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Andrews DW, Judy KD, Scott CB, Garcia S, Harshyne LA, Kenyon L, Talekar K, Flanders A, Atsina KB, Kim L, Martinez N, Shi W, Werner-Wasik M, Liu H, Prosniak M, Curtis M, Kean R, Ye DY, Bongiorno E, Sauma S, Exley MA, Pigott K, Hooper DC. Phase Ib Clinical Trial of IGV-001 for Patients with Newly Diagnosed Glioblastoma. Clin Cancer Res 2021; 27:1912-1922. [PMID: 33500356 DOI: 10.1158/1078-0432.ccr-20-3805] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/23/2020] [Accepted: 01/14/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Despite standard of care (SOC) established by Stupp, glioblastoma remains a uniformly poor prognosis. We evaluated IGV-001, which combines autologous glioblastoma tumor cells and an antisense oligonucleotide against IGF type 1 receptor (IMV-001), in newly diagnosed glioblastoma. PATIENTS AND METHODS This open-label protocol was approved by the Institutional Review Board at Thomas Jefferson University. Tumor cells collected during resection were treated ex vivo with IMV-001, encapsulated in biodiffusion chambers with additional IMV-001, irradiated, then implanted in abdominal acceptor sites. Patients were randomized to four exposure levels, and SOC was initiated 4-6 weeks later. On the basis of clinical improvements, randomization was halted after patient 23, and subsequent patients received only the highest exposure. Safety and tumor progression were primary and secondary objectives, respectively. Time-to-event outcomes were compared with the SOC arms of published studies. RESULTS Thirty-three patients were enrolled, and median follow-up was 3.1 years. Six patients had adverse events (grade ≤3) possibly related to IGV-001. Median progression-free survival (PFS) was 9.8 months in the intent-to-treat population (vs. SOC, 6.5 months; P = 0.0003). In IGV-001-treated patients who met Stupp-eligible criteria, PFS was 11.6 months overall (n = 22; P = 0.001) and 17.1 months at the highest exposure (n = 10; P = 0.0025). The greatest overall survival was observed in Stupp-eligible patients receiving the highest exposure (median, 38.2 months; P = 0.044). Stupp-eligible patients with methylated O6-methylguanine-DNA methyltransferase promoter (n = 10) demonstrated median PFS of 38.4 months (P = 0.0008). Evidence of immune activation was noted. CONCLUSIONS IGV-001 was well tolerated, PFS compared favorably with SOC, and evidence suggested an immune-mediated mechanism (ClinicalTrials.gov: NCT02507583).
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Affiliation(s)
- David W Andrews
- Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania. .,Imvax, Inc., Philadelphia, Pennsylvania
| | - Kevin D Judy
- Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Samantha Garcia
- Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Larry A Harshyne
- Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Lawrence Kenyon
- Department of Pathology, Anatomy, and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Kiran Talekar
- Department of Neuroradiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Adam Flanders
- Department of Neuroradiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Kofi-Buaku Atsina
- Department of Neuroradiology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Lyndon Kim
- Mount Sinai Hospital, New York, New York
| | - Nina Martinez
- Department of Neurology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Wenyin Shi
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Maria Werner-Wasik
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Haisong Liu
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Mikhail Prosniak
- Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Mark Curtis
- Department of Pathology, Anatomy, and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Rhonda Kean
- Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Donald Y Ye
- Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Emily Bongiorno
- Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Sami Sauma
- Neuroscience Initiative, Advanced Science Research Center and Graduate Program in Biology, The Graduate Center at the City University of New York, New York, New York
| | | | | | - D Craig Hooper
- Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania.,Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
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Judy KD, Andrews DW, Harshyne L, Kenyon L, Talekar K, Atsina KB, Kim L, Shi W, Werner-Wasik M, Kean R, Garcia S, Pigott K, Scott CB, Hooper DC. Abstract B71: Phase 1b/2 prospective randomized trial of four autologous cell vaccine dose cohorts for initial treatment of glioblastoma. Cancer Immunol Res 2020. [DOI: 10.1158/2326-6074.tumimm18-b71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: We present a novel autologous cell vaccine therapy designed to treat patients with newly diagnosed glioblastoma (Trial Registration: IND 14379, NCT01550523).
