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Table of Contents
CASE REPORT
Year : 2019  |  Volume : 6  |  Issue : 1  |  Page : 50-54

Hyperprogressive disease after nivolumab in a patient with microsatellite instability-high ampullary cancer


1 Division of Hematology and Oncology, Department of Internal Medicine, Taipei City Hospital, Renai Branch, Taipei, Taiwan
2 Department of Oncology; Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Date of Submission29-Jul-2018
Date of Decision18-Sep-2018
Date of Acceptance25-Sep-2018
Date of Web Publication1-Mar-2019

Correspondence Address:
Dr. Shih-Hung Yang
Department of Oncology, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei 10002
Taiwan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JCRP.JCRP_9_18

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  Abstract 


Ampullary cancer is a rare type of cancer with a limited choice of systemic therapy. Anti-programmed death-1 monoclonal antibodies have shown promising clinical benefits in multiple types of cancer, especially in tumors with microsatellite instability-high (MSI-H)/defective DNA mismatch repair and high tumor mutation burden. We report a case of a 61-year-old woman with MSI-H ampullary cancer who initially had slow progression without chemotherapy after recurrence. She experienced hyperprogressive disease with a dramatic deterioration of liver metastases following a short duration of nivolumab treatment.

Keywords: Ampullary cancer, hyperprogressive disease, microsatellite instability, nivolumab


How to cite this article:
Lai YH, Yang SH. Hyperprogressive disease after nivolumab in a patient with microsatellite instability-high ampullary cancer. J Cancer Res Pract 2019;6:50-4

How to cite this URL:
Lai YH, Yang SH. Hyperprogressive disease after nivolumab in a patient with microsatellite instability-high ampullary cancer. J Cancer Res Pract [serial online] 2019 [cited 2019 Jul 16];6:50-4. Available from: http://www.ejcrp.org/text.asp?2019/6/1/50/253252




  Introduction Top


Ampullary cancer, a rare type of cancer and a heterogeneous entity is characterized by both intestinal and pancreatobiliary malignancies but an in-between prognosis.[1],[2] The prognosis of ampullary cancer is much better than pancreatic cancer, and more than 50% of patients present with resectable disease and a 5-year survival rate of more than 50%.[2],[3] However, adjuvant or neoadjuvant therapy plays a limited role in improving overall survival (OS) in patients with resectable disease.[4],[5] In addition, the OS of patients with recurrent or advanced disease is poor, and the current choice of palliative chemotherapy is limited to gemcitabine-based chemotherapy.[6],[7]

Immune checkpoint inhibitors, such as monoclonal antibodies (mAbs) targeting cytotoxic T-lymphocyte-associated antigen-4 and programmed death-1 (PD-1) and its ligand (PD-L1) have become an important component of standard therapy for various types of cancer.[8] These novel agents induce durable disease control by restoring an effective antitumor T-cell response.[8] However, only a fraction of patients obtain clinical benefits from these agents.[8] The predictive biomarkers for a response to immune checkpoint inhibitors remain inconsistent among different types of cancer. There is accumulating evidence that the clinical benefits of these agents are greater in tumors bearing high mutational burden (TMB).[9],[10] In addition, the amounts of tumor-associated neoantigens and elicited anti-tumor T-cells have been reported to be higher in tumors with high TMB,[9],[10],[11],[12] such as various cancer types with microsatellite instability-high (MSI-H) or deficient DNA mismatch repair (dMMR).[10] This is reflected by the tissue/site agnostic indication of pembrolizumab, a humanized IgG4 mAb against PD-1, approved by the US Food and Drug Administration for advanced solid tumors with MSI-H or dMMR.[13] Promising responses have also been observed in some patients with MSI-H or dMMR ampullary cancer or cholangiocarcinoma.[13]

Not all patients respond to immune checkpoint inhibitors, even those with high TMB.[8],[13] In addition, distinct response patterns mimicking true progression, known as pseudoprogression and hyperprogressive disease (HPD), have been observed with these novel agents. Pseudoprogression is transient enlargement of tumors or the appearance of new lesions with a subsequent reduction in tumor burden, whereas HPD is true disease progression which exceeds the rate of tumor growth before treatment with immune checkpoint inhibitors.[14] How best to discriminate between these entities in daily clinical practice is challenging.

Nivolumab, a fully human IgG4 anti-PD-1 mAb, is approved for various cancer types,[8] including MSI-H or dMMR metastatic colorectal cancer.[15] Herein, we report a patient with MSI-H ampullary cancer who experienced HPD following nivolumab treatment.


