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A study of mirabegron in young children with neurogenic detrusor overactivity

Mirabegron in Young Children Study | Astellas Clinical Trials

A study to learn how [14C]ASP0367 is processed by the body in healthy men

14C ASP0367 In Males Study | Astellas Clinical Trials

A Study of Gilteritinib (ASP2215) Combined with Chemotherapy in Children, Adolescents and Young Adults with FMS-like Tyrosine Kinase 3 (FLT3)/Internal Tandem Duplication (ITD) Positive Relapsed or Refractory Acute Myeloid Leukemia (AML)

Gilteritnib and Chemotherapy Study | Astellas Clinical Trials

A study to find the best dose of ASP5354 to show lymph nodes in people with breast cancer or melanoma during surgery

ASP5354 to Show Lymph Nodes Study | Astellas Clinical Trials

A Study of Intravesical Enfortumab Vedotin For Treatment of Patients With Non-muscle Invasive Bladder Cancer (NMIBC)

Intravesical Enfortumab Vedotin for Bladder Cancer Study | Astellas Clinical Trials

A study of the safety and tolerability of ASP7317 in adults who are losing their clear, sharp central vision due to geographic atrophy secondary to dry age-related macular degeneration

ASP7317 for Geographic Atrophy Study | Astellas Clinical Trials

A Study to Assess the Antitumor Activity, Safety, Pharmacokinetics and Biomarkers of Zolbetuximab (IMAB362) in Participants with Claudin (CLDN) 18.2 Positive, Metastatic or Advanced Unresectable Gastric and Gastroesophageal Junction (GEJ) Adenocarcinoma

Zolbetuximab Study | Astellas Clinical Trials

A Study of an Intratumoral Oncolytic Virus in Patients with Advanced Metastatic Solid Tumors

Intratumoral Oncolytic Virus Study | Astellas Clinical Trials

A Study to Assess ASP0598 Otic Solution Following Topical Application in the Ear in Subjects with Chronic Tympanic Membrane Perforation (CTMP)

ASP058 Otic Solution Study | Astellas Clinical Trials

A study to evaluate ASP0367 in participants with primary mitochondrial myopathy

ASP0367 Study for Primary Mitochondrial Myopathy | Astellas Clinical Trials

A study of ASP2138 in adults with stomach cancer or pancreatic cancer

ASP2138 Study for Stomach or Pancreatic Cancer | Astellas Clinical Trials

A study about how ASP5354 affects the body in healthy adults and in adults whose kidneys do not work well

ASP5354 for Healthy Adults and Adults with Poor Kidneys | Astellas Clinical Trials

A Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study

Prostate Cancer Study for Previous Participation in Enzalutamide  | Astellas Clinical Trials

A Study to Assess the Efficacy and Safety of IMAB362 in Combination with Nab-Paclitaxel and Gemcitabine (Nab-P + GEM) as First Line Treatment in Subjects with Claudin 18.2 (CLDN18.2) Positive, Metastatic Pancreatic Adenocarcinoma

IMAB362 with Nab P and GEM Study for Pancreatic Cancer  | Astellas Clinical Trials

A study of gilteritinib, venetoclax and azacitidine as a combined treatment for people newly diagnosed with acute myeloid leukemia

Gilteritinib Venetoclax and Azacitidine Study for Acute Myeloid Leukemia | Astellas Clinical Trials

A Study Investigating the Safety, Tolerability and Efficacy of ASP7517 in Subjects with Relapsed/Refractory Acute Myeloid Leukemia (AML) and Relapsed/Refractory Higher Risk Myelodysplastic Syndrome (MDS)

ASP7517 for Acute Myeloid Leukimia | Astellas Clinical Trials

A study to evaluate ASP0367 in participants with reduced maximum oxygen uptake due to poor systemic oxygen extraction

ASP0367 for Reduced Maxiumum Oxygen Uptake Study | Astellas Clinical Trials

A study of ASP3082 in adults with previously treated solid tumors

ASP3082 for Solid Tumors Study | Astellas Clinical Trials

A Study of ASP1570 in adults with locally advanced or metastatic solid tumors

ASP1570 for Advanced or Metastatic Tumors Study | Astellas Clinical Trials

Study of ASP7517 Alone and with Pembrolizumab in Participants with Advanced Solid Tumors Expressing WT1 Antigen

