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 7 of 41

COMPLETED Phase 3

B-Enhancement of HBV Vaccination in Persons Living With HIV (BEe-HIVe): Evaluation of HEPLISAV-B

NCT04193189

COMPLETED Phase 2

Evaluation of AMG 714 for Vitiligo

NCT04338581

COMPLETED Phase 3

Adaptive COVID-19 Treatment Trial 4 (ACTT-4)

NCT04640168

COMPLETED

COVID-19: Pediatric Research Immune Network on SARS-CoV-2 and MIS-C

NCT04588363

COMPLETED

Sample Collection for Systems Evaluation of Patients With Unknown or Incompletely Characterized Immune Defects

NCT04408950

COMPLETED Phase 1

Evaluating the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of the Monoclonal Antibody PGT121.414.LS Administered Alone and in Combination With VRC07-523LS Via Intravenous or Subcutaneous Infusions in Healthy, HIV-uninfected Adult Participants

NCT04212091

COMPLETED Phase 2

A Clinical Trial of the Safety, Pharmacokinetics and Hematologic Effects of Imatinib on Myelopoiesis in Adults When Given With and Without Isoniazid and Rifabutin

NCT03891901

COMPLETED Phase 2

ACTIV-5 / Big Effect Trial (BET-B) for the Treatment of COVID-19

NCT04583969

COMPLETED Phase 2

ACTIV-5 / Big Effect Trial (BET-A) for the Treatment of COVID-19

NCT04583956

COMPLETED Phase 1

Phase 1 Study of SAR440894 vs Placebo

NCT04441905

COMPLETED Phase 1

Dose, Safety, Tolerability and Immunogenicity of an Influenza H10 Stabilized Stem Ferritin Vaccine, VRC-FLUNPF0103-00-VP, in Healthy Adults

NCT04579250

COMPLETED Phase 1

Safety and Pharmacokinetics of VT-1598

NCT04208321

COMPLETED Phase 1

The Pharmacokinetics, Safety, and Tolerability of Abacavir/Dolutegravir/Lamivudine Dispersible and Immediate Release Tablets in HIV-1-Infected Children Less Than 12 Years of Age

NCT03760458

COMPLETED

SARS-COV2 Pandemic Serosurvey and Blood Sampling

NCT04334954

COMPLETED Phase 2

ACTIV-2: A Study for Outpatients With COVID-19

NCT04518410

COMPLETED Phase 3

Adaptive COVID-19 Treatment Trial 3 (ACTT-3)

NCT04492475

COMPLETED Phase 3

LY3819253 (LY-CoV555) for Inpatients With COVID-19 (An ACTIV-3/TICO Treatment Trial)

NCT05780268

COMPLETED Phase 3

ACTIV-3: Therapeutics for Inpatients With COVID-19

NCT04501978

COMPLETED

Surveillance of Individuals Following SARS-CoV-2 Infection

NCT04383444

COMPLETED

Collection of Anti-SARS-CoV-2 Immune Plasma

NCT04344977

COMPLETED

COVID-19 Associated Lymphopenia Pathogenesis Study in Blood

NCT04401436

TERMINATED Phase 2

Evaluating the Efficacy of Hydroxychloroquine and Azithromycin to Prevent Hospitalization or Death in Persons With COVID-19

NCT04358068

COMPLETED Phase 3

Adaptive COVID-19 Treatment Trial 2 (ACTT-2)

NCT04401579

COMPLETED

COVID-19: Human Epidemiology and Response to SARS-CoV-2

NCT04375761

COMPLETED

Immunophenotyping Assessment in a COVID-19 Cohort

NCT04378777

COMPLETED Phase 1

Safety and Immunogenicity Study of 2019-nCoV Vaccine (mRNA-1273) for Prophylaxis of SARS-CoV-2 Infection (COVID-19)

NCT04283461

COMPLETED Phase 3

Adaptive COVID-19 Treatment Trial (ACTT)

NCT04280705

COMPLETED Phase 2

Safety, Tolerability and Acceptability of Long-Acting Cabotegravir (CAB LA) for the Prevention of HIV Among Adolescent Males

