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| ADVERSE DRUG FORUM |
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| Year : 2017 | Volume
: 63
| Issue : 1 | Page : 55-57 |
Imatinib-induced pleural effusion: A case report
R Banka, Z Udwadia
Department of Pulmonary Medicine, P. D. Hinduja National Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| Date of Submission | 29-Jul-2016 |
| Date of Decision | 24-Aug-2016 |
| Date of Acceptance | 04-Oct-2016 |
| Date of Web Publication | 16-Nov-2016 |
Correspondence Address:
R Banka
Department of Pulmonary Medicine, P. D. Hinduja National Hospital and Medical Research Centre, Mumbai, Maharashtra
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0022-3859.194227
Imatinib is a tyrosine kinase inhibitor and has rarely been reported to cause pleural effusion. We report the case of an 88-year-old male, known case of gastrointestinal stromal tumor on treatment with imatinib, who presented with a 2-week history of cough and dyspnea. He was diagnosed to have a right-sided pleural effusion and thoracentesis of the fluid revealed an exudate with low adenosine deaminase and negative cytology. Withdrawal of the drug lead to resolution of symptoms. We report this case to highlight the side effect profile of imatinib and warn physicians regarding this potential adverse effect which may be mistaken for metastasis or infection.
Keywords: Gastrointestinal stromal tumor, imatinib, pleural effusion, tyrosine kinase inhibitors
How to cite this article:
Banka R, Udwadia Z. Imatinib-induced pleural effusion: A case report. J Postgrad Med 2017;63:55-7 |
| :: Introduction | |  |
Imatinib mesylate is a small molecule inhibitor of multiple tyrosine kinases and selectively prevents phosphorylation of BCR-ABL and inhibits downstream signaling and growth of BCR-ABL-positive cells. It was first approved for the treatment of chronic myeloid leukemia (CML) in 2001 and for the treatment of gastrointestinal stromal tumor (GIST) in 2003. This revolutionized the treatment of CML with more than 90% patients remaining stable in the past 5 years. [1],[2]
Imatinib is associated with various adverse effects which include cardiovascular side effects such as edema, anasarca, pericardial, or pleural effusion and rarely cardiac failure. Fatigue is seen in 20%-75% patients. Other side effects include dizziness, headache, insomnia, and depression. Skin rash, pruritus, and dermatitis have also been reported. [3] Gastrointestinal side effects include nausea, vomiting, and diarrhea. Although pleural effusions have been reported with imatinib, it is a rare side effect. [4],[5] We present a case of imatinib-associated pleural effusion for its rarity and its potential to be overlooked by physicians.
| :: Case Report | | |
An 88-year-old man presented with a 2-week history of gradually progressive breathlessness and dry cough. There was no associated fever, loss of weight, or appetite. He denied any edema of the feet and orthopnea.
His history was remarkable for hypertension and coronary artery bypass grafting done 8 years ago. He was diagnosed with GIST 4 months ago when he presented with gastric discomfort and a computed tomography (CT) scan of the abdomen showed a 12 cm × 11 cm × 8.5 cm posterior mediastinal mass. A subsequent endoscopic ultrasound-guided biopsy showed tumor cells positive for C-Kit and DOG-1. He was commenced on tablet imatinib 400 mg/day for his GIST, but after 1 month of the treatment, he began to complain of breathlessness on exertion. He was a lifelong nonsmoker. There was no history of tuberculosis or tuberculosis contact.
On examination, he was mildly tachycardic with a pulse rate of 90/min. His blood pressure was normal and jugular venous pressure was not raised. He had no pallor, icterus, cyanosis, clubbing, lymphadenopathy, or pedal edema. His respiratory system examination revealed diminished breath sounds in the right infrascapular and infraaxillary area. His abdomen was soft on palpation and no organomegaly was felt.
His complete blood count, renal function tests, and liver function tests were all normal. His transthoracic two-dimensional echocardiogram showed normal left ventricular (LV) ejection fraction of 55%. A chest radiograph [Figure 1] showed a right pleural effusion and high-resolution CT chest [Figure 2] showed a large right-sided pleural effusion and unchanged posterior mediastinal mass with no consolidation or lymphadenopathy. | Figure 2: High-resolution computed tomography chest showing right-sided pleural effusion with no parenchymal abnormality
Click here to view |
He underwent a thoracentesis of the pleural fluid; 1100 ml was aspirated. Results of pleural fluid aspiration were: protein: 3.3 g/dl (total serum protein: 5.4 g/dl); lactate dehydrogenase (LDH): 223 IU/L (serum LDH: 280 IU/L); white blood cell count: 1040/mm 3 (50% lymphocytic); adenosine deaminase (ADA): 4.1 (normal: 0-40 U/L). His pleural fluid cytology showed lymphocyte predominance and no malignant cells. Pleural fluid aerobic and tuberculosis cultures and GeneXpert were all negative. He was diagnosed to have an exudative effusion with a low ADA. An oncologist's opinion was sought who ruled out metastasis as a cause of the effusion.
In the absence of other causes of pleural effusion, a diagnosis of imatinib-induced pleural effusion was made. Imatinib was withdrawn; the patient gradually improved and a repeat chest X-ray at 3 months poststoppage of drug showed complete resolution and no refilling of the fluid [Figure 3]. The patient declined any further treatment for his GIST and was not put on any other medication. He remains under regular chest radiograph and sonography follow-up over 1 year and has no recurrence of his effusion. | Figure 3: Chest X-ray 3 months after stopping imatinib showing resolution of effusion
Click here to view |
| :: Discussion | | |
Drug-related pleural disease is rare although many commonly used drugs are known to affect the pleura.
