ClinicalTrials.gg
RecruitingNCT05144698Updated May 14, 2025

RAPA-201 Therapy of Solid Tumors

A Phase 1/2 interventional study of RAPA-201 Rapamycin Resistant T Cells and Chemotherapy Prior to RAPA-201 Therapy in Solid Tumor, Small Cell and Non-small Cell Lung Cancer and Head and Neck Cancer, sponsored by Rapa Therapeutics LLC. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-14.

Sponsored by Rapa Therapeutics LLC · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2026, 10 months ago, but the record still lists the study as recruiting.
  • Registered 3 months after the study started (first participant enrolled Aug 2021, registered Nov 2021).
  • Started Aug 2021; still recruiting 5 years 3 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
37
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The therapy of solid tumors has been revolutionized by immune therapy, in particular, approaches that activate immune T cells in a polyclonal manner through blockade of checkpoint pathways such as PD-1 by administration of monoclonal antibodies. In this study, the investigators will evaluate the adoptive transfer of RAPA-201 cells, which are checkpoint-deficient polyclonal T cells that represent an analogous yet distinct immune therapy treatment platform for solid tumors. The administration of polyclonal, metabolically-fit RAPA-201 cells is a novel adoptive T cell therapy approach that is suitable for regenerative medicine efforts.

RAPA-201 is a novel immunotherapy product consisting of reprogrammed autologous CD4+ and CD8+ T cells of Th1/Tc1 cytokine phenotype. RAPA-201, which have acquired resistance to the mTOR inhibitor temsirolimus, are manufactured ex vivo from peripheral blood mononuclear cells collected from solid tumor patients using a steady-state apheresis. The novel RAPA-201 manufacturing platform, which incorporates both an mTOR inhibitor (temsirolimus) and an anti-cancer Th1/Tc1 polarizing agent (IFN-alpha) generates polyclonal T cells with five key characteristics:

  1. Th1/Tc1: polarization to anti-cancer Th1 and Tc1 subsets, with commensurate down-regulation of immune suppressive Th2 and regulatory T (TREG) subsets;
  2. T Central Memory: expression of a T central memory (TCM) phenotype, which promotes T cell engraftment and persistence for prolonged anti-tumor effects;
  3. Rapamycin-Resistance: acquisition of rapamycin-resistance, which translates into a multi-faceted anti-apoptotic phenotype that improves T cell fitness in the stringent conditions of the tumor microenvironment;
  4. T Cell Quiescence: reduced T cell activation, as evidence by reduced expression of the IL-2 receptor CD25, which reduces T cell-mediated cytokine toxicities such as cytokine-release syndrome (CRS) that limit other forms of T cell therapy; and
  5. Reduced Checkpoints: multiple checkpoint inhibitory receptors are markedly reduced on RAPA-201 cells (including but not limited to PD-1, CTLA4, TIM-3, LAG3, and LAIR1), which increases T cell immunity in the checkpoint-replete, immune suppressive tumor microenvironment.

This is a non-randomized, open label, multi-site, phase I/II trial of outpatient RAPA-201 immune T cell therapy in patients with advanced metastatic, recurrent, and unresectable solid tumors that have recurred or relapsed after prior immune therapy. Patients must have tumor relapse after at least one prior line of therapy and must have refractory status to the most recent regimen, which must include an anti-PD-(L)1 monoclonal antibody. Furthermore, accrual focuses upon solid tumor disease types potentially amenable to standard-of-care salvage chemotherapy consisting of the carboplatin + paclitaxel (CP) regimen that will be utilized for host conditioning prior to RAPA-201 therapy. Importantly, carboplatin and paclitaxel are "immunogenic" chemotherapy agents whereby the resultant cancer cell death mechanism is favorable for generation of anti-tumor immune T cell responses. Thus, the CP regimen that this protocol incorporates is intended to directly control tumor progression and indirectly promote anti-tumor T cell immunity.

Protocol therapy consists of six cycles of standard-of-care chemotherapy (carboplatin + paclitaxel (CP) regimen) administered in the outpatient setting every 28 days (chemotherapy administered on cycles day 1, 8, and 15). RAPA-201 cells will be administered at a target flat dose of 400 X 10\^6 cells per infusion on day 3 of cycles 2 through 6.

In the original protocol design, a sample size of up to 22 patients was selected to determine whether RAPA-201 therapy, when used in combination with the CP regimen, represents an active regimen in solid tumors that are resistant to anti-PD(L)-1 checkpoint inhibitor therapy, as defined by a response rate (≥ PR) consistent with a rate of 35%. The first stage of protocol accrual consisted of n=10 patients; to advance to the second protocol accrual stage (accrual of an additional n=12 patients), RAPA-201 therapy must result in a tumor response (≥ PR) in at least 2 out of the 10 initial patients. As described below in the detailed description, this original protocol implementation demonstrated that RAPA-201 represented an active treatment regimen for solid tumor patients, and as such, the protocol was expanded to evaluate the combination of RAPA-201 therapy followed by anti-PD1 maintenance therapy.

