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Published in: Investigational New Drugs 3/2007

01-06-2007 | Phase I Studies

Pharmacokinetic and safety study of weekly irinotecan and oral capecitabine in patients with advanced solid cancers

Authors: Sanjay Goel, Kavita Desai, Sirisha Karri, Radharani Gollamudi, Imran Chaudhary, Anca Bulgaru, Andreas Kaubisch, Gary Goldberg, Mark Einstein, Fernando Camacho, Sharyn Baker, Sridhar Mani

Published in: Investigational New Drugs | Issue 3/2007

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Summary

Background: Capecitabine and irinotecan have demonstrated in vitro synergistic anti-cancer activity, and both are substrates for carboxyl esterases (CES). We conducted a study to identify a safe dose and potential drug-drug interactions of this combination.
Methods: This was an open-label phase I dose escalation trial. Irinotecan was given as a 30 min infusion on days 1 and 8, and capecitabine on days 1–14 of a 21-day cycle. Plasma for pharmacokinetic analyses was drawn on days 1 and 8.
Results: Forty-seven patients with advanced solid tumors received 202 cycles of chemotherapy in 6 dose cohorts. At the highest dose tested, 1 of 3 patients developed fatal neutropenia and gram-negative sepsis. At dose level 5 (100/2000), 2 of 28 patients developed cycle 1 DLT—grade 3 diarrhea/vomiting, and grade 3 diarrhea. Responses were observed in 9 of 35 (5 of 9 ovarian cancer) evaluable patients. The AUC(0-last) of irinotecan, SN-38G, and APC were similar on days 1 and 8. However, SN-38 Tmax was longer on Day 8 (0.88 h vs. 1.23 h, p = 0.012). While SN-38 AUC(0-last) was lower on day 8 by 35%, this was not statistically significant (p = 0.123).
Conclusions: Capecitabine results in a significantly delayed conversion of irinotecan to SN-38, suggesting drug-drug interaction at the level of CES. This suggests caution should be used when irinotecan is combined with substrates of CES, and warrants further study. The combination of irinotecan and capecitabine is safe and well tolerated at 100/2000, and warrants further evaluation in ovarian and breast cancer.
Literature
1.
go back to reference Saltz LB, Cox JV, Blanke C, Rosen LS, Fehrenbacher L, Moore MJ, Maroun JA, Ackland SP, Locker PK, Pirotta N, Elfring GL, Miller LL (2000) Irinotecan plus fluorouracil and leucovorin for metastatic colorectal cancer: Irinotecan study group. N Engl J Med 343:905–914PubMedCrossRef Saltz LB, Cox JV, Blanke C, Rosen LS, Fehrenbacher L, Moore MJ, Maroun JA, Ackland SP, Locker PK, Pirotta N, Elfring GL, Miller LL (2000) Irinotecan plus fluorouracil and leucovorin for metastatic colorectal cancer: Irinotecan study group. N Engl J Med 343:905–914PubMedCrossRef
2.
go back to reference Douillard JY, Cunningham D, Roth AD, Navarro M, James RD, Karasek P, Jandik P, Iveson T, Carmichael J, Alakl M, Gruia G, Awad L, Rougier P (2000) Irinotecan combined with fluorouracil compared with fluorouracil alone as first-line treatment for metastatic colorectal cancer: a multicentre randomised trial. Lancet 355:1041–1047PubMedCrossRef Douillard JY, Cunningham D, Roth AD, Navarro M, James RD, Karasek P, Jandik P, Iveson T, Carmichael J, Alakl M, Gruia G, Awad L, Rougier P (2000) Irinotecan combined with fluorouracil compared with fluorouracil alone as first-line treatment for metastatic colorectal cancer: a multicentre randomised trial. Lancet 355:1041–1047PubMedCrossRef
3.
go back to reference Pentheroudakis G, Twelves C (2002) The rational development of capecitabine from the laboratory to the clinic. Anticancer Res 22:3589–3596PubMed Pentheroudakis G, Twelves C (2002) The rational development of capecitabine from the laboratory to the clinic. Anticancer Res 22:3589–3596PubMed
4.
