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Table 3 MUK eight secondary and exploratory endpoint analysis

From: The MUK eight protocol: a randomised phase II trial of cyclophosphamide and dexamethasone in combination with ixazomib, in relapsed or refractory multiple myeloma (RRMM) patients who have relapsed after treatment with thalidomide, lenalidomide and a proteasome inhibitor

Secondary (S) and exploratory (E) endpoints

Analysis method(s)

S(i) Proportion of patients achieving at least Partial Response

[D1] Logistic regression

S(ii) Proportion of patients in each maximum response category

[D1] Ordered logistic regression

S(iii) Time to progression

[D1] CIF and log-rank test, Cox PH

S(iv) Time to maximum response

[D1] Kaplan-Meier and log-rank test, Cox PH, CIF

S(v) Duration of response

[D1] Kaplan-Meier and log-rank test, Cox PH

S(vi) Overall survival

[D1] Kaplan-Meier and log-rank test, Cox PH

S(viii) Treatment compliance

[NFT] Descriptive summaries

S(ix) Safety and toxicity

[NFT] Descriptive summaries

S(x) Cost-effectiveness

[HE] Cost-utility analysis, cost effectiveness acceptability curves

S(xi) Quality of life

[D1] Multi-level repeated measures model

E(i) To identify possible biomarkers of response to ICD

[NFT] Descriptive summaries

E(ii) To estimate PFS2 for those that switch to ICD following CD treatment

[NFT] Kaplan-Meier and [D2] exploratory analyses: Kaplan-Meier and log-rank test, Cox PH

E(iii) To estimate PFS Switch for those that switch to ICD following CD treatment

[NFT] Kaplan-Meier and [D3] exploratory analyses of the ratio of PFS from switch against PFS on CD pre-switch

E(iv) Proportion of patients achieving at least Partial Response for ICD following CD treatment

[NFT] Descriptive summaries

E(v) Proportion of patients in each maximum response category of ICD following CD treatment

[NFT] Descriptive summaries

E(vi) Time to maximum response for ICD following CD treatment

[NFT] Kaplan-Meier

E(vii) Duration of response for ICD following CD treatment

[NFT] Kaplan-Meier

E(viii) Treatment compliance for ICD following CD treatment

[NFT] Descriptive summaries

E(ix) Safety and toxicity for ICD following CD treatment

[NFT] Descriptive summaries

  1. D1 differences between treatment arms (ICD vs CD), D2 differences between treatment arms (ICD vs ICD Switch after progression on CD), D3 differences between treatments (CD vs ICD Switch after progression on CD), NFT no formal statistical testing, HE health economic analysis, Cox PH Cox’s proportional hazards model, CIF cumulative incidence function curves for competing risk analysis