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Pancreatic Neoplasms: HELP
Articles by Boen L. R. Kam
Based on 9 articles published since 2010
(Why 9 articles?)
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Between 2010 and 2020, B. L. R. Kam wrote the following 9 articles about Pancreatic Neoplasms.
 
+ Citations + Abstracts
1 Review Treatment of gastroenteropancreatic neuroendocrine tumors with peptide receptor radionuclide therapy. 2013

van Vliet, Esther I / Teunissen, Jaap J M / Kam, Boen L R / de Jong, Marion / Krenning, Eric P / Kwekkeboom, Dik J. ·Department of Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. e.i.vanvliet@erasmusmc.nl ·Neuroendocrinology · Pubmed #22237390.

ABSTRACT: The primary treatment of gastroenteropancreatic neuroendocrine tumors (GEPNETs) is surgery with curative intent or debulking of the tumor mass. In case of metastatic disease, cytoreductive options are limited. A relatively new therapeutic modality, peptide receptor radionuclide therapy (PRRT) with radiolabeled somatostatin analogs, is currently available in a number of mostly European centers. Complete and partial responses obtained after treatment with [90Y-DOTA0,Tyr3]octreotide are in the same range as after treatment with [177Lu-DOTA0,Tyr3]octreotate (i.e. 10-30%). However, significant nephrotoxicity has been observed after treatment with [90Y-DOTA0,Tyr3]octreotide. Options to improve PRRT may include combinations of radioactive labeled somatostatin analogs, intra-arterial administration, and the use of radiosensitizing drugs combined with PRRT. Other therapeutic applications of PRRT may include additional therapy cycles in patients with progressive disease after benefit from initial therapy, PRRT in adjuvant or neoadjuvant setting, or PRRT combined with new targeted therapies, such as sunitinib or everolimus. Randomized clinical trials comparing PRRT with other treatment modalities, or comparing various radioactive labeled somatostatin analogs should be undertaken to determine the best treatment options and treatment sequelae for patients with GEPNETs.

2 Article Symptomatic and Radiological Response to 177Lu-DOTATATE for the Treatment of Functioning Pancreatic Neuroendocrine Tumors. 2019

Zandee, Wouter T / Brabander, Tessa / Blažević, Anela / Kam, Boen L R / Teunissen, Jaap J M / Feelders, Richard A / Hofland, Johannes / de Herder, Wouter W. ·Department of Internal Medicine, Sector of Endocrinology, Erasmus Medical Center and Erasmus MC Cancer Institute, Rotterdam, Netherlands. · Department of Radiology & Nuclear Medicine, Erasmus Medical Center and Erasmus MC Cancer Institute, Rotterdam, Netherlands. ·J Clin Endocrinol Metab · Pubmed #30566620.

ABSTRACT: PURPOSE: Peptide receptor radionuclide therapy (PRRT) with the radiolabeled somatostatin analogue [Lutetium-177-DOTA0-Tyr3]octreotate (177Lu-DOTATATE) is widely applied for inoperable metastatic small intestinal and nonfunctioning pancreatic neuroendocrine tumors (pNETs). The aim of this study is to describe the safety and efficacy of the treatment of functioning pNETs. METHODS: Patients were treated with up to four cycles of 177Lu-DOTATATE with an intended dose of 7.4 Gbq per cycle. Radiological (Response Evaluation Criteria in Solid Tumors 1.1), symptomatic, and biochemical response were analyzed retrospectively for all patients with a functioning pNET (insulinoma, gastrinoma, VIPoma, and glucagonoma) treated with 177Lu-DOTATATE. Quality of life (QOL) was assessed with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core Module questionnaire. RESULTS: Thirty-four patients with a metastatic functioning pNET (European Neuroendocrine Tumor Society grade 1 or 2) were included: 14 insulinomas, 5 VIPomas, 7 gastrinomas, and 8 glucagonomas. Subacute hematological toxicity, grade 3 or 4 occurred in 4 patients (12%) and a hormonal crisis in 3 patients (9%). PRRT resulted in partial or complete response in 59% of patients and the disease control rate was 78% in patients with baseline progression. 71% of patients with uncontrolled symptoms had a reduction of symptoms and a more than 80% decrease of circulating hormone levels was measured during follow-up. After PRRT, median progression-free survival was 18.1 months (interquartile range: 3.3 to 35.7) with a concurrent increase in QOL. CONCLUSION: Treatment with 177Lu-DOTATATE is a safe and effective therapy resulting in radiological, symptomatic and biochemical response in a high percentage of patients with metastatic functioning pNETs. Hormonal crises occur relatively frequent and preventive therapy should be considered before and/or during PRRT.

