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A clinical trial to assess the safety and tolerability of THV01, a therapeutic treatment against HIV composed of two vaccines, in HIV-infected patients treated by antiretroviral treatment. Three doses will be assessed and a control group of patients who will receive a placebo (non-active product) is included. The immune response generated by the THV01 treatment will also be assessed.

A multi-center, randomized, double blind, placebo-controlled Phase I/II trial to compare the safety, tolerability and immunogenicity of the therapeutic THV01 vaccination at 5x10E6 TU, 5x10E7 TU or 5x10E8 TU doses to placebo in HIV-1 clade B infected patients under highly active antiretroviral therapy

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2011-006260-52-BE
Enrollment
38
Registered
2012-03-29
Start date
2012-10-12
Completion date
Unknown
Last updated
2019-06-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Human Immunodeficiency Virus type 1 infection MedDRA version: 18.0 Level: LLT Classification code 10068341 Term: HIV-1 infection System Organ Class: 100000004862

Interventions

Product Name: THV01-1 Pharmaceutical Form: Suspension for injection INN or Proposed INN: live recombinant lentiviral vectored vaccine derived from the HIV-1 NL4-3 strai

Sponsors

THERAVECTYS
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patient infected with clade B HIV-1; 2. Confirmation of a Gag clade B genotyping performed at screening; 3. Patient must be treated by a triple agents therapy for more than 12 months at baseline: two nucleosidic reverse transcriptase inhibitors plus one boosted protease inhibitor, or two nucleosidic reverse transcriptase inhibitors plus one non nucleosidic reverse transcriptase inhibitor; 4. Patient must be treated for more than 60 days at baseline by two (2) nucleosidic reverse transcriptase inhibitors plus a ritonavir boosted protease inhibitor treatment among darunavir+ritonavir or lopinavir+ritonavir; 5. Patient’s HIV plasma viral load must have remained = 150,000 copies mL-1 at any monitoring time (apart measurement during primo-infection if recorded); 6. Patient with HIV plasma viral load persistently = 50 copies mL-1 during the 12 months prior to screening; 7. Patient’s CD4+ T cells count = 300 cells per mm3 at any time since diagnosis; 8. Patient’s CD4+ T cells count 9.0 g dL-1; ? Absolute neutrophil count = 750 mm-3; ? Platelets = 100,000 mm-3; ? Total serum creatinine = 1.3 x ULN (upper limit of normal); ? Creatinine clearance > 50 mL min-1 by the Cockcroft-Gault equation within 60 days of entry ; ? Prothrombin time (PT) =65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. HIV-2 infection; 2. Patient treated by HIV entry or fusion inhibitors; 3. Patient treated by HIV integrase inhibitors as no safety data, in case of treatment interruption are available for such patients and as these molecules are usually prescribed for patients having medical resistance records; 4. Patient displaying any HIV protease inhibitor resistance mutation as listed in the current version of the HIV drug resistance database (Stanford University); 5. Patient having undergone virological failure as defined by a viral load = 500 copies mL-1 confirmed by a second measure, since initiation of treatment; 6. More than 2 blips with viral load comprised between 50 and 500 copies mL-1 during the 12 months prior inclusion; 7. History of an AIDS-defining clinical illness; 8. Concomitant AIDS-related opportunistic disease; 9. History of allergic disease, anaphylaxis or reactions likely to be triggered or exacerbated by any component of the vaccine such as lactose; 10. Acute or chronic infectious disease other than AIDS (include but not limited to viral hepatitis such as hepatitis B and hepatitis C, active tuberculosis, active syphilis, HTLV-1, HTLV-2); 11. Acute, chronic or history of clinically relevant pulmonary, cardiovascular, gastrointestinal, hepatic, pancreatic or renal functional abnormality, encephalopathy, neuropathy or unstable CNS pathology, angina or cardiac arrhythmias, or any other clinically significant medical problems as determined by physical examination and/or laboratory screening tests and/or medical history; 12. Severe hepatic impairment; 13. Serious dyslipidaemia; 14. Severe disorders of blood coagulation; 15. Known or suspected allergy to egg phospholipids, soy proteins and/or peanut; 16. Acute, chronic or history of immunodeficiency or autoimmune disease other than HIV infection; 17. Unstable asthma (defined as sudden acute attacks occurring in less than three hours without an obvious trigger, hospitalisation for asthma in the last two years); food or wine induced asthma; 18. History of malignancy unless there has been surgical excision that is considered to have achieved cure; 19. Active malignancy that may require chemotherapy or radiation therapy; 20. Seizure disorder or any history of prior seizure; 21. Subjects planning to receive a prophylactic or therapeutic vaccination during the study except Influenza immunization; 22. Subjects who received any vaccination for the 3 months prior the first injection; 23. Subjects having an infective exacerbation as defined as a requirement of inhaled, oral, or intravenous antibiotics at W-2 or later; 24. Serious illness requiring systemic treatment and/or hospitalization within 7 days prior to baseline; 25. Pregnant or breast-feeding women; 26. Any contraindication of intramuscular injection; 27. Active drug or alcohol abuse or dependence; 28. Any condition, which in the opinion of the investigator, could compromise the subject's safety or adherence to the study protocol.