Imatinib-induced fluid retention is a common adverse effect and one of the important dose-limiting toxicities. Specifically, fluid retention manifests as edema in periorbital regions, lower extremities, and/or body in approximately 80% patients which is usually mild and manageable. Severe fluid retention resulting in generalized edema (anasarca), ascites, pleural, or pericardial effusions is rare and seen in around 2% of GIST patients and hence poorly studied. Two distinct types or courses of pleural effusion are seen: (1) acute/progressive fluid formation that occurs early after drug initiation or dose escalation and (2) intermittent/steady fluid formation with mild, occasional, or persistent fluid formation. [6],[7] Imatinib-induced pleural effusion appears to be dose dependent, with higher incidence in patients treated with 400 mg twice a day. [8],[9]
The mechanism of imatinib-induced pleural effusion is poorly understood. The suggested mechanism is probably related to kinase inhibition: imatinib potently inhibits platelet-derived growth factor receptor-b which is expressed in pericytes and is involved in the regulation of angiogenesis. [10] Imatinib can also induce cardiotoxicity which can range from asymptomatic LV dysfunction to congestive heart failure. Hence, it should be ruled out in any patient who presents with breathlessness on imatinib therapy. [11]
While pleural effusion due to imatinib therapy is rare, it is commonly seen in patients treated with dasatinib which is a potent oral second-line BCR/ABL tyrosine kinase inhibitor. In a review of 915 chronic phase, CML patients previously treated with imatinib or dasatinib or both, 30% of patients treated with dasatinib had a history of pleural or pericardial effusions, whereas only 2% of patients treated with imatinib developed effusions. [12]
Treatment of tyrosine kinases induced pleural effusion includes therapy interruption, drug dose reduction, steroids, and diuretics and only in a few severe instances, therapeutic thoracentesis. With adequate management and monitoring of patients with predisposing factors, the majority of them can continue therapy with the drug, even if this complication occurs. [10]
Thus, in conclusion, any new pleural effusion should not be mistakenly interpreted as a sign of metastases or worsening tumor, especially when the primary malignancy is stable. For best patient care in the era of molecular-targeted therapeutic agents, a multidisciplinary approach with close collaboration between oncologists and radiologists is essential to assess treatment response as well as toxicity of tyrosine kinase inhibitors.
Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
| :: References | | |
| 1. | Siddiqui MA, Scott LJ. Imatinib: A review of its use in the management of gastrointestinal stromal tumours. Drugs 2007;67:805-20.  |
| 2. | Fausel C. Targeted chronic myeloid leukemia therapy: Seeking a cure. Am J Health Syst Pharm 2007;64 24 Suppl 15:S9-15. |
| 3. | Paolino G, Didona D, Clerico R, Corsetti P, Ambrifi M, Bottoni U, et al. Skin lesions in patients treated with imatinib mesylate: A 5-year prospective study. Cutis 2016;97:E12-6. |
| 4. | Bongiovanni A, Ricci M, Riva N, Calpona S, Oboldi D, Pieri F, et al. Pleural effusion in a patient with metastatic gastrointestinal stromal tumor treated with imatinib: Case report. Future Oncol 2014;10:2423-7. |
| 5. | Ishii Y, Shoji N, Kimura Y, Ohyashiki K. Prominent pleural effusion possibly due to imatinib mesylate in adult Philadelphia chromosome-positive acute lymphoblastic leukemia. Intern Med 2006;45:339-40. |
| 6. | Verweij J, van Oosterom A, Blay JY, Judson I, Rodenhuis S, van der Graaf W, et al. Imatinibmesylate (STI-571 Glivec, Gleevec) is an active agent for gastrointestinal stromal tumours, but does not yield responses in other soft-tissue sarcomas that are unselected for a molecular target. Results from an EORTC Soft Tissue and Bone Sarcoma Group Phase II Study. Eur J Cancer 2003;39:2006-11. |
| 7. | Kim KW, Shinagare AB, Krajewski KM, Pyo J, Tirumani SH, Jagannathan JP, et al. Fluid retention associated with imatinib treatment in patients with gastrointestinal stromal tumor: Quantitative radiologic assessment and implications for management. Korean J Radiol 2015;16:304-13. |
| 8. | Posadas EM, Kwitkowski V, Kotz HL, Espina V, Minasian L, Tchabo N, et al. A prospective analysis of imatinib-induced c-KIT modulation in ovarian cancer: A phase II clinical study with proteomic profiling. Cancer 2007;110:309-17. |
| 9. | Blanke CD, Rankin C, Demetri GD, Ryan CW, von Mehren M, Benjamin RS, et al. Phase III randomized, intergroup trial assessing imatinib mesylate at two dose levels in patients with unresectable or metastatic gastrointestinal stromal tumors expressing the kit receptor tyrosine kinase: S0033. J Clin Oncol 2008;26:626-32. |
| 10. | Breccia M, Alimena G. Pleural/pericardic effusions during dasatinib treatment: Incidence, management and risk factors associated to their development. Expert Opin Drug Saf 2010;9:713-21. |
| 11. | Ran HH, Zhang R, Lu XC, Yang B, Fan H, Zhu HL. Imatinib-induced decompensated heart failure in an elderly patient with chronic myeloid leukemia: Case report and literature review. J Geriatr Cardiol 2012;9:411-4. |
| 12. | Kelly K, Swords R, Mahalingam D, Padmanabhan S, Giles FJ. Serosal inflammation (pleural and pericardial effusions) related to tyrosine kinase inhibitors. Target Oncol 2009;4:99-105. |
[Figure 1], [Figure 2], [Figure 3]
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