NCT04494425 · OUTCOME
Progression-Free Survival Assessed by Investigator in the Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-low Population
Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.
- Measure
- MEDIAN
- Unit
- months
- Interval / dispersion
- 95% Confidence Interval
- Time frame
- Response evaluations performed at screening, q6w ± 1 week from randomization for 48 weeks, and then q9w ± 1 week, starting at Week 48 until PD, up to PCD of 18 March 2024 (maximum of approximately 43.85 months)
What was measured
PFS per RECIST 1.1 assessed by Investigator was defined as the time from the date of randomization until the date of PD, as defined or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anticancer therapy prior to progression. PD was defined as at least a 20% increase in the sum of diameters of TLs, taking as reference the smallest previous sum of diameters (nadir), this included the baseline sum if that was the smallest on study. In addition to the relative increase of 20%, the sum must demonstrate an absolute increase of at least 5 mm from nadir. Median PFS was calculated using Kaplan-Meier method and its CI using Brookmeyer-Crowley method.
Analysis population: The HER2-low population included the subset of participants in the ITT population with HER2 IHC 2+/ISH- and IHC 1+ as determined per the IRT data for HER2 IHC expression.
Groups in this outcome
T-DXd
Participants received T-DXd 5.4 mg/kg via IV infusion every 3 weeks until PD, unacceptable toxicity, withdrawal of consent, or another criterion for discontinuation was met.
Chemotherapy
Participants received Investigator's choice single-agent chemotherapy (capecitabine 1000 or 1250 mg/m\^2 orally twice daily for 2 weeks followed by a 1-week rest period in 3-week cycles, paclitaxel 80 mg/m\^2 via IV infusion qw in 3-week cycles or nab-paclitaxel 100 mg/m\^2 via IV infusion qw for 3 weeks followed by 1-week rest period in 4-week cycles) until PD, unacceptable toxicity, withdrawal of consent, or another criterion for discontinuation was met.
| Group | Source count |
|---|---|
| T-DXd | 359 |
| Chemotherapy | 354 |
Reported measurements
Source class 1
| Group | Value | Spread | Lower | Upper | Comment |
|---|---|---|---|---|---|
| T-DXd | 12.8 | Not reported | 11.1 | 13.2 | Not reported |
| Chemotherapy | 7.0 | Not reported | 6.4 | 7.5 | Not reported |
Complete source fields
- classes
- categories
- measurements
- group Id
- OG000
- lower Limit
- 11.1
- upper Limit
- 13.2
- value
- 12.8
- group Id
- OG001
- lower Limit
- 6.4
- upper Limit
- 7.5
- value
- 7.0
- denoms
- counts
- group Id
- OG000
- value
- 359
- group Id
- OG001
- value
- 354
- units
- Participants
- description
- PFS per RECIST 1.1 assessed by Investigator was defined as the time from the date of randomization until the date of PD, as defined or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anticancer therapy prior to progression. PD was defined as at least a 20% increase in the sum of diameters of TLs, taking as reference the smallest previous sum of diameters (nadir), this included the baseline sum if that was the smallest on study. In addition to the relative increase of 20%, the sum must demonstrate an absolute increase of at least 5 mm from nadir. Median PFS was calculated using Kaplan-Meier method and its CI using Brookmeyer-Crowley method.
- dispersion Type
- 95% Confidence Interval
- groups
- description
- Participants received T-DXd 5.4 mg/kg via IV infusion every 3 weeks until PD, unacceptable toxicity, withdrawal of consent, or another criterion for discontinuation was met.
- id
- OG000
- title
- T-DXd
- description
- Participants received Investigator's choice single-agent chemotherapy (capecitabine 1000 or 1250 mg/m\^2 orally twice daily for 2 weeks followed by a 1-week rest period in 3-week cycles, paclitaxel 80 mg/m\^2 via IV infusion qw in 3-week cycles or nab-paclitaxel 100 mg/m\^2 via IV infusion qw for 3 weeks followed by 1-week rest period in 4-week cycles) until PD, unacceptable toxicity, withdrawal of consent, or another criterion for discontinuation was met.
- id
- OG001
- title
- Chemotherapy
- param Type
- MEDIAN
- population Description
- The HER2-low population included the subset of participants in the ITT population with HER2 IHC 2+/ISH- and IHC 1+ as determined per the IRT data for HER2 IHC expression.
- reporting Status
- POSTED
- time Frame
- Response evaluations performed at screening, q6w ± 1 week from randomization for 48 weeks, and then q9w ± 1 week, starting at Week 48 until PD, up to PCD of 18 March 2024 (maximum of approximately 43.85 months)
- title
- Progression-Free Survival Assessed by Investigator in the Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-low Population
- type
- SECONDARY
- unit Of Measure
- months
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Preserved source evidence · Not medical advice
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