National Institute of Allergy and Infectious Diseases (NIAID)

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, National Institute of Allergy and Infectious Diseases (NIAID) sits in the top decile of US sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count).

2,006 total trials 155 currently recruiting 1642 completed early-phase tilt top decile by trial count

National Institute of Allergy and Infectious Diseases (NIAID): 2,006 sponsored US clinical trials, 155 recruiting.

National Institute of Allergy and Infectious Diseases (NIAID) sponsors 2,006 registered US clinical trials on ClinicalTrials.gov, 155 of them currently recruiting, and 1,642 completed. 177 of these trials are in Phase 3-4 (later-stage) and 1,291 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is HIV Infections, with 195 trials.

Top-decile sponsor footprint

National Institute of Allergy and Infectious Diseases (NIAID) ranks in the top decile of sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 68/100

1,642 of 1,802 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (91.1%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

2,006 total, page 32 of 41

COMPLETED Phase 2

A Study of Nitazoxanide in Patients With AIDS and Diarrhea Caused by Cryptosporidium

NCT00001081

COMPLETED Phase 2

Virologic and Immunologic Activity of Continued Lamivudine (3TC) vs Delavirdine (DLV) in Combination With Indinavir (IDV) and Zidovudine (ZDV) or Stavudine (d4T) in 3TC-Experienced Subjects

NCT00000882

COMPLETED Phase 2

A Study to See If Taking One or Two Extra Drugs Can Lower HIV Levels in Patients Who Have Failed Their Anti-HIV Drug Treatment

NCT00006152

COMPLETED Phase 1

A Phase I Clinical Trial to Evaluate the Safety and Immunogenicity of 200 Mcg of gp120 (CHO) BIOCINE in MF59 Emulsion Versus the Emulsion Control: Three Injections at 0, 1, and 6 Months

NCT00000749

COMPLETED NA

A Study of Azidothymidine Plus Methadone in Patients With AIDS and AIDS Related Complex (ARC)

NCT00001008

COMPLETED NA

Evaluation of the Interaction Between Acetaminophen and Zidovudine

NCT00000731

COMPLETED NA

A Study to Evaluate Various Combinations of Anti-HIV Medications to Treat Early HIV Infection

NCT00000919

COMPLETED Phase 1

A Study to Evaluate the Safety and Tolerance of Combination Anti-HIV Drug Therapy (Indinavir, Lamivudine, and Zidovudine) in HIV-Positive Pregnant Women and Their Infants

NCT00000944

COMPLETED Phase 1

A Study to Evaluate the Effects of Interleukin-12 (rhIL-12) in HIV-Positive Patients With CD4 Cell Counts Less Than 50 Cells/mm3 or 300-500 Cells/mm3

NCT00000857

COMPLETED

The Effects of Illnesses on HIV Levels in the Body

NCT00000900

COMPLETED Phase 2

A Phase II Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV vCP205 With or Without HIV-1 SF-2 RGP120 in HIV-1 Uninfected Adult Volunteers

NCT00000871

COMPLETED NA

A Pilot Pharmacokinetic Phase I Evaluation of BI-RG-587 in HIV-Infected Children

NCT00000634

COMPLETED Phase 3

A Study of Nonoxynol-9 (N-9) and HIV Infection

NCT00000926

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV (vCP205) and HIV-1 SF-2 rgp120 in HIV-1 Uninfected Volunteers to Evaluate Accelerated Vaccine Schedules

NCT00001076

COMPLETED Phase 1

A Phase I, Multicenter, Randomized, Double-Blind, Placebo-Controlled HIV-1 Vaccine Trial to Evaluate the Safety and Immunogenicity of MN Recombinant Soluble gp120/HIV-1 (rsgp120/HIV-1) (Genentech) in Combination With QS21 Adjuvant and/or Alum in Healthy Adults

NCT00001052

COMPLETED

Pilot Study Freeze and Transport Immune Cells

NCT00138268

COMPLETED Phase 1

A Phase I, Multicenter, Randomized, Double-Blind, Placebo-Controlled HIV-1 Vaccine Trial to Evaluate the Safety and Immunogenicity of Low Dose MN rsgp120/HIV-1 (Genentech) in Combination With QS21 Adjuvant or Alum in Healthy Adults

