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Search / Trial NCT03073967

Trial on Efficacy and Safety of Pritelivir Tablets for Treatment of Acyclovir-resistant Mucocutaneous HSV (Herpes Simplex Virus) Infections in Immunocompromised Subjects

Launched by AICURIS ANTI-INFECTIVE CURES AG · Mar 3, 2017

Trial Information

Current as of July 23, 2025

Recruiting

Keywords

ClinConnect Summary

This clinical trial is studying a new medication called pritelivir to see how effective and safe it is for treating herpes simplex virus (HSV) infections in people with weakened immune systems. These individuals may not respond to standard treatments like acyclovir, and the trial aims to offer them a better option. Participants will take pritelivir once daily after an initial higher dose to quickly reach the right level in their blood. There are also other treatment options allowed in the study, depending on what the doctor thinks is best.

To join this trial, participants must be at least 16 years old and have a specific type of HSV infection that is resistant to acyclovir, which means previous treatments haven't worked. They should also have visible lesions that can be monitored for healing. Women who can become pregnant will need to use effective birth control and have negative pregnancy tests before starting the trial. Participants can expect regular check-ins to monitor their health and the effectiveness of the treatment. This trial is currently recruiting patients, and it's important for those interested to discuss with their doctor to see if they meet the eligibility criteria.

Gender

ALL

Eligibility criteria

  • Part C inclusion criteria
  • 1. Immunocompromised men and women of any ethnic group aged ≥16 years.
  • In Canada, Germany, Belgium:
  • Immunocompromised (due to conditions including but not limited to HIV infection, hematopoietic cell or solid organ transplantation, and chronic use of immunosuppressive treatment) men and women of any ethnic group aged \>18 years.
  • 2. ACV-R mucocutaneous HSV infection based on clinical failure or positive genotypic/phenotypic ACV resistance testing for current lesion. Clinical failure is defined as no improvement after oral or iv doses for at least 7 days at doses equivalent to or greater than the local agency approved high oral doses of acyclovir, valacyclovir or famciclovir.
  • 3. Lesions accessible for visual inspection to allow assessment of lesion healing including visualization by endoscopy.
  • 4. Willingness to use highly effective birth control.
  • 5. Subject, and/or their legally authorized representative, (proxy consent is not permitted in Germany), must be willing and able to understand the Informed Consent Form.
  • 6. Negative serum β-HCG (beta-human chorionic gonadotropin) test for women of child-bearing potential at Screening and a negative urine pregnancy test at Day 1.
  • 7. Written informed consent. For subjects, who are unable to provide informed consent for whatever reason, written consent must be obtained from the legal representative, (proxy consent is not permitted in Germany).
  • Part D and F inclusion criteria
  • All inclusion criteria as for Part C, except for inclusion criterion 2, which is replaced by:
  • 2. ACV-R and foscarnet-R mucocutaneous HSV infection based on clinical failure or positive genotypic/phenotypic resistance testing for current lesion or documented intolerance to iv foscarnet requiring cessation of foscarnet treatment or precluding foscarnet treatment.
  • Subjects will be able to enter Part F only after closure of enrollment in Part D.
  • Part E inclusion (Part E is not being conducted in Germany)
  • All inclusion criteria as for Part C, except for inclusion criterion 2, which is replaced by:
  • 2. Recurrent mucocutaneous HSV infection considered ACV-S.
  • Part C exclusion criteria
  • 1. Known resistance/intolerance to pritelivir or any of the excipients.
  • 2. Previous treatment in PRIOH-1.
  • 3. Baseline safety laboratory abnormalities.
  • 4. History or current evidence of gastrointestinal malabsorption which, in the opinion of the Investigator, may affect the extent of absorption of pritelivir.
  • 5. Hemodialysis for any indication and ESRD (eGFR \<15 mL/min; stage 5 CKD)
  • 6. History or current evidence of significant cardiovascular, pulmonary, hepatic, renal, gastrointestinal, hematological, endocrinological, metabolic, neurological, psychiatric, or other relevant diseases.
  • 7. Abnormalities in hematological, clinical chemical or any other laboratory variables.
  • 8. Not able to communicate meaningfully with the Investigator and site staff.
  • 9. Any other condition which in the opinion of the Investigator would interfere with successful completion of this clinical trial.
  • 10. Any other important local condition.
  • 11. Pregnant and/or breastfeeding women.
  • 12. Having received an investigational drug in an investigational drug trial unter certain conditions.
  • Part D (complete) exclusion criteria
  • All exclusion criteria as for Part C, except criterion 12, which is replaced by:
  • 13. Having received an investigational drug in an investigational trial within 7 half-lives after the last administration of this drug before initiating trial medication, except for subjects entering Part D, who have previously received foscarnet treatment in Part C of this trial.
  • Participation in a clinical trial without receiving other investigational drugs (eg, follow-up phase of a trial, observational study) is permitted.
  • Part E exclusion criteria (Part E is not being conducted in Germany)
  • All exclusion criteria in Part E are identical to those in Part C with the addition of:
  • 13. Having used acyclovir, valacyclovir, or famciclovir within 3 days prior to starting pritelivir.
  • Part F exclusion criteria All exclusion criteria for Part D plus 13. Part D open for enrollment

