Cancer Research and Treatment

Original Articles

Head and Neck cancer

Analysis of Response and Progression Patterns of Tyrosine Kinase Inhibitors in Recurrent or Metastatic Adenoid Cystic Carcinoma: A Post Hoc Analysis of Two KCSG Phase II Trials: Youjin Kim, Bhumsuk Keam, Eun Joo Kang, Jin-Soo Kim, Hye Ryun Kim, Keun-Wook Lee, Jung Hye Kwon, Kyoung Eun Lee, Yaewon Yang, Yoon Hee Choi, Min Kyoung Kim, Jun Ho Ji, Tak Yun, Moon Young Choi, Ki Hyeong Lee, Sung-Bae Kim, Myung-Ju Ahn; Cancer Res Treat. 2024;56(4):1068-1076. Published online April 15, 2024; DOI: https://doi.org/10.4143/crt.2024.008

Abstract PDF Supplementary Material PubReader ePub: Purpose
In this study, we evaluated 66 patients diagnosed with adenoid cystic carcinoma (ACC) enrolled in two Korean Cancer Study Group trials to investigate the response and progression patterns in recurrent and/or metastatic ACC treated with vascular endothelial growth factor receptor tyrosine kinase inhibitors (VEGFR-TKIs).
Materials and Methods
We evaluated 66 patients diagnosed with ACC who were enrolled in the Korean Cancer Study Group trials. The tumor measurements, clinical data, treatment outcomes, and progression patterns of therapy were analyzed.
Results
In the 66 patients (53 receiving axitinib and 13 receiving nintedanib), the disease control rate was 61%, and three patients achieved partial response. The median follow-up, median progression-free survival (PFS), overall survival, and 6-month PFS rate were 27.6%, 12.4%, and 18.1% months and 62.1%, respectively. Among 42 patients who experienced progression, 27 (64.3%) showed target lesion progression. Bone metastasis was an independent poor prognostic factor.
Conclusion
Overall, most patients demonstrated stable disease with prolonged PFS; however, prominent target lesion progression occurred in some patients. Thus, PFS may capture VEGFR-TKI efficacy better than the objective response rate.

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Breast cancer

Impacts of Subtype on Clinical Feature and Outcome of Male Breast Cancer: Multicenter Study in Korea (KCSG BR16-09): Jieun Lee, Keun Seok Lee, Sung Hoon Sim, Heejung Chae, Joohyuk Sohn, Gun Min Kim, Kyung-Hee Lee, Su Hwan Kang, Kyung Hae Jung, Jae-ho Jeong, Jae Ho Byun, Su-Jin Koh, Kyoung Eun Lee, Seungtaek Lim, Hee Jun Kim, Hye Sung Won, Hyung Soon Park, Guk Jin Lee, Soojung Hong, Sun Kyung Baek, Soon Il Lee, Moon Young Choi, In Sook Woo; Cancer Res Treat. 2023;55(1):123-135. Published online March 24, 2022; DOI: https://doi.org/10.4143/crt.2021.1561

Abstract PDF Supplementary Material PubReader ePub

Purpose
The treatment of male breast cancer (MBC) has been extrapolated from female breast cancer (FBC) because of its rarity despite their different clinicopathologic characteristics. We aimed to investigate the distribution of intrinsic subtypes based on immunohistochemistry, their clinical impact, and treatment pattern in clinical practice through a multicenter study in Korea.
Materials and Methods
We retrospectively analyzed clinical data of 248 MBC patients from 18 institutions across the country from January 1995 to July 2016.
Results
The median age of MBC patients was 63 years (range, 25 to 102 years). Among 148 intrinsic subtype classified patients, 61 (41.2%), 44 (29.7%), 29 (19.5%), and 14 (9.5%) were luminal A, luminal B, human epidermal growth factor receptor 2, and triple-negative breast cancer, respectively. Luminal A subtype showed trends for superior survival compared to other subtypes. Most hormone receptor-positive patients (166 patients, 82.6%) received adjuvant endocrine treatment. Five-year completion of adjuvant endocrine treatment was associated with superior disease-free survival (DFS) in patients classified with an intrinsic subtype (hazard ratio [HR], 0.15; 95% confidence interval [CI], 0.04 to 0.49; p=0.002) and in all patients (HR, 0.16; 95% CI, 0.05 to 0.54; p=0.003).
Conclusion
Distribution of subtypes of MBC was similar to FBC and luminal type A was most common. Overall survival tended to be improved for luminal A subtype, although there was no statistical significance. Completion of adjuvant endocrine treatment was associated with prolonged DFS in intrinsic subtype classified patients. MBC patients tended to receive less treatment. MBC patients should receive standard treatment according to guidelines as FBC patients.

