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NCT01702558: TRAXHER2

A Combination Study of Kadcyla (Trastuzumab Emtansine) and Capecitabine in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Metastatic Breast Cancer (mBC) or HER2-Positive Locally Advanced/Metastatic Gastric Cancer (LA/mGC)

Terminated Phase 2 Results posted Last updated 22 January 2021
What this trial tests

Phase 2 trial testing Capecitabine in Breast Cancer in 182 participants. Terminated before completion.

Timeline
3 December 2012
Primary endpoint
31 May 2017
31 May 2017

Quick facts

Lead sponsorHoffmann-La Roche
PhasePhase 2
StatusTerminated
Study typeINTERVENTIONAL
Allocationnon randomized
Designsequential
Maskingnone
Primary purposetreatment
Enrollment182
Start date3 December 2012
Primary completion31 May 2017
Estimated completion31 May 2017
Sites40 locations across France, Italy, Slovakia, Russia, Greece, Serbia, Germany, Argentina

Drugs / interventions tested

Conditions studied

Sponsor

Hoffmann-La Roche — full company profile →

Who can join

18 and older, any sex, with Breast Cancer or Gastric Cancer. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Phase 1 (mBC): Percentage of Participants With Dose-Limiting Toxicities (DLTs) Primary · Continuously during Cycle 1 (up to 3 weeks)

A DLT was defined as any one of the following study treatment related toxicities: Uncomplicated Grade 4 thrombocytopenia that does not recover before Day 21; thrombocytopenia complicated with clinically significant bleeding requiring medical intervention; Grade 4 neutropenia lasting more than (\>) 7 consecutive days; febrile neutropenia with absolute neutrophil count (ANC) less than (\<) 1000 cells/millimeter cube (mm\^3); Grade greater than or equal to (\>/=) 3 diarrhea or Grade 3 hand-foot syndrome (in absence of dihydropyrimidine dehydrogenase \[DPD\] deficiency only for DL 1); any other Gr

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape33.3
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape0.0
Phase 1 (mBC): Maximum Tolerated Dose (MTD) of Capecitabine When Combined With Trastuzumab Emtansine (3.6 mg/kg Every 3 Weeks) Primary · Continuously during Cycle 1 (up to 3 weeks)

MTD was defined as the dose level for which the probability of DLT is equal to a protocol-specified target probability. A DLT was defined as any one of the following study treatment related toxicities: Uncomplicated Grade 4 thrombocytopenia that does not recover before Day 21; thrombocytopenia complicated with clinically significant bleeding requiring medical intervention; Grade 4 neutropenia lasting \>7 consecutive days; febrile neutropenia with ANC \<1000 cells/mm\^3; Grade \>/=3 diarrhea or Grade 3 hand-foot syndrome (in absence of DPD deficiency only for DL 1); any other Grade \>/=3 toxici

GroupValue95% CI
Phase 1 (mBC) Cohort 1: T-DM1 + Cape700
Phase 2 (mBC): Percentage of Participants With Best Overall Response (BOR) as Assessed by the Investigator According to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) Primary · Baseline until CR/PR, consent withdrawal, or study end whichever occurred first (up to approximately 2.5 years overall)

Tumor response was assessed by the investigator according to RECIST v1.1. BOR was defined as percentage of participants with a complete response (CR) or partial response (PR) that was confirmed by repeat assessments \>/=4 weeks after initial documentation. CR was defined as the disappearance of all target lesions (TLs) and non-TLs; short axis (SA) reduction to \<10 millimeters (mm) for nodal TLs/non-TLs; and no new lesions. PR was defined as \>/=30% decrease in sum of diameters (SoD) of TLs, taking as reference the baseline SoD; no progression in non-TLs; and no new lesions. The 90% confidence

GroupValue95% CI
Phase 2 (mBC): T-DM1 + Cape44.435.0 – 54.2
Phase 2 (mBC): T-DM136.327.3 – 46.0
Phase 1 (LA/mGC): Percentage of Participants With DLTs Primary · Continuously during 3 weeks

A DLT was defined as any one of the following study treatment related toxicities: Uncomplicated Grade 4 thrombocytopenia that does not recover before Day 21; thrombocytopenia complicated with clinically significant bleeding requiring medical intervention; Grade 4 neutropenia lasting \>7 consecutive days; febrile neutropenia with ANC \<1000 cells/mm\^3; Grade \>/=3 diarrhea or Grade 3 hand-foot syndrome; any other Grade \>/=3 toxicity prohibiting start of Cycle 2; Grade 2 toxicity requiring treatment interruption for \>14 days; \<14 full doses of capecitabine; Cycle 2 dose level \<100%.