3 Article Salvage peptide receptor radionuclide therapy with [ 2019

van der Zwan, W A / Brabander, T / Kam, B L R / Teunissen, J J M / Feelders, R A / Hofland, J / Krenning, E P / de Herder, W W. ·Department of Radiology & Nuclear Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands. w.vanderzwan@erasmusmc.nl. · Department of Radiology & Nuclear Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands. · Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands. · Cyclotron Rotterdam BV, Erasmus Medical Centre, Rotterdam, The Netherlands. ·Eur J Nucl Med Mol Imaging · Pubmed #30267116.

ABSTRACT: PURPOSE: Therapy with [ METHODS: Patients with progressive bronchial NET or GEP-NET were selected for re-(re)treatment if they had benefited from initial peptide receptor radionuclide therapy (I-PRRT) with a minimal progression-free survival (PFS) of 18 months. Patients received an additional cumulative dose of 14.8 GBq of [ RESULTS: The safety and efficacy analyses included 181 patients and 168 patients, respectively, with bronchial NET or GEP-NET. Overall median follow-up was 88.6 months (95% CI 79.0-98.2). Median cumulative doses were 44.7 GBq (range 26.3-46.4 GBq) during R-PRRT (168 patients) and 59.7 GBq (range 55.2-≤60.5 GBq) during RR-PRRT (13 patients). Objective response and stable disease, as best response, were observed in 26 patients (15.5%) and 100 patients (59.5%) following R-PRRT, and in 5 patients (38.5%) and 7 patients (53.8%) following RR-PRRT, respectively. Median PFS was 14.6 months (95% CI 12.4-16.9) following R-PRRT and 14.2 months (95% CI 9.8-18.5) following RR-PRRT. Combined overall survival (OS) after I-PRRT plus R-PRRT and RR-PRRT was 80.8 months (95% CI 66.0-95.6). Grade III/IV bone marrow toxicity occurred in 6.6% and 7.7% of patients after R-PRRT and RR-PRRT, respectively. Salvage therapy resulted in a significantly longer OS in patients with bronchial NET, GEP-NET and midgut NET than in a nonrandomized control group. The total incidence of acute myeloid leukaemia (AML) and myelodysplastic syndrome (MDS) was 2.2%. No PRRT-related grade III/IV nephrotoxicity was observed. CONCLUSION: A cumulative dose of up to 60.5 GBq salvage PRRT with [

4 Article Long-Term Efficacy, Survival, and Safety of [ 2017

Brabander, Tessa / van der Zwan, Wouter A / Teunissen, Jaap J M / Kam, Boen L R / Feelders, Richard A / de Herder, Wouter W / van Eijck, Casper H J / Franssen, Gaston J H / Krenning, Eric P / Kwekkeboom, Dik J. ·Department of Radiology & Nuclear Medicine, Erasmus Medical Center, Rotterdam, the Netherlands. t.brabander@erasmusmc.nl. · Department of Radiology & Nuclear Medicine, Erasmus Medical Center, Rotterdam, the Netherlands. · Department of Internal Medicine, Erasmus Medical Center, ENETS Center of Excellence, Rotterdam, the Netherlands. · Department of Surgery, Erasmus Medical Center, Rotterdam, the Netherlands. ·Clin Cancer Res · Pubmed #28428192.

ABSTRACT:

5 Article Neoadjuvant Treatment of Nonfunctioning Pancreatic Neuroendocrine Tumors with [177Lu-DOTA0,Tyr3]Octreotate. 2015

van Vliet, Esther I / van Eijck, Casper H / de Krijger, Ronald R / Nieveen van Dijkum, Elisabeth J / Teunissen, Jaap J / Kam, Boen L / de Herder, Wouter W / Feelders, Richard A / Bonsing, Bert A / Brabander, Tessa / Krenning, Eric P / Kwekkeboom, Dik J. ·Department of Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands esthervanvliet@yahoo.com. · Department of Surgery, Erasmus Michoacande Ocampo, University Medical Center, Rotterdam, The Netherlands. · Department of Pathology, Erasmus Michoacande Ocampo, University Medical Center, Rotterdam, The Netherlands. · Department of Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. · Department of Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. · Department of Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands; and. · Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands. ·J Nucl Med · Pubmed #26272813.

