Toxicity / adverse effects (harms) of chemotherapy · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
1 finding from 1 review
Disease-free survival · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
Concomitant (concurrent) chemoradiotherapy led to lower disease-free survival, concurrent chemoradiotherapy vs radiotherapy… compared with radiotherapy alone (non-resectable tumours); GRADE not reported.
1 finding from 1 review
HR 0.74 [0.67, 0.80]
13 studies
GRADE not reported
Disease-free survival · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
Surgery +/- radiotherapy + (adjuvant) chemotherapy led to lower disease-free survival, adjuvant concurrent chemoradiation vs… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy…; GRADE not reported.
1 finding from 1 review
HR 0.84 [0.72, 0.97]
4 studies
GRADE not reported
Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
Surgery +/- radiotherapy + (adjuvant) chemotherapy probably leads to lower overall survival, adjuvant concurrent chemoradiation vs adjuvant… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).
1 finding from 1 review
Overall survival, induction cisplatin + 5-fluorouracil prior to concurrent chemoradiation (cisplatin) vs concurrent chemoradiation (cisplatin) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction cisplatin + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).
1 finding from 1 review
Locoregional control · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
1 finding from 1 review
Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
Concomitant (concurrent) chemoradiotherapy probably leads to lower overall survival, concurrent chemoradiotherapy vs radiotherapy alone… compared with radiotherapy alone (non-resectable tumours) (moderate certainty).
1 finding from 1 review
Disease-free survival · Adults with oral cavity or oropharyngeal cancer
The review found no eligible studies for this question.
1 finding from 1 review
Locoregional recurrence · Adults with oral cavity or oropharyngeal cancer
The review found no eligible studies for this question.
1 finding from 1 review
Adverse events associated with treatment · Adults with oropharyngeal cancer
1 finding from 1 review
Adverse events: grade 2+ treatment-related events similar (31/34 radiotherapy vs 33/34 surgery; RR 0.94, 0.83 to 1.06); more hearing loss/neutropenia/constipation/tinnitus with radiotherapy, more oral bleeding/trismus…
1 study · 68 participants
Very low
Total mortality · Adults with oral cavity or oropharyngeal cancer
It is very uncertain whether surgery plus radiotherapy changes total mortality compared with radiotherapy alone (very low certainty).
1 finding from 1 review
Total mortality · Adults with oral cavity cancer
1 finding from 1 review
Total mortality: 2 trials reported HR but could not be pooled (different surgical procedures); neither indicated a difference (BHNCSG 1998 HR 1.14, 0.70 to 1.86; Bier 1994 HR 0.87, 0.41 to 1.83); 252 participants (2…
2 studies · 252 participants
Very low
Adverse events associated with treatment · Adults with oral cavity cancer (tongue or floor of mouth) and clinically negative neck nodes
Elective neck dissection (at time of primary tumour resection) probably leads to higher adverse events associated with treatment compared with therapeutic (delayed) neck dissection (moderate certainty).
1 finding from 1 review
Recurrence · Adults with oral cavity or oropharyngeal cancer
1 finding from 1 review
Recurrence: Garrel 2020 reported that the number of patients with recurrences in both arms was almost identical; unable to use the data (variable follow-up); 279 participants (1 RCT).
1 study · 279 participants
Very low
Disease-free survival · Adults with oral cavity or oropharyngeal cancer
The review found no eligible studies for this question.
1 finding from 1 review
Locoregional recurrence · Adults with oral cavity or oropharyngeal cancer
Sentinel node biopsy (neck dissection only if biopsy positive) showed no clear difference in locoregional recurrence compared with elective neck dissection (low certainty).
1 finding from 1 review
Locoregional recurrence · Adults with oral cavity or oropharyngeal cancer
1 finding from 1 review
Total mortality · Adults with oropharyngeal cancer
Surgery showed no clear difference in total mortality compared with radiotherapy alone (low certainty).
1 finding from 1 review
Recurrence · Adults with oral cavity cancer (tongue or floor of mouth) and clinically negative neck nodes
Elective neck dissection (at time of primary tumour resection) probably leads to lower recurrence compared with therapeutic (delayed) neck dissection (moderate certainty).
1 finding from 1 review
Locoregional recurrence · Adults with oral cavity cancer
The review found no eligible studies for this question.
1 finding from 1 review