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Intraperitoneal alp...
Intraperitoneal alpha-Emitting Radioimmunotherapy with At-211 in Relapsed Ovarian Cancer: Long-Term Follow-up with Individual Absorbed Dose Estimations
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- Hallqvist, Andreas, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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- Bergmark, Karin, 1962 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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- Bäck, Tom, 1964 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiofysik,Institute of Clinical Sciences, Department of Radiation Physics
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- Andersson, Håkan, 1944 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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- Dahm-Kähler, Pernilla, 1964 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för obstetrik och gynekologi,Institute of Clinical Sciences, Department of Obstetrics and Gynecology
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- Johansson, Mia, 1977 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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- Lindegren, Sture, 1960 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiofysik,Institute of Clinical Sciences, Department of Radiation Physics
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Jensen, H. (author)
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- Jacobsson, Lars, 1947 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiofysik,Institute of Clinical Sciences, Department of Radiation Physics
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- Hultborn, Ragnar, 1946 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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- Palm, Stig, 1964 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiofysik,Institute of Clinical Sciences, Department of Radiation Physics
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- Albertsson, Per, 1964 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology
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(creator_code:org_t)
- 2019-01-25
- 2019
- English.
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In: Journal of Nuclear Medicine. - : Society of Nuclear Medicine. - 0161-5505 .- 2159-662X. ; 60:8, s. 1073-1079
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https://doi.org/10.2...
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Abstract
Subject headings
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- Eliminating microscopic residual disease with alpha-particle radiation is theoretically appealing. After extensive preclinical work with alpha-particle-emitting At-211, we performed a phase I trial with intraperitoneal alpha-particle therapy in epithelial ovarian cancer using At-211 conjugated to MX35, the antigen-binding fragments-F(ab')(2)-of a mouse monoclonal antibody. We now present clinical outcome data and toxicity in a long-term follow-up with individual absorbed dose estimations. Methods: Twelve patients with relapsed epithelial ovarian cancer, achieving a second complete or nearly complete response with chemotherapy, received intraperitoneal treatment with escalating (20-215 MBq/L) activity concentrations of At-211-MX35 F(ab')(2). Results: The activity concentration was escalated to 215 MBq/L without any dose-limiting toxicities. Most toxicities were low-grade and likely related to the treatment procedure, not clearly linked to the alpha-particle irradiation, with no observed hematologic toxicity. One grade 3 fatigue and 1 grade 4 intestinal perforation during catheter implantation were observed. Four patients had a survival of more than 6 y, one of whom did not relapse. At progression, chemotherapy was given without signs of reduced tolerability. Overall median survival was 35 mo, with a 1-, 2-, 5-, and 10-y survival of 100%, 83%, 50%, and 25%, respectively. Calculations of the absorbed doses showed that a lower specific activity is associated with a lower single-cell dose, whereas a high specific activity may result in a lower central dose in microtumors. Individual differences in absorbed dose to possible microtumors were due to variations in administered activity and the specific activity. Conclusion: No apparent signs of radiation-induced toxicity or decreased tolerance to relapse therapy were observed. The dosimetric calculations show that further optimization is advisable to increase the efficacy and reduce possible long-term toxicity.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- astatine
- alpha particle
- intraperitoneal
- ovarian cancer
- phase I
- monoclonal-antibodies
- recurrence
- dosimetry
- survival
- duration
- therapy
- trial
- hmfg1
- women
- 2nd
- Radiology
- Nuclear Medicine & Medical Imaging
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Hallqvist, Andre ...
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Bergmark, Karin, ...
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Bäck, Tom, 1964
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Andersson, Håkan ...
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Dahm-Kähler, Per ...
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Johansson, Mia, ...
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show more...
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Lindegren, Sture ...
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Jensen, H.
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Jacobsson, Lars, ...
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Hultborn, Ragnar ...
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Palm, Stig, 1964
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Albertsson, Per, ...
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
- Articles in the publication
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Journal of Nucle ...
- By the university
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University of Gothenburg