| 1. |
- Alvez, Maria Bueno, et al.
(författare)
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Next generation pan-cancer blood proteome profiling using proximity extension assay
- 2023
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Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 14:1
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Tidskriftsartikel (refereegranskat)abstract
- A comprehensive characterization of blood proteome profiles in cancer patients can contribute to a better understanding of the disease etiology, resulting in earlier diagnosis, risk stratification and better monitoring of the different cancer subtypes. Here, we describe the use of next generation protein profiling to explore the proteome signature in blood across patients representing many of the major cancer types. Plasma profiles of 1463 proteins from more than 1400 cancer patients are measured in minute amounts of blood collected at the time of diagnosis and before treatment. An open access Disease Blood Atlas resource allows the exploration of the individual protein profiles in blood collected from the individual cancer patients. We also present studies in which classification models based on machine learning have been used for the identification of a set of proteins associated with each of the analyzed cancers. The implication for cancer precision medicine of next generation plasma profiling is discussed.
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| 2. |
- Bjurberg, Maria, et al.
(författare)
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Primary treatment patterns and survival of cervical cancer in Sweden : A population-based Swedish Gynecologic Cancer Group Study
- 2019
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Ingår i: Gynecologic Oncology. - : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 0090-8258 .- 1095-6859. ; 155:2, s. 229-236
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Survival in cervical cancer has improved little over the last decades. We aimed to elucidate primary treatment patterns and survival. Methods: Population-based study of patients included in the Swedish Quality Registry for Gynecologic Cancer diagnosed 2011-2015. Main outcome was 5-year relative survival (RS). Age-standardised RS (AS-RS) was estimated for the total cohort and for the pooled study population of squamous, adenosquamous-, adenocarcinoma. Results: Median follow-up time was 4.6 years. The study population consisted of 2141 patients; 97% of the 2212 patients in the total cohort and the 5-year AS-RS was 71% and 70%, respectively. RS stage IB1: surgery alone 95% vs. 72% for definitive chemoradiotherapy (CT-RT) (p < 0.001). In stage IIA1 74% had CTRL, and 47% of operated patients received adjuvant (CT)-RT. RS stage IB2: surgically treated 81% (69% received adjuvant (CT)-RT) vs. 76% for (CT)-RT (p = 0.73). RS stage IIB: 77% for CT-RT + brachytherapy BT), 37% for RT + BT (p = 0.045) and 27% for RT-BT (p < 0.001). Stages III-IVA; <40% received CT-RT + BT, RS 45% vs. 18% for RT-BT (RR 4.1, p < 0.001). RS stage IVB 7%. Conclusion: Primary treatment of cervical cancer in Sweden adhered to evidence-based standard of care. Areas of improvement include optimising treatment for stages III-IVA, and avoiding combining surgery and radiotherapy. (C) 2019 Elsevier Inc. All rights reserved.
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| 3. |
- Borgfeldt, Christer, et al.
(författare)
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Survival in endometrial cancer in relation to minimally invasive surgery or open surgery : a Swedish Gynecologic Cancer Group (SweGCG) study
- 2021
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Ingår i: BMC Cancer. - : BioMed Central (BMC). - 1471-2407 .- 1471-2407. ; 21:1
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundThe aim of this study was to analyze overall survival in endometrial cancer patients’ FIGO stages I-III in relation to surgical approach; minimally invasive (MIS) or open surgery (laparotomy).MethodsA population-based retrospective study of 7275 endometrial cancer patients included in the Swedish Quality Registry for Gynecologic Cancer diagnosed from 2010 to 2018. Cox proportional hazard models were used in univariable and multivariable survival analyses.ResultsIn univariable analysis open surgery was associated with worse overall survival compared with MIS hazard ratio, HR, 1.39 (95% CI 1.18–1.63) while in the multivariable analysis, surgical approach (MIS vs open surgery) was not associated with overall survival after adjustment for known risk factors (HR 1.12, 95% CI 0.95–1.32). Higher FIGO stage, non-endometrioid histology, non-diploid tumors, lymphovascular space invasion and increasing age were independent risk factors for overall survival.ConclusionThe minimal invasive or open surgical approach did not show any impact on survival for patients with endometrial cancer stages I-III when known prognostic risk factors were included in the multivariable analyses.
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| 4. |
- Dahm-Kähler, Pernilla, 1964, et al.