Methods: This phase 1b trial has a phase 2 design with 4 randomized vaccine dose cohorts in 33 patients with the objective being safety assessment but also including clinical, radiographic, and immune analyses. Eligibility criteria included age > 18 and Karnofsky score of > 60; neither bihemispheric disease nor extent of resection were exclusion criteria but autoimmune diseases were. During craniotomy for tumor resection, if frozen section confirmed GBM, incisions were made in the lower abdomen through the rectus sheath and pockets created between the sheath and the muscle and the wounds closed with a temporary three-layer closure. Tumor resection involved an aspirator that collected morselized viable tumor tissue in sterile traps. The tissue was processed by overnight culture with 0.2 mg of an IGF-1R antisense oligodeoxynucleotide/gm. The next (first postoperative) day, treated tumor cells were harvested, encapsulated in either ten or twenty small biodiffusion chambers along with 4 micrograms of the IGF-1R antisense, irradiated and then implanted at bedside in the abdominal acceptor sites as previously described (1). Chambers were explanted 24 or 48 hours later, depending on randomization. Standard of care according to Stupp (2) was initiated at 6 weeks. Studies included 3T MRI imaging and analysis of serial blood samples for T cell function and cytokine levels. Disease progression was assessed using RANO (3) and iRANO (4) criteria with a data cutoff of March 1 (N=30) used for this analysis.
Results: The trial opened September 1, 2015 and completed accrual on March 1, 2018. A midpoint interim analysis revealed significantly more robust cytokine responses at the highest vaccine dose. Randomization was therefore stopped at subject 23 and amended to treat using only the highest dose. Progression-free survival (PFS) was compared to three historic SOC comparators (Stupp [2], Kong [5], and an antecedent cohort of 37 consecutive patients treated with SOC at our institution [TJUH]). PFS was significantly improved at 10.5 mo v. SOC comparators: 6.9 mo (Stupp, p = .003), 5.3 mo (Kong, p = .002) and 7 mo (TJUH, p = .013). Seventy-five percent of the 14 patients in the highest-dose cohort had robust proinflammatory and early evidence of sustained immune reactivity associated with tumor regression or no recurrence after surgery.
Conclusion: These data reflect a therapeutic benefit defined as significant improvement in PFS without increased safety risk compared to three different SOC cohorts. Since GBM remains one of the most challenging solid tumors, this treatment design invites investigator collaboration in a multicenter phase 2 trial.
References: 1. Andrew et al. J Clin Oncol 19:2189-2200; 2. Stupp et al. NEJM 352:987-96; 3. Wen et al. J Clin. Oncol 28:1963-72; 4. Okada et al. Lancet Oncol 16:534-42; 5. Kong et al. Oncotarget 8:7003-13.
Citation Format: Kevin D. Judy, David W. Andrews, Larry Harshyne, Lawrence Kenyon, Kiran Talekar, Kofi-Buaku Atsina, Lyndon Kim, Wenyin Shi, Maria Werner-Wasik, Rhonda Kean, Samantha Garcia, Kara Pigott, Charles B. Scott, D. Craig Hooper. Phase 1b/2 prospective randomized trial of four autologous cell vaccine dose cohorts for initial treatment of glioblastoma [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2018 Nov 27-30; Miami Beach, FL. Philadelphia (PA): AACR; Cancer Immunol Res 2020;8(4 Suppl):Abstract nr B71.
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Affiliation(s)
| | | | | | | | | | | | - Lyndon Kim
- 1Thomas Jefferson University, Philadelphia, PA,
| | - Wenyin Shi
- 1Thomas Jefferson University, Philadelphia, PA,
| | | | - Rhonda Kean
- 1Thomas Jefferson University, Philadelphia, PA,
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Andrews DW, Garcia S, Judy KD, Harshyne LA, Govindarajan S, Kenyon L, Talekar K, Flanders A, Atsina KB, Kim L, Martinez NL, Shi W, Werner-Wasik M, Prosniak M, Curtis MT, Kean R, Bongiorno E, Sauma S, Pigott K, Scott CB, Hooper DC. Abstract CT038: Results of a Phase Ib trial of an autologous cell vaccine for newly diagnosed glioblastoma. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-ct038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: We evaluated an autologous cell vaccine, a combination of GBM tumor cells and an antisense molecule against insulin-like growth factor type 1 receptor DNA/mRNA (IGF-1R AS ODN), in adults with newly diagnosed GBM (NCT02507583).
