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SANET-ep and SANET-p

In the SANET trials, a Chinese anti-angiogenic pill slowed both gut and pancreatic neuroendocrine tumours, but its US application was refused.

SANET-ep PFS 9.2 vs 3.8 months (HR 0.33); SANET-p PFS 10.9 vs 3.7 months (HR 0.49). Approved in China (2020-21); FDA complete response letter (2022) requiring a multiregional trial.

Setting
Progressive extra-pancreatic (n=198) and pancreatic (n=172) NETs: surufatinib vs placebo (China)
Phase
Phase 3
Sponsor
Hutchmed
Registry
Headline result
PFS HR 0.33 (ep), 0.49 (p).
Reported
2020
Enrolled
369

Outcomes

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In plain words
What these results mean for people, not percentages
369 people took part
Progression-free survival (SANET-ep)primarysurrogate endpoint
  • Median 9.2 vs 3.8 months with Surufatinib compared with Placebo; about 5.4 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.
  • Put another way, the treated group had about 67 percent lower chance of the event at any given time (hazard ratio 0.33).
Progression-free survival (SANET-p)primarysurrogate endpoint
  • Median 10.9 vs 3.7 months with Surufatinib compared with Placebo; about 7.2 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.
  • Put another way, the treated group had about 51 percent lower chance of the event at any given time (hazard ratio 0.49).
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: Progressive extra-pancreatic (n=198) and pancreatic (n=172) NETs: surufatinib vs placebo (China). 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.

369 participants enrolled.

Progression-free survival (SANET-ep)primary
HR 0.33
Surufatinib
9.2 mo
Placebo
3.8 mo
Progression-free survival (SANET-p)primary
HR 0.49
Surufatinib
10.9 mo
Placebo
3.7 mo
EndpointArmnValueHR (95% CI)pSource
Progression-free survival (SANET-ep)primarySurufatinib9.2 months0.33
Placebo3.8 months
Progression-free survival (SANET-p)primarySurufatinib10.9 months0.49
Placebo3.7 months

Connected

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