  Case Report Top


A 61-year-old woman presented with intermittent epigastric pain for 3 months. She also had tea-colored urine and weight loss of 6 kg in 4 months. She was admitted to the National Taiwan University Hospital, where abdominal magnetic resonance imaging revealed a focal ill-defined high-signal change at the pancreatic head with main pancreatic duct dilatation and a hepatic nodule. Endoscopic retrograde cholangiopancreatography revealed an ulcerative mass at the papilla of Vater. The pathology report of a biopsy was adenocarcinoma. Whipple procedure and atypical hepatectomy were performed in August 2016, and the surgical pathology revealed a moderately differentiated adenocarcinoma arising from the ampulla of Vater with local invasion into the pancreas, common bile duct and duodenal wall, and distant metastasis to the liver. Postoperative chemotherapy with S-1 was administered from October 2016 to January 2017. However, local recurrence with peritoneal metastases was identified in abdominal computed tomography (CT) in April 2017. Neither lung nor liver metastasis was identified [Figure 1]a, [Figure 2]a, [Figure 2]b, [Figure 2]c. She chose palliative care due to malnutrition and chronic diarrhea unresponsive to pancreatic enzyme supplement. Malignant ascites had developed gradually since November 2017. A CT scan revealed the progression of the local recurrence with peritoneal metastases, ascites and a small liver metastasis [Figure 2]d, [Figure 2]e, [Figure 2]f. A tiny lung metastasis was also identified [Figure 1]b. She was in a chronic wasting status, and pain control, oral diuretic therapy, and intermittent paracentesis were given without palliative chemotherapy. A CT scan in April 2018 revealed stable lung metastasis [Figure 1]c and slow disease progression of liver and peritoneal metastases [Figure 2]g,[Figure 2]h, [Figure 2]i. She requested immunotherapy with nivolumab after discussion. Meanwhile, the genetic test (Promega MSI Analysis System) reported MSI-H at all of the mononucleotide and pentanucleotide repeat markers. Two doses of nivolumab (2.5 mg/kg) were administered in May and June 2018. Intra-abdominal infections occurred immediately after both doses of nivolumab, and she was treated with antibiotics. Nevertheless, a CT scan performed 3 weeks following the second dose of nivolumab revealed massive pleural effusion [Figure 1]d and rapid progression of the liver metastases [Figure 2]j, [Figure 2]k, [Figure 2]l. In addition, the level of carbohydrate antigen 19-9 (CA 19-9) was elevated from 449.3 U/mL to 1297.1 U/mL before and after nivolumab therapy, respectively. Her clinical condition rapidly deteriorated, and she died from Pseudomonas aeruginosa bacteremia 4 weeks after the second dose of nivolumab therapy.
Figure 1: Computed tomography showing (a) no lung metastasis 12 months before nivolumab treatment; (b) a small lung metastasis (arrow) 6 months before nivolumab treatment; (c) a stable lung metastasis (arrow) before nivolumab treatment; (d) massive pleural effusion 3 weeks following the second dose of nivolumab

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Figure 2: Computed tomography showing (a-c) intrahepatic duct dilatation without liver metastases 12 months before nivolumab treatment; (d-f) a small liver metastasis at the liver hilum (2.42 cm in diameter) 6 months before nivolumab treatment; (g-i) a larger liver tumor at the liver hilum (3.22 cm in diameter) with a few small new liver metastases before nivolumab treatment; (j-l) an even larger liver tumor at the liver hilum (4.96 cm in diameter) and dramatic progression in liver metastases 3 weeks following the second dose of nivolumab

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  Discussion Top


In recent years, immune checkpoint inhibitors have become widely available, and physicians face great challenges in adequately managing the adverse events and evaluating the tumor response of these novel agents. How best to select patients who may potentially benefit from these agents is also challenging among different types of cancer and investigations are still ongoing. For example, the evaluation of PD-L1 expression with an immunohistochemistry (IHC) assay before the application of pembrolizumab in non-small cell lung cancer has become a widely accepted standard.[16]

The expression of PD-L1 has also been evaluated in ampullary cancer and extrahepatic cholangiocarcinoma.[17],[18] With a cutoff point of 5% neoplastic cells as positive staining, 7 of 26 (26.9%) patients with ampullary cancer had PD-L1 expression.[17] Two of the four patients with dMMR had a strong PD-L1 staining of the neoplastic epithelium.[17] The rate of PD-L1 expression was lower (8/69, 11.6%) in another study of extrahepatic cholangiocarcinoma evaluated with a semi-quantitative score incorporating both percentage and intensity of staining.[18] Although PD-L1 expression was of no prognostic significance, the combination of PD-L1 expression in tumor cells and low intratumoral infiltration of CD3+ T cells was associated with a poor prognosis.[18] In the biliary cohort of the KEYNOTE-028 study, 37 of 89 (42%) patients with biliary tract cancer had PD-L1-positive tumors.[19] However, ampullary cancer was excluded from this study.[19] Different methods of staining and interpretation and the various locations of tumors may partially explain the wide variation in PD-L1 expression.[17],[18],[19]

Only a small fraction of biliary tract cancer is responsive to anti-PD-1 mAb. In the KEYNOTE-028 study, the response rate and disease control rate of pembrolizumab were 17% and 34%, respectively.[19] Although the expression of PD-L1 was not evaluated in our patient, a prior study demonstrated strong PD-L1 staining in 2 of 4 patients with dMMR ampullary cancer.[17] Moreover, Le et al. reported that 2 of 4 patients with dMMR ampullary cancer had disease control under pembrolizumab therapy.[13] In contrast, an enormous increase in metastases within the liver and a concomitant increase in CA 19-9 after a short duration of nivolumab treatment was observed in our patient. Pseudoprogression, a rare clinical entity, was not considered in our patient. A patient's general condition usually improves after this phenomenon.[14] However, in contrast to the slowly deteriorating condition of our patient without treatment for 1 year after recurrence, her condition rapidly worsened after nivolumab treatment.

