A Phase 1 interventional study of oseltamivir [Tamiflu] in Influenza, sponsored by Hoffmann-La Roche. Completed at 38 sites in 3 countries. Open to participants aged 1 Year to 12 Years. Per ClinicalTrials.gov, last updated 2016-08-24.
Sponsored by Hoffmann-La Roche · Phase 1, Interventional, and Treatment
This open-label study will assess the pharmacokinetics/pharmacodynamics and safety of intravenous (iv) Tamiflu (oseltamivir) in 3 cohorts of children, aged 6-12, 3-5 and 1-2 years, with influenza infection. Patients will receive iv Tamiflu therapy for 5 days (10 doses). For patients whose conditions no longer merit continued iv dosing, therapy may be switched to oral Tamiflu to complete their prescribed course of treatment. If medically necessary, iv or oral therapy with Tamiflu may be continued for up to 5 additional days. Anticipated time on study treatment is 5 to 10 days.
2,214 studies on the registry are indexed under Influenza, Human; 163 are open to participants now.
This study's enrollment of 8 is below the median of 238 across 1,853 interventional studies indexed under Influenza, Human.
Browse Influenza, Human studies →Hoffmann-La Roche is the lead sponsor of 2,061 studies on the registry; 85 are open to participants now.
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Exclusion Criteria:
Drug: oseltamivir [Tamiflu]
5-day course (10 doses), intravenous administration, may be switched to oral administration at the discretion of the investigator; up to 5 additional days of treatment possible.
Area Under the Concentration Versus Time Curve From Time Zero to Last Measurable Plasma Concentration (AUClast) of Oseltamivir and Oseltamivir Carboxylate on Day 1
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion.
AUClast of Oseltamivir and Oseltamivir Carboxylate on Day 2
Time frame: Day 2: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
AUClast of Oseltamivir and Oseltamivir Carboxylate on Day 3
Time frame: Day 3 (with or after fifth dose): 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
AUClast of Oseltamivir and Oseltamivir Carboxylate on Day 4
Time frame: Day 4: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
AUClast of Oseltamivir and Oseltamivir Carboxylate on Day 5
Time frame: Day 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Maximum Observed Plasma Concentration (Cmax) of Oseltamivir and Oseltamivir Carboxylate Day 1
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion
Cmax of Oseltamivir and Oseltamivir Carboxylate Day 2
Time frame: Day 2: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Cmax of Oseltamivir and Oseltamivir Carboxylate Day 3
Time frame: Day 3 (with or after fifth dose): 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Cmax of Oseltamivir and Oseltamivir Carboxylate Day 4
Time frame: Day 4: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Cmax of Oseltamivir and Oseltamivir Carboxylate Day 5
Time frame: Day 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Time to the Maximum Observed Plasma Concentration (Tmax) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Last Measurable Plasma Concentration (Clast) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Time of the Last Measurable Plasma Concentration (Tlast) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Elimination Rate Constant (ke) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Total Clearance of Drug (CL) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Volume of Distribution (V) of Oseltamivir and Oseltamivir Carboxylate
Time frame: Day 1: 15 minutes pre-infusion start, 1, 2, 3, 4, 6, 8, 12 hours post start of infusion; Day 2, 3 (with or after fifth dose), 4 or 5: 15 minutes pre-infusion start, 2, 4, 8 hours after start of infusion
Participants With Greater Than or Equal to (>=) 5-Fold Change in Neuraminidase Inhibition (NAI) Assay 50 Percent (%) Inhibitory Concentration (IC50) Values
IC50 was defined as the concentration that causes 50% inhibition of viral activity. IC50 values were calculated using NAI assay. The 5-fold change was calculated as either \>=5 times change in the NAI IC50 visit value from the Reference value at a visit, \>=5 times change in the NAI IC50 Visit value from the Baseline value.