ABSTRACT: METHODS: We studied 29 Dutch patients with a pathology-proven nonfunctioning pancreatic NET treated with (177)Lu-octreotate. All patients had a borderline or unresectable pancreatic tumor (group 1) or oligometastatic disease (defined as ≤3 liver metastases) (group 2). Progression-free survival (PFS) was analyzed using the Kaplan-Meier method and Cox proportional hazards modeling. RESULTS: After the treatment with (177)Lu-octreotate, successful surgery was performed in 9 of 29 patients (31%). Six patients had a Whipple procedure, 2 patients had a pylorus-preserving pancreaticoduodenectomy, and 1 patient had a distal pancreatectomy and splenectomy. The median PFS was 69 mo for patients with successful surgery and 49 mo for the other patients. For comparison, the median PFS in 90 other patients with a nonfunctioning pancreatic NET with more than 3 liver metastases or other metastases was 25 mo. CONCLUSION: Neoadjuvant treatment with (177)Lu-octreotate is a valuable option for patients with initially unresectable pancreatic NETs.

6 Article [(111)In-DTPA]octreotide tumor uptake in GEPNET liver metastases after intra-arterial administration: an overview of preclinical and clinical observations and implications for tumor radiation dose after peptide radionuclide therapy. 2014

Pool, Stefan E / Kam, Boen L R / Koning, Gerben A / Konijnenberg, Mark / Ten Hagen, Timo L M / Breeman, Woulter A P / Krenning, Eric P / de Jong, Marion / van Eijck, Casper H J. ·1 Department of Nuclear Medicine, Erasmus MC , Rotterdam, The Netherlands . ·Cancer Biother Radiopharm · Pubmed #24820805.

ABSTRACT: AIMS: With the aim to improve peptide receptor radionuclide therapy effects in patients with gastroenteropancreatic neuroendocrine tumor (GEPNET) liver metastases we explored the effect of intra-arterial (IA) administration of [(111)In-DTPA]octreotide ((111)In-DTPAOC) on tumor uptake in an animal model and in a patient study. METHODS: Preclinical study: After administering (111)In-DTPAOC intra-venously (IV) or IA, biodistribution studies were performed in rats with a hepatic somatostatin receptor subtype 2 (sst2)-positive tumor. Clinical study: 3 patients with neuroendocrine liver metastases were injected twice with (111)In-DTPAOC. The first injection was given IV, and 2 weeks later, the second was injected IA (hepatic artery). Planar images of the abdomen were made up to 72 hours after injection. Blood samples were taken and urine was collected. Pharmacokinetic modeling was performed on the IV and IA data of the same patient. Based on this model, additional (177)Lu dosimetry calculations for IV and IA administrations were performed. RESULTS: The preclinical study showed a two-fold higher (111)In-DTPAOC tumor uptake after IA administration than after IV injection. Patient data showed a large variability in radioactivity increment in liver metastases after IA administration compared with IV administration. Renal radioactivity was not significantly lower after IA administration; (177)Lu dosimetry simulations in 1 patient using a maximum kidney radiation dose of 23 Gy showed IA administration resulted in a mean increase in tumor radiation dose of 2.9-fold. CONCLUSION: Preclinical and clinical data both indicate that IA administration of radiolabeled somatostatin analogs via the hepatic artery can significantly increase radionuclide uptake in GEPNET, sst2-positive, liver metastases up to 72 hours postinjection, although the effect of IA administration can differ between patients.

7 Article Comparison of response evaluation in patients with gastroenteropancreatic and thoracic neuroendocrine tumors after treatment with [177Lu-DOTA0,Tyr3]octreotate. 2013

van Vliet, Esther I / Krenning, Eric P / Teunissen, Jaap J / Bergsma, Hendrik / Kam, Boen L / Kwekkeboom, Dik J. ·Department of Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. ·J Nucl Med · Pubmed #24084705.

ABSTRACT: METHODS: Two-hundred sixty-eight Dutch patients with NETs who had been treated with (177)Lu-octreotate between January 2000 and April 2007 were studied. CT or MR imaging scans were analyzed using RECIST, SWOG criteria, mRECIST, and mSWOG criteria (including the tumor response class minor response [decrease of 13%-30% for mRECIST and 25%-50% for mSWOG]). The outcomes were correlated with progression-free survival (PFS) and overall survival (OS). RESULTS: Eleven patients had an unknown tumor response and were excluded. The rates of objective response (OR) (complete response + partial response [+minor response for mRECIST/mSWOG]), stable disease, and progressive disease (PD) were 28%, 49%, and 24%, respectively, according to RECIST; 25%, 49%, and 26%, respectively, according to SWOG; 44%, 33%, and 24%, respectively, according to mRECIST; and 45%, 29%, and 26%, respectively, according to mSWOG. In patients who had OR, stable disease, or PD, the median PFS was 26-30, 27-34, and 8 mo, respectively, with any of the 4 response criteria. In patients who had OR, stable disease, or PD, the median OS was 55-57, 56-74, and 11-12 mo, respectively, with any of the 4 response criteria. Subanalyses for patients who had progression before treatment start were comparable. CONCLUSION: Patients with PD as treatment outcome had significantly shorter PFS and OS than patients with an OR or stable disease with all 4 scoring systems. PFS and OS were comparable for patients with tumor regression and stable disease. The addition of the response class minor response did not improve the correlation with PFS and OS. The 4 scoring systems gave comparable results in terms of PFS and OS per categorized outcome.

