Drug Class: Cell Cycle Inhibitors

Cell Cycle Inhibitors: CHK1/2 Inhibitors

Platinum-Resistant/Refractory (Pt-R/Rf): Treatment given for recurrence occurring less than 6 months after last platinum-based treatment or for progression during last platinum-based treatment

Objective Response Rate (%)

Percentage of patients whose tumors shrink or go away after treatment

Progression Free Survival (months)

Median length of time before the cancer comes back or gets worse

3 Prior Therapies

Treatment given for recurrence occurring at any time after last platinum-based treatment

Objective Response Rate (%)

Percentage of patients whose tumors shrink or go away after treatment

Progression Free Survival (months)

Median length of time before the cancer comes back or gets worse

5 Prior Therapies

Cell Cycle Inhibitors: CHK1/2 Inhibitors

Platinum-Resistant/Refractory (Pt-R/Rf): Treatment given for recurrence occurring less than 6 months after last platinum-based treatment or for progression during last platinum-based treatment

For more detailed information, please click on the clinical trial ID number.

Trial ID # Phase Drugs Clinical Trial Title Key Conclusion and Results
Drugs in Clinical Development
NCT03414047 II ACR-368 A Phase 2 Study of Prexasertib in Platinum-Resistant or Refractory Recurrent Ovarian Cancer

ACR-368 (prexasertib) demonstrates durable single agent activity in a subset of patients with platinum resistant HGSOC regardless of clinical characteristics or prior therapy

ORR: 12.1%
DCR: 37.1%

pub 2022

Treatment given for recurrence occurring at any time after last platinum-based treatment

For more detailed information, please click on the clinical trial ID number.

Trial ID # Phase Drugs Clinical Trial Title Key Conclusion and Results
Drugs in Clinical Development
NCT02203513 II ACR-368 A Phase II Single Arm Pilot Study of the Chk1/2 Inhibitor (LY2606368) In BRCA1/2 Mutation Associated Breast or Ovarian Cancer, Triple Negative Breast Cancer, and High Grade Serous Ovarian Cancer

Promising activity in heavily pretreated BRCA WT patients, including those with CCNE1 alterations, but modest activity in BRCA MUT patients

BRCA WT:
ORR: 32%
PFS: 7.5 months

BRCA MUT
ORR: 11.1%

pub 2018, abs May 2020 and poster

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