Time frame: Baseline, Day 1, 6 and 30
| Milestone | Oseltamivir: Overall |
|---|---|
| Started | 8 |
| Completed | 7 |
| Not completed | 1 |
| Withdrew: Withdrawal by subject | 1 |
| hour*nanogram/milliliter (h*ng/mL) | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 829 | 1460 ± 46.3 | — |
| Oseltamivir Carboxylate | 1700 | 4550 ± 61.1 | — |
| h*ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | — | 1070 | 1920 |
| Oseltamivir Carboxylate | — | 5970 | 6760 |
| hr*ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 943 | — | — |
| Oseltamivir Carboxylate | 2000 | — | — |
| hr*ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | — | 2480 | — |
| Oseltamivir Carboxylate | — | 3800 | — |
| hr*ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 1010 | — | — |
| Oseltamivir Carboxylate | 2820 | — | — |
| nanograms/milliliter (ng/mL) | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 360 | 753 ± 36.9 | — |
| Oseltamivir Carboxylate | 311 | 499 ± 55.1 | — |
| ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | — | 500 | 1270 |
| Oseltamivir Carboxylate | — | 663 | 725 |
| ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 404 | — | — |
| Oseltamivir Carboxylate | 237 | — | — |
| ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | — | 915 | — |
| Oseltamivir Carboxylate | — | 549 | — |
| ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Oseltamivir | 403 | — | — |
| Oseltamivir Carboxylate | 408 | — | — |
| hours | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Day 1: Oseltamivir (n = 1, 3, 0) | 2.00 | 1.26 ± 41.7 | NA ± NA |
| Day 1: Oseltamivir Carboxylate (n = 1, 3, 0) | 4.00 | 4.61 ± 53.3 | NA ± NA |
| Day 2: Oseltamivir (n = 0, 1, 1) | NA ± NA | 2.00 ± NA | 1.00 |
| Day 2: Oseltamivir Carboxylate (n = 0, 1, 1) | NA ± NA | 4.62 ± NA | 6.00 |
| Day 3: Oseltamivir (n = 1, 0, 0) | 1.05 | NA ± NA | NA ± NA |
| Day 3: Oseltamivir Carboxylate (n = 1, 0, 0) | 3.05 | NA ± NA | NA ± NA |
| Day 4: Oseltamivir (n = 0, 1, 0) | NA ± NA | 2.50 ± NA | NA ± NA |
| Day 4: Oseltamivir Carboxylate (n = 0, 1, 0) | NA ± NA | 8.05 ± NA | NA ± NA |
| Day 5: Oseltamivir (n = 1, 0, 0) | 2.00 | NA ± NA | NA ± NA |
| Day 5: Oseltamivir Carboxylate (n = 1, 0, 0) | 4.08 | NA ± NA | NA ± NA |
| ng/mL | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Day 1: Oseltamivir (n = 1, 3, 0) | 4.40 | 2.41 ± 80.6 | NA ± NA |
| Day 1: Oseltamivir Carboxylate (n = 1, 3, 0) | 237 | 308 ± 74.4 | NA ± NA |
| Day 2: Oseltamivir (n = 0, 2, 1) | NA ± NA | 25.2 ± 1704911.2 | 4.76 |
| Day 2: Oseltamivir Carboxylate (n = 0, 2, 1) | NA ± NA | 319 ± 0.44 | 484 |
| Day 3: Oseltamivir (n = 1, 0, 0) | 2.60 | NA ± NA | NA ± NA |
| Day 3: Oseltamivir Carboxylate (n = 1, 0, 0) | 149 | NA ± NA | NA ± NA |
| Day 4: Oseltamivir (n = 0, 1, 0) | NA ± NA | 25.1 ± NA | NA ± NA |
| Day 4: Oseltamivir Carboxylate (n = 0, 1, 0) | NA ± NA | 549 ± NA | NA ± NA |
| Day 5: Oseltamivir (n = 1, 0, 0) | 15.1 | NA ± NA | NA ± NA |
| Day 5: Oseltamivir Carboxylate (n = 1, 0, 0) | 339 | NA ± NA | NA ± NA |
| hours | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|
| Day 1: Oseltamivir (n = 1, 3, 0) | 7.42 | 10.50 ± 23.4 | NA ± NA |
| Day 1: Oseltamivir Carboxylate (n = 1, 3, 0) | 7.42 | 11.98 ± 0.2 | NA ± NA |
