Dose-dependent efficacy of intravenous brincidofovir across adenovirus species in immunocompromised patients lucini2026dose

Phase 2a ATHENA trial in immunocompromised patients with invasive human adenovirus (HAdV) infection treated with intravenous brincidofovir (BCV) in four dosing cohorts. The study monitored adenovirus in blood (serum/plasma) and stool using species-specific qPCR (screening and typing) and next-generation sequencing (NGS) for genotype identification, assessing virological responses and documenting species/genotype diversity including mixed infections. Patients in cohort 1 treated with intravenous BCV at a dose of 0.2 mg/kg twice weekly (BIW). Patients in cohorts 2 treated with 0.3 mg/kg BIW. Patients in cohort 3 treated with 0.4 mg/kg BIW. The only patient where a serum sample was available treated with 0.4 mg/kg once weekly.

Analytes

serum_a

Quantitative adenovirus DNA load in serum measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per mL of serum; hexon gene targeted (primer/probe sets reported in supplement).

exponential for serum_a

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: serum
Units: gc/mL
Gene target: hexon
Participants: 5
Negative samples: 7
Positive samples (not quantifiable): 0
Quantifiable samples: 15
Limit of quantification: unknown
Limit of detection: unknown

serum_b

Quantitative adenovirus DNA load in serum measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per mL of serum; hexon gene targeted (primer/probe sets reported in supplement).

exponential for serum_b

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: serum
Units: gc/mL
Gene target: hexon
Participants: 6
Negative samples: 11
Positive samples (not quantifiable): 0
Quantifiable samples: 17
Limit of quantification: unknown
Limit of detection: unknown

serum_c

Quantitative adenovirus DNA load in serum measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per mL of serum; hexon gene targeted (primer/probe sets reported in supplement).

exponential for serum_c

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: serum
Units: gc/mL
Gene target: hexon
Participants: 11
Negative samples: 1
Positive samples (not quantifiable): 0
Quantifiable samples: 42
Limit of quantification: unknown
Limit of detection: unknown

serum_e

Quantitative adenovirus DNA load in serum measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per mL of serum; hexon gene targeted (primer/probe sets reported in supplement).

observations for serum_e

Measurements only — no shedding model is fitted to this analyte, usually because it is sampled once per participant, leaving no trajectory to fit, or because nothing was ever detected. Open triangles are non-detects, drawn at the assay's censoring limit. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: serum
Units: gc/mL
Gene target: hexon
Participants: 3
Negative samples: 5
Positive samples (not quantifiable): 0
Quantifiable samples: 9
Limit of quantification: unknown
Limit of detection: unknown

serum_f

Quantitative adenovirus DNA load in serum measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per mL of serum; hexon gene targeted (primer/probe sets reported in supplement).

exponential for serum_f

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: serum
Units: gc/mL
Gene target: hexon
Participants: 4
Negative samples: 9
Positive samples (not quantifiable): 0
Quantifiable samples: 10
Limit of quantification: unknown
Limit of detection: unknown

stool_a

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

exponential for stool_a

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 7
Negative samples: 3
Positive samples (not quantifiable): 0
Quantifiable samples: 19
Limit of quantification: unknown
Limit of detection: unknown

stool_b

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

exponential for stool_b

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 6
Negative samples: 7
Positive samples (not quantifiable): 0
Quantifiable samples: 13
Limit of quantification: unknown
Limit of detection: unknown

stool_c

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

gamma for stool_c

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 14
Negative samples: 0
Positive samples (not quantifiable): 0
Quantifiable samples: 53
Limit of quantification: unknown
Limit of detection: unknown

stool_d

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

observations for stool_d

Measurements only — no shedding model is fitted to this analyte, usually because it is sampled once per participant, leaving no trajectory to fit, or because nothing was ever detected. Open triangles are non-detects, drawn at the assay's censoring limit. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 1
Negative samples: 0
Positive samples (not quantifiable): 0
Quantifiable samples: 2
Limit of quantification: unknown
Limit of detection: unknown

stool_e

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

observations for stool_e

Measurements only — no shedding model is fitted to this analyte, usually because it is sampled once per participant, leaving no trajectory to fit, or because nothing was ever detected. Open triangles are non-detects, drawn at the assay's censoring limit. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 4
Negative samples: 8
Positive samples (not quantifiable): 0
Quantifiable samples: 8
Limit of quantification: unknown
Limit of detection: unknown

stool_f

Quantitative adenovirus DNA load in stool measured by a two-step species-specific real-time qPCR approach (screening primers/probes for A/F/C and B/D/E followed by species-specific assays A–F), with viral loads calculated as copies per gram of stool; hexon gene targeted (primer/probe sets reported in supplement).

exponential for stool_f

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: adenovirus
Specimen: stool
Units: gc/wet gram
Gene target: hexon
Participants: 8
Negative samples: 21
Positive samples (not quantifiable): 0
Quantifiable samples: 19
Limit of quantification: unknown
Limit of detection: unknown