Immune checkpoint inhibitors may be deleterious through accelerating the disease in a subset of patients. However, the prevalence, mechanisms, and predictive factors for HPD remain unclear. In a study of 218 patients treated with anti-PD-1 or anti-PD-L1 mAb, 9% (12/131) of the patients had HPD and were associated with older age.[20] Genomic markers associated with HPD have also been evaluated.[21] Among 155 patients with multiple types of cancer treated with various types of immunotherapy, 4 of 6 patients with murine double minute 2 (MDM2) family amplification experienced HPD.[21] Notably, the IHC expression of MDM2 was identified in 35 of 47 (75%) patients with ampullary cancer.[22] Although the prevalence of MDM2 amplification is unknown in ampullary cancer, 2 of the 4 patients with MSI-H intrahepatic cholangiocarcinoma had a positive IHC expression for MDM2.[23] However, the mechanism underlying MDM2 and HPD remains elucidated. The IHC expression and amplification of MDM2 were not evaluated in our patient.

The natural course of disease progression in ampullary cancer following the failure of any anti-cancer treatment, namely nivolumab in our patient, cannot be totally excluded. The use of nivolumab in this fragile patient with cancer cachexia and compromised immune system may potentially have obscured the benefits. Furthermore, the intra-abdominal infection that occurred following the nivolumab therapy may also have played a role in promoting tumor progression and metastases in our patient. In addition, a recent study demonstrated that the interaction between inflamed neutrophils and tumor cells promoted the spread of tumor cells.[24]

There is currently no global consensus on the definition of HPD. One retrospective study used tumor growth rate (TGR) to estimate the increase in tumor volume over time, and HPD was defined as at least a 2-fold increase in the TGR.[20] In our patient, the prenivolumab TGR from December 2017 to April 2018 [Figure 2]f and [Figure 2]i was 9.7%, while the postnivolumab TGR from April to June 2018 [Figure 2]i and [Figure 2]l was 32.5%. Therefore, our patient had HPD by definition with a 3.6-fold increase in the TGR. Another study defined HPD as time-to-treatment failure (TTF) of shorter than 2 months with >50% increase in tumor load and more than a 2-fold increase in progression pace according to immune-related response criteria.[21],[25] Our patient also met these criteria, with a TTF of 2 months and >5-fold increase in tumor load and progression pace.


  Conclusion Top


The definition and underlying mechanism of HPD remains to be elucidated. It is important to identify any clinical symptoms and signs of HPD as early as possible. Tumors with MSI-H or dMMR do not guarantee a response to immune checkpoint inhibitors. The predictive factors of HPD should be identified in this era of cancer immunotherapy to preclude patients who may be harmed by immune checkpoint inhibitor treatment.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

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McGranahan N, Furness AJ, Rosenthal R, Ramskov S, Lyngaa R, Saini SK, et al. Clonal neoantigens elicit T cell immunoreactivity and sensitivity to immune checkpoint blockade. Science 2016;351:1463-9.  Back to cited text no. 11
    
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Wang Q, Gao J, Wu X. Pseudoprogression and hyperprogression after checkpoint blockade. Int Immunopharmacol 2018;58:125-35.  Back to cited text no. 14
    
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Overman MJ, McDermott R, Leach JL, Lonardi S, Lenz HJ, Morse MA, et al. Nivolumab in patients with metastatic DNA mismatch repair-deficient or microsatellite instability-high colorectal cancer (CheckMate 142): An open-label, multicentre, phase 2 study. Lancet Oncol 2017;18:1182-91.  Back to cited text no. 15
    
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Bang YJ, Doi T, de Braud F, Piha-Paul S, Hollebecque A, Abdul Razak AR,et al. Safety and efficacy of pembrolizumab (MK-3475) in patients (pts) with advanced biliary tract cancer: Interim results of KEYNOTE-028. Eur J Cancer 2015;51 Suppl 3:S112.   Back to cited text no. 19
    
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Champiat S, Dercle L, Ammari S, Massard C, Hollebecque A, Postel-Vinay S, et al. Hyperprogressive disease is a new pattern of progression in cancer patients treated by anti-PD-1/PD-L1. Clin Cancer Res 2017;23:1920-8.  Back to cited text no. 20
    
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Wolchok JD, Hoos A, O'Day S, Weber JS, Hamid O, Lebbé C, et al. Guidelines for the evaluation of immune therapy activity in solid tumors: Immune-related response criteria. Clin Cancer Res 2009;15:7412-20.  Back to cited text no. 25
    


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