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1.
J Natl Cancer Inst ; 2024 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-39222012

RESUMEN

PURPOSE: Standard neoadjuvant chemotherapy (NACT) for locally advanced esophageal/gastroesophageal junction squamous cancer (LAEGSC), 5-fluorouracil (5FU)+platinum, is toxic and logistically challenging; alternative regimens are needed. PATIENTS AND METHODS: Phase III randomized open-label non-inferiority trial at Tata Memorial Center, India, in resectable LAEGSC. Patients were randomized 1:1 to three cycles of 3-weekly platinum (cisplatin 75 mg/m2 or carboplatin AUC 6) with paclitaxel 175 mg/m2 (day 1) or 5FU 1000 mg/m2 continuous infusion (days 1-4), followed by surgery. RESULTS: Between August 2014 and June 2022, we enrolled 420 patients; 210 to each arm. Significantly more patients on paclitaxel + platinum (194 (92.3%)] received all 3 chemotherapy cycles than on 5FU+platinum (170 [85.9%]), P = .009. 5FU + platinum caused more grade ≥ 3 toxicities (124 [69.7%]) than paclitaxel + platinum (97 [51.9%]), P = .001. Surgery was performed in 131 (62.4%) patients on 5FU + platinum vs 139 (66.2%) on paclitaxel + platinum, P = .415. Paclitaxel + platinum resulted in higher pathologic primary tumor clearance (33 [25.8%]) vs 17 [15%]; P = .04), and pathologic complete responses in 21.9% compared to 12.4% from 5FU + platinum, P = .053. Median OS was 27.5 months (95% CI, 18.6-43.5) from paclitaxel + platinum, which was non-inferior to 27.1 months (95% CI, 18.8-40.7) from 5FU + platinum; HR, 0.89 (95% CI, 0.72-1.09); P = .346. CONCLUSION: Neoadjuvant paclitaxel + platinum chemotherapy is safer, and results in similar R0 resections, higher pathologic tumor clearance and non-inferior survival, compared to 5FU + platinum. Paclitaxel + platinum should replace 5FU + platinum as NACT for resectable LAEGSC. CLINICAL TRIALS REGISTRY INDIA NUMBER: CTRI/2014/04/004516.

2.
Indian J Otolaryngol Head Neck Surg ; 76(4): 3566-3569, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39130238

RESUMEN

Cervical lymph node metastasis is one of the most common clinical presentations of papillary thyroid carcinoma (PTC). Occult thyroid carcinoma is described as absence of primary tumour or with presence of microcarcinoma in thyroid with cervical lymph node metastasis. Frequency of occult thyroid cancer has decreased due to developments in imaging and improved accuracy of histological examinations. 38 year old male presented to us with complaints of swelling over the left side of neck for the past 2 months. Ultrasonography was suggestive of multiple suspicious enlarged nodes in left level II, III, IV and V and fine needle aspiration cytology showed features of metastatic PTC. He was planned for total thyroidectomy with central compartment clearance and bilateral functional neck dissection. Final histopathology staging was pT0N1b. Radioactive iodine (RAI) screening showed residual functioning thyroid and later therapeutic RAI was administered. He has been on regular follow up and disease free for 1 year post treatment. Occult thyroid carcinoma is a rare diagnosis with multiple treatment plans. Few hypothesis for this entity includes tumor regression, ectopic thyroid carcinoma or missed pathological findings.

