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Satraplatin

Clinical data
Other names	BMY 45594 BMS 182751 (OC-6-43)-bis(acetato)amminedichlorocyclohexylamine platinum(IV)
Routes of administration	Oral
ATC code	L01XA04 (WHO)
Identifiers
IUPAC name (OC-6-43)-bis(acetato)amminedichloro(cyclohexylamine)platinum
CAS Number	129580-63-8
PubChem CID	123974
UNII	8D7B37T28G
ChEBI	CHEBI:85609
CompTox Dashboard (EPA)	DTXSID00926438
Chemical and physical data
Formula	C10H22Cl2N2O4Pt
Molar mass	500.277 g/mol g·mol
(verify)

Satraplatin (INN, codenamed JM216) is a platinum-based antineoplastic agent that is under investigation as one treatment of patients with advanced prostate cancer who have failed previous chemotherapy. It has not yet received approval from the U.S. Food and Drug Administration. First mentioned in the medical literature in 1993, satraplatin is the first orally active platinum-based chemotherapeutic drug; other available platinum analogues—cisplatin, carboplatin, and oxaliplatin—must be given intravenously.

It is made available in the United States jointly by Spectrum Pharmaceuticals and GPC Biotech under the name SPERA (SatraPlatin Expanded Rapid Access).

The drug has also been used in the treatment of lung and ovarian cancers. The proposed mode of action is that the compound binds to the DNA of cancer cells rendering them incapable of dividing.

Medical Use

Satraplatin is an orally bioavailable platinum chemotherapeutic agent under development for several cancer types, including hormone-refractory prostate cancer (HRPC). Satraplatin is being developed for the treatment of men with chemorefractory HRPC for several reasons. It's relative ease of administration, potential lack of cross-resistance with other platinum agents, clinical benefits seen in early studies of HRPC, and an unmet need in this patient population after Docetaxel failure. Satraplatin may provide a palliative benefit for patients in terms of progression-free survival according to the most recent analyses of the phase III SPARC trial, and is currently under Food and Drug Administration review for this indication. Whether satraplatin and prednisone offer an advantage over docetaxel retreatment or other cytotoxic agents in this setting is under investigation.

Satraplatin has a favorable toxicity profile, and appears to have clinical activity against a variety of malignancies such as Breast Cancer, Prostate cancer and Lung cancer. The oral route of administration and the intermittent schedule makes it very convenient for clinical use. Despite this, a FDA-approved indication has not yet been achieved. The only Phase III trial with satraplatin was conducted in pre-treated metastatic prostate cancer(CRPC), revealing an improvement in progression-free survival but no overall survival benefit.

History

Platinum-based chemotherapy was an accidental discovery in the laboratory by Barnett Rosenberg. Rosenberg noticed inhibited cell division of Escherichia coli cells during electrolysis of a platinum-based electrode. The compound discovered was later named Cisplatin and clinically used by 1970. After years of use, cisplatin became an invaluable component of therapy for some common cancer tumors such as lung, head, neck, and bladder cancers. Kidney damage, neurotoxicity, ototoxicity, development of resistance were some of the more serious side effects that prompted the development of novel platinum analogues.

In 1982 Carboplatin was found to be a popular platinum-based compound very similar to cisplatin. After many trials and analyses with successful results equivalent to those of cisplatin but with a more tolerable toxicity profile making the drug more desirable for therapy. The more serious side effects that were associated with carboplatin were bone marrow suppression and principally thrombocytopenia. Carboplatin was approved by the FDA in 1989 to be used to treat advanced Ovarian cancer.

Research found that Oxaliplatin was demonstrating successful activity in patients with advanced colon cancer. Studies done in 2000 to 2004 supported the utility of oxaliplatin in combination with chemotherapy. The use of oxaliplatin in combination with Fluorouracil and Folinic acid was approved by the FDA for the treatment of only stage IV Colorectal cancer then later approved for stage III colon cancer patients who had previously received complete resection of the primary tumor. Many human tumors including testicular, bladder, lung, head, neck, and cervical cancers have been treated with platinum compounds. All of the marketed platinum analogues must be administered via intravenous infusion is one of the main disadvantages for these platinum compounds due to severe, dose limiting effects. An acquired resistance to cisplatin/carboplatin in ovarian cancer was discovered due to insufficient amounts of platinum reaching the target DNA or failure to achieve cell death. These drawbacks led to the development of the next generation of platinum analogues such as satraplatin

References

1. Wheate, Nial J.; Walker, Shonagh; Craig, Gemma E.; Oun, Rabbab (2010). "The status of platinum anticancer drugs in the clinic and in clinical trials". Dalton Transactions. 39 (35): 8113–27. doi:10.1039/C0DT00292E. PMID 20593091.
2. Kelland LR, Abel G, McKeage MJ, et al. (1993). "Preclinical antitumor evaluation of bis-acetato-ammine-dichloro-cyclohexylamine platinum(IV): an orally active platinum drug" (PDF). Cancer Res. 53 (11): 2581–6. PMID 8388318.
3. Choy H, Park C, Yao M (2008). "Current status and future prospects for satraplatin, an oral platinum analogue". Clin Cancer Res. 14 (6): 1633–8. doi:10.1158/1078-0432.CCR-07-2176. PMID 18347164.{{cite journal}}: CS1 maint: multiple names: authors list (link)
4. Satraplatin — Spectrum Pharmaceuticals
5. Choy, Hak; Park, Clinton; Yao, Min (2008). "Current Status and Future Prospects for Satraplatin, an Oral Platinum Analogue". Clin Cancer Res. 14; 1633 doi: 10.1158/1078-0432.CCR-07-2176
6.  Vaishampayan UN. (2009) "Satraplatin: Leading the new generation of oral platinum agents." Expert opinion on investigational drugs." ;18(11):10.1517/13543780903362437. doi:10.1517/13543780903362437.
7. ^ Vaishampayan UN. (2009) "Satraplatin: Leading the new generation of oral platinum agents." Expert opinion on investigational drugs. ;18(11):10.1517/13543780903362437. doi:10.1517/13543780903362437.

• Coordination compounds
• Platinum compounds
• Acetates
• Platinum-based antineoplastic agents