article
Hider, P., Dempster-Rivett, K., Williman, J., Dempster-Rivett, M., Sadler, L., McLeod, M., Miller, A., & Sykes, P. (2018). A review of cervical cancer occurrences in New Zealand 2008–2012. New Zealand Medical Journal, 131(1472), 53-63. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Innes, C. R., Sykes, P. H., Harker, D., Williman, J. A., Van der Griend, R. A., Whitehead, M., Hibma, M., … Petrich, S., Faherty, J., … Simcock, B. J. (2018). Changes in human papillomavirus genotypes associated with cervical intraepithelial neoplasia grade 2 lesions in a cohort of young women (2013–2016). Papillomavirus Research, 6, 77-82. doi: 10.1016/j.pvr.2018.10.010
Journal - Research Article
Jamieson, A., Sykes, P., Eva, L., Bergzoll, C., & Simcock, B. (2017). Subtypes of stage IV ovarian cancer: Response to treatment and patterns of disease recurrence. Gynecologic Oncology, 146(2), 273-278. doi: 10.1016/j.ygyno.2017.05.023
Journal - Research Article
Janda, M., Gebski, V., Davies, L. C., Forder, P., Brand, A., Hogg, R., … Sykes, P., … Simcock, B., … Obermair, A. (2017). Effect of total laparoscopic hysterectomy vs total abdominal hysterectomy on disease-free survival among women with stage 1 endometrial cancer: A randomised clinical trial. JAMA, 317(12), 1224-1233. doi: 10.1001/jama.2017.2068
Journal - Research Article
Kumar, D., Mutreja, I., Chitcholtan, K., & Sykes, P. (2017). Cytotoxicity and cellular uptake of different sized gold nanoparticles in ovarian cancer cells. Nanotechnology, 28, 475101. doi: 10.1088/1361-6528/aa935e
Journal - Research Article
Lindemann, K., Kok, P.-S., Stockler, M., Sykes, P., & Brand, A. (2017). Enhanced recovery after surgery for suspected ovarian malignancy: A survey of perioperative practice among gynecologic oncologists in Australia and New Zealand to inform a clinical trial. International Journal of Gynecological Cancer, 27(5), 1046-1050. doi: 10.1097/igc.0000000000000982
Journal - Research Article
Taghavi, K., Morell, S., Lamb, J., MacNab, H., Innes, C., Coffey, K., Williman, J., Simcock, B., & Sykes, P. (2017). Initial observation of CIN2 does not appear to reduce quality of life in women under 25 years of age. Australian & New Zealand Journal of Obstetrics & Gynaecology, 57(4), 473-478. doi: 10.1111/ajo.12633
Journal - Research Article
Tan, L. H., Sykes, P. H., Alkaisi, M. M., & Evans, J. J. (2017). Cell-like features imprinted in the physical nano- and micro-topography of the environment modify the responses to anti-cancer drugs of endometrial cancer cells. Biofabrication, 9(1), 015017. doi: 10.1088/1758-5090/aa5c9a
Journal - Research Article
Hassan, W., Chitcholtan, K., Sykes, P., & Garrill, A. (2016). A combination of two receptor tyrosine kinase inhibitors, canertinib and PHA665752 comprises ovarian cancer cell growth in 3D cell models. Oncology & Therapy, 4(2), 257-274. doi: 10.1007/s40487-016-0031-1
Journal - Research Article
Kumar, D., Mutreja, I., & Sykes, P. (2016). Seed mediated synthesis of highly mono-dispersed gold nanoparticles in the presence of hydroquinone. Nanotechnology, 27, 355601. doi: 10.1088/0957-4484/27/35/355601
Journal - Research Article
Stravens, M., Short, J., Johnson, K., Simcock, B., Shand, B., McGeoch, G., & Sykes, P. (2016). Management of postmenopausal bleeding by general practitioners in a community setting: An observational study. New Zealand Medical Journal, 129(1434), 59-68. Retrieved from http://www.nzma.org.nz/journal
Journal - Research Article
Tino, A. B., Chitcholtan, K., Sykes, P. H., & Garrill, A. (2016). Resveratrol and acetyl-resveratrol modulate activity of VEGF and IL-8 in ovarian cancer cell aggregates via attenuation of the NF-κB protein. Journal of Ovarian Research, 9, 84. doi: 10.1186/s13048-016-0293-0