(författare)
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Implementation of National Guidelines increased survival in advanced ovarian cancer-A population-based nationwide SweGCG study
- 2021
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Ingår i: Gynecologic Oncology. - : Elsevier BV. - 0090-8258 .- 1095-6859. ; 161:1, s. 244-250
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Tidskriftsartikel (refereegranskat)abstract
- Aim. The first Swedish National Guidelines for Ovarian Cancer (NGOC) were published in 2012. We aimed to evaluate surgical outcomes and survival in patients with stage IIIC-IV disease, before and after the NGOC implementation. Method. Women with primary epithelial ovarian cancer, FIGO stage IIIC?IV, registered in the Swedish Quality Registry for Gynecologic Cancer 2008?2011 and 2013?2016 were included. Surgical outcomes were analyzed, including frequency of complete cytoreduction (R0). Relative survival (RS) and excess mortality rate ratios (EMRRs) were computed as measures of survival. Univariable and multivariable regression (Poisson) were calculated. Results. In total, 3728 women were identified, 1746 before and 1982 after NGOC. After adjusting for age and stage, survival was improved 2013?2016 vs. 2008?2011 (EMRR 0.89; 95%CI:0.82?0.96, p < 0.05). For women undergoing primary debulking surgery (PDS), R0 frequency (28.9% vs. 53.3%; p < 0.001) and 5-year RS (29.6% (95% CI:26.8?32.8) vs. 37.4% (95%CI:33.6?41.7)) were increased, but fewer patients (58% vs. 44%, p < 0.001) underwent PDS after NGOC implementation. Median survival for the PDS cohort increased from 35 months (95%CI,32.8?39.2) to 43 months (95%CI,40.9?46.4). In the neoadjuvant chemotherapy (NACT) + interval debulking surgery (IDS) cohort, R0 increased (36.8% to 50.1%, p < 0.001), but not 5-year RS (17.5% vs. 20.7%,ns). Compared to PDS, the EMRR was 1.32 (95%CI,1.19 & ndash;1.47, p < 0.001) for NACT+IDS and 3.00 (95% CI,2.66 & ndash;3.38, p < 0.001) for chemotherapy alone. In multivariable analyses, PDS, R0, age <= 70 years, and stage IIIC were found to be independent factors for improved RS. Conclusion. Implementation of the first National Guidelines for Ovarian Cancer improved relative survival in advanced ovarian cancer. (c) 2021 Published by Elsevier Inc.
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| 5. |
- Dahm-Kähler, Pernilla, 1964, et al.
(författare)
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Population-based study of survival for women with serous cancer of the ovary, fallopian tube, peritoneum or undesignated origin - on behalf of the Swedish gynecological cancer group (SweGCG)
- 2017
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Ingår i: Gynecologic Oncology. - : Elsevier BV. - 0090-8258 .- 1095-6859. ; 144:1, s. 167-173
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Tidskriftsartikel (refereegranskat)abstract
- Objective. The aim of the study was to determine survival outcome in patients with serous cancer in the ovary, fallopian tube, peritoneum and of undesignated origin. Methods. Nation-wide population-based study of women 18 years with histologically verified non-uterine serous cancer, included in the Swedish Quality Registry for primary cancer of the ovary, fallopian tube and peritoneum diagnosed 2009-2013. Relative survival (RS) was estimated using the Ederer II method. Simple and multivariable analyses were estimated by Poisson regression models. Results. Of 5627 women identified, 1246 (22%) had borderline tumors and 4381 had malignant tumors. In total, 2359 women had serous cancer; 71% originated in the ovary (OC), 9% in the fallopian tube (FTC), 9% in the peritoneum (PPC) and 11% at an undesignated primary site (UPS). Estimated RS at 5-years was 37%; for FTC 54%, 40% for OC, 34% for PPC and 13% for UPS. In multivariable regression analyses restricted to women who had undergone primary or interval debulldng surgery for OC, FTC and PPC, site of origin was not independently associated with survival. Significant associations with worse survival were found for advanced stages (RR 2.63, P<0.001), moderate (RR 1.90, P<0.047) and poor differentiation (RR 2.20, P<0.009), neoadjuvant chemotherapy (RR1.33, P<0.022), residual tumor (RR 2.65, P<0.001) and platinum single (2.34, P<0.001) compared to platinum combination chemotherapy. Conclusion. Survival was poorer for serous cancer at UPS than for ovarian, fallopian tube and peritoneal cancer. Serous cancer at UPS needs to be addressed when reporting and comparing survival rates of ovarian cancer. (C) 2016 Elsevier Inc. All rights reserved.
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| 6. |
- Falconer, Henrik, et al.