go back to reference Schuller J, Cassidy J, Dumont E, Roos B, Durston S, Banken L, Utoh M, Mori K, Weidekamm E, Reigner B (2000) Preferential activation of capecitabine in tumor following oral administration to colorectal cancer patients. Cancer Chemother Pharmacol 45:291–297PubMedCrossRef Schuller J, Cassidy J, Dumont E, Roos B, Durston S, Banken L, Utoh M, Mori K, Weidekamm E, Reigner B (2000) Preferential activation of capecitabine in tumor following oral administration to colorectal cancer patients. Cancer Chemother Pharmacol 45:291–297PubMedCrossRef
5.
go back to reference O’Shaughnessy J, Miles D, Vukelja S, Moiseyenko V, Ayoub JP, Cervantes G, Fumoleau P, Jones S, Lui WY, Mauriac L, Twelves C, Van Hazel G, Verma S, Leonard R (2002) Superior survival with capecitabine plus docetaxel combination therapy in anthracycline-pretreated patients with advanced breast cancer: phase III trial results. J Clin Oncol 20:2812–2823PubMedCrossRef O’Shaughnessy J, Miles D, Vukelja S, Moiseyenko V, Ayoub JP, Cervantes G, Fumoleau P, Jones S, Lui WY, Mauriac L, Twelves C, Van Hazel G, Verma S, Leonard R (2002) Superior survival with capecitabine plus docetaxel combination therapy in anthracycline-pretreated patients with advanced breast cancer: phase III trial results. J Clin Oncol 20:2812–2823PubMedCrossRef
6.
go back to reference Van Cutsem E, Twelves C, Cassidy J, Allman D, Bajetta E, Boyer M, Bugat R, Findlay M, Frings S, Jahn M, McKendrick J, Osterwalder B, Perez-Manga G, Rosso R, Rougier P, Schmiegel WH, Seitz JF, Thompson P, Vieitez JM, Weitzel C, Harper P, Xeloda Colorectal Cancer Study Group (2001) Oral capecitabine compared with intravenous fluorouracil plus leucovorin in patients with metastatic colorectal cancer: results of a large phase III study. J Clin Oncol 19:4097–4106PubMed Van Cutsem E, Twelves C, Cassidy J, Allman D, Bajetta E, Boyer M, Bugat R, Findlay M, Frings S, Jahn M, McKendrick J, Osterwalder B, Perez-Manga G, Rosso R, Rougier P, Schmiegel WH, Seitz JF, Thompson P, Vieitez JM, Weitzel C, Harper P, Xeloda Colorectal Cancer Study Group (2001) Oral capecitabine compared with intravenous fluorouracil plus leucovorin in patients with metastatic colorectal cancer: results of a large phase III study. J Clin Oncol 19:4097–4106PubMed
7.
go back to reference Hoff PM, Ansari R, Batist G, Cox J, Kocha W, Kuperminc M, Maroun J, Walde D, Weaver C, Harrison E, Burger HU, Osterwalder B, Wong AO, Wong R (2001) Comparison of oral capecitabine versus intravenous fluorouracil plus leucovorin as first-line treatment in 605 patients with metastatic colorectal cancer: results of a randomized phase III study. J Clin Oncol 19:2282–2292PubMed Hoff PM, Ansari R, Batist G, Cox J, Kocha W, Kuperminc M, Maroun J, Walde D, Weaver C, Harrison E, Burger HU, Osterwalder B, Wong AO, Wong R (2001) Comparison of oral capecitabine versus intravenous fluorouracil plus leucovorin as first-line treatment in 605 patients with metastatic colorectal cancer: results of a randomized phase III study. J Clin Oncol 19:2282–2292PubMed
8.
go back to reference Twelves C, Wong A, Nowacki MP, Abt M, Burris H 3rd, Carrato A, Cassidy J, Cervantes A, Fagerberg J, Georgoulias V, Husseini F, Jodrell D, Koralewski P, Kroning H, Maroun J, Marschner N, McKendrick J, Pawlicki M, Rosso R, Schuller J, Seitz JF, Stabuc B, Tujakowski J, Van Hazel G, Zaluski J, Scheithauer W (2005) Capecitabine as adjuvant treatment for stage III colon cancer. N Engl J Med 352:2696–2704PubMedCrossRef Twelves C, Wong A, Nowacki MP, Abt M, Burris H 3rd, Carrato A, Cassidy J, Cervantes A, Fagerberg J, Georgoulias V, Husseini F, Jodrell D, Koralewski P, Kroning H, Maroun J, Marschner N, McKendrick J, Pawlicki M, Rosso R, Schuller J, Seitz JF, Stabuc B, Tujakowski J, Van Hazel G, Zaluski J, Scheithauer W (2005) Capecitabine as adjuvant treatment for stage III colon cancer. N Engl J Med 352:2696–2704PubMedCrossRef
10.