3.
Int J Cancer ; 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39093841

RESUMEN

No study has unequivocally proven that chemotherapy prolongs overall survival (OS) in advanced esophageal cancer. We conducted a Phase III randomized study in first-line advanced unresectable/metastatic esophageal/GEJ cancer. Patients aged 18-70 years, with performance status 0-2, were randomized to best supportive care (BSC) alone, or BSC with weekly paclitaxel 80 mg/m2. BSC comprised, as indicated, education, counselling, radiation, stenting, feeding tube placement, nutritional supplementation, medications like analgesics, and referral to a support group and palliative care. The primary endpoint was OS; secondary endpoints included progression free survival (PFS), response, toxicity, and QoL. Between May 2016-December 2020, we recruited 281 patients: 143 to chemotherapy and 138 to BSC. Histopathology was squamous in 269 (95.7%) patients. Median number of paclitaxel doses was 12 (IQR, 7-23). Median OS was 4.2 months (95% CI, 3.42-5.32) in BSC, and 9.2 months (95% CI, 8.02-10.48) in chemotherapy; HR, 0.49 (95% CI, 0.39-0.64); p < .001. As compared to BSC, chemotherapy increased response (2.9% to 39%), median PFS (2.1 to 4.2 months), 1-year OS (11% to 32%), 2-year OS (0 to 9%), median dysphagia-free survival (2.9 to 14.8 months), and global and esophagus-specific QoL, without significantly increasing all-grade or grade ≥3 toxicities. Using ESMO clinical benefit scale and ASCO Value Framework, palliative chemotherapy scored as having "substantial value." Our study provides the first level 1 evidence that chemotherapy prolongs survival in advanced esophageal/GEJ carcinoma. BSC alone is no longer appropriate. Weekly paclitaxel is an attractive option, especially in LMICs with limited access to immunotherapy.

4.
Clin Lung Cancer ; 2024 Jul 22.
Artículo en Inglés | MEDLINE | ID: mdl-39129089

RESUMEN

BACKGROUND: The genomic landscape of non-small cell lung cancer (NSCLC) in the Indian patients remains underexplored. We revealed distinctive genomic alterations of Indian NSCLC patients, thereby providing vital molecular insights for implementation of precision therapies. METHODS: We analyzed the genomic profiles of 325 lung adenocarcinoma and 81 lung squamous carcinoma samples from Indian patients using targeted sequencing of 50 cancer related genes. Correlations between genomic alterations and clinical characteristics were computed using statistical analyses. Additionally, we identified distinct features of Indian NSCLC genomes by comparison across different ethnicities. RESULTS: Our genomic analysis revealed several noticeable features of Indian NSCLC patients. Alterations in EGFR (45.8%), TP53 (27.4%), ALK (11.4%) and KRAS (10.2%) were predominant in adenocarcinoma, with 68% eligible for targeted therapies. Squamous carcinoma exhibited prevalent alterations in TP53 (40.7%), PIK3CA (17.3%), and CDKN2A (8.6%). We observed higher frequency of EGFR alterations (18.5%) in lung squamous carcinoma patients, significantly distinct from other ethnicities reported till date. Beyond established correlations, we observed 60% of PD-L1 negative squamous patients harbored TP53 alterations, suggesting intriguing therapeutic implications. CONCLUSIONS: Our data revealed unique genomic variations of adenocarcinoma and squamous carcinoma patients, with significant indications for precision medicine and clinical practice of lung cancers. The study emphasizes the importance of clinical utility of NGS for routine diagnostics.

5.
JAMA Netw Open ; 7(8): e2426076, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-39106066

RESUMEN

Importance: The role of olanzapine has not been adequately evaluated in moderately emetogenic chemotherapy (MEC) regimens with or without neurokinin-1 receptor antagonists. Objective: To evaluate whether addition of olanzapine to an MEC regimen reduces nausea, vomiting, and use of nausea rescue medications among patients with solid malignant tumors. Design, Setting, and Participants: This multicenter, open-label phase 3 randomized clinical trial included patients aged 18 years or older with solid malignant tumors who were receiving oxaliplatin-, carboplatin-, or irinotecan-based chemotherapy. The trial was conducted at 3 institutes in India from March 26, 2019, to August 26, 2023; the final cutoff date for analysis was September 10, 2023. Exposure: Patients were randomized 1:1 to dexamethasone, aprepitant, and palonosetron with olanzapine (experimental group) or without olanzapine (observation group). The experimental group received 10 mg of olanzapine orally once at night on days 1 through 3 of the chemotherapy regimen. Main Outcomes and Measures: The primary end point was complete response (CR), defined as the proportion of patients with no vomiting, no significant nausea (scored as <5 on a visual analog scale of 1 to 100), and no use of rescue medications for nausea. Secondary end points included the proportion of patients experiencing nausea and chemotherapy-induced nausea and vomiting (CINV), receiving rescue medications, and experiencing adverse events. Results: A total of 560 patients (259 [64%] male; median age, 51 years [range, 19-80 years]) were randomized. The analysis included 544 patients with evaluable data (274 assigned to olanzapine and 270 to observation). Baseline characteristics were evenly matched between the 2 groups. The proportion of patients with CR was significantly greater in the group with (248 [91%]) than without (222 [82%]) olanzapine in the overall 120-hour treatment period (P = .005). Likewise, there were significant differences between the olanzapine and observation groups for nausea control (264 [96%] vs 234 [87%]; P < .001) and CINV (262 [96%] vs 245 [91%]; P = .02) during the overall assessment period, and the proportion of patients receiving rescue medications significantly increased in the observation group (30 [11%]) compared with the olanzapine group (11 [4%]) (P = .001). Grade 1 somnolence was reported by 27 patients (10%) following administration of chemotherapy and olanzapine and by no patients in the observation group. Conclusions and Relevance: In this randomized clinical trial, the addition of olanzapine significantly improved CR rates as well as nausea and vomiting prevention rates in chemotherapy-naive patients who were receiving MEC regimens containing oxaliplatin, carboplatin, or irinotecan. These findings suggest that use of olanzapine should be considered as one of the standards of care in these chemotherapy regimens. Trial Registration: Clinical Trials Registry-India (CTRI) Identifier: CTRI/2018/12/016643.