Citations

Citations to this article as recorded by

HER2 expression and pathway status in male breast cancer patients: results of an integrated analysis among 6,150 patients
Boqiang Lyu, Shidi Zhao, Hui Wang, Shouping Gong, Biyuan Wang
Scientific Reports.2025;[Epub] CrossRef
Male breast cancer - a single center experience
Igor Djurisic, Milan Zegarac, Milan Kocic, Vladimir Jokic, Nikola Vucic, Ognjen Petrovic, Nada Santrac, Jovana Koncar, Andjela Ivezic, Srdjan Nikolic
Srpski arhiv za celokupno lekarstvo.2025; 153(1-2): 53. CrossRef
Clinicopathologic Features and Prognoses of Male Patients With Breast Cancer
Meiling Huang, Jingjing Xiao, Changjiao Yan, Rui Ling, Ting Wang
American Journal of Men's Health.2024;[Epub] CrossRef

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A Randomized, Open-Label, Phase II Study Comparing Pemetrexed Plus Cisplatin Followed by Maintenance Pemetrexed versus Pemetrexed Alone in Patients with Epidermal Growth Factor Receptor (EGFR)-Mutant Non-small Cell Lung Cancer after Failure of First-Line EGFR Tyrosine Kinase Inhibitor: KCSG-LU12-13: Kwai Han Yoo, Su Jin Lee, Jinhyun Cho, Ki Hyeong Lee, Keon Uk Park, Ki Hwan Kim, Eun Kyung Cho, Yoon Hee Choi, Hye Ryun Kim, Hoon-Gu Kim, Heui June Ahn, Ha Yeon Lee, Hwan Jung Yun, Jin-Hyoung Kang, Jaeheon Jeong, Moon Young Choi, Sin-Ho Jung, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Keunchil Park, Myung-Ju Ahn; Cancer Res Treat. 2019;51(2):718-726. Published online September 3, 2018; DOI: https://doi.org/10.4143/crt.2018.324

Abstract PDF PubReader ePub

Purpose
The optimal cytotoxic regimens have not been established for patients with non-small cell lung cancer (NSCLC) who develop disease progression on first-line epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI).
Materials and Methods
We conducted a multi-center randomized phase II trial to compare the clinical outcomes between pemetrexed plus cisplatin combination therapy followed by maintenance pemetrexed (PC) and pemetrexed monotherapy (P) after failure of first-line EGFR-TKI. The primary objective was progression-free survival (PFS), and secondary objectives included overall response rate (ORR), overall survival (OS), health-related quality of life (HRQOL), and safety and toxicity profiles.
Results
A total of 96 patientswere randomized, and 91 patientswere treated at 14 centers in Korea. The ORR was 34.8% (16/46) for the PC arm and 17.8% (8/45) for the P arm (p=0.066). With 23.4 months of follow-up, the median PFS was 5.4 months in the PC arm and 6.4 months in the P arm (p=0.114). The median OS was 17.9 months and 15.7 months in PC and P arms, respectively (p=0.787). Adverse events ≥ grade 3 were reported in 12 patients (26.1%) in the PC arm and nine patients (20.0%) in the P arm (p=0.491). The overall time trends of HRQOL were not significantly different between the two arms.
Conclusion
The outcomes of pemetrexed therapy in NSCLC patients with disease progression after firstline EGFR-TKI might not be improved by adding cisplatin.