Methods: Tumor cells collected during resection were treated ex vivo with IGF-1R AS ODN, encapsulated in biodiffusion chambers with IGF-1R AS ODN, irradiated, then implanted in an abdominal acceptor site on the first post-operative day. Four vaccine exposures were evaluated: lowest (10 chambers implanted for 24 hours); lower (10 / 48 hours); higher (20 / 24 hours); and highest (20 / 48 hours). Standard of care (SOC; ie, radiotherapy and temozolomide) was initiated after 4-6 weeks. Randomization was halted after patient 23 and subsequent patients received the highest exposure. Evaluation of safety and tumor responses were the primary and secondary objectives, respectively. Exploratory objectives included assessment of progression-free survival (PFS) and overall survival (OS). The SOC comparator group was an antecedent cohort of 35 newly diagnosed, GBM patients treated at the same center.
Results: Thirty-three patients were enrolled between September 1, 2015 and March 1, 2018. Six, 5, 5, and 17 patients received the lowest, lower, higher, and highest exposures. Median (range) follow-up was 13 (4-39) months. As of the January 1, 2019 cutoff, no vaccine-related adverse events were observed. Seventeen of 33 (51.5%) remained progression-free, 12 of whom are alive and functioning well. The autologous cell vaccine significantly prolonged PFS and OS vs. SOC (Table). Survival advantages were conferred by the highest exposure to the autologous cell vaccine and good T cell function prior to surgery.
Conclusions: This vaccine was well-tolerated and prolonged PFS and OS when compared with SOC alone.
Table.Survival outcomes in patients receiving vaccine vs. SOC aloneTreatment group2 yr OS estimateMedian OS (mo)p-value v. SOC for OS1 yr PFS estimateMedian PFS estimatep-value v. SOC for PFSVaccine highest dose (N=17)34%21.9.04141%10.4.031Vaccine all (ITT, N=33)31%17.3.01642%9.8.018SOC (n=35)14%12.128%6.9
Citation Format: David W. Andrews, Samantha Garcia, Kevin D. Judy, Larry A. Harshyne, Sanjana Govindarajan, Lawrence Kenyon, Kiran Talekar, Adam Flanders, Kofi-Buaku Atsina, Lyndon Kim, Nina L. Martinez, Wenyin Shi, Maria Werner-Wasik, Mikhail Prosniak, Mark T. Curtis, Rhonda Kean, Emily Bongiorno, Sami Sauma, Kara Pigott, Charles B. Scott, D Craig Hooper. Results of a Phase Ib trial of an autologous cell vaccine for newly diagnosed glioblastoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr CT038.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Lyndon Kim
- Thomas Jefferson University, Philadelphia, PA
| | | | - Wenyin Shi
- Thomas Jefferson University, Philadelphia, PA
| | | | | | | | - Rhonda Kean
- Thomas Jefferson University, Philadelphia, PA
| | | | - Sami Sauma
- Thomas Jefferson University, Philadelphia, PA
| | - Kara Pigott
- Thomas Jefferson University, Philadelphia, PA
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Pigott K, Rick J, Xie SX, Hurtig H, Chen-Plotkin A, Duda JE, Morley JF, Chahine LM, Dahodwala N, Akhtar RS, Siderowf A, Trojanowski JQ, Weintraub D. Longitudinal study of normal cognition in Parkinson disease. Neurology 2015; 85:1276-82. [PMID: 26362285 DOI: 10.1212/wnl.0000000000002001] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 05/07/2015] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE To report the rates and predictors of progression from normal cognition to either mild cognitive impairment (MCI) or dementia using standardized neuropsychological methods. METHODS A prospective cohort of patients diagnosed with Parkinson disease (PD) and baseline normal cognition was assessed for cognitive decline, performance, and function for a minimum of 2 years, and up to 6. A panel of movement disorders experts classified patients as having normal cognition, MCI, or dementia, with 55/68 (80.9%) of eligible patients seen at year 6. Kaplan-Meier curves and Cox proportional hazard models were used to examine cognitive decline and its predictors. RESULTS We enrolled 141 patients, who averaged 68.8 years of age, 63% men, who had PD on average for 5 years. The cumulative incidence of cognitive impairment was 8.5% at year 1, increasing to 47.4% by year 6. All incident MCI cases had progressed to dementia by year 5. In a multivariate analysis, predictors of future decline were male sex (p = 0.02), higher Unified Parkinson's Disease Rating Scale motor score (p ≤ 0.001), and worse global cognitive score (p < 0.001). CONCLUSIONS Approximately half of patients with PD with normal cognition at baseline develop cognitive impairment within 6 years and all new MCI cases progress to dementia within 5 years. Our results show that the transition from normal cognition to cognitive impairment, including dementia, occurs frequently and quickly. Certain clinical and cognitive variables may be useful in predicting progression to cognitive impairment in PD.