Asunto(s)
Antieméticos , Náusea , Neoplasias , Olanzapina , Vómitos , Humanos , Olanzapina/uso terapéutico , Antieméticos/uso terapéutico , Masculino , Femenino , Persona de Mediana Edad , Vómitos/inducido químicamente , Vómitos/prevención & control , Náusea/inducido químicamente , Náusea/prevención & control , Adulto , Neoplasias/tratamiento farmacológico , Anciano , Aprepitant/uso terapéutico , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Dexametasona/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Palonosetrón/uso terapéutico , India
6.
Lancet Reg Health Southeast Asia ; 27: 100430, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39157507

RESUMEN

Lung cancer varies between Caucasians and Asians. There have been differences recorded in the epidemiology, genomics, standard therapies and outcomes, with variations according to the geography and ethnicity which affect the decision for optimal treatment of the patients. To better understand the profile of lung cancer in Southeast Asia, with a focus on India, we have comprehensively reviewed the available data, and discuss the challenges and the way forward. A substantial proportion of patients with lung cancer in Southeast Asia are neversmokers, and adenocarcinoma is the common histopathologic subtype, found in approximately a third of the patients. EGFR mutations are noted in 23-30% of patients, and ALK rearrangements are noted in 5-7%. Therapies are similar to global standards, although access to newer modalities and molecules is a challenge. Collaborative research, political will with various policy changes and patient advocacy are urgently needed.

7.
Artículo en Inglés | MEDLINE | ID: mdl-39074566

RESUMEN

PURPOSE: In the weekly-3-weekly study, cisplatin at 100 mg/m2 once-every-3-weeks led to superior locoregional control compared with cisplatin 30 mg/m2 once-a-week in combination with radical radiation for locally advanced head and neck squamous cell carcinoma (LAHNSCC). We report the updated analysis of the study. METHODS AND MATERIALS: In this phase 3 open-label noninferiority study conducted between 2013 and 2017, 300 patients with LAHNSCC were randomly assigned to receive cisplatin 100 mg/m2 once-in-every-weeks or cisplatin 30 mg/m2 once-a-week, concurrently with radiation. The primary endpoint was locoregional control. Secondary outcomes were overall survival, progression-free survival, and late adverse events. RESULTS: The median follow-up was 6.91 years (95% CI, 6.12-7.36). The updated 2-year and 5-year locoregional control rates for the once-a-week cisplatin arm were 58.75% (95% CI, 51.08-67.58) and 48.09% (95% CI, 40.26-57.43), whereas for the once-every-3-weeks, cisplatin arm were 73.95% (95% CI, 66.93-81.70) and 56.76% (95% CI, 48.46-66.48), respectively, hazard ratio = 1.44 (95% CI, 1.03-2.03), P = .034. The 5-year overall survival was 43.60% (95% CI, 36.29-52.37) in the once-a-week cisplatin arm and 50.55% (95% CI, 43.06-59.35) in the once-every-3-weeks cisplatin arm; P = .19. There was no difference in any grade or grade ≥3 late adverse events between the 2 arms, except for hearing dysfunction, which was significantly more common in patients who received high-dose cisplatin. CONCLUSIONS: Long-term follow-up confirms that cisplatin at 100 mg/m2 administered once-every-3-weeks concurrently with radical radiation for LAHNSCC leads to superior locoregional control compared with cisplatin 30 mg/m2 once-a-week and should remain one of the standard treatment options.