GroupValue95% CI
Phase 1 (LA/mGC) Cohort 2 (DL -1): T-DM1 + Cape0.0
Phase 1 (LA/mGC): MTD of Capecitabine When Combined With Trastuzumab Emtansine (2.4 mg/kg QW) Primary · Continuously during 3 weeks

MTD was defined as the dose level for which the probability of DLT is equal to a protocol-specified target probability. A DLT was defined as any one of the following study treatment related toxicities: Uncomplicated Grade 4 thrombocytopenia that does not recover before Day 21; thrombocytopenia complicated with clinically significant bleeding requiring medical intervention; Grade 4 neutropenia lasting \>7 consecutive days; febrile neutropenia with ANC \<1000 cells/mm\^3; Grade \>/=3 diarrhea or Grade 3 hand-foot syndrome; any other Grade \>/=3 toxicity prohibiting start of Cycle 2; Grade 2 toxi

GroupValue95% CI
Phase 1 (LA/mGC) Cohort 2 (DL -1): T-DM1 + Cape700
Phase 1 (mBC): Percentage of Participants With BOR as Assessed by the Investigator According to RECIST v1.1 Secondary · Baseline until CR/PR, consent withdrawal, or study end whichever occurred first (up to approximately 3.5 years overall)

Tumor response was assessed by the investigator according to RECIST v1.1. BOR in Phase 1 was defined as percentage of participants with a CR or PR. CR was defined as the disappearance of all TLs and non-TLs; SA reduction to \<10 mm for nodal TLs/non-TLs; and no new lesions. PR was defined as \>/=30% decrease in SoD of TLs, taking as reference the baseline SoD; no progression in non-TLs; and no new lesions.

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape83.3
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape100.0
Phase 1 (mBC): Serum Concentration of Trastuzumab Emtansine Secondary · Pre-trastuzumab emtansine dose (0 hour [h]) on Day 1 Cycle 2; 15-30 minutes (min) after end of trastuzumab emtansine infusion (maximum infusion duration = 90 min) on Day 2 Cycle 1 and Day 1 Cycle 2 (cycle length=21 days)
Cycle 1, Post-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape81.3± 13.3
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape78.6± 14.6
Cycle 2, Pre-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape1.17± 1.25
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape2.1± 1.49
Cycle 2, Post-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape70.5± 13.3
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape78.5± 14.9
Phase 1 (mBC): Serum Concentration of Trastuzumab Secondary · Pre-trastuzumab emtansine dose (0 h) on Day 1 Cycle 2; 15-30 min after end of trastuzumab emtansine infusion (maximum infusion duration = 90 min) on Day 2 Cycle 1 and Day 1 Cycle 2 (cycle length=21 days)

Trastuzumab was derived from trastuzumab emtansine.

Cycle 1, Post-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape89.1± 24.37
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape92.9± 22.13
Cycle 2, Pre-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape11.8± 13.28
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape14.0± 12.53
Cycle 2, Post-dose
GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape74.8± 18.89
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape94.7± 24.60
Phase 1 (mBC): Maximum Observed Plasma Concentration (Cmax) of Capecitabine Secondary · Pre-capecitabine dose (0 h) and 0.5, 1, 1.5, 2, 2.5, 4, and 6 h post-capecitabine dose on Day 1 Cycle 1

Cmax for Capecitabine was estimated from plasma concentration versus time data using non-compartmental methods of analysis. Reported dispersion values are for percent coefficient of variation (CV%) and not for standard deviation.

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape2990± 38.4
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape5652± 91.1
Phase 1 (mBC): Area Under the Plasma Concentration-Time Curve From Time Zero to Infinity (AUC[0-inf]) of Capecitabine Secondary · Pre-capecitabine dose (0 h) and 0.5, 1, 1.5, 2, 2.5, 4, and 6 h post-capecitabine dose on Day 1 Cycle 1

AUC(0-inf) is the measure of total drug exposure and is dependent on the total amount of drug absorbed. AUC(0-inf) for capecitabine was estimated from plasma concentration versus time data using non-compartmental methods of analysis. Reported dispersion values are for CV% and not for standard deviation.