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Affiliation(s)
- Kara Pigott
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Jacqueline Rick
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Sharon X Xie
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Howard Hurtig
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Alice Chen-Plotkin
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - John E Duda
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - James F Morley
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Lama M Chahine
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Nabila Dahodwala
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Rizwan S Akhtar
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Andrew Siderowf
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - John Q Trojanowski
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA
| | - Daniel Weintraub
- From the Departments of Neurology (K.P., J.R., H.H., A.C.-P., J.E.D., J.F.M., L.M.C., N.D., R.S.A., D.W.), Pathology and Laboratory Medicine (J.Q.T.), and Psychiatry (D.W.), Perelman School of Medicine at the University of Pennsylvania; the Department of Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania; Philadelphia Veterans Affairs Medical Center (J.E.D., J.F.M., D.W.); and Avid Radiopharmaceuticals (A.S.), Philadelphia, PA.
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Abstract
Spatial motor–intentional “Aiming” bias is a dysfunction in initiation/execution of motor–intentional behavior, resulting in hypokinetic and hypometric leftward movements. Aiming bias may contribute to posture, balance, and movement problems and uniquely account for disability in post-stroke spatial neglect. Body movement may modify and even worsen Aiming errors, but therapy techniques, such as visual scanning training, do not take this into account. Here, we evaluated (1) whether instructing neglect patients to move midline body parts improves their ability to explore left space and (2) whether this has a different impact on different patients. A 68-year-old woman with spatial neglect after a right basal ganglia infarct had difficulty orienting to and identifying left-sided objects. She was prompted with four instructions: “look to the left,” “point with your nose to the left,” “point with your [right] hand to the left,” and “stick out your tongue and point it to the left.” She oriented leftward dramatically better when pointing with the tongue/nose, than she did when pointing with the hand. We then tested nine more consecutive patients with spatial neglect using the same instructions. Only four of them made any orienting errors. Only one patient made >50% errors when pointing with the hand, and she did not benefit from pointing with the tongue/nose. We observed that pointing with the tongue could facilitate left-sided orientation in a stroke survivor with spatial neglect. If midline structures are represented more bilaterally, they may be less affected by Aiming bias. Alternatively, moving the body midline may be more permissive for leftward orienting than moving right body parts. We were not able to replicate this effect in another patient; we suspect that the magnitude of this effect may depend upon the degree to which patients have directional akinesia, spatial Where deficits, or cerebellar/frontal cortical lesions. Future research could examine these hypotheses.
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Affiliation(s)
- Amit Chaudhari
- Stroke Rehabilitation Research, Kessler Foundation , West Orange, NJ , USA ; Department of Neurology and Neurosciences, Rutgers-New Jersey Medical School , Newark, NJ , USA
| | - Kara Pigott
- Department of Neurology, University of Pennsylvania Health System , Philadelphia, PA , USA
| | - A M Barrett
- Stroke Rehabilitation Research, Kessler Foundation , West Orange, NJ , USA ; Department of Neurology and Neurosciences, Rutgers-New Jersey Medical School , Newark, NJ , USA
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Woolf D, Williams N, Bakshi R, Madani S, Fawcitt S, Eaton D, Pigott K, Short S, Keshtgar M. Biological Dosimetry With γ-H2AX Foci Using Radiation Therapy for Breast Cancer as a Model. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Woolf DK, Williams NR, Bakhshi R, Madani Y, Fawcitt S, Pigott K, Short SC, Keshtgar M. Abstract P5-14-13: An observational study using g-H2AX foci to investigate cardiac doses of radiation in women following adjuvant radiotherapy for breast cancer: External beam radiotherapy versus targeted intraoperative radiotherapy. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-14-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
External beam radiotherapy (EBRT) is the gold standard adjuvant treatment after breast conserving surgery for localised breast cancer. A recent phase 3 trial has shown the non-inferiority of intraoperative radiotherapy (IORT) compared with EBRT in terms of short-term safety and efficacy (TARGIT A Trial; Lancet 2010). IORT also has advantages in cost saving and patient convenience.