(författare)
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Robot-assisted approach to cervical cancer (RACC) : an international multi-center, open-label randomized controlled trial
- 2019
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Ingår i: International Journal of Gynecological Cancer. - : BMJ Publishing Group Ltd. - 1048-891X .- 1525-1438. ; 29:6, s. 1072-1076
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Tidskriftsartikel (refereegranskat)abstract
- Background: Radical hysterectomy with pelvic lymphadenectomy represents the standard treatment for early-stage cervical cancer. Results from a recent randomized controlled trial demonstrate that minimally invasive surgery is inferior to laparotomy with regards to disease-free and overall survival.Primary Objective: To investigate the oncologic safety of robot-assisted surgery for early-stage cervical cancer as compared with standard laparotomy.Study Hypothesis: Robot-assisted laparoscopic radical hysterectomy is non-inferior to laparotomy in regards to recurrence-free survival with the advantage of fewer post-operative complications and superior patient-reported outcomes.Trial Design: Prospective, multi-institutional, international, open-label randomized clinical trial. Consecutive women with early-stage cervical cancer will be assessed for eligibility and subsequently randomized 1:1 to either robot-assisted laparoscopic surgery or laparotomy. Institutional review board approval will be required from all participating institutions. The trial is coordinated from Karolinska University Hospital, Sweden.Major Inclusion/Exclusion Criteria: Women over 18 with cervical cancer FIGO (2018) stages IB1, IB2, and IIA1 squamous, adenocarcinoma, or adenosquamous will be included. Women are not eligible if they have evidence of metastatic disease, serious co-morbidity, or a secondary invasive neoplasm in the past 5 years.Primary Endpoint: Recurrence-free survival at 5 years between women who underwent robot-assisted laparoscopic surgery versus laparotomy for early-stage cervical cancer.Sample Size: The clinical non-inferiority margin in this study is defined as a 5-year recurrence-free survival not worsened by >7.5%. With an expected recurrence-free survival of 85%, the study needs to observe 127 events with a one-sided level of significance (alpha) of 5% and a power (1-beta) of 80%. With 5 years of recruitment and 3 years of follow-up, the necessary number of events will be reached if the study can recruit a total of 768 patients.Estimated Dates for Completing Accrual and Presenting Results: Trial launch is estimated to be May 2019 and the trial is estimated to close in May 2027 with presentation of data shortly thereafter.
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| 7. |
- Hellman, K., et al.
(författare)
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Primary treatment and relative survival by stage and age in vulvar squamous cell carcinoma: A population-based SweGCG study
- 2020
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Ingår i: Gynecologic Oncology. - : Elsevier BV. - 0090-8258 .- 1095-6859. ; 159:3, s. 663-671
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Vulvar cancer affects mainly elderly women and with an ageing population the incidence has increased. We explored the primary treatment patterns and relative survival of patients with vulvar squamous cell carcinoma (VSCC) by stage and age-group. Methods: A population-based nationwide study on women diagnosed with VSCC between 2012 and 2016 and registered in the Swedish Quality Registry for Gynecologic Cancer (SQRGC). Main outcome was 5-year relative survival (RS) estimated by the Pohar Perme method. The relative risk of excess mortality (EMRR) between different groups was analyzed by Poisson regression. The age-standardized relative survival (AS-RS) was estimated for the total cohort. Results: Median follow-up time was 41 months. The study population included 657 women; 33% were ≥ 80 years old. FIGO stage I was most common (55%). Primary surgery was performed in 96% stage I, 65% stage II, 80% stage III and 28% stage IV. In women ≥80 years, exploration of the groins and chemoradiotherapy was less often performed. They also received lower mean doses of radiation than younger women. The 5-year AS-RS was 74%. 5-year RS was 84% for stage I, 60% for stage II, 54% for stage III and 35% for stage IV. The EMRR for women ≥80 years compared with women <60 years was 4.3 (p < 0.001); 4.9 (p < 0.001) for stages I-II and 3.5(p = 0.007) for stage III. Conclusions: In general, primary treatment of patients with vulvar squamous cell carcinoma in Sweden adhered to guidelines. Areas of improvement include treatment for stage II and for the very old. © 2020 Elsevier Inc.
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| 8. |
- Hjerpe, Elisabet, et al.
(författare)
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Lymph node metastases as only qualifier for stage IV serous ovarian cancer confers longer survival than other sites of distant disease - a Swedish Gynecologic Cancer Group (SweGCG) study.
- 2018
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Ingår i: Acta oncologica (Stockholm, Sweden). - : TAYLOR & FRANCIS LTD. - 1651-226X .- 0284-186X. ; 57:3, s. 331-337
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Tidskriftsartikel (refereegranskat)abstract
- The International Federation of Gynecology and Obstetrics (FIGO) ovarian cancer staging system includes no sub-stage for lymph nodes (LN) as only distant disease manifestation. We explore the prognostic implication of LN as only stage IV classifier in serous ovarian cancer.This is a nation-wide, population-based study on 551 women with serous stage IV cancers diagnosed between 2009-2014. We compare overall survival (OS) in women with LN as only distant metastatic site to those with pleural metastases only and to patients with other/multiple stage IV manifestations. Cox regression models were used for uni- and multivariable estimations.Of 551stage IV cases, distant metastatic site was registered in 433. Median OS for women with LN (n = 51) was 41.4 months, compared to 25.2 and 26.8 months for patients with pleural (n = 195) or other/multiple (n = 187) distant metastases (p = .0007). The corresponding five-year survival rates were 32, 11 and 22%, respectively. Multivariable analyzes confirmed shorter survival for women with pleural (HR 2.99, p = .001) or other/multiple distant sites (HR 2.67, p = .007), as compared to LN cases. LN only patients lived 9.1 months longer after primary than after interval surgery, but this difference was not significant (p = .245).Women with stage IV serous ovarian cancer having lymph nodes as only distant metastatic site live longer than other stage IV patients.