8.
JNCI Cancer Spectr ; 8(4)2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-39067037

RESUMEN

BACKGROUND: We evaluated whether the addition of docetaxel (D) to a combination comprising 5-fluorouracil/leucovorin (5-FU/LV) or capecitabine (C) plus oxaliplatin (O) (DOF/DOX) improved overall survival (OS) compared with 6 months of 5-fluorouracil (5-FU) or capecitabine in combination with oxaliplatin (FOLFOX/CAPOX) alone in advanced HER2-negative gastroesophageal junction and gastric adenocarcinomas (G/GEJ). METHODS: This study was an investigator-initiated, open-label, multi-institutional, randomized phase III trial in adult patients with HER2-negative advanced G/GEJs. The primary endpoint of the study was a comparison of median OS by Kaplan-Meier method. Next-generation sequencing was performed on tissue. RESULTS: Of the 324 patients randomly assigned between July 2020 and November 2022, 305 patients were evaluable for analysis (FOLFOX/CAPOX: 156; DOF/DOX: 149). With a median follow-up time of 19.2 months (95% Confidence Interval [CI] = 16.5 months to 21.9 months) for the entire cohort, the median OS was 10.1 months (95% CI = 9.2 to 10.9) for FOLFOX/CAPOX and 8.9 months (95% CI = 7.3 to 10.5) for DOF/DOX, and this difference was not statistically significant (P = .70). An increased proportion of grade 3 or grade 4 neutropenia (21% vs 3%; P < .001) and grade 2/3 neuropathy (17% vs 7%; P = .005) was seen in patients receiving DOF/DOX. Genomic profiling revealed a low incidence of microsatellite instability (1%) and a high incidence of BRCA1 (8.4%) and BRCA2 (7.5%) somatic alterations. CONCLUSION: FOLFOX or CAPOX chemotherapy for 6 months remains one of the standards of care in advanced HER2-negative gastroesophageal junction and gastric adenocarcinomas, with no additional survival benefit seen with the addition of docetaxel. Genomic profiling of patients revealed a higher than previously known incidence of somatic BRCA alterations, which requires further evaluation.CTRI (Clinical Trial Registry of India: CTRI/2020/03/023944).


Asunto(s)
Adenocarcinoma , Protocolos de Quimioterapia Combinada Antineoplásica , Capecitabina , Docetaxel , Unión Esofagogástrica , Fluorouracilo , Leucovorina , Oxaliplatino , Receptor ErbB-2 , Neoplasias Gástricas , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/genética , Neoplasias Gástricas/mortalidad , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Persona de Mediana Edad , Femenino , Capecitabina/administración & dosificación , Capecitabina/efectos adversos , Docetaxel/administración & dosificación , Leucovorina/administración & dosificación , Leucovorina/efectos adversos , Masculino , Anciano , Receptor ErbB-2/genética , Oxaliplatino/administración & dosificación , Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/genética , Adenocarcinoma/mortalidad , Adulto , Estimación de Kaplan-Meier , Compuestos Organoplatinos/administración & dosificación , Inestabilidad de Microsatélites , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/patología
9.
Ecancermedicalscience ; 18: 1721, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39021550

