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Embozene TANDEM® Microspheres - CE

CE Mark Countries (Except France)

For health care professionals in EUROPE excepted those practicing in France as the following pages are intended for all International health care professionals and are not in compliance with the French Advertising law N°2011-2012 dated 29th December 2011 article 34. Other health care professionals should contact Varian at

Please note that the following pages are exclusively reserved for health care professionals in countries with applicable health authority product registrations. To the extent this site contains information, reference guides and databases intended for use by licensed medical professionals, such materials are not intended to offer professional medical advice. Prior to use, please consult device labeling for prescriptive information and operating instructions.

Benefits of TANDEM Microspheres


  • Calibration matters: tightly calibrated to enable more choices for embolization
  • 95% of all microspheres fall within the stated size variance

Drug Loading

  • Microsphere sizes remain stable during drug loading and storage; typical size change is less than 5%
  • Fast drug loading times:
    • doxorubicin-HCl (powder): 60 minutes
    • doxorubicin-HCl (solution): 120 minutes
    • irinotecan-HCl: 30 minutes
  • Capable of loading up to 50 mg of drug / ml microspheres:
    • doxorubicin-HCl Powder or solution
    • irinotecan-HCl

Product Specifications and Sizes

Size Offering

  • 3 sizes from 40 μm to 100 μm, in 2 mL or 3 mL of product per syringe
    • Only product offered in 40 μm sized, non-radioactive microspheres
    • Only product offered in 3 mL of product per syringe
    • 3-year shelf life from date of manufacture


2 ml product offering

3 ml product offering

40 ± 10 µm



75 ± 15 µm



100 ± 25 µm



Contact Us

Customer Service: 1-877-467-2009 or


Clinical Trials Evaluating TANDEM and Doxorubicin or Irinotecan

Publication / Study


State &

Number of Patients



Richter et al, 2018¹

DEB-TACE with Doxorubicin

ECOG: 0-2
Child-Pugh: A or B*


Freedom From:
30D SAEs: 92%
6M SAEs: 71%
6M tumor progression: 76%
Tumor control: 95%
12M Survival: 56% (w/o ascites 73%)

Safety (30D, 6M) ♦, Tumor progression (6M) ♦, Time to progression♦, Local tumor control, Survival (12M)

Mauri et al, 2018²

DEB-TACE with Irinotecan

ECOG: 0-1**


30 Day SAE-Free: 100% (18/18)
3M Tumor Control: 88.9% (17/18)
6M Tumor Control: 41.2% (7/17)
12M Tumor Control: 17.6% (3/17)
12M Survival: 44%

Safety (30D) ♦, Tumor control (3M) ♦, Secondary: Tumor control (6M, 12M), Survival (12M)

*One study patient 1/25 (4%) treated was Child-Pugh C.
**All study patients 18/18 (100%) treated were ECOG 0.
1 Richter, G., et al., Safety and Feasibility of Chemoembolization with Doxorubicin-Loaded Small Calibrated Microspheres in Patients with Hepatocellular Carcinoma: Results of the MIRACLE I Prospective Multicenter Study. Cardiovasc Intervent Radiol (2018) 41:587–593
2 Mauri, G., et al., Transarterial Embolization with Small-Size Particles Loaded with Irinotecan for the Treatment of Colorectal Liver Metastases: Results of the MIRACLE III Study. Cardiovasc Intervent Radiol (2018) 41:1708–1715.

Randomized Controlled Trials Evaluating Doxorubicin-TACE for Treatment of HCC
Kawai, S., et al., Prospective and randomized clinical trial for the treatment of hepatocellular carcinoma--a comparison of lipiodol-transcatheter arterial embolization with and without adriamycin (first cooperative study). The Cooperative Study Group for Liver Cancer Treatment of Japan. Cancer Chemother Pharmacol, 1992. 31 Suppl: p. S1-6.

Llovet, J.M., et al., Arterial embolisation or chemoembolisation versus symptomatic treatment in patients with unresectable hepatocellular carcinoma: a randomised controlled trial. Lancet, 2002. 359(9319): p. 1734-9.

Brown, K.T., et al., Randomized Trial of Hepatic Artery Embolization for Hepatocellular Carcinoma Using Doxorubicin-Eluting Microspheres Compared With Embolization With Microspheres Alone. J Clin Oncol, 2016. 34(17): p. 2046-53.

Malagari, K., et al., Prospective randomized comparison of chemoembolization with doxorubicin-eluting beads and bland embolization with BeadBlock for hepatocellular carcinoma. Cardiovasc Intervent Radiol, 2010. 33(3): p. 541-51.

Mabed, M., et al., A randomized controlled trial of transcatheter arterial chemoembolization with lipiodol, doxorubicin and cisplatin versus intravenous doxorubicin for patients with unresectable hepatocellular carcinoma. Eur J Cancer Care (Engl), 2009. 18(5): p. 492-9.

Lammer, J., et al., Prospective randomized study of doxorubicin-eluting-bead embolization in the treatment of hepatocellular carcinoma: results of the PRECISION V study. Cardiovasc Intervent Radiol, 2010. 33(1): p. 41-52.

van Malenstein, H., et al., A randomized phase II study of drug-eluting beads versus transarterial chemoembolization for unresectable hepatocellular carcinoma. Onkologie, 2011. 34(7): p. 368-76.

Sacco, R., et al., Conventional versus doxorubicin-eluting bead transarterial chemoembolization for hepatocellular carcinoma. J Vasc Interv Radiol, 2011. 22(11): p. 1545-52.

Golfieri, R., et al., Randomised controlled trial of doxorubicin-eluting beads vs conventional chemoembolisation for hepatocellular carcinoma. British Journal of Cancer, 2014. 111(2): p. 255-264.

Randomized Controlled Trials Evaluating Irinotecan-TACE for Treatment of mCRC
Fiorentini, G., et al., Intra-arterial infusion of irinotecan-loaded drug-eluting beads (DEBIRI) versus intravenous therapy (FOLFIRI) for hepatic metastases from colorectal cancer: final results of a phase III study. Anticancer Res, 2012. 32(4): p. 1387-95.

Martin, R.C., 2nd, et al., Irinotecan drug-eluting beads in the treatment of chemo-naive unresectable colorectal liver metastasis with concomitant systemic fluorouracil and oxaliplatin: results of pharmacokinetics and phase I trial. J Gastrointest Surg, 2012. 16(8): p. 1531-8.

Martin, R.C., 2nd, et al., Randomized controlled trial of irinotecan drug-eluting beads with simultaneous FOLFOX and bevacizumab for patients with unresectable colorectal liver-limited metastasis. Cancer, 2015. 121(20): p. 3649-58.


CAUTION: The law restricts these devices to sale by or on the order of a physician. Indications, contraindications, warnings and instructions for use can be found in the product labelling supplied with each device. Information for use only in countries with applicable health authority registrations. Material not intended for use in France.