HIV InfectionsPhase 1NCT00000721
An Escalating Dose Tolerance Trial of BG8962 (rCD4) in Patients Who Are HIV Antibody Positive
A Phase 1 study testing CD4 Antigens in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.
Trial summary
To determine the maximal safe daily dose of BG8962 (rCD4) which can be administered by continuous subcutaneous infusion (CSCI) over 24 hours; to determine the pharmacokinetics of BG8962 when it is administered by intramuscular and subcutaneous routes; and to look for dose related antiviral activity determined by… Read more about this study
- Who is it for?
- Ages 13 years and older
- Conditions the study is for
- HIV Infections
- What is being tested?
- CD4 Antigens
- How many people
- 85 participants
- Where
- 1 siteUnited States
- Study dates
- Start not givento Mar 1991
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 13 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Concurrent Medication:
- Allowed:
- Nystatin or clotrimazole for suppression of oral thrush.
- Aerosolized pentamidine for Pneumocystis prophylaxis in Group A patients.
- Trimethoprim / sulfamethoxazole for Pneumocystis prophylaxis in patients who are hematologically stable on trimethoprim / sulfamethoxazole.
- Patients must have:
- Group A: AIDS and symptoms defined in disease status.
- Group B: AIDS related complex (ARC) and symptoms defined in disease status.
Who cannot join
- Co-existing Condition:
- Patients with the following disease or conditions are excluded:
- Malignancies other than Kaposi's sarcoma.
- AIDS dementia.
- Opportunistic infections requiring ongoing therapy except oral thrush suppression with nystatin or clotrimazole or Pneumocystis prophylaxis in Group A patients.
- Significant organ system dysfunction including:
Show all 28Show fewer
- Granulocytopenia with a granulocyte count < 1000 cells/mm3.
- Thrombocytopenia - < 75000 platelets/mm3.
- Anemia with a hemoglobin < 9.5 g/dl.
- Renal dysfunction - creatinine > 2 mg/dl.
- Hepatic dysfunction with enzymes or bilirubin > 3 x upper limit of normal.
- Patients with the following are excluded:
- Preexisting antibodies to rCD4.
- Malignancies other than Kaposi's sarcoma.
- AIDS-dementia complex.
- Opportunistic infections requiring ongoing therapy.
- Significant organ system dysfunction.
- Inability to sign voluntarily the consent form.
- Prior Medication:
- Excluded:
- Recombinant soluble CD4 protein (rCD4).
- Excluded within 30 days of study entry:
- Immunomodulatory therapy or agent with anti-HIV activity.
- Chemotherapy.
- Prior Treatment:
- Excluded within 30 days of study entry:
- Radiotherapy.
- Active illicit drug use or alcohol abuse at time of entry.
Trial locations and contacts
1 site in 1 country.
About this study
To determine the maximal safe daily dose of BG8962 (rCD4) which can be administered by continuous subcutaneous infusion (CSCI) over 24 hours; to determine the pharmacokinetics of BG8962 when it is administered by intramuscular and subcutaneous routes; and to look for dose related antiviral activity determined by quantitation of infectious HIV peripheral blood leukocytes (PBLs) and plasma, and by monitoring the blood levels of viral p24 antigen (when present), CD4+ T-cells, and Beta-2- microglobulin. Recombinant soluble CD4 protein (rCD4) is a drug that has been produced by genetic engineering techniques. In laboratory studies, rCD4 binds to HIV and reduces its ability to enter the cell, thus inhibiting its reproduction. Before rCD4 can be tested for therapeutic effectiveness in HIV-infected patients, it is necessary to determine the maximum dose that can be tolerated by humans. AMENDED: To date, Biogen's original sequence recombinant soluble CD4 and Biogen's natural sequence recombinant soluble CD4 have both been referred to as recombinant soluble CD4 (rsCD4). In order to distinguish between these two products, a change in nomenclature has been made. In this protocol, whenever the original sequence CD4 molecule is referred to, it is called recombinant soluble T4 (rsT4). Whenever the natural sequence molecule (currently under study in this protocol) is referred to, it is called BG8962 or rCD4. Whenever the drug is discussed generically, it is referred to as rsCD4.