RESUMEN

Introduction: Osimertinib is more efficacious and as safe as first-generation epidermal growth factor receptor (EGFR)-directed tyrosine kinase inhibitors. However, osimertinib is not affordable for most patients in developing nations. Moreover, the minimum biologically effective dose of osimertinib may be less than the approved dose. Materials and methods: This was a retrospective observational multicentric study aimed to describe the efficacy (objective response rate (ORR), disease control rate (DCR), progression free survival (PFS), overall survival (OS)) and toxicity of osimertinib 80 mg orally administered less frequently than daily (ranging from every other day to once-a-week) in patients with EGFR-mutated non-small cell lung cancer. Results: Between January 2021 and August 2023, we enrolled 22 patients. Six received osimertinib 80 mg once-a-week, nine received 80 mg once-in-3-days and seven received 80 mg on alternate days. Responses included 0 complete responses, 7 (31.8%) partial responses, 9 (40.9%) stable disease and 5 (22.7%) progressive disease. ORR was 31.8%, and DCR was 72.7%. Median PFS was 9.2 months (95% confidence interval (CI) 2.9-15.7), and median OS was 17.8 months (95% CI, 3.2-32.6). In patients who received reduced frequency osimertinib in the second line and beyond, the ORR was 29.4%, DCR was 70.5%, median PFS was 5.9 months (95% CI, 1.1-10.6) and median OS was 17.6 months (95% CI, 2.9-32.2). Grade 3 and higher toxicities were noted in 8 (36.3%) patients. Conclusion: Less frequent dosing of osimertinib may be a valid treatment option, especially in the second line and beyond setting in patients who cannot afford full dose daily osimertinib. This may provide an additional treatment option with a similar toxicity profile as that of standard dose osimertinib.

11.
Artículo en Inglés | MEDLINE | ID: mdl-39060628

RESUMEN

PURPOSE: Nivolumab is approved at various doses, including 3 mg/kg, 240 mg and 480 mg flat doses at various dosing intervals. The concept of low-dose immunotherapy is gaining traction in recent years. However, there is a need to better understand the pharmacokinetics and clinical outcomes at lower doses. METHODS: Patients were either administered 40 mg flat dose or 3 mg/kg Q2W/Q3W, depending on affordability as per prevailing hospital practice. All patients were hospitalized on day 1 and pharmacokinetic samples were collected at 0, 0.5, 1.0, 6.0, 24.0, 72.0 h and day 14 following administration of the first dose of nivolumab. Plasma nivolumab levels were measured by ELISA. Patients were followed up for response and toxicity. RESULTS: Twenty five patients were included in the study. Fourteen received nivolumab at conventional dose (3 mg/kg), while 11 patients received low-dose (40 mg flat). The geometric means of dose normalized Cmax and AUC0-t were comparable between those who received conventional dose and low-dose of nivolumab (0.28 versus 0.23 µg/mL/mg and 0.0014 versus 0.0011 d/mL respectively). Nineteen patients were evaluable for response. ORR among patients who received conventional dose was 5/11 (45.5%) whereas it was 4/9 (44.4%) in the low-dose cohort. All 14 (100%) patients in conventional dosing group and 7/11 patients (63.64%) in low-dose group had treatment emergent adverse events. Grade ≥ 3 toxicities were observed in 4/14 patients in conventional dose group and none in low-dose group. CONCLUSION: Low-dose nivolumab leads to lower exposure in patients as compared with conventional dose, but low-dose was better tolerated, while response rates were comparable to conventional dose.

12.
Genes Chromosomes Cancer ; 63(6): e23250, 2024 06.
Artículo en Inglés | MEDLINE | ID: mdl-38884183

RESUMEN

INTRODUCTION: Urachal cancer (UC) is a rare genitourinary malignancy arising from the urachus, an embryonic remnant of the placental allantois. Its diagnosis remains ambiguous with late-stage cancer detection and represents a highly aggressive disease. Due to its rarity, there is no clear consensus on molecular signatures and appropriate clinical management of UC. CASE REPORT: We report a 45-year-old man with recurrent urachal adenocarcinoma (UA) treated with cystectomies, chemotherapy, and radiotherapy. The patient initially presented with hematuria and abdominal pain. Imaging revealed a nodular mass arising from the superior wall of the urinary bladder and extending to the urachus. Biopsy results suggested moderately differentiated UA with muscle layer involvement. The tumor recurred after 20 months, following which, another partial cystectomy was performed. Repeat progression was noted indicating highly aggressive disease. Targeted next-generation sequencing revealed the presence of EIF3E::RSPO2 fusion, along with BRAF and TP53 mutations, and EGFR gene amplification. This is the first case reporting the presence of this fusion in UA. Palliative medication and radiotherapy were administered to manage the disease. CONCLUSION: Current treatment modality of surgery may be effective in the early stages of recurrent UA; however, a standard chemotherapy and radiotherapy regimen is yet to be determined for advanced stages. The detection of the rare EIF3E::RSPO2 fusion warrants further studies on the significance of this variant as a possible therapeutic target for improved clinical management.


