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Keyword: PARP
Relevance: Medium-High
Strength of Science: High
Research Timeline: Human Research
Study : Promising early results for treating metastatic prostate cancer
Relevance: Medium-High
Strength of Science: High
Research Timeline: Human Research
Most relevant for: People with metastatic castration-resistant prostate cancer (mCRPC)
The TALAPRO studies looked at how well the oral drug Talzenna (talazoparib) works as a treatment for metastatic castration-resistant prostate cancer (mCRPC). The addition of Talzenna to treatment with Xtandi (enzalutamide) increased the time until the cancer got worse or came back (progression-free survival). The greatest benefit was seen in people who had an inherited or tumor mutation in a gene that repairs DNA damage (such as ATM, BRCA1, BRCA2 and others). (Posted 3/1/23)
Update: On June 20, 2023, the Food and Drug Administration (FDA) approved the combination of Talzenna with Xtandi as an initial treatment for some people with mCRPC for people with inherited or tumor mutations in genes that repair DNA damage.
Este artículo está disponible en español.
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Relevance: Medium-High
Strength of Science: Medium
Research Timeline: Post Approval
Study : More is not better: PARP dose can be safely reduced for people with ovarian cancer
Relevance: Medium-High
Strength of Science: Medium
Research Timeline: Post Approval
Most relevant for: People taking a PARP inhibitor for ovarian cancer maintenance therapy
Maintenance therapy with a PARP inhibitor is now the standard of care for many people with advanced or recurrent ovarian cancer. However, PARP inhibitors may have significant side effects. This study shows that reducing the dose of a PARP inhibitor does not affect survival. (Posted 11/8/22)
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Update : PARP inhibitors withdrawn as third-line or later treatment for recurrent ovarian cancer
Most relevant for: people with recurrent ovarian cancer who have received 3 or more prior lines of treatment and who have an inherited or tumor mutation in BRCA1 or BRCA2 or whose tumor is HRD positive
Survival data from a clinical trial signaled that PARP inhibitors may not work as well as chemotherapy for patients with recurrent ovarian cancer who have received three or more lines of treatment. As a result, FDA approvals have been withdrawn for PARP inhibitors in this setting. This does not affect PARP inhibitor approvals for use as maintenance therapy for ovarian cancer. (Posted 10/4/22)
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Relevance: Medium-High
Strength of Science: Medium-High
Research Timeline: Human Research
Study : PARP inhibitor treatment for metastatic prostate cancer shows most benefit in men with inherited BRCA mutations
Relevance: Medium-High
Strength of Science: Medium-High
Research Timeline: Human Research
Most relevant for: People with metastatic castration resistant prostate cancer who have an inherited or tumor mutation in BRCA2.
This study looked at the benefit of using the PARP inhibitor niraparib to treat metastatic castration-resistant prostate cancer (mCRPC). Participants included those with an inherited or tumor mutation in BRCA1 or BRCA2 or an inherited or tumor mutation in another gene that affects DNA repair. Participants with an inherited or tumor mutation in BRCA1 or BRCA2 had better survival compared to those without a BRCA mutation. Side effects from niraparib were common, and consistent with previous reports for PARP inhibitors. (posted 9/6/2022)
Este artículo está disponible en español.
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Relevance: Medium-High
Strength of Science: High
Research Timeline: Post Approval
Study : Quality of life for people with early-stage breast cancer who participated in the OlympiA clinical trial
Relevance: Medium-High
Strength of Science: High
Research Timeline: Post Approval
Most relevant for: People with inherited mutations in BRCA1 or BRCA2 who have been diagnosed with early-stage, HER2-negative breast cancer.
The OlympiA study showed that the PARP inhibitor olaparib (Lynparza) is effective when used as maintenance therapy for people with an inherited BRCA1 or BRCA2 mutation who have early-stage breast cancer. Patient-reported outcomes from OlympiA suggest that olaparib was well tolerated and did not reduce quality of life or delay recovery from chemotherapy. (posted 2/22/22) Update: Based on OlympiA results, the FDA approved olaparib as adjuvant treatment for people with an inherited BRCA mutation who were diagnosed with early-stage HER2-negative breast cancer at high risk for recurrence. (03/11/2022).
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Relevance: Medium-High
Strength of Science: High
Research Timeline: Post Approval
Guideline : ASCO guidelines recommend olaparib for people with early-stage, high-risk breast cancer and an inherited BRCA mutation
Relevance: Medium-High
Strength of Science: High
Research Timeline: Post Approval
Most relevant for: People with early-stage HER2-negative breast cancer and an inherited BRCA mutation
The American Society of Clinical Oncology (ASCO) has updated their breast cancer treatment guidelines to include treatment with the PARP inhibitor olaparib (Lynparza) for one year after completing chemotherapy, surgery and radiation (if used) to improve outcomes of people with an inherited mutation in BRCA1 or BRCA2 with early-stage, HER2-negative breast cancer who have a high risk for recurrence. (posted 8/6/21) Update: Based on results from the OlympiA Study, the FDA approved olaparib as adjuvant treatment for people with an inherited BRCA mutation who have been diagnosed with early-stage HER2-negative breast cancer and are at high risk for recurrence. (03/11/2022)
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Update : FDA approves the PARP inhibitor olaparib (Lynparza) in combination with bevacizumab (Avastin) as maintenance therapy for some women with advanced ovarian cancer
Most relevant for: Women with advanced ovarian cancer whose tumor has a BRCA mutation or a type of tumor marker called homologous recombination deficiency (HRD)
The FDA has approved the first drug combination to be used as a first-line maintenance therapy for some women with advanced ovarian cancer. (7/7/2020)
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Relevance: Medium-High
Strength of Science: Medium-High
Research Timeline: Human Research
Study : Promising research using a PARP inhibitor to treat metastatic breast cancer in people with an inherited PALB2 mutation or a tumor mutation in BRCA1 or BRCA2
Relevance: Medium-High
Strength of Science: Medium-High
Research Timeline: Human Research
Most relevant for: People with metastatic breast cancer with an inherited mutation in PALB2 or tumor with a BRCA mutation
Early results of a small study showed that women with metastatic breast cancer and an inherited mutation in PALB2 or an acquired tumor mutation in BRCA1 or BRCA2 benefitted from the PARP inhibitor olaparib (Lynparza). (6/18/20)
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Update : PARP inhibitors, rucaparib (Rubraca) and olaparib (Lynparza) receive FDA approval for metastatic prostate cancer
Most relevant for: Men with metastatic castration-resistant prostate cancer who have certain inherited or tumor mutations in DNA repair genes
The FDA approved two PARP inhibitors, rucaparib (Rubraca) and olaparib (Lynparza) for treatment of metastatic castration-resistant prostate cancer (mCRPC) in men who have certain inherited mutations or tumor mutations. (6/1/20)
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Update : New FDA approval of PARP inhibitor for maintenance therapy in ovarian cancer
Most relevant for: People with advanced ovarian cancer who have had a complete or partial response to chemotherapy
The FDA has approved the use of niraparib (Zejula) as a maintenance therapy for women with advanced ovarian cancer who have had a complete or partial response to chemotherapy. (5/7/20)
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