Robust and Consistent Real-World Results With NINLARO® (ixazomib)
Four real-world studies, including REMIX, which is the largest prospective study of NINLARO in the real-world setting, support the effectiveness and safety of the all-oral NINLARO regimen* in patients with relapsed/refractory multiple myeloma.1-6
*The NINLARO regimen included NINLARO + lenalidomide + dexamethasone.
Real-world evidence (RWE) can complement data from clinical trials
Up to 72% of real-world patients with relapsed and/or refractory multiple myeloma receiving routine care in the United States do not meet the eligibility criteria for clinical trials.7 RWE can be important in clinical decision-making as it can supplement data generated from clinical trials.3,8
RWE is clinical evidence derived from analysis of real-world data
RWE should be considered as complementary to data generated from RCTs.9
- RCTs are designed to demonstrate whether a treatment can improve predefined patient outcomes under ideal, carefully monitored conditions (known as “efficacy”)8
- RWE assesses whether the results from RCTs are translatable to diverse, real-life settings and broader patient populations (known as “effectiveness”)8
Learn more about strengths and limitations of RWE
Strengths and weaknesses of RWE
Strengths9-11
RWE often has broader generalizability vs RCTs, reflecting the heterogeneity of patients treated in real-world clinical practice, including patients with:
- Comorbidities
- Advanced age
- Reduced performance status
RWE provides information on real-world treatment patterns
- Dosing
- Treatment duration
- Resource use
Data can validate/complement results from RCTs in real-world clinical practice
- Effectiveness
- Tolerability
- Safety profile
Weaknesses8,9,12
Heterogeneous datasets
- Arising from heterogeneous patient population and a variety of dataset resources, e.g. EHRs, healthcare claims
- Data may be inconsistently collected or data on key variables may be missed. This can reduce clinical validity
Findings limited to data that are randomly available - susceptible to selection bias
- Potential incompatibility of data from different sources
- Less scrutiny and less uniformity in reporting or data processing/collection compared with RCTs
Real-world data do not constitute a uniform assessment of efficacy under controlled conditions
- Lack of well-characterized, balanced groups of patients in treatment arms
- Not blinded or randomized
- Potential lack of formal, defined endpoints (e.g., use of time to next therapy as a proxy for PFS due to data availability)
Selection bias
- Many positive results that were historically reported for RWE were a result of selection bias
- RCTs, through their robust design, limit the role of bias in determining the real efficacy of medicines
NINLARO REAL-WORLD STUDY DESIGNS AND PATIENT POPULATIONS
The NINLARO regimen was assessed in 4 real-world studies that included some patients who would have not been eligible for the TOURMALINE-MM1 clinical trial.1,3-6 Real-world studies include a broader range of patients who are more representative of typical patients with relapsed/refractory multiple myeloma.3,7
Terpos et al, 2020: A multicenter, retrospective analysis of the NINLARO regimen* in 155 patients† (median age 68 years) with relapsed or refractory multiple myeloma. Patients received a median of 1 prior therapy, the same as the TOURMALINE-MM1 study.3
Hájek et al, 2021: A global retrospective pooled analysis of data from 2 discrete sources or registries‡ evaluating the NINLARO regimen* in 263 patients† (median age 68 years) with relapsed or refractory multiple myeloma. Patients had received a median of 2 prior therapies vs a median of 1 prior therapy in the TOURMALINE-MM1 study.4
Minařik et al, 2021: A prospective analysis of NINLARO regimen* vs Rd regimen* in 344 patients† (median age 66 years) with relapsed or refractory multiple myeloma. Patients received a median of 1 prior therapy, the same as the TOURMALINE-MM1 study.5
*The NINLARO regimen included NINLARO + lenalidomide + dexamethasone. The Rd regimen included placebo + lenalidomide + dexamethasone.1
†Key exclusion criteria for Minařik et al, 2021, included: active first-line therapy; patients with missing data for primary endpoints; patients in clinical trials; patients who switched combination regimens. In Hájek et al, 2021, patients from INSIGHT MM were excluded if they had missing or incomplete data or had signed the study informed consent form more than 3 months after starting the NINLARO regimen. This analysis also excluded patients from RMG with missing or incomplete data. In Terpos et al, 2020, no exclusion criteria were identified. In REMIX 2023, patients who received lenalidomide more than 6 weeks before NINLARO + Rd were excluded from the study.3-7
‡Many of the patients included in the analysis were treated at academic centers; therefore, these results may not be representative of the community practice setting.4
RMG=Registry of Monoclonal Gammopathies.
