Efficacy
POLIVY-R-CHP was superior to R-CHOP, with significantly reduced risk of disease progression, relapse, or death1,*
Watch Expert Perspectives
Specialist views covering a range of POLARIX trial topics
Dr Hervé Tilly,
University of Rouen, France
Prof. Christopher Flowers,
MD, Anderson Cancer Center, University of Texas
Dr Franck Morschhauser,
MD, PhD Professor of Hematology,
University of Lille
Dr Laurie H. Sehn,
MD, MPH Clinical Assistant
Professor with the BC Cancer Agency and University
of British Columbia
POLIVY-R-CHP brings clinically meaningful improvement over R-CHOP1
POLIVY-R-CHP was superior vs the current SoC: there was a 27% reduction of the risk of progression, relapse or death compared
to R-CHOP1
Stratified hazard ratio 0.73; 95% CI, 0.57–0.95; p=0.021
At 24 months, there was a 6.5% improvement in progression-free survival with POLIVY-R-CHP vs R-CHOP1
76.7% (95% CI, 72.7– 80.8) vs. 70.2% (95% CI, 65.8-74.6)1
“Out of every four patients that would potentially relapse on R-CHOP you’re now preventing one of those four patients from relapsing with the POLIVY-R-CHP combination.”
Clinical Assistant Professor with the BC Cancer
Agency and University of British Columbia
Investigator-assessed progression-free survival (PFS)1,2
Results of POLARIX (Clinical cut-off date: June 15, 2022) show a continued benefit of POLIVY treatment through 3 years1,2
Primary endpoint: Investigator-assessed PFS
Investigator-assessed event-free survival (EFS†) — a key secondary endpoint — confirmed the PFS results and hence the clinical benefit demonstrated by POLIVY-R-CHP (HR = 0.75 [95% CI: 0.58, 0.96], p-value = 0.02).1 EFS showed a 25% reduction in the risk of death, progression, relapse, or other events.1,‡
Primary endpoint:
Investigator-assessed PFS
Investigator-assessed event-free survival (EFS†) — a key secondary endpoint — confirmed the PFS results and hence the clinical benefit demonstrated by POLIVY-R-CHP (HR = 0.75 [95% CI: 0.58, 0.96], p-value = 0.02).1 EFS showed a 25% reduction in the risk of death, progression, relapse, or other events.1,‡
Similar efficacy was seen across patient subgroups3,4
Elderly patients ( ≥70 years)3
- In patients aged >70–80 years, efficacy endpoints favoured POLIVY-R-CHP vs. R-CHOP, including progression-free survival as observed in the ITT population3
- The analysis of this elderly population confirms the risk-benefit profile of POLIVY-R-CHP that was observed in the ITT population3
High-risk patients (young patients age ≤60 years, high‐risk aaIPI 2,3)4,§
- No significant differences in efficacy were seen in high-risk patients receiving POLIVY-R-CHP or R-CHOEP4
- Similar efficacy was seen across patient subgroups regardless of aaIPI 2 or 3 status4
§A retrospective analysis based on results from the POLIVY-R-CHP arm of POLARIX and the R-CHOEP arm of the Phase III Mega-CHOEP study4
POLIVY-R-CHP has the potential to decrease the burden of R/R disease1
Patients Receiving Subsequent Lymphoma Therapy (ITT Population)
POLIVY-R-CHP has the potential to decrease the burden of R/R disease1
- Fewer patients with POLIVY-R-CHP had subsequent lines of therapies (17.0% with POLIVY-R-CHP compared to 23.5% with R-CHOP)1
- Amongst those patients, fewer needed intensive high-cost and high-risk therapies such as CAR-T and SCT (47 patients in the R-CHOP arm vs 26 patients in the POLIVY-R-CHP arm)1
In 1L DLBCL, PFS strongly predicts the treatment effects on overall survival5
“We clearly established that progression-free survival is a surrogate for overall survival.”
University of Texas MD Anderson Cancer Center
Safety
How does the safety data for POLIVY-R-CHP compare to that of R-CHOP?
*Stratified hazard ratio 0.73; 95% CI, 0.57–0.95; p=0.021
†EFS defined as the time from randomisation to the earliest occurrence of disease progression/relapse, death due to any cause, initiation of any non-protocol specified anti-lymphoma treatment, or biopsy-confirmed residual disease after treatment completion.
‡Events of progression or relapse were assessed by the investigator. Other events are subsequent therapy for lymphoma or biopsy-confirmed residual disease after treatment.
§A retrospective analysis based on results from the POLIVY-R-CHP arm of POLARIX and the R-CHOEP arm of the Phase III Mega-CHOEP study4
1L=first line; aaIPI=age-adjusted International Prognostic Index; CAR-T=chimeric antigen receptor T-cell therapy; DLBCL=diffuse large B-cell lymphoma; NE=not able to be evaluated; PFS=progression-free survival; POLIVY-R-CHP=polatuzumab vedotin + rituximab, cyclophosphamide, doxorubicin, prednisone; R/R=relapsed or refractory; R-CHOP=rituximab + cyclophosphamide, doxorubicin, vincristine, prednisone; SCT=stem-cell therapy; SoC=standard of care.
References:
- Tilly H, et al. N Engl J Med. 2022;386:351-63.
- Herrera A, et al. Poster presented at: 2022 ASH; December 2022; New Orleans, LA.
- Hu B, et al. Poster presented at: 17th ICML; June 2023; Lugano, Switzerland.
- Lenz G, et al. Poster presented at: 17th ICML; June 2023; Lugano, Switzerland. 2023.
- Shi Q, et al. J Clin Oncol. 2018;36:2593-602.