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Cella, David

https://orcid.org/0000-0002-9881-4541

Mayo Clinic

Northwestern University

Citations 53

Treatment of myelodysplastic syndrome patients with erythropoietin with or without granulocyte colony-stimulating factor: results of a prospective randomized phase 3 trial by the Eastern Cooperative Oncology Group (E1996)
Greenberg, Peter L. , Sun, Zhuoxin , Miller, Kenneth B., Bennett, John M. , Tallman, Martin S. , Dewald, Gordon W., Paietta, Elisabeth , Jagt, Richard van der , Houston, Jessie G., Thomas, Mary L., Cella, David , Rowe, Jacob M.

Blood | June 29, 2009 | Volume: 114 | Issue: 12 | Pages: 2393-2400

10.1182/blood-2009-03-211797 Get It

Abstract This phase 3 prospective randomized trial evaluated the efficacy and long-term safety of erythropoietin (EPO) with or without granulocyte colony-stimulating factor plus supportive care (SC; n = 53) versus SC alone (n = 57) for the treatment of anemic patients with lower-risk myelodysplastic syndromes. The response rates in the EPO versus SC alone arms were 36% versus 9.6%, respectively, at the initial treatment step, 47% in the EPO arm, including subsequent steps. Responding patients had significantly lower serum EPO levels (45% vs 5% responses for levels < 200 mU/mL vs ≥ 200 mU/mL) and improvement in multiple quality-of-life domains. With prolonged follow-up (median, 5.8 years), no differences were found in overall survival of patients in the EPO versus SC arms (median, 3.1 vs 2.6 years) or in the incidence of transformation to acute myeloid leukemia (7.5% and 10.5% patients, respectively). Increased survival was demonstrated for erythroid responders versus nonresponders (median, 5.5 vs 2.3 years). Flow cytometric analysis showed that the percentage of P-glycoprotein+ CD34+ marrow blasts was positively correlated with longer overall survival. In comparison with SC alone, patients receiving EPO with or without granulocyte colony-stimulating factor plus SC had improved erythroid responses, similar survival, and incidence of acute myeloid leukemia transformation.
Quality of Life Outcomes From a Randomized Phase III Trial of Cisplatin With or Without Topotecan in Advanced Carcinoma of the Cervix: A Gynecologic Oncology Group Study
Monk, Bradley J. , Huang, Helen, Cella, David , Long, Harry J.

Journal of Clinical Oncology | May 24, 2005 | Volume: 23 | Issue: 21 | Pages: 4617-4625

10.1200/jco.2005.10.522 Get It

Purpose To prospectively assess the impact of treatment with cisplatin alone or in combination with topotecan (CT) on quality of life (QOL) in patients with advanced or recurrent cervical cancer, and to explore the prognostic value of baseline QOL scores. Patients and Methods Patients entered on Gynecologic Oncology Group (GOG) Protocol 179 were expected to complete QOL assessments at four time points using Functional Assessment of Cancer Therapy–General (FACT-G), Cervix subscale (Cx subscale), FACT/GOG–Neurotoxicity subscale (NTX subscale), Brief Pain Inventory (BPI), and UNISCALE (UNI). Adjusting for patient age, baseline scores, and effects of time, we longitudinally examined treatment effect on QOL during and after chemotherapy. Results Among patients randomly allocated to receive cisplatin (n = 146) or CT (n = 147), there were no statistically significant differences in QOL up to 9 months after randomization despite more hematologic toxicity in the combination arm. QOL assessments were completed at rates of 98%, 85%, 68%, and 59%, respectively, for the four time points, with similar rates and reasons for nonparticipation between regimens. Baseline FACT-G (P = .0016) and BPI (P = .0001) scores were significantly associated with patient age; older patients had better QOL and less pain. Baseline UNI was positively correlated with FACT-G (r = 0.66; P < .001) and Cx subscale (r = 0.29; P < .001), and negatively related to BPI (r = −0.41; P < .0001). Baseline FACT-Cx (FACT-G + Cx subscale) was associated with survival. Conclusion Despite increased toxicity, CT did not significantly reduce patient QOL when compared with cisplatin alone. Patient-reported QOL measures may be an important prognostic tool in advanced cervix cancer.
Randomized, Controlled Trial of an Easy-to-Read Informed Consent Statement for Clinical Trial Participation: A Study of the Eastern Cooperative Oncology Group
Coyne, Cathy A. , Raich, Peter C., Plomer, Kathy, Dignan, Mark , Wenzel, Lari , Fairclough, Diane L., Schnell, Linda, Quella, Susan K., Cella, David , Xu, Ronghui , Habermann, Thomas M.

Journal of Clinical Oncology | February 27, 2003 | Volume: 21 | Issue: 5 | Pages: 836-842

10.1200/jco.2003.07.022 Get It

Purpose: Studies have documented that the majority of consent documents for medical diagnosis and treatment are written at a reading level above that of the majority of the U.S. population. This study hypothesized that use of an easy-to-read consent statement, when compared with a standard consent statement, will result in higher patient comprehension of the clinical treatment protocol, lower patient anxiety, higher patient satisfaction, and higher patient accrual.Methods: A randomized controlled trial was conducted in 44 institutions that were members or affiliates of three cooperative oncology groups. Institutions were randomly assigned to administer either an easy-to-read consent statement or the standard consent statement to patients being recruited to participate in selected cancer treatment trials. Telephone interviews were conducted with a total of 207 patients to assess study outcomes.Results: Patients in the intervention arm demonstrated significantly lower consent anxiety and higher satisfaction compared with patients in the control arm. Patient comprehension and state anxiety were not affected by the intervention. Accrual rates into the parent studies also did not differ significantly between the two study groups.Conclusion: Clinical trial informed consent statements can be modified to be easier to read without omitting critical information. Patient anxiety and satisfaction can be affected by the consent document. The generalizability of these study results is limited by the characteristics of the patient sample. Ninety percent of the sample were white women, and the mean Rapid Estimate of Adult Literacy in Medicine score was approximately 64, indicating a literacy level at or above the ninth grade.