Newly diagnosed and previously treated multicentric Castleman disease respond equally to siltuximab.
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ABSTRACT:
SUBMITTER: van Rhee F
PROVIDER: S-EPMC7820993 | biostudies-literature | 2021 Jan
REPOSITORIES: biostudies-literature
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Newly diagnosed and previously treated multicentric Castleman disease respond equally to siltuximab.
van Rhee Frits F Rossi Jean-François JF Simpson David D Fosså Alexander A Dispenzieri Angela A Kuruvilla John J Goh Yeow Tee YT Cho Seok-Goo SG Capra Marcelo M Liu Ting T Casper Corey C Cavet James J Wong Raymond S RS
British journal of haematology 20201031 1
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Project description:Human herpes virus-8 (HHV8)-negative, idiopathic multicentric Castleman disease (iMCD) is a rare lymphoproliferative disorder sustained by pro-inflammatory cytokines, including interleukin-6 (IL-6). According to the international evidence-based criteria developed by the Castleman Disease Collaborative Network (CDCN), siltuximab, which works by inhibiting IL-6, is the recommended choice for iMCD treatment. We report a case of a 63-year-old white male with iMCD who has been on maintenance therapy with siltuximab for 15 years - representing one of the longest treatment periods of any patient with iMCD treated with siltuximab. The patient initially presented with fatigue and night sweats, with progressive worsening of the symptoms. Whole-body positron emission tomography/computed tomography revealed hypermetabolic lymphadenopathy. The patient had histopathologically confirmed Castleman disease, plasma cell type, and was negative for HHV8 and human immunodeficiency virus. The patient had abnormally high C-reactive protein (CRP) levels, a surrogate measure for IL-6. The patient was treated with high-dose steroids but had recurring lymphadenopathy early on. He was enrolled in the phase I dose-finding clinical trial of siltuximab, during which he achieved marked clinical improvement and sustained inhibition of CRP. The patient was enrolled in the long-term safety study and continues to receive siltuximab at 11 mg/kg every 3 weeks. He is presently receiving commercial siltuximab and has remained asymptomatic, with no evidence of lymphadenopathy. The case study presented is consistent with the evidence that siltuximab is a safe and effective therapy for the long-term management of iMCD. In addition, this case highlights the importance of prompt diagnosis for patients with iMCD, as effective therapy is available for patients as described in the CDCN and National Comprehensive Cancer Network iMCD treatment guidelines.Plain language summaryThe case of a 63-year-old white male with idiopathic multicentric Castleman disease who was successfully treated with siltuximab for 15 years: Idiopathic multicentric Castleman disease (iMCD) is a group of rare lymphoproliferative disorders with shared histopathological features that affect lymph nodes in multiple regions of the body. The signs and symptoms of iMCD can be varied, with the disease being mild in some patients while life-threatening in others. A timely diagnosis of iMCD can be challenging but is required for effective management. We report a case of a patient who was diagnosed with iMCD. The patient was given high-dose steroids but continued to show progressive disease. He was then started on siltuximab, a targeted antibody therapy against a specific cytokine (interleukin-6) involved in inflammation. The patient responded well to the treatment, has shown evidence of long-term disease control, and has not reported any serious adverse events related to long-term siltuximab use. He has received 11 mg/kg of siltuximab every 3 weeks for the past 15 years. This case emphasizes the value of using siltuximab therapy for long-term management of this rare disorder. In addition, it highlights the importance of prompt diagnosis for patients with iMCD, as effective therapy is available, as described in iMCD treatment guidelines.
| S-EPMC8894931 | biostudies-literature
Project description:Idiopathic multicentric Castleman disease (iMCD) is a rare heterogeneous disorder involving multicentric lymphadenopathy, systemic inflammation, and cytokine-driven organ dysfunction. Despite the approval of siltuximab, a monoclonal antibody against interleukin-6, for the treatment of iMCD, it is not known how long patients should receive siltuximab before determining whether the treatment is beneficial and should be continued. We performed post hoc analyses of the phase 2 randomized double-blind placebo-controlled trial of siltuximab for the treatment of patients with iMCD to determine the sequence of normalization of laboratory, clinical, and lymph node responses in patients who responded to siltuximab. Seventy-nine patients were enrolled in the trial (siltuximab, n = 53; placebo plus best supportive care, n = 26). Progression-free survival (PFS) was significantly improved in siltuximab-treated patients compared with those receiving placebo (P = .0001). The median PFS was 14.5 months (95% confidence interval, 13.6 months to upper bound not reached) for patients receiving placebo but was not reached for patients receiving siltuximab. In siltuximab-treated patients who achieved durable tumor (radiologic) and symptomatic responses (18 [34%] of 53), the median time to normalization of abnormal laboratory tests and clinical end points occurred in the following sequence: thrombocytosis, symptomatic response, elevated C-reactive protein, hypoalbuminemia, anemia, lymph node response, hyperfibrinogenemia, and elevated immunoglobulin G. Siltuximab treatment prolongs PFS, rapidly improves symptomatology, and provides meaningful clinical benefit despite some laboratory tests and enlarged lymph nodes taking months to normalize in treatment responders. These data support the continued frontline use of siltuximab for iMCD, as recommended by international guidelines. This trial was registered at www.clinicaltrials.gov as #NCT01024036.
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Project description:This SuperSeries is composed of the SubSeries listed below.