NCT00000853

COMPLETED Phase 1

A Phase I, Randomized, Double-Blind, Placebo-Controlled, Clinical Trial to Compare the Safety and Immunogenicity of Recombinant Envelope Protein rgp120/HIV-1SF2 (BIOCINE) Combined With Seven Adjuvants in Healthy HIV-1 Uninfected Individuals

NCT00001042

COMPLETED Phase 1

A Study of AZT Plus Human Interferon Alpha in the Treatment of AIDS-Related Kaposi's Sarcoma

NCT00001113

COMPLETED Phase 1

Safety of the Candidate Vaccine C4-V3 Alone or With Interleukin-12 (IL-12) in HIV-Infected Patients Receiving Effective Anti-HIV Drug Therapy

NCT00005779

COMPLETED NA

Treatment of Acyclovir-Resistant Mucocutaneous Herpes Simplex Disease in Patients With AIDS: Open Label Pilot Study of Topical Trifluridine

NCT00000635

COMPLETED NA

A Study to Test If Giving Remune (an HIV Vaccine) Can Improve the Immune Systems of HIV-Positive Patients Who Are Also Participating in ACTG 328

NCT00000943

COMPLETED Phase 2

Comparison of Stavudine Used Alone or in Combination With Didanosine in HIV-Infected Children

NCT00000851

COMPLETED Phase 1

A Pharmacologically Guided Phase I/II Study of Daily Orally Administered Synthetic Hypericin in HIV-Infected Subjects

NCT00000792

COMPLETED Phase 1

A Phase I Study of Combination Therapy With Didanosine (ddI) and Ribavirin in HIV-Infected Children.

NCT00000833

COMPLETED NA

An Open Trial Combining Zidovudine, Interferon-alfa, and Recombinant CD4-IgG With Transplantation of Syngeneic Bone Marrow and Peripheral Blood Lymphocytes From Healthy gp160-Immunized Donors in the Treatment of Patients With HIV Infection

NCT00000647

COMPLETED Phase 2

A Study of Doxorubicin in the Treatment of AIDS-Related Kaposi's Sarcoma

NCT00000996

COMPLETED NA

The Effects of Anti-HIV Drugs in HIV-Infected Patients Who Do Not Have AIDS

NCT00001024

COMPLETED Phase 1

A Phase I Clinical Trial To Evaluate the Toxicity, Antiviral and Immunomodulatory Effects of a Range of Doses of Ampligen in HIV-Infected Subjects

NCT00000713

COMPLETED NA

Two-Stage Tuberculin (PPD) Skin Testing in Individuals With Human Immunodeficiency Virus (HIV) Infection

NCT00000955

COMPLETED Phase 1

Interactions Between HIV Protease Inhibitors and Calcium Channel Blockers

NCT00039975

COMPLETED Phase 2

Phase II Randomized Open-Label Trial of Atovaquone Plus Pyrimethamine and Atovaquone Plus Sulfadiazine for the Treatment of Acute Toxoplasmic Encephalitis

NCT00000794

COMPLETED Phase 2

The Safety of Different Dose Levels of Zidovudine in HIV-Infected Children

NCT00000983

COMPLETED Phase 1

Active Immunization of HIV-1 Infected, Pregnant Women With CD4 Lymphocyte Counts >= 400/mm3: A Phase I Study of Safety and Immunogenicity of VaxSyn Recombinant gp160 (NOTE: Some Patients Receive Placebo)

NCT00000777

COMPLETED NA

A Study to Evaluate the Use of Cidofovir (an Experimental Drug) for the Treatment of Progressive Multifocal Leukoencephalopathy (PML) in AIDS Patients