Citations

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The Survival and Financial Benefit of Investigator-Initiated Trials Conducted by Korean Cancer Study Group
Bum Jun Kim, Chi Hoon Maeng, Bhumsuk Keam, Young-Hyuck Im, Jungsil Ro, Kyung Hae Jung, Seock-Ah Im, Tae Won Kim, Jae Lyun Lee, Dae Seog Heo, Sang-We Kim, Keunchil Park, Myung-Ju Ahn, Byoung Chul Cho, Hoon-Kyo Kim, Yoon-Koo Kang, Jae Yong Cho, Hwan Jung Yu
Cancer Research and Treatment.2025; 57(1): 39. CrossRef
A randomised non-comparative phase II study of atezolizumab, bevacizumab and chemotherapy in EGFR-mutant NSCLC with acquired resistance – The ETOP 15-19 ABC-lung trial
R.A. Soo, K. Vervita, M. Früh, B.C. Cho, M. Majem, D. Rodriguez Abreu, K. Ribi, A. Callejo, T. Moran, M. Domine Gomez, M. Provencio, A. Addeo, J.Y. Han, A.L. Ortega Granados, M. Reck, A. Blasco, R. Garcia Campelo, M.A. Sala González, C. Britschgi, H. Rosc
Lung Cancer.2025; 202: 108454. CrossRef
Osimertinib with Chemotherapy in EGFR -Mutated NSCLC

New England Journal of Medicine.2024; 390(5): 478. CrossRef
Real-world outcomes on platinum-containing chemotherapy for EGFR-mutated advanced nonsquamous NSCLC with prior exposure to EGFR tyrosine kinase inhibitors
Balazs Halmos, Pragya Rai, Jae Min, Xiaohan Hu, Diana Chirovsky, Mark Shamoun, Bin Zhao
Frontiers in Oncology.2024;[Epub] CrossRef
Clinical efficacy and safety of pemetrexed with or without either Bevacizumab or Pembrolizumab in patients with metastatic nonsquamous non–small cell carcinoma
Wang Chun Kwok, Tan Fong Cheong, Ka Yan Chiang, James Chung Man Ho, David Chi Leung Lam, Mary Sau Man Ip, Terence Chi Chun Tam
Asia-Pacific Journal of Clinical Oncology.2023; 19(1): 87. CrossRef
Factors associated with outcomes of second-line treatment for EGFR-mutant non-small-cell lung cancer patients after progression on first- or second-generation EGFR-tyrosine kinase inhibitor treatment
Cheng-Yu Chang, Chung-Yu Chen, Shih-Chieh Chang, Ching-Yi Chen, Yi-Chun Lai, Chun-Fu Chang, Yu-Feng Wei
Frontiers in Oncology.2023;[Epub] CrossRef
Association of Quality-of-Life Outcomes in Cancer Drug Trials With Survival Outcomes and Drug Class
Joseph N. Samuel, Christopher M. Booth, Elizabeth Eisenhauer, Michael Brundage, Scott R. Berry, Bishal Gyawali
JAMA Oncology.2022; 8(6): 879. CrossRef
Drug resistance mechanisms and progress in the treatment of EGFR‑mutated lung adenocarcinoma (Review)
Ruizhu Sun, Zhansheng Hou, Yankui Zhang, Bo Jiang
Oncology Letters.2022;[Epub] CrossRef
Haematological toxicity of pemetrexed in patients with metastatic non-squamous non-small cell carcinoma of lung with third-space fluid
Wang Chun Kwok, Tan Fong Cheong, Ka Yan Chiang, James Chung Man Ho, David Chi Leung Lam, Mary Sau Man Ip, Terence Chi Chun Tam
Lung Cancer.2021; 152: 15. CrossRef
Exploring the role of epidermal growth factor receptor variant III in meningeal tumors
Rashmi Rana, Vaishnavi Rathi, Kirti Chauhan, Kriti Jain, Satnam Singh Chhabra, Rajesh Acharya, Samir Kumar Kalra, Anshul Gupta, Sunila Jain, Nirmal Kumar Ganguly, Dharmendra Kumar Yadav, Timir Tripathi
PLOS ONE.2021; 16(9): e0255133. CrossRef
Risk factors of nephrotoxicity of maintenance pemetrexed in patients with metastatic non-squamous non-small cell carcinoma of lung
Wang Chun Kwok, Ka Yan Chiang, James Chung Man Ho, David Chi Leung Lam, Mary Sau Man Ip, Terence Chi Chun Tam
Lung Cancer.2021; 162: 169. CrossRef
Impact of Value Frameworks on the Magnitude of Clinical Benefit: Evaluating a Decade of Randomized Trials for Systemic Therapy in Solid Malignancies
Ellen Cusano, Chelsea Wong, Eddy Taguedong, Marcus Vaska, Tasnima Abedin, Nancy Nixon, Safiya Karim, Patricia Tang, Daniel Y. C. Heng, Doreen Ezeife
Current Oncology.2021; 28(6): 4894. CrossRef
Real world experience on maintenance chemotherapy with gemcitabine in second line setting for advanced non-small cell lung carcinoma
Wang Chun Kwok, David Chi Leung Lam, Ka Yan Chiang, James Chung Man Ho, Mary Sau Man Ip, Terence Chi Chun Tam
Journal of Chemotherapy.2020; 32(8): 429. CrossRef