2024-05-06 | GSE241097 | GEO
Project description:Multicentric Castleman Disease
| PRJNA1006393 | ENA
Project description: Not available
| S-EPMC9584165 | biostudies-literature
Project description:Siltuximab is the only US Food and Drug Administration-approved treatment for idiopathic multicentric Castleman disease (iMCD), a rare haematological disorder associated with substantial morbidity and mortality. Although siltuximab induces a response in a significant proportion of iMCD patients via interleukin 6 (IL6) neutralization, it is not universally effective. To develop a predictive model of response, we performed an in-depth analysis of 38 baseline laboratory parameters in iMCD patients from the phase II siltuximab trial who met criteria for treatment response or treatment failure. Univariate analyses identified eight baseline laboratory parameters that were significantly different between responders and treatment failures: albumin, immunoglobulin G (IgG), immunoglobulin A, C reactive protein (CRP), fibrinogen, haemoglobin, sodium and triglycerides. Stepwise logistic regression analysis of these candidate parameters identified a top performing model that included fibrinogen, IgG, haemoglobin and CRP. Based on cross-validation of the final multivariate logistic regression model, the model accurately discriminated responders from those who failed treatment (area under the receiver operator characteristic curve 0·86, 95% confidence interval: 0·73-0·95). All four laboratory parameters associated with response to siltuximab have biological relationships with IL6 and acute inflammation. Our model suggests that iMCD patients with laboratory evidence of an inflammatory syndrome are the best candidates for siltuximab therapy.
| S-EPMC9547643 | biostudies-literature
Project description:The safety and efficacy of siltuximab (CNTO 328) was tested in combination with lenalidomide, bortezomib and dexamethasone (RVD) in patients with newly-diagnosed, previously untreated symptomatic multiple myeloma. Fourteen patients were enrolled in the study, eleven of whom qualified to receive therapy. A majority of patients (81.8%) completed the minimal number or more of the four required cycles, while two patients completed only three cycles. The maximum tolerated dose (MTD) of siltuximab with RVD was dose level -1 (siltuximab: 8.3?mg/kg; bortezomib: 1.3?mg/m(2); lenalidomide: 25?mg; dexamethasone: 20?mg). Serious adverse events were grade 3 pneumonia and grade 4 thrombocytopenia, and no deaths occurred during the study or with follow-up (median follow-up 28.1 months). An overall response rate, after 3-4 cycles of therapy, of 90.9% (95% confidence interval (CI): 58.7%, 99.8%) (9.1% complete response (95% CI: 0.2%, 41.3%), 45.5% very good partial response (95% CI: 16.7%, 76.6%) and 36.4% partial response (95% CI: 10.9%, 69.2%)) was seen. Two patients withdrew consent, and nine patients (81.8%) opted for autologous stem cell transplantation.
| S-EPMC4771967 | biostudies-literature
Project description:Idiopathic multicentric Castleman disease (iMCD) is a rare and poorly understood hematologic disorder characterized by lymphadenopathy, systemic inflammation, cytopenias, and life-threatening multiorgan dysfunction. Interleukin-6 (IL-6) inhibition effectively treats approximately one-third of patients. Limited options exist for nonresponders, because the etiology, dysregulated cell types, and signaling pathways are unknown. We previously reported 3 anti-IL-6 nonresponders with increased mTOR activation who responded to mTOR inhibition with sirolimus. We investigated mTOR signaling in tissue and serum proteomes from iMCD patients and controls. mTOR activation was increased in the interfollicular space of iMCD lymph nodes (N = 26) compared with control lymph nodes by immunohistochemistry (IHC) for pS6, p4EBP1, and p70S6K, known effectors and readouts of mTORC1 activation. IHC for pS6 also revealed increased mTOR activation in iMCD compared with Hodgkin lymphoma, systemic lupus erythematosus, and reactive lymph nodes, suggesting that the mTOR activation in iMCD is not just a product of lymphoproliferation/inflammatory lymphadenopathy. Further, the degree of mTOR activation in iMCD was comparable to autoimmune lymphoproliferative syndrome, a disease driven by mTOR hyperactivation that responds to sirolimus treatment. Gene set enrichment analysis of serum proteomic data from iMCD patients (n = 88) and controls (n = 42) showed significantly enriched mTORC1 signaling. Finally, functional studies revealed increased baseline mTOR pathway activation in peripheral monocytes and T cells from iMCD remission samples compared with healthy controls. IL-6 stimulation augmented mTOR activation in iMCD patients, which was abrogated with JAK1/2 inhibition. These findings support mTOR activation as a novel therapeutic target for iMCD, which is being investigated through a trial of sirolimus (NCT03933904).
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Project description:Kaposi sarcoma herpesvirus (KSHV)-associated multicentric Castleman disease (MCD) is a rare, polyclonal lymphoproliferative disorder characterized by flares of inflammatory symptoms, edema, cytopenias, lymphadenopathy, and splenomegaly. Diagnosis requires a lymph node biopsy. Pathogenesis is related to dysregulated inflammatory cytokines, including human and viral interleukin-6. Rituximab alone or in combination with chemotherapy, such as liposomal doxorubicin, has led to an overall survival of over 90% at 5 years. Experimental approaches to treatment include virus activated cytotoxic therapy with high-dose zidovudine and valganciclovir and targeting human interleukin-6 activity. Despite successful treatment of KSHV-MCD, patients remain at high risk for developing non-Hodgkin lymphomas.
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