NCT00000945

COMPLETED NA

The Addition of Indinavir to Anti-HIV Treatment in HIV-Infected Patients

NCT00000861

COMPLETED Phase 2

A Multicenter Phase II Double-Blind Exploratory Study to Evaluate Differences Among Various Zidovudine/Didanosine Regimens on Quantitative Measures of Viral Burden in Relatively Early HIV-1 Infection

NCT00000823

COMPLETED NA

The Safety and Effectiveness of Ganciclovir Used Alone or in Combination With Granulocyte-Macrophage Colony Stimulating Factor in the Treatment of Cytomegalovirus (CMV) of the Eye in Patients With AIDS

NCT00000989

COMPLETED Phase 1

Safety of Recombinant HIV Vaccines in HIV Infected Young Adults on Stable Therapy

NCT00107549

COMPLETED Phase 1

Safety of Saquinavir and High Doses of Lopinavir/Ritonavir in Children With HIV

NCT00084058

COMPLETED Phase 3

The Treatment of Tuberculosis in HIV-Infected Patients

NCT00001033

COMPLETED Phase 1

A Comparative Study of Combination Antiretroviral Therapy in Children and Adolescents With Advanced HIV Disease

NCT00000814

COMPLETED Phase 2

A Phase II Safety and Efficacy Study of Clarithromycin in the Treatment of Disseminated M. Avium Complex (MAC) Infections in Patients With AIDS

NCT00000644

COMPLETED NA

A Study to Compare the Effectiveness of a Four Drug Anti-HIV Regimen Given Alone or in Combination With GM-CSF or IL-12 to HIV-Positive Patients

NCT00000896

COMPLETED Phase 1

A Study of Itraconazole in Preventing the Return of Histoplasmosis, a Fungal Infection, in Patients With AIDS

NCT00000992

COMPLETED Phase 1

A Randomized Comparative Pharmacokinetic Study of Oral Ganciclovir After Treatment With Intravenous Ganciclovir for Cytomegalovirus Gastrointestinal Disease in AIDS Patients

NCT00000768

COMPLETED Phase 1

Blood Levels of Abacavir After One Dose in HIV-Infected Children and Adolescents

NCT00011479

COMPLETED Phase 3

A Study of AZT in HIV-Infected Patients With AIDS-Related Kaposi's Sarcoma

NCT00000994

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of UBI Multivalent HIV-1 Peptide Immunogen in HIV-1 Seronegative Human Subjects

NCT00000795

COMPLETED

A Study of Immune System Activity in Healthy Adults

NCT00014053

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Phase Distribution

PhaseTrial count
Phase 1 858
Phase 2 433
Phase 3 123
Phase 4 54

What is open in the National Institute of Allergy and Infectious Diseases (NIAID) pipeline

155 recruiting of 2,006 indexed (8% open); 1,642 completed (82%).

Phase mix: 177 late (III/IV) vs 1,291 early (I/II) (early-phase heavy).

Top condition: HIV Infections (195 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

National Institute of Allergy and Infectious Diseases (NIAID): open-pipeline peers nationwide

Peers matched on 2,006 registered trials and 8% open enrollment, not the therapeutic-area sidebar.

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 05001,0001,5002,0002,500 5%10%15%20% Total trials Recruiting share National Institute of Allergy and Infectious Diseases (NIAID)Massachusetts General HospitalMemorial Sloan Kettering Cancer CenterPfizerStanford UniversityAlumisAndrei IagaruBioXcel TherapeuticsCorporal Michael J. Crescenz VA Medical Center
National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 2,006 trials (± recruiting share)

Sponsors near 8% open enrollment (± trial volume)

What to do with this National Institute of Allergy and Infectious Diseases (NIAID) page

2,006 registered trials is a research-attention snapshot, not an endorsement of National Institute of Allergy and Infectious Diseases (NIAID) or any single study.

  • 155 of National Institute of Allergy and Infectious Diseases (NIAID)'s trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • HIV Infections is the condition National Institute of Allergy and Infectious Diseases (NIAID) studies most, compare against other sponsors active in the same condition before evaluating a specific study. See HIV Infections trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. National Institute of Allergy and Infectious Diseases (NIAID) pipeline card: 2,006 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.