go back to reference Nishimura G, Fujita H, Ninomiya I, Fushida S, Fujimura T, Ohta T (2006) Evidence of increased effect of thymidine phosphorylase by irinotecan: a proof for the intensified efficacy by combination with irinotecan and capecitabine. In: Proceedings of the 2006 Gastrointestinal Cancers Symposium (abstract # 298) Nishimura G, Fujita H, Ninomiya I, Fushida S, Fujimura T, Ohta T (2006) Evidence of increased effect of thymidine phosphorylase by irinotecan: a proof for the intensified efficacy by combination with irinotecan and capecitabine. In: Proceedings of the 2006 Gastrointestinal Cancers Symposium (abstract # 298)
11.
go back to reference Cao S, Durrani FA, Rustum YM (2005) Synergistic antitumor activity of capecitabine in combination with irinotecan. Clin Colorectal Cancer 4:336–343PubMedCrossRef Cao S, Durrani FA, Rustum YM (2005) Synergistic antitumor activity of capecitabine in combination with irinotecan. Clin Colorectal Cancer 4:336–343PubMedCrossRef
12.
go back to reference Delord JP, Pierga JY, Dieras V, Bertheault-Cvitkovic F, Turpin FL, Lokiec F, Lochon I, Chatelut E, Canal P, Guimbaud R, Mery-Mignard D, Cornen X, Mouri Z, Bugat R (2005) A phase I clinical and pharmacokinetic study of capecitabine (Xeloda) and irinotecan combination therapy (XELIRI) in patients with metastatic gastrointestinal tumours. Br J Cancer 92:820–826PubMedCrossRef Delord JP, Pierga JY, Dieras V, Bertheault-Cvitkovic F, Turpin FL, Lokiec F, Lochon I, Chatelut E, Canal P, Guimbaud R, Mery-Mignard D, Cornen X, Mouri Z, Bugat R (2005) A phase I clinical and pharmacokinetic study of capecitabine (Xeloda) and irinotecan combination therapy (XELIRI) in patients with metastatic gastrointestinal tumours. Br J Cancer 92:820–826PubMedCrossRef
13.
go back to reference Rea DW, Nortier JW, Ten Bokkel Huinink WW, Falk S, Richel DJ, Maughan T, Groenewegen G, Smit JM, Steven N, Bakker JM, Semiond D, Kerr DJ, Punt CJ (2005) A phase I/II and pharmacokinetic study of irinotecan in combination with capecitabine as first-line therapy for advanced colorectal cancer. Ann Oncol 16:1123–1132PubMedCrossRef Rea DW, Nortier JW, Ten Bokkel Huinink WW, Falk S, Richel DJ, Maughan T, Groenewegen G, Smit JM, Steven N, Bakker JM, Semiond D, Kerr DJ, Punt CJ (2005) A phase I/II and pharmacokinetic study of irinotecan in combination with capecitabine as first-line therapy for advanced colorectal cancer. Ann Oncol 16:1123–1132PubMedCrossRef
14.
go back to reference Czejka M, Schueller J, Hauer K, Ostermann E (2005) Pharmacokinetics and metabolism of irinotecan combined with capecitabine in patients with advanced colorectal cancer. Anticancer Res 25:2985–2990PubMed Czejka M, Schueller J, Hauer K, Ostermann E (2005) Pharmacokinetics and metabolism of irinotecan combined with capecitabine in patients with advanced colorectal cancer. Anticancer Res 25:2985–2990PubMed
15.
