Comparison · NCT01687413-04deafab
Radiotherapy vs Radiotherapy, Cisplatin: Rate of Distant Metastasis
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Radiotherapy vs Radiotherapy, Cisplatin: Rate of Distant Metastasis. Trial comparisons, record NCT01687413-04deafab. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01687413-04deafab
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.0741 | 0.0206 | 0.234 | wilson | |
| Risk in group 2 | 0 | 0 | 0.259 | wilson | |
| Risk difference, group 1 minus group 2 | 0.0741 | -0.19 | 0.234 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | log | a group has no participants with the outcome | |||
| Odds ratio, group 1 over group 2 | log | a cell of the two-by-two table is zero | |||
| Number needed to treat, for one more participant with the outcome on Radiotherapy than on Radiotherapy, Cisplatin | 13.5 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Radiotherapy | * Patients undergo postoperative IMRT once daily, 5 days a week, for 6 weeks. The prescribed radiotherapy dose will be 60 Gy in 2 Gy once-daily fraction size (total of 30 fractions).~* Patients can consent to participate in either the randomized (physician chooses radiotherapy arm or radiotherapy \& cisplatin arm) or non-randomized (patient chooses radiotherapy arm or radiotherapy \& cisplatin arm) pathways | 2 | 27 | OG000 |
| Group 2 | Radiotherapy, Cisplatin | * Patients undergo postoperative IMRT once daily, 5 days a week, for 6 weeks. The prescribed radiotherapy dose will be 60 Gy in 2 Gy once-daily fraction size (total of 30 fractions)~* Patients also receive cisplatin 40 mg/m2 IV on Days 1, 8, 15, 22, 29, and 36 of radiation therapy (6 doses for a total of 240 mg/m2).~* Patients can consent to participate in either the randomized (physician chooses radiotherapy arm or radiotherapy \& cisplatin arm) or non-randomized (patient chooses radiotherapy arm or radiotherapy \& cisplatin arm) pathways | 0 | 11 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Rate of Distant Metastasis
- Description
- Assessed by biopsy or imaging-detected recurrent disease at sites away from the original primary and cervical zone.
- Time frame
- Up to 2 years
- Population
Source ClinicalTrials.gov
Trial
- Title
- Post Operative Adjuvant Therapy De-intensification Trial for Human Papillomavirus-related, p16+ Oropharynx Cancer
- NCT number
- NCT01687413
- Phases
- PHASE3
- Conditions
- Oropharyngeal Neoplasms
- Interventions
- Intensity-modulated radiation therapy (IMRT), Cisplatin
- Lead sponsor
- Washington University School of Medicine
- Results first posted
- 2020-11-10
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01687413?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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