ASP7517 with Pembrolizumab Study | Astellas Clinical Trials

A Safety Surveillance Study in Subjects with Macular Degenerative Disease Treated with Human Embryonic Stem Cell-derived Retinal Pigment Epithelial Cell Therapy

Macular Degenerative Disease Study | Astellas Clinical Trials

A study to evaluate mirabegron in pediatric participants from 5 to less than 18 years of age with overactive bladder (OAB)

Mirabegron Study in Children with OAB Study | Astellas Clinical Trials

Study of ASP0739 Alone and with Pembrolizumab in Advanced Solid Tumors with NY-ESO-1 Expression Participants

ASP0739 with Pembrolizumab Study For Solid Tumors| Astellas Clinical Trials

A study of ASP0367 in people with kidneys that do not work well and in healthy people

ASP0367 Study for Adults with Poor Kidneys | Astellas Clinical Trials

Enfortumab vedotin and pembrolizumab vs. chemotherapy alone in untreated locally advanced or metastatic urothelial cancer

Enfortumab Vedotin and Pembrolizumab vs Chemotherapy Study | Astellas Clinical Trials

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Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as compounds terminated during development.  Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared.  Conditions and exceptions are described under the Sponsor Specific Details for Astellas on www.clinicalstudydatarequest.com.

Participants from birth to < 6 years of age received weight based doses of fidaxomicin oral suspension (32 mg/kg/day with a maximum dose of 400 mg/day divided in 2 doses) 2 times daily for 10 days. Participants aged ≥ 6 years to < 18 years of age received a 200 mg fidaxomicin tablet 2 times daily for 10 days.

Participants from birth to < 6 years of age received weight based doses of vancomycin oral liquid (40 mg/kg/day with a maximum dose of 500 mg/day divided in 4 doses) 4 times daily for 10 days. Participants aged ≥ 6 years to < 18 years of age received a 125 mg vancomycin capsule 4 times daily for 10 days.

2819-cl-0202-clrrs-02-disc01-en-final-02.pdf

2819-cl-0202-clls-disc01-en-final-03.pdf

NCT02218372_Prot_000.pdf

NCT02218372_SAP_001.pdf

The purpose of this study was to investigate the clinical response to fidaxomicin oral suspension or tablets and vancomycin oral liquid or capsules in pediatric participants with Clostridium difficile-associated diarrhea (CDAD). It also investigated the recurrence/sustained clinical response to and safety of fidaxomicin and vancomycin, as well as acceptance of the fidaxomicin oral suspension formulation.

A study to investigate the safety and efficacy of fidaxomicin (oral suspension or tablets) and vancomycin (oral liquid or capsules) in pediatric subjects with Clostridium difficile-associated Diarrhea (CDAD)

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Participants from birth to < 6 years of age received weight based doses of fidaxomicin oral suspension (32 mg/kg/day with a maximum dose of 400 mg/day divided in 2 doses) 2 times daily for 10 days.

Participants aged ≥ 6 years to < 18 years of age received a 200 mg fidaxomicin tablet 2 times daily for 10 days.

Participants from birth to < 6 years of age received weight based doses of vancomycin oral liquid (40 mg/kg/day with a maximum dose of 500 mg/day divided in 4 doses) 4 times daily for 10 days.

Participants aged ≥ 6 years to < 18 years of age received a 125 mg vancomycin capsule 4 times daily for 10 days.

Link to results on Astellas Clinical Study Results website

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A Phase 3, Multicenter, Investigator-blind, Randomized, Parallel Group Study to Investigate the Safety and Efficacy of Fidaxomicin Oral Suspension or Tablets Taken q12h, and Vancomycin Oral Liquid or Capsules Taken q6h, for 10 Days in Pediatric Subjects with Clostridium difficile-associated Diarrhea

Age Continuous

Sex: Female, Male

Race/Ethnicity, Customized

Ethnicity

Study Specific Measure

The baseline analysis set consisted of the Intent-to-treat (ITT) population. The ITT analysis set consisted of all randomized participants, irrespective of a participant having received a study drug (fidaxomicin or vancomycin) or not.