go back to reference Sharma R, Rivory L, Beale P, Ong S, Horvath L, Clarke SJ (2006) A phase II study of fixed-dose capecitabine and assessment of predictors of toxicity in patients with advanced/metastatic colorectal cancer. Br J Cancer 94:964–968PubMedCrossRef Sharma R, Rivory L, Beale P, Ong S, Horvath L, Clarke SJ (2006) A phase II study of fixed-dose capecitabine and assessment of predictors of toxicity in patients with advanced/metastatic colorectal cancer. Br J Cancer 94:964–968PubMedCrossRef
16.
go back to reference Hanna N, Bunn PA Jr, Langer C, Einhorn L, Guthrie T Jr, Beck T, Ansari R, Ellis P, Byrne M, Morrison M, Hariharan S, Wang B, Sandler A (2006) Randomized phase III trial comparing irinotecan/cisplatin with etoposide/cisplatin in patients with previously untreated extensive-stage disease small-cell lung cancer. J Clin Oncol 24:2038–2043 Hanna N, Bunn PA Jr, Langer C, Einhorn L, Guthrie T Jr, Beck T, Ansari R, Ellis P, Byrne M, Morrison M, Hariharan S, Wang B, Sandler A (2006) Randomized phase III trial comparing irinotecan/cisplatin with etoposide/cisplatin in patients with previously untreated extensive-stage disease small-cell lung cancer. J Clin Oncol 24:2038–2043
17.
go back to reference Perry MC (2006) Reponses to Topoisomerase-I inhibitors in extensive small-cell lung cancer: chance or chromosomes? J Clin Oncol 24:1980–1981PubMedCrossRef Perry MC (2006) Reponses to Topoisomerase-I inhibitors in extensive small-cell lung cancer: chance or chromosomes? J Clin Oncol 24:1980–1981PubMedCrossRef
19.
go back to reference Package insert: Irinotecan. http://www.meds.com/colon/camptosar/fullrx.html. Downloaded Aug 7, 2006 Package insert: Irinotecan. http://​www.​meds.​com/​colon/​camptosar/​fullrx.​html.​ Downloaded Aug 7, 2006
20.
go back to reference Product Monograph data on file with Hoffman La Roche, Nutley, NJ, 2004 Product Monograph data on file with Hoffman La Roche, Nutley, NJ, 2004
21.
go back to reference CTC version 2.0. http://ctep.cancer.gov/forms/CTCManual_v4_10-4-99.pdf CTC version 2.0. http://​ctep.​cancer.​gov/​forms/​CTCManual_​v4_​10-4-99.​pdf
22.
go back to reference Miller AB, Hoogstraten B, Staquet M, Winkler A (1981) Reporting results of cancer treatment. Cancer 47:207–214PubMedCrossRef Miller AB, Hoogstraten B, Staquet M, Winkler A (1981) Reporting results of cancer treatment. Cancer 47:207–214PubMedCrossRef
23.
go back to reference de Bruijn P, Willems EW, Loos WJ, Verweij J, Sparreboom A (2004) Indirect determination of the irinotecan metabolite 7-ethyl-10-O-glucuronyl-camptothecin in human samples. Anal Biochem 328:84–86PubMedCrossRef de Bruijn P, Willems EW, Loos WJ, Verweij J, Sparreboom A (2004) Indirect determination of the irinotecan metabolite 7-ethyl-10-O-glucuronyl-camptothecin in human samples. Anal Biochem 328:84–86PubMedCrossRef
24.
go back to reference Hamberg P, Donders RC, ten Bokkel Huinink D (2006) Central nervous system toxicity induced by irinotecan. J Natl Cancer Inst 98:219l Hamberg P, Donders RC, ten Bokkel Huinink D (2006) Central nervous system toxicity induced by irinotecan. J Natl Cancer Inst 98:219l
25.
go back to reference Frickhofen N, Beck FJ, Jung B, Fuhr HG, Andrasch H, Sigmund M (2002) Capecitabine can induce acute coronary syndrome similar to 5-fluorouracil. Ann Oncol 13:797–801PubMedCrossRef Frickhofen N, Beck FJ, Jung B, Fuhr HG, Andrasch H, Sigmund M (2002) Capecitabine can induce acute coronary syndrome similar to 5-fluorouracil. Ann Oncol 13:797–801PubMedCrossRef
26.