NCT04692077

COMPLETED Phase 1

Evaluating the Safety and Immunogenicity of HIV-1 BG505 SOSIP.664 gp140 With TLR Agonist and/or Alum Adjuvants in Healthy, HIV-uninfected Adults

NCT04177355

COMPLETED Phase 1

Trial to Evaluate CIS43LS in Healthy Adults

NCT04206332

COMPLETED Phase 2

Long-Acting Cabotegravir Plus VRC-HIVMAB075-00-AB (VRC07-523LS) for Viral Suppression in Adults Living With HIV-1

NCT03739996

COMPLETED Phase 1

Safety and Pharmacokinetic Study of Tenofovir Alafenamide (TAF)/Elvitegravir (EVG) Administered Rectally

NCT04047420

COMPLETED Phase 1

Treg Modulation With CD28 and IL-6 Receptor Antagonists

NCT04066114

TERMINATED Phase 1

Safety and Pharmacokinetics of Rezafungin

NCT04117607

COMPLETED Phase 1

H1N1v Virus Challenge Study in Healthy Subjects

NCT04044352

COMPLETED Phase 2

Systems Analyses of the Immune Response to the Seasonal Influenza Vaccine

NCT04025580

COMPLETED Phase 1

Dosage-Escalation Study of the Safety and Immunogenicity of a Novel Rabies Vaccine ChAd155-RG vs. the Comparator RABAVERT Vaccine in Healthy Adult Subjects

NCT04019444

COMPLETED Phase 2

Suppression Of Bacterial Vaginosis (BV) [SUBVert]

NCT03930745

COMPLETED Phase 1

Evaluating the Safety and Immunogenicity of an HIV-1 gp41 MPER-656 Liposome Vaccine in Healthy, HIV-uninfected Adult Participants

NCT03934541

TERMINATED Phase 2

Asymptomatic Congenital CMV Treatment

NCT03301415

TERMINATED Phase 1

Safety and Immunotherapeutic Activity of an Anti-PD-1 Antibody (Cemiplimab) in Participants With HIV-1 on Suppressive cART

NCT03787095

COMPLETED Phase 3

Omalizumab as Monotherapy and as Adjunct Therapy to Multi-Allergen OIT in Food Allergic Participants

NCT03881696

COMPLETED Phase 1

Evaluating the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of Combinations of Monoclonal Antibodies PGT121, PGDM1400, 10-1074, and VRC07-523LS Administered Via Intravenous Infusion in Healthy, HIV-uninfected Adult Participants

NCT03928821

COMPLETED Phase 1

A Trial to Evaluate the Pharmacokinetics and Safety of AVYCAZ(R) in Combination With Aztreonam

NCT03978091

COMPLETED Phase 1

Evaluating the Safety and Immunogenicity of AGS-v PLUS, a Universal Mosquito-Borne Disease and Mosquito Control Vaccine

NCT04009824

COMPLETED Phase 1

Intravenous Fosfomycin Pharmacokinetics Study

NCT03910673

TERMINATED Phase 1

Safety and Immunogenicity of a Single Dose of the Recombinant Live-Attenuated Respiratory Syncytial Virus (RSV) Vaccines RSV ΔNS2/Δ1313/I1314L, RSV 6120/ΔNS2/1030s, RSV 276 or Placebo, Delivered as Nose Drops to RSV-Seronegative Children 6 to 24 Months of Age

NCT03916185

COMPLETED Phase 2

Safety and Efficacy of Subcutaneous Sarilumab in Improving the Quality of Life in People With Indolent Systemic Mastocytosis

NCT03770273

COMPLETED Phase 1

Flublok or Fluzone With Advax-CpG55.2 or AF03

NCT03945825

COMPLETED Phase 1

A Clinical Trial in Healthy, HIV-1-Uninfected Adult Participants to Compare the Safety, Tolerability and Immunogenicity of CH505TF gp120 Produced From Stably Transfected Cells to CH505TF gp120 Produced From Transiently Transfected Cells

NCT03856996

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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.