Asunto(s)
Adenocarcinoma , Neoplasias de la Vejiga Urinaria , Humanos , Masculino , Neoplasias de la Vejiga Urinaria/genética , Neoplasias de la Vejiga Urinaria/patología , Persona de Mediana Edad , Adenocarcinoma/genética , Adenocarcinoma/patología , Recurrencia Local de Neoplasia/genética , Recurrencia Local de Neoplasia/patología , Factor 3 de Iniciación Eucariótica/genética , Proteínas de Fusión Oncogénica/genética
13.
Indian J Otolaryngol Head Neck Surg ; 76(3): 2895-2901, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38883551

RESUMEN

Myofibrosarcoma is a distinct mesenchymal malignancy which commonly occurs in head and neck region. It has a high tendency for local recurrence and distant metastasis. 39-year-old male presented with epistaxis, nasal obstruction and left sided complete loss of vision. He underwent functional endoscopic sinus surgery and guided biopsy. MRI scan showed a lesion epicentred in the left maxillary sinus, superiorly extending into the orbit. He underwent Class 4b maxillectomy with neck dissection, tracheostomy and free flap reconstruction. Histopathological examination yielded final diagnosis as myofibrosarcoma of maxilla. The patient was planned for adjuvant radiotherapy and has been disease free for 3 years.

14.
Clin Med Insights Oncol ; 18: 11795549241254460, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38827521

RESUMEN

Background: There is contradicting evidence on vitamin D levels and cancer mortality rates. In this study, we aimed to evaluate the impact of baseline vitamin D level on the outcome in patients with estimated glomerular filtration rate (EGFR)-mutant advanced non-small-cell lung cancer (NSCLC) who received either gefitinib or gefitinib with chemotherapy (pemetrexed and carboplatin) as first-line therapy in a prospective randomized study. Methods: This was a post hoc analysis of a phase III randomized trial comparing gefitinib with gefitinib with carboplatin and pemetrexed in patients with advanced NSCLC with activating EGFR mutations in the first-line setting. As a part of regular practice, baseline vitamin D levels were measured using circulating 25(OH) levels in blood. We included 334 patients who had baseline vitamin D levels in the study and evaluated the effect of the vitamin D level on oncologic outcomes. Results: There were 136 (40.7%) patients with a sufficient (>20 ng/mL) baseline vitamin D level, and 198 (59.3%) patients who were deficient in vitamin D (<20 ng/mL). The median progression-free survival (PFS) in patients with normal vitamin D levels was 17 months, whereas that in patients with deficient vitamin D levels was 15 months, with a hazard ratio of 1.45 (95% confidence interval [CI] = 1.03-2.06). The median overall survival (OS) in patients with normal vitamin D levels was 28.6 months, whereas that in patients with deficient vitamin D levels was 28.5 months, with a hazard ratio of 1.17 (95% CI = 0.81-1.68). On multivariate analysis, only 2 factors impacted the PFS, the baseline vitamin D level, and the treatment regimen; other factors like age, sex, disease stage, and performance status did not. Conclusions: Baseline vitamin D levels have a significant impact on PFS, whereas OS is not affected by the baseline vitamin D levels on patients receiving targeted therapy for EGFR-mutant lung cancer. Trial registration: The trial was prospectively registered with the Clinical Trial Registry of India, registration number CTRI/2016/08/007149. The date of the registration was 5 August 2016.

15.
Neurol India ; 72(2): 278-284, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38691470

RESUMEN

PURPOSE: Refractory and/or recurrent meningiomas have poor outcomes, and the treatment options are limited. Peptide receptor radionuclide therapy (PRRT) has been used in this setting with promising results. We have documented our experience of using intravenous (IV) and intra-arterial (IA) approaches of Lu-177 DOTATATE PRRT. METHODS: Eight patients with relapsed/refractory high-grade meningioma received PRRT with Lu-177 DOTATATE by IV and an IA route. At least 2 cycles were administered. Time to progression was calculated from the first PRRT session to progression. The response was assessed on MRI using RANO criteria, and visual analysis of uptake was done on Ga-68 DOTANOC PET/CT. Post-therapy dosimetry calculations for estimating the absorbed dose were performed. RESULTS: Median time to progression was 8.9 months. One patient showed disease progression, whereas seven patients showed stable disease at 4 weeks following 2 cycles of PRRT. Dosimetric analysis showed higher dose and retention time by IA approach. No significant peri-procedural or PRRT associated toxicity was seen. CONCLUSION: PRRT is a safe and effective therapeutic option for relapsed/refractory meningioma. The IA approach yields better dose delivery and should be routinely practised.