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape3973± 38.0
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape5440± 57.7
Phase 1 (mBC): Plasma Terminal Half-Life (t1/2) of Capecitabine Secondary · Pre-capecitabine dose (0 h) and 0.5, 1, 1.5, 2, 2.5, 4, and 6 h post-capecitabine dose on Day 1 Cycle 1

Plasma terminal half-life is the time measured for the plasma drug concentration to decrease by one half during the elimination phase of the drug. t1/2 for capecitabine was estimated from plasma concentration versus time data using non-compartmental methods of analysis. Reported dispersion values are for CV% and not for standard deviation.

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape0.70± 131.9
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape0.39± 38.8
Phase 1 (mBC): Cmax of 5-Fluorouracil (Metabolite of Capecitabine) Secondary · Pre-capecitabine dose (0 h) and 0.5, 1, 1.5, 2, 2.5, 4, and 6 h post-capecitabine dose on Day 1 Cycle 1

5-fluorouracil is a metabolite of capecitabine. Cmax for 5-fluorouracil was estimated from plasma concentration versus time data using non-compartmental methods of analysis. Reported dispersion values are for CV% and not for standard deviation.

GroupValue95% CI
Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape148± 49.9
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape143± 45.6

Adverse events — posted to ClinicalTrials.gov

Time frame: Phase 1: Baseline up to 42 days after last dose (up to approximately 1.5 years overall); Phase 2: Baseline up to 42 days after last dose (up to approximately 2.5 years overall). Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Phase 1 (mBC) Cohort 1 (DL 1): T-DM1 + Cape
Serious: 0/7 (0%)
Deaths: 4/7
Phase 1 (mBC) Cohort 1 (DL -1): T-DM1 + Cape
Serious: 2/5 (40%)
Deaths: 3/5
Phase 1 (LA/mGC) Cohort 2 (DL -1): T-DM1 + Cape
Serious: 4/6 (67%)
Deaths: 3/6
Phase 2 (mBC): T-DM1 + Cape
Serious: 11/82 (13%)
Deaths: 18/82
Phase 2 (mBC): T-DM1
Serious: 10/78 (13%)
Deaths: 21/78

Serious adverse events (36 terms)

ReactionSystemPhase 1 (mBC) Cohort 1 (DL…Phase 1 (mBC) Cohort 1 (DL…Phase 1 (LA/mGC) Cohort 2 …Phase 2 (mBC): T-DM1 + CapePhase 2 (mBC): T-DM1
Abdominal painGastrointestinal disorders
Muscular weaknessMusculoskeletal and connective tissue disorders
Pathological fractureMusculoskeletal and connective tissue disorders
Brain oedemaNervous system disorders
Cerebral cystNervous system disorders
Radiation necrosisInjury, poisoning and procedural complications
Myocardial infarctionCardiac disorders
DiarrhoeaGastrointestinal disorders
Device related sepsisInfections and infestations
Tumour haemorrhageNeoplasms benign, malignant and unspecified (incl cysts and polyps)
Renal colicRenal and urinary disorders
Tumour excisionSurgical and medical procedures
Colitis ischaemicGastrointestinal disorders
Intestinal haematomaGastrointestinal disorders
Mesenteric vein thrombosisGastrointestinal disorders
VomitingGastrointestinal disorders
GastroenteritisInfections and infestations
Bacterial sepsisInfections and infestations
Device related infectionInfections and infestations
Upper respiratory tract infectionInfections and infestations
Urinary tract infectionInfections and infestations
Wound sepsisInfections and infestations
HaematuriaRenal and urinary disorders
AnuriaRenal and urinary disorders
Pleural effusionRespiratory, thoracic and mediastinal disorders
Other adverse events (231 terms — click to expand)