Initial clinical response (ICR) for ages from birth to < 2 years was defined as absence of watery diarrhea for 2 consecutive treatment days, remaining well until study drug discontinuation. ICR for ages ≥ 2 years to < 18 years was defined as improvement in number and character of bowel movements as determined by < 3 unformed bowel movements (UBMs) per day for 2 consecutive treatment days, remaining well until study drug discontinuation. CCR was defined for both age groups as not requiring further CDAD therapy within 2 days after study drug completion, and was reported with a positive (Yes) or negative (No) outcome. Resolution of diarrhea was assessed during interviews of participant/parent/legal guardian, supplemented by review of personal records (if hospitalized) and checked for presence of watery diarrhea (ages from birth to < 2 years) or number of UBMs (for ages ≥ 2 years to < 18 years).

Adjusted difference of CCR at EOT + 2 Days. Adjusted treatment difference of proportions was calculated using a stratified Cochran-Mantel-Haenszel (CMH) method. Newcombe 95% confidence intervals (CIs) presented for adjusted treatment difference.

The analysis population consisted of the full analysis set (FAS) which consisted of all randomized participants who received at least 1 dose of study drug. In the FAS, participants were allocated to the treatment arm corresponding to the study medication that the participant was randomized to (treatment allocation as randomized).

Percentage of Participants with Confirmed Clinical Response (CCR) at End of Treatment (EOT) +2 Days

SCR at EOT + 9 days was defined as CCR (EOT + 2 days) without CDAD recurrence until assessment at EOT +9 days during the follow-up period. Recurrence for ages from birth to < 2 years was defined as re-establishment of watery diarrhea after CCR to an extent that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic Clostridium difficile (C. difficile) in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy. Recurrence for ages ≥ 2 years < 18 years was defined as re-establishment of diarrhea after CCR to an extent (as measured by the frequency of UBMs) that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy.

Adjusted difference of SCR at EOT +9 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

The analysis population consisted of the FAS (participants with CCR at EOT +2 days).

Percentage of Participants with Sustained Clinical Response (SCR) at EOT +9 Days

GC was reported as a positive (Yes) or negative (No) outcome and was calculated using SCR and ICR/CCR values according to the following conditions: ● if ICR/CCR=Yes and SCR=Yes, then Global Cure was Yes. ● if ICR/CCR=Yes and SCR =No, then Global Cure was No. ● if ICR/CCR=No (SCR not assessed), then Global Cure was No. ● if ICR/CCR=Missing (SCR not assessed), then Global Cure was set to No. No multiple imputation method (MI) was used for global cure at EOT + 9 days.

Adjusted difference of GC at EOT +9 days. Adjusted treatment difference of rates was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

The analysis population consisted of the FAS.

Percentage of Participants with Global Cure (GC) at EOT +9 Days

Recurrence for ages from birth to < 2 years was defined as re-establishment of watery diarrhea after CCR to an extent that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy. Recurrence for ages ≥ 2 years < 18 years was defined as re-establishment of diarrhea after CCR to an extent (as measured by the frequency of UBMs) that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy.

Adjusted difference of CDAD recurrence at EOT +9 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with Recurrence of CDAD at EOT +9 Days

SCR at EOT + 16 days was defined as CCR (EOT + 2 days) without CDAD recurrence until assessment at EOT + 16 days during the follow-up period. Recurrence for ages from birth to < 2 years was defined as re-establishment of watery diarrhea after CCR to an extent that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy. Recurrence for ages ≥ 2 years < 18 years was defined as re-establishment of diarrhea after CCR to an extent (as measured by the frequency of UBMs) that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy.

Adjusted difference of SCR at EOT +16 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with SCR at EOT +16 Days

GC was reported as a positive (Yes) or negative (No) outcome and was calculated using SCR and ICR/CCR values according to the following conditions: ● if ICR/CCR=Yes and SCR=Yes, then Global Cure was Yes. ● if ICR/CCR=Yes and SCR =No, then Global Cure was No. ● if ICR/CCR=No (SCR not assessed), then Global Cure was No. ● if ICR/CCR=Missing (SCR not assessed), then Global Cure was set to No. No multiple imputation method (MI) was used for global cure at EOT + 16 days.

Adjusted difference of GC at EOT +16 days. Adjusted treatment difference of rates was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with GC at EOT +16 Days

Adjusted difference of CDAD Recurrence at EOT +16 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with Recurrence of CDAD at EOT +16 Days

SCR at EOT + 23 days was defined as CCR (EOT + 2 days) without CDAD recurrence until assessment at EOT + 16 days during the follow-up period. Recurrence for ages from birth to < 2 years was defined as re-establishment of watery diarrhea after CCR to an extent that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy. Recurrence for ages ≥ 2 years < 18 years was defined as re-establishment of diarrhea after CCR to an extent (as measured by the frequency of UBMs) that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy.