Read the detailed description

The therapy of solid tumors has been revolutionized by immune therapy, in particular, approaches that activate immune T cells in a polyclonal manner through blockade of checkpoint pathways such as PD-1 by administration of monoclonal antibodies. In this study, the investigators will evaluate the adoptive transfer of a reprogrammed T cell population termed RAPA-201 cells, which are checkpoint-deficient polyclonal T cells that represent an analogous yet distinct treatment platform for solid tumor immune therapy.

RAPA-201 is a novel T cell immunotherapy product that is comprised of autologous CD4+ and CD8+ T cells of Th1/Tc1 cytokine phenotype. The RAPA-201 cells, which have acquired resistance to the mTOR inhibitor temsirolimus, are manufactured ex vivo from peripheral blood mononuclear cells collected from solid tumor patients using a steady-state apheresis. RAPA-201 cells are also being evaluated for the therapy of relapsed, refractory multiple myeloma and was granted Fast Track Status by the FDA for this indication. The novel method of RAPA-201 manufacturing, which incorporates both an mTOR inhibitor (temsirolimus) and an anti-cancer Th1/Tc1 polarizing agent (IFN-alpha) generates a polyclonal T cell population with the following five key characteristics:

  1. Th1/Tc1: polarization to the anti-cancer Th1 and Tc1 subsets, with commensurate down-regulation of immune suppressive Th2 and regulatory T (TREG) subsets;
  2. T Central Memory: expression of a T central memory (TCM) phenotype, which promotes T cell engraftment and persistence necessary for prolonged anti-tumor effects;
  3. Rapamycin-Resistance: acquisition of rapamycin-resistance, which translates into a multi-faceted anti-apoptotic phenotype that improves T cell fitness in the stringent conditions of the tumor microenvironment;
  4. T Cell Quiescence: reduced T cell activation, as evidence by reduced expression of the IL-2 receptor CD25, which reduces the chance of T cell-mediated cytokine toxicities such as cytokine-release syndrome (CRS) that limit other forms of T cell therapy; and
  5. Reduced Checkpoints: multiple checkpoint inhibitory receptors are markedly reduced on RAPA-201 cells (including but not limited to PD-1, CTLA4, TIM-3, LAG3, and LAIR1), which increases T cell immunity in the checkpoint-replete, immune suppressive tumor microenvironment.

This is a multi-site phase I/II study evaluating RAPA-201 cells in up to 22 patients with relapsed solid tumors who have disease progression after anti-PD1 pathway monoclonal antibody therapy. In the initial protocol implementation, which studied n=22 evaluable participants, patients with malignant melanoma, small cell lung cancer, non-small cell lung cancer, gastric cancer, and squamous cell head and neck cancer were accrued. RAPA-201 therapy caused iRECIST-defined partial responses in 10 of 22 patients, with responses in melanoma (6/10 PR, 60% response rate), small cell lung cancer (2/3 PR, 66% response rate), and head and neck cancer (2/3 responses, 66% response rate). On the basis of this significant response rate in metastatic, treatment-resistant malignant melanoma, RAPA-201 treatment for this disease indication was granted the Regenerative Medicine Advanced Therapeutics (RMAT) designation by the US FDA. Some patients with non-small cell lung cancer had a delay in time to progression relative to their previous treatment regimen. RAPA-201 therapy was also safely administered exclusively in the outpatient setting; specifically, there were no adverse events of any grade attributable to RAPA-201, including no cytokine release syndrome (CRS). Given these early signals of safety and efficacy, the protocol was amended to accrue n=15 additional participants. Given the phase 1 response data, the additional n=15 study participants will consist of patients with refractory melanoma, small cell lung cancer, squamous cell head and neck cancer, and non-small cell lung cancer. In addition, this expanded cohort of n=15 study participants will receive anti-PD1 monoclonal antibody maintenance therapy after RAPA-201 cell therapy (patients in the initial n=22 study cohort did not receive anti-PD1 maintenance). The study evaluates adoptive T cell therapy using autologous rapamycin-resistant Th1/Tc1 cells (RAPA-201) in the context of a standard-of-care chemotherapy regimen comprised of carboplatin plus paclitaxel (CP Regimen), which is considered "immunogenic" chemotherapy whereby the resultant cancer cell death mechanism is favorable for the generation of anti-tumor immune T cell responses. Therefore, the CP regimen that this protocol incorporates is intended to both directly control tumor progression and indirectly promote anti-tumor T cell immunity.

