Publications by authors named "Vaikunth Cuchelkar"

Article Synopsis
  • IMbrella A is a Phase III study that allowed patients from earlier atezolizumab trials, like IMpower133, to continue receiving treatment for extensive-stage small cell lung cancer (SCLC) with atezolizumab plus chemotherapy after the initial trials closed.
  • In IMbrella A, 18 out of 26 eligible patients rolled over for further treatment, and results showed that median follow-up was 59.4 months with estimated three-, four-, and five-year overall survival rates of 16%, 13%, and 12%, respectively.
  • The study reported that 16.7% of patients experienced serious adverse events, with only one grade two hypothyroidism noted,
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Purpose: Rituximab with cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) represents the standard of care for first-line treatment of diffuse large B-cell lymphoma (DLBCL). However, many patients are unable to tolerate R-CHOP and have inferior outcomes. This study aimed to develop a practical tool to help physicians identify patients with newly diagnosed DLBCL unlikely to tolerate a full course of R-CHOP.

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Background: Systemic therapies for metastatic biliary tract cancers are few, and patients have a median overall survival of less than 1 year. MyPathway evaluates the activity of US Food and Drug Administration-approved therapies in non-indicated tumours with potentially actionable molecular alterations. In this study, we present an analysis of patients with metastatic biliary tract cancers with HER2 amplification, overexpression, or both treated with a dual anti-HER2 regimen, pertuzumab plus trastuzumab, from MyPathway.

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Article Synopsis
  • * The ongoing phase 2a study included 57 patients with HER2-amplified metastatic colorectal cancer; most had poor treatment outcomes, but 32% showed some level of tumor response (complete or partial).
  • * Common side effects reported included diarrhea, fatigue, and nausea, with 37% of patients experiencing severe adverse effects (grade 3-4).
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A wide variety of therapeutic agents may benefit by specifically directing them to the mitochondria in tumor cells. The current work aimed to design delivery systems that would enable a combination of tumor and mitochondrial targeting for such therapeutic entities. To this end, novel HPMA copolymer-based delivery systems that employ triphenylphosphonium (TPP) ions as mitochondriotropic agents were developed.

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Novel polymeric delivery systems for the photosensitizer mesochlorin e6 (Mce6) were synthesized to overcome problems of systemic toxicity. A disulfide bond was included to allow for quick release of Mce6 from the N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer backbone once internalized in tumor tissue. The synthesized conjugates demonstrated a time-dependent reductive cleavage with an accompanying increase in the quantum yield of singlet oxygen generation on exposure to DTT.

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