OnCo
trialsTrialPositive

RESONATE

The trial that made a daily pill the standard for relapsed CLL, cutting the risk of progression by nearly 80%.

PFS HR 0.22 (95% CI 0.15-0.32) at interim; OS HR 0.43; 6-year follow-up: median PFS 44.1 vs 8.1 months, benefit maintained in del(17p) and unmutated IGHV. NEJM 2014. Basis of the 2014 CLL approval.

Setting
Relapsed or refractory CLL/SLL: ibrutinib vs ofatumumab
Phase
Phase 3
Sponsor
Pharmacyclics / Janssen
Registry
Headline result
PFS HR 0.22; median PFS 44.1 vs 8.1 months (6-year).
Reported
2014
Enrolled
391
Replication
RESONATE-2 (frontline vs chlorambucil), HELIOS, and the Alliance A041202 trial all confirmed BTK-inhibitor superiority over chemoimmunotherapy in CLL.

Outcomes

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In plain words
What these results mean for people, not percentages
391 people took part
Progression-free survivalprimarysurrogate endpoint
  • The treated group had about 78 percent lower chance of the event at any given time (hazard ratio 0.22).
  • The absolute difference, how many more people out of 100 were helped, is not reported here.
Progression-free survival (median, 6-year follow-up)surrogate endpoint
  • Median 44.1 vs 8.1 months with Ibrutinib compared with Ofatumumab; about 36 months longer for half the group.
  • A median is a midpoint: half the people did better than this and half did worse, so it is not a prediction for any one person.
Be careful
  • This is a surrogate endpoint: it measures the cancer being controlled or absent on scans and tests, which often, but not always, translates into living longer.
  • These results apply to the people the trial enrolled: Relapsed or refractory CLL/SLL: ibrutinib vs ofatumumab. People in a different situation may not see the same effect.

Numbers are from the trial as recorded here; see the source links in the table below. This is orientation, not medical advice: ask your team how closely the trial population matches you.

391 participants enrolled.

Progression-free survivalprimary
HR 0.22 (0.15–0.32) · p <0.001

Numbers not yet public.

Source
Progression-free survival (median, 6-year follow-up)
Ibrutinib
44.1 mo
Ofatumumab
8.1 mo
EndpointArmnValueHR (95% CI)pSource
Progression-free survivalprimaryIbrutinib1950.22 (0.15–0.32)<0.001link
Ofatumumab196
Progression-free survival (median, 6-year follow-up)Ibrutinib44.1 months
Ofatumumab8.1 months
Replication
RESONATE-2 (frontline vs chlorambucil), HELIOS, and the Alliance A041202 trial all confirmed BTK-inhibitor superiority over chemoimmunotherapy in CLL.

Connected

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