To be eligible for the protocol, a subject will be required to have a circulating absolute lymphocyte count (ALC) of ≥ 300 cells per microliter. This parameter will help ensure that a sufficient number of autologous RAPA-201 cells can be manufactured from a steady-state apheresis product. Once the apheresis product has been received at the manufacturing site, the subject can initiate the first cycle of the CP Regimen, which will be administered over a 28-day interval.

Within 10 days after positive determination of study eligibility (and subject enrollment), two key actions will occur: (1) T cells will be collected by steady-state apheresis and sent to the manufacturing site at Rapa Therapeutics; (2) and the patient will start Cycle 1 of the CP Regimen (with a window of up to 7 calendar days to begin).

The Carboplatin-Paclitaxel (CP) regimen will be given alone for Cycle 1 and in combination with RAPA-201 cells for Cycles 2-6. After the completion of the treatment portion of the study, the subject will enter the follow-up component that will last for 6 months.

Cycle 1 of the CP Regimen will be a 28-day cycle, which will allow for time to manufacture the RAPA-201 cell product. According to standard-of-care practice, the carboplatin and paclitaxel will be administered on days 1, 8, and 15 of each cycle. Each cycle, beginning with Cycle 1, may be delayed or extended for up to four weeks, if needed for various reasons, including: logistical considerations, resolution of adverse events, or if there is a delay in RAPA-201 manufacturing. Requests for using additional time between cycles, other than the visit windows specified in the Schedule of Events, should be approved by the Medical Monitor.

Cycles 2-6 will also be 28-day cycles but will include the infusion of RAPA-201 cells at a target flat dose of 400 X 10\^6 cells per infusion (administered on day 3 of the CP regimen).

A sample size of n= 15 patients in the amended protocol design was selected to evaluate the safety and potential beneficial ant-tumor effect RAPA-201 therapy plus anti-PD1 maintenance therapy.

02

Conditions studied

  • Solid Tumor
  • Small Cell and Non-small Cell Lung Cancer
  • Head and Neck Cancer
  • Squamous Cell Carcinoma of Oral Cavity
  • Squamous Cell Carcinoma of Larynx
  • Squamous Cell Carcinoma of Nasopharynx
  • Squamous Cell Carcinoma of Other Specified Sites of Skin
  • Malignant Melanoma
  • Esophageal Squamous Cell Carcinoma

Keywords

  • Refractory to Checkpoint Therapy
  • PD-1
  • PD-L1
  • Adoptive T cell therapy
  • Regenerative Medicine
03

In context

Carcinoma, Non-Small-Cell Lung

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's planned enrollment of 37 is below the median of 62 across 6,019 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Lead sponsor

Rapa Therapeutics LLC is the lead sponsor of 6 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female patients ≥ 18 years of age.
  2. (ECOG) performance status of ≤ 2.
  3. Advanced , recurrent, and unresectable solid tumor that has after ≥ one .
  4. Subject must have received prior therapy with disease-specific regimens that have been established to convey a clinical benefit. Alternatively, subject must have been offered such regimens and provided written documentation of refusal to receive such regimens.
  5. Subject with solid tumors with genetic alterations and mutations (including but not limited to BRAF, BRCA, EGFR mutations, and ALK translocations) must have either received targeted therapy for such conditions or provided written documentation of refusal to receive such regimens.
  6. Exposure to an anti-PD-(L)1 monoclonal antibody therapeutic in the most recent line of prior therapy.
  7. Documented refractory status to the most recent regimen, which must include an anti-PD-(L)1 monoclonal antibody, as defined by lack of response after at least two cycles of therapy or relapse within 12-months of initiation of anti-PD-(L)1-containing therapy.
  8. Solid tumor disease types that are eligible for enrollment consist of:

    1. head and neck cancer (squamous cell carcinoma of oral cavity, larynx, nasopharynx, and other sites);
    2. malignant melanoma;
    3. small cell carcinoma, thoracic and extra-thoracic; and,
    4. non-small cell lung cancer.
  9. Presence of to permit monitoring by RECISTv1.1 Criteria.
  10. Must have a potential source of autologous T cells potentially sufficient to manufacture RAPA-201 cells, as defined by a circulating absolute lymphocyte count (ALC) of ≥ 300 cells/μL.
  11. Patients must be ≥ two weeks from last solid tumor cancer chemotherapy, major surgery, radiation therapy and/or participation in trials.
  12. Patients must have recovered from clinical toxicities (resolution of (v5) toxicity to a value of ≤ 2).
  13. (EF) by MUGA or 2-D echocardiogram within institution normal limits, with an EF level of ≥ 40%.
  14. Calculated of ≥ 60 mL/min/1.73 m\^2.
  15. (AST) and Alanine aminotransferase (ALT) ≤ 3 x .
  16. (Absolute neutrophil count) of ≥ 1500 cells/μL.
  17. count ≥ 100,000 cells/μL.
  18. count ≥ 8 grams/μL.
  19. ≤ 1.5 mg/dL (except if due to Gilbert's disease).
  20. Corrected DLCO ≥ 50% (Pulmonary Function Test)
  21. No history of abnormal bleeding tendency (as defined by any inherited coagulation defect, or history of internal bleeding).
  22. Voluntary written consent must be given before performance of any study related procedure not part of standard medical care, with the understanding that consent may be withdrawn by the patient at any time without prejudice to future medical care.