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Case Report

Cancer of Unknown Primary Finally Revealed to Be a Metastatic Prostate Cancer: A Case Report: Jung Yeon Cho, Eun Jin Shim, In Seon Kim, Eun Mi Nam, Moon Young Choi, Kyung Eun Lee, Yeung Chul Mun, Chu Myoung Seoung, Soon Nam Lee, Dong Eun Song, Woon Sup Han; Cancer Res Treat. 2009;41(1):45-49. Published online March 31, 2009; DOI: https://doi.org/10.4143/crt.2009.41.1.45

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The vast majority of patients with metastatic prostate cancer present with bone metastases and high prostate specific antigen (PSA) level. Rarely, prostate cancer can develop in patients with normal PSA level. Here, we report a patient who presented with a periureteral tumor of unknown primary site that was confirmed as prostate adenocarcinoma after three years with using specific immunohistochemical examination. A 64-year old man was admitted to our hospital with left flank pain associated with masses on the left pelvic cavity with left hydronephrosis. All tumor markers including CEA, CA19-9, and PSA were within the normal range. After an exploratory mass excision and left nephrectomy, the pelvic mass was diagnosed as poorly differentiated carcinoma without specific positive immunohistochemical markers. At that time, we treated him as having a cancer of unknown primary site. After approximately three years later, he revisited the hospital with a complaint of right shoulder pain. A right scapular mass was newly detected with a high serum PSA level (101.7 ng/ml). Tissues from the scapular mass and prostate revealed prostate cancer with positive immunoreactivity for P504S, a new prostate cancer-specific gene. The histological findings were the same as the previous pelvic mass; however, positive staining for PSA was observed only in the prostate mass. This case demonstrates a patient with prostate cancer and negative serological test and tissue staining that turned out to be positive during progression. We suggest the usefulness of newly developed immunohistochemical markers such as P504S to determine the specific primary site of metastatic poorly differentiated adenocarcinoma in men.

Citations

Citations to this article as recorded by

A Unique Case of Prostate Carcinoma Presenting as Retroperitoneal Lymphadenopathy With Normal Levels of Prostate-Specific Antigen and a Prostate of Normal Size: A Case Report
Swapnil Patil, Mayank Mundada, Pradnya M Diggikar, Raju Hansini Reddy, Sree Vidya Yekkaluru
Cureus.2024;[Epub] CrossRef
Prostate cancer metastasis to the distal phalanx of the left hallux: The first confirmed case and literature review
Xinbing Sui, Yan Hu, Cheng Zhang, Hongming Pan, Da Li
Oncology Letters.2016; 12(2): 1074. CrossRef
Metastasis of prostate carcinoma in the mandible manifesting as numb chin syndrome
Secil Aksoy, Kaan Orhan, Sebnem Kursun, Mehmet Eray Kolsuz, Berkan Celikten
World Journal of Surgical Oncology.2014;[Epub] CrossRef

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