Radiation exposure of the heart and cardiac vessels is associated with an increase in morbidity and mortality following EBRT for breast cancer and has been shown to increase the rate of major coronary events by 7.4% per gray of exposure to the heart (Darby; NEJM 2013). IORT uses low energy x-rays (50 kV) and is likely to reduce the radiation exposure of the cardiovascular system compared with EBRT.
We have used γ-H2AX foci formation in peripheral blood lymphocytes as a surrogate marker of radiation dose to the heart and great vessels. The phosphorylated histone H2AX protein (γ-H2AX) is expressed after induction of DNA double strand breaks caused by ionising radiation, created as the lymphocytes pass through and adjacent to the irradiated field.
Methods
34 patients were recruited, having either EBRT or IORT as part of a randomised controlled trial. The main inclusion criteria were adult females with early breast cancer suitable for breast conserving surgery and the main exclusion criteria were previous malignancy, recent exposure to radiation (excluding CT planning scan) and prior chemotherapy. Blood samples were taken immediately prior to and 30 minutes after either first fraction of EBRT or after IORT treatment, and then rapidly processed to allow quantification of the γ-H2AX biomarker in lymphocytes (Rothkamm; Radiology 2007). This study had approval from the Local Research and Ethics Committee.
Results
Data were available for 31 patients. Means and standard deviations for the change in γ-H2AX foci number per cell for each group are summarised in table 1. Following IORT there was an increase of 0.203 foci per cell (range -1.436 to 1.275) compared with an increase of 0.935 foci per cell (range -0.679 to 2.216) in the EBRT group; this difference was highly significant (p = 0.009).
Table 1: γ-H2AX foci per cell IORTEBRTMean0.2030.935SD0.6330.764n1318
Conclusions
These data show a significantly greater change in γ-H2AX foci number per cell following one fraction of EBRT compared to IORT. IORT is a single treatment (20Gy at the applicator surface) whereas EBRT is repeated 15 times (2.67Gy x 15 fractions) multiplying the effect on the patients’ cardiovascular system.
It may be hypothesised that this reduced radiotherapy dose from IORT will reduce the risk of cardiovascular morbidity and mortality compared to EBRT. This is the first study to demonstrate the real time effect of radiotherapy to the heart and great vessels using a biomarker and demonstrates a proof of concept methodology for similar applications.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-14-13.
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Affiliation(s)
- DK Woolf
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - NR Williams
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - R Bakhshi
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - Y Madani
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - S Fawcitt
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - K Pigott
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - SC Short
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
| | - M Keshtgar
- Royal Free Hospital NHS Trust, London, United Kingdom; UCL, London, United Kingdom; Leeds Institute of Cancer and Pathology, Leeds, United Kingdom
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8
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Kaisary A, Pigott K, Vilarino-Varela M, Simpson N, Cullen D. UP-02.162 Fiducial Markers for Image Localization Guidance in Prostate Gland Radiotherapy. Urology 2011. [DOI: 10.1016/j.urology.2011.07.980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Woolf D, Bakhshi R, Fawcitt S, Worku M, Ghosh DB, Sivabalasingham S, Williams NR, Short S, Pigott K, Keshtgar MR. An observational study using γ-H2AX foci to investigate cardiac doses of radiation following adjuvant radiotherapy for breast cancer: Standard external beam radiotherapy to the breast versus intraoperative radiotherapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.tps129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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10
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Eaton D, Duck S, Pigott K, Best B, Ghaus T, Gonzalez R, Reynolds C, Keshtgar M. P258 Radiation safety of intra-operative breast radiotherapy with INTRABEAM – experience from the TARGIT randomised controlled trial. Breast 2011. [DOI: 10.1016/s0960-9776(11)70202-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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11
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Keshtgar M, Davidson T, Pigott K, Falzon M, Jones A. Current status and advances in management of early breast cancer. Int J Surg 2010; 8:199-202. [PMID: 20206723 DOI: 10.1016/j.ijsu.2010.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2009] [Revised: 01/31/2010] [Accepted: 02/06/2010] [Indexed: 12/28/2022]
Abstract
Breast cancer is the most common female cancer. Worldwide, more than a million women are diagnosed every year. However despite this increase, the mortality rate is declining. This is due to combination of factors including early diagnosis and effective treatment. This manuscript which is presented in two sections outlines the current status in management of early breast cancer. Section 1 focuses on the advances in diagnosis and surgical treatment of breast cancer and give an overview of the histopathological aspects. The focus of section 2 is on advances on adjuvant treatment of breast cancer including radiotherapy, chemotherapy and endocrine treatment.