8 Article Tumor response assessment to treatment with [177Lu-DOTA0,Tyr3]octreotate in patients with gastroenteropancreatic and bronchial neuroendocrine tumors: differential response of bone versus soft-tissue lesions. 2012

van Vliet, Esther I / Hermans, John J / de Ridder, Maria A / Teunissen, Jaap J / Kam, Boen L / de Krijger, Ronald R / Krenning, Eric P / Kwekkeboom, Dik J. ·Department of Nuclear Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. e.i.vanvliet@erasmusmc.nl ·J Nucl Med · Pubmed #22782312.

ABSTRACT: METHODS: Forty-two patients with well-differentiated NETs who had bone metastases that were positive on [(111)In-DTPA(0)]octreotide somatostatin receptor scintigraphy (SRS) before treatment, and who had soft-tissue lesions, were studied. All patients had had a minimum of 1 follow-up CT scan. Lesions were scored on CT and bone lesions also on SRS before and after treatment. Tumor markers (chromogranin A and 5-hydroxyindoleacetic acid) before and after treatment were compared. RESULTS: Because bone lesions were not visible on CT before treatment in 11 of 42 patients (26%), bone and soft-tissue lesions were evaluated in 31 patients. Whereas bone lesions increased in size, soft-tissue lesions decreased in size. The percentage change in bone and soft-tissue lesions was significantly different at all time points up to 12 mo of follow-up (P < 0.001). The intensity or number of bone lesions on SRS decreased after treatment in 19 of 23 patients (83%) in whom SRS after treatment was available. The tumor markers also decreased significantly after treatment. In 1 patient, bone lesions became visible on CT after treatment, mimicking progressive disease with "new" bone lesions, although there was an overall treatment response. CONCLUSION: In patients with NETs, the apparent increase in size of bone lesions or the appearance of new bone lesions on CT after treatment with (177)Lu-octreotate should be interpreted cautiously, as this finding may be therapy-related rather than indicative of tumor progression.

9 Article Quality of life in 265 patients with gastroenteropancreatic or bronchial neuroendocrine tumors treated with [177Lu-DOTA0,Tyr3]octreotate. 2011

Khan, Saima / Krenning, Eric P / van Essen, Martijn / Kam, Boen L / Teunissen, Jaap J / Kwekkeboom, Dik J. ·Department of Nuclear Medicine, Erasmus Medical Center, Rotterdam, The Netherlands. s.khan@erasmusmc.nl ·J Nucl Med · Pubmed #21795361.

ABSTRACT: METHODS: Two hundred sixty-five Dutch patients completed the QOL questionnaire of the European Organization for the Research and Treatment of Cancer after being treated for NETs. ANOVA was used for statistical analyses, with a P value of 0.05 or less being considered significant. Differences of at least 10 points in global health status (GHS)/QOL scores, symptom scores, and Karnofsky performance scores (KPS) before and after therapy were regarded as indicating an improvement. RESULTS: Regardless of the treatment outcome, GHS/QOL, insomnia, appetite loss, and diarrhea improved significantly in the total group. These improvements were also seen in patients with bone metastases or a decrease of 50% or more in chromogranin A. Improvement in the scores by at least 10 points was also analyzed in a subgroup of patients with decreased GHS/QOL or symptoms at the start of therapy: in 36% of these patients, GHS/QOL improved after therapy; in 49%, fatigue; in 70%, nausea plus vomiting; in 53%, pain; in 44%, dyspnea; in 59%, insomnia; in 63%, appetite loss; in 60%, constipation; and in 67%, diarrhea. Additionally, we did not see a statistically significant deterioration in patients who had GHS/QOL 100, KPS 100, or no symptoms at the start. In patients with initial stable disease or remission after treatment, GHS/QOL and KPS decreased significantly when regrowth of the tumors occurred. CONCLUSION: GHS/QOL, KPS, and symptoms improved significantly after (177)Lu-octreotate therapy, and there was no significant decrease in QOL in patients who had no symptoms before therapy. In patients who had suboptimal scores for GHS/QOL or symptoms before therapy, a clinically significant improvement was demonstrated. Our results indicate that (177)Lu-octreotate therapy not only reduces tumors and prolongs overall survival but also improves the patients' self-assessed QOL.