Read the detailed description
Recombinant soluble CD4 protein (rCD4) is a drug that has been produced by genetic engineering techniques. In laboratory studies, rCD4 binds to HIV and reduces its ability to enter the cell, thus inhibiting its reproduction. Before rCD4 can be tested for therapeutic effectiveness in HIV-infected patients, it is necessary to determine the maximum dose that can be tolerated by humans. AMENDED: To date, Biogen's original sequence recombinant soluble CD4 and Biogen's natural sequence recombinant soluble CD4 have both been referred to as recombinant soluble CD4 (rsCD4). In order to distinguish between these two products, a change in nomenclature has been made. In this protocol, whenever the original sequence CD4 molecule is referred to, it is called recombinant soluble T4 (rsT4). Whenever the natural sequence molecule (currently under study in this protocol) is referred to, it is called BG8962 or rCD4. Whenever the drug is discussed generically, it is referred to as rsCD4.
The initial dose level is the highest dose previously established with other patients in this trial to be safe when administered intramuscularly (IM). Dose escalation is by semilogarithmic steps. A shift from IM injection to continuous subcutaneous infusion (CSCI) is necessitated by the volume of drug which is administered as part of the escalation dose. Three groups of eight patients each are treated as follows. The first group of 8 patients receives BG8962 daily and consists of two cohorts of four patients each. One cohort receives BG8962 as an IM injection. The second cohort receives BG8962 as a continuous 24 hour infusion. All patients in this group are treated for 12 weeks. The second dosing group of 8 patients receive daily BG8962 by CSCI for 12 weeks. The third group of 8 patients receive BG8962 by CSCI for 6 weeks. Every two weeks during the study the following tests and evaluations are done: Blood chemistry, hematology, urinalysis with microscopic exam, and T-cells and T-cell subsets.
- Conditions
- HIV Infections
- Being tested
- CD4 Antigens
- Keywords
- Recombinant Proteins, Infusions, Intravenous, Injections, Intramuscular, Injections, Intravenous, Injections, Subcutaneous, Dose-Response Relationship, Drug, Drug Evaluation, Acquired Immunodeficiency Syndrome, Antigens, CD4, AIDS-Related Complex
- Medical subject headings
- HIV Infections, Acquired Immunodeficiency Syndrome, AIDS-Related Complex
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CD4 AntigensDrug
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Aug 2001 (estimated)
- Study completionMar 1991
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HIV InfectionsStudies of the same condition, open and under way.
- More trials run by National Institute of Allergy and Infectious Diseases (NIAID)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Masking
- None (open label)
- Enrolment
- 85 participants
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Collaborators
- Biogen
- Responsible party
- Sponsor
- Investigators
- Schooley RT, Study chairMerigan TC, Study chair
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00000721
- Sponsor's protocol ID
- ACTG 066
- Other IDs
- 11040, 066 Extension
- Status last verified
- Oct 2021
- First submitted
- 2 Nov 1999
- Last updated
- 28 Oct 2021
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 28 Oct 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Escalating Dose Tolerance Trial of BG8962 (rCD4) in Patients Who Are HIV Antibody Positive
- ClinicalTrials.gov ID
- NCT00000721
- Acronym / sponsor ID
- ACTG 066
- Conditions
- HIV Infections
- Keywords
- Recombinant Proteins, Infusions, Intravenous, Injections, Intramuscular, Injections, Intravenous, Injections, Subcutaneous, Dose-Response Relationship, Drug, Drug Evaluation, Acquired Immunodeficiency Syndrome
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 85 participants
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)US National Institutes of Health
- Collaborators
- Biogen
- Study completion
- Mar 1991 (actual)
- First posted
- 31 Aug 2001 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To determine the maximal safe daily dose of BG8962 (rCD4) which can be administered by continuous subcutaneous infusion (CSCI) over 24 hours; to determine the pharmacokinetics of BG8962 when it is administered by intramuscular and subcutaneous routes; and to look for dose related antiviral activity determined by quantitation of infectious HIV peripheral blood leukocytes (PBLs) and plasma, and by monitoring the blood levels of viral p24 antigen (when present), CD4+ T-cells, and Beta-2- microglobulin. Recombinant soluble CD4 protein (rCD4) is a drug that has been produced by genetic engineering techniques. In laboratory studies, rCD4 binds to HIV and reduces its ability to enter the cell, thus inhibiting its reproduction. Before rCD4 can be tested for therapeutic effectiveness in HIV-infected patients, it is necessary to determine the maximum dose that can be tolerated by humans. AMENDED: To date, Biogen's original sequence recombinant soluble CD4 and Biogen's natural sequence recombinant soluble CD4 have both been referred to as recombinant soluble CD4 (rsCD4). In order to distinguish between these two products, a change in nomenclature has been made. In this protocol, whenever the original sequence CD4 molecule is referred to, it is called recombinant soluble T4 (rsT4). Whenever the natural sequence molecule (currently under study in this protocol) is referred to, it is called BG8962 or rCD4. Whenever the drug is discussed generically, it is referred to as rsCD4.