Asunto(s)
Neoplasias Meníngeas , Meningioma , Octreótido , Octreótido/análogos & derivados , Humanos , Meningioma/radioterapia , Meningioma/diagnóstico por imagen , Neoplasias Meníngeas/radioterapia , Neoplasias Meníngeas/diagnóstico por imagen , Femenino , Masculino , Octreótido/uso terapéutico , Octreótido/administración & dosificación , Persona de Mediana Edad , Adulto , Compuestos Organometálicos/uso terapéutico , Anciano , Resultado del Tratamiento , Radiofármacos/uso terapéutico , Receptores de Péptidos , Centros de Atención Terciaria , Progresión de la Enfermedad
16.
JCO Precis Oncol ; 8: e2300622, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38754058

RESUMEN

PURPOSE: Medullary thyroid cancer (MTC) is a rare cancer originating from parafollicular C cells of the thyroid gland. Therapeutically relevant alterations in MTC are predominantly reported in RET oncogene, and lower-frequency alterations are reported in KRAS and BRAF. Nevertheless, there is an unmet need existing to analyze the MTC in the Indian cohort by using in-depth sequencing techniques that go beyond the identification of known therapeutic biomarkers. MATERIALS AND METHODS: Here, we characterize MTC using integrative whole-exome and whole-transcriptome sequencing of 32 MTC tissue samples. We performed clinically relevant variant analysis, molecular pathway analysis, tumor immune-microenvironment analysis, and structural characterization of RET novel mutation. RESULTS: Mutational landscape analysis shows expected RET mutations in 50% of the cases. Furthermore, we observed mutations in known cancer genes like KRAS, HRAS, SF3B1, and BRAF to be altered only in the RET-negative cohort. Pathway analysis showed differential enrichment of mutations in transcriptional deregulation genes in the RET-negative cohort. Furthermore, we observed novel RET kinase domain mutation Y900S showing affinity to RET inhibitors accessed via molecular docking and molecular dynamics simulation. CONCLUSION: Altogether, this study provides a detailed genomic characterization of patients with MTC of Indian origin, highlighting the possible utility of targeted therapies in this disease.


Asunto(s)
Carcinoma Neuroendocrino , Mutación , Proteínas Proto-Oncogénicas c-ret , Neoplasias de la Tiroides , Humanos , Proteínas Proto-Oncogénicas c-ret/genética , Neoplasias de la Tiroides/genética , Neoplasias de la Tiroides/patología , Carcinoma Neuroendocrino/genética , Masculino , Femenino , Persona de Mediana Edad , Adulto , Anciano , Adulto Joven
17.
Laryngoscope ; 134(9): 4045-4051, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38676455

RESUMEN

INTRODUCTION: Neck dissection forms an important component in the surgical management of head and neck cancers. By using the conventional techniques of neck dissection, a conspicuous scar is inevitable for the patients. The development of robotic assisted neck dissection provides for a scar-free neck along with good oncological and functional outcomes. METHODS: A prospective observational study was conducted in our institute from 2020 March to 2022 March, where robotic-assisted neck dissections performed via the modified bilateral axillo-breast insufflation technique. RESULTS: Eighty-two patients underwent robotic neck dissections in our institute. Notably, 79 patients were treatment-naïve. The average docking time was 12 min and console time was 160 ± 15 min. The mean lymph node yield was 28.2. The average post-operative stay was 5.6 days. The average follow-up was noted to be 6.4 months. The mean cosmetic satisfaction score in our patients was 4.45. Only one patient presented with nodal recurrence, who was identified as a defaulter for adjuvant treatment. Robotic neck dissection gives similar functional and oncological outcomes as compared with conventional neck dissection. Patients had excellent cosmetic satisfaction following the procedure. The limitations of these techniques include high cost of procedure and longer operating time. This is a level IV evidence study. CONCLUSION: Although good oncological, functional, and cosmetic outcomes have been attained in robotic assisted neck dissection, further randomized controlled studies need to be conducted to justify the added costs, cosmetic advantage, and the time taken. LEVEL OF EVIDENCE: IV Laryngoscope, 134:4045-4051, 2024.