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Affiliation(s)
- M Keshtgar
- Department of Surgery, Royal Free Hospital NHS Trust, London NW3 2QG, UK.
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12
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Abstract
OBJECTIVES Benchmarking statements provide a mechanism for making academic standards explicit within a subject area. They allow comparisons between courses to be based on learning outcomes rather than by defining a curriculum. No such statement has been produced for informatics. In the absence of any established benchmarking statements for informatics a new biomedical informatics course at St. George's has developed a first benchmarking statement - which defines the skills knowledge and understanding a biomedical informatics student should acquire by the time they complete the course. METHODS Review of national biomedical science and computing subject benchmarking statements and academic educational objectives and national occupational competencies in informatics. RESULTS We have developed a twenty-item benchmarking statement and this is available on-line at: http://www.gpinformatics.org/benchmark2006/. This benchmarking statement includes a definition and justification for all twenty statements. We found international educational objectives and national informatics competencies useful and these are mapped to each one. National subject benchmarks for computing and biomedical science were less useful and have not been systematically mapped. CONCLUSIONS Benchmarking the skills, knowledge and understanding that a student should acquire during their course of study may be more useful than setting a standard curriculum. This benchmarking statement is a first step towards defining the learning outcomes and competencies a student of this discipline should acquire. The international informatics community should consider moving from a standard curriculum to an agreed subject benchmarking statement for medical, health and biomedical informatics.
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Affiliation(s)
- K Pigott
- Biomedical Informatics, Division of Community Health Sciences, St George's - University of London, London SW17 ORE, UK
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13
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Ahmed H, Pigott K, Kaisary A. Comparison of pre-implant prostate volume with intra-operative volume in patients undergoing prostate brachytherapy. Urology 2005. [DOI: 10.1016/j.urology.2005.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Wazait HD, Al-Buheissi SZ, Dudderidge T, Patel HRH, Jarmulowicz M, Pigott K, Miller RA. Rare Case of Primary Lymphoma of the Prostate: Giving the Patient the Benefit of the Doubt. Urol Int 2003; 71:338-40. [PMID: 14512663 DOI: 10.1159/000072693] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2002] [Accepted: 07/10/2002] [Indexed: 11/19/2022]
Abstract
One third of non-Hodgkin lymphomas are extranodal, however it is uncommon for the lower urinary tract to be involved. We present an unusual case of a low-grade primary lymphoma affecting the prostate, which responded well to radical radiotherapy.
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Affiliation(s)
- H D Wazait
- Royal Free and Whittington Hospitals, London, UK.
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15
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Goodchild K, Hoskin P, Dische S, Pigott K, Powell M, Saunders M. A feasibility study of continuous hyperfractionated accelerated radiotherapy (CHART) and brachytherapy in patients with early oral or oropharyngeal carcinomas. Radiother Oncol 1999; 50:29-31. [PMID: 10225554 DOI: 10.1016/s0167-8140(99)00013-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Overall time is important in the curative treatment of head and neck cancer (Dische, S., Saunders, M.I., Barrett, A., Harvey, A., Gibson, D., Parmar, M., 1997, Radiother. Oncol., 44:123-136). Results are presented on outcome and morbidity in ten patients with head and neck cancer treated with external beam irradiation (CHART protocol) and interstitial implantation, completing treatment in 12 days. Local control and overall survival at 5 years was 67%. Acute and late morbidity was acceptable giving scope for dose escalation.