Exclusion criteria

Exclusion Criteria:

  1. Other active (except non-melanoma skin cancer).
  2. \< 4 months.
  3. Seropositivity for , , or , unless such conditions are in stable condition using adequate treatment.
  4. Uncontrolled hypertension.
  5. History of cerebrovascular accident within 6 months of enrollment.
  6. Myocardial infarction within 6 months prior to enrollment.
  7. class III/IV congestive heart failure.
  8. Uncontrolled angina/ischemic heart disease.
  9. Cancer to the central nervous system, unless such metastasis has been adequately treated.
  10. Pregnant or breastfeeding patients.
  11. Patients of childbearing age, or males who have a partner of , who are unwilling to practice .
  12. Patients may be excluded at the discretion of the PI or if it is deemed that allowing participation would represent an unacceptable medical or psychiatric risk.
Terms in these criteria, in plain language(23)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
37 participants (estimated)

Study arms

  • Experimental
    Administration of RAPA-201 cells

    RAPA-201 cells will be administered at a target flat dose of 400 x 10\^6 cells per infusion. After RAPA-201 therapy, anti-PD1 maintenance therapy (pembrolizumab, 200 mg administered intravenously every 3 weeks for up to 12 months)

    Biological: RAPA-201 Rapamycin Resistant T Cells · Drug: Chemotherapy Prior to RAPA-201 Therapy · Drug: Pembrolizumab (PD-1 Blocking Antibody)

Interventions

06

What researchers measure

Primary outcomes

  1. Determine the rate of Treatment Emergent Adverse Events of RAPA-201 using host conditioning of Carboplatin plus Paclitaxel

    To determine the safety of RAPA-201 cell therapy when used in combination with a carboplatin plus paclitaxel (CP) standard-of-care chemotherapy regimen and in combination with anti-PD1 maintenance therapy. Specifically, the treatment will be determined to be safe if the following parameters are met: (Metric #1) using the metric of "grade 4/grade 5 toxicity toxicity attributable to the RAPA-201 cell therapy": for positive determination of safety, this metric must occur in 1 or fewer patients out of the initial 10 patients.

    Time frame: Completion of RAPA-201 Therapy plus combination anti-PD1 maintenance therapy; occurs on average at 18-months after treatment initiation

Secondary outcomes

  1. Overall Response Rate

    To determine the overall RECISTv1.1 criteria response rate (partial response or better) of autologous RAPA-201 cells and standard-of-care chemotherapy (carboplatin + paclitaxel) plus anti-PD1 maintenance therapy in patients with solid tumors resistant to PD-(L)1.

    Time frame: One (1) year after the last dose of RAPA-201 cells.

  2. Progression Free Survival (PFS) and Overall Survival (OS)

    To characterize the effect of therapy on solid tumor disease control, as measured by progression free survival (PFS) and overall survival (OS).

    Time frame: One (1) year after the last dose of RAPA-201 cells.

  3. Quality of Life (QOL)

    To evaluate effect of therapy on quality of life (QOL) using the Short Form-36 Survey.

    Time frame: One (1) year after the last dose of RAPA-201 cells.

Other outcomes

  1. T Cell Immune Reconstitution

    To characterize the phenotype of immune T cell reconstitution, as defined by peripheral blood T cell count, which will be determined by flow cytometry using the CD3+ marker. CD3+ T cell count will be compared pre-treatment (at study entry) and at one-year after study start.

    Time frame: One (1) year after study start.

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05144698
Lead sponsor
Rapa Therapeutics LLC
Responsible party
Sponsor
First posted
Dec 3, 2021
Start date
Aug 1, 2021
Primary completion
Jan 1, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
May 14, 2025

Study contacts

Daniel Fowler, M.D.
Contact
dan@rapatherapeutics.com
(301) 518-3104
Jennifer Sunga - Regulatory Affairs Associate
Contact
jsunga@rapatherapeutics.com
(571) 277-4916
Daniel Fowler, M.D.
study director · Rapa Therapeutics LLC

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Autologous rapamycin-resistant TH1/TC1 cells RAPA-201

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