Property:Drop-out reasons
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B
Braik et al. (2014): Randomized trial of vitamin B6 for preventing hand-foot syndrome from capecitabine chemotherapy +
NA +
Brown et al. (2019): Effect of High-Dose vs Standard-Dose Vitamin D3 Supplementation on Body Composition among Patients with Advanced or Metastatic Colorectal Cancer: A Randomized Trial +
11 CT images unusable, 8 CT images not available +
Brown et al. (2019): Effect of High-Dose vs Standard-Dose Vitamin D3 Supplementation on Body Composition among Patients with Advanced or Metastatic Colorectal Cancer: A Randomized Trial +
11 CT images unusable, 4 CT images not available +
Büntzel et al. (2010): Limited effects of selenium in the prevention of radiation-associated toxicities - results of a randomized study in head neck cancer patients +
NA +
Büntzel et al. (2010): Limited effects of selenium in the prevention of radiation-associated toxicities - results of a randomized study in head neck cancer patients +
NA +
Büntzel et al. (2010): Selenium Substitution During Radiotherapy of Solid Tumours - Laboratory Data from Two Observation Studies in Gynaecological and Head and Neck Cancer Patients +
NI +
Büntzel et al. (2010): Selenium Substitution During Radiotherapy of Solid Tumours - Laboratory Data from Two Observation Studies in Gynaecological and Head and Neck Cancer Patients +
NI +
C
Campos et al. (2011): Guarana (Paullinia cupana) Improves Fatigue in Breast Cancer Patients Undergoing Systemic Chemotherapy +
Discontinued guarana: n = 2
- Palpitations: n = 1
- Patient discontinued medication due to herpes zoster: n = 1
Excluded for forgetting to take more than 1 pill: n = 5
Note: Time of Drop-Outs unclear, since all patients are noted to start placebo but drop-out occured for guarana +
Campos et al. (2011): Guarana (Paullinia cupana) Improves Fatigue in Breast Cancer Patients Undergoing Systemic Chemotherapy +
Discontinued placebo: n = 2,
- Rash: n = 1,
- Palpitations: n = 1
Excluded for forgetting to take more than 1 pill: n = 6
Note: Time of Drop-Outs unclear, since all patients are noted to start guarana but drop-out occured for placebo +
Cavallini et al. (2005): Acetyl-L-carnitine plus propionyl-L-carnitine improve efficacy of sildenafil in treatment of erectile dysfunction after bilateral nerve-sparing radical retropubic prostatectomy +
Protocol violations +
Cavallini et al. (2005): Acetyl-L-carnitine plus propionyl-L-carnitine improve efficacy of sildenafil in treatment of erectile dysfunction after bilateral nerve-sparing radical retropubic prostatectomy +
Protocol violation n=2, Insufficient therapeutic effect n=2 +
Cavallini et al. (2005): Acetyl-L-carnitine plus propionyl-L-carnitine improve efficacy of sildenafil in treatment of erectile dysfunction after bilateral nerve-sparing radical retropubic prostatectomy +
Protocol violations n=4, Insufficient therapeutic effect n=1 +
Chan et al. (2011): Nutritional supplements, COX-2 and IGF-1 expression in men on active surveillance for prostate cancer +
Insufficient RNA quality or quantity (n=6) +
Chan et al. (2011): Nutritional supplements, COX-2 and IGF-1 expression in men on active surveillance for prostate cancer +
Insufficient RNA quality or quantity (n=7) +
Chan et al. (2011): Nutritional supplements, COX-2 and IGF-1 expression in men on active surveillance for prostate cancer +
Insufficient RNA quality or quantity (n=2) +
Chung et al. (2016): Randomized Trial of Vitamin C/E Complex for Prevention of Radiation- Induced Xerostomia in Patients with Head and Neck Cancer +
Lost to follow-up 1 month post-radiotherapy (n=2, refusal/poor compliance)
Lost to follow-up 6 month post-radiotherapy (n=4, 2x refusal/poor compliance), 2x disease recurrence) +
Chung et al. (2016): Randomized Trial of Vitamin C/E Complex for Prevention of Radiation- Induced Xerostomia in Patients with Head and Neck Cancer +
Lost to follow-up 6 month post-radiotherapy (n=1, refusal) +
Cohen et al. (2018): Favorable Effects of a Ketogenic Diet on Physical Function, Perceived Energy, and Food Cravings in Women with Ovarian or Endometrial Cancer: A Randomized, Controlled Trial +
Withdrew due to scheduling conflicts (n=6); not separated by arm: no longer wishing to comply with dietary requirements (n=3); cancer recurrence (n=3); death (n=2) +
Cohen et al. (2018): Favorable Effects of a Ketogenic Diet on Physical Function, Perceived Energy, and Food Cravings in Women with Ovarian or Endometrial Cancer: A Randomized, Controlled Trial +
Withdrew due to scheduling conflicts (n=6); not separated by arm: no longer wishing to comply with dietary requirements (n=3); cancer recurrence (n=3); death (n=2) +
Crew et al. (2012): Phase IB Randomized, Double-Blinded, Placebo-Controlled, Dose Escalation Study of Polyphenon E in Women with Hormone Receptor–Negative Breast Cancer +
Nonadherent (did not complete 6 months of study drug) (n = 2),but completed their 6-month study evaluations; DLT (dose-limiting toxicity) (n = 3), but completed their 6-month study evaluations
= completed follow-up n=11 +