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Affiliation(s)
- K Goodchild
- Marie Curie Research Wing, Mount Vernon Hospital, Northwood, Middlesex, UK
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17
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Saunders MI, Rojas A, Lyn BE, Pigott K, Powell M, Goodchild K, Hoskin PJ, Phillips H, Verma N. Experience with dose escalation using CHARTWEL (continuous hyperfractionated accelerated radiotherapy weekend less) in non-small-cell lung cancer. Br J Cancer 1998; 78:1323-8. [PMID: 9823973 PMCID: PMC2063173 DOI: 10.1038/bjc.1998.678] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Results from the multicentre randomized trial of CHART (continuous, hyperfractionated, accelerated radiotherapy) in non-small-cell lung cancer (NSCLC) showed a significant increase in survival (P=0.004) compared with conventional radiotherapy and a therapeutic benefit relative to late radiation-induced morbidity. However, 60% of patients died because of failure to control locoregional disease. These findings have stimulated interest in assessing the feasibility of dose escalation using a modified CHART schedule. Acute and late morbidity with a CHARTWEL (CHART WeekEnd Less) schedule of 54 Gy in 16 days was compared with that observed with 60 Gy in 18 days in patients with locally advanced NSCLC. The incidence and severity of dysphagia and of analgesia were scored using a semiquantitative clinical scale. Late radiation-induced morbidity, namely pulmonary, spinal cord and oesophageal strictures, were monitored using clinical and/or radiological criteria. Acute dysphagia and the analgesia required to control the symptoms were more severe and lasted longer in patients treated with CHARTWEL 60 Gy (P< or = 0.02). However, at 12 weeks, oesophagitis was similar to that seen with 54 Gy and did not lead to consequential damage. Early radiation pneumonitis was not increased but, after 6 months, there was a higher incidence of mild pulmonary toxicity compared with CHARTWEL 54 Gy. No cases of radiation myelitis, oesophageal strictures or of grade 2 or 3 lung morbidity have been encountered. CHARTWEL 60 Gy resulted in an enhancement of oesophagitis and grade 1 lung toxicity compared with CHARTWEL 54 Gy. These were of no clinical significance, but may be important if CHARTWEL is used with concomitant chemotherapy. These results provide a basis for further dose escalation or the introduction of concurrent chemotherapy.
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Affiliation(s)
- M I Saunders
- Marie Curie Research Wing, Mount Vernon Hospital Northwood, Middlesex, UK
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18
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Abstract
Pure small cell carcinoma of the prostate is a rare anaplastic tumour. This report presents the clinicopathological findings of two patients presenting with this disease. Immunohistochemistry was positive for protein gene product 9.5, neurone specific enolase and calcitonin. Staining was negative for prostate specific antigen and prostate acid phosphatase. androgen ablation has no place in the management of this lesion and patients with this disease should be managed as if they have a neuroendocrine tumour.
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Affiliation(s)
- S S Sandhu
- Department of Urology, Royal Free Hospital School of Medicine, London, UK
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19
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Abstract
The case history is presented of a patient with primary intracerebral oligodendroglioma, who received multiple therapies for local recurrence. Four years following the initial diagnosis, the patient presented with spinal cord compression due to intradural metastases. The patterns of recurrence and metastases in oligodendroglioma are discussed.