Design outcomes

Primary

MeasureTime frame
Primary end point(s): Occurrence of at least one grade 3 or higher adverse event including signs/symptoms, lab toxicities and/or clinical events possibly, probably or definitely related to study treatment.;Timepoint(s) of evaluation of this end point: from W0 to W24; Secondary Objective: One secondary objective is to compare the safety and tolerability of the THV01 therapeutic HIV-1 vaccination by treatment group and versus placebo: - From W-7 or W-2 (baseline) to W0; - From W24 to W36 or early termination; - From W36 to W88 or early termination. Another secondary objective of the study is to compare the cellular immune responses by treatment group and versus placebo: - From W-7 or W-2 (baseline) to W0; - From W0 to W24; - From W24 to W36 or early termination; - From W36 to W88 or early termination. One of the exploratory objectives is a long-term follow-up of the study with monitoring visits three times per year, during five years post-prime vaccination, to monitor: - Safety - Cellular immune response - Viral reservoirs - Presence of IMP in blood - Sequencing of circulating virus. ;Main Objective: The primary objective is to compare the safety and tolerability of the THV01 therapeutic HIV-1 vaccination by treatment group and versus placebo from W0 to W24.

Secondary

MeasureTime frame
Secondary end point(s): #1 Occurrence of at least one grade 3 or higher adverse event including signs/symptoms, lab toxicities and/or clinical events possibly, probably or definitely related to study treatment. #2 Monitoring the cellular immune response by cytokines and integrins quantification (IL-2; TNF-a; IFN-g; MIP-1b; CD40L and CD103); by monitoring the polyclonal activation (CD38; HLA-DR; CD45RA; CDR7 staining) and by ELISPOTs in the treatment group versus placebo. # Exploratory objectives - Long term safety; - Long term cellular immune response assessment; (CD4+/CD8+ ratio; cytokines quantification; monitoring of the polyclonal activation); - Long term quantification of the viral DNA in HIV reservoirs; - Long term quantification of the IMP presence in patients' blood by PCR; - Sequencing of the circulating HIV sequence in patients'blood by PCR. ; Timepoint(s) of evaluation of this end point: Timing of endpoint #1: - from baseline to W0; - from W24 to W36; - from W36 to W88 or early termination. Timing of endpoint #2: - from baseline to W0: at W-2 or W-7 (depending on baseline date); - from W0 to W24: at W0; W4; W9; W12 and W24; - from W24 to W36 or early termination: at W28 and W36; - from W36 to W88 or early termination: at W48; W64 and W88 or early termination. Timing of exploratory objectives: 3 times per year during 5 years post-primo administration.

Countries

Belgium, France

Contacts

Public ContactEmmanuelle SABBAH-PETROVER

THERAVECTYS

esabbah@theravectys.com0033143901917

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026