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| 9. |
- Jonsdottir, Björg, et al.
(författare)
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Preoperative and intraoperative assessment of myometrial invasion in endometrial cancer—A Swedish Gynecologic Cancer Group (SweGCG) study
- 2021
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 0001-6349 .- 1600-0412. ; 100:8, s. 1526-1533
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Deep myometrial invasion (≥50%) is a prognostic factor for lymph node metastases and decreased survival in endometrial cancer. There is no consensus regarding which pre/intraoperative diagnostic method should be preferred. Our aim was to explore the pattern of diagnostic methods for myometrial invasion assessment in Sweden and to evaluate differences among magnetic resonance imaging (MRI), transvaginal sonography, frozen section, and gross examination in clinical practice. Material and methods: This is a nationwide historical cohort study; women with endometrial cancer with data on assessment of myometrial invasion and FIGO stage I-III registered in the Swedish Quality Registry for Gynecologic Cancer (SQRGC) between 2017 and 2019 were eligible. Data on age, histology, FIGO stage, method, and results of myometrial invasion assessment, pathology results, and hospital level were collected from the SQRGC. The final assessment by the pathologist was considered the reference standard. Results: In the study population of 1401 women, 32% (n = 448) had myometrial invasion of 50% of more. The methods reported for myometrial invasion assessment were transvaginal sonography in 59%, MRI in 28%, gross examination in 8% and frozen section in 5% of cases. Only minor differences were found for age and FIGO stage when comparing methods applied for myometrial invasion assessment. The sensitivity, specificity, and accuracy to find myometrial invasion of 50% or more with transvaginal sonography were 65.6%, 80.3%, and 75.8%, for MRI they were 76.9%, 71.9%, and 73.8%, for gross examination they were 71.9%, 93.6%, and 87.3%, and for frozen section they were 90.0%, 92.7%, and 92.0%, respectively. Conclusions: In Sweden, the assessment of deep myometrial invasion is most often performed with transvaginal sonography, but the sensitivity is lower than for the other diagnostic methods. In clinical practice, the accuracy is moderate for transvaginal sonography and MRI. © 2021 The Authors. Acta Obstetricia et Gynecologica Scandinavica published by John Wiley & Sons Ltd on behalf of Nordic Federation of Societies of Obstetrics and Gynecology (NFOG)
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| 10. |
- Marcickiewicz, Janusz, et al.
(författare)
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The wait time to primary surgery in endometrial cancer - impact on survival and predictive factors : a population-based SweGCG study
- 2022
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Ingår i: Acta Oncologica. - : Informa UK Limited. - 0284-186X .- 1651-226X. ; 61:1, s. 30-37
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Tidskriftsartikel (refereegranskat)abstract
- Background Poor survival rates in different cancer types are sometimes blamed on diagnostic and treatment delays, and it has been suggested that such delays might be related to sociodemographic factors such as education and ethnicity. We examined associations of the wait time from diagnosis to surgery and survival in endometrial cancer (EC) and explored patient and tumour factors influencing the wait time. Material and methods In this historical population-based cohort study, The Swedish Quality Registry for Gynaecologic Cancer (SQRGC) was used to identify EC patients who underwent primary surgery between 2010 and 2018. Factors associated with a wait time > 32 d were analysed with logistic regression. The 32-d time point was defined in accordance with the Swedish Standardisation Cancer Care programme. Adjusted Poisson regression analyses were used to analyse excess mortality rate ratio (EMRR). Results Out of 7366 women, 5535 waited > 32 d for surgery and 1098 > 70 d. The overall median wait time was 44 d. The factors most strongly associated with a wait time > 32 d were surgery at a university hospital (adjusted odds ratio [OR] 1.34, 95% confidence interval [CI] 1.08-1.66) followed by country of birth (OR 1.31, 95% CI 1.10-1.55) and year of diagnosis. There were no associations between wait time and histology or age. A wait time < 15 d was associated with higher mortality (adjusted EMRR 2.29,95% CI 1.36-3.84) whereas no negative survival impact was seen with a wait time of 70 d. Age, tumour stage, histology and risk group were highly associated with survival, whereas education, country of origin and hospital level did not have any impact on survival. Conclusions Surgery within the first two weeks after EC diagnosis was associated with worsened survival. A prolonged wait time did not seem to have any significant adverse effect on prognosis.
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