Adjusted difference of SCR at EOT +23 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with SCR at EOT +23 Days

GC was reported as a positive (Yes) or negative (No) outcome and was calculated using SCR and ICR/CCR values according to the following conditions: ● if ICR/CCR=Yes and SCR=Yes, then Global Cure was Yes. ● if ICR/CCR=Yes and SCR =No, then Global Cure was No. ● if ICR/CCR=No (SCR not assessed), then Global Cure was No. ● if ICR/CCR=Missing (SCR not assessed), then Global Cure was set to No. No multiple imputation method (MI) was used for global cure at EOT + 23 days.

Adjusted difference of GC at EOT +23 days. Adjusted treatment difference of rates was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with GC at EOT +23 Days

Adjusted difference of CDAD Recurrence at EOT +23 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with Recurrence of CDAD at EOT +23 Days

SCR at EOS was defined as CCR (EOT + 2 days) without CDAD recurrence until assessment at EOS (EOT + 30 days) during the follow-up period. Recurrence for ages from birth to < 2 years was defined as re-establishment of watery diarrhea after CCR to an extent that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy. Recurrence for ages ≥ 2 years < 18 years was defined as re-establishment of diarrhea after CCR to an extent (as measured by the frequency of UBMs) that was greater than that noted on the last day of study drug with positive direct or indirect testing for the presence of toxigenic C. difficile in stool and that, in the investigator's opinion, required retreatment with CDAD anti-infective therapy.

Adjusted difference of SCR at EOS (EOT +30 days). Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with SCR at End of Study (EOS) (EOT +30 Days)

GC was reported as a positive (Yes) or negative (No) outcome and was calculated using SCR and ICR/CCR values according to the following conditions: ● if ICR/CCR=Yes and SCR=Yes, then Global Cure was Yes. ● if ICR/CCR=Yes and SCR =No, then Global Cure was No. ● if ICR/CCR=No (SCR not assessed), then Global Cure was No. ● if ICR/CCR=Missing (SCR not assessed), then Global Cure was set to No. Global Cure at EOT +30 days was derived using MI in case ICR/CCR=Missing (SCR not assessed) following Rubin’s multiple imputation method.

Adjusted difference of GC at EOS (EOT +30 days). Adjusted treatment difference of rates was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with GC at EOS (EOT +30 Days)

Adjusted difference of CDAD recurrence at EOS/EOT +30 days. Adjusted treatment difference of proportions was calculated using a stratified CMH method. Newcombe 95% CIs presented for adjusted treatment difference.

Percentage of Participants with Recurrence of CDAD at EOS (EOT +30 Days)

TTROD for ages from birth < 2 years was defined as time elapsing (hours rounded up from minutes > 30) from treatment start (time of first study drug dose) to diarrhea resolution (time of last episode of watery diarrhea the day prior to the first of 2 consecutive days without watery diarrhea sustained through EOT). TTROD for ages ≥ 2 years to < 18 years was defined as time elapsing (hours rounded up from minutes > 30) from treatment start (time of first dose) to diarrhea resolution (time of the last UBM the day prior to the first of 2 consecutive days of < 3 UBMs sustained through EOT). TTROD by Kaplan-Meier Method. Those who completed treatment but did not show diarrhea resolution until EOT were censored at Day 10/240 hours. Those who did not complete treatment, discontinued earlier but did not show diarrhea resolution until disc. day were censored at disc. (days converted to hours). Those whose diarrhea did not continue after first dose were included with a TTROD of 1 hour.

Time to Resolution of Diarrhea (TTROD)

Time to recurrence was defined as the time (days) from CCR until the onset of recurrence. Time to recurrence of CDAD by Kaplan-Meier Method. Data for median was estimated and the 95% CI could not be estimated due to low event rate. Data not estimable denoted as NA. Participants with CCR at EOT+2 days, who completed the follow-up period but did not experience a recurrence of CDAD were censored at EOT+30 days and those who did not complete the follow-up period and discontinued during this period and did not experience a recurrence of CDAD were censored at day of discontinuation.