Asunto(s)
Neoplasias de Cabeza y Cuello , Disección del Cuello , Procedimientos Quirúrgicos Robotizados , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Disección del Cuello/métodos , Femenino , Estudios Prospectivos , Masculino , Persona de Mediana Edad , Neoplasias de Cabeza y Cuello/cirugía , Anciano , Adulto , Tempo Operativo , Resultado del Tratamiento , Satisfacción del Paciente
19.
Indian J Otolaryngol Head Neck Surg ; 76(2): 2035-2041, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38566704

RESUMEN

Venous malformations are low flow endothelial malformations with aberrant and ectatic venous channels. They are defects in vascular growth which causes functional and cosmetic impairment. Gradual growth in size of the lesion occurs due to venous congestion or thrombosis. Venous malformations in parapharyngeal space are a rare entity and are difficult to diagnose. Case Report. 13 year old boy presented with a history of hyposmia and progressive difficulty in breathing for a duration of 2.5 years. MRI face and neck with contrast showed a 4.5 × 4.3x3.6 cm lesion in the left parapharyngeal space. CT angiogram of brain and neck demonstrated a heterogeneously enhancing mass in the left parapharyngeal region. PET scan illustrated an ill-defined mass in the left pre styloid parapharyngeal space. Biopsy from the lesion showed features consistent with venolymphatic malformation. Flexible laryngoscopy showed a bulge over the left soft palate region with narrowing of nasopharyngeal lumen. Patient underwent transoral robotic surgery for complete excision of the mass. Post-operative period was uneventful. He has been on follow up for the past 1 year with no evidence of any residual or recurrent disease. Venolymphatic malformation is a rare lesion in the parapharyngeal space which is difficult to diagnose pre operatively. Surgical excision is the preferred modality of treatment for deep seated lesions in the parapharyngeal space. The advent of transoral robotic surgery have reduced the morbidity and improved clearance for such cases.

20.
Clin Genitourin Cancer ; 22(3): 102053, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38442451

RESUMEN

BACKGROUND: Penile cancer is a rare malignancy with scant data on the impact of systemic therapy on outcomes. METHODS: Retrospective observational study of patients with a histological diagnosis of carcinoma penis treated with systemic therapy at the Tata Memorial Centre (Mumbai, India) between August 2010 and February 2018. Primary objective was overall survival (OS); secondary objectives included assessment of clinical characteristics, treatment approaches, and toxicity profiles. RESULTS: We included 91 patients with penile carcinoma who received systemic therapy at our center. Intent of therapy was curative in 71 patients (78%), and palliative in 20 (22%). Median age was 57 years (interquartile range [IQR], 50-65.5) for curatively treated patients and 58.5 years (IQR, 44-65.2) for those with advanced disease. Common presenting symptoms were lumps (70%), and pain (57%). Neoadjuvant chemotherapy (NACT) with paclitaxel + platinum was administered to 19 patients (20.9%), of which 7 (37%) attained complete or partial response. Six patients (31.5%) underwent R0 surgery post-NACT. All 71 patients underwent primary surgery; 47 (66.2%) undergoing partial penectomy. Of the 20 patients treated with palliative first-line chemotherapy, 4(20%) attained a partial response. Median OS of patients treated in curative and palliative settings was 33.8 months (95% CI, 17.2-not recorded) and 11.4 months (95% CI, 9.53-23.3), respectively. CONCLUSIONS: Patients with penile cancer treated with systemic therapy have poor outcomes. Little over a third of the patients respond to neoadjuvant chemotherapy and those with advanced disease have poor survival despite systemic therapy, emphasizing the need for early detection and optimum management of primary and nodal disease.


Asunto(s)
Neoplasias del Pene , Centros de Atención Terciaria , Humanos , Masculino , Neoplasias del Pene/patología , Neoplasias del Pene/tratamiento farmacológico , Neoplasias del Pene/mortalidad , Neoplasias del Pene/terapia , Persona de Mediana Edad , Estudios Retrospectivos , Anciano , India , Centros de Atención Terciaria/estadística & datos numéricos , Adulto , Terapia Neoadyuvante , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Resultado del Tratamiento , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico , Cuidados Paliativos
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