Detailed description
Recombinant soluble CD4 protein (rCD4) is a drug that has been produced by genetic engineering techniques. In laboratory studies, rCD4 binds to HIV and reduces its ability to enter the cell, thus inhibiting its reproduction. Before rCD4 can be tested for therapeutic effectiveness in HIV-infected patients, it is necessary to determine the maximum dose that can be tolerated by humans. AMENDED: To date, Biogen's original sequence recombinant soluble CD4 and Biogen's natural sequence recombinant soluble CD4 have both been referred to as recombinant soluble CD4 (rsCD4). In order to distinguish between these two products, a change in nomenclature has been made. In this protocol, whenever the original sequence CD4 molecule is referred to, it is called recombinant soluble T4 (rsT4). Whenever the natural sequence molecule (currently under study in this protocol) is referred to, it is called BG8962 or rCD4. Whenever the drug is discussed generically, it is referred to as rsCD4.
The initial dose level is the highest dose previously established with other patients in this trial to be safe when administered intramuscularly (IM). Dose escalation is by semilogarithmic steps. A shift from IM injection to continuous subcutaneous infusion (CSCI) is necessitated by the volume of drug which is administered as part of the escalation dose. Three groups of eight patients each are treated as follows. The first group of 8 patients receives BG8962 daily and consists of two cohorts of four patients each. One cohort receives BG8962 as an IM injection. The second cohort receives BG8962 as a continuous 24 hour infusion. All patients in this group are treated for 12 weeks. The second dosing group of 8 patients receive daily BG8962 by CSCI for 12 weeks. The third group of 8 patients receive BG8962 by CSCI for 6 weeks. Every two weeks during the study the following tests and evaluations are done: Blood chemistry, hematology, urinalysis with microscopic exam, and T-cells and T-cell subsets.
Study design
- Primary purpose
- Treatment
- Masking
- None (open label)
Who may qualify
- Ages
- 13 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (8 listed)
- Nystatin or clotrimazole for suppression of oral thrush.
- Aerosolized pentamidine for Pneumocystis prophylaxis in Group A patients.
- Trimethoprim / sulfamethoxazole for Pneumocystis prophylaxis in patients who are hematologically stable on trimethoprim / sulfamethoxazole.
- Group A: AIDS and symptoms defined in disease status.
- Group B: AIDS related complex (ARC) and symptoms defined in disease status.
Key exclusion criteria (28 listed)
- Malignancies other than Kaposi's sarcoma.
- AIDS dementia.
- Opportunistic infections requiring ongoing therapy except oral thrush suppression with nystatin or clotrimazole or Pneumocystis prophylaxis in Group A patients.
- Significant organ system dysfunction including:
- Granulocytopenia with a granulocyte count < 1000 cells/mm3.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CD4 Antigens | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Oct 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Schooley RT study chair
Merigan TC study chair
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing CD4 Antigens in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 28 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2021.