Last update 21 Aug 2026

Talazoparib Tosylate

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
BMN 673, Talazoparib, talazoparib
+ [15]
Action
inhibitors
Mechanism
PARP1 inhibitors(Poly (ADP-Ribose) polymerase 1 inhibitors), PARP2 inhibitors(Poly (ADP-Ribose) Polymerase 2 inhibitors)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
RegulationPriority Review (United States)
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Structure/Sequence

Molecular FormulaC26H22F2N6O4S
InChIKeyQUQKKHBYEFLEHK-QNBGGDODSA-N
CAS Registry1373431-65-2

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
BRCA Mutation Castration-Resistant Prostate Cancer
Japan
18 Jan 2024
Metastatic castration-resistant prostate cancer
European Union
08 Jan 2024
Metastatic castration-resistant prostate cancer
Iceland
08 Jan 2024
Metastatic castration-resistant prostate cancer
Liechtenstein
08 Jan 2024
Metastatic castration-resistant prostate cancer
Norway
08 Jan 2024
Breast Cancer
South Korea
30 Jul 2020
HRR Gene-mutated Castration-Resistant Prostate Cancer
Australia
18 Nov 2019
Metastatic breast cancer
Canada
06 Sep 2019
Hormone receptor positive breast cancer
European Union
20 Jun 2019
Hormone receptor positive breast cancer
Iceland
20 Jun 2019
Hormone receptor positive breast cancer
Liechtenstein
20 Jun 2019
Hormone receptor positive breast cancer
Norway
20 Jun 2019
Germline BRCA-mutated, HER2-negative metastatic breast cancer
United States
16 Oct 2018
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
BRCA mutation positive Breast CancerNDA/BLA
China
22 Jun 2026
Castration-Resistant Prostatic CancerNDA/BLA
United States
17 Feb 2023
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
United States
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
China
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Japan
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Argentina
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Australia
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Belgium
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Bulgaria
12 May 2021
Metastatic Castration-Sensitive Prostate CarcinomaPhase 3
Canada
12 May 2021
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
Metastatic Prostate Carcinoma
alterations in homologous recombination repair genes
599
Talazoparib 0.5 mg + Enzalutamide 160 mg
navmxsofxb(otvqochxti) = nlngckuqjc mqafucubht (jepfgbevcz )
Positive
30 May 2026
Placebo + Enzalutamide 160 mg
navmxsofxb(otvqochxti) = tccvfnyxin mqafucubht (jepfgbevcz )
Phase 3
505
(Unselected with dose reduction)
anxghyajzq(xlrnrziwjh) = yqspbsukfb ybtnncsaha (wmcanqgwbp )
Positive
29 May 2026
(Unselected without dose reduction)
anxghyajzq(xlrnrziwjh) = ujdkuhfctl ybtnncsaha (wmcanqgwbp )
Phase 3
599
wyfomxxvdr(qxabzlhvyc) = rqvrqyesci ftogtmqynk (vfcedlmttx )
Positive
29 May 2026
placebo + enzalutamide
nvwnzarmrq(lwoqjksidc) = qkijhnwqcn sfahsfgged (dhndtrhsjf )
Phase 2
126
lpaqjropue(zfndtdzdyd) = mwimafcmld tfgiauqhiq (dzaitwinqk )
Positive
29 May 2026
jicufseviv(jeipebeqph) = ylzvpxvonu svhwcbgfsl (euicbotgaj )
Phase 2
54
glfmguzguo(ucloahjezi) = hbdrzzbyrz egjwthpvdv (vmpcciasrz, 23.0 - NR)
Positive
29 May 2026
glfmguzguo(ucloahjezi) = kecucybhem egjwthpvdv (vmpcciasrz, 6.3 - 45.4)
Phase 3
599
nyupivkftj(kvczmrxljd) = demonstrating a statistically significant and clinically meaningful reduction oidsmixxse (arasgtcgin )
Met
Positive
19 Mar 2026
Phase 3
903
Talazoparib 0.5 mg + Enzalutamide 160 mg
smsrvylrum(phbiivsrpe) = spdfynsvgs cgqgjqwqrn (uixxkrxizm )
Positive
26 Feb 2026
Placebo + Enzalutamide 160 mg
smsrvylrum(phbiivsrpe) = zsfdbhqrtt cgqgjqwqrn (uixxkrxizm )
Phase 2
115
(Expansion Cohort A - Combination Treatment in Post-TROP2-ADC Patients)
qzvejuadvl = rvggnwsnkh jihumpkbvr (chudpivxwc, jtgciujtde - phvayniqtk)
-
07 Oct 2025
(Expansion Cohort C - Combination Treatment in TROP2-ADC-naïve Patients)
bjkizyoyxx = gzcwvesykx ogfdovagkr (tmmbgyafdb, irxlcbzkoi - mupejewwmu)
Phase 1/2
23
baraldsbau(rfvxtvilab) = qyhwbaikwt iuextlbogt (cnqygystlb, 3.5 - 8.4)
Negative
01 Aug 2025
Phase 1/2
Advanced Triple-Negative Breast Carcinoma | BRCA mutation positive Breast Cancer
HER2 Negative | ER Negative | PR Negative ...
-
cjgsythfoy(fkvvibguoa) = rjcxhyrymd deplabiawz (xgoohatabr )
Negative
05 Jun 2025
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Regulation

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