Interstitial pneumonitis secondary to leuprorelin acetate for prostate cancer

Interstitial pneumonitis associated with leuprorelin acetate for a prostate cancer: A case report

INTRODUCTION

Androgen deprivation therapy remains the essential treatment for disseminated prostate cancer. Interstitial pneumonitis following this therapy has been documented for just a few cases. However, reported cases frequently describe the onset of symptoms after recent administration (days or a few weeks) of both GnRH analogues and androgen antagonists, which makes the precise individual impact of each treatment difficult to estimate.

CASE REPORT

This report presents a case of a 94-year-old patient with interstitial pneumonitis whose onset started three months after the first dose of leuprorelin and bicalutamide for a metastatic prostate cancer.

MANAGEMENT AND OUTCOME

Once other possible diagnosis were ruled out, empiric corticosteroid treatment was initiated within 48 h of the admission. A spectacular clinical and radiological improvement was observed after 3 doses of steroids, enabling the patient to recover his basal respiratory situation. We considered that the most probable cause was toxic interstitial pneumonitis induced by leuprorelin.

DISCUSSION

To our knowledge, it describes the longest interval between last administration of antiandrogen therapy and the development of pneumonitis. This fact may support a direct relation with leuprorelin, whose serum levels remain high for months because of its long-acting depot formulation.

Apalutamide-induced severe interstitial lung disease: A report of two cases from Japan

Apalutamide, a competitive inhibitor of the androgen receptor, is being increasingly used for the treatment of prostate cancer. There have been few reports of interstitial lung disease in clinical trials of apalutamide. However, two cases of apalutamide-induced interstitial lung disease with respiratory failure in Japanese males, who were successfully treated with high-dose corticosteroids, are presented here. These cases suggest that clinicians should be alert to the potentially life-threatening risk of pulmonary toxicity associated with apalutamide treatment.

[DRUG-INDUCED INTERSTITIAL LUNG DISEASE DURING COMBINED ANDROGEN BLOCKADE WITH BICALUTAMIDE AND LEUPRORELIN ACETATE FOR PROSTATE CANCER]

We report a case of drug-induced interstitial lung disease as a result of combined androgen blockade. A 75 year-old male was receiving bicalutamide and reuprorelin acetate treatment for advanced prostate cancer. Two weeks after starting therapy, the patient developed dyspnea due to interstitial lung disease. Based on the clinical diagnosis of drug-induced interstitial lung disease, bicalutamide was withdrawn and steroid therapy was initiated. The patient succumbed 6 days later due to respiratory failure. Drug-induced interstitial lung disease following combined androgen blockade is a rare, but potentially serious adverse effect that requires close attention.

Successful recovery from multiple organ failure associated with bicalutamide and leuprorelin acetate for prostate cancer

I report a case of multiple organ failure (acute kidney injury, interstitial pneumonitis and liver dysfunction) associated with combined androgen blockade(CAB) with bicalutamide and leuprorelin acetate for prostate cancer that was successfully managed by prompt hemodialysis and withdrawal of medications. Finally, patient received orchiectomy for the treatment of prostate cancer, and the histology of renal biopsy revealed drug-induced tubulointerstitial nephritis. Although the condition is extremely rare, urologists should be aware of CAB-induced organ failures such as those of the lung, kidney and liver. It should also be noted that urologists should not initially prescribe long-acting Gn-RH.

Interstitial pneumonitis secondary to leuprorelin acetate for prostate cancer

Androgen blockade is standard treatment for advanced prostate cancer. We report an uncommon case of interstitial pneumonitis induced by leuprorelin acetate.