go back to reference Cardinale D, Colombo A, Colombo N (2006) Acute coronary syndrome induced by oral capecitabine. Can J Cardiol 22:251–253PubMed Cardinale D, Colombo A, Colombo N (2006) Acute coronary syndrome induced by oral capecitabine. Can J Cardiol 22:251–253PubMed
27.
go back to reference Goel S, Jhawer M, Rajdev L, Hopkins U, Fehn K, Baker C, Chun HG, Makower D, Landau L, Hoffman A, Wadler S, Mani S (2002) Phase I clinical trial of irinotecan with oral capecitabine in patients with gastrointestinal and other solid malignancies. Am J Clin Oncol 25:528–534PubMedCrossRef Goel S, Jhawer M, Rajdev L, Hopkins U, Fehn K, Baker C, Chun HG, Makower D, Landau L, Hoffman A, Wadler S, Mani S (2002) Phase I clinical trial of irinotecan with oral capecitabine in patients with gastrointestinal and other solid malignancies. Am J Clin Oncol 25:528–534PubMedCrossRef
28.
go back to reference Bodurka DC, Levenback C, Wolf JK, Gano J, Wharton JT, Kavanagh JJ, Gershenson DM (2003) Phase II trial of irinotecan in patients with metastatic epithelial ovarian cancer or peritoneal cancer. J Clin Oncol 21:291–297PubMedCrossRef Bodurka DC, Levenback C, Wolf JK, Gano J, Wharton JT, Kavanagh JJ, Gershenson DM (2003) Phase II trial of irinotecan in patients with metastatic epithelial ovarian cancer or peritoneal cancer. J Clin Oncol 21:291–297PubMedCrossRef
29.
go back to reference Rischin D, Phillips KA, Friedlander M, Harnett P, Quinn M, Richardson G, Martin A (2004) A phase II trial of capecitabine in heavily pre-treated platinum-resistant ovarian cancer. Gynecol Oncol 93:417–421PubMedCrossRef Rischin D, Phillips KA, Friedlander M, Harnett P, Quinn M, Richardson G, Martin A (2004) A phase II trial of capecitabine in heavily pre-treated platinum-resistant ovarian cancer. Gynecol Oncol 93:417–421PubMedCrossRef
30.
go back to reference Horstmann E, McCabe MS, Grochow L, Yamamoto S, Rubinstein L, Budd T, Shoemaker D, Emanuel EJ, Grady C (2005) Risks and benefits of phase 1 oncology trials, 1991 through 2002. N Engl J Med 352:895–904PubMedCrossRef Horstmann E, McCabe MS, Grochow L, Yamamoto S, Rubinstein L, Budd T, Shoemaker D, Emanuel EJ, Grady C (2005) Risks and benefits of phase 1 oncology trials, 1991 through 2002. N Engl J Med 352:895–904PubMedCrossRef
31.
go back to reference Roberts TG Jr, Goulart BH, Squitieri L, Stallings SC, Halpern EF, Chabner BA, Gazelle GS, Finkelstein SN, Clark JW (2004) Trends in the risks and benefits to patients with cancer participating in phase 1 clinical trials. JAMA 292:2130–2140 Roberts TG Jr, Goulart BH, Squitieri L, Stallings SC, Halpern EF, Chabner BA, Gazelle GS, Finkelstein SN, Clark JW (2004) Trends in the risks and benefits to patients with cancer participating in phase 1 clinical trials. JAMA 292:2130–2140
32.
go back to reference Rothenberg ML, Meropol NJ, Poplin EA, Van Cutsem E, Wadler S (2001) Mortality associated with irinotecan plus bolus fluorouracil/leucovorin: summary findings of an independent panel. J Clin Oncol 19:3801–3807PubMed Rothenberg ML, Meropol NJ, Poplin EA, Van Cutsem E, Wadler S (2001) Mortality associated with irinotecan plus bolus fluorouracil/leucovorin: summary findings of an independent panel. J Clin Oncol 19:3801–3807PubMed
33.