About Aicuris Anti Infective Cures Ag

Aicuris Anti-Infective Cures AG is a biopharmaceutical company dedicated to advancing innovative therapies for the treatment of infectious diseases. With a strong focus on addressing global health challenges posed by antibiotic resistance and viral infections, Aicuris is committed to developing novel compounds that enhance patient outcomes and improve public health. The company's robust pipeline is supported by cutting-edge research and development, leveraging insights from microbiology and pharmacology. Aicuris aims to deliver effective solutions that not only combat current infections but also pave the way for future advancements in anti-infective treatments.

Locations

Minneapolis, Minnesota, United States

Tampa, Florida, United States

Boston, Massachusetts, United States

Birmingham, Alabama, United States

Boston, Massachusetts, United States

Seattle, Washington, United States

Los Angeles, California, United States

Cincinnati, Ohio, United States

Duarte, California, United States

Detroit, Michigan, United States

Birmingham, Alabama, United States

Baltimore, Maryland, United States

Houston, Texas, United States

Houston, Texas, United States

Nantes, , France

Pittsburgh, Pennsylvania, United States

Essen, , Germany

Mobile, Alabama, United States

Würzburg, , Germany

Pavia, , Italy

Newcastle Upon Tyne, , United Kingdom

Brugge, , Belgium

Centennial, Colorado, United States

Basel, , Switzerland

Köln, , Germany

Zuerich, , Switzerland

London, , United Kingdom

Roeselare, , Belgium

New Brunswick, New Jersey, United States

Edinburgh, , United Kingdom

Atlanta, Georgia, United States

Deland, Florida, United States

Omaha, Nebraska, United States

Hershey, Pennsylvania, United States

Athens, , Greece

Miami, Florida, United States

Paris, , France

Winston Salem, North Carolina, United States

Tel Hashomer, , Israel

Tucson, Arizona, United States

Sacramento, California, United States

New Haven, Connecticut, United States

Fort Pierce, Florida, United States

Miami, Florida, United States

Chicago, Illinois, United States

Baton Rouge, Louisiana, United States

New York, New York, United States

Córdoba, , Argentina

Córdoba, , Argentina

La Plata, , Argentina

Westmead, , Australia

Brussels, , Belgium

Mannheim, , Germany

Muenchen, , Germany

Distrito Federal, , Mexico

Monterrey, , Mexico

Saltillo, , Mexico

Veracruz, , Mexico

Basel, , Switzerland

Genève, , Switzerland

London, , United Kingdom

Durango, , Mexico

Tbilisi, , Georgia

Beijing, , China

Milano, , Italy

Guadalajara, , Mexico

Parkville, , Australia

Limoges, , France

Paris, , France

Paris, , France

Heraklion, , Greece

Calabria, , Italy

Tbilisi, , Georgia

Tbilisi, , Georgia

Gainesville, Florida, United States

Edmonton, Alberta, Canada

New Orleans, Louisiana, United States

Chihuahua, , Mexico

Durham, North Carolina, United States

Decatur, Georgia, United States

Burr Ridge, Illinois, United States

Brooklyn, New York, United States

Hunstville, Alabama, United States

Tuscon, Arizona, United States

Lee's Summit, Missouri, United States

Winston Salem, North Carolina, United States

Kyiv, , Ukraine

Patients applied

AG

1 patients applied

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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