| Day 2: Oseltamivir (n = 0, 2, 1) | NA ± NA | 3.50 ± 448.5 | 12.00 |
| Day 2: Oseltamivir Carboxylate (n = 0, 2, 1) | NA ± NA | 3.50 ± 448.47 | 12.00 |
| Day 3: Oseltamivir (n = 1, 0, 0) | 10.13 | NA ± NA | NA ± NA |
| Day 3: Oseltamivir Carboxylate (n = 1, 0, 0) | 10.13 | NA ± NA | NA ± NA |
| Day 4: Oseltamivir (n = 0, 1, 0) | NA ± NA | 8.05 ± NA | NA ± NA |
| Day 4: Oseltamivir Carboxylate (n = 0, 1, 0) | NA ± NA | 8.05 ± NA | NA ± NA |
| Day 5: Oseltamivir (n = 1, 0, 0) | 7.92 | NA ± NA | NA ± NA |
| Day 5: Oseltamivir Carboxylate (n = 1, 0, 0) | 7.92 | NA ± NA | NA ± NA |
No measurements were reported for this outcome.
No measurements were reported for this outcome.
No measurements were reported for this outcome.
IC50 was defined as the concentration that causes 50% inhibition of viral activity. IC50 values were calculated using NAI assay. The 5-fold change was calculated as either \>=5 times change in the NAI IC50 visit value from the Reference value at a visit, \>=5 times change in the NAI IC50 Visit value from the Baseline value.
| Participants | Oseltamivir: Overall | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|---|
| Day 1 (n=6, 2, 3, 1) | 1 | 0 | 1 | 0 |
| Day 6 (n=1, 0, 1, 0) | 1 | NA | 1 | NA |
| Day 30 (n=1, 1, 0, 0) | 0 | 0 | NA | NA |
Collected over Up to 30 days. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Oseltamivir: Overall | — | 2/8 (25%) | 5/8 (62.5%) |
| Oseltamivir: 6 to 12 Years | — | 1/2 (50%) | 0/2 (0%) |
| Oseltamivir: 3 to 5 Years | — | 1/5 (20%) | 4/5 (80%) |
| Oseltamivir: 1 to 2 Years | — | 0/1 (0%) | 1/1 (100%) |
| Event | Oseltamivir: Overall | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|---|
| BronchospasmRespiratory, thoracic and mediastinal disorders | 1/8 | 1/2 | 0/5 | 0/1 |
| SepsisInfections and infestations | 1/8 | 0/2 | 1/5 | 0/1 |
| PyrexiaGeneral disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Event | Oseltamivir: Overall | Oseltamivir: 6 to 12 Years | Oseltamivir: 3 to 5 Years | Oseltamivir: 1 to 2 Years |
|---|---|---|---|---|
| Drug Withdrawal SyndromeGeneral disorders | 1/8 | 0/2 | 0/5 | 1/1 |
| Left Ventricular DysfunctionCardiac disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Catheter Site ErosionGeneral disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Device ExpulsionGeneral disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Infusion Site ErythemaGeneral disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Body Temperature IncreasedInvestigations | 1/8 | 0/2 | 1/5 | 0/1 |
| CoughRespiratory, thoracic and mediastinal disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| RhinorrhoeaRespiratory, thoracic and mediastinal disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Ingrowing NailSkin and subcutaneous tissue disorders | 1/8 | 0/2 | 1/5 | 0/1 |
| Pain of SkinSkin and subcutaneous tissue disorders | 1/8 | 0/2 | 1/5 | 0/1 |
All-participants population included all participants who were enrolled in the study.
| Age, Continuous(years) | Oseltamivir: Overall |
|---|---|
| Mean | 4.8 ± 3.1 |
| Sex: Female, Male(Participants) | Oseltamivir: Overall |
|---|---|
| Female | 2 |
| Male | 6 |
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