ReactionSystemPhase 1 (mBC) Cohort 1 (DL…Phase 1 (mBC) Cohort 1 (DL…Phase 1 (LA/mGC) Cohort 2 …Phase 2 (mBC): T-DM1 + CapePhase 2 (mBC): T-DM1
ThrombocytopeniaBlood and lymphatic system disorders
Aspartate aminotransferase increasedInvestigations
NauseaGastrointestinal disorders
Alanine aminotransferase increasedInvestigations
AstheniaGeneral disorders
Palmar-plantar erythrodysaesthesia syndromeSkin and subcutaneous tissue disorders
VomitingGastrointestinal disorders
Gamma-glutamyltransferase increasedInvestigations
PyrexiaGeneral disorders
EpistaxisRespiratory, thoracic and mediastinal disorders
Blood alkaline phosphatase increasedInvestigations
Platelet count decreasedInvestigations
NeutropeniaBlood and lymphatic system disorders
AnaemiaBlood and lymphatic system disorders
ArthralgiaMusculoskeletal and connective tissue disorders
FatigueGeneral disorders
Decreased appetiteMetabolism and nutrition disorders
Blood lactate dehydrogenase increasedInvestigations
ConstipationGastrointestinal disorders
HeadacheNervous system disorders
DiarrhoeaGastrointestinal disorders
Abdominal painGastrointestinal disorders
MyalgiaMusculoskeletal and connective tissue disorders
Abdominal pain upperGastrointestinal disorders
Dry mouthGastrointestinal disorders
Musculoskeletal painMusculoskeletal and connective tissue disorders
CoughRespiratory, thoracic and mediastinal disorders
Blood bilirubin increasedInvestigations
Lacrimation increasedEye disorders
Muscle spasmsMusculoskeletal and connective tissue disorders
Pain in extremityMusculoskeletal and connective tissue disorders
ChillsGeneral disorders
ParaesthesiaNervous system disorders
AlopeciaSkin and subcutaneous tissue disorders
StomatitisGastrointestinal disorders
TachycardiaCardiac disorders
Upper respiratory tract infectionInfections and infestations
HyperglycaemiaMetabolism and nutrition disorders
Back painMusculoskeletal and connective tissue disorders
Oedema peripheralGeneral disorders

Most-reported serious reactions: Abdominal pain, Muscular weakness, Pathological fracture, Brain oedema, Cerebral cyst, Radiation necrosis, Myocardial infarction, Diarrhoea.

Data from ClinicalTrials.gov NCT01702558 adverse events section.

Sponsor's own description

This multicenter study will assess the maximum tolerated dose (MTD) of capecitabine in combination with Kadcyla (trastuzumab emtansine) in participants with HER2-positive mBC or HER2-positive LA/mGC using a Phase 1 design, followed by a randomized, open-label Phase 2 part to explore the efficacy and safety of the combination of Kadcyla and capecitabine compared with Kadcyla alone in participants with mBC. The anticipated time on study treatment is until disease progression, intolerable toxicity, withdrawal of consent, or study end.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Trastuzumab emtansine: mechanisms of action and drug resistance.
    Barok M, Joensuu H, Isola J. · · 2014 · cited 406× · PMID 24887180 · DOI 10.1186/bcr3621
  2. The promise and challenges of combination therapies with antibody-drug conjugates in solid tumors.
    Wei Q, Li P, Yang T, Zhu J, et al · · 2024 · cited 102× · PMID 38178200 · DOI 10.1186/s13045-023-01509-2
  3. Perspectives of HER2-targeting in gastric and esophageal cancer.
    Gerson JN, Skariah S, Denlinger CS, Astsaturov I. · · 2017 · cited 68× · PMID 28387541 · DOI 10.1080/13543784.2017.1315406
  4. Trastuzumab emtansine: the first targeted chemotherapy for treatment of breast cancer.
    Peddi PF, Hurvitz SA. · · 2013 · cited 50× · PMID 23469968 · DOI 10.2217/fon.13.7
  5. Beyond the Paclitaxel and Vinca Alkaloids: Next Generation of Plant-Derived Microtubule-Targeting Agents with Potential Anticancer Activity.
    Zhang D, Kanakkanthara A. · · 2020 · cited 48× · PMID 32610496 · DOI 10.3390/cancers12071721
  6. Efficacy and Safety of Trastuzumab Emtansine Plus Capecitabine vs Trastuzumab Emtansine Alone in Patients With Previously Treated ERBB2 (HER2)-Positive Metastatic Breast Cancer: A Phase 1 and Randomized Phase 2 Trial.
    Cortés J, Diéras V, Lorenzen S, Montemurro F, et al · · 2020 · cited 37× · PMID 32584367 · DOI 10.1001/jamaoncol.2020.1796
  7. Role of trastuzumab emtansine in the treatment of HER2-positive breast cancer.
    Oostra DR, Macrae ER. · · 2014 · cited 37× · PMID 25114588 · DOI 10.2147/bctt.s67297
  8. Personalized medicine in gastric cancer: Where are we and where are we going?
    Jácome AA, Coutinho AK, Lima EM, Andrade AC, et al · · 2016 · cited 36× · PMID 26811654 · DOI 10.3748/wjg.v22.i3.1160

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