PMID- 33531869 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220420 IS - 1428-2526 (Print) IS - 1897-4309 (Electronic) IS - 1428-2526 (Linking) VI - 24 IP - 4 DP - 2020 TI - Tolerability and outcome of sunitinib by giving 4/2 schedule versus 2/1 schedule in metastatic renal cell carcinoma patients: a prospective randomized multi-centric Egyptian study. PG - 221-228 LID - 10.5114/wo.2020.102802 [doi] AB - INTRODUCTION: Sunitinib is a standard of care first line treatment for patients with metastatic renal cell carcinoma (RCC). Sunitinib standard dose is 50 mg once daily for 4 consecutive weeks followed by 2 weeks' off (4/2 schedule). Long-term and high exposure to this medication lead to severe adverse events (AEs); therefore, this trial was done to find the best schedule which gives the best outcome with minimal toxicity. MATERIALS AND METHODS: Seventy patients were randomly assigned into 2 groups, then received 50 mg/day of sunitinib. Group 1 (40 patients) received sunitinib for 4 consecutive weeks followed by 2 weeks off (4/2 schedule) while 30 patients were admitted to group 2 with 2 weeks on and 1 week off (2/1 schedule). RESULTS: All patients (100%) had significantly higher AEs on schedule 4/2 vs. 73.3% on schedule 2/1 (p = 0.001). Furthermore, the grade 3 AEs on schedule 2/1 were significantly lower than those on schedule 4/2 (26.7% vs. 82.5%) respectively (p = 0.001), such as fatigue, diarrhea, hypertension, hand foot syndrome (HFS) and mucositis. Progression-free survival (PFS) rate was significantly higher in 2/1 schedule (60.9% vs. 38.6%) than in 4/2 schedule (p < 0.008). Multivariate analysis suggested that: age > 60 years, poor International Metastatic RCC Database Consortium (IMDC) risk category, tumor size > 10 cm and treatment schedule (group 1) were poor prognostic factors of PFS. CONCLUSIONS: Our study supported the use of 2/1 schedule of sunitinib in patients with metastatic RCC because of lower toxicity profile and better efficacy with improved PFS in comparison to 4/2 schedule. CI - Copyright (c) 2020 Termedia. FAU - Abdelaziz, Lobna A AU - Abdelaziz LA AD - Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - Taha, Heba F AU - Taha HF AD - Medical Oncology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - Ali, Magid M AU - Ali MM AD - Urology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt. FAU - Abdelgawad, Marwa I AU - Abdelgawad MI AD - Clinical Oncology Department, Faculty of Medicine, Assiut University, Assiut, Egypt. FAU - Elwan, Amira AU - Elwan A AD - Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt. LA - eng PT - Journal Article DEP - 20210104 PL - Poland TA - Contemp Oncol (Pozn) JT - Contemporary oncology (Poznan, Poland) JID - 101233223 PMC - PMC7836283 OTO - NOTNLM OT - 2/1 schedule OT - 4/2 schedule OT - adverse events OT - metastatic renal cell carcinoma OT - outcome OT - sunitinib COIS- The authors declare no conflict of interest. EDAT- 2021/02/04 06:00 MHDA- 2021/02/04 06:01 PMCR- 2020/01/01 CRDT- 2021/02/03 05:58 PHST- 2020/08/29 00:00 [received] PHST- 2020/11/02 00:00 [accepted] PHST- 2021/02/03 05:58 [entrez] PHST- 2021/02/04 06:00 [pubmed] PHST- 2021/02/04 06:01 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - 43068 [pii] AID - 10.5114/wo.2020.102802 [doi] PST - ppublish SO - Contemp Oncol (Pozn). 2020;24(4):221-228. doi: 10.5114/wo.2020.102802. Epub 2021 Jan 4.