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Affiliation(s)
- N Shah
- Department of Clinical Oncology, Royal Free Hospital and School of Medicine, London, UK
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20
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Saunders MI, Hoskin PJ, Pigott K, Powell ME, Goodchild K, Dische S, Denekamp J, Stratford MR, Dennis MF, Rojas AM. Accelerated radiotherapy, carbogen and nicotinamide (ARCON) in locally advanced head and neck cancer: a feasibility study. Radiother Oncol 1997; 45:159-66. [PMID: 9424007 DOI: 10.1016/s0167-8140(97)00151-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE ARCON (Accelerated Radiotherapy, CarbOgen, Nicotinamide) achieves a large therapeutic gain in rodents. A phase I/II study was therefore undertaken to determine its feasibility in patients with locally advanced head and neck cancer. MATERIALS AND METHODS The accelerated regime CHART was used in 35 patients given carbogen and/or nicotinamide with 11 small volume fractions. Eight patients received carbogen, 12 received nicotinamide and 15 were treated with ARCON. Treatment compliance, side-effects and acute mucositis were monitored in all cases. RESULTS All patients underwent CHART as intended. In the 23 patients receiving carbogen, two failed to complete treatment. Compliance with nicotinamide was much lower. Out of 25 patients, only 52% received 10-11 doses of the 80 mg/kg/day of the drug. The most common side-effect was nausea and vomiting, which responded to standard anti-emetics in almost half of the patients. Historical comparisons with the CHART head and neck trials indicate that there was no increase in the severity of acute mucositis in any of these patients. Although the observation period is not sufficiently long to be definitive (median 20 months) there is no evidence of an increase in late normal tissue reactions. CONCLUSIONS ARCON using CHART as the radiotherapy protocol is feasible in patients with advanced head and neck cancer. However, we are concerned about the low compliance rate in our patients, which is far lower than that reported elsewhere. The implications are discussed together with identifying strategies for increasing compliance.
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Affiliation(s)
- M I Saunders
- Marie Curie Research Wing, Mount Vernon Hospital, Northwood, Middlesex, UK
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21
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Saunders M, Lyn E, Pigott K, Powell M, Goodchild K, Hoskin P, Phillips H, Curie M. 482 Experience of a dose escalation study using CHARTWEL (continuous hyperfractionated accelerated radiotherapy weekendless) in non-small cell lung cancer. Lung Cancer 1997. [DOI: 10.1016/s0169-5002(97)89862-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Sandhu SS, Kaisary AV, Matveev VB, Pigott K. Radical prostatectomy from three centres in the UK. Br J Urol 1997; 80:189-90. [PMID: 9240210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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23
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Abstract
Loco-regional recurrence in squamous cell carcinoma of the head and neck can occur at the site of the original primary tumour or in the marginal zone at its periphery. While nodal recurrence may occur in previously involved nodes or in uninvolved nodes within or outside the treatment volume. The exact site of failure was determined in 89 patients treated with radical radiotherapy for carcinoma of the head and neck. Of 73 patients who failed at the primary site 71 (97%) did so within the site of the original tumour; only two patients developed a marginal recurrence. Of the 30 (93%) patients with N1-3 disease who later showed failure in the lymph nodes, 28 (93%) did so at their original site of disease. These results support the view that when radiation fails it usually does so in the centre of the tumour. In order to improve our results we need to deal with radioresistance at the site of mass disease. Ways of approaching this include the combination of surgery with radiotherapy, the addition of a sensitiser or an increase in the dose to the tumour mass by boosting a 'mini' volume using conformal techniques.
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Affiliation(s)
- K Pigott
- Mount Vernon Hospital, Northwood, Middlesex, UK
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24
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Pigott K, Dische S, Saunders MI. Short communication: the addition of carbogen and nicotinamide to a palliative fractionation schedule for locally advanced breast cancer. Br J Radiol 1995; 68:215-8. [PMID: 7537598 DOI: 10.1259/0007-1285-68-806-215] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Tumour cell hypoxia is a recognized cause of resistance to radiotherapy. Using clinically relevant dose-fractionation schedules in a mouse tumour model, the addition of carbogen and nicotinamide to overcome chronic and acute hypoxia results in a marked increase in radioresponsiveness with a lower degree of sensitization in normal tissue. Carbogen and nicotinamide were added to the palliative radiation treatment given to six patients with locally advanced breast cancer. The aim of the pilot study was to determine if patients tolerated the addition of carbogen and nicotinamide and to assess if there was any increase in radiosensitivity of the skin. Patients received 30 Gy prescribed to the intersection dose in six fractions over 17/18 days with full skin bolus to the tumour. All patients were given 6 g of nicotinamide orally 90 min before radiation treatment. Carbogen breathing was started 5 min prior to treatment and continued during it. Patients tolerated the treatment well, with vomiting in one patient being the only side effect that could be related to the nicotinamide, and this settled with an anti-emetic. No increase in skin reaction was noted with the addition of carbogen and nicotinamide, and good tumour regression was achieved.
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Affiliation(s)
- K Pigott
- Mount Vernon Hospital, Northwood, Middlesex, UK
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