0000000000200092

AUTHOR

Ambreen Khawar

0000-0002-6229-4812

showing 4 related works from this author

Clinical Translation and First In-Human Use of [44Sc]Sc-PSMA-617 for PET Imaging of Metastasized Castrate-Resistant Prostate Cancer

2017

Background: Various trivalent radiometals are well suited for labeling of DOTA-conjugated variants of Glu-ureido-based prostate-specific membrane antigen (PSMA) inhibitors. The DOTA-conjugate PSMA-617 has proven high potential in PSMA radioligand therapy (PSMA-RLT) of prostate cancer as well as PET imaging when labeled with lutetium-177 and gallium-68 respectively. Considering the relatively short physical half-life of gallium-68 this positron emitter precludes prolonged acquisition periods, as required for pre-therapeutic dosimetry or intraoperative applications. In this context, the positron emitter scandium-44 is an attractive alternative for PET imaging. We report the synthesis of [44Sc…

OncologyMalemedicine.medical_specialtytheranostics.Medicine (miscellaneous)Context (language use)SpleenGallium RadioisotopesLutetiumurologic and male genital diseases030218 nuclear medicine & medical imaging03 medical and health sciencesProstate cancerHeterocyclic Compounds 1-Ring0302 clinical medicineInternal medicinePositron Emission Tomography Computed TomographyLNCaPmedicineDosimetryHumansRadiometryPharmacology Toxicology and Pharmaceutics (miscellaneous)AgedRadioisotopesUrinary bladderChemistrybusiness.industryDipeptidesProstate-Specific Antigenmedicine.diseaseprostate cancerPSMA-617scandium-44Small intestineProstatic Neoplasms Castration-Resistantmedicine.anatomical_structurePET030220 oncology & carcinogenesisAbsorbed doseRadiopharmaceuticalsNuclear medicinebusinessScandiumResearch PaperHalf-LifeTheranostics
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[177Lu]Lu-DOTA-zoledronate therapy - first application in a patient with primary osseous metastatic bronchial carcinoma.

2020

Radioisotopesmedicine.medical_specialtybusiness.industryBone NeoplasmsGeneral MedicineLutetiummedicine.diseaseZoledronic Acidchemistry.chemical_compoundCarcinoma BronchogenicchemistryBronchial carcinomaCarcinomamedicineDOTAHumansRadiology Nuclear Medicine and imagingRadiologybusinessNuklearmedizin. Nuclear medicine
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Biodistribution and post-therapy dosimetric analysis of [177Lu]Lu-DOTAZOL in patients with osteoblastic metastases: first results

2019

Abstract Background Preclinical biodistribution and dosimetric analysis of [177Lu]Lu-DOTAZOL suggest the bisphosphonate zoledronate as a promising new radiopharmaceutical for therapy of bone metastases. We evaluated biodistribution and normal organ absorbed doses resulting from therapeutic doses of [177Lu]Lu-DOTAZOL in patients with metastatic skeletal disease. Method Four patients with metastatic skeletal disease (age range, 64–83 years) secondary to metastatic castration-resistant prostate carcinoma or bronchial carcinoma were treated with a mean dose of 5968 ± 64 MBq (161.3 mCi) of [177Lu]Lu-DOTAZOL. Biodistribution was assessed with serial planar whole body scintigraphy at 20 min and 3,…

lcsh:Medical physics. Medical radiology. Nuclear medicine[177Lu]Lu-DOTAZOLBiodistributionKidneyUrinary bladderbusiness.industrymedicine.medical_treatmentlcsh:R895-920Organ absorbed dosesBone metastasisBisphosphonatemedicine.diseaseProstate carcinomamedicine.anatomical_structureAbsorbed doseRadionuclide therapymedicineRadiology Nuclear Medicine and imagingBone marrowBronchial carcinomabusinessNuclear medicineBone seeking therapeutic radionuclidesOriginal ResearchEJNMMI Research
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Prediction of Normal Organ Absorbed Doses for [177Lu]Lu-PSMA-617 Using [44Sc]Sc-PSMA-617 Pharmacokinetics in Patients With Metastatic Castration Resi…

2018

In vivo pharmacokinetic analysis of [Sc]Sc-PSMA-617 was used to determine the normal organ-absorbed doses that may result from therapeutic activity of [Lu]Lu-PSMA-617 and to predict the maximum permissible activity of [Lu]Lu-PSMA-617 for patients with metastatic castration-resistant prostate carcinoma. Methods Pharmacokinetics of [Sc]Sc-PSMA-617 was evaluated in 5 patients with metastatic castration-resistant prostate carcinoma using dynamic PET/CT, followed by 3 static PET/CT acquisitions and blood sample collection over 19.5 hours, as well as urine sample collection at 2 time points. Total activity measured in source organs by PET imaging, as well as counts per milliliter measured in bloo…

Malemedicine.medical_treatmentUrineLutetiumRadiation Dosageurologic and male genital diseases030218 nuclear medicine & medical imagingCastration-Resistant Prostate CarcinomaHeterocyclic Compounds 1-Ring03 medical and health sciences0302 clinical medicinePharmacokineticsIn vivoPositron Emission Tomography Computed TomographyOrganometallic CompoundsmedicineHumansRadiology Nuclear Medicine and imagingExternal beam radiotherapyNeoplasm MetastasisAgedUrinary bladderbusiness.industryRadiotherapy Planning Computer-AssistedCarcinomaRadiotherapy DosageDipeptidesGeneral MedicineProstate-Specific AntigenProstatic Neoplasms Castration-Resistantmedicine.anatomical_structure030220 oncology & carcinogenesisSample collectionBone marrowRadiopharmaceuticalsbusinessNuclear medicineScandiumClinical Nuclear Medicine
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