go back to reference Goel S, Bulgaru A, Hochster H, Wadler S, Zamboni W, Egorin M, Ivy P, Leibes L, Muggia F, Lockwood G, Harvey E, Renshaw G, Mani S (2003) Phase I clinical study of infusional 5-fluorouracil with oxaliplatin and gemcitabine (FOG regimen) in patients with solid tumors. Ann Oncol 14:1682–1687PubMedCrossRef Goel S, Bulgaru A, Hochster H, Wadler S, Zamboni W, Egorin M, Ivy P, Leibes L, Muggia F, Lockwood G, Harvey E, Renshaw G, Mani S (2003) Phase I clinical study of infusional 5-fluorouracil with oxaliplatin and gemcitabine (FOG regimen) in patients with solid tumors. Ann Oncol 14:1682–1687PubMedCrossRef
34.
go back to reference Gold PJ, Godfrey T, Dhami M, Andria M, Fischer D, Chen Y-M, Samid D, Meropol N (2003) Capecitabine and Irinotecan as 1st line therapy for patients with metastatic colorectal cancer. Phase II study preliminary results. In: Proceedings of the 39th annual meeting of the American society of clinical oncology 22:2003 (abstract 1158) Gold PJ, Godfrey T, Dhami M, Andria M, Fischer D, Chen Y-M, Samid D, Meropol N (2003) Capecitabine and Irinotecan as 1st line therapy for patients with metastatic colorectal cancer. Phase II study preliminary results. In: Proceedings of the 39th annual meeting of the American society of clinical oncology 22:2003 (abstract 1158)
35.
go back to reference Grothey K, Jordan O, Kellner C, Constantin G, Dittrich H, Kroening L, Mantovani C, Schlichting H, Forstbauer H-J, (2003) Schmoll Randomized Phase II trial of capecitabine plus irinotecan (capiri) vs capecitabine plus oxaliplatin (capox) as first line therapy of advanced colorectal cancer (ACRC). In: Proceedings of the 39th annual meeting of the American society of clinical oncology 22:2003 (abstract 1022) Grothey K, Jordan O, Kellner C, Constantin G, Dittrich H, Kroening L, Mantovani C, Schlichting H, Forstbauer H-J, (2003) Schmoll Randomized Phase II trial of capecitabine plus irinotecan (capiri) vs capecitabine plus oxaliplatin (capox) as first line therapy of advanced colorectal cancer (ACRC). In: Proceedings of the 39th annual meeting of the American society of clinical oncology 22:2003 (abstract 1022)
36.
go back to reference Tabata T, Katoh M, Tokudome S, Nakajima M, Yokoi T (2004) Identification of the cytosolic carboxylesterase catalyzing the 5′-deoxy-5-fluorocytidine formation from capecitabine in human liver. Drug Metab Dispos 32:1103–1110PubMedCrossRef Tabata T, Katoh M, Tokudome S, Nakajima M, Yokoi T (2004) Identification of the cytosolic carboxylesterase catalyzing the 5′-deoxy-5-fluorocytidine formation from capecitabine in human liver. Drug Metab Dispos 32:1103–1110PubMedCrossRef
37.
go back to reference Sanghani SP, Quinney SK, Fredenburg TB, Sun Z, Davis WI, Murry DJ, Cummings OW, Seitz DE, Bosron WF (2003) Carboxylesterases expressed in human colon tumor tissue and their role in CPT-11 hydrolysis. Clin Cancer Res 9:4983–4991PubMed Sanghani SP, Quinney SK, Fredenburg TB, Sun Z, Davis WI, Murry DJ, Cummings OW, Seitz DE, Bosron WF (2003) Carboxylesterases expressed in human colon tumor tissue and their role in CPT-11 hydrolysis. Clin Cancer Res 9:4983–4991PubMed
Metadata
Title
Pharmacokinetic and safety study of weekly irinotecan and oral capecitabine in patients with advanced solid cancers
Authors
Sanjay Goel
Kavita Desai
Sirisha Karri
Radharani Gollamudi
Imran Chaudhary
Anca Bulgaru
Andreas Kaubisch
Gary Goldberg
Mark Einstein
Fernando Camacho
Sharyn Baker
Sridhar Mani
Publication date
01-06-2007
Published in
Investigational New Drugs / Issue 3/2007
Print ISSN: 0167-6997
Electronic ISSN: 1573-0646
DOI
https://doi.org/10.1007/s10637-006-9028-1

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