A Safety and Dose-Determining Study of CMX001 In Infants With Neonatal Herpes Simplex Virus (HSV) Infection Involving the Central Nervous System (CNS Disease)
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ClinicalTrials.gov Identifier: NCT01610765 |
Recruitment Status :
Withdrawn
(Study terminated because unable to obtain access to study drug for study population.)
First Posted : June 4, 2012
Last Update Posted : June 7, 2016
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Condition or disease | Intervention/treatment | Phase |
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Herpes Simplex Virus | Drug: Novel Antiviral Drug Drug: Placebo | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 0 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Care Provider, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Safety and Dose-Determining Study of CMX001 In Infants With Neonatal Herpes Simplex Virus (HSV) Infection Involving the Central Nervous System (CNS Disease) |
Study Start Date : | January 2016 |
Estimated Primary Completion Date : | June 2017 |
Estimated Study Completion Date : | June 2017 |

Arm | Intervention/treatment |
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Active Comparator: Novel Antiviral Drug
Subjects will be randomized to receive one of 3 oral doses of a Novel Antiviral Drug: 0.50 mg/kg/dose, 1.0 mg/kg/dose or 2.0 mg/kg/dose twice a week for up to 3 weeks during the time in which the 21 day administration of parenteral acyclovir is being administered
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Drug: Novel Antiviral Drug
4 oral doses of a Novel Antiviral Drug: 0.25 mg/kg/dose, 0.50 mg/kg/dose, 1.0 mg/kg/dose or 2.0 mg/kg/dose twice a week for 3 weeks during the time in which the 21 day administration of parenteral acyclovir is being administered. Subjects will be assigned a the higher dose of study drug after the DSMB and sponsor determine that reported adverse events and the PK data show that it is safe to increase dosing to the next higher level. |
Placebo Comparator: Placebo
Subjects will be randomized to receive one of 3 oral doses of placebo matched in volume to active drug: 0.50 mg/kg/dose, 1.0 mg/kg/dose or 2.0 mg/kg/dose twice a week for up to 3 weeks during the time in which the 21 day administration of parenteral acyclovir is being administered
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Drug: Placebo
4 oral doses of placebo matching the a Novel Antiviral Drug assigned dose: 0.25 mg/kg/dose, 0.50 mg/kg/dose, 1.0 mg/kg/dose or 2.0 mg/kg/dose twice a week for 3 weeks during the time in which the 21 day administration of parenteral acyclovir is being administered. Subjects will be assigned a the higher dose of study drug after the DSMB and sponsor determine that reported adverse events and the PK data show that it is safe to increase dosing to the next higher level. |
- Evaluate the safety and tolerability of CMX001 oral suspension in infants being treated for neonatal HSV CNS disease. [ Time Frame: Baseline through day 21 ]
- Determine the plasma pharmacokinetics of the CMX001 and cidofovir following administration of CMX001 oral suspension in infants being treated for neonatal HSV CNS disease. [ Time Frame: Baseline through day 21 ]
- Explore a plasma drug concentration-response relationship between CMX001 exposure and quantity of HSV DNA in cerebrospinal fluid (CSF) at Day 4 of antiviral therapy [ Time Frame: Baseline through day 21 ]
- Explore a plasma drug concentration-response relationship between cidofovir exposure and quantity of HSV DNA in cerebrospinal fluid (CSF) at Day 4 of antiviral therapy [ Time Frame: Baseline through day 56 (end of study) ]

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Ages Eligible for Study: | up to 98 Days (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Signed Informed Consent by parent or legal guardian of study subject
- Virologically confirmed HSV infection [e.g., positive culture, DNA detection by polymerase chain reaction (PCR), or direct fluorescent antibody stain from any body site or compartment]
- Evidence of CNS involvement of HSV disease [e.g., CSF pleocytosis, positive CSF PCR testing, clinical or electroencephalogram (EEG) seizure activity, neuroimaging abnormality)
- Starting parenteral acyclovir therapy at time of initiation of CMX001 study drug or receiving parenteral acyclovir therapy for ≤ 72 hours before start CMX001 study drug
- ≤ 6 weeks (42 days) of age at time of initial onset of disease symptoms or signs
- Weight at study enrollment ≥ 2,630 grams
- Gestational age ≥ 36 weeks at delivery
- Mother tested negative for HIV during or following pregnancy
Exclusion Criteria:
- Imminent demise
- Disseminated or skin/eye/mouth (SEM) neonatal HSV disease classifications
- Gastrointestinal abnormality which might preclude absorption of an oral medication (e.g., history of necrotizing enterocolitis, gastroschisis, malrotation, etc.)
- Birth weight < 2,500 grams
- Birth weight > 4,500 grams
- Grade 3 or 4 vomiting, utilizing the DAIDS Toxicity Tables (Appendix B)
- Grade 3 or 4 diarrhea, utilizing the DAIDS Toxicity Tables (Appendix B)
- Creatinine clearance < 15 mL/min/1.73m2
- Serum albumin < 2.0 g/dL
- Alanine aminotransferase (ALT) ≥ 2.6-times upper limit normal (ULN)
- Aspartate aminotransferase (AST) ≥ 2.6-times upper limit normal (ULN)
- Direct bilirubin > 2 mg/dL
- Known immunodeficiency
- Known congenital infection (e.g., symptomatic congenital cytomegalovirus infection; syphilis; congenital toxoplasmosis)
- Congenital heart disease (e.g., patent ductus arteriosus, Tetralogy of Fallot, hypoplastic left heart syndrome, AV canal, VSD, ASD, transposition of the great arteries, hypoplastic right ventricle, truncus arteriosus, pulmonic stenosis, Ebstein anomaly, coarctation of the aorta, interrupted aortic arch, double outlet right ventricle, dilated cardiomyopathy)
- Infants currently receiving or anticipated to need treatment with digoxin that cannot be withheld for the duration of CMX001 therapy
- Infants currently receiving or anticipated to need treatment with ketaconazole that cannot be withheld for the duration of CMX001 therapy
- Receipt of investigation drugs within 30 days prior to enrollment
- Concurrent enrollment or participation in any other interventional research study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01610765

Principal Investigator: | David W Kimberlin, MD | University of Alabama at Birmingham | |
Principal Investigator: | Richard Whitley, MD | University of Alabama at Birmingham |
Responsible Party: | David Kimberlin, MD, Principal Investigator, University of Alabama at Birmingham |
ClinicalTrials.gov Identifier: | NCT01610765 |
Other Study ID Numbers: |
DMID 11-0068 |
First Posted: | June 4, 2012 Key Record Dates |
Last Update Posted: | June 7, 2016 |
Last Verified: | June 2016 |
HSV pharmacokinetics herpes neonates |
Herpes Simplex Central Nervous System Diseases Virus Diseases Herpesviridae Infections DNA Virus Infections Skin Diseases, Viral |
Skin Diseases, Infectious Skin Diseases Nervous System Diseases Antiviral Agents Anti-Infective Agents |