Journal - Research Article
Hogg, S. J., Chitcholtan, K., Hassan, W., Sykes, P. H., & Garrill, A. (2015). Resveratrol, acetyl-resveratrol, and polydatin exhibit antigrowth activity against 3D cell aggregates of the SKOV-3 and OVCAR-8 ovarian cancer cell lines. Obstetrics & Gynecology International, 2015, 279591. doi: 10.1155/2015/279591
Journal - Research Article
Hogg, S. J., Evans, J. J., Sykes, P. H., & Chitcholtan, K. (2015). A method to investigate the anti-metabolic activity of anti-cancer agents on ovarian cancer cells cultured in a 96-well high throughput format. Journal of Ovarian Research, 8, 43. doi: 10.1186/s13048-015-0172-0
Journal - Research Article
Slatter, T. L., Hsia, H., Samaranayaka, A., Sykes, P., Clow, W., Devenish, C. J., … Royds, J. A., … Hung, N. A. (2015). Loss of ATRX and DAXX expression identifies poor prognosis for smooth muscle tumours of uncertain malignant potential and early stage uterine leiomyosarcoma. Journal of Pathology: Clinical Research, 1(2), 95-105. doi: 10.1002/cjp2.11
Journal - Research Article
Tan, L. H., Sykes, P. H., Alkaisi, M. M., & Evans, J. J. (2015). The characteristics of Ishikawa endometrial cancer cells are modified by substrate topography with cell-like features and the polymer surface. International Journal of Nanomedicine, 10, 4883-4895. doi: 10.2147/ijn.s86336
Journal - Research Article
Wilkinson, T. M., Sykes, P. H. H., Simcock, B., & Petrich, S. (2015). Recurrence of high-grade cervical abnormalities following conservative management of cervical intraepithelial neoplasia grade 2. American Journal of Obstetrics & Gynecology, 212(6), 769.e1-769.e7. doi: 10.1016/j.ajog.2015.01.010
Journal - Research Article
Amant, F., Floquet, A., Friedlander, M., Kristensen, G., Mahner, S., Nam, E. J., … Sykes, P., … Seddon, B. (2014). Gynecological Cancer InterGroup (GCIG) consensus review for endometrial stromal sarcoma. International Journal of Gynecological Cancer, 24(9, Suppl. 3), S67-S72. doi: 10.1097/igc.0000000000000205
Journal - Research Article
Evans, G. E., Martínez-Conejero, J. A., Phillipson, G. T. M., Sykes, P. H., Sin, I. L., Lam, E. Y. N., … Evans, J. J. (2014). In the secretory endometria of women, luminal epithelia exhibit gene and protein expressions that differ from those of glandular epithelia. Fertility & Sterility, 102(1), 307-317. doi: 10.1016/j.fertnstert.2014.04.005
Journal - Research Article
Lawton, B., Filoche, S. K., Rose, S. B., Stanley, J., Garrett, S., Robson, B., Brown, S., & Sykes, P. (2014). Uterine cancer: Exploring access to services in the public health system. Australian & New Zealand Journal of Obstetrics & Gynaecology, 54(5), 457-461. doi: 10.1111/ajo.12237
Journal - Research Article
Sykes, P., Gopala, K., Tan, A. L., Kenwright, D., Petrich, S., Molijn, A., & Chen, J. (2014). Type distribution of human papillomavirus among adult women diagnosed with invasive cervical cancer (stage 1b or higher) in New Zealand. BMC Infectious Diseases, 14, 374. doi: 10.1186/1471-2334-14-374
Journal - Research Article
Chitcholtan, K., Asselin, E., Parent, S., Sykes, P. H., & Evans, J. J. (2013). Differences in growth properties of endometrial cancer in three dimensional (3D) culture and 2D cell monolayer. Experimental Cell Research, 319(1), 75-87. doi: 10.1016/j.yexcr.2012.09.012
Journal - Research Article
Kang, M. Y., Sykes, P., Herbison, P., & Petrich, S. (2013). Retrospective analysis on timeframes of referral, diagnosis and treatment of patients with endometrial carcinomas in Dunedin Hospital, 2008–2011. New Zealand Medical Journal, 126(1384). Retrieved from http://www.nzma.org.nz/journal
Journal - Research Article