Phase 1
Completed N=7
Trastuzumab Deruxtecan With Nivolumab in Advanced Breast and Urothelial Cancer
Source: ClinicalTrials.gov NCT03523572 ↗Enrolled (actual)
7
Serious AEs
47.7%
Results posted
Jan 2025
Primary outcomePrimary: Number of Participants With Dose-Limiting Toxicities at 3.2 mg/kg and 5.4 mg/kg Dose Level in Participants With HER2-expressing Advanced Breast Cancer in Dose Escalation — 0; 0 Participants
Summary
This is a study of trastuzumab deruxtecan for the treatment of HER2-positive unresectable or metastatic breast cancer following two or more prior anti-HER2 based regimens.
Participants will receive this study drug along with a cancer drug, an immune checkpoint inhibitor, anti-PD1, called nivolumab.
The study will be done in two parts:
* Part 1 is to identify the recommended dose to use for treatment.
* Part 2 is to find out how well the combination works, and how safe and tolerable it is.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Number of Participants With Dose-Limiting Toxicities at 3.2 mg/kg and 5.4 mg/kg Dose Level in Participants With HER2-expressing Advanced Breast Cancer in Dose Escalation |
0; 0 | — |
| PRIMARY Percentage of Participants With Objective Response Rate (ORR) Based on Independent Central Review in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
25.0; 65.6; 50.0; 36.7; 50.0 | — |
| SECONDARY Duration of Response (DoR) in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
NA; 5.5; 13.1; NA; 20.2; 5.8 | — |
| SECONDARY Percentage of Participants With Disease Control Rate (DCR) in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
50; 93.8; 75.0; 76.7; 75.0; 50 | — |
| SECONDARY Progression-Free Survival (PFS) in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
11.6; 7.0; 6.9; NA; 18.0; 7.8 | — |
| SECONDARY Time to Response (TTR) Based on Independent Central Review in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
1.41; 1.61; 3.73; 1.87; 3.25 | — |
| SECONDARY Overall Survival (OS) in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
NA; NA; 19.5; 11.0; NA | — |
| SECONDARY Percentage of Participants With Objective Response Rate (ORR) Based on Investigator Assessment in Participants With HER2-expressing Advanced Breast Cancer or Urothelial Cancer |
25; 71.9; 43.8; 40.0; 25.0 | — |
| SECONDARY Number of Participants With Treatment Emergent Adverse Events (TEAEs) |
4; 3; 29; 16; 30; 4 | — |
Eligibility Criteria
Inclusion Criteria
- Is the age of majority (adulthood) in their country
- Has an Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 to 1
- Has pathologically documented breast cancer or urothelial cancer that is unresectable or metastatic, and refractory to or intolerant of existing therapy(ies) known to provide clinical benefit, and as specified in each study cohort
- Has an adequate archival tumor sample available for the central laboratory to determine eligibility to participate
- Has at least 1 measurable lesion per RECIST version 1.1
- Has cardiac, bone marrow, kidney, liver, blood and clotting test results required per protocol
- Has had an adequate washout period before enrollment since previous surgery and other treatment
- If reproduction is possible, agrees to use protocol-defined methods of contraception (or completely abstain from heterosexual intercourse) from screening to at least 7 months for females and males after the last dose of study drug
- Agrees to avoid harvesting sperm or ova for any reason from screening to at least 7 months for females and males after the last dose of study drug
- Has a life expectancy of at least 3 months
Exclusion Criteria
- Has received prior treatment with nivolumab or trastuzumab deruxtecan
- Has medical history of myocardial infarction (MI) within 6 months before enrollment, symptomatic congestive heart failure (CHF) (New York Heart Association classes II-IV). Troponin levels above upper limit of normal (ULN) at screening (as defined by the manufacturer) and without any MI-related symptoms should have a cardiologic consultation before enrollment to rule out MI.
- Has a corrected QT interval by Fredericia (QTcF) prolongation to > 470 ms (females) or > 450 ms (males) based on an average of the screening triplicate 12-lead electrocardiogram
- Has history of non-infectious interstitial lung disease (ILD/pneumonitis) (that required steroids), has ILD/pneumonitis currently, or it cannot be ruled out by imaging at screening
- Has a condition (other than active autoimmune disease) that requires systemic treatment with either corticosteroids (>10 mg daily prednisone equivalent) or other immunosuppressive medications within 14 days of starting study treatment
- Is pregnant or breastfeeding, or planning to become pregnant
Data sourced from ClinicalTrials.gov (NCT03523572). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.