RWE STUDY RESULTS
Consistent PFS was seen with the NINLARO regimen* across 4
real-world studies1-6
- Observational, retrospective analyses are not intended for direct comparison with clinical trials
- Unadjusted, indirect comparison for illustration only; clinical significance is not implied. Cross-trial comparisons are potentially confounded by differences in trial design and study population
- Real-world analyses are often nonrandomized, observational, retrospective studies that may have unobserved confounding and treatment selection biases as well as other limitations that should be considered when comparing results with clinical trials. Outcomes should be interpreted with caution because of small sample size, limited follow-up, and limited maturity of data4
- There is an unknown overlap in study populations across the RWE studies due to inclusion of patients from the same registries3-5
- These RWE studies included patients ineligible for TOURMALINE-MM1 based on refractory status for lenalidomide and/or proteasome inhibitors, frailty, comorbidities, performance status, and median lines of previous therapy. These RWE studies lack adequate controls to establish safety and efficacy in these subgroups3-5
- These RWE studies included analyses of PFS across select patient subgroups. In certain subgroups, the median PFS observed was not consistent with the overall PFS observed. However, these studies were not powered to show significance in PFS across these subgroups3-5,13
*The NINLARO regimen included NINLARO + lenalidomide + dexamethasone.1
†Treatment lines 2-4.5
‡The REMIX study enrolled 376 patients who received the NINLARO regimen*. Of these patients, 1 was lost to follow-up and 17 had not been assessed for disease progression (but were still alive). Therefore, these patients were not included in the PFS analysis.6
Consistent response rates were seen across 4 studies in the
real world1,3-6
RWE SAFETY PROFILE
Adverse reactions seen in real-world settings were consistent with the known safety profile4,5,13,14
The majority of patients in the clinical trial and clinical practice remained on therapy at their starting dose4-6,14
- In TOURMALINE-MM1, the median relative dose intensity for NINLARO + Rd and placebo + Rd* was high and similar between both arms: 97.8% and 100%, respectively14
- In TOURMALINE-MM1, relative dose intensity was calculated as: 100 x (total amount of dose taken) ÷ (total prescribed dose of treated cycles)14‡
- In the REMIX study, most patients (90.4%; n=340) initiated NINLARO at the full dosage of 4mg administered orally once a week on Days 1, 8, and 15 of a 28-day cycle.1,6§
Unadjusted, indirect comparison for illustration only; clinical significance is not implied. Cross-trial comparisons are potentially confounded by differences in trial design and study population. Observational, retrospective analyses are not intended for direct comparison with clinical trials.
*NINLARO + Rd = NINLARO + lenalidomide + dexamethasone. Rd = placebo + lenalidomide + dexamethasone.1
†Median duration of exposure to NINLARO was 457 days (range: 1–2768 days).14
‡Total prescribed dose equals (dose prescribed at enrollment × number of prescribed doses per cycle × the number of treated cycles).14
§The remaining 9.6% of patients (n=36) were prescribed 3mg or less on Days 1, 8, and 15 of a 28-day cycle.1,6
In 4 real-world studies, the NINLARO regimen demonstrated a tolerability profile comparable to the NINLARO arm in TOURMALINE-MM11-6
Terpos et al, 2020 (N=155)3
Occurrence rates of specific safety aspects of clinical interest: PN (35% vs 27%), PN grade >2 (3% vs 2%), thromboembolism (5% vs 8%), herpes zoster (5% vs 5%), hypertension (4% vs 6%), as reported in the combined study vs TOURMALINE-MM1, respectively.
Hájek et al, 2021 (N=263)4
The most common ARs leading to NINLARO discontinuations included: infection (19%), neutropenia (6%), thrombocytopenia (6%), diarrhea (3%), rash (3%), nausea (3%), fatigue (2%), other† (32%).
Minařik et al, 2021 (n=127)5
Grade ≥3 AEs reported in ≥10% of patients with the NINLARO regimen‡ vs Rd regimen,‡ respectively, included anemia (12% vs 26%), neutropenia (28% vs 23%), thrombocytopenia (21% vs 23%), infection (21% vs 23%), exanthema/rash (25%§ vs 0%), and other (19% vs 32%).
*Dose reduction rates not available for Terpos et al.
†More than 1 AE could be assigned to 1 patient; each AE was counted only once for each patient.4
‡The NINLARO regimen included NINLARO + lenalidomide + dexamethasone. The Rd regimen included placebo + lenalidomide + dexamethasone.1
§Grade ≥3 exanthema/rash was reported in 1 patient receiving the NINLARO regimen (n=1/4).5
AE=adverse event; PN=peripheral neuropathy.
REMIX REAL-WORLD STUDY DATA
REMIX included some patients who would have not been eligible for TOURMALINE-MM1. In REMIX, the median age of the patient population was 71 years old, which is 5 years older than the median age of the TOURMALINE-MM1 population.1,6